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Household camera lens detailed parameters

2026-07-26 00:12
2026-07-26 03:24

The following are the detailed parameters of some home camera lenses: ** 1. Pieces and resolution ** 1. ** Pieces affect image quality **: Pieces are an important factor in determining the image quality of the camera. The higher the number of pixels, the higher the resolution. Theoretically, the better the image quality, but the cost and practical requirements must also be considered. The mainstream home camera's resolution was above 1080p (2 million resolution). Generally, 2 million resolution indoors could meet the demand, and 4 million resolution outdoors was more suitable. 2. ** resolution and network transmission **: The basic parameters of resolution are the number of pixels.For home cameras that transmit images through the network, the balance between image clarity and network speed is very important. It is not that the higher the resolution is, the better it is because the higher the resolution, the larger the storage space required and the higher the requirements for home network bandwith. The resolution of mainstream home cameras on the market is generally between 2 million and 4 million. This range can meet the daily needs of observing details such as faces and movements. ** 2. Perspective ** 1. ** Small room option **: If the room is small, you can choose a wide-angle 2.8mm card machine. 2. ** General situation **: Most household products support the rotation of the lens. When the camera is installed in the corner of the wall, you can see the front at a 90-degree angle. The indoor camera can be rotated horizontally (left and right) at about 340 - 360 degrees, and vertically (up and down) at 90 - 120 degrees. It can basically achieve 360-degree surveillance without blind spots. 3. ** Focus of the lens **: The focal length of the lens is the core parameters, which determines the range and distance of the monitoring angle. The home camera had a wide angle of view. The focal length range was usually between 2.8mm and 12mm. It could monitor the environment within a range of 3 - 20m. The zooming lens could adjust the focal length according to the distance of the observed object. ** 3. Radio band ** Pay attention to matching the frequency band of the home router. It supports 2.4G or 5G (not 5G/4G for mobile phone signals), and it is best to support dual-band. ** 4. Night Vision Function ** 1. ** infrared night vision **: Most home cameras support infrared night vision. They illuminate objects with infrared fill light and use the infrared light reflected by the object to form an image. When the light is dim, the image can be clearly formed, but the image has no color, and details such as faces are difficult to see clearly. 2. ** Full Color Night Vision **: Able to display a colorful image at night. The details are better than infrared night vision. However, the fill light may be switched on and off frequently when moving objects are detected at night (mosquitoes are easy to attract in summer). You need to choose according to your needs. ** 5. Storage Method ** 1. ** Local Storage **: Save the video in the built-in memory card of the camera. The advantage is that you don't have to pay. The disadvantage is that the storage capacity is limited. If the card is damaged, the video will be lost. If the camera is damaged, the video will also be lost. 2. ** Cloud Storage **: The video is stored in the cloud server of the product manufacturer. The recording is safe unless the platform fails, but it requires payment. ** 6. Intelligent Function ** 1. ** Movement Tracking **: automatically tracks moving objects and sends real-time alarm messages to mobile phones and other devices. 2. ** Alarm function **: When an abnormal situation is detected, an alarm sound will be immediately emitted and uploaded to the mobile app. 3. ** Voice intercom **: Similar to a walkie-talkie, it can achieve two-way voice communication. Read more exciting novels for free

Latest Questions

The first summer is still clear and the fragrant grass has not stopped translating

The early summer was still fresh and warm, and the grass did not stop growing. While waiting for the TV series, he could also read the exciting content related to this site!

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2026-07-27 20:33

Dragon Ball surpasses Batos

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2026-07-27 20:32

Wang Xinling changed to a star and apologized

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2026-07-27 20:32

Desperate Struggle Series of novels

He recommended a few novels. " This Net King Is A Little Messy " was a light novel by Kishiki Kishihara. It was about a small otaku dressed as Sorajo Shotaro who was struggling in the world of the Net King. The book review was a little special. It was added by the author himself. "Nascent Soul Formation at the beginning of the game, parents are yellow-haired delinquents?" It was written by Lingling. The protagonist, Zhang Chaoqiang, was miserable in his previous life. After accumulating merit for three lifetimes, he was reincarnated, but he met his father and mother. However, he had activated his talent and had grown strange in the modern world, so it was easy for him to eat. "Endless Force" is written by Wen Ruocheng. The main character was a joker seeking death in a strange world. It was similar to Thriller Paradise. The main character was neurotic. Although there were some shortcomings, the book was still a good read. " The Reversal of Online Games ", Zhang Yang's creation in May. The main character Li Huailin made his own game pod and entered the game. His character became a BUG, and his experience was deducted from killing monsters. Later on, he realized that he was seeking death to level up. It was very funny and creative. " Exterminating Evil Begins from Smelting Runes ", a fantasy novel written by Fisherman Watching the Sea. Everything in the world was talismans. The main character Fang Bei's talisman spirit could smelt talisman scripts and create all kinds of powerful talismans. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>

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2026-07-27 20:32

What are the names of leisurely assassin novels that recommend girls?

The following were some assassin novels that were suitable for girls: Lu Zhaozhao's Assassin's Notes, which had characters such as the energetic young assassin; The Soft Imperial Concubine was a spy, which told the story of the spy imperial consort and the cold emperor; and the female protagonist Liu Qingli, nicknamed " Unforgiving ", was the world's number one assassin. In the book, she set up traps, used poison, and designed murder cases as an assassin, while solving new cases. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>

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2026-07-27 20:32

What does the proficiency of a Hero in Mobile Legends represent?

In Mobile Legends, the proficiency of a hero was an important indicator of a player's mastery of a hero. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>

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2026-07-27 20:32

Throat is dry and painful, have foreign body feeling fever how to do? What medicine to take?

If the throat is dry and painful, there is a foreign body sensation and a fever, it may be caused by diseases such as sore throat. The following are some suggestions for medication: - If it was throat pain, dry itching, etc. caused by wind-heat, he could use compound houttuyn syrup and Jinhoujian spray. - If the deficiency fire caused by lung yin deficiency rises, the symptoms are severe dry and itchy throat, dry cough with little phlegm, sore throat, burning feeling, etc. You can try Xuanmai Ganju Granules. - If it is considered to be caused by a bacteria infection, you can take amoxicilin, Qingkailing granules, and Yankang lozenges. It should be noted that it is best to consult a professional doctor before taking the medicine. At the same time, drink more water, avoid spicy and stimulating food, pay attention to oral hygiene, brush your teeth in the morning and evening and after meals, and reduce smoking and alcohol. If the fever is high or the symptoms persist, you should seek medical attention immediately. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>

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2026-07-27 20:32

How did the novel Scarlet end?

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2026-07-27 20:32

Zhao Yaoke's profile

Zhao Yaoke was born on February 19, 1995 in Chengdu City, Sichuan Province. She was 176cm tall and weighed 55kg. She graduated from the University of San Francisco in the United States. She was a female singer and actress from Mainland China, and a member of the female singing group, Kogirls. In February 2017, her first performance," Light Years Distance Between You and Me," was broadcast. She entered the entertainment industry by playing the role of " Lisa." In November, she joined " Kogirls." The following month, she released her first music album with the group," Ultimate Girl." In January 2018, she received attention as the second female lead, Song Xiangsi, in " The Nation's Husband." In April, she participated in " Creation 101 " and got 24th place, further increasing her popularity. In April 2019, she was ranked 54th among the 100 most beautiful new faces in LikeTCCAsia China. In June 2020, she starred for the first time in the costume drama "Song of the Four Seasons" as the second female lead "Wen Suyu". In April 2021,"The Imperial coroner", which he participated in, received rave reviews after it was broadcast. When it ended, his Douban score was as high as 9.3. In November 2022, she starred in " You're My Delicacy " with Jang Hyok. On February 16th, 2023," Next Stop Your World ", which he starred in, would premiere. On December 7th," Romance in the Red Dust ", which he starred in, would be broadcasted exclusively on the entire network of QQ videos. In 2024, she would play the female tyrant in her new drama,"I am Zhao Wudi," and would also star in "Dear Mr. Farmer," which would tell the story of the top perfume perfumer Su Tian and Mr. Farmer Lu Jiang. It would premiere in the mainland of China in 2025. " Oh, My Yao " was equally exciting. Everyone, please click to read it!

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2026-07-27 20:32

The novel Supreme Godly Emperor Qin Chen is free to read.

According to the information provided, there was a novel called " Supreme God Emperor " that told the story of the young Ye Chen. He was the illegitimate son of the Ye family of the Cloud Mist Empire. He had continuously increased his strength through obtaining the " Nine Yang Scripture " and other fortuitous encounters. After experiencing many challenges, he became a God Emperor and started a new journey. There were also novels about Qin Chen. Qin Chen had the mysterious ancient book, the Nine-star God Emperor Diagram, the mysterious embroidered sword, and other treasures on him. After his Stargate was robbed and his cultivation base was crippled, he awakened the memories of his nine lives and started a new journey. However, he did not find any specific connection between the two novels. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>

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2026-07-27 20:31
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