Galvanized Steel Fence
Steel fence is also known as steel picket fence,
ornamental steel fence. The panels are manufactured using the
highest-strength steel pickets and rails, and are available in a wide
range of sizes and styles.
Material: Galvanized steel Q195 or Q235
Finish: galvanized and powder coated
Main market: America, Canada, Australia, Europe, etc
Galvanized Steel Fence,Prefabricated Steel Fence,Galvanized Steel Fence Post,Galvanized Steel Pipe Fence HeBei Bosen Metal Products Co.,Ltd , https://www.bosenfence.com
How to distinguish between true and false TCP and IP products
[ Pacific Security Network News ]
Do you know how to distinguish between true and false TCP and IP products? This article is a detailed explanation for the Pacific Security Network. We know that among the attendance and access control products currently on the market, because many merchants claim to have developed new products based on TCP/IP communication, after passing some new products on the market. After the analysis, we found that there are roughly three types of technical implementation:
The first category is the complete "fake TCP/IP product":
That is to say, no changes are made to the original products that use the traditional 485 for communication. Only when the actual networking of the product is applied, an independent 485-TCP/IP data communication conversion module is installed at the upper end of the traditional 485 bus to realize transparent conversion and transmission of data. .
The second category is called "pseudo TCP/IP products" assembled:
The product circuit that used the traditional 485 communication will be slightly modified, and a new 485-TCP/IP conversion circuit module will be added. The circuit of the whole product is composed of two parts, one part is the core circuit of the original product, and the other part is the other part. It is a newly added conversion circuit, each with its own central processing unit. In fact, the external 485-TCP/IP conversion module mentioned in the first type of implementation is built into the original product. However, this solution is due to the core part. It is still composed of the original products, but simply increases the conversion circuit. There is a data conversion bottleneck between the conversion circuit and the original core circuit. Therefore, the inherent low-order nature of the original product and the small amount of transmission data cannot be fundamentally solved. It also brings additional problems such as waste of resources, unstable products, and high maintenance costs. Therefore, it can be seen that this is a compromise solution for abandoning product performance in order to quickly launch products, so such products are called "pseudo-TCP/ IP products".
The circuit of the whole product consists of two parts, one is the core circuit of the original product, and the other part is the newly added conversion circuit, each with its own central processor, which is actually mentioned in the first type of implementation. The external 485-TCP/IP conversion module is built in the original product. However, since the core part is still composed of the original product, it simply adds the conversion circuit, and there is a data conversion bottleneck between the conversion circuit and the original core circuit. Therefore, the inherently poor real-time performance of the original product and the small amount of transmitted data cannot be fundamentally solved, and it also brings additional problems such as waste of resources, unstable products, and high maintenance costs. Therefore, it can be seen that this is a quick A compromise between product launches and product performance is a compromise, so such products are called "pseudo-TCP/IP products."
The third category is the real new product based on TCP/IP communication: the circuit and function of the whole product are highly integrated.
The whole product has only one super central processor, no need for any conversion additional circuit, the super central processor completes all access control attendance application tasks and data communication tasks, there is no data conversion bottleneck problem inside, and the efficiency is extremely high. Adopting such a solution The products developed are of reliable quality and high performance.
Therefore, as a wise customer, you should choose the third category of products to maximize your investment and get the best price/performance ratio.