CN111953433A - Railway interlocking signal management system - Google Patents
Railway interlocking signal management system Download PDFInfo
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- CN111953433A CN111953433A CN202010897126.9A CN202010897126A CN111953433A CN 111953433 A CN111953433 A CN 111953433A CN 202010897126 A CN202010897126 A CN 202010897126A CN 111953433 A CN111953433 A CN 111953433A
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- 239000003990 capacitor Substances 0.000 claims abstract description 68
- 230000010355 oscillation Effects 0.000 claims abstract description 22
- 238000001914 filtration Methods 0.000 claims abstract description 15
- 230000008054 signal transmission Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 239000000872 buffer Substances 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/10—Monitoring; Testing of transmitters
- H04B17/11—Monitoring; Testing of transmitters for calibration
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L19/00—Arrangements for interlocking between points and signals by means of a single interlocking device, e.g. central control
- B61L19/06—Interlocking devices having electrical operation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/0082—Monitoring; Testing using service channels; using auxiliary channels
- H04B17/0085—Monitoring; Testing using service channels; using auxiliary channels using test signal generators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L19/00—Arrangements for interlocking between points and signals by means of a single interlocking device, e.g. central control
- B61L19/06—Interlocking devices having electrical operation
- B61L2019/065—Interlocking devices having electrical operation with electronic means
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mechanical Engineering (AREA)
- Train Traffic Observation, Control, And Security (AREA)
- Amplifiers (AREA)
Abstract
The invention discloses a railway interlocking signal management system, which comprises a filtering receiving module and a push-pull oscillation module, wherein the filtering receiving module receives an analog signal output by a railway interlocking signal transmitting module, the filtering receiving module is connected with the push-pull oscillation module, the push-pull oscillation module utilizes the switching property of a triode Q5 to charge an LC circuit consisting of a capacitor C7 and an inductor L2, then the LC circuit oscillates and amplifies the signal frequency, two paths of regulation are designed, one path of regulation is conducted by utilizing the high level of a triode Q3, a signal is fed back to the inverting input end of an operational amplifier AR2, the operational amplifier AR2 compares and adjusts the output signal of a denoising circuit and then directly feeds back to the inverting output end of an operational amplifier AR4, the output signal potential of the operational amplifier AR4 is reduced, similarly, two paths of triodes Q4 are used to feed back low level signals, the low level signals follow the signals by the operational amplifier AR3 and then are, and the signal amplitude is stabilized, so that the frequency and the amplitude of the signal transmission are ensured to meet the standard of a channel.
Description
Technical Field
The invention relates to the technical field of management systems, in particular to a railway interlocking signal management system.
Background
Interlocking refers to the mutual restriction relationship established among signal machines, turnouts and access roads by technical means in order to ensure the safety of railway station driving and shunting operation, plays a great role in railway operation, and ensures the switching of railway operation and track change.
Disclosure of Invention
In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a railway interlocking signal management system, which can calibrate an analog signal output by a railway interlocking signal transmitting module.
The technical scheme for solving the problem is that the railway interlocking signal management system comprises a filtering receiving module and a push-pull oscillation module, wherein the filtering receiving module receives an analog signal output by a railway interlocking signal transmitting module, the filtering receiving module is connected with the push-pull oscillation module, and an output signal of the push-pull oscillation module is transmitted into a railway interlocking signal management system terminal through a signal transmitter E1;
the push-pull oscillation module comprises a transistor Q1, wherein the base of a transistor Q1 is connected with one end of a resistor R3 and the anode of a diode D2, the collector of a transistor Q1 is connected with the collector of a transistor Q3, the other end of a resistor R3 and a power supply +5V, the emitter of the transistor Q3 is connected with the emitter of the transistor Q3, the emitter of the transistor Q3 and one end of a capacitor C3 and one end of a resistor R3, the base of the transistor Q3 is connected with one end of the resistor R3 and the cathode of the diode D3, the collector of the transistor Q3 and the other end of the resistor R3 are grounded, the other end of the capacitor C3 is connected with one end of the resistor R3 and the non-phase input end of the operational amplifier AR3, the other end of the resistor R3 is grounded, one end of the inverting input end of the operational amplifier AR3 and one end of the emitter of the transistor Q3 and the emitter of the transistor R3 are connected with the power supply 3.3V and one end of the resistor R3 are connected with the, the other end of the resistor R is connected with the inverting input end of the amplifier AR, the non-inverting input end of the amplifier AR is connected with one end of the resistor R, the other end of the resistor R is connected with one end of the resistor R, one end of the capacitor C and the collector of the triode Q, the other end of the capacitor C is grounded, the other end of the capacitor C is connected with the anode of the diode D, the cathode of the diode D is connected with the resistor R, the other end of the resistor R and the collector of the triode Q and one end of the capacitor C, the other end of the capacitor C is connected with one end of the resistor R, the other end of the resistor R is connected with the base of the triode Q and one end of the capacitor C, the other end of the resistor C and the resistor R, the other ends of the resistor R and the capacitor C are grounded, the emitter of the triode Q is connected with the other end of the capacitor C and one end of the capacitor C, the, the other end of the resistor R17 is connected with the anode of the diode D5, the cathode of the diode D5 is connected with the non-inverting input end of the operational amplifier AR3, the inverting input end of the operational amplifier AR3 is connected with the output end of the operational amplifier AR3 and the anode of the diode D6, the cathode of the diode D6 is connected with the output end of the operational amplifier AR4, one end of the resistor R16, the output end of the operational amplifier AR2 and the inverting input end of the operational amplifier AR4, and the other end of the resistor R16 is connected with the signal transmitter E1.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the following advantages;
1. a push-pull circuit consisting of a triode Q1, a triode Q2, a diode D2 and a diode D3 is used for improving the load capacity of the circuit and the switching speed, meanwhile, the diode D2 and the diode D3 are used for buffering the conduction voltages of the triode Q1 and the triode Q2, the cross-over distortion phenomenon of the traditional push-pull circuit is overcome, then an operational amplifier AR1 and a capacitor C2 are used for forming a denoising circuit, and finally the capacitor C3, the capacitor C4, a resistor R11 and a resistor R12 are used for forming the denoising circuit for further denoising, so that the effect of reducing the signal-to-noise ratio is achieved;
2. on the basis of noise removal, an oscillation circuit consisting of a triode Q5 and a capacitor C6-a capacitor C8 can be used for amplifying signal frequency, an LC circuit consisting of a capacitor C7 and an inductor L2 is charged by utilizing the switching property of the triode Q5, then the LC circuit oscillates and amplifies the signal frequency, on the basis of frequency adjustment, the stability of signal amplitude needs to be ensured, two paths of adjustment are designed, one path of adjustment is conducted by utilizing a triode Q3 high level, a feedback signal is fed into an inverse input end of an operational amplifier AR2, the operational amplifier AR2 compares and adjusts the output signal of a denoising circuit and then directly feeds back to an inverse output end of the operational amplifier AR4, the output signal potential of the operational amplifier AR4 is reduced, similarly, a low level signal fed back by utilizing a two path of triode Q4 is directly compensated to the output end of the operational amplifier AR4 after the signal is followed by the operational amplifier AR3, the signal amplitude is stabilized on the basis of, The amplitude conforms to the standard of the channel.
Drawings
Fig. 1 is a block schematic diagram of a railway interlock signal management system of the present invention.
Detailed Description
The foregoing and other technical and scientific aspects, features and utilities of the present invention will be apparent from the following detailed description of the embodiments, which is to be read in connection with the accompanying drawings of fig. 1. The structural contents mentioned in the following embodiments are all referred to the attached drawings of the specification.
A railway interlocking signal management system comprises a filtering receiving module and a push-pull oscillation module, wherein the filtering receiving module receives an analog signal output by a railway interlocking signal transmitting module, the filtering receiving module is connected with the push-pull oscillation module, and an output signal of the push-pull oscillation module is sent to a railway interlocking signal management system terminal through a signal transmitter E1;
in order to prevent the information interaction of the railway interlocking signals from generating Doppler effect and signal offset phenomenon, and ensure that the frequency and amplitude during signal transmission meet the standard of a channel, the filter receiving module receives the analog signals output by the railway interlocking signal transmitting module, namely the circuit is arranged at the output end of the railway interlocking signal transmitting module, adjusts the output analog signals and converts the analog signals into standard analog signals meeting the channel, an LC series circuit is formed by an inductor L1, a capacitor C1, a resistor R1 and a resistor R2 to filter harmonic waves in the signals, then a push-pull oscillating module forms a push-pull circuit by a triode Q1, a triode Q2, a diode D2 and a diode D3 to improve the load capacity of the circuit and improve the switching speed, meanwhile, the conducting voltage of the triode Q1 and the triode Q2 is buffered by the diode D2, the diode D3 to overcome the cross-over distortion phenomenon of the traditional push-pull circuit, the voltage +5V is utilized to flow through a diode D2 and a conducting voltage of a diode D3 to compensate the base voltage of a triode Q1 and a base voltage of a triode Q2, so that the cross-over distortion of the traditional push-pull circuit is overcome, the original function of the push-pull circuit is kept, then an operational amplifier AR1 and a capacitor C2 are utilized to form a denoising circuit, the capacitor C2 is utilized as a coupling capacitor to reduce the noise ratio of the non-inverting input end of the operational amplifier AR1, then the operational amplifier AR1 buffers a comparison signal, the inverting input end of the operational amplifier AR1 is connected with a power supply +3.3V, the voltage is divided by a resistor R7 to realize the function of adjusting the amplitude of the output signal of the operational amplifier AR1, finally a denoising circuit is formed by a capacitor C3, a capacitor C4, a resistor R11 and a resistor R12 to further denoise, the capacitor C3 is a decoupling capacitor, a capacitor C4 is a bypass capacitor, so that the signal noise ratio is reduced, the frequency of the oscillation circuit is, an LC circuit composed of a capacitor C7 and an inductor L2 is charged by utilizing the switching property of a triode Q5, then the LC circuit oscillates and amplifies signal frequency, meanwhile, in order to prevent new harmonic waves generated in the oscillation process, the capacitor C8 is used for filtering signal harmonic waves, the signal harmonic waves are finally input into the in-phase input end of an operational amplifier AR4, on the basis of frequency adjustment, the stability of signal amplitude needs to be ensured, two-way adjustment is designed, one way is conducted by utilizing the high level of a triode Q3, a signal is fed back into the anti-phase input end of an operational amplifier AR2, the operational amplifier AR2 compares and adjusts the output signal of a de-noising circuit and then directly feeds back to the anti-phase output end of an operational amplifier AR4, the output signal potential of the operational amplifier AR4 is reduced, similarly, a low level signal fed back by utilizing the two-way triode Q4 is directly compensated to the output end of the operational amplifier AR4 after the signal is, The amplitude accords with the standard of a channel, and then is sent to a railway interlocking signal management system terminal through a signal transmitter E1;
the push-pull oscillation module has the specific structure that the base of a triode Q1 is connected with one end of a resistor R3 and the anode of a diode D2, the collector of a triode Q1 is connected with the collector of a triode Q3, the other end of a resistor R3 and a power supply +5V, the emitter of a triode Q1 is connected with the emitter of a triode Q2, the emitter of a triode Q4 and one end of a capacitor C2, one end of a resistor R2 are connected with the base of the triode Q2 and the cathode of the diode D2, the collector of the triode Q2 and the other end of the resistor R2 are grounded, the other end of the capacitor C2 is connected with one end of the resistor R2 and the non-inverting input end of the operational amplifier AR2, the other end of the resistor R2 is grounded, one end of the inverting input end of the operational amplifier AR2 and the base of the triode Q2, the other end of the resistor R2 is connected with a power supply 3.3V, and one end of the emitter of the transistor R2 is connected with the resistor R2, the other end of the resistor R is connected with the inverting input end of the amplifier AR, the non-inverting input end of the amplifier AR is connected with one end of the resistor R, the other end of the resistor R is connected with one end of the resistor R, one end of the capacitor C and the collector of the triode Q, the other end of the capacitor C is grounded, the other end of the capacitor C is connected with the anode of the diode D, the cathode of the diode D is connected with the resistor R, the other end of the resistor R and the collector of the triode Q and one end of the capacitor C, the other end of the capacitor C is connected with one end of the resistor R, the other end of the resistor R is connected with the base of the triode Q and one end of the capacitor C, the other end of the resistor C and the resistor R, the other ends of the resistor R and the capacitor C are grounded, the emitter of the triode Q is connected with the other end of the capacitor C and one end of the capacitor C, the, the other end of the resistor R17 is connected with the anode of a diode D5, the cathode of a diode D5 is connected with the non-inverting input end of the operational amplifier AR3, the inverting input end of the operational amplifier AR3 is connected with the output end of the operational amplifier AR3 and the anode of a diode D6, the cathode of a diode D6 is connected with the output end of the operational amplifier AR4, one end of a resistor R16, the output end of the operational amplifier AR2 and the inverting input end of the operational amplifier AR4, and the other end of the resistor R16 is connected with a signal transmitter E1; the filter receiving module comprises an inductor L1, one end of the inductor L1 is connected with one end of a resistor R1, a resistor R2 and a capacitor C1, the other end of the resistor R1 is connected with the negative electrode of a voltage regulator tube D1, the other end of the capacitor C1 and a signal output port of the railway interlocking signal transmitting module, the positive electrode of the voltage regulator tube D1 is grounded, and the other end of the inductor L1 is connected with the other end of the resistor R2 and a signal input port of the push-pull oscillation module.
When the invention is used specifically, in order to prevent the Doppler effect generated by the information interaction of the railway interlocking signal and the signal offset phenomenon, the frequency and amplitude of the signal transmission are required to be in accordance with the standard of the channel, therefore, the filter receiving module receives the analog signal output by the railway interlocking signal transmitting module, namely, the circuit is arranged at the output end of the railway interlocking signal transmitting module, adjusts the output analog signal and converts the analog signal into the standard analog signal in accordance with the channel, an LC series circuit is formed by an inductor L1, a capacitor C1, a resistor R1 and a resistor R2, the harmonic wave in the signal is filtered, then a push-pull oscillation module firstly uses a push-pull circuit formed by a triode Q1, a triode Q2, a diode D2 and a diode D3, thereby not only improving the load capacity of the circuit, but also improving the switching speed, and simultaneously, the diode D2 and the diode D3 are used for buffering the conduction voltage of, the method overcomes the cross-over distortion phenomenon of the traditional push-pull circuit, utilizes the conducting voltage of voltage +5V flowing through a diode D2 and a diode D3 to compensate the base voltage of a triode Q1 and a triode Q2, thereby overcoming the cross-over distortion of the traditional push-pull circuit, simultaneously keeps the original function of the push-pull circuit, then utilizes an operational amplifier AR1 and a capacitor C2 to form a denoising circuit, utilizes a capacitor C2 as a coupling capacitor to reduce the noise ratio of the non-inverting input end of the operational amplifier AR1, then utilizes an operational amplifier AR1 to buffer a comparison signal, connects a power supply +3.3V to the inverting input end of the operational amplifier AR1, divides the voltage by a resistor R7 to realize the function of adjusting the amplitude of the output signal of the operational amplifier AR1, finally utilizes a denoising circuit consisting of a capacitor C3, a capacitor C4, a resistor R11 and a resistor R12 to further denoise, utilizes a capacitor C3 as a decoupling capacitor, and utilizes a capacitor C4 as a bypass capacitor C4 to realize the function of reducing the noise ratio, only on the basis of The method comprises the steps of utilizing the switching property of a triode Q5 to charge an LC circuit formed by a capacitor C7 and an inductor L2, oscillating the LC circuit to amplify signal frequency, filtering signal harmonics by utilizing the capacitor C8 in order to prevent new harmonics from being generated in the oscillation process, inputting the filtered signal harmonics into the non-inverting input end of an operational amplifier AR4, designing two paths of adjustment on the basis of frequency adjustment, conducting one path of adjustment by utilizing the high level of the triode Q3, feeding back signals into the inverting input end of the operational amplifier AR2, comparing and adjusting the output signals of a denoising circuit by the operational amplifier AR2, feeding back the output signals of the denoising circuit directly to the inverting output end of the operational amplifier AR4, reducing the output signal potential of the operational amplifier AR4, and similarly, feeding back low level signals by utilizing the triode Q4 to follow the signals by the operational amplifier AR3, compensating the output ends of the operational amplifier AR4 directly, stabilizing the signal amplitude on the basis of amplifying the signal frequency, thereby, The amplitude meets the standard of the channel and then is transmitted to the railway interlocking signal management system terminal through a signal transmitter E1.
While the invention has been described in further detail with reference to specific embodiments thereof, it is not intended that the invention be limited to the specific embodiments thereof; for those skilled in the art to which the present invention pertains and related technologies, the extension, operation method and data replacement should fall within the protection scope of the present invention based on the technical solution of the present invention.
Claims (2)
1. A railway interlocking signal management system comprises a filtering receiving module and a push-pull oscillation module, and is characterized in that the filtering receiving module receives an analog signal output by a railway interlocking signal transmitting module, the filtering receiving module is connected with the push-pull oscillation module, and an output signal of the push-pull oscillation module is transmitted into a railway interlocking signal management system terminal through a signal transmitter E1;
the push-pull oscillation module comprises a transistor Q1, wherein the base of a transistor Q1 is connected with one end of a resistor R3 and the anode of a diode D2, the collector of a transistor Q1 is connected with the collector of a transistor Q3, the other end of a resistor R3 and a power supply +5V, the emitter of the transistor Q3 is connected with the emitter of the transistor Q3, the emitter of the transistor Q3 and one end of a capacitor C3 and one end of a resistor R3, the base of the transistor Q3 is connected with one end of the resistor R3 and the cathode of the diode D3, the collector of the transistor Q3 and the other end of the resistor R3 are grounded, the other end of the capacitor C3 is connected with one end of the resistor R3 and the non-phase input end of the operational amplifier AR3, the other end of the resistor R3 is grounded, one end of the inverting input end of the operational amplifier AR3 and one end of the emitter of the transistor Q3 and the emitter of the transistor R3 are connected with the power supply 3.3V and one end of the resistor R3 are connected with the, the other end of the resistor R is connected with the inverting input end of the amplifier AR, the non-inverting input end of the amplifier AR is connected with one end of the resistor R, the other end of the resistor R is connected with one end of the resistor R, one end of the capacitor C and the collector of the triode Q, the other end of the capacitor C is grounded, the other end of the capacitor C is connected with the anode of the diode D, the cathode of the diode D is connected with the resistor R, the other end of the resistor R and the collector of the triode Q and one end of the capacitor C, the other end of the capacitor C is connected with one end of the resistor R, the other end of the resistor R is connected with the base of the triode Q and one end of the capacitor C, the other end of the resistor C and the resistor R, the other ends of the resistor R and the capacitor C are grounded, the emitter of the triode Q is connected with the other end of the capacitor C and one end of the capacitor C, the, the other end of the resistor R17 is connected with the anode of the diode D5, the cathode of the diode D5 is connected with the non-inverting input end of the operational amplifier AR3, the inverting input end of the operational amplifier AR3 is connected with the output end of the operational amplifier AR3 and the anode of the diode D6, the cathode of the diode D6 is connected with the output end of the operational amplifier AR4, one end of the resistor R16, the output end of the operational amplifier AR2 and the inverting input end of the operational amplifier AR4, and the other end of the resistor R16 is connected with the signal transmitter E1.
2. The railway interlocking signal management system as claimed in claim 1, wherein the filtering receiving module comprises an inductor L1, one end of the inductor L1 is connected with one end of a resistor R1, a resistor R2 and a capacitor C1, the other end of the resistor R1 is connected with the negative electrode of a voltage regulator D1 and the other end of a capacitor C1, and a signal output port of the railway interlocking signal transmitting module, the positive electrode of the voltage regulator D1 is grounded, and the other end of the inductor L1 is connected with the other end of the resistor R2 and a signal input port of the push-pull oscillation module.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010897126.9A CN111953433B (en) | 2020-08-31 | 2020-08-31 | Railway interlocking signal management system |
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| CN202010897126.9A CN111953433B (en) | 2020-08-31 | 2020-08-31 | Railway interlocking signal management system |
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| CN111953433B CN111953433B (en) | 2021-06-08 |
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