CN217374517U

CN217374517U - Intelligent control system for locomotive whistling

Info

Publication number: CN217374517U
Application number: CN202221611797.5U
Authority: CN
Inventors: 黄江华; 程志波; 罗涛; 余后熊; 熊裕卿
Original assignee: Baowu Group Echeng Iron and Steel Co Ltd
Current assignee: Baowu Group Echeng Iron and Steel Co Ltd
Priority date: 2022-06-27
Filing date: 2022-06-27
Publication date: 2022-09-06
Anticipated expiration: 2032-06-27

Abstract

The utility model discloses a locomotive intelligent control system that whistles, including the master control platform, the master control platform has the air whistle automatically controlled valve through cable junction, and the air whistle automatically controlled valve is used for controlling the air whistle to open or close, still includes air whistle and time control change over switch, and the air whistle is furnished with the air whistle control circuit, the time control change over switch sets up between air whistle automatically controlled valve and master control platform, and the time control change over switch is connected with the air whistle control circuit simultaneously, and the time control change over switch is used for according to setting for time automatic switch-over use air whistle or air whistle; the utility model discloses effective control locomotive is whistled night and is disturbed citizen, noise pollution abatement.

Description

Intelligent control system for locomotive whistling

Technical Field

The utility model relates to a railway locomotive technical field specifically is locomotive intelligent control system that whistles.

Background

The railway locomotive is an important logistics transportation device, and a horn (commonly called a whistle) control mode generally controls the power on and off of an electric control valve through a button, and a compressed air pipeline entering the horn is opened or cut off to achieve the aim of whistling. The intelligent alarm system has two main functions, namely safety warning during operation and information communication interaction with field operating personnel during operation. As the operator can reach more than 800m far away from the locomotive driver, the safety warning distance in front of the access road needs to be reserved, and the outside noise is large in daytime, the volume is generally required to be 70-80dB to ensure the operation safety.

Baoku group's hubei city steel plant is a large-scale iron and steel enterprise, and the main factory is in the urban area, and the nearest resident living area of railway transportation line distance is less than 100 meters, and the locomotive that comes and goes above-mentioned regional operation every day has more than 50 times, and the resident can also accept in the daytime that the locomotive whistles, then seriously influences the resident and have a rest night, consequently often can receive complaining and environmental protection department supervise and examine, influences enterprise's logistics production transportation. If the whistle is not generated, firstly, more railway crossings are generated in the factory area, pedestrians or vehicles often cross the crossings, the traffic safety is difficult to guarantee, and secondly, the communication interaction with field operation personnel during operation is limited, so that the safety risk is increased. In particular, in the case of propulsion work, it is difficult to achieve both of them because the instruction information issued by the lookout person ahead needs to be confirmed by a whistle.

Disclosure of Invention

The utility model aims at providing a locomotive intelligent control system that whistles in order to solve the problem of above-mentioned locomotive noise that whistles.

The utility model has the following concrete scheme: locomotive intelligent control system that whistles, including the master control platform, there is the air whistle automatically controlled valve master control platform through cable junction, and the air whistle automatically controlled valve is used for controlling the air whistle and opens or close, still includes air whistle and time control change over switch, and the air whistle is furnished with the air whistle control circuit, the time control change over switch sets up between air whistle automatically controlled valve and master control platform, and the time control change over switch is connected with the air whistle control circuit simultaneously, and the time control change over switch is used for using air whistle or air whistle according to setting for time automatic switch-over.

Be equipped with automatically regulated volume circuit among the electric whistle control circuit, automatically regulated volume circuit includes noise sensor, pnp triode and operational amplifier, and noise sensor is used for detecting the volume of electric whistle output and converts into electric signal output voltage and gives the pnp triode, and the pnp triode is used for controlling operational amplifier's three-pin voltage to adjust the output volume of electric whistle.

The automatic volume adjusting circuit further comprises an electrolytic capacitor, and the electrolytic capacitor is used for stabilizing the output voltage of the noise sensor.

Automatic adjust volume circuit still includes adjustable resistance R1, adjustable resistance R2, and adjustable resistance R1 is used for restricting the biggest volume value of electric whistle output, and adjustable resistance R2 is used for restricting the minimum volume value of electric whistle output.

The utility model discloses following beneficial effect has: the intelligent control system effectively controls the locomotive to whistle at night to disturb residents, reduces noise pollution, reduces environmental protection complaints and supervision events to zero, meets the basic whistling warning requirement of locomotive safety operation, improves the operation environment of field personnel to protect hearing, and accords with the development requirements of urban steel plants and environmental protection with harmonious life of surrounding residents.

Drawings

Fig. 1 is a schematic diagram of the system of the present invention.

Detailed Description

Referring to fig. 1, this embodiment provides a locomotive intelligent control system that whistles, utilizes the original whistle control circuit of locomotive to add the electric whistle of being convenient for control, carries out the flute, the intelligent conversion of electric whistle is reformed transform, inserts a time control change-over switch KT promptly in original control circuit, KT's the original whistle control circuit of 1 bit terminating machine car, the electric whistle control circuit that 2 bit terminating machine car increased. The state of the electric whistle is switched to 19 hours at night, and the state of the wind whistle is switched to 7 hours in the morning, and the electric whistle can be adjusted according to the actual condition.

Meanwhile, the existing electric whistle control circuit is modified, and automatic adjustment of the sound of the electric whistle is realized. A noise sensor ZY, a pnp triode Q1, a10 UF electrolytic capacitor C6, an adjustable resistor R1 and an adjustable resistor R2 are added;

the noise sensor ZY functions as follows: the external noise input is sensed instantly, and the voltage Uz is generated and output at the end V0.

The pnp transistor Q1 functions as follows: the Q1 is controlled by the V0 end of the noise sensor, works in three states of saturation, amplification and cut-off, and the three states of Q1 are utilized to control the 3-pin voltage Ug = Ue of the operational amplifier LM386D, so that the volume of the electric whistle can be realized; when LM386D adopts 12 volts for power supply, change 3 foot voltage Ug =0~10 volts and change, the electric whistle volume just can change from 0dB to 100dB, and every 1 volt of 3 feet rising, the electric whistle volume just increases 10 dB. This linear output is matched to the voltage Uz at the noise sensor output pin V0.

The electrolytic capacitor C6 functions as follows: because the noise sensor Uz is the instant output, every instantaneous output voltage is different, can cause every time to whistle the volume size inconsistent, according to the unable sudden change's of capacitance voltage principle, C6 makes noise sensor output pin V0 voltage Uz keep the average value in a period of time to guarantee that every time whistle sound is unanimous from beginning to end, and does not exceed 5 seconds.

The adjustable resistors R1 and R2 have the following functions:

assuming that the sensor detects that the external noise is ZdB, the output pin (V0) Uz = Z/10V, and the external noise is input to the base b of Q1, when Q1 is in an amplification state, the triode acts as an adjustable resistor, the collector c generates UC = Z/10V output, the emitter e voltage Ue of Q1, the 3-pin voltage Ue of LM386D = Z/10+ 1.7V, and the output volume H = (Z/10+1.7) × 10dB of the electric whistle. Wherein the 1.7 volt is the measured tube voltage drop of the A1015 triode in the amplifying state.

When the volume H of the electric whistle is less than 50dB, operators at the farthest front cannot hear the whistle of a locomotive driver, and the safe communication of the operation is influenced. When H >80dB, night rest is affected for nearby residents. Therefore, R2 is needed to limit the minimum volume Hmin to be more than or equal to 50dB, and R1 is needed to limit the maximum volume Hmax to be less than or equal to 80 dB.

R2 is used for limiting the minimum volume, adjusts resistance R2=5k omega, when detecting external noise Z <50dB, the emitter e voltage clamp of Q1 is 5v, can make the minimum volume Hmin of electric whistle =50dB, guarantee at silent night, locomotive driver can also pass the communication information through the electric whistle with the staff in front.

R1 is used to limit the maximum volume, and the adjusting resistor R1=8k Ω, R1 can limit the maximum volume Hmax =80dB of the siren when the sensor detects the external noise Z >63 dB.

Claims

1. Locomotive intelligent control system that whistles, including the master control platform, the master control platform has the air whistle automatically controlled valve through cable junction, and the air whistle automatically controlled valve is used for controlling air whistle and opens or close characterized by: still include electric whistle and time control change over switch, the electric whistle is furnished with electric whistle control circuit, time control change over switch sets up between electric control valve of the wind whistle and master control platform, and time control change over switch is connected with electric whistle control circuit simultaneously, and time control change over switch is used for using wind whistle or electric whistle according to setting for time automatic switch-over.

2. The locomotive blast whistle intelligent control system of claim 1, wherein: be equipped with automatically regulated volume circuit among the electric whistle control circuit, automatically regulated volume circuit includes noise sensor, pnp triode and operational amplifier, and noise sensor is used for detecting the volume of electric whistle output and converts the signal of telecommunication output voltage into for the pnp triode, and the pnp triode is used for controlling operational amplifier's three-pin voltage to adjust the output volume of electric whistle.

3. The locomotive blast whistle intelligent control system as set forth in claim 2, wherein: the automatic volume adjusting circuit further comprises an electrolytic capacitor, and the electrolytic capacitor is used for stabilizing the output voltage of the noise sensor.

4. The locomotive blast whistle intelligent control system as set forth in claim 2, wherein: the automatic volume adjusting circuit further comprises an adjustable resistor R1 and an adjustable resistor R2, wherein the adjustable resistor R1 is used for limiting the maximum volume value of the electric whistle output, and the adjustable resistor R2 is used for limiting the minimum volume value of the electric whistle output.