CN109283910B - KVM remote control system - Google Patents
KVM remote control system Download PDFInfo
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- CN109283910B CN109283910B CN201811418612.7A CN201811418612A CN109283910B CN 109283910 B CN109283910 B CN 109283910B CN 201811418612 A CN201811418612 A CN 201811418612A CN 109283910 B CN109283910 B CN 109283910B
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- 241000699666 Mus <mouse, genus> Species 0.000 description 55
- 238000010586 diagram Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 241000699670 Mus sp. Species 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
- G05B19/4185—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM] characterised by the network communication
- G05B19/41855—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM] characterised by the network communication by local area network [LAN], network structure
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
- G05B19/4184—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM] characterised by fault tolerance, reliability of production system
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- Manufacturing & Machinery (AREA)
- Quality & Reliability (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
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Abstract
The invention discloses a KVM remote control system, which relates to the technical field of remote control and comprises a keyboard and mouse switcher, a KVM host, a local host, local keyboard and mouse equipment, a local display, a DVI frequency divider, a switch, a remote server, a remote display and remote keyboard and mouse equipment; the local keyboard and mouse equipment is connected with the keyboard and mouse switcher, and the keyboard and mouse switcher is connected with the local host; the local host is connected with the input end of the DVI frequency divider, and two output ends of the DVI frequency divider are respectively connected with the local display and the KVM host; the keyboard and mouse switcher is connected with the KVM host, and the KVM host is connected to the remote server through a plurality of switch networks; the remote keyboard and mouse device and the remote display are both connected with a remote server; when an engineer deals with a problem at a workshop station, the engineer can press the control switch to stop the KVM host from sending a control signal to the keyboard and mouse switcher, so that the remote keyboard and mouse device cannot control the controlled device, but the remote display can still receive a video signal from the local host.
Description
Technical Field
The invention relates to the technical field of remote control, in particular to a KVM remote control system.
Background
The kvm (keyboard Video mouse) technology is a method that output signals of a plurality of servers, PCs, keyboards, mice, displays of other network devices, and the like are transmitted to a remote end in a frequency division manner, and a set of the keyboards, mice, and displays of the remote end are used for realizing remote monitoring. The technology is widely applied to the industry, because the stations of a factory with high automation degree are dispersed and far away, and one person can hardly take care of the work of a plurality of stations at the same time. The KVM has the advantages that the distance between the stations is well shortened, the labor cost is greatly saved, the alarm processing time is greatly shortened, and the productivity is indirectly improved.
The existing KVM remote control system adopts a remote keyboard and mouse operating system and a display screen to directly connect with a KVM host, the KVM host is directly connected with a local host, and the keyboard and mouse operating system at the remote end remotely controls the local host. This mechanism, which can Monitor and operate remotely and locally at the same time, also exposes an important safety hazard: when the engineer is dealing with the problem in the workshop station, the personnel in the monitoring room may not know, and the personnel in the monitoring room still can carry out remote control to the workshop station to cause the maloperation, reduce work efficiency, produce the potential safety hazard to the engineer on the workshop station even.
Disclosure of Invention
The present invention is directed to a KVM remote control system to solve the above problems.
In order to achieve the purpose, the invention provides the following technical scheme: a KVM remote control system comprises a remote end and a local end;
the local end comprises a keyboard and mouse switcher, a KVM host, a local host, local keyboard and mouse equipment, a local display, a DVI frequency divider and a local switch; the local keyboard and mouse equipment is connected with the keyboard and mouse switcher, and the keyboard and mouse switcher is connected with the local host; the local host is connected with the input end of the DVI frequency divider, and two output ends of the DVI frequency divider are respectively connected with the local display and the KVM host; the keyboard and mouse switcher is connected with the KVM host, and the KVM host is connected with a local switch; the local switch is connected with the remote end through a network; the remote end comprises a remote display and remote keyboard and mouse equipment;
the local host generates a video signal and sends the video signal to the DVI frequency divider, and the DVI frequency divider divides the video signal into a local video signal and a remote video signal; the local video signal is sent to the local display; the remote video signal is sent to the KVM host, and the KVM host sends the remote video signal to the remote display of the remote end through the local switch and the network;
the remote keyboard and mouse equipment of the remote end generates a remote control signal and sends the remote control signal to the KVM host through a network and the local switch, and the KVM host sends the remote control signal to the keyboard and mouse switcher; the local keyboard and mouse device generates a local control signal and sends the local control signal to the keyboard and mouse switcher; the keyboard and mouse switcher combines the remote control signal and the local control signal into a control signal and sends the control signal to a local host.
Further, the remote control system has two working states of locking and unlocking;
when the remote control system is in a locked working state, the KVM host only receives the remote video signal from the DVI frequency divider and stops sending the remote control signal to the keyboard and mouse switcher.
When the remote control system is in an unlocking working state, the KVM host not only receives the remote video signal from the DVI frequency divider, but also sends the remote control signal to the keyboard and mouse switcher.
Furthermore, a control switch is arranged on the keyboard-mouse switcher and is connected with the KVM host; and changing the working state of the remote control system through the control switch.
Further, the control switch comprises a locking switch and an unlocking switch;
when the remote control system is in an unlocking working state, if the locking switch is started, the working state of the remote control system is changed into a locking working state; if the unlocking switch is started, the working state of the remote control system is unchanged;
when the remote control system is in a locking working state, if the locking switch is started, the working state of the remote control system is unchanged, and if the locking switch is started, the working state of the remote control system is changed into an unlocking working state.
Furthermore, be provided with status indicator lamp on the keyboard and mouse switcher, status indicator lamp connects the KVM host computer, the KVM host computer is used for showing remote control system's operating condition.
Furthermore, the local terminal also comprises an emergency stop module, and the emergency stop module comprises a control system and a two-way relay;
the local host directly controls the controlled equipment, and an emergency button is arranged on the controlled equipment;
the output end of the two-way relay is connected with the controlled equipment, two input ends of the two-way relay are respectively connected with the emergency button and the control system, and the control system is connected with the keyboard and mouse switcher;
the remote end further comprises a remote emergency button, and the remote emergency button is connected with the remote server.
Further, the remote emergency button sends a signal to the control system through the remote server, the remote switch, the local switch, the KVM host and the keyboard and mouse switcher, so that the control system sends a control signal to the two paths of relays; and after receiving the control signals of the emergency button and the control system, the two-way relay can open the output end of the two-way relay, and the controlled equipment stops working.
Compared with the prior art, the invention has the beneficial effects that:
1. when an engineer deals with a problem at a workshop station, the engineer can press the control switch to stop the KVM host from sending a control signal to the keyboard and mouse switcher, so that the remote keyboard and mouse device cannot control the controlled device, but the remote display can still receive a video signal from the local host.
2. The operating state of the KVM host is controlled by the buttons arranged on the keyboard and mouse switcher, the safe remote control of the controlled equipment can be realized without modifying the software part of the local host and inserting hardware equipment such as the keyboard and mouse switcher, the installation is convenient, and meanwhile, the KVM remote control system can be suitable for the local hosts and the controlled equipment of different systems.
3. The KVM host is controlled by the two buttons respectively, so that the probability of misoperation caused by pressing the same button for multiple times is reduced.
Drawings
FIG. 1 is a schematic diagram of a KVM remote control system according to the present invention;
FIG. 2 is a schematic diagram of a keyboard and mouse switch of the KVM remote control system according to the present invention;
FIG. 3 is a schematic diagram of an emergency stop module of the KVM remote control system of the present invention.
In the reference symbols: a local terminal 1; a local host 11; a keyboard and mouse switcher 12; a lock switch 121; an unlock switch 122; a lock status indicator lamp 123; an unlock status indicator light 124; a main chip 125; a DVI distributor 13; a local keyboard and mouse device 14; a local display 15; an emergency stop module 16; a control system 161; a two-way relay 162; a KVM host 17; a local switch 18; a remote terminal 2; a remote server 21; a remote keyboard and mouse device 22; a remote display 23; a remote emergency button 24; a remote switch 25; a controlled device 3; an emergency button 31.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The present invention provides a KVM remote control system, as shown in fig. 1, including a local end 1 and a remote end 2.
The local end 1 includes a local host 11, a keyboard and mouse switcher 12, a DVI distributor 13, a local keyboard and mouse device 14, a local display 15, an emergency stop module 16, a KVM host 17, and a local switch 18. The local host 11 is used for controlling the controlled device 3. The native host 11 is connected to an input of the DVI distributor 13, and an output of the DVI distributor 13 is connected to the native display 15 and the KVM host 17, respectively. The local host 11 is also connected to the keyboard and mouse switch 12, and the keyboard and mouse switch 12 is also connected to the local keyboard and mouse device 14 and the KVM host 17, respectively. The KVM host connection 17 connects to the local switch 18.
The remote end 2 includes a remote server 21, a remote keyboard and mouse device 22, a remote display 23, a remote emergency button 24 and a remote switch 25. The remote switch 25 is connected to the local switch 18 through a network, the remote switch 25 is connected to the remote server 21, and the remote server 21 is connected to the remote keyboard and mouse device 22 and the remote display 23.
The localhost 11 acquires the operating state of the controlled device 3, and the localhost 11 converts the operating state of the controlled device 3 into a video signal and sends the video signal to the DVI distributor 13. The DVI distributor 13 converts the video signal into a local video signal and a remote video signal, and sends the local video signal to the local display 15 and the remote video signal to the KVM host 17. The KVM host 17 sends the remote video signal to the remote server 21 through the local switch 18, the network, and the remote switch 25, and the remote server 21 sends the remote video signal to the remote display 23, so that the operating status of the controlled device 3 is displayed on the local display 15 and the remote display 23 at the same time.
The remote keyboard and mouse device 22 sends out a remote control signal. The remote control signal is sent to the remote server 21, the remote server 21 sends the control signal to the KVM switch 17 through the remote switch 25, the network, the local switch 18, and the KVM switch 17 sends the remote control signal to the keyboard and mouse switch 12. Meanwhile, the local keyboard and mouse device 14 sends out a local control signal, and sends the local control signal to the keyboard and mouse switcher 12. The keyboard and mouse switcher 12 synthesizes the local control signal and the remote control signal into a control signal, and sends the control signal to the local host 11, so that the local host 11 controls the controlled device 3, and the remote keyboard and mouse device 22 and the local keyboard and mouse device 14 can control the controlled device 3 at the same time.
If the engineer is working on the workshop, if the remote keyboard and mouse device 22 can still control the controlled device 3, the misoperation can be caused, and even the safety hazard can be caused to the engineer. However, in the conventional KVM remote control system, if the remote keyboard and mouse device 22 is to disconnect the controlled device 3, the connection between the remote display 23 and the local host 11 is simultaneously disconnected, so that the remote display 23 cannot display the operating state of the controlled device 3, but the remote operator still needs to observe the operating state of the controlled device 3 to grasp the field situation.
The remote control system of the present invention has two operating states, a locked operating state and an unlocked operating state. When the remote control system is in the locked state, the KVM host 17 receives only the remote video signal from the DVI divider 13 without transmitting the remote control signal to the keyboard and mouse switch 12, and at this time, although the remote display 23 displays the operating state of the controlled device 3, the remote keyboard and mouse device 22 cannot control the controlled device 3. When the remote control system is in the unlocked state, the KVM host 17 both receives the remote video signal from the DVI divider 13 and transmits the remote control signal to the keyboard and mouse switch 12, and at this time, the remote display 23 displays the operating state of the controlled device 3, while the remote keyboard and mouse device can control the controlled device 3.
As shown in fig. 2, the keyboard and mouse switch 12 is provided with two control switches, namely, a lock switch 121 and an unlock switch 122, and two status indicators, namely, a lock status indicator 123 and an unlock status indicator 124. The keyboard and mouse switch 12 is provided with a main chip 125, and the main chip 125 checks whether the KVM switch 17 sends the remote control signal to the keyboard and mouse switch 12 and sends the result to the lock status indicator 123 and the unlock status indicator 124 for controlling whether they are illuminated. The main chip 125 receives signals from the lock switch 121 and the unlock switch 122 and sends the signals to the KVM host 17 to control the operating status of the KVM host 17.
When the remote control system is in the locked state, the unlock-state indicator light 124 does not illuminate; and at this time, if the locking switch 121 is pressed, the working state of the remote control system is not changed; if the unlock switch 122 is pressed at this time, the operating state of the remote control system changes to the unlocked state. When the remote control system is in the unlocked state, the locked state indicator light 123 does not emit light, and the unlocked state indicator light 124 emits green light; and at this time, if the locking switch 121 is pressed, the working state of the remote control system is changed into a locking state; if the unlock switch 122 is pressed at this time, the operating state of the remote control system is not changed.
If the operating state of the KVM host 17 is changed by only one control button, an erroneous operation may occur in which the control button is pressed down multiple times carelessly to return the KVM host 17 to the original operating state, and the KVM remote control system of the present invention controls the operating state of the KVM host 17 by two lock buttons 121 and an unlock button 122, respectively, thereby reducing the occurrence of the erroneous operation. In addition, after the remote keyboard and mouse device 22 and the controlled device 3 are disconnected, the KVM remote control system can still display the working state of the controlled device 3 on the remote display 23, so that a remote control worker can still master the field situation, but the remote control worker cannot control the controlled device 3 even if the remote keyboard and mouse device 22 is carelessly operated, and the occurrence of misoperation and safety accidents is reduced. The KVM remote control system can control the KVM host 17 at the local end 1, engineers can change the working state of the KVM host 17 at any time when problems are handled at the workshop stations, the remote end 2 is not required to be matched, and the KVM remote control system is safe, reliable and simple to operate. The KVM remote control system is simple to install, does not need to change a software system in the local host 11, has wide application range, and is suitable for the local hosts 11 of various operating systems and various controlled devices 3.
As shown in fig. 3, the controlled device 3 is provided with an emergency button 31, and the emergency stop module 16 includes a control system 161 and a two-way relay 162. The output terminal of the two-way relay 162 is connected to the controlled device 3, and one input terminal of the two-way relay 162 is connected to the emergency button 31. The other input end of the two-way relay 162 is connected with the output end of the control system 161, the input end of the control system 161 is connected with the keyboard and mouse switcher 12, and the remote emergency button 24 is connected with the remote server 21. When the remote emergency button 24 is pressed, the remote emergency button 24 sends a signal, and the signal is sent to the control system 161 via the remote server 21, the remote switch 25, the network, the local switch 18, the KVM host 17, and the keyboard and mouse switch 12, and the control system 161 sends a control signal to the two-way relay 162. And when the emergency button 31 is pressed, the emergency button 31 directly sends a control signal to the two-way relay. When the two-way relay 162 receives the control signal, the two-way relay 162 sends a signal to the controlled device 3, so that the controlled device 3 stops working. The emergency button 31 and the remote emergency button 24 can stop the controlled device 3, i.e. the controlled device 3 can be stopped urgently at both the local end 1 and the remote end 2, so that the KVM remote control system is safer and more reliable.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A KVM remote control system is characterized by comprising a remote end and a local end;
the local end comprises a keyboard and mouse switcher, a KVM host, a local host, local keyboard and mouse equipment, a local display, a DVI frequency divider and a local switch; the local keyboard and mouse equipment is connected with the keyboard and mouse switcher, and the keyboard and mouse switcher is connected with the local host; the local host is connected with the input end of the DVI frequency divider, and two output ends of the DVI frequency divider are respectively connected with the local display and the KVM host; the keyboard and mouse switcher is connected with the KVM host, and the KVM host is connected with a local switch; the local switch is connected with the remote end through a network; the remote end comprises a remote display and remote keyboard and mouse equipment;
the local host generates a video signal and sends the video signal to the DVI frequency divider, and the DVI frequency divider divides the video signal into a local video signal and a remote video signal; the local video signal is sent to the local display; the remote video signal is sent to the KVM host, and the KVM host sends the remote video signal to the remote display of the remote end through the local switch and the network;
the remote keyboard and mouse equipment of the remote end generates a remote control signal and sends the remote control signal to the KVM host through a network and the local switch, and the KVM host sends the remote control signal to the keyboard and mouse switcher; the local keyboard and mouse device generates a local control signal and sends the local control signal to the keyboard and mouse switcher; the keyboard and mouse switcher combines the remote control signal and the local control signal into a control signal and sends the control signal to a local host;
the remote control system has two working states of locking and unlocking;
when the remote control system is in a locked working state, the KVM host only receives the remote video signal from the DVI frequency divider and stops sending the remote control signal to the keyboard and mouse switcher;
when the remote control system is in an unlocking working state, the KVM host not only receives the remote video signal from the DVI frequency divider, but also sends the remote control signal to the keyboard and mouse switcher.
2. The KVM remote control system according to claim 1, wherein a control switch is disposed on the KVM switch, the control switch is connected to the KVM host; and changing the working state of the remote control system through the control switch.
3. The KVM remote control system of claim 2, wherein said control switch comprises a lock switch and an unlock switch;
when the remote control system is in an unlocking working state, if the locking switch is started, the working state of the remote control system is changed into a locking working state; if the unlocking switch is started, the working state of the remote control system is unchanged;
when the remote control system is in a locking working state, if the locking switch is started, the working state of the remote control system is unchanged, and if the locking switch is started, the working state of the remote control system is changed into an unlocking working state.
4. The KVM remote control system according to claim 1, wherein a status indicator is installed on the KVM switch, the status indicator is connected to the KVM host, and the KVM host is configured to display an operating status of the remote control system.
5. The KVM remote control system according to claim 1, wherein said local end further comprises an emergency stop module, said emergency stop module comprising a control system, a two-way relay;
the local host directly controls the controlled equipment, and an emergency button is arranged on the controlled equipment;
the output end of the two-way relay is connected with the controlled equipment, two input ends of the two-way relay are respectively connected with the emergency button and the control system, and the control system is connected with the keyboard and mouse switcher;
the remote end further comprises a remote emergency button, and the remote emergency button is connected with the remote server.
6. The KVM remote control system according to claim 5, wherein said remote emergency button sends a signal to said control system through said remote server, said remote switch, said local switch, said KVM host and said keyboard and mouse switcher, causing said control system to send a control signal to said two way relay; and after receiving the control signal of the emergency button or the control system, the two-way relay can open the output end of the two-way relay, and the controlled equipment stops working.
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| CN201811418612.7A CN109283910B (en) | 2018-11-26 | 2018-11-26 | KVM remote control system |
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| CN201811418612.7A CN109283910B (en) | 2018-11-26 | 2018-11-26 | KVM remote control system |
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| CN109283910B true CN109283910B (en) | 2021-06-01 |
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| CN109283910A (en) | 2019-01-29 |
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Address after: Room 318, No.28, Yuanwen Road, Minhang District, Shanghai 200000 Applicant after: Shanghai Corelli Software Co.,Ltd. Address before: Room 318, 28 Yuanwen Road, Minhang District, Shanghai 201100 Applicant before: SHANGHAI GLORYSOFT Co.,Ltd. |
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Application publication date: 20190129 Assignee: Gechuang Dongzhi (Shenzhen) Technology Co.,Ltd. Assignor: Shanghai Corelli Software Co.,Ltd. Contract record no.: X2022310000089 Denomination of invention: A KVM remote control system Granted publication date: 20210601 License type: Common License Record date: 20220829 |