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  • Train of Freight Failures Detection System (TFDS) is an important part of railway vehicle safety monitoring system. This system makes use of computer, automatic control, high speed image collection, network and other technologies, and it uses industrial high-speed camera as the image collection unit to collect the image of the running train in high speed. It used manpower detection or image automatic detection technology to find the fault to provide railway truck fault track edge dynamic detection with fault image information collection, storage, transmission and pre-warning service by network monitoring, centralized alarming, information sharing and man-machine joint control, which improves the quality of train examination, the level of operation efficiency and vehicle safety protection and strengthen the collection and management of fault basic information in track application. This system is composed by the three parts of track edge detection equipment, track edge computer room equipment and train examination center equipment.
  • Infrared linear laser light source, first initiation in the whole road, could obtain clear images under strong sunlight, and gained invention patent. Combine line-scan digital camera with infrared linear light source to achieve sunshine interference resistance, photograph continues non-stitching images, same brightness of distance, vicinity, day and night, which facilitates the automatic identification of fault.
  1. Linear scanning technology is more beneficial to image automatic identification, the photos photographed each direction seamlessly, which facilitates to determine the position of the fault, it has strong sunshine interference resistance, it only images the moving object, the static objects will not be photographed, so that there's no background interference.
  2. Framing in narrow slit and sand, dust, rain and snow resistance are good.
  3. The compensation light is invisible light, it will not affect train travelling.
  4. Integration and modular design, it is easy to install and maintain.






Focus on railway safety for 15 years, based on the railway, serving the railway.

  • The Harbin Kejia General Mechanical & Electrical Co., Ltd. was established in 2003, and it is a main supplier of the safety test, overhaul and Train-Control equipment. Its products cover trains, electric service, maintenance, engineering, etc. Spreading all over the national railways. Wherein the leading position of the industry is dominated by the detection device of the Train of Freight Failures Detection System (TFDS), equipment of the detection stations of the Train of Passenger Vehicle Failures Detection System (TVDS), equipment of the detection stations of the Train of EMU Failures Detection System (TEDS), JT-CA2000-kj Generic Cab Signal System, image processing and pattern recognition software.
  • The Company is located in Economic Technological Development Zone, Harbin, with an area of 40,000m2. Herein, there's a "five-star" modernization R&D office building with an area of more than 5,000m2, this building is equipped with central air conditioner, fresh air system (it can filter PM2.5), the modern equipment of water purification system; There are athletic facilities of soccer, basketball, badminton court and fitness equipment, etc.; The production and test base is with an area of more than 10,000m2, it is equipped with automatic production and processing equipment, perfect experimental environment, EMC laboratories and special railway test line.
  • During the development, the Company has gained multiple production certifications, such as IRIS (International Railway Industry Standard), CRCC (China Railway Test & Certification Center), CMMI (Capability Maturity Model Integration), herein, JT-CZ2000-kj Generic Cab Signal System has passed the safety evaluation of third party, and its safety integrity has reached SIL4. The Company has special network channels for the railway, which can connect to each detection station to conduct remote maintenance, achieve the functions of equipment status monitoring, software upgrade, image quality analysis, faults processing and industrial personal computer, server, camera reboot, etc. We have after-sale service stations all over the country, our people can arrive the sites quickly.
  • The Company has a team which is full of youthful spirit, with excellent skill and dedicated. The Company has about 300 staffs, 120 R&D and design personnel. As a "Railway safety equipment production enterprise", "Double software certification enterprise" and "High-tech enterprise", it has achieved substantial achievements in the professional fields of software, network, mechatronics, electric automation, automatic control, image processing and pattern recognition.

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