CN101799775B - Monitoring method for monitoring circuit and business board - Google Patents
Monitoring method for monitoring circuit and business board Download PDFInfo
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- CN101799775B CN101799775B CN2010101326062A CN201010132606A CN101799775B CN 101799775 B CN101799775 B CN 101799775B CN 2010101326062 A CN2010101326062 A CN 2010101326062A CN 201010132606 A CN201010132606 A CN 201010132606A CN 101799775 B CN101799775 B CN 101799775B
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Abstract
The invention provides a monitoring method for a monitoring circuit and a business board. The method comprises the following steps of: receiving a command sent by a master control CPU by a monitoring circuit; sending out a power control signal of a logic 1 by a power control module when the command indicates to electrify a business processing circuit, and sending out a power control signal of a logic 0 by the power control module when the command indicates to break the business processing circuit; and carrying out arithmetic operation on the power control signal and a self-checking signal from the business processing circuit by an or gate arithmetic unit of the monitoring circuit, and then sending out an electrifying control signal. The invention avoids the problem of the break of the business processing circuit in the original normal operation after the break of the monitoring circuit, thereby improving the reliability of the business processing circuit. Moreover, the invention is more beneficial to the improvement of the accuracy for monitoring the business processing circuit of the business board by introducing the self-checking signal to carry out power control.
Description
Technical field
The embodiment of the invention relates to the intelligent monitoring technology field of telecommunication apparatus, relates in particular to a kind of supervisory circuit and business board method for supervising.
Background technology
Communication facilities is made up of a lot of veneers usually and is generally included master control borad and business board; Wherein, Master control borad is provided with master cpu and is used for each veneer of communication facilities is carried out unified management and control; Usually also be provided with CPU on the business board, be used for management and control the service processing circuit of this business board.In the prior art; In order to adapt to of the influence of external environment conditions such as power supply, temperature to each veneer serviceability; Usually on business board, also be designed with the supervisory circuit that is used to monitor external environment condition, make master cpu can control the break-make of the power supply of service processing circuit through supervisory circuit.Such as on veneer, placing power supply monitoring chip, temperature sensor, when external environment condition occurs when unusual, supervisory circuit produces abnormality alarming signalisation master cpu or turn-offs the power supply of service processing circuit, to avoid device damage.
Existing supervisory circuit mainly adopts following dual mode that the power supply of service processing circuit is monitored:
Mode 2; When the power supply of supervisory circuit breaks down, only judge whether certain power supply in the service processing circuit normally determines whether continuing to the service processing circuit power supply, but in the existing business treatment circuit; In most cases all be to supply power by the power supply of a plurality of different magnitudes of voltage; Whether whether one of them power supply normally can not represent the whole service treatment circuit normal, and therefore, the accuracy of this power supply control mode is lower.
Summary of the invention
The embodiment of the invention provides a kind of supervisory circuit and business board method for supervising, in order to improve reliability and the accuracy to the business board monitoring.
The embodiment of the invention provides a kind of supervisory circuit; Be arranged on the business board of communication facilities; Be used to monitor said business board; Service processing circuit in wherein said supervisory circuit and the said business board uses independently power supply respectively, and said supervisory circuit comprises: CPU reaches or the door arithmetical unit, wherein:
Said CPU comprises: energy supply control module, and being used for communicating by letter with the master cpu of said communication facilities is connected, and sends power control signal according to the instruction of said master cpu;
Said or door arithmetical unit is used for said power control signal and the self-test signal that comes from service processing circuit are carried out sending electric control signal after the exclusive disjunction operation, controls powering on or cutting off the power supply of said service processing circuit;
Said CPU also comprises: force power-off modular, be used to send the pressure power-off signal, draw on the said pressure power-off signal to connect the dual power supply of Hot Spare each other;
Said supervisory circuit also comprises: with the door arithmetical unit, be used for said or door the arithmetical unit last electric control signal and the said pressure power-off signal that send are carried out and computing, send the on/off signal, control powering on or cutting off the power supply of said service processing circuit;
Said or door arithmetical unit all is connected the dual power supply of Hot Spare each other with said with the door arithmetical unit.
Another embodiment of the present invention provides a kind of business board method for supervising, comprising:
Supervisory circuit on the business board in the communication facilities receives the instruction that the master cpu on the master control borad in the said communication facilities is sent;
When said instruction indication powers on to service processing circuit; The energy supply control module of said supervisory circuit sends the power control signal of logical one; When said instruction indication was cut off the power supply to service processing circuit, said energy supply control module sent the power control signal of logical zero;
Said supervisory circuit or the door arithmetical unit said power control signal and the self-test signal that comes from said service processing circuit are carried out sending electric control signal after the exclusive disjunction operation, be used to control powering on or cutting off the power supply of said service processing circuit;
Unusual when said service processing circuit, but the self-test signal that sends is sent the pressure power-off signal of logical zero still when the logical one by said observation circuit; Through said observation circuit with the door arithmetical unit with computing after, send the connecting and disconnecting of the circuit signal of logical zero to said service processing circuit, make said service processing circuit outage; Draw on the said pressure power-off signal to connect the dual power supply of Hot Spare each other, said or door arithmetical unit all is connected the dual power supply of Hot Spare each other with said with the door arithmetical unit.
The present invention carries out the exclusive disjunction operation through use or door arithmetical unit to power control signal that comes from supervisory circuit and the self-test signal that comes from service processing circuit; Make when wherein a kind of signal is logical one; Get final product so that service processing circuit keeps powering on; Avoid after the supervisory circuit power down, making the problem of the service processing circuit outage of operate as normal originally, thereby improved the reliability of service processing circuit; And; Because self-test signal is compared with the duty of certain power supply in the service processing circuit, more can represent the running status of service processing circuit, therefore; Introduce self-test signal and carry out power supply control, more help improving the accuracy of the service processing circuit monitoring of business board.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do one to the accompanying drawing of required use in embodiment or the description of the Prior Art below introduces simply; Obviously, the accompanying drawing in describing below is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of supervisory circuit embodiment one according to the invention;
Fig. 2 is the process flow diagram based on the business board method for supervising embodiment of supervisory circuit shown in Figure 1;
Fig. 3 is the structural representation of supervisory circuit embodiment two according to the invention;
Fig. 4 is the structural representation of supervisory circuit embodiment three according to the invention.
Embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the invention clearer; To combine the accompanying drawing in the embodiment of the invention below; Technical scheme in the embodiment of the invention is carried out clear, intactly description; Obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
Fig. 1 is the structural representation of supervisory circuit embodiment one according to the invention; This supervisory circuit is arranged on the business board of communication facilities; Be used to monitor this business board; As shown in the figure, said supervisory circuit and said service processing circuit use independently power supply respectively, and said supervisory circuit comprises: CPU 10 and or door arithmetical unit 20.Wherein, the energy supply control module 11 in the said CPU 10 is communicated by letter with the master cpu (not shown) of said communication facilities and is connected, and for example, (Inter-Integrated Circuit is called for short: I can to pass through mutual integrated circuit
2C) bus communicates connection, and sends power control signal (Power_Ctr) according to the instruction of master cpu.Said or door arithmetical unit 20 is used for said power control signal and the self-test signal (Main_Good) that comes from service processing circuit are carried out sending electric control signal (Power_ON) after the exclusive disjunction operation; Particularly; Should go up the Enable Pin (En) that electric control signal sends to the power supply of service processing circuit, to control powering on or cutting off the power supply of said service processing circuit.
Fig. 2 is the process flow diagram based on the business board method for supervising embodiment of supervisory circuit shown in Figure 1, and is as shown in the figure, comprises the steps:
Particularly, master cpu can initiatively send instruction to supervisory circuit as required.Perhaps, as shown in Figure 1, in the CPU 10 of supervisory circuit, establish environment monitoring module 12 in addition, be used for the reception environment monitor signal.Wherein, said environmental monitoring signal is meant the signal that environmental parameters such as temperature to business board, voltage obtain when monitoring.When said environmental monitoring abnormal signal, send look-at-me by energy supply control module 11 to said master cpu, and send power control signal according to the instruction that said master cpu is sent according to said look-at-me.In addition, this energy supply control module 11 directly sends power control signal in the time of also can working as said environmental monitoring abnormal signal, and needn't wait for the instruction of master cpu.Particularly, above-mentioned instruction and look-at-me can be passed through I
2The C bus is transmitted between master cpu and supervisory circuit.
Wherein, Drop-down processing is done in said power control signal outside, particularly, can said power control signal ground connection be realized drop-down processing via the resistance of 4.7K ohm; Make that this power control signal still remains logical zero behind the power cut-off of the CPU in the supervisory circuit 10.
Step 103, said supervisory circuit or door arithmetical unit 20 pairs of said power control signals carry out sending electric control signal after the exclusive disjunction operation with the self-test signal that comes from said service processing circuit, be used to control powering on or cutting off the power supply of said service processing circuit.
Wherein, The said electric control signal (Power_ON) of going up is used to control powering on of said service processing circuit or cuts off the power supply; When electric control signal on this is logical one; Control the power supply electrifying of said service processing circuit, when electric control signal on this is logical zero, control the power cut-off of said service processing circuit.
Wherein, The self-test signal of said service processing circuit (Main_Good) is meant after service processing circuit powers on; Carry out from detecting operation by the CPU of service processing circuit, if self check through send the self-test signal of logical one, self check is not through then sending the self-test signal of logical zero else if.Wherein, drop-down processing is done in said self-test signal outside, particularly, can said self-test signal ground connection be realized drop-down processing via the resistance of 4.7K ohm, makes that this self-test signal still remains logical zero behind the power cut-off of service processing circuit.
In addition; As shown in Figure 1; In the said supervisory circuit state indicating member 40 can also be arranged further; Wherein series connection is provided with pull-up resistor (for example being 100 ohm resistance) and pull down resistor (for example being the resistance of 4.7K ohm), through this pull-up resistor and pull down resistor the power supply of CPU 10 is carried out dividing potential drop and sends condition indicative signal (MON_Good), makes service processing circuit according to this condition indicative signal execution self check process.Particularly, when this condition indicative signal is logical one, show that the CPU of this supervisory circuit is not cut off the power supply, at this moment, the self-test signal when service processing circuit keeps output self check last time, and need not to carry out again self check; When this condition indicative signal is logical zero, show the CPU outage of this supervisory circuit, at this moment; Service processing circuit will be carried out the self check process again; Checking whether this service processing circuit moves normally,, then send the self-test signal of logical zero if undesired; If normally, then send the self-test signal of logical one.
Because the aforementioned power source control signal has been carried out drop-down processing; Therefore when the power cut-off of CPU; Power control signal is a logical zero; If the self-detection result of service processing circuit is for normal and send the self-test signal of logical one, then through or 20 computings of door arithmetical unit after the last electric control signal that sends be logical one still, thereby the power supply maintenance of service processing circuit is powered on.
Said circuit of present embodiment and method come from supervisory circuit through use or 20 pairs of arithmetical unit of door power control signal carries out the exclusive disjunction operation with the self-test signal that comes from service processing circuit; Make when wherein a kind of signal is logical one; Get final product so that service processing circuit keeps powering on; Avoid after the supervisory circuit power down, making the problem of the service processing circuit outage of operate as normal originally, thereby improved the reliability of service processing circuit; And; Because self-test signal is compared with the duty of certain power supply in the service processing circuit, more can represent the running status of service processing circuit, therefore; Introduce self-test signal and carry out power supply control, more help improving the accuracy of the service processing circuit monitoring of business board.
Fig. 3 is the structural representation of supervisory circuit embodiment two according to the invention; As shown in the figure; The said supervisory circuit of present embodiment is improved as follows on the basis of the foregoing description one: further be provided with power-down notice module 13 in the said CPU 10; Be used for when the instruction indication of said master cpu is cut off the power supply to service processing circuit, sending power-down notice signal (Power_OFF_Sig) to said service processing circuit, when said power-down notice signal is logical one; Data are preserved process before making said service processing circuit carry out outage, and the self-test signal that said service processing circuit is sent becomes logical zero.
Wherein, Drop-down processing is done in said power-down notice signal outside; Particularly, can said power control signal ground connection be realized drop-down processing, make behind the power cut-off of the CPU in the supervisory circuit 10 via the resistance of 4.7K ohm; This power-down notice signal still remains logical zero, thereby data are preserved process before avoiding indicating services treatment circuit execution outage by error.
Table 1 is the logical relation between said each signal of this enforcement.
Table 1
When said instruction indication is cut off the power supply to service processing circuit; Send the power control signal of logical zero by energy supply control module; And the self-test signal that said service processing circuit is sent through present embodiment becomes logical zero; Then through or door arithmetical unit 20 send the last electric control signal of logical zero after carrying out exclusive disjunction, control the power cut-off of service processing circuit.
Present embodiment is also preserved process through data before sending the power-down notice signal to make service processing circuit execution outage before in the outage of indicating services treatment circuit, thereby has avoided loss of data, has improved professional reliability.
Fig. 4 is the structural representation of supervisory circuit embodiment three according to the invention; As shown in the figure; The said supervisory circuit of present embodiment is improved as follows on the basis of the foregoing description one or embodiment two: further be provided with in the said CPU 10 and force power-off modular 14; Be used to send and force power-off signal (Shut_Down), draw on this pressure power-off signal to be connected to the dual power supply of Hot Spare each other; Said supervisory circuit also comprises: with door arithmetical unit 30; Be used for last electric control signal and said pressure power-off signal said or that door arithmetical unit 20 sends are carried out and computing; Send on/off signal (ON/OFF), control powering on or cutting off the power supply of said service processing circuit.
In some cases; Although the CPU of service processing circuit may can't carry out that normal self check or self-detection result are that duty is unusual but self-test signal that send still is logical one owing to reasons such as deadlocks; At this moment; Also can't make electric control signal become logical zero even energy supply control module 11 sends the power control signal of logical zero, thereby can't make the service processing circuit outage.
In order to overcome above-mentioned defective; The said circuit of present embodiment is forced power-off modular 14 through setting up; When said service processing circuit unusual; But when the self-test signal that sends still is logical one, send the pressure power-off signal of logical zero by the pressure power-off modular 14 in the CPU in the said observation circuit; Through said and door arithmetical unit 30 with computing after, send the connecting and disconnecting of the circuit signal of logical zero to said service processing circuit, make said service processing circuit outage.
Wherein, said mutually redundant dual power supply comprise by 12V power supply (VCC_12V) through zener diode (as, model is the zener diode of TLV431) 3.3V power supply and 3.3V (VCC_MON) power supply that said CPU 10 is used of pressure stabilization function output.Be connected to the dual power supply of Hot Spare each other through making to force to draw on the power-off signal, even make that outage has taken place CPU 10, this pressure power-off signal still can remain logical one, thereby avoids making by error service processing circuit to force outage.
In addition, said or door arithmetical unit 20 and said and arithmetical unit 30 also can all be connected the dual power supply of said Hot Spare each other, and by its power supply.Even make CPU 10 that outage take place, or door arithmetical unit 20 and with door arithmetical unit 30 still can operate as normal.
Table 2 is the logical relation between said each signal of this enforcement.
Table 2
The said circuit of present embodiment is through sending the pressure power-off signal of logical zero, through with computing after can send the on/off signal of logical zero, thereby power supply that can the hard closing service processing circuit.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can be accomplished through the relevant hardware of programmed instruction; Aforesaid program can be stored in the computer read/write memory medium; This program the step that comprises said method embodiment when carrying out; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
What should explain at last is: above embodiment is only in order to explaining technical scheme of the present invention, but not to its restriction; Although with reference to previous embodiment the present invention has been carried out detailed explanation, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these are revised or replacement, do not make the spirit and the scope of the essence disengaging various embodiments of the present invention technical scheme of relevant art scheme.
Claims (7)
1. a supervisory circuit is arranged on the business board of communication facilities, is used to monitor said business board; It is characterized in that; Service processing circuit in said supervisory circuit and the said business board uses independently power supply respectively, and said supervisory circuit comprises: CPU reaches or the door arithmetical unit, wherein:
Said CPU comprises: energy supply control module, and being used for communicating by letter with the master cpu of said communication facilities is connected, and sends power control signal according to the instruction of said master cpu;
Said or door arithmetical unit is used for said power control signal and the self-test signal that comes from service processing circuit are carried out sending electric control signal after the exclusive disjunction operation, controls powering on or cutting off the power supply of said service processing circuit;
Said CPU also comprises: force power-off modular, be used to send the pressure power-off signal, draw on the said pressure power-off signal to connect the dual power supply of Hot Spare each other;
Said supervisory circuit also comprises: with the door arithmetical unit, be used for said or door the arithmetical unit last electric control signal and the said pressure power-off signal that send are carried out and computing, send the on/off signal, control powering on or cutting off the power supply of said service processing circuit;
Said or door arithmetical unit all is connected the dual power supply of Hot Spare each other with said with the door arithmetical unit.
2. supervisory circuit according to claim 1; It is characterized in that; Said supervisory circuit also comprises the state indicating member; Wherein series connection is provided with pull-up resistor and pull down resistor, is used for the power supply of said CPU is carried out dividing potential drop and sends condition indicative signal, makes said service processing circuit carry out the self check process according to said condition indicative signal.
3. supervisory circuit according to claim 1; It is characterized in that said CPU also comprises: the power-down notice module is used for when the instruction indication of said master cpu is cut off the power supply to service processing circuit; Send the power-down notice signal to said service processing circuit; When said power-down notice signal is logical one, make said service processing circuit carry out the preceding data of outage and preserve process, and the self-test signal that said service processing circuit is sent becomes logical zero.
4. supervisory circuit according to claim 1 is characterized in that, said CPU also comprises:
Environment monitoring module is used for the reception environment monitor signal;
Said energy supply control module also is used for directly sending power control signal according to said environmental monitoring signal; Perhaps; When said environmental monitoring abnormal signal; Send look-at-me to said master cpu, and send power control signal according to the instruction that said master cpu is sent according to said look-at-me.
5. a business board method for supervising is characterized in that, comprising:
Supervisory circuit on the business board in the communication facilities receives the instruction that the master cpu on the master control borad in the said communication facilities is sent;
When said instruction indication powers on to service processing circuit; The energy supply control module of said supervisory circuit sends the power control signal of logical one; When said instruction indication was cut off the power supply to service processing circuit, said energy supply control module sent the power control signal of logical zero;
Said supervisory circuit or the door arithmetical unit said power control signal and the self-test signal that comes from said service processing circuit are carried out sending electric control signal after the exclusive disjunction operation, be used to control powering on or cutting off the power supply of said service processing circuit;
Unusual when said service processing circuit, but the self-test signal that sends is sent the pressure power-off signal of logical zero still when the logical one by said observation circuit; Through said observation circuit with the door arithmetical unit with computing after, send the connecting and disconnecting of the circuit signal of logical zero to said service processing circuit, make said service processing circuit outage; Draw on the said pressure power-off signal to connect the dual power supply of Hot Spare each other, said or door arithmetical unit all is connected the dual power supply of Hot Spare each other with said with the door arithmetical unit.
6. method according to claim 5 is characterized in that, said supervisory circuit receives the instruction that said master cpu sends and comprises:
When the environmental monitoring abnormal signal that receives, send look-at-me to said master cpu;
Receive the instruction that said master cpu is sent according to said look-at-me.
7. method according to claim 5; It is characterized in that; Also comprise: when said instruction indication was cut off the power supply to service processing circuit, said supervisory circuit was sent the power-down notice signal to said service processing circuit, when said power-down notice signal is logical one; Data are preserved process before making said service processing circuit carry out outage, and the self-test signal that said service processing circuit is sent becomes logical zero.
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| CN2010101326062A CN101799775B (en) | 2010-03-24 | 2010-03-24 | Monitoring method for monitoring circuit and business board |
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| CN2010101326062A CN101799775B (en) | 2010-03-24 | 2010-03-24 | Monitoring method for monitoring circuit and business board |
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| CN101799775B true CN101799775B (en) | 2012-06-27 |
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| WO2012126407A2 (en) * | 2012-04-24 | 2012-09-27 | 华为技术有限公司 | Single service board and method for controlling power supply thereof |
| CN102801133B (en) * | 2012-08-14 | 2015-12-09 | 杭州华三通信技术有限公司 | A kind of method of automatic recovery of power supply and device |
| CN109614363A (en) * | 2018-11-16 | 2019-04-12 | 湖北航天技术研究院总体设计所 | A kind of missile-borne VPX processor management method and system |
| CN109710046B (en) * | 2018-12-12 | 2022-03-01 | 杭州迪普科技股份有限公司 | Frame type equipment service board power-on and power-off control system, method and device and main control board |
| CN111781881A (en) * | 2020-07-22 | 2020-10-16 | 湖南中车时代通信信号有限公司 | Man-machine interaction unit for train operation monitoring device and method for controlling on man-machine interaction unit |
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| CN1780348A (en) * | 2004-11-17 | 2006-05-31 | 华为技术有限公司 | Power supply controlling method and system for telecommunication system |
| CN1984208A (en) * | 2006-05-17 | 2007-06-20 | 华为技术有限公司 | Telecommunication monoboard and system kit and power-supply switching method |
| CN101286051A (en) * | 2008-05-30 | 2008-10-15 | 北京星网锐捷网络技术有限公司 | Electric power closed-loop control method and system |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1780348A (en) * | 2004-11-17 | 2006-05-31 | 华为技术有限公司 | Power supply controlling method and system for telecommunication system |
| CN1984208A (en) * | 2006-05-17 | 2007-06-20 | 华为技术有限公司 | Telecommunication monoboard and system kit and power-supply switching method |
| CN101286051A (en) * | 2008-05-30 | 2008-10-15 | 北京星网锐捷网络技术有限公司 | Electric power closed-loop control method and system |
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