CN105487374B - The GPIO control devices and its control method of hot backup system - Google Patents
The GPIO control devices and its control method of hot backup system Download PDFInfo
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- CN105487374B CN105487374B CN201511030525.0A CN201511030525A CN105487374B CN 105487374 B CN105487374 B CN 105487374B CN 201511030525 A CN201511030525 A CN 201511030525A CN 105487374 B CN105487374 B CN 105487374B
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- G—PHYSICS
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- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B9/00—Safety arrangements
- G05B9/02—Safety arrangements electric
- G05B9/03—Safety arrangements electric with multiple-channel loop, i.e. redundant control systems
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Abstract
The invention discloses the GPIO control devices and its control method of a kind of hot backup system；The GPIO control devices include：Configure the main controllable switch in master board；It configures in master board, the master controller being connected with main address wire, preparation controller and main logic circuit；It configures in master board, the main logic circuit being connected with main controllable switch, main address wire and master control line；Configure the standby controllable switch on standby control panel；Configuration is on standby control panel, with standby address wire, master controller and the preparation controller being connected for logic circuit；Configuration is on standby control panel, with standby controllable switch, standby address wire and the standby logic circuit being connected for control line；The present invention can realize that the active and standby control between internal system physical interface and exterior GPIO interface is automatically switched, using hardware controls mode, control mode based on software and program in compared with the existing technology, reliability and safety for guarantee system are advantageously.
Description
Technical field
The invention belongs to electronic technology field, the GPIO control devices and its controlling party of specially a kind of hot backup system
Method.
Background technology
Hot Spare processing must be done in the important module of broadcasting and TV application field, cabinet inside, so that going out in any module
Now after exception, whole system remains able to normal operation and work, ensures to be not in interrupt during broadcast.Control in cabinet
Control centre of the making sheet as system, the requirement based on Hot Spare have master board and standby control panel, under normal circumstances,
Master board is completed to the control of entire cabinet and the scheduling feature of system, and standby control panel must not have any shadow to cabinet and system
It rings, but in the case where exception occurs in master board, standby control panel wants can to take over the control of cabinet and system
Scheduling power continues the normal work for keeping cabinet and system.When any control panel of master board or standby control panel currently has
The control of cabinet and the scheduling power of system, correspondingly, the GPIO interface of the control panel then needs and GPIO external on cabinet
Interface is connected, to realize the information exchange between the scheduling of system and distinct device.In the prior art, for master board or standby
Connection between the GPIO interface of control panel and the GPIO interface of cabinet controls generally use software and program to realize, and by
Master board known to upper and standby control panel should be isolated from each other, and connect each other again, using the connection controlling party of software and program
Formula reliability is not high, safety is poor.
Invention content
The it is proposed of the present invention in view of the above problems, and develop a kind of the GPIO control devices and its controlling party of hot backup system
Method.
The technological means of the present invention is as follows：
A kind of GPIO control devices of hot backup system, the hot backup system include master board, standby control panel and machine
Case；The master board has main GPIO interface；The standby control panel has standby GPIO interface；The cabinet has cabinet GPIO
Interface；The master board has main address wire；The standby control panel has for address wire, and the GPIO control devices include：
Configure the main controllable switch in master board；The main controllable switch is placed in the main GPIO interface and the machine
Between case GPIO interface, for being switched on or switched off the connection between the main GPIO interface and the cabinet GPIO interface；
It configures in master board, the master controller being connected with main address wire, preparation controller and main logic circuit；It is described
Master controller is used to read the level signal in main address wire, detects whether there is standby control panel, detecting the master board is
No exception, and when there is no when exception, pass through master control line output with the level signal in the main address wire read for master board
Consistent level signal is to main logic circuit, when master board is deposited when abnormal, is exported by master control line main with what is read
The opposite level signal of level signal on the line of location is to main logic circuit, when master board there are exception and detects the presence of standby control
When making sheet, active-standby switch signal is exported to preparation controller；
It configures in master board, the main logic circuit being connected with main controllable switch, main address wire and master control line；When
When level signal in main address wire is consistent with the level signal on master control line, it is controllable that the main logic circuit controls the master
Switch is closed, and then connects the connection between main GPIO interface and the cabinet GPIO interface；When the level letter in main address wire
When number inconsistent with level signal on master control line, the main logic circuit control main controllable switch disconnects, and then disconnected
Open the connection between main GPIO interface and the cabinet GPIO interface；
Configure the standby controllable switch on standby control panel；The standby controllable switch is placed in the standby GPIO interface and the machine
Between case GPIO interface, for being switched on or switched off the connection between the standby GPIO interface and the cabinet GPIO interface；
Configuration is on standby control panel, with standby address wire, master controller and the preparation controller being connected for logic circuit；It is described
Preparation controller is used to read the level signal in standby address wire, detects whether that, there are master board, detecting the standby control panel is
No exception passes through standby control when not receiving active-standby switch signal that master controller transmits or standby control panel is deposited when abnormal
Line processed exports the opposite level signal of the level signal in the standby address wire with reading to standby logic circuit；The preparation controller is also
For when receive active-standby switch signal that master controller transmits and standby control panel is not deposited when abnormal, passing through standby control line
The level signal consistent with the level signal in the standby address wire read is exported to standby logic circuit, and defeated by standby control line
After going out the consistent level signal of the level signal in the standby address wire with reading to standby logic circuit, when there are different for standby control panel
When often and detecting the presence of master board, standby main switching signal is exported to master controller；
Configuration is on standby control panel, with standby controllable switch, standby address wire and the standby logic circuit being connected for control line；When
When level signal in standby address wire is consistent with the level signal on standby control line, the standby logic circuit control is described standby controllable
Switch is closed, and then connects standby connection between GPIO interface and the cabinet GPIO interface；When the level letter in standby address wire
When number inconsistent with level signal on standby control line, the standby logic circuit control standby controllable switch disconnection, and then break
Open standby connection between GPIO interface and the cabinet GPIO interface；
Further, when master board there are exception and detects that the master controller exports there is no when standby control panel
Warning message；When standby control panel there are exception and detects that the preparation controller exports warning message there is no when master board；
Further, the GPIO control devices further include for the power supply to main logic circuit and standby power logic circuitry
VDD and for the power supply VCC to main controllable switch and the power supply of standby controllable switch；
Further, the main controllable switch uses relay RL1, the normally opened contact of relay RL1 to be serially connected in master
Between GPIO interface and cabinet GPIO interface；The main logic circuit includes：XOR gate U1, XOR gate U2, resistance R1, switching tube
Q1, resistance R2, capacitance C2 and diode D1；Two input terminals of the XOR gate U1 are separately connected main address wire and master control line；
The output end of the XOR gate U1 connects an input terminal of the XOR gate U2, and another input terminal of the XOR gate U2 connects institute
State power vd D anodes；The output end of the XOR gate U2 is via resistance R1 connecting valve pipe Q1 base stages；The switching tube Q1 transmittings
Pole be grounded, the switching tube Q1 collectors via resistance R2 connection relay RL1 coils one end, relay RL1 coils it is another
One end connects power supply VCC anodes；The capacitance C2 is in parallel with the resistance R2；The diode D1 is connected in parallel on relay RL1's
Coil both ends；
Further, the standby controllable switch uses relay RL2, the normally opened contact of relay RL2 to be serially connected in standby
Between GPIO interface and cabinet GPIO interface；The standby logic circuit includes：XOR gate U3, XOR gate U4, resistance R3, switching tube
Q2, resistance R4, capacitance C4 and diode D2；Two input terminals of the XOR gate U3 are separately connected standby address wire and standby control line；
The output end of the XOR gate U3 connects an input terminal of the XOR gate U4, and another input terminal of the XOR gate U4 connects institute
State power vd D anodes；The output end of the XOR gate U4 is via resistance R3 connecting valve pipe Q2 base stages；The switching tube Q2 transmittings
Pole be grounded, the switching tube Q2 collectors via resistance R4 connection relay RL2 coils one end, relay RL2 coils it is another
One end connects power supply VCC anodes；The capacitance C4 is in parallel with the resistance R4；The diode D2 is connected in parallel on relay RL2's
Coil both ends.
A kind of GPIO control methods of hot backup system, the hot backup system include master board, standby control panel and machine
Case；The master board has main GPIO interface；The standby control panel has standby GPIO interface；The cabinet has cabinet GPIO
Interface；The master board has main address wire；It includes such as that the standby control panel, which has standby address wire, the GPIO control methods,
Lower step：
Main controllable switch, main logic circuit and master controller are configured in master board in advance, and on standby control panel
With controllable switch of purchasing, standby logic circuit and preparation controller；The main controllable switch is placed in the main GPIO interface and the machine
Between case GPIO interface, the standby controllable switch is placed between the standby GPIO interface and the cabinet GPIO interface；The master
Controller is connected with main address wire, preparation controller, and connects main logic circuit by master control line；The main logic circuit with
The main controllable switch, main address wire are connected；
Master controller reads the level signal in main address wire, detects whether there is standby control panel, and the detection master
Whether control panel is abnormal, and when master board is there is no when exception, master controller passes through master control line and exports with the main address read
The consistent level signal of level signal on line is to main logic circuit, and when master board is deposited when abnormal, master controller passes through master
Control line exports the opposite level signal of the level signal in the main address wire with reading to main logic circuit, when master board is deposited
In exception and when detecting the presence of standby control panel, master controller exports active-standby switch signal to preparation controller；When in main address wire
Level signal it is consistent with the level signal on master control line when, the main logic circuit control main controllable switch is closed, in turn
Connect the connection between main GPIO interface and the cabinet GPIO interface；When in the level signal and master control line in main address wire
Level signal it is inconsistent when, the main logic circuit control main controllable switch disconnects, and then disconnects main GPIO interface and described
Connection between cabinet GPIO interface；
Preparation controller reads the level signal in standby address wire, detects whether that there are master board, and detection are described standby
Whether control panel is abnormal, when not receiving active-standby switch signal that master controller transmits or standby control panel is deposited when abnormal,
Preparation controller exports the opposite level signal of the level signal in the standby address wire with reading by standby control line to standby logic electricity
Road, when receiving active-standby switch signal that master controller transmits and standby control panel is not deposited when abnormal, preparation controller passes through
Standby control line exports the consistent level signal of the level signal in the standby address wire with reading to standby logic circuit, and by standby
After control line exports the consistent level signal of the level signal in the standby address wire with reading to standby logic circuit, when standby control
For plate there are exception and when detecting the presence of master board, preparation controller exports standby main switching signal to master controller；When standby address
When level signal on line is consistent with the level signal on standby control line, the standby logic circuit control standby controllable switch is closed,
And then connect standby connection between GPIO interface and the cabinet GPIO interface；When the level signal in standby address wire is controlled with standby
When level signal on line is inconsistent, the standby logic circuit control standby controllable switch disconnects, so disconnect standby GPIO interface with
Connection between the cabinet GPIO interface；
Further, when master board there are exception and detects that the master controller exports there is no when standby control panel
Warning message；When standby control panel there are exception and detects that the preparation controller exports warning message there is no when master board.
By adopting the above-described technical solution, the GPIO control devices and its controlling party of hot backup system provided by the invention
Method, master board and the control of standby the control panel automatism isolation in physical connection, will not affect one another, can realize internal system
Active and standby control between physical interface and exterior GPIO interface is automatically switched, using hardware controls mode, relative to existing
Control mode based on software and program in technology, reliability and safety for guarantee system are advantageously.
Description of the drawings
Fig. 1 is the structure diagram of GPIO control devices of the present invention；
Fig. 2 is the circuit diagram of main logic circuit of the present invention；
Fig. 3 is the circuit diagram of standby logic circuit of the present invention.
Specific implementation mode
A kind of GPIO control devices of hot backup system as shown in Figure 1, Figure 2 and Figure 3, the hot backup system include master
Control panel, standby control panel and cabinet；The master board has main GPIO interface；The standby control panel has standby GPIO interface；
The cabinet has cabinet GPIO interface；The master board has main address wire；The standby control panel has standby address wire, institute
Stating GPIO control devices includes：Configure the main controllable switch in master board；The main controllable switch is placed in the main GPIO
Between interface and the cabinet GPIO interface, for being switched on or switched off between the main GPIO interface and the cabinet GPIO interface
Connection；It configures in master board, the master controller being connected with main address wire, preparation controller and main logic circuit；It is described
Master controller is used to read the level signal in main address wire, detects whether there is standby control panel, detecting the master board is
No exception, and when there is no when exception, pass through master control line output with the level signal in the main address wire read for master board
Consistent level signal is to main logic circuit, when master board is deposited when abnormal, is exported by master control line main with what is read
The opposite level signal of level signal on the line of location is to main logic circuit, when master board there are exception and detects the presence of standby control
When making sheet, active-standby switch signal is exported to preparation controller；Configuration is in master board, with main controllable switch, main address wire and master
The main logic circuit that control line is connected；When the level signal in main address wire is consistent with the level signal on master control line,
The main logic circuit control main controllable switch is closed, and then is connected between main GPIO interface and the cabinet GPIO interface
Connection；When the level signal in the level signal and master control line in main address wire is inconsistent, the main logic circuit control
It makes the main controllable switch to disconnect, and then disconnects the connection between main GPIO interface and the cabinet GPIO interface；Configuration is standby
Standby controllable switch on control panel；The standby controllable switch is placed between the standby GPIO interface and the cabinet GPIO interface,
For being switched on or switched off the connection between the standby GPIO interface and the cabinet GPIO interface；It configures on standby control panel, with
The preparation controller that standby address wire, master controller are connected with standby logic circuit；The preparation controller is for reading standby address wire
Level signal, detect whether there are master board, whether abnormal, when not receiving master controller biography if detecting the standby control panel
The defeated active-standby switch signal to come or standby control panel are deposited when abnormal, by standby control line output in the standby address wire read
The opposite level signal of level signal gives standby logic circuit；The preparation controller is additionally operable to transmit when receiving master controller
Active-standby switch signal and standby control panel do not deposit when abnormal, pass through standby control line output with the level in the standby address wire read
The consistent level signal of signal gives standby logic circuit, and believes with the level in the standby address wire read by standby control line output
Number consistent level signal is given after standby logic circuit, defeated when standby control panel is there are exception and detects the presence of master board
Go out standby main switching signal to master controller；Configuration is connected on standby control panel with standby controllable switch, standby address wire and standby control line
The standby logic circuit connect；When the level signal in standby address wire is consistent with the level signal on standby control line, the standby logic
Standby controllable switch described in circuit control is closed, and then connects standby connection between GPIO interface and the cabinet GPIO interface；When
When level signal in standby address wire is inconsistent with level signal on standby control line, the standby logic circuit control is described for can
Control switch disconnects, and then disconnects standby connection between GPIO interface and the cabinet GPIO interface；Further, work as master board
There are exception and detect that the master controller exports warning message there is no when standby control panel；When standby control panel has exception
And detect that the preparation controller exports warning message there is no when master board；Further, the GPIO control devices are also
Include for main logic circuit and standby power logic circuitry power vd D and for standby opening to main controllable switch and controllably
Close the power supply VCC of power supply；Further, the main controllable switch uses relay RL1, the normally opened contact string of relay RL1
It is connected between main GPIO interface and cabinet GPIO interface；The main logic circuit includes：XOR gate U1, XOR gate U2, resistance R1,
Switching tube Q1, resistance R2, capacitance C2 and diode D1；Two input terminals of the XOR gate U1 are separately connected main address wire and master control
Line processed；The output end of the XOR gate U1 connects an input terminal of the XOR gate U2, another input terminal of the XOR gate U2
Connect the power vd D anodes；The output end of the XOR gate U2 is via resistance R1 connecting valve pipe Q1 base stages；The switching tube
Q1 emitters are grounded, and the switching tube Q1 collectors are via one end of resistance R2 connection relay RL1 coils, relay RL1 lines
The other end connection power supply VCC anodes of circle；The capacitance C2 is in parallel with the resistance R2；The diode D1 is connected in parallel on relay
The coil both ends of RL1；Further, the standby controllable switch uses relay RL2, the normally opened contact of relay RL2 to concatenate
Standby between GPIO interface and cabinet GPIO interface；The standby logic circuit includes：XOR gate U3, it XOR gate U4, resistance R3, opens
Close pipe Q2, resistance R4, capacitance C4 and diode D2；Two input terminals of the XOR gate U3 are separately connected standby address wire and standby control
Line；The output end of the XOR gate U3 connects an input terminal of the XOR gate U4, and another input terminal of the XOR gate U4 connects
Connect the power vd D anodes；The output end of the XOR gate U4 is via resistance R3 connecting valve pipe Q2 base stages；The switching tube Q2
Emitter is grounded, and the switching tube Q2 collectors are via one end of resistance R4 connection relay RL2 coils, relay RL2 coils
Other end connection power supply VCC anode；The capacitance C4 is in parallel with the resistance R4；The diode D2 is connected in parallel on relay
The coil both ends of RL2.
A kind of GPIO control methods of hot backup system, the hot backup system include master board, standby control panel and machine
Case；The master board has main GPIO interface；The standby control panel has standby GPIO interface；The cabinet has cabinet GPIO
Interface；The master board has main address wire；It includes such as that the standby control panel, which has standby address wire, the GPIO control methods,
Lower step：
Main controllable switch, main logic circuit and master controller are configured in master board in advance, and on standby control panel
With controllable switch of purchasing, standby logic circuit and preparation controller；The main controllable switch is placed in the main GPIO interface and the machine
Between case GPIO interface, the standby controllable switch is placed between the standby GPIO interface and the cabinet GPIO interface；The master
Controller is connected with main address wire, preparation controller, and connects main logic circuit by master control line；The main logic circuit with
The main controllable switch, main address wire are connected；
Master controller reads the level signal in main address wire, detects whether there is standby control panel, and the detection master
Whether control panel is abnormal, and when master board is there is no when exception, master controller passes through master control line and exports with the main address read
The consistent level signal of level signal on line is to main logic circuit, and when master board is deposited when abnormal, master controller passes through master
Control line exports the opposite level signal of the level signal in the main address wire with reading to main logic circuit, when master board is deposited
In exception and when detecting the presence of standby control panel, master controller exports active-standby switch signal to preparation controller；When in main address wire
Level signal it is consistent with the level signal on master control line when, the main logic circuit control main controllable switch is closed, in turn
Connect the connection between main GPIO interface and the cabinet GPIO interface；When in the level signal and master control line in main address wire
Level signal it is inconsistent when, the main logic circuit control main controllable switch disconnects, and then disconnects main GPIO interface and described
Connection between cabinet GPIO interface；
Preparation controller reads the level signal in standby address wire, detects whether that there are master board, and detection are described standby
Whether control panel is abnormal, when not receiving active-standby switch signal that master controller transmits or standby control panel is deposited when abnormal,
Preparation controller exports the opposite level signal of the level signal in the standby address wire with reading by standby control line to standby logic electricity
Road, when receiving active-standby switch signal that master controller transmits and standby control panel is not deposited when abnormal, preparation controller passes through
Standby control line exports the consistent level signal of the level signal in the standby address wire with reading to standby logic circuit, and by standby
After control line exports the consistent level signal of the level signal in the standby address wire with reading to standby logic circuit, when standby control
For plate there are exception and when detecting the presence of master board, preparation controller exports standby main switching signal to master controller；When standby address
When level signal on line is consistent with the level signal on standby control line, the standby logic circuit control standby controllable switch is closed,
And then connect standby connection between GPIO interface and the cabinet GPIO interface；When the level signal in standby address wire is controlled with standby
When level signal on line is inconsistent, the standby logic circuit control standby controllable switch disconnects, so disconnect standby GPIO interface with
Connection between the cabinet GPIO interface；
Further, when master board there are exception and detects that the master controller exports there is no when standby control panel
Warning message；When standby control panel there are exception and detects that the preparation controller exports warning message there is no when master board.
Main address wire of the present invention be master board more main address wires in one of, pass through more main addresses
Level signal on line can obtain the address identification message of master board；The standby address wire is more standby ground of standby control panel
One of in the line of location, the address identification message of standby control panel can be obtained by the level signal in more standby address wires；
Switching tube Q1 and switching tube Q2 uses the NPN triode of model 2N3904；The XOR gate U1 and XOR gate U2 are used
74HC86 chips；Also parallel connection is connected to capacitance C1 and capacitance C3 between power vd D and ground；When standby control panel exists and is in normal shape
When state, preparation controller continues to send standby control panel presence signal to master controller, when standby control panel is not present or exception occurs,
Master controller does not receive the standby control panel presence signal that preparation controller sends over then, so master controller can determine out it is standby
Control panel whether there is, and similarly, when master board exists and is in normal condition, master controller continues to send out to preparation controller
Master board presence signal is sent, when master board is not present or exception occurs, preparation controller does not receive master controller hair then
The master board presence signal brought, and then preparation controller can determine out that master board whether there is；When master board is deposited
It in exception and detects there is no when standby control panel, the switching between master board and standby control panel, master controller can not be completed
Export alarm message reminding user；When standby control panel there are exception and detects that there is no when master board, can not complete standby control
Switching between making sheet and master board, preparation controller export alarm message reminding user；If currently taking over control by standby control panel
System power and scheduling power (i.e. standby GPIO interface is connected with cabinet GPIO interface to be connected), then when standby control panel exists abnormal and detects
To there are when master board, preparation controller exports standby main switching signal to master controller, if master board at this time is in normal shape
State, then in main address wire of the master controller according to the standby main switching signal received again through master control line output with reading
The consistent level signal of level signal is connected with cabinet GPIO interface and is connected to main logic circuit, main GPIO interface, and standby GPIO connects
Connection between mouth and cabinet GPIO interface disconnects.
Information exchange between Broadcast and TV system, distinct device, be using GPIO interface it is the most simple and reliable, cabinet
GPIO interface can define direction and function according to user, using flexible；The hot backup system of cabinet control panel needs master control
Making sheet and standby control panel can be separately connected the external GPIO interface of cabinet if necessary, as shown in Fig. 2, when in main address wire
When level signal is identical as the level signal on master control line, XOR gate U1 exports low level, then an input terminal of XOR gate U2
For low level, another input terminal connection power vd D anodes, are high level, and further, XOR gate U2 exports high level, switch
Pipe Q1 conductings, relay RL1 coils are powered, and normally opened contact is closed, and then main GPIO interface is connected with cabinet GPIO interface and connected,
Once master board operation irregularity, the level signal on master control line deflects and saltus step, when the level letter in main address wire
When number inconsistent with the level signal on master control line (opposite), XOR gate U1 exports high level, then two inputs of XOR gate U2
End is high level, and further, XOR gate U2 exports low level, and switching tube Q1 cannot be connected, relay RL1 coil blackouts,
The normally opened contact of relay RL1 is off, and then the connection between main GPIO interface and cabinet GPIO interface disconnects, together
Sample, as shown in figure 3, when the level signal in standby address wire is identical as the level signal on standby control line, XOR gate U3 is defeated
Go out low level, then an input terminal of XOR gate U4 is low level, and another input terminal connection power vd D anodes, are high level, into one
Step ground, XOR gate U4 export high level, switching tube Q2 conductings, and relay RL2 coils are powered, and normally opened contact is closed, Jin Erbei
GPIO interface is connected with cabinet GPIO interface and is connected, once standby control board work is abnormal, the level signal on standby control line occurs
Deflection and saltus step, when the level signal and inconsistent (opposite) level signal on standby control line in standby address wire, XOR gate
U3 exports high level, then two input terminals of XOR gate U4 are high level, and further, XOR gate U4 exports low level, switch
Pipe Q2 cannot be connected, and relay RL2 coil blackouts, the normally opened contact of relay RL2 is off, and then standby GPIO interface
Connection between cabinet GPIO interface disconnects.When master board exception, control and scheduling power release, standby control panel connect
Pipe control and the power of dispatching continue to cabinet normal work, in standby control panel take over control and dispatch temporary, if standby control
Plate is abnormal, then master board continues take over control and scheduling power continues to cabinet normal work；The present invention can safely may be used
The good operation for ensureing hot backup system by ground can effectively ensure that during broadcast when for broadcasting and TV field and be not in
It interrupts.
Master board of the present invention and the control of standby the control panel automatism isolation in physical connection, will not affect one another；This hair
The bright control for being primarily adapted for use in GPIO external interfaces in hot backup system, can realize internal system physical interface and exterior
Active and standby control between GPIO interface is automatically switched, using hardware controls mode, compared with the existing technology in be based on software and journey
The control mode of sequence, reliability and safety for guarantee system are advantageously.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Any one skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (7)
1. a kind of GPIO control devices of hot backup system, the hot backup system includes master board, standby control panel and cabinet；
The master board has main GPIO interface；The standby control panel has standby GPIO interface；There is the cabinet cabinet GPIO to connect
Mouthful；The master board has main address wire；The standby control panel has standby address wire, it is characterised in that the GPIO controls dress
Set including：
Configure the main controllable switch in master board；The main controllable switch is placed in the main GPIO interface and the cabinet
Between GPIO interface, for being switched on or switched off the connection between the main GPIO interface and the cabinet GPIO interface；
It configures in master board, the master controller being connected with main address wire, preparation controller and main logic circuit；The master control
Device processed is used to read the level signal in main address wire, detects whether there is standby control panel, whether different detects the master board
Often, and when master board is there is no when exception, the level signal exported by master control line in the main address wire with reading is consistent
Level signal to main logic circuit, when master board is deposited when abnormal, pass through master control line output with the main address wire read
On the opposite level signal of level signal to main logic circuit, when master board there are exception and detects the presence of standby control panel
When, active-standby switch signal is exported to preparation controller；
It configures in master board, the main logic circuit being connected with main controllable switch, main address wire and master control line；When main
When level signal on the line of location is consistent with the level signal on master control line, the main logic circuit controls the main controllable switch
It is closed, and then connects the connection between main GPIO interface and the cabinet GPIO interface；When in main address wire level signal with
When level signal on master control line is inconsistent, the main logic circuit control main controllable switch disconnects, and then disconnects master
Connection between GPIO interface and the cabinet GPIO interface；
Configure the standby controllable switch on standby control panel；The standby controllable switch is placed in the standby GPIO interface and the cabinet
Between GPIO interface, for being switched on or switched off the connection between the standby GPIO interface and the cabinet GPIO interface；
Configuration is on standby control panel, with standby address wire, master controller and the preparation controller being connected for logic circuit；The standby control
Device processed is used to read the level signal in standby address wire, detects whether, there are master board, whether different to detect the standby control panel
Often, when not receiving active-standby switch signal that master controller transmits or standby control panel is deposited when abnormal, pass through standby control line
The level signal opposite with the level signal in the standby address wire read is exported to standby logic circuit；The preparation controller is additionally operable to
When receiving active-standby switch signal that master controller transmits and standby control panel is not deposited when abnormal, passes through standby control line and export
With the level signal in the standby address wire read, consistent level signal gives standby logic circuit, and same by standby control line output
The consistent level signal of level signal in the standby address wire read is given after standby logic circuit, when standby control panel exist exception and
When detecting the presence of master board, standby main switching signal is exported to master controller；
Configuration is on standby control panel, with standby controllable switch, standby address wire and the standby logic circuit being connected for control line；When standby ground
When level signal on the line of location is consistent with the level signal on standby control line, the standby logic circuit controls the standby controllable switch
It is closed, and then connects standby connection between GPIO interface and the cabinet GPIO interface；When in standby address wire level signal with
When level signal on standby control line is inconsistent, the standby logic circuit control standby controllable switch disconnects, and then disconnects standby
Connection between GPIO interface and the cabinet GPIO interface.
2. the GPIO control devices of hot backup system according to claim 1, it is characterised in that when there are different for master board
Often and detect that the master controller exports warning message there is no when standby control panel；When standby control panel exists abnormal and detects
To there is no when master board, the preparation controller exports warning message.
3. the GPIO control devices of hot backup system according to claim 1, it is characterised in that the GPIO control devices
Further include for main logic circuit and standby power logic circuitry power vd D and for main controllable switch and standby controllable
Switch the power supply VCC of power supply.
4. the GPIO control devices of hot backup system according to claim 3, it is characterised in that the main controllable switch is adopted
It is serially connected between main GPIO interface and cabinet GPIO interface with the normally opened contact of relay RL1, relay RL1；The master patrols
Collecting circuit includes：XOR gate U1, XOR gate U2, resistance R1, switching tube Q1, resistance R2, capacitance C2 and diode D1；The exclusive or
Two input terminals of door U1 are separately connected main address wire and master control line；The output end of the XOR gate U1 connects the XOR gate U2
An input terminal, another input terminal of the XOR gate U2 connects the power vd D anodes；The output end of the XOR gate U2 passes through
By resistance R1 connecting valve pipe Q1 base stages；The switching tube Q1 emitters ground connection, the switching tube Q1 collectors are via resistance R2
Connect one end of relay RL1 coils, the other end connection power supply VCC anodes of relay RL1 coils；The capacitance C2 with it is described
Resistance R2 is in parallel；The diode D1 is connected in parallel on the coil both ends of relay RL1.
5. the GPIO control devices of hot backup system according to claim 3 or 4, it is characterised in that the standby controllable switch
Using relay RL2, the normally opened contact of relay RL2 is serially connected between GPIO interface and cabinet GPIO interface；It is described standby
Logic circuit includes：XOR gate U3, XOR gate U4, resistance R3, switching tube Q2, resistance R4, capacitance C4 and diode D2；It is described different
Or two input terminals of door U3 are separately connected standby address wire and standby control line；The output end of the XOR gate U3 connects the XOR gate
Another input terminal of an input terminal of U4, the XOR gate U4 connects the power vd D anodes；The output end of the XOR gate U4
Via resistance R3 connecting valve pipe Q2 base stages；The switching tube Q2 emitters ground connection, the switching tube Q2 collectors are via resistance
One end of R4 connection relay RL2 coils, the other end connection power supply VCC anodes of relay RL2 coils；The capacitance C4 and institute
It is in parallel to state resistance R4；The diode D2 is connected in parallel on the coil both ends of relay RL2.
6. a kind of GPIO control methods of hot backup system, the hot backup system includes master board, standby control panel and cabinet；
The master board has main GPIO interface；The standby control panel has standby GPIO interface；There is the cabinet cabinet GPIO to connect
Mouthful；The master board has main address wire；The standby control panel has standby address wire, it is characterised in that the GPIO controlling parties
Method includes the following steps：
Main controllable switch, main logic circuit and master controller are configured in master board in advance, and is configured on standby control panel
Standby controllable switch, standby logic circuit and preparation controller；The main controllable switch is placed in the main GPIO interface and the cabinet
Between GPIO interface, the standby controllable switch is placed between the standby GPIO interface and the cabinet GPIO interface；The master control
Device processed is connected with main address wire, preparation controller, and connects main logic circuit by master control line；The main logic circuit and institute
State main controllable switch, main address wire is connected；
Master controller reads the level signal in main address wire, detects whether there is standby control panel, and the detection main control
Whether plate is abnormal, and when master board is there is no when exception, master controller passes through master control line and exports in the main address wire read
The consistent level signal of level signal to main logic circuit, when master board is deposited when abnormal, master controller passes through main control
Line exports the opposite level signal of the level signal in the main address wire with reading to main logic circuit, when there are different for master board
When often and detecting the presence of standby control panel, master controller exports active-standby switch signal to preparation controller；Electricity in main address wire
When ordinary mail number is consistent with the level signal on master control line, the main logic circuit control main controllable switch is closed, and then is connected
Connection between main GPIO interface and the cabinet GPIO interface；Electricity in the level signal and master control line in main address wire
When ordinary mail number is inconsistent, the main logic circuit control main controllable switch disconnects, and then disconnects main GPIO interface and the cabinet
Connection between GPIO interface；
Configuration is on standby control panel, with standby address wire, master controller and the preparation controller being connected for logic circuit；The standby control
Device processed is used to read the level signal in standby address wire, detects whether, there are master board, whether different to detect the standby control panel
Often, when not receiving active-standby switch signal that master controller transmits or standby control panel is deposited when abnormal, pass through standby control line
The level signal opposite with the level signal in the standby address wire read is exported to standby logic circuit；The preparation controller is additionally operable to
When receiving the active-standby switch signal that master controller transmits, by standby control line output in the standby address wire read
The consistent level signal of level signal gives standby logic circuit, and is passing through the electricity in the standby same standby address wire read of control line output
The consistent level signal of ordinary mail number is given after standby logic circuit, when standby control panel there are exception and detects the presence of master board
When, standby main switching signal is exported to master controller；
Preparation controller reads the level signal in standby address wire, detects whether that there are master boards, and the detection standby control
Whether plate is abnormal, when not receiving active-standby switch signal that master controller transmits or standby control panel is deposited when abnormal, standby control
Device processed export the opposite level signal of the level signal in the standby address wire with reading by standby control line to for logic circuit, when
It receives the active-standby switch signal that master controller transmits and standby control panel is not deposited when abnormal, preparation controller passes through standby control
Line exports the consistent level signal of the level signal in the standby address wire with reading to standby logic circuit, and is passing through standby control line
After the level signal consistent with the level signal in the standby address wire read is exported to standby logic circuit, when standby control panel exists
Exception and when detecting the presence of master board, preparation controller exports standby main switching signal to master controller；When in standby address wire
When level signal is consistent with the level signal on standby control line, the standby logic circuit control standby controllable switch is closed, Jin Erjie
Logical standby connection between GPIO interface and the cabinet GPIO interface；When in the level signal and standby control line in standby address wire
When level signal is inconsistent, the standby logic circuit control standby controllable switch disconnects, and then disconnects standby GPIO interface and the machine
Connection between case GPIO interface.
7. the GPIO control methods of hot backup system according to claim 6, it is characterised in that when there are different for master board
Often and detect that the master controller exports warning message there is no when standby control panel；When standby control panel exists abnormal and detects
To there is no when master board, the preparation controller exports warning message.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104111881A (en) * | 2014-07-25 | 2014-10-22 | 中国航天科工集团第二研究院七〇六所 | Arbitration device for double computer redundancy hot backup computer |
| CN104618009A (en) * | 2015-02-15 | 2015-05-13 | 桂林恒毅金宇通信技术有限公司 | Optical fiber tandem connection device hot backup protection system |
| CN104702386A (en) * | 2015-03-17 | 2015-06-10 | 成都智慧之芯科技有限公司 | Full-network-based centralized control system and method |
| CN204425346U (en) * | 2015-02-15 | 2015-06-24 | 桂林恒毅金宇通信技术有限公司 | Optical fiber serial connection equipment Hot Spare protection system |
| CN105159798A (en) * | 2015-08-28 | 2015-12-16 | 浪潮集团有限公司 | Dual-machine hot-standby method for virtual machines, dual-machine hot-standby management server and system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104111881A (en) * | 2014-07-25 | 2014-10-22 | 中国航天科工集团第二研究院七〇六所 | Arbitration device for double computer redundancy hot backup computer |
| CN104618009A (en) * | 2015-02-15 | 2015-05-13 | 桂林恒毅金宇通信技术有限公司 | Optical fiber tandem connection device hot backup protection system |
| CN204425346U (en) * | 2015-02-15 | 2015-06-24 | 桂林恒毅金宇通信技术有限公司 | Optical fiber serial connection equipment Hot Spare protection system |
| CN104702386A (en) * | 2015-03-17 | 2015-06-10 | 成都智慧之芯科技有限公司 | Full-network-based centralized control system and method |
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