CN103186250B - Remote management system and remote management method - Google Patents
Remote management system and remote management method Download PDFInfo
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- CN103186250B CN103186250B CN201210575835.0A CN201210575835A CN103186250B CN 103186250 B CN103186250 B CN 103186250B CN 201210575835 A CN201210575835 A CN 201210575835A CN 103186250 B CN103186250 B CN 103186250B
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Abstract
The invention discloses a remote management system and a remote management method. The remote management system alternately switches between two different computer ports through the switching module to divide a physical image processing channel into more than two virtual image processing channels, thereby providing more image processing channels in a virtual mode. Therefore, even if the network type KVM switch only has 4 hardware-formed image processing channels, the remote management system can provide independent image sources for more than 5 central control computers (including more than 5 central control computers).
Description
Technical field
The present invention is relevant with telemanagement, particularly about a kind of long-distance management system and the method for remote management that can provide more Image processing channel in a virtual manner.
Background technology
Multi-computer switch (Keyboard-Video-Mouseswitch; KVMswitch) make user single group of keyboard, screen and mouse can carry out management and control multiple computers, and network-type multi-computer switch (IP-basedKVMSwitch) further make the user of desktop or notebook computer can be positioned at long-range controlled computer and the picture that transmits via network of viewing controlled computer by network management multiple stage.For example, thus, the supvr being positioned at Taiwan is just positioned at server in the middle of U.S.'s machine room by network-type multi-computer switch by telemanagement.With Remote software (such as VNC) unlike, network-type multi-computer switch is external in a hardware unit of controlled computer, do not need the operating system depending on controlled computer, even if controlled computer is in the BIOS stage or because fault and under cannot being loaded into the situation of operating system, network-type multi-computer switch is the desktop images that exports of fechtable controlled computer still, and by Long-distance Control controlled computer.
Network-type multi-computer switch can directly connect via one or more computer terminal port the analog image signal that one or more controlled computer exports to receive this one or more controlled computer, then by image process unit (passage), those analog image signals is converted to multiple continuous print digital still image frame.Generally each static image frame can be divided into several block again, after comparing the block found out corresponding to the static image frame of front and back two, the discrepant block of pixel value can be found out.Afterwards can via the pixel value of these discrepant blocks of the Coding Compression Technology of JPEG with the form of network package via network be sent to long-range in control computer, be arranged in after these packages carry out decoding and processing by long-range control computer and just can see these pictures by its screen.Network-type multi-computer switch general is at present about 30 frames (30FramePerSecond) per second in the image renewal frequency of middle control computer end.
Simultaneously, the control signal of the class of its keyboard or mouse also can be sent to network-type multi-computer switch by network by middle control computer, and the destination that network-type multi-computer switch identifies these control signals is after controlled computer, just these control signals can be turned again and pass to controlled computer, and controlled computer is after receiving these control signals, just signal of video signal can be exported to network-type multi-computer switch according to these control signals, via the above-mentioned image processing of network-type multi-computer switch, the user of middle control computer can see the image output of controlled computer on its screen, thus, the user of control computer just by telemanagement and can control the multiple stage controlled computer that this network-type multi-computer switch connects, even if middle control computer and controlled computer distant, user still can feel to walk back and forth Buddhist as direct manipulation controlled computer.
In addition, the computer terminal port of the network-type multi-computer switch of some type also can not be connected directly to the keyboard/screen/nozzle outlet openings of controlled computer, but extends the distance between network-type multi-computer switch and controlled computer with the framework of computer terminal port-adapter (Adapter)-controlled computer.Adapter is generally also referred to as computer interfaceJi Suanjijiekou module (ComputerInterfaceModule; CIM), Dongle, server module (ServerInterfaceModule; Or RIP (RackInterfacePod) SIM).
Although existing network-type multi-computer switch can connect the controlled computer up at least 32 to 40, but be in fact limited to its a limited number of Image processing channel, the independent image number that can be supplied to long-range middle control computer is far smaller than 32, in general, the Image processing channel of a current network-type multi-computer switch at most only has four, so only can carry out above-mentioned image processing to 4 Image sources at most simultaneously, that is only can provide at most maximum 4 independently image number to the long-range middle control computer on network.In other words, under identical user's authority, control computer occupy this 4 Image processing channel if had in 4, the 5th user also can only watch the image identical with control computer in these 4 after logining network-type multi-computer switch.
Therefore, be necessary in fact to propose settling mode for the problems referred to above.
Summary of the invention
The present invention proposes a kind of long-distance management system and method for remote management, provides a kind of virtual image treatment channel in long-distance management system, in the mode under the existing hardware structure not changing long-distance management system, solves the problems referred to above that prior art suffers from.
Long-distance management system disclosed by the present invention and method for remote management are under the prerequisite not changing the hardware structure cost increasing network-type multi-computer switch, alternately switched between two different computer terminal ports by handover module, to provide more Image processing channel by virtual mode.Such as when user determine with the mode of virtual image treatment channel to its certain two controlled computer of select carry out image capture and process time, handover module can automatically alternately switch between the two different computer terminal ports that these two controlled computers are corresponding, and the odd number image frame captured can be supplied in one first controls computer; The even number image frame captured can be supplied in one second controls computer.Single entity Image processing channel like this just can become two virtual image treatment channel.In like manner, according to spirit of the present invention, single entity Image processing channel also can become the virtual image treatment channel of more than three or three.
In a specific embodiment, long-distance management system of the present invention is in order to will control computer via network-coupled to P platform controlled computer in M platform.Long-distance management system comprises long-distance management device and M Remote program.Long-distance management device comprises Q Image processing channel, handover module, central processing unit, coding module and network interface controller.
Long-distance management device has P computer terminal port, in order to couple P platform controlled computer respectively.M Remote program is executed in respectively to be controlled on computer in this M platform, in order to carry out network communication with this long-distance management device, with make to control in this M platform in computer in one or more to control computer produce and move relevant control signal with keyboard or vernier and can be transferred into long-distance management device, and then management long-distance management device and control this P platform controlled computer.Wherein this P computer terminal port more receives one or more signal of video signal that this P controlled computer exports according to this control signal.
Q Image processing channel is in order to carry out image processing to the one or more signal of video signal from P computer terminal port, and wherein Q is less than or equal to P.Handover module is in order to be coupled to P computer terminal port by Q Image processing channel.
Central processing unit and Q Image processing channel and handover module form communication, and a control Q Image processing channel and handover module, and then make can the sample frequency of N number of image frame per second to sample to the signal of video signal from same computer terminal port from a certain Image processing channel selected by Q Image processing channel in the flrst mode.Can the sample frequency of a N1 per second image frame sample to obtain the first sampled data to a certain signal of video signal from a certain Image processing channel selected by Q Image processing channel under the second mode, and Image processing channel also samples to obtain the second sampled data to another signal of video signal from different computers port with the sample frequency of a N2 per second image frame, wherein N1 adds that N2 is equal to or less than N.
Coding module in order to encode to the first sampled data and the second sampled data, to obtain first coding data and the second coded data respectively.Network interface controller and central processing unit form communication, first coding data and the second coded data be converted into package at least partly after, package is sent in M platform in the difference controlled selected by computer via network and controls computer, to make long-distance management device that at least Q+1 picture can be provided to control computer in the Q+1 platform controlled in M platform in computer, and Q+1 picture corresponds to the Q+1 platform controlled computer in P platform controlled computer respectively.
In another specific embodiment, long-distance management system of the present invention is in order to control computer via network-coupled to the first controlled computer and the second controlled computer by controlling in first in computer and second.Long-distance management system comprises long-distance management device, the first procedure code and the second procedure code.One end of long-distance management device is coupled to the first controlled computer and the second controlled computer.First procedure code is executed in first to be controlled on computer, in order to carry out network communication with long-distance management device, with make to control in first computer produce and move the first relevant control signal with keyboard or vernier and can be transferred into long-distance management device.Second procedure code is executed in second to be controlled on computer, in order to carry out communication with long-distance management device via network, with make to control in second computer produce and move the second relevant control signal with keyboard or vernier and can be transferred into long-distance management device.
Long-distance management device comprises the first computer terminal port, the second computer terminal port, Image processing channel, handover module, central processing unit and network interface controller.First computer terminal port corresponds to the first controlled computer and receives the first signal of video signal that the first controlled computer exports according to the first control signal.Second computer terminal port corresponds to the second controlled computer and receives the second signal of video signal that the second controlled computer exports according to the second control signal.Image processing channel is in order to carry out image processing to the first signal of video signal or the second signal of video signal.Image processing channel is coupled to the first computer terminal port and the second computer terminal port by handover module.Central processing unit and Image processing channel and handover module form communication.
In the flrst mode, the first signal of video signal or the second signal of video signal can be converted to N number of static image frame per second by Image processing channel.Under the second mode, handover module alternately switches between the first computer terminal port and the second computer terminal port, N1 per second static image frame can be converted to by Image processing channel to make the first signal of video signal, second signal of video signal can be converted to N2 per second static image frame by Image processing channel, and N1 adds that N2 is equal to or less than N.Network interface controller and central processing unit form communication, in order at least part of block of those static image frames is converted to package.In the flrst mode the package representing at least part of block of N number of static image frame is sent in first to control in computer or second via network and controls computer; Or the package representing at least part of block of N1 per second static image frame is sent in first via network controls computer under the second mode, and the package representing at least part of block of N2 per second static image frame is sent in second via network controls computer.
In another specific embodiment, method for remote management of the present invention is in order to will control computer via a network-coupled to P platform controlled computer in M platform.This method for remote management comprises the following step: provide long-distance management device, long-distance management device has P computer terminal port, a Q Image processing channel and handover module, wherein Q is less than or equal to P, couples P platform controlled computer respectively with the P of a long-distance management device computer terminal port; M Remote program is performed respectively at controlling in M platform on computer, to carry out network communication with long-distance management device, make to control in M platform in computer in one or more to control computer produce and move relevant control signal with keyboard or vernier and can be transferred into long-distance management device, and then manage long-distance management device and control P platform controlled computer, make one or more signal of video signal that P computer terminal port reception P controlled computer exports according to control signal; With Q Image processing channel, image processing is carried out to the one or more signal of video signal from P computer terminal port; With handover module, Q Image processing channel is coupled to P computer terminal port; A control Q Image processing channel and handover module, and then make can the sample frequency of N number of image frame per second to sample to the signal of video signal from same computer terminal port from a certain Image processing channel selected by Q Image processing channel in the flrst mode; Can the sample frequency of a N1 per second image frame sample to obtain the first sampled data to a certain signal of video signal from a certain Image processing channel selected by Q Image processing channel under the second mode, and Image processing channel also samples to obtain the second sampled data to another signal of video signal from different computers port with the sample frequency of a N2 per second image frame, wherein N1 adds that N2 is equal to or less than N; First sampled data and the second sampled data are encoded, to obtain first coding data and the second coded data respectively; First coding data and the second coded data be converted into package at least partly after, package is sent in M platform in the difference controlled selected by computer via network and controls computer, to make long-distance management device that at least Q+1 picture can be provided to control computer in the Q+1 platform controlled in M platform in computer, and Q+1 picture corresponds to the Q+1 platform controlled computer in P platform controlled computer respectively.
Compared to prior art, under the prerequisite not increasing network-type multi-computer switch hardware cost, (existing hardware structure is not changed) according to long-distance management system of the present invention and method for remote management, alternately switched between two different computer terminal ports by handover module, to provide more Image processing channel by virtual mode.Therefore, even if network-type multi-computer switch only has the Image processing channel that 4 hardware are formed, long-distance management system and method for remote management also can provide independently Image sources to the middle control computer more than 5 (containing).
Can be further understood by the following detailed description and accompanying drawings about the advantages and spirit of the present invention.
Accompanying drawing explanation
Fig. 1 illustrates the schematic diagram coupling pass between long-distance management system of the present invention and middle control computer and controlled computer.
Fig. 2 illustrates the functional block diagram of the long-distance management system in Fig. 1.
Fig. 3 illustrates Image processing channel and samples to the signal of video signal from same computer terminal port under first mode.
Fig. 4 A and Fig. 4 B illustrates Image processing channel and alternately samples to the different images signal from different computers port under the second pattern.
Fig. 5 A is illustrated in divided frame and full screen display under the 3rd pattern and is presented in respectively on two screens that middle control computer connects.
Fig. 5 B is illustrated in double screen display under four-mode and is presented in respectively on two screens that middle control computer connects.
Fig. 6 A and Fig. 6 B illustrates the process flow diagram according to the long-distance management system How It Works in another specific embodiment of the present invention.
[main element symbol description]
S10 ~ S26: process step RG
1~ RG
m: Remote program
1: long-distance management system 10: long-distance management device
CH
1~ CH
q, CH: Image processing channel
SW: handover module 12: central processing unit
16: network interface controller 300: differential receiver module
301: analog-to-digital converting module 302: digital signal processing module
P
1~ P
p: computer terminal port W: network
A
1~ A
m: middle control computer B
1~ B
p: controlled computer
CD
1: the first procedure code CD
2: the second procedure code
SG
1~ SG
5: the first signal of video signal ~ the 5th signal of video signal
MR
1~ MR
4: screen F
1, F
2: sample frequency
H: divided frame J: full screen shows
H1 ~ H4: Image sources CUR: vernier
KB: keyboard MS: mouse
DS: display
Embodiment
A preferred embodiment according to the present invention is a kind of long-distance management system.This long-distance management system is in order to will control computer via network-coupled to multiple stage controlled computer in multiple stage.What need first illustrate is, the Image processing channel of the long-distance management device (network-type multi-computer switch) adopted due to current long-distance management system at most only has 4, thus only can provide at most maximum 4 independently image number to the long-range middle control computer on network.But, long-distance management system of the present invention is owing to alternately switching between two different computer terminal ports by its handover module, therefore can under the prerequisite of hardware cost not increasing long-distance management device, there is provided more Image processing channel by virtual mode, use and provide independently Image sources to controlling computer in more multiple stage.
Please refer to Fig. 1, Fig. 1 illustrates the schematic diagram coupling pass between long-distance management system of the present invention and middle control computer and controlled computer.As shown in Figure 1, in this embodiment, the long-distance management device 10 of long-distance management system 1 controls computer A by network W by M platform
1~ A
mbe coupled to P platform controlled computer B
1~ B
p.So, computer A is controlled in M platform
1~ A
mlong-distance management device 10 is coupled to, to manage or control P platform controlled computer B by network W
1~ B
p.At controlled computer B
pand there is a computer interfaceJi Suanjijiekou module CIM, in order to extend in controlled computer B between long-distance management device 10
pand the distance between long-distance management device 10.In addition, long-distance management device 10 also can have a local side keyboard, screen and mouse.
Computer interfaceJi Suanjijiekou module CIM is a device being external in controlled computer, it has a housing and several are by the outward extending cable of housing, there is multiple connector, such as VGA connector and USB connector, in order to be electrically connected a certain controlled computer at cable away from one end of housing.Have in the art and usually know that the knowledgeable can be cognitive, controlled computer, this USB connector can be replaced by PS/2 or other connectors; VGA connector can be replaced by DVI connector or HDMI connector.In addition, the housing HS of computer interfaceJi Suanjijiekou module is more provided with RJ-45 interface, such as, in order to connect CAT-5 cable or other similar cable, CAT-5e or CAT-6.
Long-distance management device 10 is exported to, to increase the distance (such as can reach 1000 feet) that this image can transmit after the image (being generally single-ended signal) that controlled computer can export by the differential driving module (DifferentialDriver) of computer interfaceJi Suanjijiekou module is converted to multiple differential signal of video signal.In fact, in these differential signal of video signal, other signals also may be mingled with, such as vertical/horizontal synchronizing signal or some test signals in order to the decay or colour cast (skew) that detect image.In a preferred embodiment, the differential driving module of computer interfaceJi Suanjijiekou module can be AD8146, AD8147 or AD8148 that AnalogDevices company provides.
In practical application, in M platform, control computer A
1~ A
mcan be the electronic installation that user holds, the hand-held action devices such as such as desktop computer, notebook computer, smart mobile phone, personal digital assistant (PersonalDigitalAssistant, PDA) or gps satellite guider; P platform controlled computer B
1~ B
pcan be long-range computer apparatus, such as various server, desktop computer or notebook computer.It should be noted that, be no matter the kind of middle control computer and controlled computer, pattern and quantity, be not all limited with above-mentioned example.Can be world-wide web, Local Area Network as network W, the such as network of Ethernet or other any patterns, there is no specific restriction.
Then, please refer to Fig. 2, Fig. 2 illustrates the functional block diagram of long-distance management system 1 of the present invention.As shown in Figure 2, long-distance management system 1 includes long-distance management device 10 and M Remote program RG
1~ RG
m.Long-distance management device 10 includes P computer terminal port P
1~ P
p, a Q Image processing channel CH
1~ CH
q, handover module SW, central processing unit 12 and network interface controller 16.Wherein, computer A is controlled in M platform
1~ A
mnetwork interface controller 16 is coupled to by network W; P platform controlled computer B
1~ B
pbe coupled to P computer terminal port P respectively
1~ P
p; Central processing unit 12 couples P computer terminal port P respectively
1~ P
p, a Q Image processing channel CH
1~ CH
q, handover module SW and network interface controller 16; The output terminal of handover module SW couples Q Image processing channel CH respectively
1~ CH
q; Q Image processing channel CH
1~ CH
qall be coupled to network interface controller 16 by central processing unit 12.In addition, one group of local side keyboard KB and mouse MS can be coupled to central processing unit 12, and local side display DS can be coupled to the output terminal of handover module SW.
In a preferred embodiment, the switching matrix that handover module SW can be made up of multiple crosspoint switch (CrosspointSwitch), the AD8177 such as provided by multiple AnalogDevices company, or the switching matrix to be made up of multiple multiplexer (Multiplexer), it has 40 input ends and 5 output terminals.Each Image processing channel CH
1~ CH
qcomprise an analog-to-digital converting module 301 respectively.In addition, when long-distance management device 10 couples controlled computer B with aforesaid computer interfaceJi Suanjijiekou module CIM
1~ B
ptime, each Image processing channel CH
1~ CH
qalso a differential receiver module (DifferentialReceiver) 300 is optionally comprised, the AD8145 that such as AnalogDevices company provides, in order to be first reduced to single-ended signal of video signal by differential signal of video signal carrying out simulating to digital conversion.
In this embodiment, M Remote program is executed in M platform respectively controls computer A
1~ A
mon, in order to carry out communication by the long-distance management device 10 in network W and long-distance management system 1, to make to control computer A in M platform
1~ A
min one or more in control computer produce and move a relevant control signal with keyboard or vernier and can be transferred into long-distance management device 10, and then management long-distance management device 10 and control P platform controlled computer B
1~ B
p.In addition, this Remote program also can provide a management interface, for controlling computer A in platform
1~ A
muser by long-range, long-distance management system 1 is managed.This Remote program can be combination or other any suitable application programs of a web browser (WebBrowser), web browser and a plug-in program.Computer A is controlled in this Remote program foundation
1~ A
mthe difference of operating system may have different versions.This plug-in program provided by the supplier of long-distance management system.As P platform controlled computer B
1~ B
pin one or more controlled computer when receiving control signal, Remote program makes this or this multiple stage controlled computer will export one or more signal of video signal according to control signal with coordinating of long-distance management system 1.
Because long-distance management device 10 is respectively by its P computer terminal port P
1~ P
pcouple P platform controlled computer B
1~ B
p, so P computer terminal port P
1~ P
pone or more signal of video signal that this or this multiple stage controlled computer exports will be received.After selection via handover module SW, Q Image processing channel CH
1~ CH
qthen can to from P computer terminal port P
1~ P
pone or more (more than Q or Q) signal of video signal carry out image processing, wherein Q is less than or equal to P.Generally speaking, the Image processing channel that a current long-distance management device 10 possesses at most only has 4, that is Q is less than or equal to 4.Suppose that Q equals 4, that is long-distance management device 10 have 4 entity Image processing channel CH
1~ CH
4but, these 4 Image processing channel CH
1~ CH
4image processing can be carried out, to produce the image that can be supplied to middle control computer more than 4 independently to the multiple signal of video signal from more than 4 computer terminal ports.
Q Image processing channel CH
1~ CH
qin each Image processing channel include differential receiver module 300, analog-to-digital converting module 301 and digital signal processing module 302 respectively.Wherein, differential receiver module 300 in order to after the differential wave being received from handover module SW is converted to single-ended signal, then is converted to digital signal by analog-to-digital converting module 301, and carries out follow-up signal process by digital signal processing module 302.But, in a further preferred embodiment, also same differential receiver module 300 can be shared by multiple analog-to-digital converting module 301 and digital signal processing module 302.
Central processing unit 12 and Q Image processing channel CH
1~ CH
qand handover module SW forms communication, and control Q Image processing channel CH
1~ CH
qand the running of handover module SW.In this embodiment, central processing unit 12 can control handover module SW optionally by the P of long-distance management device 10 computer terminal port P
1~ P
pbe coupled to Q Image processing channel CH
1~ CH
q, that is central processing unit 12 can control handover module SW by P computer terminal port P
1~ P
pin arbitrary computer terminal port be coupled to Q Image processing channel CH
1~ CH
qin arbitrary Image processing channel, also can make P computer terminal port P
1~ P
pin arbitrary computer terminal port and Q Image processing channel CH
1~ CH
qbetween form open circuit.
For example, central processing unit 12 can control handover module SW by Image processing channel CH
1couple computer terminal port P
1, cause Image processing channel CH
1received controlled computer B
1be sent to computer terminal port P
1the first signal of video signal, and Image processing channel CH
1image processing can be carried out to the first signal of video signal.Certainly, central processing unit 12 also can control handover module SW switching Image processing channel CH
1couple computer terminal port P
2, cause Image processing channel CH
1received controlled computer B
2be sent to computer terminal port P
2the second signal of video signal, and Image processing channel CH
1image processing can be carried out to the second signal of video signal.
In the present invention, from Q Image processing channel CH
1~ CH
qin selected a certain Image processing channel can be divided into following two kinds to the operator scheme that the signal of video signal from computer terminal port is sampled:
Under physical channel pattern (first mode), Image processing channel CH
1the sample frequency of N number of image frame per second the signal of video signal from same computer terminal port can be sampled, and by analog-to-digital converting module 301, the signal of video signal from same computer terminal port is converted to continuous print N number of static image frame per second.For example, as shown in Figure 3, when central processing unit 12 controls handover module SW by computer terminal port P
1be coupled to Image processing channel CH
1time, be in the Image processing channel CH under first mode
1will with the sample frequency of N number of image frame per second to computer terminal port P
1be received from controlled computer B
1the first signal of video signal SG
1sample, and by analog-to-digital converting module 301 by the first signal of video signal SG
1be converted to continuous print N number of static image frame per second.In fact, N can be 30, that is is in the Image processing channel CH under first mode
1to the first signal of video signal SG
1sample frequency can be 30 image frames per second, but not as limit.
Refer to Fig. 4 A and Fig. 4 B, under tunnel pattern (the second pattern), Image processing channel CH
2the sample frequency of a N1 per second image frame signal of video signal from a computer terminal port can be sampled, to obtain the first sampled data, and be converted into N1 per second static image frame by analog-to-digital converting module 301, and Image processing channel CH
2also with the sample frequency of a N2 per second image frame, another signal of video signal from another computer terminal port is sampled, to obtain the second sampled data, and be converted into N2 per second static image frame by analog-to-digital converting module 301, wherein N1 adds that N2 is equal to or less than N.That is, the central processing unit 12 be under the second pattern can control handover module SW in two different computer terminal port (such as computer terminal port P
2and P
3) between alternately switch.For example, as shown in Figure 4 A, under the very first time, when central processing unit 12 controls handover module SW by Image processing channel CH
2couple computer terminal port P
2time, Image processing channel CH
2can the sample frequency of a N1 per second image frame to computer terminal port P
2be received from controlled computer B
2the second signal of video signal SG
2sample, to obtain the first sampled data, and be converted into N1 per second static image frame by analog-to-digital converting module 301; As shown in Figure 4 B, under the second time, switch Image processing channel CH when central processing unit 12 controls handover module SW
2couple computer terminal port P
3time, Image processing channel CH
2can the sample frequency of a N2 per second image frame to computer terminal port P
3be received from controlled computer B
3the 3rd signal of video signal SG
3sample, to obtain the second sampled data, and be converted into N2 per second static image frame by analog-to-digital converting module 301.Under the 3rd time, again can as shown in Figure 4 A, central processing unit 12 controls handover module SW by Image processing channel CH
2couple computer terminal port P
2; Under the 4th time, again can as shown in Figure 4 B, central processing unit 12 controls handover module SW and switches Image processing channel CH
2couple computer terminal port P
3, all the other can the rest may be inferred, do not repeat separately.
In fact, due in the sampling process under first mode (as shown in Figure 3), except non-user assigns the instruction switching computer terminal port, otherwise handover module SW can't carry out the action switched, but in the sampling process of the second pattern (as shown in fig. 4 a and fig. 4b), even if user does not assign the instruction switching computer terminal port, handover module SW still can be subject to the control of central processing unit 12, in two different computer terminal port (such as computer terminal port P
1and P
2) between alternately carry out the effect that switches to realize two virtual image treatment channel.Therefore, under identical a period of time (such as a second), Image processing channel CH
2the number (N number of) of the image frame sampled under first mode will be greater than (or equaling) Image processing channel CH
2the number summation (N1+N2) of the image frame sampled under the second pattern.For example, suppose that N equals 30, and N1 and N2 is equal to 10, that is Image processing channel CH
2the sample frequency adopted under first mode is 30 image frames per second, and Image processing channel CH
2under the second pattern can the sample frequency of 10 image frames per second to computer terminal port P
2the second signal of video signal SG
2sample, and with the sample frequency of 10 image frames per second to computer terminal port P
3the 3rd signal of video signal SG
3sample.
Then, Image processing channel CH
2digital signal processing module 302 can first those static image frames above-mentioned are divided into multiple block after, again the corresponding block of front and back two static image frame is compared, to encode after the different blocks finding out front and back two static image frame, and the coded data of those different blocks is sent to central processing unit 12.This cataloged procedure may produce and damage or the effect of Lossless Compression.In fact, digital signal processing module 302 can include digital signal processor (DigitalSignalProcessor, DSP) to encode to produce coded data to the different blocks of front and back two static image frame, but not as limit.The coded system that digital signal processing module 302 adopts can comprise JPEG, wavelet conversion (WaveletTransform) or other any suitable coded systems.
In this embodiment, network interface controller 16 and central processing unit 12 form communication, after at least part of block of those static image frames above-mentioned is converted to a package by central processing unit 12, this package will to be sent in M platform via network W and to control computer A by network interface controller 16
1~ A
mcontrol computer in selected difference, at least Q+1 picture more than the number of Image processing channel (Q) can be provided to control computer A in M platform to make long-distance management device 10
1~ A
min Q+1 platform in control computer, and Q+1 picture corresponds to P platform controlled computer B respectively
1~ B
pin Q+1 platform controlled computer.It should be noted that, the different blocks of the front and back two static image frame found out after " at least part of block " that above-mentioned meeting is converted into the static image frame of this package refers to compare the corresponding block of front and back two static image frame, does not comprise the unconverted block of front and back two static image frame.
For example, suppose that Q equals 4, that is long-distance management device 10 adopts 4 Image processing channel CH
1~ CH
4, long-distance management device 10 can provide 5 acquisitions to control computer A from the picture of different controlled computer in M platform
1~ A
min 5 in control computer, and these 5 pictures correspond to P platform controlled computer B respectively
1~ B
pin 5 controlled computers.
In addition to the two modes mentioned above, under long-distance management system 1 also can operate on the 3rd pattern and four-mode.As shown in Figure 5A, in a third mode, long-distance management device 10 more can control computer A in M platform
1~ A
min arbitrary in control computer (control computer A such as
1) provide divided frame (PIP) and full screen display function.As shown in the figure, divided frame H and full screen display J is presented in middle control computer A respectively
1the two screen MR connected
1and MR
2on.It should be noted that, form multiple Image sources H of divided frame H
1~ H
4by multiple different Image processing channel (such as CH
1~ CH
4) with identical or different sample frequency, sampled and encoded in corresponding signal of video signal source respectively after formed, and above-mentioned identical or different sample frequency is all less than N.
For example, Image sources H
1by Image processing channel CH
1with the sample frequency of 10 image frames per second to controlled computer B
1the first signal of video signal SG
1formed after carrying out sampling and encode; Image sources H
2by Image processing channel CH
2with the sample frequency of 15 image frames per second to controlled computer B
2the second signal of video signal SG
2formed after carrying out sampling and encode; Image sources H
3by Image processing channel CH
3with the sample frequency of 20 image frames per second to controlled computer B
3the 3rd signal of video signal SG
3formed after carrying out sampling and encode; Image sources H
4by Image processing channel CH
4with the sample frequency of 25 image frames per second to controlled computer B
4the 4th signal of video signal SG
4formed after carrying out sampling and encode.The Image sources of full screen display J is by Image processing channel CH
5with the sample frequency of 30 image frames per second to controlled computer B
5the 5th signal of video signal SG
5formed after carrying out sampling and encode.
As shown in Figure 5 B, under four-mode, long-distance management device 10 more can control computer A in M platform
1~ A
min arbitrary in control computer (control computer A such as
2) function that provides double screen to show.Double screen display is presented in middle control computer A respectively
2the two screen MR connected
3and MR
4on.Wherein, screen MR
3shown picture corresponds to the first controlled computer B
1desktop images, screen MR
4shown picture corresponds to the second controlled computer B
2desktop images.Current vernier CUR is at screen MR
3on, represent that user is to the first controlled computer B
1operate, and the second controlled computer B
2be only monitor state.Therefore, long-distance management device 10 can to screen MR
3image sources higher sample frequency is provided; And to meeting to screen MR
4image sources lower sample frequency is provided.This higher sample frequency can be aforesaid frequency N (30 image frames per second), and this lower sample frequency can be aforesaid frequency N 1 or N2.As user by vernier CUR by screen MR
3move to screen MR
4time, represent that user is for the second controlled computer B
2carry out operating (non-be only monitoring), now long-distance management device 10 can to screen MR
4higher sample frequency is provided.That is in such a mode, now long-distance management device 10 can provide higher sample frequency to the Image sources (controlled computer) corresponding to the screen at vernier CUR place.For example, now screen MR
4shown image need adopt the sample frequency F of 30 image frames per second
1, and screen MR
3shown image only needs the sample frequency F adopting 10 image frames per second
2.That is the image shown by screen at non-vernier place provided by virtual image treatment channel.At the same time, this virtual image treatment channel is except to screen MR
3there is provided outside image, this virtual image treatment channel also may provide image to controlling computer in other one.
The present invention also discloses a kind of method for remote management, as shown in Fig. 6 A and Fig. 6 B, in step S10, M Remote program is performed respectively at controlling in M platform on computer, to carry out network communication with long-distance management device, make to control in M platform in computer in one or more to control computer produce and move relevant control signal with keyboard or vernier and can be transferred into long-distance management device, and then management long-distance management device and control P platform controlled computer.Wherein, long-distance management device has P the computer terminal port coupling P platform controlled computer respectively.
In step S12, one or more signal of video signal that P computer terminal port reception P controlled computer exports according to control signal.In step S14, by handover module, Q Image processing channel is coupled to P computer terminal port, wherein Q is less than or equal to P.In step S16, by Q Image processing channel, image processing is carried out to the one or more signal of video signal from P computer terminal port.In step S18, a control Q Image processing channel and handover module, make in the flrst mode, the sample frequency of N number of image frame per second the signal of video signal from same computer terminal port can be sampled from a certain Image processing channel selected by Q Image processing channel, under the second mode, can the sample frequency of a N1 per second image frame sample to obtain the first sampled data to this signal of video signal a certain from a certain Image processing channel selected by Q Image processing channel, and same Image processing channel also samples to obtain the second sampled data to another signal of video signal from different computers port with the sample frequency of a N2 per second image frame, wherein N1 adds that N2 is equal to or less than N.
In step S20, the first sampled data and the second sampled data are encoded, to obtain first coding data and the second coded data respectively.In step S22, first coding data and the second coded data be converted into a package at least partly after, package is sent in M platform in the difference controlled selected by computer via network and controls computer, to make long-distance management device that at least Q+1 picture can be provided to control computer in the Q+1 platform controlled in M platform in computer, and Q+1 picture corresponds to the different controlled computer of Q+1 platform in P platform controlled computer respectively.
In step S24, in a third mode, long-distance management device more can provide the function of divided frame and full screen display to a certain middle control computer.Wherein, divided frame and full screen display are presented on the first screen and the second screen that middle control computer connects respectively, the multiple Image sources forming divided frame formed after multiple different Image processing channel carries out sampling and encode with identical or different sample frequency respectively, and identical or different sample frequency is all less than N.
In step S26, under four-mode, the function that long-distance management device more can provide double screen to show to a certain middle control computer.Wherein, double screen display is presented on the first screen and the second screen that middle control computer connects respectively, when the vernier of central control computer moves to the second screen by the first screen, the sample frequency of the Image processing channel corresponding to the Image sources of the second screen will be adjusted to N, and the sample frequency of Image processing channel corresponding to the Image sources of the first screen will be adjusted to and is less than N.
Compared to prior art, according to long-distance management system of the present invention and method for remote management under the prerequisite not increasing network-type multi-computer switch hardware cost, alternately switched between two different computer terminal ports by handover module, to provide more Image processing channel by virtual mode.Therefore, even if network-type multi-computer switch only has the Image processing channel that 4 hardware are formed, long-distance management system and method for remote management also can provide independently Image sources to the middle control computer more than 5 (containing).
By the above detailed description of preferred embodiments, it is desirable to clearly to describe feature of the present invention and spirit, and not with above-mentioned disclosed preferred embodiment, category of the present invention is limited.On the contrary, its objective is wish to contain various change and tool equality be arranged in the present invention institute in the category of the scope of the claims applied for.
Claims (10)
1. a long-distance management system, in order to will control computer in M platform via a network-coupled to P platform controlled computer, this long-distance management system at least comprises:
One long-distance management device, has P computer terminal port, in order to couple this P platform controlled computer respectively; And
M Remote module, be executed in respectively and control on computer in this M platform, in order to carry out network communication with this long-distance management device, with make to control in this M platform in computer in one or more to control computer produce and move a relevant control signal with keyboard or vernier and can be transferred into this long-distance management device, and then manage this long-distance management device and control this P platform controlled computer;
Wherein, this P computer terminal port more receives one or more signal of video signal that this P controlled computer exports according to this control signal;
Wherein, this long-distance management device at least comprises:
Q Image processing channel, in order to carry out image processing to the one or more signal of video signal from this P computer terminal port, wherein Q is less than or equal to P;
One handover module, in order to be coupled to this P computer terminal port by this Q Image processing channel;
One central processing unit, forms communication with this Q Image processing channel and this handover module, and controls this Q Image processing channel and this handover module, and then makes
The sample frequency of N number of image frame per second a signal of video signal from same computer terminal port can be sampled from a certain Image processing channel selected by this Q Image processing channel under a first mode;
Can the sample frequency of a N1 per second image frame sample to obtain one first sampled data to this signal of video signal a certain from a certain Image processing channel selected by this Q Image processing channel under one second pattern, and encode to obtain a first coding data to this first sampled data, and this Image processing channel also samples to obtain one second sampled data to another signal of video signal from different computers port with the sample frequency of a N2 per second image frame, and encode to obtain one second coded data to this second sampled data, wherein N1 adds that N2 is equal to or less than N, and
One network interface controller, communication is formed with this central processing unit, this first coding data and this second coded data be converted into a package at least partly after, this package is sent in this M platform in the difference controlled selected by computer via this network and controls computer, to make this long-distance management device that at least Q+1 picture can be provided to control computer in the Q+1 platform controlled in this M platform in computer, and this Q+1 picture corresponds to the Q+1 platform controlled computer in this P platform controlled computer respectively.
2. long-distance management system as claimed in claim 1, it is characterized in that, this long-distance management device more can control to a certain the function that computer provides divided frame and full screen display in this under one the 3rd pattern, this divided frame and the display of this full screen are presented in this respectively to be controlled on the first screen and one second screen that computer connects, the multiple Image sources wherein forming this divided frame formed after multiple different Image processing channel carries out sampling and encode with identical or different sample frequency respectively, and this identical or different sample frequency is all less than N.
3. long-distance management system as claimed in claim 2, it is characterized in that, this long-distance management device more can to a certain function controlled computer in this and provide double screen to show under a four-mode, the display of this double screen is presented in this respectively to be controlled on the first screen and one second screen that computer connects, wherein when the vernier controlling computer in this moves to the second screen by the first screen, the sample frequency of the Image processing channel corresponding to the Image sources of this second screen will be adjusted to N number of image frame per second, and the sample frequency of Image processing channel corresponding to the Image sources of this first screen will be adjusted to and will per secondly be less than N number of image frame.
4. a long-distance management system, in order to control computer via network-coupled to one first controlled computer and one second controlled computer by controlling in one first in computer and one second, this long-distance management system at least comprises:
One long-distance management device, one end is coupled to this first controlled computer and this second controlled computer;
One in order to carry out the module of network communication with this long-distance management device, is executed in this in first and controls on computer, make this control in first computer produce and move the first relevant control signal with keyboard or vernier and can be transferred into this long-distance management device; And
One in order to carry out the module of communication with this long-distance management device via this network, be executed in this in second and control on computer, make this control in second computer produce and move the second relevant control signal with keyboard or vernier and can be transferred into this long-distance management device;
Wherein this long-distance management device at least comprises:
One first computer terminal port, corresponds to this first controlled computer and receives the first signal of video signal that this first controlled computer exports according to this first control signal;
One second computer terminal port, corresponds to this second controlled computer and receives the second signal of video signal that this second controlled computer exports according to this second control signal;
One Image processing channel, in order to carry out image processing to this first signal of video signal or this second signal of video signal;
One handover module, is coupled to this first computer terminal port and this second computer terminal port by this Image processing channel;
One central processing unit, forms communication with this Image processing channel and this handover module;
Wherein in the flrst mode, this first signal of video signal or this second signal of video signal can be converted to N number of static image frame per second by this Image processing channel;
Under the second mode, this handover module alternately switches between this first computer terminal port and this second computer terminal port, N1 per second static image frame can be converted to by this Image processing channel to make this first signal of video signal, this second signal of video signal can be converted to N2 per second static image frame by this Image processing channel, and N1 adds N2 is equal to or less than N; And
One network interface controller, forms communication with this central processing unit, in order at least part of block of those static image frames is converted to package,
In the first mode the package representing at least part of block of this N number of static image frame is sent to this via this network and controls computer in first or this controls computer in second; Or in this second mode the package representing at least part of block of this N1 per second static image frame being sent to this in first via this network controls computer, and the package representing at least part of block of this N2 per second static image frame is sent to this in second via this network controls computer.
5. long-distance management system as claimed in claim 4, it is characterized in that, N1 can equal or be not equal to N2.
6. long-distance management system as claimed in claim 4, it is characterized in that, this Image processing channel at least comprises:
One analog-to-digital converting module, in order in the first mode this first signal of video signal or this second signal of video signal are converted to continuous print N number of static image frame per second, and in this second mode this first signal of video signal is converted to N1 per second static image frame, and this second signal of video signal is converted to N2 per second static image frame; And
One digital signal processing module, after those static image frames are split into multiple block, the corresponding block of front and back two static image frame compares by this digital signal processing module, to encode after the different blocks finding out front and back two static image frame, and the encoded radio of those different blocks is sent to this central processing unit.
7. long-distance management system as claimed in claim 6, is characterized in that, this digital signal processing module is encoded to those static image frames according to jpeg format.
8. a method for remote management, in order to will control computer in M platform via a network-coupled to P platform controlled computer, this method for remote management comprises the following step:
There is provided a long-distance management device, this long-distance management device has P computer terminal port, a Q Image processing channel and a handover module, and wherein Q is less than or equal to P, couples this P platform controlled computer respectively with the P of this long-distance management device computer terminal port;
M Remote program is performed respectively at controlling in this M platform on computer, to carry out network communication with this long-distance management device, make to control in this M platform in computer in one or more to control computer produce and move relevant control signal with keyboard or vernier and can be transferred into this long-distance management device, and then manage this long-distance management device and control this P platform controlled computer, the one or more signal of video signal making this P computer terminal port receive this P controlled computer to export according to this control signal;
With this Q Image processing channel, image processing is carried out to the one or more signal of video signal from this P computer terminal port;
With this handover module, this Q Image processing channel is coupled to this P computer terminal port;
Control this Q Image processing channel and this handover module, and then make
The sample frequency of N number of image frame per second a signal of video signal from same computer terminal port can be sampled from a certain Image processing channel selected by this Q Image processing channel under a first mode;
Can the sample frequency of a N1 per second image frame sample to obtain one first sampled data to this signal of video signal a certain from a certain Image processing channel selected by this Q Image processing channel under one second pattern, and this Image processing channel also samples to obtain one second sampled data to another signal of video signal from different computers port with the sample frequency of a N2 per second image frame, wherein N1 adds that N2 is equal to or less than N;
This first sampled data and this second sampled data are encoded, to obtain a first coding data and one second coded data respectively; And
This first coding data and this second coded data be converted into a package at least partly after, this package is sent in this M platform in the difference controlled selected by computer via this network and controls computer, to make this long-distance management device that at least Q+1 picture can be provided to control computer in the Q+1 platform controlled in this M platform in computer, and this Q+1 picture corresponds to the Q+1 platform controlled computer in this P platform controlled computer respectively.
9. method for remote management as claimed in claim 8, is characterized in that, more comprise the following step:
Under one the 3rd pattern, this long-distance management device more can control to a certain the function that computer provides divided frame and full screen display in this;
Wherein, this divided frame and the display of this full screen are presented in this respectively to be controlled on one first screen and one second screen that computer connects, the multiple Image sources forming this divided frame formed after multiple different Image processing channel carries out sampling and encode with identical or different sample frequency respectively, and this identical or different sample frequency is all less than N.
10. method for remote management as claimed in claim 8, is characterized in that, more comprise the following step:
Under a four-mode, this long-distance management device more can to a certain function controlled computer in this and provide double screen to show;
Wherein, the display of this double screen is presented in this respectively to be controlled on one first screen and one second screen that computer connects, when the vernier controlling computer in this moves to the second screen by the first screen, the sample frequency of the Image processing channel corresponding to the Image sources of this second screen will be adjusted to N, and the sample frequency of Image processing channel corresponding to the Image sources of this first screen will be adjusted to and is less than N.
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| TWI649655B (en) * | 2014-06-10 | 2019-02-01 | 宏正自動科技股份有限公司 | Remote management method |
| TWI497400B (en) * | 2014-06-10 | 2015-08-21 | Aten Int Co Ltd | Method of auto-recognizing for cursor in monitors |
| TWI514237B (en) * | 2014-11-25 | 2015-12-21 | Aten Int Co Ltd | Method for recognizing of multiple monitors |
| TWI622905B (en) * | 2015-12-15 | 2018-05-01 | 宏正自動科技股份有限公司 | Over-ip kvm switch |
| TWI726266B (en) * | 2018-12-14 | 2021-05-01 | 聰泰科技開發股份有限公司 | Remote control method |
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| US7016064B2 (en) * | 1999-12-27 | 2006-03-21 | Fuji Photo Film Co., Ltd. | Method and system for remote management of processor, and method and system for remote diagnosis of image output apparatus |
| US7774523B2 (en) * | 2004-03-31 | 2010-08-10 | Aten International Co., Ltd. | Interface switch system for simultaneously connecting multiple I/O devices |
| JP2007200105A (en) * | 2006-01-27 | 2007-08-09 | Ricoh Co Ltd | Controller and remote control system |
| TWI332166B (en) * | 2007-01-02 | 2010-10-21 | Prolific Technology Inc | Multi-media kvm switch |
| US7721028B2 (en) * | 2008-02-04 | 2010-05-18 | Aten International Co., Ltd. | Keyboard video mouse (KVM) switch between plurality of internal USB hubs each associated with plurality of audio codecs connected to the downstream port of associated USB hub |
| TWM343983U (en) * | 2008-05-12 | 2008-11-01 | C & C Technic Taiwan Co Ltd | Automatic detection and adjustment device of KVM extender |
| CN105208087A (en) * | 2009-07-23 | 2015-12-30 | 宏正自动科技股份有限公司 | Remote management system and remote management method |
| CN102122207B (en) * | 2010-01-11 | 2013-04-03 | 宏正自动科技股份有限公司 | Remote management system |
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