With the acceleration of urbanization, the subway has become an important means to solve urban traffic congestion. As the "artery" of modern cities, the subway plays an increasingly important role in people's daily life. In order to ensure the safe and efficient operation of the subway, the requirements for its hardware equipment are becoming increasingly stringent.
The subway is an important means of transportation in modern cities, which not only carries a large number of passengers, but also generates a large amount of data. These data include, but are not limited to: passenger flow data, train operation status data, monitoring** data, equipment operation status data, etc. This data is essential for metro operations management, safety monitoring, and optimal scheduling.
1. Challenges under the application of industrial control equipment.
As an important part of the subway, the storage system is very important for the stable operation of the subway. Due to the particularity and complexity of the use environment, the subway has strict requirements for storage. The main challenges encountered are as follows:
1. The operating environment of the subway is more complex, and it may encounter extreme high and low temperature environments. SSDs need to operate stably in this environment, while also being able to withstand certain mechanical vibrations and shocks.
2. The monitoring system of the subway needs to run for a long time and without interruption, which requires the solid state drive to have high data security and ensure the integrity of the data in the event of an unexpected power failure.
3. The equipment of the subway system needs to have a long service life and reliability to reduce maintenance costs. The longevity and reliability of SSDs have a direct impact on the stability of the entire system.
4. The subway system needs to record the running status of the train, passenger flow, platform conditions, etc. in real time, so that it can respond quickly when abnormal situations occur. Not only is this monitoring** data massive, but it also needs to be stored for a long time for subsequent backtracking and analysis. As a result, the storage capacity requirements for SSDs require large capacity storage.
2. Industrial grade 25" SATA SSD.
In order to meet these challenges, the Chemclin team has carried out strict controls in the design, manufacturing, and testing of SSDs to ensure that they can operate stably and safely in metro applications. This chapter mainly recommends industrial grade 25" SATA SSD.
Industrial Grade 2With its high reliability, the 5" SATA SSD can be applied to urban rail transit and subway projects. This series of SSDs uses Standard 25" SATA III specification, support SATA III protocol, equipped with ETLC, MLC, PSLC flash memory particles, configuration optional 128GB, 256GB, 512GB, 1TB, 2TB and other capacities, can work stably in the environment of room temperature (0 +70), sub-wide temperature (-20 +70), wide temperature (-40 +85), passed CE, FCC, ROHS certification standards, mainly has the following characteristics:
01. High reliability.
Industrial Grade 2The 5" SATA SSD adopts a highly reliable design, using dynamic and static balanced erasure algorithms, bad block management algorithms, error checking and error correction and other functions, which can adapt to a variety of harsh industrial control environments and ensure stable performance under various harsh conditions.
02. It can reach a wide range of temperatures.
The subway may encounter harsh environments such as high temperature and low temperature during driving, industrial grade 2The 5" SATA SSD can maintain stable performance in a wide temperature range (-40 85), which provides a strong guarantee for the operation of the subway in various environments.
03. Full power-off protection.
Industrial Grade 2The 5" SATA SSD has a hardware power-down protection (PLP) function, which can prevent damage to the SSD due to sudden power failure, mainly relying on the circuit design of the hardware tantalum capacitor redundant array, which significantly reduces the probability of data loss, firmware damage and SSD failure in the event of abnormal power failure.
This series of SSDs can minimize the loss of cached data inside and outside the controller through the full disk power-down protection technology, and maximize the survival rate of the SSD in the event of abnormal power-down. In the event of a sudden power outage, these SSDs are designed to protect your data from loss.
04. External cache design.
Industrial Grade 2The 5" SATA SSD is designed with an external cache to improve multitasking capabilities by providing faster data read and write speeds to reduce response times and improve the overall efficiency of the system.
05. Overload protection.
Subway equipment can malfunction due to overload. Industrial Grade 2The 5" SATA SSD Overload Protection detects the operating state of the SSD and automatically adjusts the workload of the SSD to prevent it from failing due to overload.
3. Project cases.
Taking the application of a company in Guangzhou as an example, this company is a national high-tech enterprise specializing in consulting, research and development, production, sales and service of intelligent equipment and information management for safety monitoring in the urban rail transit industry, and it is also a national key "little giant" enterprise specializing in specialization, refinement, and innovation. This customer attaches great importance to scientific and technological innovation, has mastered the core technology in the field of rail transit safety monitoring, and has developed and produced a series of products that have covered more than 40 cities at home and abroad, and has a very high market share in the field of urban rail transit safety monitoring.
The company's requirements for SSDs are to store content** images, long life, shock resistance, and need to have power-off protection to ensure high stability of storage. After a number of comparative tests, the Jupiter SWE 525EN series was finally selected, with a storage capacity of 1TB and 2TB SSDs. This series of industrial grade 2The 5" SATA SSD was applied to the subway project and worked very well, successfully solving this customer's storage problem.
With the rapid development and digital transformation of urban rail transit, industrial grade 2The 5" SATA SSD has a bright future in metro projects. There may be special storage requirements for metro systems in different cities. We can provide customized SSD solutions to meet the specific needs of our customers. At the same time, as technology advances, SSDs will become more scalable, making it easy to cope with the growth of data volumes. In the future, we will continue to provide strong support for the highly reliable storage of the metro system through continuous technological innovation and product upgrades, and help the sustainable development of urban transportation.