CN111309168A - System and device for realizing remote control of intelligent equipment by mouse and keyboard - Google Patents
System and device for realizing remote control of intelligent equipment by mouse and keyboard Download PDFInfo
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- CN111309168A CN111309168A CN202010059177.4A CN202010059177A CN111309168A CN 111309168 A CN111309168 A CN 111309168A CN 202010059177 A CN202010059177 A CN 202010059177A CN 111309168 A CN111309168 A CN 111309168A
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- 238000004891 communication Methods 0.000 claims description 39
- 238000012545 processing Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 6
- 230000035515 penetration Effects 0.000 claims description 3
- 230000017525 heat dissipation Effects 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 abstract description 6
- 241000699666 Mus <mouse, genus> Species 0.000 description 66
- 238000010586 diagram Methods 0.000 description 7
- 238000003032 molecular docking Methods 0.000 description 3
- 230000010354 integration Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 241000699660 Mus musculus Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004883 computer application Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
- G06F3/038—Control and interface arrangements therefor, e.g. drivers or device-embedded control circuitry
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/02—Input arrangements using manually operated switches, e.g. using keyboards or dials
- G06F3/023—Arrangements for converting discrete items of information into a coded form, e.g. arrangements for interpreting keyboard generated codes as alphanumeric codes, operand codes or instruction codes
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
- G06F3/0354—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor with detection of 2D relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks
- G06F3/03543—Mice or pucks
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/02—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
- H04L67/025—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP] for remote control or remote monitoring of applications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/14—Session management
- H04L67/141—Setup of application sessions
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Input From Keyboards Or The Like (AREA)
Abstract
A system for realizing remote control of intelligent equipment by a mouse and a keyboard comprises an information-to-network transmitter, an information network receiver and a network exchange server system, wherein the information-to-network transmitter is communicated with the information network receiver through the network exchange server system; the information-to-network transmitter is connected with a mouse keyboard through a mouse keyboard input USB interface, a network control transmitting module in the information-to-network transmitter is communicated with a network control receiving module in the information network receiver through a network exchange server system, and the information network receiver is connected with controlled intelligent equipment through a mouse keyboard USB output interface. The system fully utilizes the original mouse and keyboard, expands the function of network operation, realizes remote (or same) network operation, greatly saves maintenance cost, improves maintenance efficiency, is also greatly convenient for individuals to realize mobile office work, has low operation cost and stronger popularization, and can save social total cost.
Description
Technical Field
The invention belongs to the technical field of computer application and electronic equipment application, and particularly relates to a system and a device for realizing remote control of an intelligent device by a mouse and a keyboard.
Background
At present, a mouse and a keyboard are basically operated locally, when some equipment is operated remotely through the mouse and the keyboard, the equipment to be operated needs to be on the internet firstly, and the equipment to be operated needs to run a specific program secondly, but some equipment does not have the functional program or has a plurality of limitations, so that the remote operation cannot be realized, the problem can be solved only by running to the field for a long distance under the condition of maintenance, the waste of time and money is caused, and the waste of the whole social resources is increased.
Disclosure of Invention
The invention provides a device and a system for realizing remote control of a mouse keyboard on intelligent equipment, which aims to overcome the defects of the prior art and ensure that a user can remotely operate the mouse keyboard to maintain and use the remote equipment at any time and any place through a network.
The invention adopts the following technical scheme to realize the purpose of the invention:
a system for realizing remote control of intelligent equipment by a mouse and a keyboard comprises an information-to-network transmitter, an information network receiver and a network exchange server system, wherein the information-to-network transmitter is communicated with the information network receiver through the network exchange server system; the information network receiver comprises a network control receiving module, a mouse keyboard information input module and a mouse keyboard USB output interface; the information-to-network transmitter is connected with a mouse keyboard through a mouse keyboard input USB interface, a network control transmitting module in the information-to-network transmitter is communicated with a network control receiving module in the information network receiver through a network exchange server system, and the information network receiver is connected with controlled intelligent equipment through a mouse keyboard USB output interface.
Furthermore, the power supply of the information-to-network transmitter is a 5V power supply, the mouse keyboard information output module is composed of a USB keyboard and mouse extension control chip, and the mouse keyboard information output module converts data transmitted by a USB input interface of a mouse keyboard into network data and transmits the network data to the network control transmitting module.
Furthermore, a network control receiving module in the information network receiver processes data received on a network and forwards the data to a mouse and keyboard information input module, the mouse and keyboard information input module forwards the received data to a USB port of the controlled device through a mouse and keyboard USB output interface, and the power supply of the mouse and keyboard information network receiver is supplied by the USB port of the controlled intelligent device.
Further, the network exchange server system is an auxiliary service system for helping the information-to-network transmitter and the information-to-network receiver to establish communication, and comprises a mouse and keyboard matching and docking module and a mouse and keyboard data forwarding module, wherein the mouse and keyboard matching and docking module consists of a mouse and keyboard identification number database, an IP address and port exchange processing system, a communication penetration processing system, a DNS server and mouse and keyboard data forwarding software, and different communication modes are established according to different network environments.
Further, the information-to-network transmitter and the information-to-network receiver may directly establish communication in a local area network environment, and the information-to-network transmitter and the information-to-network receiver establish communication in an internet environment by means of a network switching server system.
Further, different modules of different network environments play different roles, and the method comprises the following steps:
(1) implementing the steps in the IPV4 network:
(a) establishing mouse and keyboard identification number database information;
(b) assisting in establishing peer-to-peer network traversal communication between the information-to-network transmitter and the information-to-network receiver;
(c) forwarding the point-to-point non-penetrable communication;
(2) implementing the steps in the IPV6 network:
(a) establishing mouse and keyboard identification number database information;
(b) facilitating establishment of direct communication between the information-to-network transmitter and the information-to-network receiver.
Furthermore, the controlled intelligent device is various computers, servers, virtual machines, smart phones, smart televisions, tablet computers, set-top boxes and other various devices supporting mouse and keyboard, which are provided with USB interfaces.
Further, the information network transmitter and the information network receiver may be independent modules, or may be directly integrated into other intelligent devices.
Further, the intelligent device is a desktop computer, a notebook computer, a tablet computer, a server, an intelligent television, a mobile phone, a set-top box and other devices using a mouse and a keyboard.
The invention also relates to a device for realizing the remote control of the intelligent equipment by the mouse and the keyboard, which consists of an information-to-network transmitter and an information-to-network receiver which are matched for use, wherein the information-to-network transmitter and the information-to-network receiver both comprise a shell and an internal circuit board, one end of the internal circuit board of the information-to-network transmitter is provided with a USB interface, and the side surface of the internal circuit board of the information-to-network transmitter is provided with a power supply interface; one end of an internal circuit board of the information network receiver is provided with a USB interface of the controlled intelligent device, the shell is provided with a groove matched with the USB interface and the power interface, and one end of the shell, far away from the USB interface, is provided with a heat dissipation hole.
The invention has the beneficial effects that: the system can enable a user to operate the mouse and keyboard through the Internet network, the operation space distance is expanded, the original mouse and keyboard are fully utilized, the function of network operation is expanded, remote (or same-place) network operation is realized, remote operation can be performed on some equipment which does not have network connection and uses the mouse and keyboard, a brand-new operation mode is provided for equipment maintenance personnel and personnel needing remote mobile office work, the maintenance cost can be greatly saved, the maintenance efficiency is improved, the mobile office work can be realized by individuals conveniently, the operation cost is low, the popularization is stronger, and the social total cost can be saved.
Drawings
FIG. 1 is a schematic overall flow diagram of the system of the present invention;
FIG. 2 is a schematic diagram of an information-to-network transmitter according to the present invention;
FIG. 3 is a schematic diagram of an information network receiver according to the present invention;
FIG. 4 is a functional diagram of a network switching server system according to the present invention;
FIG. 5 is a schematic diagram of an internal circuit board of the message-to-network transmitter according to the present invention;
fig. 6 is a schematic structural diagram of an internal circuit board of the information network receiver according to the present invention.
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.
As shown in fig. 1-4, a system for implementing mouse and keyboard remote control of an intelligent device includes an information-to-network transmitter, an information-to-network receiver, and a network switching server system, wherein the information-to-network transmitter establishes communication with the information-to-network receiver through the network switching server system; the information network receiver comprises a network control receiving module, a mouse keyboard information input module and a mouse keyboard USB output interface; the information-to-network transmitter is connected with the mouse keyboard through a mouse keyboard input USB interface, a network control transmitting module in the information-to-network transmitter is communicated with a network control receiving module in the information network receiver through a network exchange server system, the information network receiver is connected with the controlled intelligent equipment through a mouse keyboard USB output interface, and finally the mouse keyboard remotely controls and operates the intelligent equipment through a network.
The power supply of the information-to-network transmitter is an external 5V power supply, a USB input interface of a mouse and a keyboard is connected with a common mouse and a keyboard, an information output module of the mouse and the keyboard is composed of a USB keyboard and mouse extension control chip WCH CH9350L (the chip can be replaced by other similar functional chips or modules, the invention can be realized only by the similar functional chips and does not need specific chips), the data transmitted by the mouse and the keyboard through the USB interface is converted into network data and transmitted to a network control transmitting module, the network control transmitting module is composed of an ESP8266 module (the module can be replaced by other similar functional modules, mainly serial ports are converted into WIFI and programmable control data communication, for example, similar modules such as ESP32 and the like, and also can be a module composed of a wired network chip and a programmable control data communication), and the main functions of firmware written in the single chip 8266: and establishing a network communication channel with the information network receiver, and then processing data and transmitting the data to the information network receiver through a network.
Among the three modules of the information network receiver, the network control receiving module is composed of an ESP8266 module (the module can be replaced by other similar functional modules, mainly the modules for converting serial ports into WIFI and carrying out programmable control data communication, such as the ESP32 and the like, the invention can be realized only by the similar functional modules without a specific module or a module consisting of a wired network chip and a single chip microcomputer), the data received on a firmware programming processing network is written by the network control receiving module and then is transmitted to the mouse and keyboard information input module, the mouse and keyboard information input module is composed of a USB keyboard mouse extension control chip WCHCH9350 (the chip can be replaced by other similar functional chips or modules, the invention can be realized only by the similar functional chips without the specific chips), the mouse and keyboard information input module transmits the data received by the ESP8266 to a USB port of a controlled device through a mouse and keyboard output interface 9350L, the power supply of the mouse and keyboard information network receiver is supplied by a USB port of the controlled intelligent device, after the mouse and keyboard information network receiver is powered on, firmware written in an ESP8266 module starts to run, and the firmware functions that a router is connected firstly, and then different communication modes are carried out according to different addresses of IPV4 and IPV 6.
The network communication between the information-to-network transmitter and the information-to-network receiver has 3 modes in an IPV4 network, firstly, the information-to-network transmitter does not need to communicate with a server at the same time when the information-to-network transmitter is in the same local area network, an ESP8266 module is firstly connected with a router after the information-to-network transmitter is powered on, then a monitoring port is started, if the broadcast data sent by the information-to-network receiver is received, the communication is directly established with the information-to-network receiver after the verification and matching are passed, the operation data of a mouse and a keyboard are directly communicated in the mode, and the following 2 communication modes are not tried if the mode is successful; secondly, the information-to-network transmitter also sends a request for matching the information network receiver to the network exchange server system after being powered on, if the matching is successful on the network exchange server system, the information-to-network transmitter and the information network receiver try to carry out penetrating communication, if the matching is successful, the operation data of the mouse and the keyboard are carried out the penetrating communication in this way, and thirdly, if the communication modes in the step 2 are not successful, the server transfers the operation data of the mouse and the keyboard; the above three communication modes are preferably the 1 st type, the 2 nd type is selected if the 1 st type is unsuccessful, and the 3 rd type is selected if the 2 nd type is unsuccessful.
The network communication between the information-to-network transmitter and the information-to-network receiver adopts a direct communication mode in an IPV6 network, the information-to-network transmitter sends a request for matching the information-to-network receiver to the network exchange server system after being powered on, the information-to-network receiver IPV6 address is obtained through the network exchange server system, the direct communication between the information-to-network transmitter and the information-to-network receiver is realized, the remote operation is carried out, and the IPV6 address can be analyzed by the DNS service of the network exchange server system per se and can also be a matching service for programming to realize an IPV6 address port.
The network exchange server system is an auxiliary service system for helping the information-to-network transmitter and the information-to-network receiver to establish communication, and comprises a mouse and keyboard matching and butting module and a mouse and keyboard data forwarding module, and the auxiliary service system consists of a mouse and keyboard identification number database, an IP address and port exchange processing system, a communication penetration processing system, a DNS server and mouse and keyboard data forwarding software. Different network environments, the different modules play different roles, and the method comprises the following steps:
(1) implementing the steps in the IPV4 network:
(a) establishing mouse and keyboard identification number database information;
(b) assisting in establishing peer-to-peer network traversal communication between the information-to-network transmitter and the information-to-network receiver;
(c) forwarding the point-to-point non-penetrable communication;
(2) implementing steps in an IPV6 network
(a) Establishing mouse and keyboard identification number database information;
(b) facilitating the establishment of direct communication between said message-to-network sender and said message-to-network receiver, either via DNS services alone or by acting to exchange IPV6 addresses and ports relative to said message-to-network sender and said message-to-network receiver to facilitate direct communication therebetween;
the information network transmitter and the information network receiver are connected with the same or different internet networks, and the information network receiver and the controlled device are connected through the USB port, so that the controlled device does not influence the operation when being connected with the network; the information-to-network transmitter and the information-to-network receiver can be one-to-one, one-to-many, many-to-one, or many-to-many, and can realize discrete docking or integrated integration in different occasions; the information network transmitter and the information network receiver can be independent modules or can be directly integrated into other equipment. The integration into other devices is also an application of the invention, and the information network receiver and the information network transmitter can be integrated parts of desktop computers, notebook computers, tablet computers, servers, smart televisions, mobile phones, set-top boxes and other intelligent devices using mouse and keyboard.
The information network receiver is connected with the controlled equipment through the USB port, so the mode can control any equipment with the USB port, and the controlled equipment can be various computers, servers, virtual machines, smart phones, smart televisions, tablet computers, set-top boxes and other various equipment supporting mouse and keyboard.
The invention also relates to a device for realizing the remote control of the intelligent equipment by the mouse and the keyboard, which consists of an information-to-network transmitter and an information network receiver which are matched for use, wherein the information-to-network transmitter and the information network receiver both comprise shells and internal circuit boards, the structural schematic diagrams of the internal circuit boards are shown in figures 5 and 6, one end of the internal circuit board of the information-to-network transmitter is provided with a USB interface 11, the USB interface is connected with a USB keyboard-mouse extension control chip 14 in the internal circuit board, the USB interfaces 11 are provided with two, one is connected with a mouse, the other is connected with a keyboard, the side surface is provided with a power interface 13, and the power interface 13 is externally connected with a 5V power supply; one side of circuit board still is provided with ESP8266 module 12, ESP8266 module 12 is network control transmission module, the one end of information network receiver's internal circuit board is provided with the USB interface 23 of the intelligent equipment of controlled, and inside is provided with ESP8266 module 22 and USB keyboard mouse extension control chip 24, ESP8266 module 22 is network control receiving module, USB interface 23 can directly link to each other with intelligent equipment, the shell be provided with USB interface and power interface assorted recess, the one end of keeping away from the USB interface of shell is provided with the louvre.
The invention is based on a hardware device, software is written in a chip arranged in the hardware device, and finally, the mouse and the keyboard operate remote intelligent equipment through a network.
The above description is only an example of the present invention, and is not intended to limit the present invention in any way, and those skilled in the art can make many variations and modifications of the present invention without departing from the scope of the present invention by using the method disclosed above, and the present invention is covered by the claims.
Claims (10)
1. The utility model provides a system for realize mouse keyboard remote control smart machine which characterized in that: the system comprises an information-to-network transmitter, an information network receiver and a network exchange server system, wherein the information-to-network transmitter establishes communication with the information network receiver through the network exchange server system; the information network receiver comprises a network control receiving module, a mouse keyboard information input module and a mouse keyboard USB output interface; the information-to-network transmitter is connected with a mouse keyboard through a mouse keyboard input USB interface, a network control transmitting module in the information-to-network transmitter is communicated with a network control receiving module in the information network receiver through a network exchange server system, and the information network receiver is connected with controlled intelligent equipment through a mouse keyboard USB output interface.
2. The system of claim 1, wherein: the power supply of the information-to-network transmitter is a 5V power supply, the mouse keyboard information output module is composed of a USB keyboard and mouse extension control chip, and the mouse keyboard information output module converts data transmitted by a USB input interface of a mouse keyboard into network data and transmits the network data to the network control transmitting module.
3. The system of claim 1, wherein: the network control receiving module in the information network receiver processes data received on a network and forwards the data to the mouse and keyboard information input module, the mouse and keyboard information input module forwards the received data to the USB port of the controlled equipment through the USB output interface of the mouse and keyboard, and the power supply of the mouse and keyboard information network receiver is supplied by the USB port of the controlled intelligent equipment.
4. The system of claim 1, wherein: the network exchange server system is an auxiliary service system for helping the information-to-network transmitter and the information network receiver to establish communication, comprises a mouse and keyboard matching and butting module and a mouse and keyboard data forwarding module, and consists of a mouse and keyboard identification number database, an IP address and port exchange processing system, a communication penetration processing system, a DNS server and mouse and keyboard data forwarding software, and different communication modes are established according to different network environments.
5. The system of claim 1, wherein: the information-to-network transmitter and the information-to-network receiver may establish communication directly in a local area network environment, and establish communication by means of a network switching server system in an internet environment.
6. The system of claim 4, wherein: the different modules play different roles according to different network environments, and the method comprises the following steps:
(1) implementing the steps in the IPV4 network:
(a) establishing mouse and keyboard identification number database information;
(b) assisting in establishing peer-to-peer network traversal communication between the information-to-network transmitter and the information-to-network receiver;
(c) forwarding the point-to-point non-penetrable communication;
(2) implementing the steps in the IPV6 network:
(a) establishing mouse and keyboard identification number database information;
(b) facilitating establishment of direct communication between the information-to-network transmitter and the information-to-network receiver.
7. The system of claim 1, wherein: the controlled intelligent equipment is various computers, servers, virtual machines, smart phones, smart televisions, tablet computers, set-top boxes and other various equipment supporting mouse and keyboard, wherein the computer, the servers, the virtual machines, the smart phones, the smart televisions and the tablet computers are provided with USB interfaces.
8. The system of claim 1, wherein: the information network transmitter and the information network receiver can be independent modules, and can also be directly integrated into other intelligent equipment.
9. The system according to claim 1 or 7, characterized in that: the intelligent device is a desktop computer, a notebook computer, a tablet computer, a server, an intelligent television, a mobile phone, a set-top box and other devices using a mouse and a keyboard.
10. The utility model provides a realize device of mouse keyboard remote control smart machine which characterized in that: the information-to-network transmitter and the information-to-network receiver both comprise a shell and an internal circuit board, wherein one end of the internal circuit board of the information-to-network transmitter is provided with a USB interface, and the side surface of the internal circuit board of the information-to-network transmitter is provided with a power interface; one end of an internal circuit board of the information network receiver is provided with a USB interface of the controlled intelligent device, the shell is provided with a groove matched with the USB interface and the power interface, and one end of the shell, far away from the USB interface, is provided with a heat dissipation hole.
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CN202010059177.4A CN111309168A (en) | 2020-01-16 | 2020-01-16 | System and device for realizing remote control of intelligent equipment by mouse and keyboard |
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CN202010059177.4A CN111309168A (en) | 2020-01-16 | 2020-01-16 | System and device for realizing remote control of intelligent equipment by mouse and keyboard |
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CN202010059177.4A Pending CN111309168A (en) | 2020-01-16 | 2020-01-16 | System and device for realizing remote control of intelligent equipment by mouse and keyboard |
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Cited By (1)
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CN111966612A (en) * | 2020-07-20 | 2020-11-20 | 北京北冥鲲科技有限公司 | Keyboard mouse analogue means based on ethernet |
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CN205388742U (en) * | 2016-01-22 | 2016-07-20 | 大连交通大学 | Remote control's controller can carry out computer |
CN109358759A (en) * | 2018-09-05 | 2019-02-19 | 上海贝锐信息科技股份有限公司 | A kind of system and method using long-range control input controller controls controlled terminal |
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Patent Citations (4)
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CN1921486A (en) * | 2006-09-15 | 2007-02-28 | 北京天地互连信息技术有限公司 | IPv6 remote monitoring device and method |
CN102739612A (en) * | 2011-04-12 | 2012-10-17 | 深圳市金蝶中间件有限公司 | Remote control method and intermediate server |
CN205388742U (en) * | 2016-01-22 | 2016-07-20 | 大连交通大学 | Remote control's controller can carry out computer |
CN109358759A (en) * | 2018-09-05 | 2019-02-19 | 上海贝锐信息科技股份有限公司 | A kind of system and method using long-range control input controller controls controlled terminal |
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