CN104407948B - A kind of cold standby redundant star borne computer power up handover control system and method - Google Patents
A kind of cold standby redundant star borne computer power up handover control system and method Download PDFInfo
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- CN104407948B CN104407948B CN201410712859.5A CN201410712859A CN104407948B CN 104407948 B CN104407948 B CN 104407948B CN 201410712859 A CN201410712859 A CN 201410712859A CN 104407948 B CN104407948 B CN 104407948B
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Abstract
The present invention a kind of cold standby redundant star borne computer power up handover control system, including complete machine power-up circuit, house dog boot-strap circuit, power supply monitoring boot-strap circuit, port shutdown circuit, that corresponding each unit is arranged in series respectively or gate logic and anti-phase drive circuit, be separately positioned on the control relay of main frame or standby host power input.Control method of the present invention, by monitoring self duty and power supply situation, completes to back up powering up handover management between unit in real time；Utilize unit read-write operation is monitored and realize the malfunction monitoring to work unit and feedback, complete the automatic switchover between main frame and standby host；Realize, to the unit monitoring when power failure and the feedback of working, completing the automatic switchover between main frame and standby host by unit power supply is monitored；By to the port controlling powering up unit, it is possible to just other units are realized power down process after it powers up, it is ensured that the duty of cold standby；Realizing actively switching, reliability is high.
Description
Technical field
The present invention relates to electronic information technical field, adding of a kind of cold standby redundant star borne computer
Electricity method for handover control.
Background technology
At present, spaceborne computer is in order to realize design object highly reliable, long-life, and many employing two-shippers are cold
The Redundancy Design of backup, two of which unit is respectively designated as main frame and standby host, only has one in the same time
Platform unit is operated.Adhesive and the disconnection of relay spring is controlled between the two by outside direct instruction
Realize backup two-shipper adds outage management.Direct instruction control relay realize add power down function time,
Its control method is as shown in Figure 1.Although the control circuit of its control method and dependence is simple, but only depends on
The power-off that adds realizing redundancy backup by direct instruction switches, and not only reduces system reliability, and works as
Satellite is in non-ground station control region, and spaceborne computer, owing to not possessing capacity of self-government, once occurs event
Barrier will affect the normal work of whole star.If such as certain unit powers up instruction exception, this unit can not add
Electricity work loses the effect of backup, it is impossible to guarantee the smooth execution of whole star task.
Summary of the invention
For problems of the prior art, the present invention provides a kind of and can actively complete between two-shipper
Redundancy switch, the cold standby redundant star borne computer that reliability is high power up method for handover control.
The present invention is to be achieved through the following technical solutions:
The present invention a kind of cold standby redundant star borne computer power up handover control system, including,
After powering up at complete machine, send main frame to main frame respectively power up instruction, send standby host to standby host powered-down
The complete machine power-up circuit of instruction；
The house dog boot-strap circuit that corresponding each unit is respectively provided with；House dog boot-strap circuit is for correspondence
After unit powers up, to power up the read-write operation signal of the I/O port of unit as feeding-dog signal, the most not
Feed Canis familiaris L. at the appointed time, power up unit to being not powered on unit and send house dog start-up command；
The power supply monitoring boot-strap circuit that corresponding each unit is respectively provided with；Power supply monitoring boot-strap circuit is used for supervising
Surveying unit and power up the supply voltage of rear unit, once power supply can be to being not powered on list less than agreement this circuit of threshold value
Machine sends start-up command；
The port shutdown circuit that corresponding each unit is respectively provided with；Port shutdown circuit is for corresponding unit
After powering up, other units are sent port shutdown command；
That corresponding each unit is arranged in series respectively or gate logic and anti-phase drive circuit；Or gate logic
Circuit and anti-phase drive circuit are for start or the transmission of shutdown command indirectly；The start of main frame or gate logic
The input of circuit is respectively connected to the main frame of correspondence and powers up instruction, house dog start-up command and power supply monitoring and open
Machine instructs, the indirect start-up command of anti-phase drive circuit outfan of starting shooting output main frame；The shutdown of main frame or
The input of gate logic accesses corresponding port shutdown command, and the anti-phase drive circuit outfan that shuts down is defeated
Go out the indirect shutdown command of main frame；The start of standby host or the input of gate logic are respectively connected to correspondence
House dog start-up command and power supply monitoring start-up command, anti-phase drive circuit outfan of starting shooting output standby host
Start-up command indirectly；The shutdown of standby host or the input of gate logic access the corresponding powered-down instruction of standby host
With port shutdown command, the indirect shutdown command of the anti-phase drive circuit outfan that shuts down output standby host；
It is separately positioned on the control relay of main frame or standby host power input；Control relay to include controlling
In parallel indirectly the controlling relay and directly control relay of end, the direct switching on and shutting down instruction of corresponding unit connects
Enter and control end to the corresponding of direct relay；The indirect switching machine instruction of corresponding unit is linked into indirect relay
The corresponding of device controls end.
Preferably, complete machine power-up circuit includes electric source monitoring circuit and the phase inverter of series connection, power supply monitoring electricity
The input on road connects respectively and adds host power supply and public power.
Preferably, house dog boot-strap circuit includes that the enumerator of series connection, shift register and three inputs are with non-
Door；For providing the input feeding Canis familiaris L. time counter to connect feeding-dog signal；Shift register and three inputs
NAND gate is for obtaining the house dog start-up command being not powered on unit according to feeding-dog signal.
Preferably, power supply monitoring boot-strap circuit includes electric source monitoring circuit and monostable circuit, the power supply of series connection
The input of observation circuit connects power supply and the public power of corresponding unit respectively.
Preferably, port shutdown circuit include series connection D flip-flop and with door；D flip-flop
Input is respectively connected to the corresponding working signal of unit, I/O port decoded signal and reset signal.
The present invention a kind of cold standby redundant star borne computer power up method for handover control, including,
A. initialize, after powering to complete machine, send main frame to main frame respectively and power up instruction, to standby host
Send the powered-down instruction of standby host；
B., monitoring complete machine powers up the read-write operation of the I/O port of unit, if powered up within the setting time
Unit is not written and read operation, then to being not powered on unit transmission house dog start-up command；
C. monitoring powers up unit power supply, if power up unit power supply less than threshold voltage, then to being not powered on
Unit price sends power supply monitoring start-up command；
D., after any one unit powers up in complete machine, all port shutdown command is sent to other units；
E. the main frame in step a powers up instruction, corresponding in house dog start-up command and step c in step b
The power supply monitoring start-up command of main frame together warp or gate logic and anti-phase drive circuit process and obtain main frame
Indirect start-up command；The power supply monitoring of corresponding standby host in house dog start-up command and step c in step b
Start-up command together warp or gate logic and the process of anti-phase drive circuit obtain the start indirectly of standby host and refer to
Order；
F. in step d the port shutdown command of respective hosts through or gate logic and anti-phase drive circuit at
Reason obtains the indirect shutdown command of main frame；The powered-down instruction of standby host in step a, corresponding standby host in step d
Port shutdown command together through or gate logic and anti-phase drive circuit process and obtain the indirect pass of standby host
Machine instructs；
G. as control signal to this list after the indirect switching machine instruction of unit is in parallel with direct switching on and shutting down instruction
Machine realizes switching on and shutting down control.
Preferably, in step b, realize the real-time monitoring powering up unit by watchdog circuit, to add
The read-write operation signal of the I/O port of electricity unit as the feeding-dog signal of corresponding watchdog circuit, if
It is not fully complete in the setting time and feeds Canis familiaris L., then to being not powered on unit transmission house dog start-up command.
Preferably, in step g, the power input of each unit is respectively arranged with and controls the direct of end parallel connection
Control relay and indirectly control relay；In the control signal of each unit, the instruction of indirect switching machine accesses
Indirectly controlling relay to corresponding, the directly control being linked into correspondence after direct switching on and shutting down instruction parallel connection continues
Electrical equipment realizes switching on and shutting down control.
Compared with prior art, the present invention has a following useful technique effect:
Self duty is monitored with power supply situation by the present invention by equipment, completes in real time to back up between unit
Power up handover management；Utilize unit read-write operation monitor realize the malfunction monitoring to work unit with
Feedback, completes the automatic switchover between main frame and standby host；By the monitoring of unit power supply is realized work
Make the unit monitoring when power failure and feedback, complete the automatic switchover between main frame and standby host；Logical
Cross the port controlling powering up unit, it is possible to after it powers up, just other units are realized power down process, protect
The duty of card cold standby；Start or shutdown that same main frame is received by utilization or gate logic refer to
Order carry out or process, it is achieved redundancy backup power up switching, it is ensured that the reliability of its redundancy backup；Finally
Change the single control performed in existing Two-channel switching by direct instruction, by indirect instruction and direct instruction also
Connection carries out switching on and shutting down control to each unit, it is achieved both mutually redundant Standby controls, eliminates whole
Machine single-point, improves the reliability of spaceborne computer, it is possible to ensure that satellite is in non-ground station control region
Time, spaceborne computer is capable of self management and switching, it is ensured that satellite task is the most controlled.
Further, respectively by the concrete setting to each circuit, it is possible to ensure the stable generation of its signal
And transmission, it is ensured that the reliability of indirect instruction, utilize watchdog circuit to realize its I/O port read write
The monitoring of operation, simple in construction, working stability；Realize indirectly by controlling end relay in parallel and
Directly the binary channel of switching on and shutting down instruction controls.
Accompanying drawing explanation
Fig. 1 is that in prior art, direct instruction control relay adds power down function schematic diagram.
Fig. 2 is the architecture logic schematic diagram of the complete machine power-up circuit described in present example.
Fig. 3 is the architecture logic schematic diagram of the house dog boot-strap circuit described in present example.
Fig. 4 a is the power supply monitoring boot-strap circuit architecture logic schematic diagram of main frame described in present example.
Fig. 4 b is the power supply monitoring boot-strap circuit architecture logic schematic diagram of standby host described in present example.
Fig. 5 is the architecture logic schematic diagram of the port shutdown circuit described in present example.
Fig. 6 a is that the indirect switching machine instruction of main frame described in present example generates schematic block diagram.
Fig. 6 b is that the indirect shutdown command of standby host described in present example generates schematic block diagram.
Fig. 7 is the control connection diagram of the relay described in present example.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is described in further detail, described in be to the present invention
Explanation rather than restriction.
The present invention a kind of cold standby redundant star borne computer power up handover control system, including,
After powering up at complete machine, send main frame to main frame respectively power up instruction, send standby host to standby host powered-down
The complete machine power-up circuit of instruction, as shown in Figure 2；The house dog start electricity that corresponding each unit is respectively provided with
Road；As it is shown on figure 3, house dog boot-strap circuit is after corresponding unit powers up, to power up unit
The read-write operation signal of I/O port, as feeding-dog signal, is fed Canis familiaris L. the most at the appointed time, is powered up list
Machine sends house dog start-up command to being not powered on unit；The power supply monitoring that corresponding each unit is respectively provided with is opened
Dynamo-electric road；As shown in figures 4 a and 4b, power supply monitoring boot-strap circuit is used for monitoring unit and powers up rear unit
Supply voltage, once power supply less than agreement this circuit of threshold value can be not powered on unit send start-up command；
The port shutdown circuit that corresponding each unit is respectively provided with；As it is shown in figure 5, port shutdown circuit is for right
After the unit answered powers up, other units are sent port shutdown command；As shown in figures 6 a and 6b, right
Answer each unit is arranged in series respectively or gate logic and anti-phase drive circuit；Or gate logic and
Anti-phase drive circuit is for start or the transmission of shutdown command indirectly；The start of main frame or gate logic
Input is respectively connected to that the main frame of correspondence powers up instruction, house dog start-up command and power supply monitoring are started shooting and referred to
Order, the indirect start-up command of anti-phase drive circuit outfan of starting shooting output main frame；Shutdown or the door of main frame are patrolled
The input collecting circuit accesses corresponding port shutdown command, and the anti-phase drive circuit outfan that shuts down output is main
The indirect shutdown command of machine；The start of standby host or the input of gate logic are respectively connected to guarding the gate of correspondence
Canis familiaris L. start-up command and power supply monitoring start-up command, anti-phase drive circuit outfan of starting shooting exports the indirect of standby host
Start-up command；The shutdown of standby host or the input of gate logic access the corresponding powered-down instruction of standby host and end
Mouth shutdown command, the indirect shutdown command of the anti-phase drive circuit outfan that shuts down output standby host；Such as Fig. 7 institute
Show, be separately positioned on the control relay of main frame or standby host power input；Control relay to include controlling
In parallel indirectly the controlling relay and directly control relay of end, the direct switching on and shutting down instruction of corresponding unit connects
Enter and control end to the corresponding of direct relay；The indirect switching machine instruction of corresponding unit is linked into indirect relay
The corresponding of device controls end.
Wherein, as in figure 2 it is shown, complete machine power-up circuit includes electric source monitoring circuit and the phase inverter of series connection,
The input of electric source monitoring circuit connects host power supply and public power respectively.As it is shown on figure 3, house dog
Boot-strap circuit includes enumerator, shift register and three input nand gates of series connection；During for providing hello Canis familiaris L.
Between enumerator input connect feeding-dog signal；Shift register and three input nand gates are for according to feeding Canis familiaris L.
Signal obtains the house dog start-up command being not powered on unit.As shown in figures 4 a and 4b, power supply monitoring
Boot-strap circuit includes electric source monitoring circuit and the monostable circuit of series connection, and the input of electric source monitoring circuit is respectively
Connect power supply and the public power of corresponding unit.As it is shown in figure 5, port shutdown circuit includes the D of series connection
D-flip flop and with door；The input of D flip-flop is respectively connected to the corresponding working signal of unit, I/O
Port decoded signal and reset signal.
The present invention a kind of cold standby redundant star borne computer power up method for handover control, including,
A. initialize, after powering to complete machine, send main frame to main frame respectively and power up instruction, to standby host
Send the powered-down instruction of standby host；
B., monitoring complete machine powers up the read-write operation of the I/O port of unit, namely performs house dog and feed Canis familiaris L.
Operation, if power up unit be not written and read operation, then to being not powered on unit transmission within the setting time
House dog start-up command；In this preferred embodiment, realized the real-time prison powering up unit by watchdog circuit
Survey, to power up the read-write operation signal hello the Canis familiaris L. letter as corresponding watchdog circuit of the I/O port of unit
Number, feed Canis familiaris L. if be not fully complete within the setting time, then to being not powered on unit transmission house dog start-up command.
C. monitoring powers up unit power supply, if power up unit power supply less than threshold voltage, then to being not powered on
Unit sends power supply monitoring start-up command；
D., after any one unit powers up in complete machine, all port shutdown command is sent to other units；
E. the main frame in step a powers up instruction, corresponding in house dog start-up command and step c in step b
The power supply monitoring start-up command of main frame together warp or gate logic and anti-phase drive circuit process and obtain main frame
Indirect start-up command；The power supply monitoring of corresponding standby host in house dog start-up command and step c in step b
Start-up command together warp or gate logic and the process of anti-phase drive circuit obtain the start indirectly of standby host and refer to
Order；
F. in step d the port shutdown command of respective hosts through or gate logic and anti-phase drive circuit at
Reason obtains the indirect shutdown command of main frame；The powered-down instruction of standby host in step a, corresponding standby host in step d
Port shutdown command together through or gate logic and anti-phase drive circuit process and obtain the indirect pass of standby host
Machine instructs；
G. as control signal to this list after the indirect switching machine instruction of unit is in parallel with direct switching on and shutting down instruction
Machine realizes switching on and shutting down control.In this preferred embodiment, the power input of each unit is respectively arranged with control end
In parallel directly controls relay and indirectly controls relay；In the control signal of each unit, indirect switching
What machine instruction was linked into correspondence controls relay indirectly, is linked into correspondence after direct switching on and shutting down instruction parallel connection
Directly control relay realizes switching on and shutting down control.
Concrete, when the present invention is applied in the cold standby redundant star borne computer of reality, first carry out whole
After machine is powered, it is provided that in two-shipper, main frame powers up, logic control that standby host is powered-down and circuit.Such as Fig. 2 institute
Showing, wherein, the host power supply of+5.5VA and public power VCOM are connected to the power supply of MAX706T
In observation circuit, after it powers up, 7 lower limbs can export undersuing, signal inverted device 54HC14
Become positive pulse just can as the control instruction of relay, thus to realize opening master through anti-phase driving again
Machine, the function of pass standby host.Wherein, public power VCOM no matter main frame or standby host power up, this region
All there is electricity.This logic control method and circuit are to have to carry out after complete machine powers up, and add main frame
Electricity, carries out powered-down to standby host, thus realizes the requirement of cold standby.
Secondly, either at main frame or standby host operationally, it is intended to work unit is carried out its read-write behaviour
The monitoring made, to be namely monitored its duty；In this example by with unit one_to_one corresponding
Having arranged of house dog boot-strap circuit, operate as dog feeding operation using I/O port read write, and
Being not fully complete dog feeding operation in the time set, the unit that do not works can be sent and hold by house dog boot-strap circuit automatically
Machine instructs.As it is shown on figure 3, wherein, when after main frame powers up, operation is broken down, house dog start electricity
Road sends out standby host instruction；When after standby host powers up, operation is broken down, house dog boot-strap circuit sends out
Host command.The feeding-dog signal that cycle produces is undersuing, it can be ensured that shift register
54HC164 Yu 54HC4060 output low level signal, will not send corresponding start-up command.When feeding Canis familiaris L.
Signal is not produced by specified period, and enumerator 54HC4060 can export clock signal, this clock signal meeting
Shift register 54HC164 is allowed to export high level step by step, when 3 lower limbs, the 10 high electricity of lower limb output of this circuit
Flat, during 11 lower limb output low level, three input nand gate 54HC10 output low level signals.Three input with
The low level signal of not gate 54HC10 output again can be as relay through anti-phase driving after phase place negates
Device control instruction, thus realize opening the function of main frame or standby host.Power up unit power supply VCC to be connected to move
On bit register 54HC164, it is ensured that its synchronous working with corresponding unit and monitoring.
Further, either at main frame or standby host operationally, it is intended to work unit is carried out its power supply
Monitoring, namely to monitor power supply the most normally；After complete machine is powered, the power supply monitoring of work unit
Circuit is started working, and when powering up unit power supply less than threshold voltage, electric source monitoring circuit can send automatically
To the start-up command being not powered on unit.In fig .4, the host power supply of+5.5VA and dividing of public power
District VCOM is connected in the electric source monitoring circuit D5 of respective hosts, occurs asking monitoring its power supply
After topic, send to standby host and open standby host instruction；In fig. 4b, the public power of the standby host power supply of+5.5VB
Subregion VCC be connected in the electric source monitoring circuit D4 of corresponding standby host, occur monitoring its power supply
After problem, send to main frame and open host command.Wherein, 7 lower limbs of electric source monitoring circuit MAX706T with
3 lower limbs of monostable circuit 54HC123 connect, and after powering up, the former output low level can ensure that the latter will not be defeated
Make mistake instruction.5 lower limbs of electric source monitoring circuit MAX706T and 1 lower limb of monostable circuit 54HC123
Connect, when electric source monitoring circuit MAX706T monitors the input voltage of self 4 lower limb less than threshold voltage
Time, the output of 5 lower limbs is become low level from high level thus causes 13 lower limbs of monostable circuit 54HC123 defeated
Go out positive pulse signal, afterwards this signal is finally produced Control instruction through anti-phase driving, thus
Realize the power up function being not powered on unit.
Then, when main frame and standby host are with when leaving, after the unit opened can to send pass through I/O port operation main
Machine or standby host instruction, namely after any one unit powers up, be intended to that other units are sent port and close
Machine instructs.As it is shown in figure 5, the power supply VCC powering up unit is linked in D flip-flop, and with
Time access the corresponding working signal of unit, I/O port decoded signal and reset signal；When main frame powers up
Time, send pass standby host instruction；When standby host powers up, send pass host command.Wherein, D flip-flop
5 lower limbs of 54HC74 and 8 lower limbs respectively and are connected with 1 lower limb and 2 lower limbs of door 54HC08.After powering on, multiple
Position signal guarantees to be output as low level with door 54HC08, it can be ensured that will not output error instruction.When entering
I/O port decoded signal can be produced during row port operation, produce the working signal SD (6)=1 of configuration simultaneously
With SD (7)=0, now 5 lower limbs of D flip-flop 54HC74 and the output of 8 lower limbs is high level, with
The 3 lower limb output high level signals of door 54HC08；Afterwards this signal is finally produced through anti-phase driving and continue
Electrical equipment control instructs, thus realizes closing main frame or closing the function of standby host.
Finally, the open and close machine signal that foregoing circuit is produced, after carrying out collecting and driving, finally produce
Indirect instruction to Control；The indirect start-up command of the main frame in Fig. 6 a is by complete machine power-up circuit
In main frame power up instruction, in house dog start-up command in house dog boot-strap circuit and electric source monitoring circuit
Power supply monitoring start-up command together through or gate logic and anti-phase drive circuit process and obtain；Fig. 6 b
In the indirect shutdown command of standby host closed electromechanics by by the standby host shutdown command in complete machine power-up circuit and port
Port shutdown command in road together warp or gate logic and anti-phase drive circuit process and obtain.Main frame
Shutdown command is obtained after treatment by port shutdown command indirectly, and the indirect start-up command of standby host is by house dog
House dog start-up command in boot-strap circuit and the power supply monitoring start-up command in electric source monitoring circuit are treated
After obtain.
It is linked into control end parallel connection again after in parallel with direct switching on and shutting down instruction for the indirect switching machine obtained instruction
Relay group in, be powered controlling to corresponding main frame and standby host, as it is shown in fig. 7, the electricity of unit
Source input all arranges relay group, in relay group between contact relay input connect complete machine and power, directly
The outfan order machine of contact relay is powered, incoming control signal after both control end parallel connections, controls letter
Direct instruction in number accesses the corresponding end that controls of direct relay, contact relay between indirect instruction access
Corresponding control end.Obtain after the negative pulse instruction that direct instruction is an externally input, with above-mentioned process is indirect
Instruction realizes the backup of direct instruction and indirect instruction by relay group, in indirect instruction and direct instruction
There is one effectively then the redundancy of cold standby can be powered up switching in as long as to be controlled, promote spaceborne calculating
The self-monitoring of machine and operating capability.Spaceborne computer is by the indirect instruction produced voluntarily, it is not necessary to outside
Direct instruction, i.e. can ensure that computer-internal main frame powers up；When satellite be in non-ground station control region or
When outside direct instruction is invalid, spaceborne computer once breaks down, it is possible to actively complete between two-shipper
Redundancy switches, it is ensured that the smooth execution of whole star task.
Again on the spaceborne computer specific to two-shipper cold standby redundancy structure, by direct instruction and finger indirectly
What order realized main frame and standby host powers up switching.After utilizing complete machine power-up circuit to realize complete machine powering, main frame adds
Electricity work, the powered-down idle initial state of standby host determines；When powering up unit and breaking down, house dog is started shooting
Circuit onset, powers up to another power-off unit.Electromechanics is closed by port after the new unit working stability started
Road closing fault unit；When powering up unit and power failure occur, power supply monitoring boot-strap circuit breaks to another
Electricity unit powers up.By port shutdown circuit closing fault unit after the new unit working stability started.Adopt
Good in orbit with the spaceborne computer of above-mentioned design, any quality problems do not occur, smoothly completes
The scientific research mission of its survey of deep space.
Claims (8)
1. a cold standby redundant star borne computer power up handover control system, it is characterised in that bag
Include,
After powering up at complete machine, send main frame to main frame respectively power up instruction, send standby host to standby host powered-down
The complete machine power-up circuit of instruction；
The house dog boot-strap circuit that corresponding each unit is respectively provided with；House dog boot-strap circuit is for correspondence
After unit powers up, to power up the read-write operation signal of the I/O port of unit as feeding-dog signal, the most not
Feed Canis familiaris L. at the appointed time, power up unit to being not powered on unit and send house dog start-up command；
The power supply monitoring boot-strap circuit that corresponding each unit is respectively provided with；Power supply monitoring boot-strap circuit is used for supervising
Surveying unit and power up the supply voltage of rear unit, once power supply can be to being not powered on list less than agreement this circuit of threshold value
Machine sends start-up command；
The port shutdown circuit that corresponding each unit is respectively provided with；Port shutdown circuit is for corresponding unit
After powering up, other units are sent port shutdown command；
That corresponding each unit is arranged in series respectively or gate logic and anti-phase drive circuit；Or gate logic
Circuit and anti-phase drive circuit are for start or the transmission of shutdown command indirectly；The start of main frame or gate logic
The input of circuit is respectively connected to the main frame of correspondence and powers up instruction, house dog start-up command and power supply monitoring and open
Machine instructs, the indirect start-up command of anti-phase drive circuit outfan of starting shooting output main frame；The shutdown of main frame or
The input of gate logic accesses corresponding port shutdown command, and the anti-phase drive circuit outfan that shuts down is defeated
Go out the indirect shutdown command of main frame；The start of standby host or the input of gate logic are respectively connected to correspondence
House dog start-up command and power supply monitoring start-up command, anti-phase drive circuit outfan of starting shooting output standby host
Start-up command indirectly；The shutdown of standby host or the input of gate logic access the corresponding powered-down instruction of standby host
With port shutdown command, the indirect shutdown command of the anti-phase drive circuit outfan that shuts down output standby host；
It is separately positioned on main frame and the control relay of the respective power input of standby host；Control relay bag
Include and control in parallel indirectly the controlling relay and directly control relay of end, the direct switching on and shutting down of corresponding unit
Instruction is linked into the corresponding of direct relay and controls end；Between the indirect switching machine instruction of corresponding unit is linked into
The corresponding of contact relay controls end.
A kind of cold standby redundant star borne computer the most according to claim 1 power up switching control system
System, it is characterised in that complete machine power-up circuit includes electric source monitoring circuit and the phase inverter of series connection, power supply is supervised
The input of slowdown monitoring circuit connects host power supply and public power respectively.
A kind of cold standby redundant star borne computer the most according to claim 1 power up switching control system
System, it is characterised in that house dog boot-strap circuit includes enumerator, shift register and three inputs of series connection
NAND gate；For providing the input feeding Canis familiaris L. time counter to connect feeding-dog signal；Shift register and three
Input nand gate is for obtaining the house dog start-up command being not powered on unit according to feeding-dog signal.
A kind of cold standby redundant star borne computer the most according to claim 1 power up switching control system
System, it is characterised in that power supply monitoring boot-strap circuit includes electric source monitoring circuit and the monostable circuit of series connection,
The input of electric source monitoring circuit connects public power and the power supply of corresponding unit respectively.
A kind of cold standby redundant star borne computer the most according to claim 1 power up switching control system
System, it is characterised in that port shutdown circuit include series connection D flip-flop and with door；D type triggers
The input of device is respectively connected to the corresponding working signal of unit, I/O port decoded signal and reset signal.
6. a cold standby redundant star borne computer power up method for handover control, it is characterised in that bag
Include,
A. initialize, after powering to complete machine, send main frame to main frame respectively and power up instruction, to standby host
Send the powered-down instruction of standby host；
B., monitoring complete machine powers up the read-write operation of the I/O port of unit, if powered up within the setting time
Unit is not written and read operation, then to being not powered on unit transmission house dog start-up command；
C. monitoring powers up unit power supply, if power up unit power supply less than threshold voltage, then to being not powered on
Unit sends power supply monitoring start-up command；
D., after any one unit powers up in complete machine, all port shutdown command is sent to other units；
E. the main frame in step a powers up instruction, corresponding in house dog start-up command and step c in step b
The power supply monitoring start-up command of main frame together warp or gate logic and anti-phase drive circuit process and obtain main frame
Indirect start-up command；The power supply monitoring of corresponding standby host in house dog start-up command and step c in step b
Start-up command together warp or gate logic and the process of anti-phase drive circuit obtain the start indirectly of standby host and refer to
Order；
F. in step d the port shutdown command of respective hosts through or gate logic and anti-phase drive circuit at
Reason obtains the indirect shutdown command of main frame；The powered-down instruction of standby host in step a, corresponding standby host in step d
Port shutdown command together through or gate logic and anti-phase drive circuit process and obtain the indirect pass of standby host
Machine instructs；
G. as control signal to this list after the indirect switching machine instruction of unit is in parallel with direct switching on and shutting down instruction
Machine realizes switching on and shutting down control.
A kind of cold standby redundant star borne computer the most according to claim 6 power up switching control side
Method, it is characterised in that in step b, realizes the real-time monitoring powering up unit by watchdog circuit,
To power up the read-write operation signal feeding-dog signal as corresponding watchdog circuit of the I/O port of unit, as
Fruit is not fully complete within the setting time and feeds Canis familiaris L., then to being not powered on unit transmission house dog start-up command.
A kind of cold standby redundant star borne computer the most according to claim 6 power up switching control side
Method, it is characterised in that in step g, the power input of each unit is respectively arranged with and controls end parallel connection
Directly control relay and indirectly control relay；In the control signal of each unit, indirect switching machine instructs
Be linked into correspondence controls relay indirectly, is linked into the direct control of correspondence after direct switching on and shutting down instruction parallel connection
Relay processed realizes switching on and shutting down control.
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| CN107302393B (en) * | 2017-05-18 | 2020-03-06 | 上海卫星工程研究所 | Main-standby interlocking system for ensuring remote control single machine |
| CN110081984B (en) * | 2019-05-07 | 2020-11-27 | 中国科学院上海技术物理研究所 | Satellite-borne infrared detector multi-path high-speed signal isolation method and infrared imaging system |
| CN111077764B (en) * | 2019-11-26 | 2023-10-20 | 山东航天电子技术研究所 | Cold and hot standby load cross control method and circuit with power-on and reset |
| CN112131055B (en) * | 2020-09-08 | 2023-11-14 | 山东航天电子技术研究所 | Multi-mode three-motor dynamic fault-tolerant system |
| CN112066974B (en) * | 2020-09-16 | 2022-10-18 | 上海航天控制技术研究所 | Double-light-source switching circuit for optical fiber gyroscope combined system |
| CN112462595A (en) * | 2020-11-10 | 2021-03-09 | 中国科学院空天信息创新研究院 | High-altitude balloon safety control device and method |
| CN113721681B (en) * | 2021-09-13 | 2022-04-26 | 北京微纳星空科技有限公司 | Satellite temperature control device, satellite temperature control method, electronic equipment and storage medium |
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