Low speed control device based on double signals

A control device and signal control technology, applied in the directions of transportation and packaging, railway car body parts, railway vehicle shape measuring instruments, etc. Achieve the effect of improving accuracy and efficiency and ensuring accuracy

Active Publication Date: 2013-11-27
HARBIN VEIC TECH
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Problems solved by technology

[0003] The purpose of the present invention is to overcome the fact that the existing railway vehicle axle temperature detection system uses a single magnetic steel, which cannot detect high-speed vehicles and vehicles with a speed of zero kilometers or extremely low speed at the same time, which affects the recording of railway vehicles. The problem of axle loss

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  • Low speed control device based on double signals
  • Low speed control device based on double signals
  • Low speed control device based on double signals

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specific Embodiment approach 1

[0027] Specific embodiment one: combination figure 1 To describe this embodiment, this embodiment consists of a magnetic steel input signal 1, a signal control 2, a power comparison circuit 3, a first amplifying and filtering circuit 4, a hysteresis comparison circuit 5, a PRS input signal 6, a second amplifying and filtering circuit 7, and a chip CD4053 analog switch 8, precision rectifier circuit 9, differential amplifier circuit 10, amplifier circuit 11, threshold comparison circuit 12, shaping circuit 13; the output terminal of the magnetic steel input signal 1 is connected to the first input terminal of the signal control 2; power comparison The output terminal of the circuit 3 is connected to the second input terminal of the signal control 2; the first output terminal of the signal control 2 is connected to the input terminal of the first amplifying and filtering circuit 4; the output terminals of the first amplifying and filtering circuit 4 are respectively connected to th...

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Abstract

A low-speed control device based on double signals relates to the technical field of axle temperature detection system of railway vehicles and aims at solving the problems that an existing axle temperature detection system of railway vehicles has a single composition, can only determine wheels with a speed of more than 5 kilometers per hour and can not detect wheels with a vehicle speed lower than 5 kilometers per hour. A magnetic steel input signal is connected with a chip CD 4053 through a signal control unit, a first amplifying and filtering circuit, a precision rectifying circuit, a differential amplifying circuit, an amplifying circuit, a threshold comparator circuit, a shaping circuit and a hysteresis comparator circuit; a PRS (Public Regulated Service) input signal is connected with the chip CD 4053 through a second amplify and filtering circuit. The low-speed control device based on the double signals solves the problems of single magnetic steel selection, incapability of detecting vehicles of high speeds and vehicles with a zero-kilometer vehicle speed or with an extreme low speed simultaneously, and axle loss and vehicle loss of the existing axle temperature detection system of the railway vehicles.

Description

Technical field [0001] The invention relates to the technical field of a railway vehicle axle temperature detection system. Background technique [0002] At present, the existing railway vehicle axle temperature detection system is relatively simple in composition, which is composed of magnetic steel, integral amplifier circuit and other parts. Since the magnetic steel is made based on the principle of electromagnetic induction, it can only be judged that the vehicle speed is greater than 5 kilometers / hour. The wheels of the vehicle cannot be detected for speeds lower than 5 km / h. Summary of the invention [0003] The purpose of the present invention is to overcome the failure of detecting high-speed vehicles and vehicles with a speed of zero kilometers or extremely low speeds due to the existing railway vehicle axle temperature detection system using a single magnetic steel, which affects the axle recording of railway vehicles and causes loss The problem of axle loss. [0004] Th...

Claims

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Application Information

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IPC IPC(8): B61K9/06
Inventor 赖冰凌张瑜峰柳君玉唐戍何鹏李乌江
Owner HARBIN VEIC TECH
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