CN207559988U - Railway track broken rail monitors the carrier equipment of system - Google Patents
Railway track broken rail monitors the carrier equipment of system Download PDFInfo
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- CN207559988U CN207559988U CN201721242809.0U CN201721242809U CN207559988U CN 207559988 U CN207559988 U CN 207559988U CN 201721242809 U CN201721242809 U CN 201721242809U CN 207559988 U CN207559988 U CN 207559988U
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Abstract
The utility model discloses a kind of carrier equipment of railway track broken rail monitoring system, and the carrier equipment includes signal receiving circuit, oscillation source circuit, carrier modulation demodulation control circuit, local oscillation circuit, receives the small value detection circuit of level, carrier wave input circuit, carrier wave demodulation output circuit；The signal receiving circuit connects carrier modulation demodulation control circuit, local oscillation circuit, receives the small value detection circuit of level, carrier wave input circuit, carrier wave demodulation output circuit respectively；Carrier modulation demodulation control circuit connection oscillation source circuit.The utility model proposes rail broken rail monitoring system transceiver and manager, as rail broken rail monitoring system a part, rail broken rail can be monitored in real time, it is ensured that the safety of railway traffic.
Description
Technical field
The utility model belongs to railway communication technical field, is related to a kind of rail broken rail monitoring system more particularly to one kind
Railway track broken rail monitors the carrier equipment of system.
Background technology
With the fast development of China railways cause and the raising of train speed, safety and efficiency to railway transportation propose
Higher requirement.Therefore, real-time broken rail detection is carried out to the rail on railway operation line, it is ensured that broken rail disclosure satisfy that when occurring
The principle of " one safety of failure " becomes an important topic.Existing high ferro and general fast railway automatic block district, railway signal
Equipment is all mounted with track circuit, realizes rail Broken rail detection.But Semi-automatic Block District section is only in home signal
1200 meters~1400 meters of machine foreign side is mounted with close to track circuit, from station close at track circuit receiving end to neighbor stations
Entire section is fitted without track circuit close at track circuit receiving end, and broken rail, which occurs, for rail can not just be checked, completely
It goes to find by personnel's walkaround inspection.
Rail directly affects train transportation safety as ground base equipment, working condition quality.Train passes through fracture
Rail can bring huge security risk, the generation of great driving accident such as result even in derailing, overturn.Because broken rail causes train
It derails, overturn great driving accident and teach that, reinforcing rail fracture detection, to ensureing that it is particularly significant that safe train operation has
Meaning.
Therefore, it is necessary to develop non-blocking section broken rail monitoring system, real-time online is detected rail broken rail, occurs
During broken rail and alarm, prevent rail broken rail from causing train derailing disturbing accident.
First, based on track circuit principle
Real-time broken rail detection method based on track circuit principle is noteworthy characterized by:Using rail as circuit, pass through biography
It passs and receives electric signal (voltage or electric current) to determine whether broken rail occurs.As track circuit, although based on track circuit
The real-time broken rail detection method of principle have the shortcomings that be influenced by railway roadbed condition it is big, but because its principle and technology are relatively ripe
And show stronger feasibility.
2nd, traction current broken rail detection method
Traction current broken rail detection method is used based on complete traction return current circuits.Electricity in any one steel rail
Stream is only blocked in rail fracture.Under any circumstance, abnormal electric current is bypassed disconnected by the shorting stub of adjacent rail
It splits place and is back to substation.The out-of-balance current thereby resulted in can be detected.But it relies on the presence of traction current, i.e., can only
Detect the broken rail between train and electric substation on traction substation supply arm.In addition, traction current real-time broken rail detection method is real
Existing difficulty is that (train load under clear various loading condictions must be analyzed according to the traction return current circuits network of actual track
Size, train position) traction current distribution situation on all rail.
3rd, optical fiber real-time broken rail detection method
Optical fiber real-time broken rail detection side is detected with the standard single-mode fiber being affixed on track by epoxy resin adhesive tape.Light
A fine termination light source, the other end is receiver.If rail fractures, optical fiber will rupture therewith, and light cannot
Receiver is reached, thus judges broken rail occurs, as shown in the figure
Optical fiber broken rail detection method is proved to be very reliable broken rail detection method, but its installation and maintenance work are difficult
It is difficult to use in practice.
Similar optical cable, using a cable and an one steel rail as sense channel, loop current changes bright during rail broken rail
Aobvious, principle is very simple, but laying cable work is very huge along the line, it is difficult to practice.
4th, ultrasonic wave broken rail detects
Sound wave generating device, left and right ends installation acoustic receiver device separated by a distance are filled at the middle part of track section.
Is isolated after emitter sends out sound wave by nature attenuation in adjacent interval signal, if sound wave propagates chances along rail to the left and right
To having crack or broken rail, the signal that reception device is not received or received significantly reduces, and can be determined that rail is accordingly
It is no to fracture or damaged.
Ultrasonic wave, which will encounter weld seam, to have portion of energy to reflect back, and operating distance is limited.Increase detecting distance, it is necessary to add
Big transmitter power, it is very unfavorable to battery supply set.
In view of this, nowadays there is an urgent need to design a kind of railway track broken rail monitoring mode, to overcome existing rail iron
Drawbacks described above existing for the monitoring of rail broken rail.
Utility model content
Technical problem to be solved in the utility model is：A kind of carrier equipment of rail broken rail monitoring system is provided, it can
Accessory transceiver monitors rail broken rail in real time, it is ensured that the safety of railway traffic.
In order to solve the above technical problems, the utility model adopts the following technical solution：
A kind of carrier equipment of railway track broken rail monitoring system, the carrier equipment include signal receiving circuit, oscillation
Source circuit, local oscillation circuit, receives the small value detection circuit of level, carrier wave input circuit, carrier wave solution at carrier modulation demodulation control circuit
Adjust output circuit；
The signal receiving circuit connects carrier modulation demodulation control circuit, local oscillation circuit, receives the small value inspection of level respectively
Slowdown monitoring circuit, carrier wave input circuit, carrier wave demodulation output circuit；Carrier modulation demodulation control circuit connection oscillation source circuit；
The signal receiving circuit includes the one zero two chip U102, frequency discriminator Y103, ceramic filter Y102, the 1st
Four capacitance C104, the one zero five capacitance C105, the one zero six capacitance C106, the one zero nine capacitance C109, several resistance；
The 4th pin connection supply voltage VCC of the one zero two chip U102, the third of the one zero two chip U102
The first end of pin connection ceramic filter Y102, the 5th pin connection ceramic filter Y102's of the one zero two chip U102
5th end, the second end of ceramic filter Y102, third end, the 4th end connection supply voltage VCC；
The 6th pin of one zero two chip U102 connects the second end of the one zero six capacitance C106, the one zero two chip
The 7th pin of U102 connects the second end of the one zero five capacitance C105, the 8th pin connection first of the one zero two chip U102
The second end of 03 resistance R103, the second end of frequency discriminator Y103；The first end of one zero six capacitance C106, the one zero five capacitance
The first end of C105, the first end of the one zero three resistance R103, the first end of frequency discriminator Y103 connection supply voltage VCC, first
The second end of 02 resistance R102, the first end of the one zero nine capacitance C109, the first end of the one zero four capacitance C104；One zero
The first end connection 5V supply voltages of two resistance R102, the second end of the one zero nine capacitance C109, the one zero four capacitance C104
Second end is grounded；
The first pin connection local circuit of one zero two chip U102, the 9th pin connection of the one zero two chip U102
Carrier wave demodulation output circuit, the tenth three-prong connection reception small value detection circuit of level of the one zero two chip U102, the one zero
The 15th pin ground connection of two chip U102, the 16th pin connection carrier wave input circuit of the one zero two chip U102；
The oscillation source circuit includes the one zero one crystal oscillator Y101, the one zero two capacitance C102, the one zero three capacitance C103；
The first end of the one zero one crystal oscillator Y101 connects the second end of the one zero two capacitance C102, and the of the one zero one crystal oscillator Y101
Two ends connect the second end of the one zero three capacitance C103, the first end of the one zero two capacitance C102, the one zero three capacitance C103
First end is grounded；
The carrier modulation demodulation control circuit includes the one zero one chip U101, the one zero one capacitance C101, the 1st
Eight capacitance C118, several resistance；
First pin of first chip is grounded by the one one eight capacitance C118；The one zero one chip U101's
4th pin by the second end of the one zero one capacitance C101 of the one zero four resistance R104 connections, the one zero one resistance R101
One end；The first end ground connection of one zero one capacitance C101, the second end connection 5V supply voltages of the one zero one resistance R101；
The local oscillation circuit includes the one one zero capacitance C110, the one one four capacitance C114, the first First Five-Year Plan capacitance C115, the
Six capacitance C116, the one one three resistance R113, the one one four resistance R114, the first First Five-Year Plan resistance R115 one by one；
The first pin of one zero two chip U102 connects the second end of the one one zero capacitance C110, the one one zero capacitance
The first end of C110 connects second end, the first end of the one one six capacitance C116 of the first First Five-Year Plan resistance R115, the first First Five-Year Plan electricity
Second end, the first end of the first First Five-Year Plan capacitance C115 of the one one four resistance R114 of first end connection of resistance R115, the one one four
The first end of resistance R114 connects the second end of the one one three resistance R113, the second end of the one one four capacitance C114, the 1st
The second end of five capacitance C115, the second end of the one one six capacitance C116 ground connection；
The small value detection circuit of reception level includes the resistance R111 one by one of the one zero seven capacitance C107, first；
The tenth three-prong of one zero two chip U102 connects the resistance one by one of the first end of the one zero seven capacitance C107, first
The first end of R111, the second end of the one zero seven capacitance C107, first one by one resistance R111 second end ground connection；
The carrier wave input circuit includes the one zero one diode D101, the one zero two diode D102, first electric one by one
Hold C111；The first end of the first capacitance C111 one by one of the 16th pin connection of one zero two chip U102, the first capacitance one by one
The cathode of the one zero one diode D101 of second end connection of C111, the anode of the one zero two diode D102, the one zero one two
The cathode ground connection of the anode of pole pipe D101, the one zero two diode D102；
The carrier wave demodulation output circuit includes the one one two capacitance C112, the one zero five resistance R105, the one zero eight electricity
Hinder R108, the one one zero resistance R110；
The 9th pin of one zero two chip U102 connects the first end of the one zero eight resistance R108, the one zero eight resistance
The second end of R108 connects first end, the first end of the one one zero resistance R110 of the one one two capacitance C112, the one one two electricity
Hold the second end ground connection of C112, the second end of the one one zero resistance R110 is grounded by the one zero five resistance R105.
A kind of carrier equipment of railway track broken rail monitoring system, the carrier equipment include signal receiving circuit, oscillation
Source circuit, local oscillation circuit, receives the small value detection circuit of level, carrier wave input circuit, carrier wave solution at carrier modulation demodulation control circuit
Adjust output circuit；
The signal receiving circuit connects carrier modulation demodulation control circuit, local oscillation circuit, receives the small value inspection of level respectively
Slowdown monitoring circuit, carrier wave input circuit, carrier wave demodulation output circuit；Carrier modulation demodulation control circuit connection oscillation source circuit.
The beneficial effects of the utility model are：The utility model proposes rail broken rail monitoring system transceiver and pipe
Device is managed, as a part for rail broken rail monitoring system, rail broken rail can be monitored in real time, it is ensured that the safety of railway traffic
Property.
Description of the drawings
Fig. 1 is the composition schematic diagram that the utility model broken rail monitors system carrier equipment.
Fig. 2 is the circuit diagram that the utility model broken rail monitors oscillation source circuit in system carrier equipment.
Fig. 3 is the circuit signal that the utility model broken rail monitors carrier wave adjustment demodulation control circuit in system carrier equipment
Figure.
Fig. 4 is the partial circuit schematic diagram that the utility model broken rail monitors system carrier equipment.
Fig. 5 is the principle schematic that the utility model semiautomatic block section rail broken rail monitors system.
Fig. 6 is the composition schematic diagram that the utility model semiautomatic block section rail broken rail monitors system.
Fig. 7 is the composition schematic diagram of transceiver in the rail broken rail monitoring system of the utility model semiautomatic block section.
Specific embodiment
The preferred embodiment of the utility model is described in detail below in conjunction with the accompanying drawings.
Embodiment one
Referring to Fig. 1, the utility model discloses a kind of carrier equipment of railway track broken rail monitoring system, carrier equipment packet
It includes signal receiving circuit 1, oscillation source circuit 7, carrier modulation demodulation control circuit 5, local oscillation circuit 2, receive the small value detection of level
Circuit 6, carrier wave input circuit 3, carrier wave demodulation output circuit 4.
The signal receiving circuit 1 connects carrier modulation demodulation control circuit 5, local oscillation circuit 2, receives the small value of level respectively
Detection circuit 6, carrier wave input circuit, carrier wave demodulation output circuit；Carrier modulation demodulation control circuit connection oscillation source circuit.
Referring to Fig. 4, the signal receiving circuit includes the one zero two chip U102, frequency discriminator Y103, ceramic filter
It is Y102, the one zero four capacitance C104, the one zero five capacitance C105, the one zero six capacitance C106, the one zero nine capacitance C109, several
Resistance.
The 4th pin connection supply voltage VCC of the one zero two chip U102, the third of the one zero two chip U102
The first end of pin connection ceramic filter Y102, the 5th pin connection ceramic filter Y102's of the one zero two chip U102
5th end, the second end of ceramic filter Y102, third end, the 4th end connection supply voltage VCC.
The 6th pin of one zero two chip U102 connects the second end of the one zero six capacitance C106, the one zero two chip
The 7th pin of U102 connects the second end of the one zero five capacitance C105, the 8th pin connection first of the one zero two chip U102
The second end of 03 resistance R103, the second end of frequency discriminator Y103；The first end of one zero six capacitance C106, the one zero five capacitance
The first end of C105, the first end of the one zero three resistance R103, the first end of frequency discriminator Y103 connection supply voltage VCC, first
The second end of 02 resistance R102, the first end of the one zero nine capacitance C109, the first end of the one zero four capacitance C104；One zero
The first end connection 5V supply voltages of two resistance R102, the second end of the one zero nine capacitance C109, the one zero four capacitance C104
Second end is grounded.
The first pin connection local circuit of one zero two chip U102, the 9th pin connection of the one zero two chip U102
Carrier wave demodulation output circuit, the tenth three-prong connection reception small value detection circuit of level of the one zero two chip U102, the one zero
The 15th pin ground connection of two chip U102, the 16th pin connection carrier wave input circuit of the one zero two chip U102.
{ oscillation source circuit }
Referring to Fig. 2, the oscillation source circuit includes the one zero one crystal oscillator Y101, the one zero two capacitance C102, the 1st
Three capacitance C103；The second end of the one zero two capacitance C102 of first end connection of the one zero one crystal oscillator Y101, the one zero one
The second end of crystal oscillator Y101 connects the second end of the one zero three capacitance C103, the first end of the one zero two capacitance C102, the 1st
The first end ground connection of three capacitance C103.
{ carrier modulation demodulation control circuit }
Referring to Fig. 3, the carrier modulation demodulation control circuit includes the one zero one chip U101, the one zero one capacitance
C101, the one one eight capacitance C118, several resistance.
First pin of first chip is grounded by the one one eight capacitance C118；The one zero one chip U101's
4th pin by the second end of the one zero one capacitance C101 of the one zero four resistance R104 connections, the one zero one resistance R101
One end；The first end ground connection of one zero one capacitance C101, the second end connection 5V supply voltages of the one zero one resistance R101.
{ local oscillation circuit }
As shown in figure 4, the local oscillation circuit includes the one one zero capacitance C110, the one one four capacitance C114, the first First Five-Year Plan
Capacitance C115, the one one six capacitance C116, the one one three resistance R113, the one one four resistance R114, the first First Five-Year Plan resistance R115.
The first pin of one zero two chip U102 connects the second end of the one one zero capacitance C110, the one one zero capacitance
The first end of C110 connects second end, the first end of the one one six capacitance C116 of the first First Five-Year Plan resistance R115, the first First Five-Year Plan electricity
Second end, the first end of the first First Five-Year Plan capacitance C115 of the one one four resistance R114 of first end connection of resistance R115, the one one four
The first end of resistance R114 connects the second end of the one one three resistance R113, the second end of the one one four capacitance C114, the 1st
The second end of five capacitance C115, the second end of the one one six capacitance C116 ground connection.
{ receiving the small value detection circuit of level }
As shown in figure 4, the small value detection circuit of reception level includes the resistance one by one of the one zero seven capacitance C107, first
R111.The tenth three-prong of one zero two chip U102 connects the resistance one by one of the first end of the one zero seven capacitance C107, first
The first end of R111, the second end of the one zero seven capacitance C107, first one by one resistance R111 second end ground connection.
{ carrier wave input circuit }
As shown in figure 4, the carrier wave input circuit include the one zero one diode D101, the one zero two diode D102,
First capacitance C111 one by one；The first end of the first capacitance C111 one by one of the 16th pin connection of one zero two chip U102, the
The second end of one capacitance C111 one by one connects the anode of the cathode of the one zero one diode D101, the one zero two diode D102,
The anode of one zero one diode D101, the cathode ground connection of the one zero two diode D102.
{ carrier wave demodulation output circuit }
As shown in figure 4, the carrier wave demodulation output circuit include the one one two capacitance C112, the one zero five resistance R105,
One zero eight resistance R108, the one one zero resistance R110.The 9th pin of one zero two chip U102 connects the one zero eight resistance
The first end of R108, the second end of the one zero eight resistance R108 connect the first end of the one one two capacitance C112, the one one zero electricity
The first end of R110, the second end ground connection of the one one two capacitance C112 are hindered, the second end of the one one zero resistance R110 passes through first
05 resistance R105 are grounded.
Embodiment two
The utility model carrier equipment is used in the transceiver of railway track broken rail monitoring system, referring to Fig. 7, the receipts
Hair device includes main controller circuit, transmitting-receiving indicator light circuit, frequency selection circuit, carrier signal modulation circuit, lightning protection detection circuit, connects
Receive the big value detection circuit of level, device id identification circuit, oscillation source circuit, transmission power detection circuit, constant-current source circuit, power supply
Switch monitors circuit, voltage stabilizing linear power source circuit, carrier equipment.Certainly, part transceiver can also increase compared to normal transceiver
Add 485 telecommunication circuits, GPRS communication module.
The main controller circuit connects transmitting-receiving indicator light circuit, lightning protection detection circuit, receives the big value detection of level respectively
Circuit, device id identification circuit, oscillation source circuit, transmission power detection circuit, power switch observation circuit, carrier equipment.Institute
It states frequency selection circuit to connect carrier signal modulation circuit respectively, receive the big value detection circuit of level, the connection of carrier signal modulation circuit
Transmission power detection circuit, transmission power detection circuit connection constant-current source circuit, the connection voltage stabilizing of power switch observation circuit are linear
Power circuit.The concrete composition of transceiver, applicant are protected by other patents, are not repeated here.
Here the usage scenario of the utility model is substantially introduced.Above-mentioned transceiver is monitored as railway track broken rail
A part for system carries out implementation monitoring to rail broken rail.
Referring to Fig. 6, rail to be monitored is divided at least rail monitoring section, the both ends difference in each rail monitoring section
Equipped with insulation joint (can not also set insulation joint), the both ends in each rail monitoring section, which are respectively equipped with short-circuit line, (can not also set
Put short-circuit line), two short-circuit lines connect the rail of left and right two, and the tie rod between rail is insulated gage rod.It is not provided with short circuit
During line, the 1st transceiver, n-th transceiver at both ends connect the both ends in monitoring section respectively.
Each rail monitoring section, which is distributed, sets several transceivers, and the distance of rail (refers to adjacent transmitting-receiving between adjacent transceivers
The distance between device and rail junction) it is 0.5~1km, the 1st transceiver, the n-th transceiver (refer to the distance of corresponding short-circuit line
The distance of transceiver and rail junction and short-circuit line between rail junction) it is 40~80m.1st transceiver is in addition to conduct
Outside the transceiver of first transmission data, also have the function of that management module uploads data to server；N-th transceiver also has
Management module uploads the function (can certainly be other transceivers to server transmission data) of data to server.
Referring to Fig. 5, block rail break monitoring is that rail is worked as conducting wire, ensure to pass through certain carrier signal per one steel rail
(carrier signal is sent by transceiver, received) in the present embodiment, passes through the carrier communication transmission mode of centre frequency 13.5KHz
It is monitored rail broken rail.When rail fracture, carrier signal receives level, launching electrical level generates variation, and acquired record is simultaneously
Sending relevant information step by step, (the 1st transceiver can only receive the 2nd transceiver, the 3rd transmitting-receiving to the n-th transceiver or the 1st transceiver
The data that device is sent, naturally it is also possible to receive the data of other transceivers), GPRS is passed through by the 1st transceiver or the n-th transceiver
It is sent to server analysis processing.
Referring to Fig. 6, the broken rail monitoring system includes several transceivers, control centre.The control centre includes clothes
Business device, at least a client, each client are connect with server；Each transceiver is connected by rail for conducting wire, as management mould
The transceiver of block carries out telecommunication with server；Management module is serviced by TCP, and the data of reception are sent to server,
Server carries out Data Analysis Services, and handling result is shown on the client.
The specific work process of transceiver, applicant are protected by other patent applications, not repeated here.
In conclusion the utility model proposes railway track broken rail monitoring system carrier equipment, can accessory transceiver
Rail broken rail is monitored in real time, it is ensured that the safety of railway traffic.
Here the utility model description and application be illustrative, be not wishing to the scope of the utility model being limited in
It states in embodiment.The deformation and change of embodiments disclosed herein are possible, for the ordinary skill people of those this fields
The replacement of embodiment and equivalent various parts are well known for member.It should be appreciated by the person skilled in the art that not taking off
In the case of spirit or essential characteristics from the utility model, the utility model can in other forms, structure, arrangement, ratio,
And it is realized with other components, material and component.It, can be to this in the case where not departing from the scope of the utility model and spirit
In disclosed embodiment carry out other deformations and change.
Claims (9)
1. a kind of carrier equipment of railway track broken rail monitoring system, which is characterized in that the carrier equipment is received including signal
Circuit, carrier modulation demodulation control circuit, local oscillation circuit, receives the small value detection circuit of level, carrier wave input electricity at oscillation source circuit
Road, carrier wave demodulation output circuit；
The signal receiving circuit connects carrier modulation demodulation control circuit, local oscillation circuit, receives the small value detection electricity of level respectively
Road, carrier wave input circuit, carrier wave demodulation output circuit；Carrier modulation demodulation control circuit connection oscillation source circuit；
The signal receiving circuit includes the one zero two chip U102, frequency discriminator Y103, ceramic filter Y102, the one zero four electricity
Hold C104, the one zero five capacitance C105, the one zero six capacitance C106, the one zero nine capacitance C109, several resistance；
The 4th pin connection supply voltage VCC of the one zero two chip U102, the third pin of the one zero two chip U102
The first end of ceramic filter Y102 is connected, the 5th pin of the one zero two chip U102 connects the 5th of ceramic filter Y102 the
End, the second end of ceramic filter Y102, third end, the 4th end connection supply voltage VCC；
The 6th pin of one zero two chip U102 connects the second end of the one zero six capacitance C106, the one zero two chip U102's
7th pin connects the second end of the one zero five capacitance C105, the one zero three electricity of the 8th pin connection of the one zero two chip U102
Hinder second end, the second end of frequency discriminator Y103 of R103；The first end of one zero six capacitance C106, the one zero five capacitance C105
First end, the first end of the one zero three resistance R103, the first end of frequency discriminator Y103 connection supply voltage VCC, the one zero two electricity
Hinder the second end of R102, the first end of the one zero nine capacitance C109, the first end of the one zero four capacitance C104；One zero two resistance
The first end connection 5V supply voltages of R102, the second end of the one zero nine capacitance C109, the second end of the one zero four capacitance C104
Ground connection；
The first pin connection local circuit of one zero two chip U102, the 9th pin connection carrier wave of the one zero two chip U102
Output circuit is demodulated, the tenth three-prong connection of the one zero two chip U102 receives the small value detection circuit of level, the one zero two core
The 15th pin ground connection of piece U102, the 16th pin connection carrier wave input circuit of the one zero two chip U102；
The oscillation source circuit includes the one zero one crystal oscillator Y101, the one zero two capacitance C102, the one zero three capacitance C103；It is described
The first end of one zero one crystal oscillator Y101 connects the second end of the one zero two capacitance C102, the second end of the one zero one crystal oscillator Y101
Connect the second end of the one zero three capacitance C103, the first end of the one zero two capacitance C102, the first of the one zero three capacitance C103
End ground connection；
The carrier modulation demodulation control circuit includes the one zero one chip U101, the one zero one capacitance C101, the one one eight electricity
Hold C118, several resistance；
The first pin of the one zero one chip U101 is grounded by the one one eight capacitance C118；One zero one chip
Second end of the 4th pin of U101 by the one zero one capacitance C101 of the one zero four resistance R104 connections, the one zero one resistance
The first end of R101；The first end ground connection of one zero one capacitance C101, the second end connection 5V power supplys of the one zero one resistance R101
Voltage；
The local oscillation circuit includes the one one zero capacitance C110, the one one four capacitance C114, the first First Five-Year Plan capacitance C115, the 1st
Six capacitance C116, the one one three resistance R113, the one one four resistance R114, the first First Five-Year Plan resistance R115；
The first pin of one zero two chip U102 connects the second end of the one one zero capacitance C110, the one one zero capacitance C110's
First end connects second end, the first end of the one one six capacitance C116 of the first First Five-Year Plan resistance R115, the first First Five-Year Plan resistance R115
First end connect the one one four resistance R114 second end, the first end of the first First Five-Year Plan capacitance C115, the one one four resistance
The first end of R114 connects the second end of the one one three resistance R113, the second end of the one one four capacitance C114, the first First Five-Year Plan electricity
Hold second end, the second end of the one one six capacitance C116 ground connection of C115；
The small value detection circuit of reception level includes the resistance R111 one by one of the one zero seven capacitance C107, first；
The tenth three-prong of one zero two chip U102 connects the resistance R111 one by one of the first end of the one zero seven capacitance C107, first
First end, the second end of the one zero seven capacitance C107, first one by one resistance R111 second end ground connection；
The carrier wave input circuit includes the capacitance one by one of the one zero one diode D101, the one zero two diode D102, first
C111；The first end of the first capacitance C111 one by one of the 16th pin connection of one zero two chip U102, the first capacitance one by one
The cathode of the one zero one diode D101 of second end connection of C111, the anode of the one zero two diode D102, the one zero one two
The cathode ground connection of the anode of pole pipe D101, the one zero two diode D102；
The carrier wave demodulation output circuit includes the one one two capacitance C112, the one zero five resistance R105, the one zero eight resistance
R108, the one one zero resistance R110；
The 9th pin of one zero two chip U102 connects the first end of the one zero eight resistance R108, the one zero eight resistance R108's
Second end connects first end, the first end of the one one zero resistance R110 of the one one two capacitance C112, the one one two capacitance C112
Second end ground connection, the second end of the one one zero resistance R110 is grounded by the one zero five resistance R105.
2. a kind of carrier equipment of railway track broken rail monitoring system, which is characterized in that the carrier equipment is received including signal
Circuit, carrier modulation demodulation control circuit, local oscillation circuit, receives the small value detection circuit of level, carrier wave input electricity at oscillation source circuit
Road, carrier wave demodulation output circuit；
The signal receiving circuit connects carrier modulation demodulation control circuit, local oscillation circuit, receives the small value detection electricity of level respectively
Road, carrier wave input circuit, carrier wave demodulation output circuit；Carrier modulation demodulation control circuit connection oscillation source circuit.
3. the carrier equipment of railway track broken rail monitoring system according to claim 2, it is characterised in that：
The signal receiving circuit includes the one zero two chip U102, frequency discriminator Y103, ceramic filter Y102, the one zero four electricity
Hold C104, the one zero five capacitance C105, the one zero six capacitance C106, the one zero nine capacitance C109, several resistance；
The 4th pin connection supply voltage VCC of the one zero two chip U102, the third pin of the one zero two chip U102
The first end of ceramic filter Y102 is connected, the 5th pin of the one zero two chip U102 connects the 5th of ceramic filter Y102 the
End, the second end of ceramic filter Y102, third end, the 4th end connection supply voltage VCC；
The 6th pin of one zero two chip U102 connects the second end of the one zero six capacitance C106, the one zero two chip U102's
7th pin connects the second end of the one zero five capacitance C105, the one zero three electricity of the 8th pin connection of the one zero two chip U102
Hinder second end, the second end of frequency discriminator Y103 of R103；The first end of one zero six capacitance C106, the one zero five capacitance C105
First end, the first end of the one zero three resistance R103, the first end of frequency discriminator Y103 connection supply voltage VCC, the one zero two electricity
Hinder the second end of R102, the first end of the one zero nine capacitance C109, the first end of the one zero four capacitance C104；One zero two resistance
The first end connection 5V supply voltages of R102, the second end of the one zero nine capacitance C109, the second end of the one zero four capacitance C104
Ground connection；
The first pin connection local circuit of one zero two chip U102, the 9th pin connection carrier wave of the one zero two chip U102
Output circuit is demodulated, the tenth three-prong connection of the one zero two chip U102 receives the small value detection circuit of level, the one zero two core
The 15th pin ground connection of piece U102, the 16th pin connection carrier wave input circuit of the one zero two chip U102.
4. the carrier equipment of railway track broken rail monitoring system according to claim 2, it is characterised in that：
The oscillation source circuit includes the one zero one crystal oscillator Y101, the one zero two capacitance C102, the one zero three capacitance C103；It is described
The first end of one zero one crystal oscillator Y101 connects the second end of the one zero two capacitance C102, the second end of the one zero one crystal oscillator Y101
Connect the second end of the one zero three capacitance C103, the first end of the one zero two capacitance C102, the first of the one zero three capacitance C103
End ground connection.
5. the carrier equipment of railway track broken rail monitoring system according to claim 2, it is characterised in that：
The carrier modulation demodulation control circuit includes the one zero one chip U101, the one zero one capacitance C101, the one one eight electricity
Hold C118, several resistance；
The first pin of the one zero one chip U101 is grounded by the one one eight capacitance C118；One zero one chip
Second end of the 4th pin of U101 by the one zero one capacitance C101 of the one zero four resistance R104 connections, the one zero one resistance
The first end of R101；The first end ground connection of one zero one capacitance C101, the second end connection 5V power supplys of the one zero one resistance R101
Voltage.
6. the carrier equipment of railway track broken rail monitoring system according to claim 2, it is characterised in that：
The local oscillation circuit includes the one one zero capacitance C110, the one one four capacitance C114, the first First Five-Year Plan capacitance C115, the 1st
Six capacitance C116, the one one three resistance R113, the one one four resistance R114, the first First Five-Year Plan resistance R115；
The first pin of one zero two chip U102 connects the second end of the one one zero capacitance C110, the one one zero capacitance C110's
First end connects second end, the first end of the one one six capacitance C116 of the first First Five-Year Plan resistance R115, the first First Five-Year Plan resistance R115
First end connect the one one four resistance R114 second end, the first end of the first First Five-Year Plan capacitance C115, the one one four resistance
The first end of R114 connects the second end of the one one three resistance R113, the second end of the one one four capacitance C114, the first First Five-Year Plan electricity
Hold second end, the second end of the one one six capacitance C116 ground connection of C115.
7. the carrier equipment of railway track broken rail monitoring system according to claim 2, it is characterised in that：
The small value detection circuit of reception level includes the resistance R111 one by one of the one zero seven capacitance C107, first；
The tenth three-prong of one zero two chip U102 connects the resistance R111 one by one of the first end of the one zero seven capacitance C107, first
First end, the second end of the one zero seven capacitance C107, first one by one resistance R111 second end ground connection.
8. the carrier equipment of railway track broken rail monitoring system according to claim 2, it is characterised in that：
The carrier wave input circuit includes the capacitance one by one of the one zero one diode D101, the one zero two diode D102, first
C111；The first end of the first capacitance C111 one by one of the 16th pin connection of one zero two chip U102, the first capacitance one by one
The cathode of the one zero one diode D101 of second end connection of C111, the anode of the one zero two diode D102, the one zero one two
The cathode ground connection of the anode of pole pipe D101, the one zero two diode D102.
9. the carrier equipment of railway track broken rail monitoring system according to claim 2, it is characterised in that：
The carrier wave demodulation output circuit includes the one one two capacitance C112, the one zero five resistance R105, the one zero eight resistance
R108, the one one zero resistance R110；
The 9th pin of one zero two chip U102 connects the first end of the one zero eight resistance R108, the one zero eight resistance R108's
Second end connects first end, the first end of the one one zero resistance R110 of the one one two capacitance C112, the one one two capacitance C112
Second end ground connection, the second end of the one one zero resistance R110 is grounded by the one zero five resistance R105.
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| CN201721242809.0U CN207559988U (en) | 2017-09-26 | 2017-09-26 | Railway track broken rail monitors the carrier equipment of system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110834653A (en) * | 2019-10-15 | 2020-02-25 | 上海新海信通信息技术有限公司 | Urban rail transit steel rail broken rail monitoring system and method |
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2017
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110834653A (en) * | 2019-10-15 | 2020-02-25 | 上海新海信通信息技术有限公司 | Urban rail transit steel rail broken rail monitoring system and method |
| CN110834653B (en) * | 2019-10-15 | 2024-03-19 | 上海新海信通信息技术有限公司 | Urban rail transit rail break monitoring system and method |
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