CN102035614B - Transmitting end-based fault monitoring device - Google Patents
Transmitting end-based fault monitoring device Download PDFInfo
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- CN102035614B CN102035614B CN200910178821.3A CN200910178821A CN102035614B CN 102035614 B CN102035614 B CN 102035614B CN 200910178821 A CN200910178821 A CN 200910178821A CN 102035614 B CN102035614 B CN 102035614B
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Abstract
The invention discloses a transmitting end-based fault monitoring device. The fault monitoring device is connected with the transmitting end of a series system electrical interface. The fault monitoring device comprises an open circuit fault monitoring circuit for monitoring the fault state of the series system electrical interface due to open circuit and a short circuit fault monitoring circuit for monitoring the fault state of the series system electrical interface due to short circuit. According to the technical scheme provided by the invention, the fault monitoring device solves the problem of certain difficulty in actual fault examination because the transmitting end equipment in the related technology cannot directly detect the fault and only can judge the fault by indirectly depending on back insert alarm of receiving end equipment, further can realize on-line monitoring of the fault based on the transmitting end, is convenient for interface alarm analysis, and reduces resource consumption.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of fault monitoring device based on transmitting terminal.
Background technology
At communication technical field, often can use serial system electrical interface, relate to a large amount of interface docking and alert analysis processing.No matter be beginning or plant maintenance, interface alert analysis is processed and has all been expended a large amount of human and material resources.
Taking E1 electrical interface as example, the main alarm relating to comprises: dropout (LOS), OOF (LOF), alarm indication signal (AIS), remote alarm index signal (RAI or RDI).Wherein, each warning relation specifically can be referring to Fig. 1.
Fig. 1 is the schematic diagram that is related between the each main alarm of serial system interface.As shown in diagram above in Fig. 1, equipment B detects signal LOS or the LOF from C, and afterwards to device A transmitted signal AIS, equipment B is to equipment C transmitted signal RDI.So that equipment C is known the signal that the abnormal receiving equipment C of equipment B sends.In like manner, as shown in diagram below in Fig. 1, equipment B detects signal LOS or the LOF from A, to device A transmitted signal RDI, so that device A is known the signal that the abnormal receiving equipment A of equipment B sends.
Obviously, dropout (LOS) refers in the time that receiving device does not detect signal, receiving device self is complained to dropout (LOS) alarm, causes that one of reason of this alarm is exactly that transmission path opens circuit, transmission path short circuit, the output of the fault of making a start no signal, impedance mismatch etc.But in existing system, the equal failed call of national and foreign standards is made a start and is directly monitored this type of fault, known main flow producer is equal secundum legem equipment also, sending ending equipment cannot directly be found out this type of fault, can only indirectly rely on the slotting alarm judgement of returning of receiving device, pass through back slotting remote alarm index signal (RAI or RDI) judgement, as shown in Figure 1, in unavoidable situation, need to do in many places such as transmission equipment, DDF framves the loopback of software or hardware, to confirm the reason of fault, this will inevitably cause certain difficulty to physical fault investigation.
Summary of the invention
Cannot directly find out fault for sending ending equipment in correlation technique, can only indirectly rely on the slotting alarm judgement of returning of receiving device, cause physical fault investigation to produce the problem of certain difficulty and propose the present invention, for this reason, main purpose of the present invention is to provide a kind of improved fault monitoring device and method based on transmitting terminal, one of to address the above problem at least.
According to the present invention, provide a kind of fault monitoring device based on transmitting terminal.
According to the fault monitoring device based on transmitting terminal of the present invention, be connected with the transmitting terminal of serial system electrical interface, this fault monitoring device comprises: open fault observation circuit, for monitoring serial system electrical interface because of the malfunction former thereby that cause of opening a way; Short trouble observation circuit, for monitoring serial system electrical interface because of the malfunction that short circuit is former thereby cause.
By the present invention, a kind of fault monitoring device based on transmitting terminal is provided, monitor serial system electrical interface because of the transmitting terminal output voltage amplitude lifting state former thereby that cause of opening a way, or because the transmitting terminal output voltage amplitude that short circuit is former thereby cause reduces state, solve sending ending equipment in correlation technique and cannot directly find out fault, can only indirectly rely on the slotting alarm judgement of returning of receiving device, cause physical fault investigation to produce the problem of certain difficulty, and then can realize based on transmitting terminal the on-line monitoring of fault, Convenient interface alert analysis, reduce resource cost.
Other features and advantages of the present invention will be set forth in the following description, and, partly from specification, become apparent, or understand by implementing the present invention.Object of the present invention and other advantages can be realized and be obtained by specifically noted structure in write specification, claims and accompanying drawing.
Brief description of the drawings
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms the application's a part, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the schematic diagram that is related between the each main alarm of serial system interface;
Fig. 2 is the communication system architecture figure that comprises fault monitoring device according to the embodiment of the present invention;
Fig. 3 is the structural representation of the fault monitoring device based on transmitting terminal according to the preferred embodiment of the invention;
Fig. 4 is the structural representation that comprises according to the preferred embodiment of the invention the communication system of fault monitoring device.
Embodiment
Functional overview
Consider that in correlation technique, sending ending equipment cannot directly be found out fault, can only indirectly rely on the slotting alarm judgement of returning of receiving device, cause physical fault investigation to produce the problem of certain difficulty, the embodiment of the present invention provides a kind of fault monitoring device based on transmitting terminal, this fault monitoring device is connected with the transmitting terminal of serial system electrical interface, realizes the on-line monitoring to fault at transmitting terminal.Wherein, this fault monitoring device comprises: open fault observation circuit, for monitoring the state of serial system electrical interface because of open a way former thereby the transmitting terminal output voltage amplitude lifting that causes; Short trouble observation circuit, the state reducing because of the transmitting terminal output voltage amplitude that short circuit is former thereby cause for monitoring serial system electrical interface.
It should be noted that, in the situation that not conflicting, the feature in embodiment and embodiment in the application can combine mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the present invention in detail.
Device embodiment
According to the embodiment of the present invention, provide a kind of fault monitoring device based on transmitting terminal.
In order clearly to describe the present invention, the communication system architecture that first comprises fault monitoring device in conjunction with Fig. 2 introduction.
Fig. 2 is the communication system architecture figure that comprises fault monitoring device according to the embodiment of the present invention.As shown in Figure 2, communication system architecture comprises: fault monitoring device 1, the sending ending equipment 2 of series system electrical interface, the receiving device 3 of series system electrical interface, wherein, this fault monitoring device 1 is connected with the sending ending equipment 2 of serial system electrical interface, fault monitoring device 1 can be for carrying out Real-Time Monitoring at transmitting terminal to serial system electrical interface, fault monitoring device 1 is a kind of on-Line Monitor Device, it is a part for interface circuit, in monitoring fault and in providing faulty indication, this monitoring device can docking port normal use have any impact.
Preferably, fault monitoring device 1 may further include: open fault observation circuit 10, short trouble observation circuit 12, and wherein, open fault observation circuit 10, for monitoring serial system electrical interface because of the malfunction former thereby that cause of opening a way; Short trouble observation circuit 12, for monitoring serial system electrical interface because of the malfunction that short circuit is former thereby cause.
Open fault observation circuit and short trouble observation circuit include: electric voltage observation circuit; Wherein, the electric voltage observation circuit that open fault observation circuit comprises, for monitoring the state of serial system electrical interface because of open a way former thereby the transmitting terminal output voltage amplitude lifting that causes; The electric voltage observation circuit that short trouble observation circuit comprises, the state reducing because of the transmitting terminal output voltage amplitude that short circuit is former thereby cause for monitoring serial system electrical interface.
Preferably, electric voltage observation circuit comprises: at least two divider resistances, for transmitting terminal output voltage is carried out to dividing potential drop; At least one input resistance, for inputing to the voltage after at least two divider resistance dividing potential drops the base stage of triode; Triode, for realizing conducting or non-conduction state according to the input voltage of base stage.
Preferably, different from the resistance of the resistance on correspondence position in the electric voltage observation circuit of short trouble observation circuit in the electric voltage observation circuit of open fault observation circuit.
Preferably, at least two divider resistances all adopt a kilo-ohm level resistance.
Preferably, above-mentioned open fault observation circuit 10 and short trouble observation circuit 12 include: indicating member, and for producing indication information according to the malfunction of serial system electrical interface.
Preferably, open fault observation circuit 10 comprises an indicating member, for producing indication information according to the open fault state of serial system electrical interface.Short trouble observation circuit also comprises an indicating member, for producing indication information according to the short trouble state of serial system electrical interface.
In specific implementation process, preferably, circuit structure corresponding to indicating member that open fault observation circuit 10 and short trouble observation circuit 12 comprise can be identical, also can be different.For example, if adopt identical circuit structure, indicating member can comprise: state display module, one or more current-limiting resistances, direct voltage source, wherein, state display module, for showing the state information of serial system electrical interface, wherein, this state information comprises: normal state information, open circuit or short-circuit condition information; One or more current-limiting resistances, direct voltage source, for the triode conducting in the situation that, with state display module, triode composition loop, to indicate the state of serial system electrical interface.
Preferably, state display module includes but not limited to: light-emitting diode.Where necessary, can also adopt logic chip etc.
Fig. 3 is the structural representation of the fault monitoring device based on transmitting terminal according to the preferred embodiment of the invention.As shown in Figure 3, according to the preferred embodiment of the invention the fault monitoring device based on transmitting terminal can be open fault observation circuit, also can be for short trouble observation circuit, above-mentioned two circuit can adopt identical circuit structure, below are described in detail as an example of open fault observation circuit example.
For example, adopt circuit structure as shown in Figure 3.This open fault circuit comprises: indicating member and electric voltage observation circuit, wherein, indicating member comprises following components and parts: a light-emitting diode D1, current-limiting resistance R7, a current source V2.Electric voltage observation circuit comprises: divider resistance R4, R5, input resistance R6, a triode Q1.
Wherein, open circuit voltage observation circuit is for monitoring the voltage lifting of making a start causing because of open circuit.When transmission path open circuit, have total reflection, one times of the about lifting of voltage that the high resistant pattern of making a start is measured, open circuit voltage observation circuit is monitored based on this.Open circuit voltage observation circuit is placed in the transformer secondary output position of making a start.Originating terminal signal is controlled ground level and the emitter of triode Q1 after resistance R 4, R5 dividing potential drop, the foundation of utilizing the turn-on threshold of triode whether to open a way as monitoring.When transmission path open circuit, about one times of the voltage amplitude lifting of making a start, non-constant known with respect to the line reflection time according to HDB3 coding and transmitted signal clock cycle, make a start and must occur at interval of a short period positive level of about one times of amplitude lifting, triode G1 stage (thering is certain periodicity) conducting; When transmission path is normal, the voltage amplitude of making a start is normal, now triode G1 not conducting always; In addition, transmission path does not mate and causes reflex time, also may cause voltage amplitude lifting, and then triode G1 conducting.While introducing observation circuit, in order not cause that the impedance variation of making a start exceeds standard, the resistance of aforementioned resistance should be enough large, and as for system impedance is 75 Europe, requiring system impedance scope is 75 ± 3 Europe, so R4, R5 should select the resistance of kilo-ohm level.
Preferably, the divider resistance of the open circuit voltage observation circuit that above-mentioned practice mode is described makes after suitable amendment, can be for the short-circuit voltage monitoring of the situations such as transmission path short circuit.Resistance by R4, R5 is allocated.In the time of transmission path, local device and the equal fault-free of opposite equip., when the voltage of making a start is normal, the interim conducting of triode; In the time that the reasons such as transmission path short circuit cause making a start voltage amplitude reduction, triode not conducting always.In addition, transmission path does not mate and causes reflex time, also may cause voltage amplitude to reduce, and then not conducting of triode G1.
Preferably, indicating circuit is for providing information to fault.Indicating circuit and open circuit (or short circuit) electric voltage observation circuit is associated by triode Q1.Indicating circuit is placed in the transformer secondary output position of making a start.When triode G1 conducting, direct voltage source V2, current-limiting resistance R7, Light-Emitting Diode D1, the loop conducting of triode G1 composition, diode is lighted; Not conducting of triode G1, direct voltage source V2, current-limiting resistance R7, Light-Emitting Diode D1, the not conducting of loop of triode G1 composition, diode is not lighted.Open circuit or short-circuit voltage observation circuit can coordinate different indicating circuits to use.In addition, Light-Emitting Diode D1 is only a kind of display format, also can not use Light-Emitting Diode, and use other modes to realize, for example, logic chip.
Fig. 4 is the structural representation that comprises according to the preferred embodiment of the invention the communication system of fault monitoring device.As shown in Figure 4, this communication system only shows a set of failure detector circuit, in specific implementation process, in order to monitor open circuit or short-circuit condition, need to be at the transmitting terminal of serial system electrical interface (as shown in Figure 4, transmitting terminal comprises following components and parts: current source V1, resistance R 1, R2, and transformer TX1) connect two set of fault testing circuits, a set of be open fault observation circuit, a set of be short trouble observation circuit.Wherein, failure detector circuit can, referring to the description in Fig. 3, repeat no more herein.
In sum, by the above embodiment of the present invention, the fault monitoring device scheme based on transmitting terminal providing, can realize based on transmitting terminal the on-line monitoring of fault, has facilitated the processing of interface alert analysis, has reduced human and material resources and has expended.And this scheme realize simple, be easy to use, can not increase too many cost and development difficulty.
Obviously, those skilled in the art should be understood that, above-mentioned of the present invention each module or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on the network that multiple calculation elements form, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in storage device and be carried out by calculation element, or they are made into respectively to each integrated circuit modules, or the multiple modules in them or step are made into single integrated circuit module to be realized.Like this, the present invention is not restricted to any specific hardware and software combination.
These are only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (7)
1. the fault monitoring device based on transmitting terminal, is characterized in that, described fault monitoring device is connected with the transmitting terminal of serial system electrical interface, and described fault monitoring device comprises:
Open fault observation circuit, for monitoring described serial system electrical interface because of the malfunction former thereby that cause of opening a way;
Short trouble observation circuit, for monitoring described serial system electrical interface because of the malfunction that short circuit is former thereby cause;
Wherein, described open fault observation circuit and described short trouble observation circuit include: electric voltage observation circuit; Wherein, the electric voltage observation circuit that described open fault observation circuit comprises, for monitoring the state of described serial system electrical interface because of open a way former thereby the transmitting terminal output voltage amplitude lifting that causes; The electric voltage observation circuit that described short trouble observation circuit comprises, the state reducing because of the transmitting terminal output voltage amplitude that short circuit is former thereby cause for monitoring described serial system electrical interface;
Wherein, when transmission path open circuit, have total reflection, one times of the about lifting of voltage that the high resistant pattern of making a start is measured, open circuit voltage observation circuit is monitored based on this.
2. device according to claim 1, is characterized in that, described electric voltage observation circuit comprises:
At least two divider resistances, for carrying out dividing potential drop by described transmitting terminal output voltage;
At least one input resistance, for inputing to the voltage after described at least two divider resistance dividing potential drops the base stage of triode;
Described triode, for realizing conducting or non-conduction state according to the input voltage of base stage.
3. device according to claim 2, is characterized in that,
Different from the resistance of the resistance on correspondence position in the electric voltage observation circuit of described short trouble observation circuit in the electric voltage observation circuit of described open fault observation circuit.
4. device according to claim 3, is characterized in that,
Described at least two divider resistances all adopt a kilo-ohm level resistance.
5. according to the device described in any one in claim 2 to 4, it is characterized in that, described open fault observation circuit and described short trouble observation circuit all also comprise:
Indicating member, is connected by described triode with described electric voltage observation circuit, for producing indication information according to the malfunction of described serial system electrical interface.
6. device according to claim 5, is characterized in that,
Described indicating member comprises: state display module, one or more current-limiting resistances, triode, direct voltage source; Wherein,
Described state display module, for showing the state information of described serial system electrical interface, wherein, described state information comprises: normal state information, open circuit or short-circuit condition information;
Described one or more current-limiting resistance, described direct voltage source, for the described triode conducting in the situation that, with described state display module, described triode composition loop, to indicate the state of described serial system electrical interface.
7. device according to claim 6, is characterized in that,
Described state display module comprises: light-emitting diode.
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| CN200910178821.3A CN102035614B (en) | 2009-09-27 | 2009-09-27 | Transmitting end-based fault monitoring device |
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| CN200910178821.3A CN102035614B (en) | 2009-09-27 | 2009-09-27 | Transmitting end-based fault monitoring device |
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| CN108375180B (en) * | 2018-03-14 | 2020-04-28 | 珠海格力电器股份有限公司 | Interface multiplexing system and method of air conditioner controller |
| CN109459635B (en) * | 2018-11-09 | 2021-11-30 | 杭州妙娱科技有限公司 | Virtual reality game equipment fault monitoring method and device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2453616Y (en) * | 2000-11-21 | 2001-10-10 | 张斌 | Means for automatic monitoring fault of program control telephone communication network |
| CN2638162Y (en) * | 2003-05-30 | 2004-09-01 | 李刚 | Theft-proof alarm device |
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| CN1917329A (en) * | 2005-08-19 | 2007-02-21 | 上海尽祥数码科技有限公司 | Direct power feed bus controller for cars, and control method |
| CN101456362A (en) * | 2007-12-11 | 2009-06-17 | 天津市松正电子有限公司 | Control circuit for intelligent electric vehicle controller |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2453616Y (en) * | 2000-11-21 | 2001-10-10 | 张斌 | Means for automatic monitoring fault of program control telephone communication network |
| CN2638162Y (en) * | 2003-05-30 | 2004-09-01 | 李刚 | Theft-proof alarm device |
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