CN203902578U - Phase detecting track circuit microelectronic receiving system - Google Patents

Phase detecting track circuit microelectronic receiving system Download PDF

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Publication number
CN203902578U
CN203902578U CN201420211742.4U CN201420211742U CN203902578U CN 203902578 U CN203902578 U CN 203902578U CN 201420211742 U CN201420211742 U CN 201420211742U CN 203902578 U CN203902578 U CN 203902578U
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China
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circuit
track
signal
primary processor
unit
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Inventor
易立富
余颜丽
杨捷
王坚强
刘孜学
虞凯
徐尚虎
罗薇
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Sichuan Hao Tie Instrument And Meter Co Ltd
China Railway Eryuan Engineering Group Co Ltd CREEC
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Sichuan Hao Tie Instrument And Meter Co Ltd
China Railway Eryuan Engineering Group Co Ltd CREEC
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Abstract

A phase detecting track circuit microelectronic receiving system comprises a first receiver, a second receiver, a rail circuit signal and local power supply signal input circuit connected with the first receiver and the second receiver, and a rail receiving executive circuit, wherein the first receiver comprises a first signal acquisition unit, a first main processor, a first salve processor, a first judgment unit and a first output control unit; the rail signal output end of the first signal acquisition unit is respectively connected with the first main processor and the first slave processor; one output end of the first main processor and one output end of the first slave processor are respectively connected with two input ends of the first judgment unit; the output end of the first judgment unit is connected to the input end of the first output control unit; the first output control unit is provided with a first control signal output end. According to the utility model, a core data analysis processing module for the receivers adopts a two-out-of-two safety structure, so that the safety of the novel receivers is improved.

Description

Phase detecting track circuit microelectronics receiving system
Technical field
The utility model relates to automatic technology.
Background technology
Phase detecting track circuit are as the key equipment in railway signal field, for checking taking and the free time of rail, its equipment forms as shown in Figure 1, comprises feed end equipment and receiving end equipment, and wherein microelectronics phase sensitivity receptor is a key link of track circuit receiving end.
Along with the development of Eltec, phase detecting track circuit receive signal processor unit and progressively realize electronization, two relays of mechanical type binary before replacing with electronic receiver, have thoroughly solved the problems such as former relay tip jam, anti-electrified interference performance are not strong, release factor is low.
Now widely used microelectronics receptor is all to carry out process information with micro controller system, adopt boosting mode to carry out sampling processing to incoming signal, though improved signal strength, but be unfavorable for preventing that the high pressure because inputting under the abnormal condition such as thunder and lightning or traction power supply from damaging receptor; And each receptor only adopts single signal treatment channel (as shown in Figure 2) to carry out signal analysis and processing, and by its output signal drive track actuating of relay, safety, reliability and the antijamming capability of receptor have much room for improvement; In addition, the related electric parameter of existing receptor and self mode of operation can not Real-Time Monitorings; Aforementioned deficiency has had influence on global reliability and the availability of track circuit.
Utility model content
Technical problem to be solved in the utility model is that a kind of phase detecting track circuit microelectronics receiving system with high security and high reliability is provided.
The technical scheme that the utility model solve the technical problem employing is, phase detecting track circuit microelectronics receiving system, comprise that the first receptor, the second receptor, the track-circuit signalling being connected with the two and local power supply signal input circuit and track receive executive circuit, is characterized in that
The first receptor comprises first signal collecting unit, the first primary processor, first from treater, the first decision unit, the first output control unit, the local signal mouth of first signal collecting unit is connected respectively to the first primary processor and first from treater, the track signal mouth of first signal collecting unit is connected respectively to the first primary processor and first from treater, mouth of the first primary processor is connected respectively two input ends of the first decision unit with first from a mouth of treater, the mouth of the first decision unit is connected to the input end of the first output control unit, the first output control unit has the first control signal mouth,
The second receptor comprises secondary signal collecting unit, the second primary processor, second from treater, the second decision unit and the second output control unit, the local signal mouth of secondary signal collecting unit is connected respectively to the second primary processor and second from treater, the track signal mouth of secondary signal collecting unit is connected respectively to the second primary processor and second from treater, mouth of the second primary processor is connected respectively two input ends of the second decision unit with second from a mouth of treater, the mouth of the second decision unit is connected to the input end of the second output control unit, the second output control unit has the second control signal mouth.
Further illustrate, described first signal collecting unit comprises that local signal gathers branch road and track signal gathers branch road, local signal gathers branch road and comprises local input isolation circuit and the local signal Acquisition Circuit being attached thereto, local input isolation circuit has local signal input end, local signal Acquisition Circuit has two mouths, connects respectively the first primary processor and first from treater; Track signal gathers branch road and comprises track input lightning protection circuit and the track signal Acquisition Circuit being attached thereto, track input lightning protection circuit has track signal input end, track signal Acquisition Circuit has two mouths, connects respectively the first primary processor and first from treater; The structure of secondary signal collecting unit is identical with first signal collecting unit.
Described the first receptor also comprises the first monitoring means, described the first monitoring means is connected with the first primary processor, for monitoring receiver mode of operation and track circuit related electric parameter, and information is passed to monitoring unit, described the first monitoring means comprises the first display alarm unit and the first communication unit; Described the second receptor also comprises the second monitoring means, described the second monitoring means is connected with the second primary processor, for monitoring receiver mode of operation and track circuit related electric parameter, and information is passed to monitoring unit, described the second monitoring means comprises the second display alarm unit and second communication unit.The partial function of monitoring means can be completed by primary processor on hardware, or by being independent of primary processor and completing from the hardware of treater.
Further illustrate, the first output control unit has a mouth to connect the first primary processor, first also has a mouth to be connected to the first primary processor from treater, and the first primary processor has two mouths to connect respectively the first display alarm unit and the first communication unit; The second output control unit has a mouth to connect the second primary processor, and second also has a mouth to be connected to the second primary processor from treater, and the second primary processor has two mouths to connect respectively the second display alarm unit and second communication unit.
Described the first primary processor, first from treater, the second primary processor and second from treater all using DSP as processor core.
Illustrate further, as shown in Figure 5, in the first receptor, first signal collecting unit has two track signals and gathers branch road, for track signals different two-way is outputed to the first primary processor, and, track signals different two-way is outputed to first from treater; First signal collecting unit also has two local signals and gathers branch road, for local signals different two-way is outputed to the first primary processor, and, local signals different two-way is outputed to first from treater; The first decision unit comprises two safe AND circuit, two input ends of each safe AND circuit are connected from treater with the first primary processor and first respectively, two safe AND circuit connect an output control circuit separately, two output control circuits are also connected respectively to the first primary processor.The structure of the second receptor is identical with the first receptor.
Described the first decision unit and the second decision unit are all safe AND circuit.
Described track input lightning protection circuit comprises a step-down isolation transformer, its high voltage input terminal signal input part that integrates with, and low-voltage output connects subsequent conditioning circuit.
The beneficial effects of the utility model are:
Receptor of the present utility model adopts dsp chip to replace the micro controller system of former receptor, utilize signal sampling, analysis and processing capacity that DSP is powerful to realize frequency and the Selecting phasing of phase detecting track circuit signal and local power supply signal, strengthen signal handling capacity and the antijamming capability of receptor;
The core data analysis and processing module (hardware and software) of receptor of the present utility model adopts two to get two safeguard constructions, improves the safety of novel receiver;
Receptor of the present utility model is possessing on the basis of existing receptor all functions, increase receptor fault self-checking function, and the isoparametric monitoring of the track alternating-current voltage/AC voltage of track circuit and phase angle and transfer function, thereby global reliability and the availability of raising track circuit;
Receptor of the present utility model adopts hot backup redundancy structure (as shown in Figure 6 and Figure 7) in the system architecture that forms track-circuit signalling reception & disposal, can improve the global reliability of track circuit system;
With respect to current receptor redundancy scheme, the redundancy scheme of receptor of the present utility model can make each track section save a receptor (as shown in Figure 6 and Figure 7), thereby reducings the construction costs;
In order to meet the transport property of existing phase detecting track circuit system, it is constant with the electrical specification of existing receptor that imput output circuit of the present utility model maintains.
Brief description of the drawings
Fig. 1 is phase sensitivity receptor track circuit equipment pie graph.
Fig. 2 is existing microelectronics receiver system structured flowchart.
Fig. 3 is microelectronics receiver system schematic diagram.
Fig. 4 is the system architecture diagram of the first detailed description of the invention.
Fig. 5 is the system architecture diagram of the second detailed description of the invention.
Fig. 6 is the redundancy structure figure of the receiving system of prior art.
Fig. 7 is the redundancy structure figure of receiving system of the present utility model (0.5+0.5 scheme).
Fig. 8 is signal input isolation and lightning protection basic circuit.
Detailed description of the invention
The utility model adopts digital processing technology, two to get the phase detecting track circuit acceptor device of two Safe Redundant Architectures, and this receptor comprises: local input isolation circuit, track input lightning protection circuit, incoming signal Acquisition Circuit, data processing circuit (dsp chip), safe AND circuit, output control circuit, power circuit, communication circuit and demonstration and warning circuit.Every receptor is made up of two paths of data treatment channel, and two paths adopts the diverse algorithm of two covers to carry out data processing, realizes two and gets two safeguard construction; Adopt digital processing technology (DSP) to realize sampling, analysis and the processing of phase detecting track circuit signal and local power supply signal; Increase monitoring and the transfer function of receptor fault self-checking and track circuit related electric parameter; This receptor also utilizes the processing data ability that DSP is powerful simultaneously, realizes a receptor and process simultaneously the function of two track section signals, can reduce and build and maintenance cost.
The utility model type is described as an example of 25Hz phase detecting track circuit receptor example, and principle is equally applicable to 50Hz phase detecting track circuit receptor.
Detailed description of the invention one: present embodiment is applicable to a receptor reception and processes the situation of a railroad track section signal.
Embodiment 1: referring to Fig. 4 and Fig. 6.
The structured flowchart of receiver system shown in Fig. 3 is by meeting current service condition (each track section adopts two receptors) design, adopt two receptors to process a track section signal, these two receptors formation hot backup redundancy relations (as shown in Figure 6) improve the reliability of this track circuit section signal reception & disposal simultaneously.
Specifically, phase detecting track circuit microelectronics receiving system, comprise that the first receptor, the second receptor, the track-circuit signalling being connected with the two and local power supply signal input circuit and track receive executive circuit, the first receptor comprises that first signal collecting unit, the first primary processor, first are from treater, the first decision unit, the first output control unit
Described first signal collecting unit comprises that local signal gathers branch road and track signal gathers branch road, local signal gathers branch road and comprises local input isolation circuit and the local signal Acquisition Circuit being attached thereto, local input isolation circuit has local signal input end, local signal Acquisition Circuit has two mouths, connects respectively the first primary processor and first from treater; Track signal gathers branch road and comprises track input lightning protection circuit and the track signal Acquisition Circuit being attached thereto, track input lightning protection circuit has track signal input end, track signal Acquisition Circuit has two mouths, connects respectively the first primary processor and first from treater;
Mouth of the first primary processor is connected respectively two input ends of the first decision unit with first from a mouth of treater, the mouth of the first decision unit is connected to the input end of the first output control unit, and the first output control unit has the first control signal mouth;
The mouth of the first output control unit connects the first primary processor, and first also has a mouth to be connected to the first primary processor from treater, and the first primary processor has two mouths to connect respectively the first display alarm unit and the first communication unit;
The structure of the second receptor is identical with the first receptor.
The each circuit module of receptor is respectively described below:
Input isolation circuit: adopt isolating transformer that track signal and local signal and rear class signal processing module are carried out to electromagnetic isolation, isolating transformer adopts step-down mode, in the time there is large impact or disturb in the signal of input, decay by voltage transformer, the signal being carried in rear class signal processing circuit will be attenuated, and rear class signal processing circuit is played to protective action.
Track input lightning protection circuit: take great power bidirectional transient state anti-thunder tube, realize the protection to input thunder and lightning and surge, signal input isolation and lightning protection basic circuit as shown in Figure 7.
Local signal Acquisition Circuit and track signal Acquisition Circuit: more than the negative half-cycle signal of input exchange signal is lifted to zero level, meet the input requirements of rear class single supply work amplifier, single supply work can reduce device power consumption.
Master/slave treater: the 25Hz track of input and local analog passband signal are crossed to the A/D A and D converter that chip carries and be converted to digital signal, digital signal after conversion is carried out to analyzing and processing, measure the 25Hz signal amplitude of track input and the phase difference of track signal and local signal, in primary processor collection from the output signal of treater and the output signal of rear class output control circuit and after it judges that receptor is normal, again by primary processor control display alarm circuit, and send monitoring unit by related data by the communicating circuit of receptor by primary processor.
Safe AND circuit: relatively principal and subordinate DSP output signal, adjudicate the two through safety and door and unanimously can send useful signal to rear class output control circuit.
Output control circuit: adopt Switching Power Supply mode to export the d. c. voltage signal of drive track relay.
Communication circuit: adopt bus mode, the information such as the mode of operation of track ac voltage, phase angle and the receptor collecting to concentrated monitoring unit transmission 25Hz phase detecting track circuit receptor.
Display alarm circuit: the taking and idle condition of display receiver self mode of operation and track section that receptor is processed, the normal or faulty condition of display receiver DC24V working power and locally supplied power source.
Embodiment 2:
The difference of the present embodiment and embodiment 1 is, the partial function of the monitoring means of embodiment 1 is completed by primary processor on hardware, and the monitoring means of the present embodiment is independent of primary processor on hardware and from treater.
With regard to monitoring function, specifically, the first receptor also comprises the first monitoring means, described the first monitoring means is connected from treater and the first output control circuit with the first primary processor, first, for monitoring receiver mode of operation and track circuit related electric parameter, and information is passed to monitoring unit, described the first monitoring means also comprises the first display alarm unit and the first communication unit.
The structure of the second receptor is identical with the first receptor.
Detailed description of the invention two: present embodiment is applicable to a receptor reception and processes the situation of two railroad track section signals.
Referring to Fig. 5 and Fig. 7.
The difference of present embodiment and embodiment one is, present embodiment can receive simultaneously and process the signal of two railroad track sections.
In the first receptor of present embodiment, first signal collecting unit has two track signals and gathers branch road, for track signals different two-way is outputed to the first primary processor, and, track signals different two-way is outputed to first from treater; First signal collecting unit also has two local signals and gathers branch road, for local signals different two-way is outputed to the first primary processor, and, local signals different two-way is outputed to first from treater;
The first decision unit comprises two safe AND circuit, and two input ends of each safe AND circuit are connected from treater with the first primary processor and first respectively, and two safe AND circuit are connected with an output control circuit separately.First has a mouth to be connected to the first primary processor from treater, and two output control circuits are also connected respectively to the first primary processor, and the first primary processor is connected with the first display alarm unit and communication unit.
The structure of the second receptor is identical with the first receptor.
Of the present utility model two get two safeguard construction principle explanations:
As shown in Figure 4 and Figure 5, the utility model type receptor core processing part adopts two dsp chips to form two and gets two safeguard constructions.Principal and subordinate DSP processes track-circuit signalling and local power supply signal simultaneously, exports respectively decision signal; The court verdict of principal and subordinate DSP is carried out and computing, if the decision signal of principal and subordinate DSP is inconsistent, maintenance track relay is in full state by receptor output signal; Only have in the time that the decision signal of principal and subordinate DSP is consistent and meet track section idle condition, receptor is just exported the signal of drive track relay energized, and demonstration track section is in idle condition; The arbitrary fault of principal and subordinate DSP, receptor all can not be exported the signal of drive track relay energized, thereby improves receptor safety.
Redundancy structure principle explanation of the present utility model:
The utlity model has the feature of hot backup redundancy structure, Ruo Yi road signal processing channel fault, the normal signal processing channel in another road can ensure normal process track signal incessantly.Casehistory is as follows:
Figure 6 shows that the receptor redundancy structure figure that meets current service condition, each track section adopts two receptors to carry out the processing of track-circuit signalling and local power supply signal, wherein arbitrary receptor is normal, all can this track section signal of normal process, and drive the action of rear class track relay.
Figure 7 shows that the redundancy structure figure of this novel receiver, every receptor carries out the track-circuit signalling of two track sections (section A and section B) and the processing of local power supply signal simultaneously, adjacent two track sections can share two receptors, arbitrary normal work in these two receptors, all can these two track section signals of normal process, and drive the rear class track relay action of these two track sections.As can be seen from Figure 7, with respect to current receptor redundancy scheme, the redundancy scheme of this novel receiver can make each track section save a receptor, thereby reducings the construction costs.
In receptor redundancy structure figure shown in Fig. 6 and Fig. 7, in the time of some et out of orders in receptor 1 and receptor 2, the receptor of another normal work can be guaranteed the normal process of track section signal; Can send warning by the self-checking function of receptor, remind service personnel to change in time fault receptor, thereby improve the overall usability of track circuit simultaneously.
In order to obtain better lightning protection effect, the utility model adopts the mode of step-down input.Track input lightning protection circuit comprises a step-down transformer, its input end signal input part that integrates with, output termination subsequent conditioning circuit.Referring to Fig. 8.
Specification sheets has absolutely proved principle of the present utility model and necessary technology content, and those of ordinary skill can be implemented according to specification sheets, therefore repeat no more more detailed details.

Claims (9)

1. phase detecting track circuit microelectronics receiving system, comprises that the first receptor, the second receptor and the track-circuit signalling being connected with the two and local power supply signal input circuit and track receive executive circuit, is characterized in that:
The first receptor comprises first signal collecting unit, the first primary processor, first from treater, the first decision unit, the first output control unit, the local signal mouth of first signal collecting unit is connected respectively to the first primary processor and first from treater, the track signal mouth of first signal collecting unit is connected respectively to the first primary processor and first from treater, mouth of the first primary processor is connected respectively two input ends of the first decision unit with first from a mouth of treater, the mouth of the first decision unit is connected to the input end of the first output control unit, the first output control unit has the first control signal mouth,
The second receptor comprises secondary signal collecting unit, the second primary processor, second from treater, the second decision unit and the second output control unit, the local signal mouth of secondary signal collecting unit is connected respectively to the second primary processor and second from treater, the track signal mouth of secondary signal collecting unit is connected respectively to the second primary processor and second from treater, mouth of the second primary processor is connected respectively two input ends of the second decision unit with second from a mouth of treater, the mouth of the second decision unit is connected to the input end of the second output control unit, the second output control unit has the second control signal mouth.
2. phase detecting track circuit microelectronics receiving system as claimed in claim 1, is characterized in that, described first signal collecting unit comprises that local signal gathers branch road and track signal gathers branch road;
Local signal gathers branch road and comprises local input isolation circuit and the local signal Acquisition Circuit being attached thereto, local input isolation circuit has local signal input end, local signal Acquisition Circuit has two mouths, connects respectively the first primary processor and first from treater;
Track signal gathers branch road and comprises track input lightning protection circuit and the track signal Acquisition Circuit being attached thereto, track input lightning protection circuit has track signal input end, track signal Acquisition Circuit has two mouths, connects respectively the first primary processor and first from treater;
The structure of secondary signal collecting unit is identical with first signal collecting unit.
3. phase detecting track circuit microelectronics receiving system as claimed in claim 1, is characterized in that:
Described the first receptor also comprises the first monitoring means, described the first monitoring means is connected with the first primary processor, for monitoring receiver mode of operation and track circuit related electric parameter, and information is passed to monitoring unit, described the first monitoring means also comprises the first display alarm unit and the first communication unit;
Described the second receptor also comprises the second monitoring means, described the second monitoring means is connected with the second primary processor, for monitoring receiver mode of operation and track circuit related electric parameter, and information is passed to monitoring unit, described the second monitoring means also comprises the second display alarm unit and second communication unit.
4. phase detecting track circuit microelectronics receiving system as claimed in claim 1, is characterized in that:
The first output control unit has a mouth to connect the first primary processor, and first also has a mouth to be connected to the first primary processor from treater, and the first primary processor has two mouths to connect respectively the first display alarm unit and the first communication unit;
The second output control unit has a mouth to connect the second primary processor, and second also has a mouth to be connected to the second primary processor from treater, and the second primary processor has two mouths to connect respectively the second display alarm unit and second communication unit.
5. phase detecting track circuit microelectronics receiving system as claimed in claim 1, is characterized in that, described the first primary processor, first from treater, the second primary processor and second from treater all using DSP as processor core.
6. phase detecting track circuit microelectronics receiving system as claimed in claim 1, is characterized in that:
In the first receptor, first signal collecting unit has two track signals and gathers branch road, for track signals different two-way is outputed to the first primary processor, and, track signals different two-way is outputed to first from treater;
First signal collecting unit also has two local signals and gathers branch road, for local signals different two-way is outputed to the first primary processor, and, local signals different two-way is outputed to first from treater;
The first decision unit comprises two safe AND circuit, and two input ends of each safe AND circuit are connected from treater with the first primary processor and first respectively, and two safe AND circuit are connected with an output control circuit separately;
The structure of the second receptor is identical with the first receptor.
7. phase detecting track circuit microelectronics receiving system as claimed in claim 6, is characterized in that, two output control circuits are also connected respectively to the first primary processor.
8. phase detecting track circuit microelectronics receiving system as claimed in claim 6, is characterized in that, described track input lightning protection circuit comprises a step-down transformer, its input end signal input part that integrates with, output termination subsequent conditioning circuit.
9. phase detecting track circuit microelectronics receiving system as claimed in claim 1, is characterized in that, described the first decision unit and the second decision unit are all safe AND circuit.
CN201420211742.4U 2014-04-28 2014-04-28 Phase detecting track circuit microelectronic receiving system Active CN203902578U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104002833A (en) * 2014-04-28 2014-08-27 中铁二院工程集团有限责任公司 Micro-electronic receiving system of phase-sensitive track circuit
CN109606424A (en) * 2018-12-27 2019-04-12 合肥工业大学 A kind of track circuit electronic receiver
CN111751608A (en) * 2020-06-24 2020-10-09 合肥工大高科信息科技股份有限公司 Station phase-sensitive track signal detection device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104002833A (en) * 2014-04-28 2014-08-27 中铁二院工程集团有限责任公司 Micro-electronic receiving system of phase-sensitive track circuit
CN109606424A (en) * 2018-12-27 2019-04-12 合肥工业大学 A kind of track circuit electronic receiver
CN111751608A (en) * 2020-06-24 2020-10-09 合肥工大高科信息科技股份有限公司 Station phase-sensitive track signal detection device

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