TWI410798B - Wireless control module and kvm switch having the wireless control module - Google Patents

Abstract

A KVM switch includes a wireless control module, a main micro control unit (main MCU) and a plurality of PC interfaces. Each of the PC interfaces connects to a PC host, and the main MCU selects one of the several PC interfaces by reference to a control command, therefore, the main MCU selectively connects to the PC host which connects to the selected PC interface. The wireless control module connects to a portable device wirelessly, therefore, the portable device can be used to control the PC host connected to the selected PC interface, and the PC host can output data to the portable device through wireless transmission. Thus, the inventive KVM switch uses wireless transmission to replace traditional connection way that connects control apparatus by using cable lines. The inventive KVM switch is more convenient in remote control, and can reduce the cost of hardware substantially.

Description

Wireless control module and computer switcher with wireless control module

The invention relates to a computer switcher, and more particularly to a computer switcher capable of wirelessly controlling a long distance.

Now is a time when computers are in the doldrums. Many jobs need to be done by computers. Even for different purposes, one person may have multiple computers at the same time. Therefore, in order to use multiple computers at the same time, it is necessary to match the same number of input and output devices as the computer, so that it will occupy a considerable amount of space for the user.

In view of this, most of the current market use KVM Switch to solve the above problems. The computer switcher is mainly used to connect a plurality of computer mainframes at the same time, and a single input/output device. Through the switching of the computer switcher, the same set of input and output devices are used to respectively control a plurality of computer hosts. Originally, the user must have a set of input and output devices for each computer host. However, through the use of the computer switcher, a single input and output device can be used to control a plurality of computer mainframes, which can save a lot of hardware costs. Moreover, for a general enterprise or a company, the number of computer hosts or servers is hundreds, and if each server is equipped with a set of input and output devices, it will cost a considerable amount of money and will waste considerable More space. However, these servers are often operated or repaired by one or a few engineers. Therefore, through the use of a computer switcher, with a single or a small number of input and output devices, the company can save considerable cost and space.

However, the computer switchers currently on the market are connected to the input and output devices through cables, so the distance that can be operated is considerably limited. The user must be in the vicinity of the switch to operate the input and output device, and the operation location cannot be arbitrarily changed. If the user wants to extend the connection length of the input and output device and achieve the purpose of remote control, it must be achieved by an external device such as an extender. As a result, many hardware costs will be added, and the length that can be extended has a certain limit, which is not economical. Moreover, the input/output device must be limited to a peripheral device of the computer, such as a keyboard, a mouse, a display, and other devices using serial communication used by a general computer, and cannot be used as the input/output device through other devices. , manipulating the plurality of computer hosts or receiving data output by the plurality of computer hosts.

Moreover, although there are many computer peripheral devices equipped with Bluetooth transmission functions, such as a Bluetooth keyboard or a Bluetooth mouse, the user can achieve wireless control. However, the Bluetooth transmission system has a certain transmission distance, and the environment in which it is used has certain restrictions. For example, the Bluetooth mouse must be placed in the same room as the Bluetooth transceiver to receive the signal. Therefore, although wireless control is achieved, it is impossible to perform true remote control.

The main purpose of the present invention is to provide a wireless control module and a computer switch with a wireless control module, which can switch and control the computer switch through a portable device, thereby selecting a computer switch to be connected. One of the computer hosts, And the portable device is used to control the selected computer host.

To achieve the above objective, the present invention comprises a wireless control module, a main control micro processing unit and a plurality of computer interfaces, wherein the plurality of computer interfaces are respectively connected to different computer hosts, and the main control micro processing unit is based on a control command content. One of the computer interfaces is selected to connect to a selected computer host, and the wireless control module establishes a wireless connection with a portable device. Therefore, the user wirelessly controls the selected computer host through the portable device, and wirelessly transmits the data output by the selected computer host to the portable device.

Compared with the prior art, the achievable effect of the present invention is that when the user uses the computer switcher, the control device connected to the computer switcher, such as a keyboard, a display and a mouse, is not required to be connected to the selected computer host. For manipulation, a portable device can be used to wirelessly control the selected computer host through wireless transmission. Moreover, if the portable device is a mobile phone, it can also be wirelessly transmitted with the computer switch through the telephone system, so that there is no limit on the manipulation distance.

1‧‧‧Computer Switcher with Wireless Control Module

10‧‧‧Traditional Computer Switcher

11‧‧‧Wireless Control Module

111‧‧‧Wireless transmission interface

112‧‧‧Output/Input Device Interface

1121‧‧‧User interface

12‧‧‧Main Control Micro Processing Unit

13‧‧‧Computer interface

131~13N‧‧‧First Computer Interface~Nth Computer Interface

14‧‧‧Signal switching circuit

15‧‧‧Input and output interface埠

2‧‧‧Portable device

3‧‧‧Computer host

31~3N‧‧‧First Computer Host~Nth Computer Host

P1‧‧‧Command Packet

P2‧‧‧ data packet

4‧‧‧ proximal control device

41‧‧‧ Mouse

42‧‧‧ keyboard

43‧‧‧ display

The first figure is a connection diagram of a preferred embodiment of the present invention.

The second drawing is a block diagram of a preferred embodiment of the invention.

The third drawing is a block diagram of another preferred embodiment of the present invention.

The fourth drawing is a block diagram of still another preferred embodiment of the present invention.

DETAILED DESCRIPTION OF THE INVENTION A preferred embodiment of the present invention will be described in detail with reference to the drawings.

Please refer to the first figure, which is a connection diagram of a preferred embodiment of the present invention. As shown in the figure, a computer switch (KVM Switch) 1 having a wireless transmission module according to the present invention is used (hereinafter referred to as The computer switcher 1) connects a plurality of computer hosts 3 (31~3N) and a near-end control device 4. The proximal control device 4 is connected to the computer switch 1 by a cable entity, and may be mainly a mouse 41, a keyboard 42, a display 43, or other devices connected in series (not shown), but not Limited. Therefore, through the switching control of the computer switch 1, the user has to use a single control device 4 to individually control the plurality of computer hosts 3. However, the above is a function of the conventional computer switcher. The computer switch 1 of the present invention is characterized in that a wireless control module 11 is disposed inside, so that the computer switcher 1 can be connected to an external portable device. The device 2 performs wireless transmission. Therefore, the portable device 2 is used as the control device 4, and the user can use the portable device 2 to control the plurality of computer hosts 3 and receive the data output by the plurality of computer hosts 3. The wireless connection replaces the physical connection of the cable, eliminating the trouble of the entire line and prolonging the manipulation distance, so that the location where the user manipulates has a considerable flexibility.

2 is a block diagram of a preferred embodiment of the present invention. As shown in the figure, the computer switch 1 of the present invention mainly includes a wireless control module 11 and a main control micro processing unit. (Main MCU) 12 and multiple computer interfaces (PC Interface) 13 (131~13N). The wireless control module 11 is electrically connected to the main control micro-processing unit 12, and the main control micro-processing unit 12 is electrically connected to the plurality of computer interfaces 13, and the plurality of computer interfaces 13 are respectively connected to the plurality of computer mainframes 3. The first computer interface 131 is connected to the first computer host 31, the second computer interface 132 is connected to the second computer host 32, and the Nth computer interface 13N is connected to the Nth computer host. 3N, and so on. The wireless control module 11 establishes a wireless connection with the portable device 2, and the main control microprocessor unit 12 can also establish a physical connection with the proximal control device 4 via a cable. Therefore, the main control micro-processing unit 12 receives a control command from the portable device 2 or from the near-end control device 4, and performs switching control according to the content of the control command, and selects one of the plurality of computer interfaces 13 And, in turn, connected to the computer host 3 to which the selected computer interface 13 is connected. In this way, the user can control the selected computer host 3 through the portable device 2 or the near-end control device 4.

The wireless control module 11 mainly includes a wireless transmission interface 111 and an output/input device interface 112. The wireless transmission interface 111 is wirelessly connected to the portable device 2, and the output/input device interface 112 is electrically connected to the wireless transmission. The interface 111 and the main control microprocessing unit 12. The output/input device interface 112 can be mainly a high-performance Micro Control Unit (MCU) or an Embedded System Chip (or System On a Chip, SOC), and is internally A user interface (UI) 1121 is stored. The output/input device interface 112 performs an operation of encoding/decoding the received electrical signal through the user interface 1121, so that the portable device 2 is used regardless of the function, format or brand of the user. Control, there will be no compatibility with the computer switcher 1 (detailed later). Further, it is ensured that the portable device 2 can successfully control the selected computer host 2, and the selected computer host 2 can also successfully output data to the portable device 2.

When the user performs the control, an input wireless packet is sent through the portable device 2, and the wireless transmission interface 11 in the computer switch 1 receives the input. The wireless packet is converted to an input electrical signal and transmitted to the output/input device interface 112. The output/input device interface 112, through the user interface 1121, decodes the input electrical signal into a signal format that the main control micro-processing unit 12 can process. Then, the input electrical signal received and processed by the main control micro-processing unit 12 is then transmitted to the computer host 3 to which the selected computer interface 13 is connected. When the selected host computer 3 outputs data, an output electrical signal is sent to the main control micro-processing unit 12, and the main control micro-processing unit 12 is processed to transmit the output electrical signal to the output/ The input device interface 112 is configured to encode the output electrical signal through the user interface 1121 into a signal format that the portable device 2 can process. Finally, it is transmitted to the wireless transmission interface 111, converted into an output wireless packet, and then transmitted to the portable device 2. The codec format of the electrical signals is mainly determined according to the portable device 2 used, and the user interface 1121 can be customized accordingly, so that the computer switch can be processed. The wireless packet sent by the portable device 2 used by the user.

However, when the user performs the manipulation through the proximal control device 4, the portable device 2 can be regarded as one of the remote control devices of the computer switcher 1, and the portable device 2 is regarded as One of the plurality of computer hosts 3. The user can control the main control micro processing unit 12 to perform switching control through the near-end manipulation device 4, thereby selecting one of the plurality of computer interfaces 13 or the portable device 2. When the portable switch 2 is selected by the switch 1, the user can manipulate the portable device 2 through the near-end control device 4. For example, the portable device 2 can be operated by the keyboard 42 to send a short message, and after receiving the data output by the portable device 2, it is displayed on the display 43. In this way, the computer switcher 1 can be regarded as the plural The sharing device of the host computer 3 and the portable device 2 is used to make the computer switcher 1 more diversified.

It is worth mentioning that the portable device 2 of different functions, formats and brands may be provided with different wireless transmission modules (not shown), and the computer switch 1 is mainly capable of transmitting through the Bluetooth (Blue tooth) transmission system. Or a Wireless Fidelity (WIFI) system and the portable device 2 perform wireless transmission. Moreover, if the portable device 2 is a mobile phone, the computer switch 1 can be wirelessly transmitted to the portable device 2 through the telephone system. Therefore, as long as the user holds the portable device 2 and stays at the location where the telephone signal is received, the computer switch 1 can be wirelessly operated through the telephone system, so that the remote control can be truly performed without the limitation of the manipulation distance.

Referring to the third embodiment, a block diagram of another preferred embodiment of the present invention is shown. As shown in the figure, the computer switch 1 of the present invention further includes a signal switching circuit 14 electrically connected to the output/input. The device interface 112, the main control microprocessing unit 12, and the plurality of computer interfaces 13. The input wireless packet transmitted by the portable device 2 can be a command packet P1 or a data packet P2. After receiving the packets P1 and P2, the wireless transmission interface 111 receives the packets. Convert to this input electrical signal. When the output/input device interface 112 is converted to a signal format, if it is determined that the content of the input electrical signal is the control command, the input electrical signal is transmitted to the main control micro-processing unit 12, and the main control micro-processing unit 12 That is, the corresponding control is performed according to the content of the control command. And if the output/input device interface 112 determines that the content of the input electrical signal is general data, the input electrical signal is transmitted to the signal switching circuit 14, and the signal is directly switched through the signal. The road 14 and the selected computer interface 13 transmit the data to the selected host computer 3. In this way, the main control micro-processing unit 12 is only used to process the control command, and does not process the general data, thereby greatly reducing the burden on the main control micro-processing unit 12, and making the operation of the computer switch 1 more Smooth.

4 is a block diagram of still another preferred embodiment of the present invention. The main purpose of the present invention is to enable a user to use the portable device 2 to access the computer switch through the wireless control module 11. 1 Perform wireless control to replace the traditional mode in which the cable body is connected to the near-end control device 4. Therefore, the wireless control module 11 can be independently an external module (Wireless Dongle) and connected to one of the input and output interfaces 埠15 of a conventional computer switcher 10. The input/output interface 埠 15 is mainly used for physically connecting the near-end control device 4 and electrically connected to the main control micro-processing unit 12 and the signal switching circuit 14 for transmitting the electrical signals. When the user uses the portable device 2 to perform the control, the input wireless packet sent by the portable device 2 is processed by the external wireless control module 11 to convert the input wireless packet and After being decoded into the signal format that the conventional computer switch 10 can process, the image is transmitted to the conventional computer switch 10 through the input/output interface 埠15. Thereby, the portable device 2 is used as the proximal control device 4. In this way, the user does not need to replace the original computer switch 10 with the computer switch 1 having the wireless control module, and the internal hardware circuit of the conventional computer switch 10 is not required to be modified. The connection of the wireless control module 11 directly uses the portable device 2 for wireless control. As a result, the user can save considerable update costs.

The above description is only a preferred embodiment of the present invention, and thus is not intended to limit the scope of the present invention. The equivalents of the present invention are all included in the scope of the present invention and are combined with Chen Ming.

1‧‧‧Computer Switcher with Wireless Control Module

11‧‧‧Wireless Control Module

111‧‧‧Wireless transmission interface

112‧‧‧Output/Input Device Interface

1121‧‧‧User interface

12‧‧‧Main Control Micro Processing Unit

13‧‧‧Computer interface

131~13N‧‧‧First Computer Interface~Nth Computer Interface

2‧‧‧Portable device

3‧‧‧Computer host

31~3N‧‧‧First Computer Host~Nth Computer Host

4‧‧‧ proximal control device

Claims (15)

A computer switch (KVM Switch) having a wireless control module is wirelessly connected to the computer switch through a portable device, and the computer switch includes: a plurality of computer interfaces (PC Interface). Each of the computer interfaces is respectively connected to a computer host; a main control micro processing unit (Main MU) is electrically connected to the plurality of computer interfaces, and is controlled according to the content of a control command, and one of the computers is selected. An interface for connecting the computer host to which the selected computer interface is connected, and the main control microprocessor unit further establishes a physical connection with a proximal control device via a cable, thereby manipulating the selected one through the proximal control device The computer host connected to the computer interface, wherein the near-end control device is a mouse, a keyboard and a display; and a wireless control module (wireless control module) electrically connected to the main control micro-processing unit, and the portable device The device establishes a wireless connection, receives an input wireless packet from the portable device, or transmits an output wireless packet to the portable device After the switching control of the main control micro processing unit is completed, the portable device wirelessly transmits the selected computer host, and the main control micro processing unit may select the switching control after the completion of the switching control. The plurality of computer interfaces and one of the portable devices are used to control the portable device as a controllable computer host and through the proximal control device. The computer switcher according to claim 1, wherein the wireless control module The method includes: a wireless interface (Wireless Interface), establishing a wireless connection with the portable device, receiving the input wireless packet from the portable device, converting to an input electrical signal, and receiving an output electrical After the signal is converted into the output wireless packet and transmitted to the portable device; and an output/input interface (In/Out Interface), electrically connected to the wireless transmission interface and the main control microprocessor unit, and internally stored therein a user interface (UI), the output/input device interface receives the output electrical signal from the main control micro-processing unit, and encodes the signal format that can be processed by the portable device through the user interface, and then transmits the signal to the user interface The wireless transmission interface receives the input electrical signal from the wireless transmission interface, and decodes the signal format that can be processed by the main control micro processing unit through the user interface, and then transmits the signal to the main control processing unit for processing. The computer switcher of claim 2, wherein the output/input device interface is a Micro Control Unit (MCU) or an Embedded System Chip. The computer switcher of claim 1, wherein the wireless control module is wirelessly connected to the portable device via a Bluetooth (Blue tooth) transmission system. The computer switcher according to claim 1, wherein the wireless control module is wirelessly connected to the portable device through a Wireless Fidelity (WIFI) system. The computer switcher of claim 1, wherein the portable device is a mobile phone, and the wireless control module communicates with the portable device through a telephone system Make a wireless connection. The computer switcher of claim 2, further comprising a signal switching circuit (Switch) electrically connected to the output/input device interface, the main control micro processing unit and the plurality of computer interfaces, the main The control micro-processing unit switches the signal switching circuit according to the content of the control command, thereby selecting one of the plurality of computer interfaces and connecting the computer host to which the selected computer interface is connected. The computer switcher of claim 7, wherein the input wireless packet is a command packet or a data packet. The computer switcher according to claim 8, wherein the wireless control module receives the command packet, and after converting and decoding, transmitting the input electrical signal whose content is the control command to the main control micro-processing And the main control micro processing unit switches the signal switching circuit according to the content of the control command. The computer switcher of claim 8, wherein the wireless control module receives the data packet, and after converting and decoding, transmits the content through the signal switching circuit and the selected computer interface. The input electrical signal of the data is transmitted to the selected computer host. A wireless control module is configured to connect to a computer switcher, and the computer switcher establishes a wireless connection with a portable device through the wireless control module, the wireless control module includes: a wireless transmission interface, and The portable device establishes a wireless connection, receives an output electrical signal, converts it into an output wireless packet, transmits the same to the portable device, and receives an input wireless packet from the portable device, and converts it into a Input electrical signal; and an output/input device interface, electrically connecting the wireless transmission interface and switching the computer The user interface is internally received, and the output/input device interface receives the output electrical signal transmitted by the computer switcher, and the user interface encodes the signal format that can be processed by the portable device, and then transmits the signal to the signal format processed by the portable device. The wireless transmission interface receives the input electrical signal from the wireless transmission interface and is decoded by the user interface into a signal format that can be processed by the computer switcher, and then transmitted to the computer switcher; The portable device performs switching control on the computer switcher and performs wireless control on the selected one of the computer hosts, and the computer switcher can also select a plurality of computer hosts and the portable device after the switching is completed. One of the above, the portable device is used as a controllable computer host, and is controlled by the computer switch through a proximal control device connected by a cable entity, wherein the proximal control device is a mouse, Keyboard and monitor. The computer switcher according to claim 11, wherein the output/input device interface is a micro control unit (MCU) or an embedded system chip. The wireless control module of claim 11, wherein the wireless transmission interface is wirelessly connected to the portable device via a Bluetooth transmission system. The wireless control module of claim 11, wherein the wireless transmission interface is wirelessly connected to the portable device through a wireless compatible authentication system. The wireless control module of claim 11, wherein the portable device is a mobile phone, and the wireless transmission interface is wirelessly connected to the portable device through a telephone system.