CN1303519C - Computer switching device and signal switching method - Google Patents
Computer switching device and signal switching method Download PDFInfo
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- CN1303519C CN1303519C CNB2004100427713A CN200410042771A CN1303519C CN 1303519 C CN1303519 C CN 1303519C CN B2004100427713 A CNB2004100427713 A CN B2004100427713A CN 200410042771 A CN200410042771 A CN 200410042771A CN 1303519 C CN1303519 C CN 1303519C
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Abstract
The present invention provides a computer switcher and a signal switching method, with which a plurality of signal output devices share a plurality of signal input devices through a plurality of computer switchers. When the path destinations of a local electronic signal and a remote electronic signal are the same local signal input device, either the local electronic signal or the remote electronic signal is permitted to be transmitted to the local signal input device. When the path destinations of the local electronic signal and the remote electronic signal are the other at least one remote signal input device, either the local electronic signal or the remote electronic signal is permitted to be transmitted to the remote signal input device. The present invention can provide high-quality transmission for analog signals particularly video signals. Under the architecture, the video signals can also be simultaneously output to a plurality of signal input devices. Via hardware connection combined with an identification code automatic setting circuit, the present invention avoids a complicated process for allocating identification codes with a traditional contact method.
Description
Technical field
The invention relates to a kind of computer switch, but particularly about a kind of multiply-computer series connection and can high-quality transmission the computer switch and the signal switching method thereof of simulating signal.
Background technology
Because the fast development of infotech makes that the application of computing machine and peripheral product thereof is quite universal.The computing machine user utilizes input equipments such as mouse, keyboard that computing machine is operated usually, computing machine is presented at the state of computing machine on the monitor by output devices such as monitor, loudspeaker or utilizes the sound indication, thereby makes the computing machine user can grasp the real-time status of computing machine at any time.Sometimes in order to meet the different needs, the user may use not only a computing machine to handle various thing.Usually, every computing machine all should be equipped with one group of operating means, for example keyboard, mouse, monitor and loudspeaker etc., but this configuration mode is wasted fund and space very much.
On the other hand, have at most thousands of several servomechanisms at least on the network of large enterprise or medium and small sized enterprises inside usually, every servomechanism all will use operating means such as monitor, keyboard and mouse.In fact, seldom use these operating means when using these servomechanisms, the most of the time servomechanism does not need the supvr to control.In this case, it is unnecessary that every servomechanism all uses one group of operating means, and can cause the waste in fund and space.
Computer switch (Keyboard-Video-Mouse Switch; KVM Switch) appearance has solved the problems referred to above.It uses at least one group of operating means to manage many computer installations, has not only solved cost, equipment and space problem, has also overcome the consistency problem of distinct interface simultaneously.
Yet single computer switch is subjected to the restriction of hardware design and cost, and the group number of the operating means that can connect and the number of computing machine are limited.On the other hand, known computer switch to each other and be not easy to be connected in series, and when many group operating means use many computing machines simultaneously, simulating signal between the two, vision signal for example, and be not easy to realize the connection and the switching of interdepartmental system platform.
Above-mentioned two shortcomings are brought many inconvenience to the user, but known technology can't provide the high-quality transmissions of many group operating means and many intercomputer simulating signals, also can't realize being connected in parallel and switching of simulating signal.For the internal network of large enterprise or medium and small sized enterprises,, also can reduce the communication efficiency of whole network if computer switch huge operating means and the computing machine of usage quantity simultaneously not only can improve and make up and the cost of maintenance system.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of computer switch, connect more computing machine and input-output apparatus to expand, and the high-quality transmission of simulating signal is provided for many computer switch of serial connection.
Another object of the present invention provides a kind of electronic signal changing method, at a high speed and a large amount of interchange mode analog signals, and realizes being connected in parallel and switching between different simulating signals.
For reaching above-mentioned purpose of the present invention, a kind of computer switch is proposed, pass through the shared a plurality of signal input apparatus of a plurality of computer switch for a plurality of signal output apparatus.This computer switch comprises a serial connection switching array and a local switching array at least.The serial connection switching array has a plurality of serial connections switching input ports, a plurality of first serial connection switches output port and a plurality of second serial connection is switched output port.This serial connection is switched this second serial connection switching output port that input port connects another first computer switch of the same race, this first serial connection is switched output port and is connected signal input apparatus, and this serial connection that this second serial connection switching output port connects another second computer switch of the same race is switched input port.
Local switching array has a plurality of local input port, a plurality of first local output port and a plurality of second local output ports that switch of switching of switching.The local input port connection signal output apparatus that switches, this first local output port that switches connects signal input apparatus, and this serial connection that this second local switching output port connects another second computer switch of the same race is switched input port.
When this first serial connection switching output port is identical with the destination of this first local switching output port, this first serial connection is switched output port and this not conducting simultaneously of first local switching output port, when this second serial connection switching output port was identical with the destination of this second local switching output port, this second serial connection switches output port and not conducting simultaneously of output port is switched in this second this locality.
According to computer switch of the present invention, local electronic signal and electronic remote signal are simulating signal.Serial connection switching array and local switching array are respectively a crossover node chip.This first serial connection switches output port and this first local output port that switches is connected in parallel one to one, and this second serial connection is switched output port and is connected in parallel one to one with this second local output port that switches.
According to computer switch of the present invention, the quantity that this serial connection is switched input port is identical with this second serial connection switching number of output ports of another first computer switch of the same race, and connects so that man-to-man mode is corresponding mutually; It is identical with the quantity of this serial connection switching input port of another second computer switch of the same race that this second serial connection is switched number of output ports, and connect so that man-to-man mode is corresponding mutually.
According to computer switch of the present invention, this computer switch comprises an identification code auto-set circuit, setting belongs to the identification code of this computer switch, and the identification code of other computer switch of the same race that is connected with this computer switch serial connection switching input port and the second serial connection switching output port lacks one and many one than the identification code of this computer switch respectively.
For reaching another object of the present invention, the present invention proposes a kind of electronic signal changing method.At first, receive a local electronic signal and an electronic remote signal.When the destination, path of local electronic signal and electronic remote signal was same local signal input media, one of them was sent to this local signal input media only to allow local electronic signal and electronic remote signal.When the destination, path of local electronic signal and electronic remote signal was other at least one remote signal input media, one of them was sent to this remote signal input media only to allow local electronic signal and electronic remote signal.
According to electronic signal changing method of the present invention, this this locality electronic signal and this electronic remote signal are simulating signal, and path that should this locality electronic signal is controlled by a local switching array, and the path of this electronic remote signal is controlled by a serial connection switching array.
According to electronic signal changing method of the present invention, this this locality switching array and this serial connection switching array are respectively a crossover node chip.
According to electronic signal changing method of the present invention, this this locality electronic signal and this electronic remote signal are connected in parallel to same this local signal input media.
According to electronic signal changing method of the present invention, this this locality electronic signal and this electronic remote signal are connected in parallel to other at least one this remote signal input media.
The present invention can provide the high-quality transmission of simulating signal, particularly vision signal.And under this framework, vision signal can also export a plurality of signal input apparatus simultaneously to.By the hardware connection and in conjunction with the identification code auto-set circuit, the present invention has avoided traditional use communication modes to distribute the complicated processes of identification code.
Description of drawings
Fig. 1 is the synoptic diagram of a preferred embodiment of the present invention.
Fig. 2 is the synoptic diagram of the identification code auto-set circuit of another preferred embodiment of the present invention.
Embodiment
Fig. 1 is the synoptic diagram of a preferred embodiment of the present invention.A plurality of signal output apparatus 132, for example computing machine is connected in series with shared a plurality of signal input apparatus 134, for example display mutually by a plurality of computer switch 100a, 100b and 100c.In order to know expression and this preferred embodiment to be described, in Fig. 1 only with a computer switch 100a, signal output apparatus 132 and a signal input apparatus 134 as representing.
Computer switch 100a comprises a serial connection switching array 110 and a local switching array 120 at least.Serial connection switching array 110 has a plurality of serial connections switching input ports 112, a plurality of first serial connection switches output port 114 and a plurality of second serial connection is switched output port 116.Serial connection is switched the second serial connection switching output port that input port 112 connects another computer switch 100b, the first serial connection switching output port 114 connects signal input apparatus 134, the second serial connections and switches the serial connection switching input port that output ports 116 connect another computer switch 100c.
Local switching array 120 has a plurality of local input port 122, a plurality of first local output port 124 and a plurality of second local output ports 126 that switch of switching of switching.Local input port 122 connection signal output apparatus 132, the first local switching output ports 124 that switch connect the serial connections switching input ports that signal input apparatus 134, the second local switching output ports 126 connect another computer switch.
In this preferred embodiment, signal output apparatus 132 is 32 computing machines, and signal input apparatus 134 is four displays, and the electronic signal of Chuan Diing is the vision signal of simulation between the two.The employed serial connection switching array 110 of this preferred embodiment is the crossover node chips with four input ports, eight output ports, wherein four input ports connections have the bus 142 of four passages, and this bus 142 is switched output ports in order to four serial connections that are connected in series another computer switch 100b; Four output ports connect four displays, and other four output ports connect another bus with four passages 146, and this bus 146 is switched input port in order to four serial connections that are connected in series another computer switch 100c.
The local switching array 120 of this preferred embodiment is the crossover node chip (Crosspoint Chip) with 32 input ports, eight output ports, wherein 32 input ports connect 32 computing machines, four output ports connect four displays, other four output ports connect above-mentioned bus 146 with four passages, and this bus 146 is switched input port in order to four serial connections that are connected in series another computer switch 100c.
The crossover node chip is the switching array of a kind of many ports input, the output of many ports, because its inside has the equilibrium feedback circuit, state in the time of can providing internal compensation to amplify the feasible signal of being exported with input is identical, therefore is specially adapted to switch the vision signal of same kind.
The quantity of serial connection switching input port 112 is connected in series the switching number of output ports and is four with second of computer switch 100b, and connects so that man-to-man mode is corresponding mutually.The quantity that second serial connection is switched output port 116 is four with the quantity of switching input port that is connected in series of this computer switch 100c, and connects so that man-to-man mode is corresponding mutually.Simultaneously, first serial connection switches output port 114 and the first local output port 124 that switches is connected in parallel one to one, and second serial connection switches output port 116 and the second local output port 126 that switches is connected in parallel one to one.
When first serial connection when to switch output port 114 and the first local destination of switching output port 124 are same signal input apparatus 134, first serial connection is switched the output port 114 and the first not conducting simultaneously of this locality switching output port 124.That is to say that when first serial connection was switched output port 114 conductings, the first local switching output port 124 not conductings in parallel with it only allowed first serial connection to switch output port 114 and output signal to signal input apparatus 134 this moment.Otherwise, when output port 124 conductings are switched in first this locality, be connected in series the 114 not conductings of switching output port with first of its parallel connection, only allow this moment the first local switching output port 124 to output signal to signal input apparatus 134.
Moreover when the destination of the second serial connection switching output port 116 and the second local switching output port 126 was all computer switch 100c, second serial connection switches output port 116 and not conducting simultaneously of output port 126 is switched in second this locality.That is to say that when second serial connection was switched output port 116 conductings, the second local switching output port 126 not conductings in parallel with it only allowed second serial connection to switch output port 116 and output signal to computer switch 100c this moment.Otherwise, when output port 126 conductings are switched in second this locality, be connected in series the 116 not conductings of switching output port with second of its parallel connection, only allow this moment the second local switching output port 126 to output signal to computer switch 100c.
According to foregoing as can be known, this computer switch 100a can receive a local electronic signal and an electronic remote signal simultaneously, should this locality electronic signal be simulating signal with this electronic remote signal wherein.When the destination, path of this this locality electronic signal and this electronic remote signal was same signal input apparatus 134, one of them was sent to this signal input apparatus 134 only to allow this this locality electronic signal and this electronic remote signal.When the destination, path of this this locality electronic signal and this electronic remote signal is when being positioned at the remote signal input media of other computer switch 100c, one of them is sent to this remote signal input media only to allow this this locality electronic signal and this electronic remote signal.
In this preferred embodiment, signal input apparatus 134 is displays, and signal output apparatus 132 is computing machines.For the present invention, signal input apparatus and signal output apparatus can also be other devices.For example, signal input apparatus 134 can also be computing machine or other signal input apparatus, and 132 of signal output apparatus can be video camera or other signal output apparatus.
According to another preferred embodiment of the present invention, computer switch includes identification code (ID) auto-set circuit.It is principal computer switch or from computer switch that identification code is mainly used to distinguish computer switch, so that carry out the signal transmission procedure of back.In addition, when many computer switch serial connections, each computer switch also needs the identification code of oneself, so that carry out network communication between each computer switch.
Fig. 2 is the synoptic diagram of the identification code auto-set circuit of another preferred embodiment of the present invention.This identification code auto-set circuit 210 is set the identification code M_ID that belongs to this computer switch 200a, and according to the levels relation of many computer switch when being connected in series, automatically and simply set the identification code of each computer switch, to avoid using communication modes to distribute the loaded down with trivial details problem of identification code.
In this preferred embodiment, another computer switch 200b switches input port via bus 242 with the serial connection of computer switch 200a and is connected.Computer switch 200b is positioned at the upper strata of computer switch 200a, and the identification code M_ID that its identification code IN_ID can set for than computer switch 200a lacks one.On the other hand, another computer switch 200c is connected with the second serial connection switching output port of computer switch 200a via bus 246.Computer switch 200c is positioned at the lower floor of computer switch 200a, and its identification code OUT_ID can set for than the identification code M_ID of computer switch 200a Duos one.
Above-mentioned preferred embodiment realizes that by the combination of two switching arrays the simulating signal between many computer switch connects.The serial connection switching array is identical with destination, path in the local switching array or use the output port of same channel to be connected in series mutually, and control the switch relation of these output ports, reach the function that output is selected.The destination, path is identical or use the output port of same channel can not open simultaneously, thereby can avoid two simulating signals to export same signal input apparatus simultaneously to or take same channel.
This preferred embodiment can provide the high-quality transmission of simulating signal, particularly vision signal.And under this framework, vision signal can also export a plurality of signal input apparatus simultaneously to.For example, different displays can switch to the operation screen of same computing machine simultaneously.Moreover by the hardware connection and in conjunction with the identification code auto-set circuit, this preferred embodiment has avoided known use communication modes to distribute the complicated processes of identification code.
Though the present invention by the preferred embodiment explanation as above, this preferred embodiment is not in order to limit the present invention.Those skilled in the art without departing from the spirit and scope of the present invention, should have the ability this preferred embodiment is made various changes and replenished, so protection scope of the present invention is as the criterion with the scope of claims.
Being simply described as follows of symbol in the accompanying drawing:
100a, 100b, 100c: computer switch
110: serial connection switching array 112: serial connection is switched input port
114: the first serial connections are switched 116: the second serial connections of output port and are switched output port
118: identification code auto-set circuit 120: local switching array
122: local 124: the first local output ports that switch of input port that switch
126: the second local output ports 132 that switch: signal output apparatus
134: signal input apparatus 142,146: bus
200a, 200b, 200c: computer switch
210: identification code auto-set circuit 242,246: bus
Claims (10)
1. computer switch, a plurality of signal output apparatus is characterized in that by the shared a plurality of signal input apparatus of a plurality of these computer switch this computer switch comprises:
A serial connection switching array, have a plurality of serial connections and switch input port, a plurality of first serial connection switching output port and a plurality of second serial connection switching output port, wherein this serial connection is switched this second serial connection switching output port that input port connects another first computer switch of the same race, this first serial connection is switched output port and is connected signal input apparatus, and this serial connection that this second serial connection switching output port connects another second computer switch of the same race is switched input port; And
A local switching array, have a plurality of local input port, a plurality of first local output port and a plurality of second local output ports that switch of switching of switching, wherein should switch input port connection signal output apparatus in this locality, this first local output port that switches connects signal input apparatus, and this serial connection that this second local switching output port connects another second computer switch of the same race is switched input port;
When this first serial connection switching output port is identical with the destination of this first local switching output port, this first serial connection is switched output port and this not conducting simultaneously of first local switching output port, and when this second serial connection switching output port was identical with the destination of this second local switching output port, this second serial connection switches output port and not conducting simultaneously of output port is switched in this second this locality.
2. computer switch according to claim 1 is characterized in that: this serial connection switching array is one first a crossover node chip, and should this locality switching array be one second crossover node chip.
3. computer switch according to claim 1, it is characterized in that: the quantity that this serial connection is switched input port is identical with this second serial connection switching number of output ports of another first computer switch of the same race, and connects so that man-to-man mode is corresponding mutually; It is identical with the quantity of this serial connection switching input port of another second computer switch of the same race that this second serial connection is switched number of output ports, and connect so that man-to-man mode is corresponding mutually.
4. computer switch according to claim 1, it is characterized in that: this first serial connection switches output port and this first local output port that switches is connected in parallel one to one, and this second serial connection is switched output port and this second local output port that switches is connected in parallel one to one.
5. computer switch according to claim 1, it is characterized in that: this computer switch also comprises an identification code auto-set circuit, setting belongs to the identification code of this computer switch, and the identification code of switching other computer switch of the same race that input port and this second serial connection switching output port be connected with this serial connection of this computer switch is respectively than the identification code numerical value little one of this computer switch and big by one.
6. electronic signal changing method, a plurality of local and remote signal output apparatus is characterized in that by the shared a plurality of local and remote signal input apparatus of this electronic signal changing method this electronic signal changing method comprises:
Receive a local electronic signal and an electronic remote signal:
When the destination, path of this this locality electronic signal and this electronic remote signal was same this local signal input media, one of them was sent to this local signal input media only to allow this this locality electronic signal and this electronic remote signal; And
When the destination, path of this this locality electronic signal and this electronic remote signal was same remote signal input media, one of them was sent to this remote signal input media only to allow this this locality electronic signal and this electronic remote signal.
7. electronic signal changing method according to claim 6, it is characterized in that: this this locality electronic signal and this electronic remote signal are simulating signal, and path that should this locality electronic signal is controlled by a local switching array, and the path of this electronic remote signal is controlled by a serial connection switching array.
8. electronic signal changing method according to claim 7 is characterized in that: this serial connection switching array is one first a crossover node chip, and should this locality switching array be one second crossover node chip.
9. electronic signal changing method according to claim 6 is characterized in that: this electronic signal changing method also comprises the path that this this locality electronic signal and this electronic remote signal is connected in parallel to same this local signal input media.
10. electronic signal changing method according to claim 6 is characterized in that: this electronic signal changing method also comprises the path that this this locality electronic signal and this electronic remote signal is connected in parallel to the serial connection switching input port of same other computer switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100427713A CN1303519C (en) | 2004-05-26 | 2004-05-26 | Computer switching device and signal switching method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100427713A CN1303519C (en) | 2004-05-26 | 2004-05-26 | Computer switching device and signal switching method |
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| Publication Number | Publication Date |
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| CN1704895A CN1704895A (en) | 2005-12-07 |
| CN1303519C true CN1303519C (en) | 2007-03-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2004100427713A Expired - Lifetime CN1303519C (en) | 2004-05-26 | 2004-05-26 | Computer switching device and signal switching method |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105897543A (en) * | 2016-05-31 | 2016-08-24 | 陈专 | Network parallel and information overlapping display system |
| CN106161819A (en) * | 2016-07-05 | 2016-11-23 | 国网天津市电力公司 | A kind of scheduling manoeuvre ensures platform telephone switching device |
| TWI791986B (en) * | 2020-05-07 | 2023-02-11 | 東碩資訊股份有限公司 | Docking station |
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| CN2501088Y (en) * | 2001-08-28 | 2002-07-17 | 黄月云 | Computer keyboard, monitor and mouse connecting converter |
| US20030131127A1 (en) * | 2002-01-05 | 2003-07-10 | King Randy J. | KVM video & OSD switch |
| CN1434383A (en) * | 2002-01-24 | 2003-08-06 | 威达电股份有限公司 | Long distance all function control and management device |
| US6609034B1 (en) * | 2000-03-29 | 2003-08-19 | Epicenter, Incorporated | System and method for remotely controlling and monitoring a plurality of computer systems |
| US6615272B1 (en) * | 1999-10-20 | 2003-09-02 | Lantronix, Inc. | Switch node for connecting a keyboard video mouse to selected servers in a interconnected switch node network |
| CN1462934A (en) * | 2002-05-31 | 2003-12-24 | 宏正自动科技股份有限公司 | Intelligent type switcher for computers |
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2004
- 2004-05-26 CN CNB2004100427713A patent/CN1303519C/en not_active Expired - Lifetime
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6615272B1 (en) * | 1999-10-20 | 2003-09-02 | Lantronix, Inc. | Switch node for connecting a keyboard video mouse to selected servers in a interconnected switch node network |
| US6609034B1 (en) * | 2000-03-29 | 2003-08-19 | Epicenter, Incorporated | System and method for remotely controlling and monitoring a plurality of computer systems |
| CN2501088Y (en) * | 2001-08-28 | 2002-07-17 | 黄月云 | Computer keyboard, monitor and mouse connecting converter |
| US20030131127A1 (en) * | 2002-01-05 | 2003-07-10 | King Randy J. | KVM video & OSD switch |
| CN1434383A (en) * | 2002-01-24 | 2003-08-06 | 威达电股份有限公司 | Long distance all function control and management device |
| CN1462934A (en) * | 2002-05-31 | 2003-12-24 | 宏正自动科技股份有限公司 | Intelligent type switcher for computers |
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| CN1704895A (en) | 2005-12-07 |
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