CN109375095A - A kind of semaphore monitoring system - Google Patents
A kind of semaphore monitoring system Download PDFInfo
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- CN109375095A CN109375095A CN201810995146.2A CN201810995146A CN109375095A CN 109375095 A CN109375095 A CN 109375095A CN 201810995146 A CN201810995146 A CN 201810995146A CN 109375095 A CN109375095 A CN 109375095A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/44—Testing lamps
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/58—Testing of lines, cables or conductors
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Abstract
The present invention provides a kind of semaphores to monitor system, including positive pole, the first electronic power switch, semaphore, the second electronic power switch and the power cathode being sequentially connected in series；The first observation circuit is provided between first electronic power switch and the semaphore；The second observation circuit is provided between second electronic power switch and the semaphore；First observation circuit includes: the first current sensor, the first relay, the first switch type relay and the first bleeder circuit；Second observation circuit includes: the second current sensor, the second relay, the second switch type relay and the second bleeder circuit.The present invention realizes the design of control monitoring integration, simplifies circuit structure.
Description
Technical field
The present invention relates to technical field of rail traffic, and in particular to a kind of semaphore monitoring system.
Background technique
In rail traffic, the control of semaphore is controlled by interlock system, is monitored by microcomputer monitoring equipment
's.The interlocking of all-electronin computer is a kind of interlocking realized based on electronic power switch device, is different from relay as switch
The interlock system of device.Wherein, power electronic devices includes solid-state relay, IGBT, thyristor etc..
Computer interlock system is a kind of security system, it is desirable that the security level with SIL-4.According to " the electricity of IEC 61508
Gas-to-electric/programmable electronic security system functional safety ", it needs to realize self-test to Primary Component at work, to ensure device
The availability of part will be oriented to safety when Primary Component fails.In the interlock system using relay as switching device, adopt
It just can know that other by detecting the state of wherein any one contact with the safety relay with forced guiding contact
The state of all contacts is to open or be closed.But for electronic power switch device, without such forced guiding machine
System.In the semaphore control of all-electronin computer interlock system, the general mode to electronic power switch units test is such as
Shown in Fig. 1.In Fig. 1, two electronic power switches control the anode and cathode of signal electromechanical source respectively, when two switches while closing
When conjunction, semaphore is lighted, and when wherein any one is disconnected, semaphore is all off.
Two are established to the main mechanism of the testing scheme of electronic power switch and passes through the same electronic power switch
Independent loop, one of them is control loop, another is measure loop.Measure loop is motivated by isolation test, electric power electricity
Sub switch and detection circuit composition.When working normally, isolation test excitation and detection circuit etc. do not work, and control back
Road can normally control semaphore.And when being detected to electronic power switch, an electronic power switch is only opened, so
Isolation test excitation afterwards issues pumping signal, judges electronic power switch so that whether detection circuit receives correct pumping signal
Whether normally open and close.
The major defect of this scheme is that device is various, and circuit is complicated, and each power electronic devices requires a set of independence
Isolation test excitation and detection circuit, it is also contemplated that measure loop will not be controlled the influence in circuit, and do not influence to control
Circuit processed.In addition, generally realizing control detection integration in the interlocking of existing all-electronin computer, reducing to microcomputer
The demand of detection system.But the defect of this scheme is that only Computerized monitor system is minimized at present, it is real on pcb board
It is existing, the scale of circuit is not effectively reduced.Moreover, current detection means, basic only to provide the data of electric current, data
Type is few.
Summary of the invention
For the defects in the prior art, the present invention provides a kind of semaphore monitoring system.
Specifically, the present invention the following technical schemes are provided:
The present invention provides a kind of semaphores to monitor system, and positive pole, the first power electronics including being sequentially connected in series are opened
Pass, semaphore, the second electronic power switch and power cathode；
Wherein, the first observation circuit is provided between first electronic power switch and the semaphore；Described
The second observation circuit is provided between second electronic power switch and the semaphore；
First observation circuit includes: the first current sensor, the first relay, the first switch type relay and first
Bleeder circuit；
The first end of first current sensor is connect with first electronic power switch, first current sense
The second end of device is connect with first node；
One end of first relay is connect with first node, and the other end is connect with second node；
The normally-closed contact of the first switch type relay is connect with first node, the first switch type relay it is normal
It opens contact to connect with second node, the common end of the first switch type relay connects after connecting with the first bleeder circuit with ground
It connects；
Second observation circuit includes: the second current sensor, the second relay, the second switch type relay and second
Bleeder circuit；
The first end of second current sensor is connect with second electronic power switch, second current sense
The second end of device is connect with third node；
One end of second relay is connect with third node, and the other end is connect with fourth node；
The normally-closed contact of the second switch type relay is connect with third node, the second switch type relay it is normal
It opens contact to connect with fourth node, the common end of the second switch type relay connects after connecting with the second bleeder circuit with ground
It connects.
Further, first bleeder circuit includes two or more concatenated resistance；The second partial pressure electricity
Road includes two or more concatenated resistance.
Further, the system also includes electric energy metering modules；
The electric energy metering module is used for and first current sensor, second current sensor, described first
Bleeder circuit is connected with second bleeder circuit, for receiving and showing first current sensor and second electric current
The electric current of sensor acquisition, and calculate the partial pressure information on first bleeder circuit and second bleeder circuit.
Further, the electric energy metering module be also used to electric current based on the received and the partial pressure information that is calculated into
One step calculates active power and reactive power.
Further, first current sensor and second current sensor be current transformer, Rogowski coil,
Any one in sampling resistor and Hall sensor.
As shown from the above technical solution, semaphore provided by the invention monitors system, including be sequentially connected in series positive pole,
First electronic power switch, semaphore, the second electronic power switch and power cathode；In first electronic power switch and institute
It states and is provided with the first observation circuit between semaphore；Is provided between second electronic power switch and the semaphore
Two observation circuits；First observation circuit include: the first current sensor, the first relay, the first switch type relay and
First bleeder circuit；The first end of first current sensor is connect with first electronic power switch, first electricity
The second end of flow sensor is connect with first node；One end of first relay is connect with first node, the other end and
The connection of two nodes；The normally-closed contact of the first switch type relay is connect with first node, the first switch type relay
Normally opened contact connect with second node, the common end of the first switch type relay connect with the first bleeder circuit after with ground
Connection；Second observation circuit includes: the second current sensor, the second relay, the second switch type relay and second point
Volt circuit；The first end of second current sensor is connect with second electronic power switch, second current sense
The second end of device is connect with third node；One end of second relay is connect with third node, the other end and fourth node
Connection；The normally-closed contact of the second switch type relay is connect with third node, the second switch type relay it is normally opened
Contact is connect with fourth node, and the common end of the second switch type relay is connected to ground after connecting with the second bleeder circuit.
Semaphore provided by the invention monitors system, and the design for realizing control monitoring integration simplifies electricity compared to the prior art
Line structure.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is the present invention
Some embodiments for those of ordinary skill in the art without creative efforts, can also basis
These attached drawings obtain other attached drawings.
Fig. 1 is in the prior art to the circuit theory schematic diagram of electronic power switch units test；
Fig. 2 is a kind of structural schematic diagram for the semaphore monitoring system that one embodiment of the invention provides；
Fig. 3 is another structural schematic diagram for the semaphore monitoring system that one embodiment of the invention provides.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, the technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
One embodiment of the invention provides a kind of semaphore monitoring system, referring to fig. 2, including the positive pole being sequentially connected in series
(110V exchange just), the first electronic power switch, semaphore, the second electronic power switch and power cathode (110V, which exchange, to be born)；
Wherein, the first observation circuit is provided between first electronic power switch and the semaphore；Described
The second observation circuit is provided between second electronic power switch and the semaphore；
First observation circuit includes: the first current sensor T1, the first relay S3, the first switch type relay S1
With the first bleeder circuit；The first end of the first current sensor T1 is connect with first electronic power switch, and described
The second end of one current sensor T1 is connect with first node；One end of the first relay S3 is connect with first node, separately
One end is connect with second node；The normally-closed contact of the first switch type relay S1 is connect with first node, and described first cuts
The normally opened contact of relay S1 of remodeling is connect with second node, the common end of the first switch type relay S1 and the first partial pressure
It is connected to ground after circuit series connection；
Second observation circuit includes: the second current sensor T2, the second relay S4, the second switch type relay S2
With the second bleeder circuit；The first end of the second current sensor T2 is connect with second electronic power switch, and described
The second end of two current sensor T2 is connect with third node；One end of the second relay S4 is connect with third node, separately
One end is connect with fourth node；The normally-closed contact of the second switch type relay S2 is connect with third node, and described second cuts
The normally opened contact of relay S2 of remodeling is connect with fourth node, the common end of the second switch type relay S2 and the second partial pressure
It is connected to ground after circuit series connection.
It should be noted that first current sensor and second current sensor can for current transformer,
The sensors such as Rogowski coil, sampling resistor or Hall sensor, to realize the sampling of electric current.In addition, it should be noted that, partial pressure
The design of circuit is in order to facilitate voltage sample.
It should be noted that semaphore monitoring system provided in this embodiment includes two kinds of working conditions: control and detection.
Control refers to lighting and extinguishing for control semaphore.Detection refers to electronic power switch, semaphore filament, cable swinging cross etc. into
Row detection.Specifically, work as S3, when S4 is closed, the contact of S1 and S2 are shorted, and system is in state of a control at this time.Work as S3, S4 is disconnected
When opening, system is in detecting state.It is shared to control and monitor two according to the different switching state of S1 and S2 under detecting state
Kind function.For example, disconnecting S3, S1 and S2 are switched to control function (as shown in Fig. 2, namely S1 by the contact of two relays of S4
Normally-closed contact is switched to the switching knife of S2), it is closed an electronic power switch (such as the first electronic power switch), is read at this time
The current value in voltage value and circuit on first bleeder circuit, if voltage value is 110V virtual value, and current value is 0
(the first electronic power switch of closure, safety switch are located at control function, monitor electronic power switch integrality, and by the first electricity
The resistance value of the circuit of power electronic switch and the first bleeder circuit composition is very big, and electric current very little is similar to 0.), then illustrate
One electronic power switch is effectively closed, working properly；The first electronic power switch is disconnected, at this moment voltage value and current value are equal
It (after disconnecting the first electronic power switch, is established without circuit, so voltage and current is 0), to illustrate that the first power electronics is opened for 0
Pass is effectively disconnected, working properly.Furthermore, it is possible to once be closed all electronic power switches, above-mentioned process is executed, so that it may
To realize the detection of all electronic power switches.
By content above it is found that semaphore provided in this embodiment monitors system, by special circuit design and after
The cooperating of electric appliance and switch type relay realizes and controls and monitors integrated design, compared to the prior art in need
The mode in two circuits of control loop and measure loop is separately provided, the present embodiment significantly simplifies circuit, realizes an electricity
Road multiple functions.
Based on above content, in a kind of optional embodiment of the present embodiment, referring to Fig. 3, first bleeder circuit
Including two or more concatenated resistance；Second bleeder circuit includes two or more concatenated resistance.
Based on above content, in a kind of optional embodiment of the present embodiment, referring to fig. 2, and the system also includes: electricity
It can metering module；
The electric energy metering module is used for and first current sensor, second current sensor, described first
Bleeder circuit is connected with second bleeder circuit, for receiving and showing first current sensor and second electric current
The electric current of sensor acquisition, and calculate the partial pressure information on first bleeder circuit and second bleeder circuit.
It is understood that the electric energy metering module is calculating first bleeder circuit and second bleeder circuit
On partial pressure information when, can be according to dividing the progress information of voltage sampling of directly proportional to the resistance value of resistance this thought.
Based on above content, in a kind of optional embodiment of the present embodiment, the electric energy metering module is also used to root
Active power and reactive power are calculated according to received current information and the partial pressure information being calculated.
It should be noted that in figure 2 and figure 3, S1 and S2 are the switch type safety relays of two FORM-C, realize system
The switching for the state of a control and detecting state of uniting.State of a control refers to lighting and extinguishing for control semaphore.Detecting state is mainly examined
Survey whether effective, light signal the filament of electronic power switch occurs fracture of wire, whether LED signal machine internal transformer is complete
Whether whole property and more lamp position semaphores cause swinging cross, open circuit etc. due to cable failure.S3 and S4 be control semaphore light or
The safety type relay of extinguishing.T1 and T2 is current sensor, can be current transformer, Rogowski coil, sampling resistor or suddenly
Your sensor etc., realizes the sampling of electric current, the signal of sampling after treatment, is input to electric energy metering module.R1, R2, R3, R4
It is resistance.R1 and R2, R3 and R4 form the circuit of two partial pressures, realize the sampling to voltage signal, the signal of sampling is at
After reason, it is input to electric energy metering module.Electric energy metering module, which refers to, can be realized electric energy/electrical parameter function of measuring, main real
Now to voltage, electric current, active power, the measurement of the parameters such as reactive power.There are many single-chip electrical energy measurement solution party in the market
Case.Such as the CS5480 of Cirrus logic company, the ADE9152 etc. of ADI company, these chips and voltage sampling circuit, electric current
Sample circuit forms ic for energy metering, and passes through communication bus output voltage, electric current, active power, reactive power etc., circuit
Very simple, cost is very low.In addition, it should be noted that, there are also some possible circuits needed in Fig. 2 and Fig. 3, such as the place of signal
Reason, the conversion of analog signal, communication bus, processor etc. do not embody in block diagrams.
The working principle of semaphore monitoring system provided in this embodiment is specifically described below:
Semaphore monitoring system provided in this embodiment includes two kinds of working conditions: control and detection.Control refers to control
Semaphore is lighted and is extinguished.Detection refers to that, to electronic power switch, semaphore filament, cable swinging cross etc. is detected, it is ensured that
Electronic power switch can be used, ensures that red light fracture of wire or circuit breaker do not occur and can not light for semaphore, or since cable swinging cross is sent out
Raw mistake lights the situation of other lamp positions.The specific works mistake of semaphore monitoring system provided in this embodiment is given below
Journey:
A, state of a control:
A, control semaphore is lighted:
Firstly, closing relay S3, S4, at this moment, the contact of S1 and S2 are shorted, switching is not had an effect, by T1, R1,
The various parameters of the metering circuit meeting moment circuit of measurement and control of R2, T2, R3, R4 and electric energy metering module composition；Then, it is closed
Two electronic power switches, switches all so are all closed, and semaphore can be lighted；The various electricity ginsengs of electric energy metering module output
Number realizes the integration of control monitoring.
B, control semaphore extinguishes:
Two electronic power switches are disconnected first, and in this way if electronic power switch is working properly, semaphore extinguishes, metering
The electric current that circuit measures is 0, and voltage is also 0, and the parameter of electric energy metering module output is also just 0；It is then turned off relay S3,
S4；S1 and S2 are switched to detection function.
B, detecting state:
A, the detection of electronic power switch:
Disconnect S3, the contact of two relays of S4, by the switching knife of S1 and S2 be switched to control function (as shown in Fig. 2,
That is the switching knife of S1 and S2 switches to normally-closed contact), it is closed an electronic power switch (such as the first electronic power switch), is passed through
Electric energy metering module reads voltage value and current value, if voltage value is 110V virtual value, and current value is 0, then illustrates the electricity
Power electronic switch is effectively closed, working properly；The electronic power switch opened is disconnected, at this moment electric energy metering module output
Voltage value and current value are 0, illustrate that electronic power switch is effectively disconnected, working properly；Once it is closed all electric power
Electronic switch executes this process, so that it may realize all electronic power switch detections.
B, swinging cross detects
Disconnect S3, the switching knife of S1 and S2 is switched to detection function (namely S1 and S2 by the contact of two relays of S4
Switching knife switches to normally opened contact), relay S3 and the first electronic power switch are successively opened, all electricity are then successively detected
The voltage value of energy metering module illustrates there is swinging cross if having voltage value output on other electric energy metering modules.
As it can be seen that the present embodiment devises a kind of monitoring system, which is realized by the combination of two relays
The switching of state of a control and detecting state, so that realizing the detection of Primary Component, the present embodiment in the control of semaphore
Circuit is simplified, the quantity of component is reduced, and more monitoring data, such as voltage are provided, active power, reactive power,
The data such as Current Voltage phase difference, are analyzed based on these data, and signal trouble monitoring, positioning etc. function may be implemented
Energy.
By content above it is found that semaphore provided in this embodiment monitors system, by special circuit design and after
The cooperating of electric appliance and switch type relay realizes and controls and monitors integrated design, compared to the prior art in need
The mode in two circuits of control loop and measure loop is separately provided, the present embodiment significantly simplifies circuit, realizes an electricity
Road multiple functions.
The above examples are only used to illustrate the technical scheme of the present invention, rather than its limitations；Although with reference to the foregoing embodiments
Invention is explained in detail, those skilled in the art should understand that: it still can be to aforementioned each implementation
Technical solution documented by example is modified or equivalent replacement of some of the technical features；And these are modified or replace
It changes, the spirit and scope for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution.
Claims (5)
1. a kind of semaphore monitors system, which is characterized in that including be sequentially connected in series positive pole, the first electronic power switch,
Semaphore, the second electronic power switch and power cathode；
Wherein, the first observation circuit is provided between first electronic power switch and the semaphore；Described second
The second observation circuit is provided between electronic power switch and the semaphore；
First observation circuit includes: the first current sensor, the first relay, the first switch type relay and the first partial pressure
Circuit；
The first end of first current sensor is connect with first electronic power switch, first current sensor
Second end is connect with first node；
One end of first relay is connect with first node, and the other end is connect with second node；
The normally-closed contact of the first switch type relay is connect with first node, the normally opened touching of the first switch type relay
Point is connect with second node, and the common end of the first switch type relay is connected to ground after connecting with the first bleeder circuit；
Second observation circuit includes: the second current sensor, the second relay, the second switch type relay and the second partial pressure
Circuit；
The first end of second current sensor is connect with second electronic power switch, second current sensor
Second end is connect with third node；
One end of second relay is connect with third node, and the other end is connect with fourth node；
The normally-closed contact of the second switch type relay is connect with third node, the normally opened touching of the second switch type relay
Point is connect with fourth node, and the common end of the second switch type relay is connected to ground after connecting with the second bleeder circuit.
2. system according to claim 1, which is characterized in that first bleeder circuit includes two or more strings
The resistance of connection；Second bleeder circuit includes two or more concatenated resistance.
3. system according to claim 2, which is characterized in that the system also includes: electric energy metering module；
The electric energy metering module, for being divided with first current sensor, second current sensor, described first
Circuit is connected with second bleeder circuit, for receiving and showing first current sensor and second current sense
The electric current of device acquisition, and calculate the partial pressure information on first bleeder circuit and second bleeder circuit.
4. system according to claim 3, which is characterized in that the electric energy metering module is also used to electric current based on the received
And the partial pressure information being calculated further calculates active power and reactive power.
5. system according to claim 1, which is characterized in that first current sensor and second current sense
Device is any one in current transformer, Rogowski coil, sampling resistor and Hall sensor.
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| CN201810995146.2A CN109375095B (en) | 2018-08-29 | 2018-08-29 | Signal machine monitoring system |
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Cited By (1)
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| CN111537908A (en) * | 2020-05-14 | 2020-08-14 | 青岛海信医疗设备股份有限公司 | Data processing method and related device of ultraviolet sterilization equipment |
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