The Network Camera/ Network IR Camera/ Network Cameras/ Network Camera HD/ IP Camera Wifi/ IP Cameras/ Mini IP Cam, also called the IPC, WEBCAM, or WEB Camera, is a new-generation camera that combines the traditional camera and the network technology. And the user can monitor the Network Camera images just with a standard web browser (such as the "Microsoft IE or Netscape).
The design of the world's first Network Camera is originated from two scientists who wanted to drink coffee.
In 1991, only the main computer room of the Cambridge University Computer Research Center had a coffee maker. From time to time, scientists from other rooms ran to the main computer room but found that the coffee was drank up. In order to solve the problem of a wasteful trip when pouring coffee, scientists Fraser and Paul thought of assembling a device that can monitor the coffee maker in the main room. They first pointed a camera at the coffee maker, set to take three photos per minute, and then wrote a program to send the camera pictures to the research department`s internal network. Then, the Cambridge University successfully installed the first Network Camera in the world.
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Second, urine washing mixture solution: with nitrogen supply, eliminate the two effects. Weigh 0.5-1 kg of urea, 100 kg of water, and 70-100 g of detergent. With the spray, do not put long after the match.
Third, superphosphate leaching solution: with phosphorus and cotton pest control role. Take 2-3 kilograms of high-quality powdery superphosphate, add 100 kilograms of water, mix well, place it for 24 hours, filter, and take the foliar spray of the filtrate.
Fourth, potassium dihydrogen phosphate solution: 300 grams of potassium dihydrogen phosphate, spraying 100 kilograms of water.
5. Nitrogen, phosphorus and potassium mixed solution: Prepare 100kg of 2%-3% concentration of superphosphate water leachate, add 0.3-0.5kg of urea and 1-1.5kg of potassium sulfate.
6. Potassium sulphate solution: The common concentration is 1% to 1.5% in 100 kg of water, and 1-1.5 kg of potassium sulfate is added.
Seven, ash leaching of plants: Take fresh grass ash 5-7 kg without rain, 100 kg of fresh water, stir for 14 hours, take clear liquid spray.
Eight, zinc sulfate solution: take 100-200 grams of zinc sulfate, add 100 kg of water. If a small amount of lime aqueous solution is added to the prepared zinc sulfate aqueous solution, the foliar spraying effect of the zinc fertilizer can be improved.
Nine, borax solution: take 200-300 grams of borax, 100 kg of clear water. Due to the slow dissolution of borax in cold water, it can be first opened with 4-5 kg ​​of warm water at 45°C, and then 95-96 kg of water can be used.
X. Copper sulfate solution: For every 100 kg of clear water, add 30-50 grams of copper sulfate. To avoid poisoning, add a small amount of lime water.
Eleventh, ferrous sulfate solution: take 200-300 grams of ferrous sulfate, 100 kg of water. Because iron fertilizer has poor fluidity in the leaves, it should be applied several times and should be sprayed evenly and finely sprayed. The front and back sides of the leaves must be sprayed. Adding 50-70 grams of detergent to 100 kg of iron fertilizer solution works better.
Twelve, manganese sulfate solution: take 50-100 grams of manganese sulfate, 100 kg of water spray.
Thirteen, ammonium molybdate solution: take 50-100 grams of ammonium molybdate, add 100 kg of leaf spray.
XIV. Biogas Liquid Diluent: Biogas slurry is rich in nitrogen, and leaves are easy to absorb. The effect of fertilizer is rapid. Take 10 kg of biogas slurry and spray 100 kg of water. Immediately after use to avoid nitrogen evaporation.
Fifteenth, rare earth fertilizer solution: foliar spray, can increase chlorophyll content and enhance photosynthesis. The spraying concentration of crops and fruit trees ranges from 0.08% to 0.10%. For every 100 kilograms of clean water, 80-100 ml of rare earth microelement fertilizer can be added.
As a new generation product that combines the traditional camera and the network video technology, in addition to the image capturing function of the traditional cameras, the Network Camera also has a built-in digital compression controller and a WEB-based operating system; which makes the video data compressed and encrypted, and then delivered to the end users via the local area network, internet or wireless network. The remote user can use a standard web browser on the PC to access the network camera according to the IP address of the network camera, monitor the on-site situation of the target site, edit and store the image data, and can even control the camera PTZ and lens to achieve the monitor in all directions.
Nowadays, the Network Camera are being used more and more widely. So do you know how the Network Camera was invented? Well, here is a story.
On November 22nd, 1993, the real "Internet camera" was born and it was still in the computer research department of the Cambridge University. The laboratory which another scientist named Johnson was at could not be connected to the internal network. Johnson could not use the previous monitoring software to check the coffee, so he wrote a program to make his own computer can receive photos from the camera; which makes the breakthrough of the camera from the internal network to the World Wide Web, realized.
Since then, millions of people from all over the world have joined the "coffee pot watching activity" through the Internet. In 2011, due to the obsolete equipment and the inability to maintain it, Cambridge computer scientists finally shut down the Network Camera.
Formulating Fifteen Fertilizers for Crops
First, urea solution: commonly used concentrations of 0.5% -1%, 0.5-1 kg of urea, 100 kg of clean water. Diamine content of urea toxic substances more than 1.5%, can not be used for foliar fertilizer.
In conclusion, the Network Camera was invented because of the daily needs, and it brought great convenience to our daily life and is helping sloving more and more problems for people all over the world.