CN109606424A - A kind of track circuit electronic receiver - Google Patents
A kind of track circuit electronic receiver Download PDFInfo
- Publication number
- CN109606424A CN109606424A CN201811611396.8A CN201811611396A CN109606424A CN 109606424 A CN109606424 A CN 109606424A CN 201811611396 A CN201811611396 A CN 201811611396A CN 109606424 A CN109606424 A CN 109606424A
- Authority
- CN
- China
- Prior art keywords
- unit
- track
- signal
- electronic receiver
- inductance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000004891 communication Methods 0.000 claims abstract description 88
- 238000012545 processing Methods 0.000 claims abstract description 84
- 230000003750 conditioning effect Effects 0.000 claims abstract description 73
- 238000001514 detection method Methods 0.000 claims abstract description 53
- 238000002955 isolation Methods 0.000 claims abstract description 12
- 230000001681 protective effect Effects 0.000 claims description 62
- 238000006243 chemical reaction Methods 0.000 claims description 23
- 230000005611 electricity Effects 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000009466 transformation Effects 0.000 claims description 2
- 241000208340 Araliaceae Species 0.000 description 8
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 8
- 235000003140 Panax quinquefolius Nutrition 0.000 description 8
- 235000008434 ginseng Nutrition 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 238000005070 sampling Methods 0.000 description 6
- 239000003990 capacitor Substances 0.000 description 5
- 230000013011 mating Effects 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 230000005856 abnormality Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 208000025274 Lightning injury Diseases 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000005194 fractionation Methods 0.000 description 1
- 230000010365 information processing Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004377 microelectronic Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L1/00—Devices along the route controlled by interaction with the vehicle or train
- B61L1/18—Railway track circuits
- B61L1/181—Details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L1/00—Devices along the route controlled by interaction with the vehicle or train
- B61L1/20—Safety arrangements for preventing or indicating malfunction of the device, e.g. by leakage current, by lightning
Landscapes
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Mechanical Engineering (AREA)
- Train Traffic Observation, Control, And Security (AREA)
Abstract
The present invention provides a kind of track circuit electronic receiver, including, at least one track signal acquisition unit, digital signal processing unit, communication unit；Wherein, track signal acquisition unit includes track signal conditioning unit and frequency width detection unit；Track signal conditioning unit includes the first inductance and the second inductance and transformer, first inductance connects track signal with the input terminal of second inductance, the output end of first inductance and the second inductance connects the input terminal of transformer, and the output end of transformer connects the frequency width detection unit；Track signal is transported to the detection that frequency width detection unit carries out frequency and amplitude after the isolation boosting of first inductance, the second inductance and transformer.Using the present invention, product cost is improved while interface features can be met.
Description
Technical field
The present invention relates to motive power control technical field, especially a kind of track circuit electronic receiver.
Background technique
Phase-sensitive track circuits are as the key equipment in railway track circuit field, for detecting occupancy, the free time of rail
State.With the development of electronic technology, phase sensitive rail circuit receiver has been realized in electronization, completely instead of old-fashioned
Two relays of binary.
Now widely used microelectronics receiver is all made of single-chip microcontroller to acquire information, to input signal using individual
Track step-up transformer carries out boosting processing to improve signal strength, needs individual module since the volume of step-up transformer is big
It is installed, space utilization rate is low, and wiring is complicated, is unfavorable for on-site maintenance and installation, engineering cost performance is low.25Hz track simultaneously
Circuit duty parameter is complicated, and equipment is in use, need engineering staff scene to carry out a large amount of cumbersome adjustment, large labor intensity, work
The journey period is long.Furthermore track relay is directly controlled using output signal, with the mating capability of Computer signal interlock system compared with
Difference.
Summary of the invention
In view of the foregoing deficiencies of prior art, the purpose of the present invention is to provide a kind of track circuit electronic receipts
Device, for solving, step-up transformer volume in track circuit electronic receiver in the prior art is big to need individual module to be pacified
Dress, space utilization rate is low, and wiring is complicated, is unfavorable for on-site maintenance and installation, engineering cost performance is low, track circuit duty parameter tune
Whole trouble and the technical problem poor with Computer signal locking system mating capability.
In order to achieve the above objects and other related objects, the present invention provides a kind of track circuit electronic receiver, the rail
Road electric circuit electronics technical receiver includes:
At least one track signal acquisition unit, the input terminal of each track signal acquisition unit and a track are believed
Number be connected；
Digital signal processing unit is coupled with the output end of each track signal acquisition unit；
Communication unit, one end of the communication unit are connected with the output end of the digital processing element, another termination
Peripheral apparatus；
Wherein, the track signal acquisition unit includes track signal conditioning unit and frequency width detection unit；
The track signal conditioning unit includes the first inductance and the second inductance and transformer, first inductance and institute
The input terminal for stating the second inductance connects the track signal, described in first inductance is connected with the output end of second inductance
The output end of the input terminal of transformer, the transformer connects the frequency width detection unit；
The track signal is conveyed after the isolation boosting of second inductance and the transformer through first inductance
The detection of frequency and amplitude is carried out to the frequency width detection unit.
Optionally, the track circuit electronic receiver further includes track signal input protective unit, the track signal
The input terminal of input protective unit is connected with the track signal, and the output end of the track signal input protective unit is couple to
The input terminal of the track signal conditioning unit.
Optionally, the track circuit electronic receiver further includes local signal conditioning unit, the local signal conditioning
The input terminal of unit is connected with the local signal, the output end of the local signal conditioning unit and the Digital Signal Processing
Unit coupling, the local signal conditioning unit are used to carry out frequency collection to the local signal.
Optionally, the track circuit electronic receiver further includes local signal input protective unit, the local signal
Protective unit is connected between the local signal and the local signal conditioning unit.
Optionally, the track signal acquisition unit further includes low pass protective unit, for filtering out in the track signal
Power frequency and high-frequency signal；The input terminal of the low pass protective unit is connected with the output end of the track signal conditioning unit,
The output end of the low pass protective unit is connected with the frequency width detection unit.
Optionally, the track signal conditioning unit further include: first resistor, second resistance and switching switch；It is described
One end of the output end of transformer connects the first end of the first resistor, and the other end of the output end of the transformer connects institute
The second end of second resistance is stated, the second end of the first resistor is connected with the first end of the second resistance, and the switching is opened
Two input terminals closed are separately connected the both ends of the first resistor, and the output end of the switching switch and low pass protection are single
The input terminal of member is connected, and the switching switch is connected with the digital signal processing unit, the digital signal processing unit control
The switching switch is made to switch over.
Optionally, the communication unit includes state communication unit and work ginseng communication unit.
Optionally, the track circuit electronic receiver further includes dynamic control unit, the dynamic control unit it is defeated
Enter end to be connected with the output end of the digital signal processing unit, the output end of the dynamic control unit and the state communication
The enabled control terminal of unit is connected；When the track circuit electronic receiver detects faults itself, the dynamic control unit
Cut off the correspondence with foreign country of the state communication unit.
Optionally, the track circuit electronic receiver further includes power conversion unit, and the power conversion unit will be for
Electric power conversion is each power unit power supply that different output voltages is the track circuit electronic receiver.
Optionally, the structure of the track circuit electronic receiver takes two redundancy structures including two.
As described above, in track circuit electronic receiver of the invention, it, will by way of inductance and transformer separation
Signal conditioning unit is split as the inductance and transformer of small size by the transformer of large volume, is mentioned while meeting interface features
High product cost；
Also, using isolation boosting, switching range is in a manner of improving signal-to-noise ratio and mating low pass protective unit again, Ke Yiyou
Effect prevents influence of the interference signals such as industrial frequency traction electric current, coding signal to sampling, improves adopting for digital signal processing unit
Sample resolution ratio；
Also, taking two redundancy structures using two, the reliable and precision of sampled signal is improved, ensure that track circuit electronics connects
The safety of device is received, collection result is reported to Computer signal interlock system by the way of two-way redundancy communication, improves and connect
Receive the availability of device fitting computer interlocking of signals system；
Also, running parameter built in by the way of communication, can be arranged, adjustment, to live work by Artificial scene
Adaptable, the reduction engineering staff's labor intensity of condition；
Also, the damage track circuit electronic receiver such as lightning stroke can be prevented by increasing input protective unit.
Detailed description of the invention
Fig. 1 is shown as the internal frame diagram of track circuit electronic receiver of the invention.
Fig. 2 is shown as the power conversion unit internal frame diagram of track circuit electronic receiver of the invention.
Fig. 3 is shown as the track signal conditioning unit internal frame diagram of track circuit electronic receiver of the invention.
Fig. 4 is shown as the frequency detecting unit internal frame diagram of track circuit electronic receiver of the invention.
Fig. 5 is shown as the local signal conditioning unit internal frame diagram of track circuit electronic receiver of the invention.
Component label instructions
1 track signal acquisition unit
11 first track signal acquisition units
111 first track signal conditioning units
112 first low pass protective units
113 first frequency detection units
114 first amplitude detection units
12 second track signal acquisition units
121 second track signal conditioning units
122 second low pass protective units
123 second frequency detection units
124 second amplitude detection units
2 digital signal processing units
21 first digital signal processing units
22 second digital signal processing units
3 communication units
311 first state communication units one
312 first state communication units two
321 second state communication units one
322 second state communication units two
331 first works join communication unit
332 first works join communication unit
41 first dynamic control units
42 second dynamic control units
51 first partial signal conditioning units
52 second local signal conditioning units
61 track signals input protective unit
62 local signals input protective unit
71 first power conversion units
72 second source converting units
Specific embodiment
Illustrate embodiments of the present invention below by way of specific specific example, those skilled in the art can be by this specification
Other advantages and efficacy of the present invention can be easily understood for disclosed content.The present invention can also pass through in addition different specific realities
The mode of applying is embodied or practiced, the various details in this specification can also based on different viewpoints and application, without departing from
Various modifications or alterations are carried out under spirit of the invention.
Please refer to Fig. 1-5.It should be noted that only the invention is illustrated in a schematic way for diagram provided in the present embodiment
Basic conception, only shown in schema then with related component in the present invention rather than component count, shape when according to actual implementation
Shape and size are drawn, when actual implementation kenel, quantity and the ratio of each component can arbitrarily change for one kind, and its component cloth
Office's kenel may also be increasingly complex.
Large volume track transformer can be divided into the inductance and transformer of small size by the present invention by way of fractionation, be improved
Space utilization rate, while passing through modes with improving track signal sampling precision and the rails such as isolation boosting, low pass protection, range switching
The input range of road signal guarantees the accuracy and reliability of orbit information；It is used in track drawn game portion information process
Two take two structures to ensure that the safety of data, and power supply and communications portion use redundant fashion, ensure that the availability of receiver.
It is adapted to by bus communication mode with Computer signal interlock system, improves equipment applicability；Using work built in electronic receiver
Make parameter by way of the setting of Artificial scene, adjustment, improves equipment to adaptable, the reduction work of field working conditions
Journey personnel labor intensity.
Fig. 1 shows the internal frame diagram of track circuit electronic receiver of the invention.Track circuit electronics of the present invention
Receiver is achievable to railway voltage/local voltage of phase-sensitive track circuits system receiving terminal, frequency, the acquisition of phase and track
The identification of state.The track circuit electronic receiver includes at least: at least one track signal acquisition unit 1, each described
The input terminal of track signal acquisition unit 1 is connected with a track signal；Digital signal processing unit 2, with each track
The output end of signal acquisition unit 1 couples；Communication unit 3, one end of the communication unit 3 are defeated with the digital processing element
Outlet is connected, another termination external equipment or equipment.
It should be noted that track circuit electronic receiver of the invention can it is independent simultaneously to multiple track signals simultaneously into
Row processing, each track signal respectively through corresponding track signal acquisition unit 1 carry out signal acquisition (such as track signal frequency
Rate and amplitude acquisition) after, it is input to the digital signal processing unit 2 and performs corresponding processing, to obtain respective rail signal
Parameter value (such as track signal voltage, frequency, the phase difference of track signal and local signal and track condition etc.), it is more
A track signal acquisition unit 1 shares a digital signal processing unit 2 and only shows in Fig. 1 for ease of description
The situation that is handled for track signal all the way.
Specifically, as shown in Figure 1, the track signal acquisition unit 1 includes track signal conditioning unit (the first track letter
Number conditioning unit 111 and the second track signal conditioning unit 121), low pass protective unit (the first low pass protective unit 112 and
Two low pass protective units 122), frequency width detection unit (first frequency detection unit 113, second frequency detection unit 123, first
Amplitude detection unit 114 and the second amplitude detection unit 124)；The input of the track signal conditioning unit terminates the track
Signal, output terminate the input unit of the low pass protective unit；The output of the low pass protective unit terminates the frequency width inspection
The input terminal of unit is surveyed, the output of the frequency width detection unit terminates the digital signal processing unit 2.
As shown in Figure 1, the track circuit electronic receiver of the invention further includes that (the first power supply turns power conversion unit
Change unit 71 and second source converting unit 72), input protective unit (input protective unit 6 and input protective unit 62), office
Portion's signal conditioning unit (first partial signal conditioning unit 51 and the second local signal conditioning unit 52) and dynamic control single
First (the first dynamic control unit 41 and the second dynamic control unit 42).
The power conversion unit is used to power to each unit of the track circuit electronic receiver；It is struck by lightning in order to prevent
Etc. damage of the factors to track circuit electronic receiver, the input protective unit include be located at the track signal and the rail
Track signal input protective unit 61 and the local signal and local signal conditioning between road signal acquisition unit 1
Local signal between unit inputs protective unit 62；The input terminal of the local signal conditioning unit and the local signal phase
Even, the output end of the local signal conditioning unit and the digital signal processing unit 2 couple, and the local signal conditioning is single
Member is for carrying out frequency collection to the local signal；The input terminal of the dynamic control unit and the Digital Signal Processing list
The output end of member 2 is connected, and the output end of the dynamic control unit is connected with the enabled control terminal of the communication unit 3；It is described
When track circuit electronic receiver detects faults itself, the dynamic control unit cuts off the external logical of the communication unit 3
Letter.
Track circuit electronic receiver of the invention takes two redundancy structures using two, below in conjunction with Fig. 1 to the present invention into
Row specifically describes.
As shown in Figure 1, in order to give track circuit electronic receiver each power unit power supply, the track circuit electronic receipt
Device includes first power conversion unit 71 and the second source converting unit 72 is that electricity is formed by way of diode
Source redundant input, first power conversion unit 71 and the second source converting unit 72 pass through the voltage of redundant input
DC/DC or/and LDO (low dropout regulator, low pressure difference linear voltage regulator) are converted into out-put supply to track circuit
Corresponding each unit is powered in electronic receiver, first power conversion unit 71 and the second source converting unit
72 implementation is consistent, and is illustrated by taking the first power conversion unit 71 as an example.
Fig. 2 shows a kind of implementation of the first power conversion unit 71, first power conversion unit 71 includes
The power supply of diode D1, diode D2 and DC/DC1, DC/DC2, DC/DC3, DC/DC4 and LDO, 24V use redundant input
Mode, i.e. 24VDC1 and 24VDC2 merge after diode D1 and diode D2 respectively, while giving described first
Power conversion unit 71 and the second source converting unit 72 provide power supply, and first power conversion unit 71 is by input
Power supply is converted to 5V_DC1 by DC/DC1, then the LDO by being connected with DC/DC1 is converted into 3.3V_DC1；Turned by DC/DC2
It is changed to 12V_DC1 and -12V_DC1；5V_DC1CAN1 is converted to by DC/DC3；5V_DC1CAN2 is converted to by DC/DC4.
Specifically, 5V_DC1,3.3V_DC1, the 12V_DC1, -12V_ of the output of first power conversion unit 71
DC1,5V_DC1CAN1 and 5V_DC1CAN2 are used for the first track signal conditioning unit 111, first partial signal condition
Unit 51, the first low pass protective unit 112, the first digital signal processing unit 21, the 3, first dynamic of first state communication unit
Control unit 41 is powered.It can include " first " each list according to prefix it should be noted that not here being one-to-one relationship
The practical power demand of member is matched.
Similarly, second source converting unit 72 can be by the power conversion of input output such as 5V_DC2,3.3V_DC2,
12V_DC2, it -12V_DC2,5V_DC2CAN1,5V_DC2CAN2, is used for second the 121, second part of track signal conditioning unit
Signal conditioning unit 52, the second low pass protective unit 122, the second digital signal processing unit 22, the second state communication unit 3,
The power supply of second dynamic control unit 42.It should be noted that not here being one-to-one relationship, can include according to prefix
The practical power demand of " second " each unit is matched.
It should be noted that the input of first power conversion unit 71 and the second source converting unit 72 and defeated
Isolation out, the input of first power conversion unit 71 and the second source converting unit 72 can be used Fig. 1 and
Power supply redundancy input mode shown in Fig. 2 independent can also input.
As shown in Figure 1, the track signal acquisition unit 1 includes that the first track signal acquisition unit 11 and the second track are believed
Number acquisition unit 12；The digital signal processing unit 2 includes at the first digital signal processing unit 21 and the second digital signal
Manage unit 22；The communication unit 3 includes state communication unit 3, and the state communication unit 3 includes first state communication unit
One 311, first state communication unit 2 312, the second state communication unit 1 and the second state communication unit 2 322；It is described
The input terminal of first track signal acquisition unit 11 is connected with the track signal, the first track signal acquisition unit 11
Output end is connected with the input terminal of first digital signal processing unit 21, first digital signal processing unit 21 it is defeated
Outlet is connected with the input terminal of the first letter communication unit 3 one and the first letter communication unit 3 two respectively；Second rail
The input terminal of road signal acquisition unit 12 is connected with the track signal, the output end of the second track signal acquisition unit 12
It is connected with the input terminal of second digital signal processing unit 22, the output end point of second digital signal processing unit 22
It is not connected with the input terminal of the second state communication unit 1 and the second state communication unit 2 322, wherein institute
It states the first digital signal processing unit 21 to be connected with second digital signal processing unit 22, and data can be exchanged with each other.?
That is same track signal is divided into two branches passes through the first track signal acquisition unit 11 and the second track signal respectively
Acquisition unit 12 carries out the acquisition of signal, and is respectively delivered to first digital signal processing unit 21 and the second signal
Processing unit is acquired processing.
Specifically, as shown in Figure 1, the first track signal acquisition unit 11 includes the first track signal conditioning unit
111, the first low pass protective unit 112, first frequency detection unit 113 and first amplitude detection unit 114, first track
One end of signal conditioning unit 111 is connected with track signal input protective unit 61, the other end and the first low pass protective unit 112
One end be connected, the other end of the first low pass protective unit 112 connects one end and the first width of first frequency detection unit 113 respectively
Be worth the first end of detection unit 114, the other end of the other end of first frequency detection unit 113 and first amplitude detection unit with
The connection of first digital signal processing unit 21；The second track signal acquisition unit 12 includes the second track signal conditioning unit
121, the second low pass protective unit 122, second frequency detection unit 123 and the second amplitude detection unit 124, second track
One end of signal conditioning unit 121 is connected with track signal input protective unit 61, the other end and the second low pass protective unit 122
One end be connected, the other end of the second low pass protective unit 122 connects one end and the second width of second frequency detection unit 123 respectively
Be worth the first end of detection unit 124, the other end of second frequency detection unit 123 and the second amplitude detection unit 124 it is another
End is connect with the second digital signal processing unit 22.
As shown in Figure 1, track signal, which is divided into two-way after track signal input protective unit 61 inputs, respectively enters first
Track signal conditioning unit and the second track signal conditioning unit, two track signal conditioning unit implementations are consistent, herein
It is illustrated so that the first track believes conditioning unit as an example.
Specifically, a kind of implementation of first track signal conditioning unit, first track signal are given in Fig. 3
Conditioning unit include inductance L1 (the first inductance), L2 (the second inductance), resistance R1 (first resistor), resistance R2 (second resistance) and
Transformer T1, the inductance L1 connect the output end of track signal input protective unit 61 with the input terminal of inductance L2, sense L1 and
The input terminal of the primary side of the output end connection transformer T1 of inductance L2, the first of one end connection resistance R1 on transformer T1 pair side
End, the other end connect the second end of resistance R2, and the second end of R1 is connected with the first end of R2, switch two input terminals of switch K1
The both ends of R1 are separately connected, the output end of K1 is connected to the input terminal of the first low pass protection；The switching switch K1 and described the
One digital signal processing unit 21 is connected, and the digital signal processing unit 2 controls the switching switch K1 and carries out range switching.
The track signal of input is carried out isolation boosting processing by inductance L1, inductance L2 and transformer T1, the track letter after isolation boosting
Number by R1, R2 partial pressure after formed range switching two input signals can be by first when the railway voltage detected is excessive
Digital signal processing unit 21 controls the switching that K1 carries out range.
It should be noted that the first track signal conditioning unit 111 1 and the second track signal conditioning unit 121 by every
Mode from transformation carries out isolation boosting processing to the track signal of input.First track signal conditioning unit 111 1 and second
The transformer of large volume is split as the electricity of small size by track signal conditioning unit 121 by way of inductance and transformer separation
Sense and transformer, improve space utilization rate while meeting interface features.
The low pass protective unit (the first low pass protective unit 112 and the second low pass protective unit 122) is using active
The mode of low-pass filtering limits the signal frequency passed through, by taking 25Hz phase-sensitive track circuits electronic receiver as an example, for
Signal greater than 25Hz carries out depth attenuation, this mode can effectively protect 50Hz Hz noise and electricity caused by traction current
The interference of codeization signal improves the sampling precision of 25Hz track signal.
The frequency detecting unit (first frequency detection unit 113 and second frequency detection unit 123) is used for will be defeated
The AC track signal entered is converted into square-wave signal and carries out frequency collection；First frequency detection unit 113 and second frequency detection
123 implementation of unit is identical, this is illustrated for sentencing first frequency detection unit 113.
Specifically, a kind of implementation of first frequency detection unit 113 is given in Fig. 4, the first frequency detection
Unit includes the first termination described first of resistance R3, diode D3, optocoupler U1, resistance R4 and NOT gate U2, the resistance R3
The input terminal of the output end of low pass protective unit 112, the cathode of the second termination diode D3 and optocoupler U1, two pole
The anode of pipe D3 connects the input terminal of the first low pass protective unit 112 the and described optocoupler U1, the output end of the optocoupler U1
Connect the first end of the resistance R4 and the input terminal of NOT gate U2, the second segment of the resistance R4 meets power supply (such as 3.3V_
DC1), the output of the NOT gate U2 terminates the first digital signal processing unit 21.The track of first low pass protective unit 112 output
Signal enters optocoupler U1 after resistance R3, and optocoupler U1 is used to sinusoidal signal being converted to square-wave signal, the diode D3
For protecting the optocoupler U1 to prevent negative half period voltage from damaging optocoupler U1.
The amplitude detection unit (first amplitude detection unit 114 and the second amplitude detection unit 124) passes through two poles
Pipe and capacitor will send digital signal processing unit 2 (the first digital signal processing unit 21 and the after sine wave signal shaping filter
Two digital signal processing unit 22) carry out AD sampling.
The local signal conditioning unit carries out frequency for converting square-wave signal for the exchange local signal of input
Acquisition.As shown in Figure 1, the local signal conditioning unit includes first partial signal conditioning unit 51 and the second local signal tune
Manage unit 52；One end of the first partial signal conditioning unit 51 is connect by inputting protective unit 62 with local signal, separately
One end is connected with the input terminal of the first digital signal processing unit 21；One end of described second local signal conditioning unit 52 passes through
Input protective unit 62 is connect with local signal, and the other end is connected with the input terminal of the second digital signal processing unit 22.
First partial signal conditioning unit 51 is identical with the second 52 implementation of local signal conditioning unit, this sentences first
It is illustrated for local signal conditioning unit 51.
Specifically, Fig. 5 gives a kind of implementation of first partial signal conditioning unit 51, the first partial signal
Conditioning unit 51 includes resistance R5, resistance R7, capacitor C1, diode D4, optocoupler U3, resistance R6 and NOT gate U4；The resistance
The first end of R5 is connected with local signal input protective unit 62, and the first of the second end of the resistance R5 and the capacitor C1
The input terminal at end, the cathode of the diode D4 and the optocoupler U3 is connected, the first end and local signal of the resistance R7
It inputs protective unit 62 to be connected, the second end of the resistance R7 and the second end of the capacitor C1, the anode of the diode D4
And the input terminal of optocoupler U3 is connected, the output of the optocoupler U3 terminates the first end of the resistance R6 and the input of NOT gate U4
End, the second termination power supply (such as 3.3V_DC1) of the resistance R6, output termination the first number letter of the NOT gate U4
Number processing unit 21.The local signal of the first input protective unit output enters optocoupler by resistance R5 and resistance R7
U3, optocoupler U3 are used for the isolation to local signal and convert, and high pressure sinusoidal signal is switched to low pressure square-wave signal, meanwhile, resistance R5
Low-pass filter circuit is constituted with resistance R7 and capacitor C1, improves the quality of signal, the square-wave signal after conversion is directly defeated
Enter to the first digital signal processing unit 21.
Digital signal processing unit 2 (the first digital signal processing unit 21 and second digital signal processing unit
22) for handling the frequency information of collected track supply frequency and amplitude information, locally supplied power source's signal, according to these information
The phase difference between corresponding track signal voltage, frequency, track signal and local signal is obtained by corresponding algorithm, and
The parameters such as track condition report these parameters by communication unit.
Specifically, first digital signal processing unit 21 and second digital signal processing unit 22 are to collecting
Track signal and local signal data swap (such as the phase of track signal voltage, frequency, track signal and local signal
Potential difference) and two take two to compare, the state of track is judged on this basis.
It should be noted that as shown in Figure 1, the communication unit 3 includes that work joins 3 He of communication unit, the work ginseng communication
Unit includes the first work ginseng communication unit and the second work joins communication unit, the first work ginseng communication unit and second work ginseng
Communication unit is connected with first digital signal processing unit 21 with second digital signal processing unit 22 respectively, another
End is connected by communication port with host computer.The work ginseng communication unit is sentenced error angle, track clear by way of communication
Determine threshold value, the software filtering factor, two take the downloading of the track circuits electronic receiver running parameter such as decision threshold preset, while by rail
Road signal voltage, frequency, phase and built-in running parameter report.
It should be noted that first work ginseng communication unit 331 and second work ginseng communication unit 332 for example can be with
It is R485 communication unit or CAN communication unit, naturally it is also possible to be R232 communication unit, be not limited with enumerating herein.
It should be noted that first digital signal processing unit 21 and second digital signal processing unit 22 are adopted
The information needs collected are exchanged with each other verification, and only verification just will do it after adopting unanimously and report.First Digital Signal Processing list
Member 21 and the second digital signal processing unit 22 mutually monitor the working condition of other side by dynamic control unit, while detecting certainly
The working condition of body can disconnect output in time when an abnormality is discovered, guarantee safety.
First dynamic control unit 41 and the second dynamic control unit 42 is externally logical for controlling communication unit 3
Letter, correspondence with foreign country is cut off when receiver detects faults itself；Two dynamic control unit implementations are consistent, this sentences
It is illustrated for one dynamic control unit 41.
Specifically, the first dynamic control unit 41 is simultaneously by the first digital signal processing unit 21 and the second digital information
Unit control is managed, while the second digital signal processing unit 22 examines the working condition of first dynamic control unit 41
It surveys, cuts off the first dynamic control unit 41 when an abnormality is discovered, guarantee the safety of system.
Similarly, the second dynamic control unit 42 is simultaneously by the first digital signal processing unit 21 and the second digital information processing
Unit control, while the first digital signal processing unit 21 examines the working condition of second dynamic control unit 42
It surveys, cuts off the second dynamic when an abnormality is discovered and control 42 yuan of list, guarantee the safety of system.
It should be noted that the first dynamic control unit 41 and the second dynamic control unit 42 include internal type failure safe
Circuit.First dynamic control unit 41 controls first state communication unit 1 and first state communication unit two simultaneously
312.Similarly, the second dynamic control unit 42 also controls the second state communication unit 1 and the second state communication list simultaneously
Member 2 322.
It should be noted that (first state communication unit 1 and first state are logical for the first state communication unit
312) and the second state communication unit (the second state communication unit 1 and the second state communication unit 2 322) believe unit 2
The mutually isolated connection between the first digital signal processing unit 21 and the second digital signal processing unit 22 simultaneously is used for track
The judgement result (such as occupancy or vacant) of state uploads, such as uploads in Computer signal interlock system.Wherein, first
The redundancy structure being mutually isolated between state communication unit 1 and first state communication unit 2 312, the second state communication
Mutually isolated redundancy structure, is mentioned using the communication mode of redundancy when between unit 1 and the second state communication unit 2 322
The high availability of receiver.
It should be noted that first state communication unit 1, first state communication unit 2 312, the second state it is logical
Letter unit 1 and the second state communication unit 2 322 for example can be R485 communication unit or CAN communication unit, certainly
It can be R232 communication unit, different enumerate herein is limited.
The working method of track circuit electronic receiver of the invention is that the first power conversion unit 71 and second source turn
Changing unit 72 uses the mode of redundancy to provide working power for entire track circuit electronic receiver, and track signal is believed by track
It is divided into two-way after number input protective unit 61, wherein successively anti-by the first track signal conditioning unit 111, the first low pass all the way
Enter first frequency detection unit 113 and first amplitude detection unit 114 simultaneously after protecting unit 112, then enters back into the first number
In word signal processing unit 21, in addition successively pass through the second track signal conditioning unit 121, the second low pass protective unit all the way
Enter second frequency detection unit 123 and the second amplitude detection unit 124 after 122 simultaneously, then enters back into the second digital signal
In processing unit 22；Local signal is divided into two-way after local signal protective unit, wherein all the way through first partial signal tune
Enter in the first digital signal processing unit 21 after managing unit 51, another way enters the after the second local signal conditioning unit 52
In two digital signal processing unit 22；First digital signal processing unit 21 and the second digital signal processing unit 22 are respectively to place
The frequency information of the frequency and amplitude information and local signal of managing collected track signal passes through communication unit after being handled
Member uploads, the relevant portion description as detailed above of the detailed operation mode of each unit.Meanwhile the present invention can also join communication by work
Unit the running parameter of track circuit electronic receiver is downloaded it is preset, such as pass through Artificial scene setting, adjust
Whole, this makes track circuit electronic receiver of the invention strong to the adaptable of field working conditions, reduction engineering staff's labour
Degree.
It should be noted that mutually independent for physics between each unit in the present invention.
It should be noted that orbital electron receiver of the invention both can be by communication unit 4 by Digital Signal Processing
The processing result of unit is reported to host computer and/or Computer signal interlock system, can also without communication unit 4, namely
It can be not provided with communication unit 4, the digital signal processing unit is directly attached with track relay.
In conclusion the present invention provides a kind of track circuit electronic receiver, including at least one track signal acquisition list
The input terminal of member, each track signal acquisition unit is connected with a track signal；Digital signal processing unit, and it is each
The output end of the track signal acquisition unit couples；Communication unit, one end of the communication unit and the digital processing list
The output end of member is connected, another termination peripheral apparatus；Wherein, the track signal acquisition unit includes that track signal conditioning is single
Member and frequency width detection unit；The track signal conditioning unit includes the first inductance and the second inductance and transformer, and described the
One inductance connects the track signal, the output of first inductance and second inductance with the input terminal of second inductance
End connects the input terminal of the transformer, and the output end of the transformer connects the frequency width detection unit；The track signal
Through first inductance, be transported to after the isolation boosting of second inductance and the transformer frequency width detection unit into
The detection of line frequency and amplitude.Using the present invention, by way of inductance and transformer separation, by signal conditioning unit by substantially
Long-pending transformer is split as the inductance and transformer of small size, and product cost is improved while meeting interface features；It is logical
It crosses and uses isolation boosting power frequency can be effectively prevented in a manner of improving signal-to-noise ratio and mating low pass protective unit in switching range again
Influence of the interference signals such as traction current, coding signal to sampling, improves the sampling resolution of digital signal processing unit；It is logical
It crosses and takes two redundancy structures using two, improve the reliable and precision of sampled signal, ensure that the peace of track circuit electronic receiver
Quan Xing；Collection result adopts the mode and Redundancy power supply of redundancy communication, improves the availability of receiver；It is logical by bus
News mode is adapted to Computer signal interlock system, improves equipment applicability；By using running parameter built in the mode of communication,
It can be arranged by Artificial scene, adjustment, to adaptable, the reduction engineering staff's labor intensity of field working conditions；It is logical
Cross increase input protective unit can prevent lightning stroke etc. damage track circuit electronic receiver.So the present invention effectively overcomes
Various shortcoming in the prior art and have high industrial utilization value.
The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.It is any ripe
The personage for knowing this technology all without departing from the spirit and scope of the present invention, carries out modifications and changes to above-described embodiment.Cause
This, institute is complete without departing from the spirit and technical ideas disclosed in the present invention by those of ordinary skill in the art such as
At all equivalent modifications or change, should be covered by the claims of the present invention.
Claims (10)
1. a kind of track circuit electronic receiver characterized by comprising
At least one track signal acquisition unit, input terminal and the track signal phase of each track signal acquisition unit
Even；
Digital signal processing unit is coupled with the output end of each track signal acquisition unit；
Communication unit, one end of the communication unit are connected with the output end of the digital processing element, another termination peripheral hardware
Equipment；
Wherein, the track signal acquisition unit includes track signal conditioning unit and frequency width detection unit；
The track signal conditioning unit includes the first inductance and the second inductance and transformer, first inductance and described the
The input terminal of two inductance connects the track signal, and first inductance connects the transformation with the output end of second inductance
The output end of the input terminal of device, the transformer connects the frequency width detection unit；
The track signal is transported to institute after the isolation boosting of second inductance and the transformer through first inductance
State the detection that frequency width detection unit carries out frequency and amplitude.
2. track circuit electronic receiver according to claim 1, which is characterized in that the track circuit electronic receiver
It further include track signal input protective unit, the input terminal of the track signal input protective unit and the track signal phase
Even, the output end of the track signal input protective unit is couple to the input terminal of the track signal conditioning unit.
3. track circuit electronic receiver according to claim 1, which is characterized in that the track circuit electronic receiver
It further include local signal conditioning unit, the input terminal of the local signal conditioning unit is connected with local signal, the part letter
The output end and the digital signal processing unit of number conditioning unit couple, and the local signal conditioning unit is used for the office
Portion's signal carries out frequency collection.
4. track circuit electronic receiver according to claim 3, which is characterized in that the track circuit electronic receiver
It further include local signal input protective unit, the local signal protective unit is connected to the local signal and the part letter
Between number conditioning unit.
5. track circuit electronic receiver according to claim 1, which is characterized in that the track signal acquisition unit is also
Including low pass protective unit, for filtering out power frequency and high-frequency signal in the track signal；The low pass protective unit it is defeated
Enter end to be connected with the output end of the track signal conditioning unit, the output end of the low pass protective unit and the frequency width detect
Unit is connected.
6. track circuit electronic receiver according to claim 1, which is characterized in that the track signal conditioning unit is also
It include: first resistor, second resistance and switching switch；One end of the output end of the transformer connects the first resistor
First end, the other end of the output end of the transformer connect the second end of the second resistance, and the second of the first resistor
End is connected with the first end of the second resistance, and two input terminals of the switching switch are separately connected the two of the first resistor
The output end at end, the switching switch is connected with the input terminal of the low pass protective unit, the switching switch and the number
Signal processing unit is connected, and the digital signal processing unit controls the switching switch and switches over.
7. track circuit electronic receiver according to claim 1, which is characterized in that the communication unit includes that state is logical
Believe that unit and work join communication unit.
8. track circuit electronic receiver according to claim 7, which is characterized in that the track circuit electronic receiver
It further include dynamic control unit, the output end phase of the input terminal of the dynamic control unit and the digital signal processing unit
Even, the output end of the dynamic control unit is connected with the enabled control terminal of the state communication unit；The track circuit electricity
When sub-receiver detects faults itself, the dynamic control unit cuts off the correspondence with foreign country of the state communication unit.
9. track circuit electronic receiver according to claim 1, which is characterized in that the track circuit electronic receiver
It further include power conversion unit, it is the track electricity that power supply is converted different output voltages by the power conversion unit
Each power unit of road electronic receiver is powered.
10. track circuit electronic receiver described in -9 any one according to claim 1, which is characterized in that the track electricity
The structure of road electronic receiver takes two redundancy structures including two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811611396.8A CN109606424B (en) | 2018-12-27 | 2018-12-27 | Track circuit electronic receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811611396.8A CN109606424B (en) | 2018-12-27 | 2018-12-27 | Track circuit electronic receiver |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109606424A true CN109606424A (en) | 2019-04-12 |
| CN109606424B CN109606424B (en) | 2020-12-18 |
Family
ID=66012185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811611396.8A Active CN109606424B (en) | 2018-12-27 | 2018-12-27 | Track circuit electronic receiver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109606424B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114056380A (en) * | 2021-12-27 | 2022-02-18 | 卡斯柯信号有限公司 | Receiver for 25HZ phase-sensitive track circuit |
| CN114088433A (en) * | 2021-12-24 | 2022-02-25 | 卡斯柯信号有限公司 | Track circuit analog load equipment |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201022047Y (en) * | 2007-01-11 | 2008-02-13 | 固安北信铁路信号有限公司 | Choke induction transformer for railway track circuit |
| US20130233979A1 (en) * | 2012-03-09 | 2013-09-12 | Jingwang ZHANG | Track circuit transceiver |
| CN103640597A (en) * | 2013-12-03 | 2014-03-19 | 合肥工大高科信息科技股份有限公司 | 2-vote-2 alternating current continuous type track circuit and detecting method thereof |
| CN203902578U (en) * | 2014-04-28 | 2014-10-29 | 中铁二院工程集团有限责任公司 | Phase detecting track circuit microelectronic receiving system |
| CN104297559A (en) * | 2014-11-07 | 2015-01-21 | 杭州凯达电力建设有限公司 | Device and method for measuring induced voltage |
| CN206575397U (en) * | 2017-03-22 | 2017-10-20 | 固安北信铁路信号有限公司 | A kind of new 25Hz track circuits interior sending ending equipment |
| CN207826263U (en) * | 2018-01-31 | 2018-09-07 | 上海亨钧科技股份有限公司 | A kind of contactless whole electronic computer signal interlocking 25HZ orbits controlling modules |
-
2018
- 2018-12-27 CN CN201811611396.8A patent/CN109606424B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201022047Y (en) * | 2007-01-11 | 2008-02-13 | 固安北信铁路信号有限公司 | Choke induction transformer for railway track circuit |
| US20130233979A1 (en) * | 2012-03-09 | 2013-09-12 | Jingwang ZHANG | Track circuit transceiver |
| CN103640597A (en) * | 2013-12-03 | 2014-03-19 | 合肥工大高科信息科技股份有限公司 | 2-vote-2 alternating current continuous type track circuit and detecting method thereof |
| CN203902578U (en) * | 2014-04-28 | 2014-10-29 | 中铁二院工程集团有限责任公司 | Phase detecting track circuit microelectronic receiving system |
| CN104297559A (en) * | 2014-11-07 | 2015-01-21 | 杭州凯达电力建设有限公司 | Device and method for measuring induced voltage |
| CN206575397U (en) * | 2017-03-22 | 2017-10-20 | 固安北信铁路信号有限公司 | A kind of new 25Hz track circuits interior sending ending equipment |
| CN207826263U (en) * | 2018-01-31 | 2018-09-07 | 上海亨钧科技股份有限公司 | A kind of contactless whole electronic computer signal interlocking 25HZ orbits controlling modules |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114088433A (en) * | 2021-12-24 | 2022-02-25 | 卡斯柯信号有限公司 | Track circuit analog load equipment |
| CN114088433B (en) * | 2021-12-24 | 2024-04-30 | 卡斯柯信号有限公司 | Rail circuit simulation load equipment |
| CN114056380A (en) * | 2021-12-27 | 2022-02-18 | 卡斯柯信号有限公司 | Receiver for 25HZ phase-sensitive track circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109606424B (en) | 2020-12-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103033715B (en) | Operating status detection system for area equipment in converting station | |
| CN205353281U (en) | Modified direct current system insulation monitoring and warning device | |
| CN106093700A (en) | A kind of fault wave recording device based on voltage traveling wave principle and distance-finding method | |
| CN203561717U (en) | Distribution board direct current ground connection alarm device | |
| CN203561511U (en) | Device and system for locomotive test | |
| CN109606424A (en) | A kind of track circuit electronic receiver | |
| CN106646079A (en) | Online direct-current grounding monitoring system for power distribution automation terminal | |
| CN105488643A (en) | Rail traffic maintenance operation safety interlocking management system and method | |
| CN111342651A (en) | Alternating current-direct current dual-input card-insertion type time system equipment power supply with electromagnetic compatibility and redundant output | |
| CN203902578U (en) | Phase detecting track circuit microelectronic receiving system | |
| CN207096346U (en) | A kind of online phase checking device of high-tension switch cabinet | |
| CN108196135A (en) | A kind of high direct voltage electrified display interlock apparatus | |
| CN205911734U (en) | Prevent protection device of quick earthing switch mistake combined floodgate | |
| CN104142648A (en) | Management and control terminal of urban rail traffic low-voltage power distribution system | |
| CN110460155A (en) | The line feed terminals and its fault monitoring method for having image procossing and comparison function | |
| CN206684931U (en) | Elevator data transmission system | |
| CN206740928U (en) | A kind of disconnecting switch remote wireless monitoring system | |
| CN205622322U (en) | Distribution monitor information collection system | |
| CN205863765U (en) | Double bus scheme structure based on disconnecting switch segmentation in GIS power distribution equipment | |
| CN209674217U (en) | A kind of security system based on POE power supply | |
| CN209593105U (en) | A kind of monitoring system of non-contact power supply system | |
| CN207150261U (en) | A kind of communication power supply supervising device | |
| CN107651550B (en) | A kind of staircase malfunction monitoring and prior-warning device | |
| CN206023599U (en) | A kind of intelligent threephase switch power supply | |
| CN207053251U (en) | A kind of grid entry point supervising device of family expenses photovoltaic generating system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |