Qingmai Qidi Rail Technology (Tianjin) Co., Ltd

A control system integrator specializing in rail transit

Qingmai Qidi is a national high-tech enterprise. The company headquarters, Shandong Qingmai Lianying Technology Co., Ltd., was established in 2019 in Licang District, Qingdao, Shandong. It is engaged in railway equipment trade related work at the Amazon Technology Building in Licang District.

In 2021, Qingmai Qidi Company established a production base in the Sino-Singapore Tianjin Eco-City of Tianjin Binhai New Area, purchased a standalone R&D and production building in Fengchuang Industrial Park, and established Qingmai Qidi Rail Technology (Tianjin) Co., Ltd. It is a high-tech enterprise specializing in the development, integration, sales, and service of railway signal technology, engaged in the production and research and development of various integrated systems in the field of rail transit signal.

Improved 25Hz Phase-Sensitive Track Circuit

By substituting the traditional binary two-position relay with the 25Hz track circuit board card, the indoor equipment of the traditional 25Hz phase-sensitive track circuit can be significantly reduced, saving cabinet occupancy area and greatly cutting costs

QM-IFully electronic computer interlocking system

The QM-I fully electronic computer interlocking system complies with the "Technical Conditions for Computer Interlocking " issued by the Ministry of Railways and has obtained the software copyright certificate for the interlocking system As a key control equipment for railway signals, this system adopts the latest technology and uses fully electronic execution units (modules) to directly drive and collect signals, switches, track circuits, various connecting circuits, etc

FZQ-CTC Decentralized and Autonomous CTC System

The FZQ-CTC decentralized autonomous dispatch centralized system is an important technical equipment for railway modernization, an important part of the comprehensive information construction of modern railways, and a new form of transportation organization for modern railways

QM-TDCS Railway Traffic Dispatch and Command System

The Railway Traffic Dispatch Command System (TDCS) adopts digital, networked, and information-based technologies Realize real-time, centralized, and transparent command of train operations at the stations under its jurisdiction, adjust transportation plans through automated means, and issue train schedules and dispatch commands through computer networks

CSM-QM Centralized signal monitoring system

This system consists of a central subsystem, a station subsystem, and a network transmission subsystem, with key equipment adopting a dual machine hot standby system

QM-JZ Axle Counter System

The QM-JZ axle counting system has undergone SIL4 independent safety assessment and complies with the fault safety principle; At the same time, the dual sensor layout of each axle counting point adopts a more flexible four out of three clearing mode, which improves the safety and availability of the system

QM-DK Crossing safety protection system

The QM-DK crossing safety protection system is a safety protection system suitable for railway level crossings The system automatically implements crossing warning by detecting locomotives or trains, manually or automatically closes the crossing, and opens the crossing after the train passes, thereby achieving safety protection and control of the crossing

Intelligent power supply screen

The intelligent power supply screen is the power supply system for microcomputer interlocking signal equipment When the voltage of the external power grid varies within the range of AC220V (+15%~-20%), stabilize the load voltage within the range of 380V ± 3%

Monitoring system for track breakage of switch rails

The system can monitor the online, real-time, and high safety and health status of switch rails and point rails Based on the propagation of sound waves in steel rails, when encountering defects or complete breakage of the rail, the energy of the sound waves will experience significant attenuation and reflection By detecting the characteristic changes of the sound wave signal at the receiving end, the state of the rail can be determined

Interval rail breakage monitoring system

System Overview: The interval rail breakage monitoring system is developed based on the Provisional Technical Conditions for Rail breakage Monitoring Equipment (Tie Gong Dian [2020] No 156) issued by China Railway Group

Integrated monitoring and intelligent diagnosis system for turnouts

As an important basic equipment on the trackside, the turnout conversion system plays a crucial role in ensuring the safe operation of trains and improving transportation efficiency The switch conversion system has always been a key maintenance and repair equipment for the electrical department due to its complex and diverse application environment and high failure rate It ranks first in the on-site maintenance workload for many years

Switch snow melting control system

Setting up snow melting devices is an important measure for preventing and controlling ice and snow disasters in railway turnouts It can effectively remove snow or ice within the range of the turnout equipment, and solve the problem of unreliable sealing of turnouts due to snow accumulation and other reasons

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About Qingmai

A control system integrator specializing in rail transit

Products and Solutions

Improved 25Hz Phase-Sensitive Track Circuit

QM-IFully electronic computer interlocking system

FZQ-CTC Decentralized and Autonomous CTC System

QM-TDCS Railway Traffic Dispatch and Command System

CSM-QM Centralized signal monitoring system

QM-JZ Axle Counter System

QM-DK Crossing safety protection system

Intelligent power supply screen

Monitoring system for track breakage of switch rails

Interval rail breakage monitoring system

Integrated monitoring and intelligent diagnosis system for turnouts

Switch snow melting control system

News

In late November 2025, the newly built computer interlocking system...

In late September 2025, the interface project between Guangxi Pingguo Aluminum's interlocking system and the CTC system was officially launched!

In mid-September 2025, the second-phase railway transportation information interlocking system upgrade project of Laoting Steel was officially launched and put into operation!

In early September 2025, the computer interlocking system at Laicun Station of Zaozhuang Mining Bureau in Shandong Province was officially put into operation！

In late May 2025, the signal cable overhaul project at the factory station of China Petrochemical Jinan Branch was put into use after acceptance!

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