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The Hong Kong Railway Management Department uses active RFID tags and readers to track the maintenance parts of passenger and freight cars, which greatly improves the accuracy and efficiency of maintenance. The tags and readers used in the solution are from Hong Kong RFID Ltd. The program uses RFID technology to automatically obtain the location of the parts and whether they are repaired, so as to better maintain the operation and management of the train and ensure the normal operation of all parts.
In order to ensure the safety and effectiveness of vehicles, the railway operations department needs to track some parts of passenger and freight vehicles. If a component needs to be repaired or is near the maintenance period, it needs to be shipped to the maintenance center for processing. The centralized processing of a large number of components poses a huge challenge to the maintenance center.
Currently, railway operators have installed Garrison HKRAT-RT02 active 2.4 GHz tags on 1,000 rail components.
The repair process of components needs to be converted between different maintenance departments, and a large number of components need to be processed in an orderly manner. The only way to ensure orderly processing is to strengthen the effective tracking of the component repair process, such as the time and location of component repair, and the time of reuse.
Hong Kong RFID company began to provide RFID technical support for railway management departments in 2012, including tags, fixed, handheld RFID readers and asset tracking data software. The data software collects relevant data from the RFID readers installed in the three maintenance departments, analyzes the collected data information, and finally displays information such as location and time during the maintenance process.
The tag used in the tracking system is the Garrison HKRAT-RT02 active 2.4 GHz RFID tag provided by Hong Kong RFID company. Approximately 1,000 components are equipped with RFID waterproof tags, including train temperature regulators, LCD displays, amplifiers, compressor components, and brake control units. The maintenance center installs approximately 6-7 fixed Empress Wi-Fi RFID readers and 20 interrogators. The read-write channel is installed at the entrance and exit of the maintenance center.
When the labeling component passes through the read-write channel, the reader reads the ID code of the tag according to a dedicated air interface protocol, and then sends the code to the asset tracking data software installed on the back-end server through a wired connection. The ID code is associated with the location information of the component, and the location information of the component repair is presented to the operator through a database search. The reading of label information at the entrance and exit of the maintenance center can realize the recording of the maintenance process of the labeling components.
The maintenance department is also equipped with a handheld RFID reader KHRAR-5080EM. Workers use the handheld device to enter maintenance process data, such as maintenance specific processes, the status of components, etc. After finishing a day’s work, the staff uniformly upload the data to the company’s back-end data system. In some cases, the information is also forwarded to the background data system through the Wi-Fi connection. The staff can search for a specific part or check the inventory through the handheld reader.
Since 2012, the use of RFID solutions has not only greatly reduced the labor required for inventory checking, but also the location information of parts has become more comprehensive and accurate. Through the RFID tracking system, the company’s managers can see the location of the components, the time of entering and leaving the maintenance center, and whether the maintenance is proceeding as planned. This improves the efficiency of railway maintenance and avoids delays in maintenance. .
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