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38 results about "KVM switch" patented technology

A KVM switch (with KVM being an abbreviation for "keyboard, video and mouse") is a hardware device that allows a user to control multiple computers from one or more sets of keyboards, video monitors, and mice. Although multiple computers are connected to the KVM, typically a smaller number of computers can be controlled at any given time. Modern devices have also added the ability to share other peripherals like USB devices and audio.

Monitor riser with docking station

A monitor riser may include a casing and KVM switch. The casing includes an internal space and supports a monitor. The KVM switch is disposed in the internal space and includes a KVM unit, I / O unit, first port, second port, HMI unit, and expansion unit having a speaker. The KVM unit is electrically coupled to the first port and second port, HMI unit, I / O unit, and expansion unit. A keyboard, monitor and mouse is electrically coupled to the I / O unit. The HMI unit detects a touch input and generates a first signal and second signal. The KVM unit receives the first signal and electrically couples a first computing device electrically coupled to the first port to the keyboard, monitor, mouse, and speaker, and receives the second signal and electrically couples a second computing device electrically coupled to the second port to the keyboard, monitor, mouse, and speaker.
Owner:COOLER MASTER TECH

A switching circuit and KVM switch

The utility model relates to switching circuit technical field, concretely relates to a switching circuit and switch. The circuit includes multichannel video input module, video processing module and video output module, and video processing module includes video processing chip, and the input of video processing chip is connected with multichannel video input module to receive multichannel video signal, and the output is connected with video output module, and video processing chip is built -in with the multiple storage units corresponding setting of multichannel video input module, and each storage unit is preloaded with the same preset expansion display identification data and multiple preset resolution templates, and video processing chip is used to receive multichannel and preset expansion display identification data matching video signal, and according to the resolution of the display device connected with video output module, calls preset resolution template and processes video signal, and the video signal after processing is output through video output module. The present application can avoid the black screen in the process of switching signal source, and improve user experience.
Owner:SHENZHEN GREEN CONNECTION TECH CO LTD

A KVM switch with screen splitting

This utility model discloses a KVM switch with screen splitting, belonging to the field of computer technology. The mouse and keyboard interfaces are electrically connected to the computer's VGA and PS / 2 interfaces, with each VGA and PS / 2 interface corresponding to a specific computer host. A VGA-to-HDMI chip also corresponds to a specific computer VGA and PS / 2 interface. The input of the VGA-to-HDMI chip is electrically connected to the corresponding computer host via the VGA and PS / 2 interfaces. The output of the VGA-to-HDMI chip is electrically connected to the input of a video splitting processing chip, which in turn is electrically connected to the input of an HDMI-to-VGA chip. The output of the HDMI-to-VGA chip is electrically connected to the VGA interface of the display screen. The video splitting processing chip communicates with an MCU. This KVM switch with screen splitting solves the problem of complex internal wiring and inconvenient maintenance in existing switchers.
Owner:龙艺燕

KVM switcher fixing device

The utility model discloses a KVM switcher fixing device which comprises a main KVM switching device, the bottom of the main KVM switching device is fixedly connected with an auxiliary KVM switching device, the surface of the main KVM switching device is connected with a fixing mechanism in a clamping mode, and the fixing mechanism comprises a fixing frame, a supporting plate, a limiting frame, a fixing block, a screw rod, a rotating block, a transmission plate, a toothed plate, a gear, a clamping rod and a clamping groove. The fixing frame is arranged on the surface of the main KVM switching device in a sleeving mode, the supporting plates are fixedly connected to the two sides of the inner wall of the fixing frame, the limiting frame is fixedly connected to the tops of the supporting plates, and the fixing block is fixedly connected to the bottom of the inner wall of the limiting frame. According to the KVM switcher fixing device, the functions of supporting and fixing the KVM switcher and conveniently taking out and installing the KVM switcher are added, so that the KVM switcher fixing device has the effects of efficiently fixing the KVM switcher and rapidly disassembling and assembling the KVM switcher, and the situation that the KVM switcher and a computer desk are usually fixed together through a bolt by a fixing device is prevented.
Owner:SHENZHEN XU FENG HIGH-TECH ELECTRONICS CO LTD

Dual-loop main-backup isolated coal mine safety monitoring system

The application discloses a double-circuit main / standby isolation type coal mine safety monitoring system, which comprises a power distribution cabinet, a monitoring main machine cabinet, a monitoring standby machine cabinet, a main monitoring operation table and a standby monitoring operation table. The monitoring main machine cabinet comprises a main server, a KVM switch, an inner network main switch, a main network gate, a main outer network switch and a WEB server. The main monitoring operation table comprises a provincial transmission main, a monitoring main machine, a ring network monitoring, a local transmission main and a central ring network main. The monitoring standby machine cabinet comprises a standby server, an inner network standby switch, a standby network gate and a standby outer network switch. The standby monitoring operation table comprises a monitoring standby machine, a central ring network standby, a local transmission standby and a provincial transmission standby. The application has the characteristics of avoiding the shutdown of the whole system and ensuring the normal operation of the system.
Owner:HUAIBEI MINING CO LTD

KVM (Keyboard Video Mouse) switcher capable of automatically controlling power-on, switching method and electronic equipment

The invention relates to the technical field of computer peripherals, and discloses a KVM switcher capable of automatically controlling power-on, a switching method and electronic equipment.The KVM switcher comprises a state detection module and a power supply control module which are in communication connection, the state detection module comprises a voltage detection circuit, and the voltage detection circuit is electrically connected with a host USB interface and used for detecting the output voltage of the host USB interface; the detected voltage signal is converted into a level signal for judging the state of the host; the state detection module sends a level signal used for judging the state of a host to the power supply control module, and the power supply control module is used for controlling the power supply state of a downlink interface according to the level signal. In the invention, the downlink USB interface is not always in a power supply state, so that the energy loss is effectively reduced. Moreover, whether the downlink USB power supply is enabled or not is determined only according to the host state, so that the compatibility problem that the equipment is not identified due to the time sequence problem is avoided, and the compatibility of the multi-computer switcher is improved.
Owner:SHANDONG CHAOYUE DATA CONTROL ELECTRONICS CO LTD

Flight training KVM monitoring integrated device

A flight training KVM monitoring integrated device disclosed by the present invention comprises a KVM switching module, an NVR module, a health reporting module, a power supply module, a display screen, a keyboard and a touchpad, external multipath HDMI and USB signals and a path of signals of the NVR module are processed and switched into a path of HDMI and USB signals through the KVM switching module, the HDMI signals are sent to the display screen for display, the USB signals are sent to the keyboard and the touchpad, and the health reporting module is connected with the power supply module. The KVM switching module converts and processes the HDMI signal and then outputs an LVDS signal format to the display screen, the KVM switching module receives an instruction input through the key instruction interface and carries out corresponding switching operation, and the NVR module receives a video stream signal of the camera in real time, analyzes the video stream signal and stores video data. A video stream signal is transmitted to the display screen through the KVM switching module, and the health reporting module performs power-on self-test and automatic detection after all the modules are started; according to the invention, a modular design is adopted, a plurality of functional modules are integrated in a 2U space, the integration level is high, and different use requirements of users are met.
Owner:SYST EQUIP CO LTD OF THE 28TH RES INST LI YANG

Ultrathin KVM (Keyboard Video Mouse) reinforced portable computer

The utility model relates to the technical field of KVM portable computers, in particular to an ultrathin KVM reinforced portable computer, which comprises a portable computer main body, the upper surface of the portable computer main body is fixedly connected with a touch panel, the upper surface of the portable computer main body is provided with a keyboard, the left side of the portable computer main body is provided with a KVM-VGA interface, the left side of the portable computer main body is provided with a KVM-PS / 2 interface, and the left side of the KVM-PS / 2 interface is provided with a keyboard. A KVM switch is arranged on the upper surface of the portable computer main body, a KVM indicator lamp is arranged on the upper surface of the portable computer main body, and a KVM module is arranged in the portable computer main body. According to the ultrathin KVM reinforced portable computer, the KVM-VGA interface, the KVM-PS / 2 interface, the KVM switch and the KVM indicator lamp are respectively arranged on the left side and the left side of the upper surface of the portable computer main body, and the KVM module is also arranged in the portable computer main body, so that the portable computer main body can carry out KVM function expansion.
Owner:BEIJING HANDE TIANQI TECH CO LTD

Chip, server board, server cabinet, display system, and display method

The present application relates to the technical field of computers and provides a chip, a server board, a server cabinet, a display system, and a display method. The chip comprises a plurality of graphics processing modules, a display interface, and a switching module. The display interface and the plurality of graphics processing modules are all connected to the switching module. Each graphics processing modules outputs, to the switching module, system screen data of a host to which the graphics processing module is connected. The switching module selects, from the plurality of graphics processing modules, a graphics processing module corresponding to a target host, and enables a transmission path between the graphics processing module corresponding to the target host and the display interface, so as to output system screen data of the graphics processing module corresponding to the target host to the display interface. The display interface outputs the system screen data received from the switching module, so as to display a system screen of the target host. A single chip is used to switch the display of different system screens without requiring an external KVM switch, and the switching logic can be implemented within the chip, thereby reducing costs and saving resources.
Owner:HUAWEI TECH CO LTD

KVM (Keyboard Video Mouse) switcher capable of quickly switching

ActiveCN223652333USelection arrangementsGear wheelKVM switch
The utility model discloses a KVM switcher capable of fast switching, which comprises a casing, a display screen is arranged on one side of the casing, an operation panel is arranged below the display screen, a fixing sheet is embedded and fixedly connected in the same side of the casing, a switching device is arranged in the center of the fixing sheet and penetrates through the center of the fixing sheet, and the switching device is connected with the display screen. A plurality of connectors are arranged on the other side of the machine shell, the tops of the connectors are connected with connectors, lifting foot pads are arranged at the four corners of the bottom of the machine shell respectively, each lifting foot pad comprises a gasket, a rotating panel is arranged at the top of each gasket, a handle is arranged and fixedly connected to one end of each rotating panel, and a handle is arranged at the other end of each rotating panel. A chassis gear is arranged in the rotating panel and is in meshed connection with the rotating panel, and a lifting screw rod is fixedly connected to the top of the chassis gear; according to the utility model, the function of quickly switching computer pictures can be realized, and different application environments can be adapted by adjusting the height.
Owner:LIAN SU SU ZHOU JING MI GONG CHENG YOU XIAN GONG SI

Reinforced KVM switcher

The utility model relates to the technical field of KVM switchers, and particularly discloses a reinforced KVM switcher, which comprises a KVM switcher body, one side of the KVM switcher body is electrically connected with a plurality of network cable interfaces, the surface of the KVM switcher body is provided with a reinforced structure, the reinforced structure comprises two fixing plates, and the two fixing plates are arranged on the surface of the KVM switcher body. The two fixing plates are fixedly connected with the two sides of the KVM switcher body respectively, rectangular pipes are fixedly connected to the surfaces of the fixing plates, two adjusting arms are slidably inserted into the inner walls of the rectangular pipes, protective covers are fixedly connected to the ends, away from the rectangular pipes, of the adjusting arms, and the sizes of the protective covers are matched with the sizes of the corners of the KVM switcher body. Two plug pins are inserted into the surface of the rectangular pipe in a sliding mode, a plurality of round holes are formed in the surface of the adjusting arm, and the sizes of the plug pins are matched with the sizes of the round holes. The KVM switcher provided by the utility model solves the problem that the KVM switcher is easy to collide with corners during use.
Owner:SUZHOU SHITAIKE ELECTRONICS TECH

High-stability KVM switcher based on FPGA architecture

The invention discloses a high-stability KVM (Keyboard Video Mouse) switcher based on an FPGA (Field Programmable Gate Array) architecture, which relates to the technical field of switchers and comprises a main control module, a display interface module, a signal switching module, an EDID (Extended Display Identifier) processing module, a power management module and a communication control module, according to the main control module, a Xilinx Zynq-7020 FPGA chip is adopted as a control core, functional module programming is achieved through a hardware description language, and IP cores with different functions are supported to be dynamically loaded. The display interface module is connected with the main control module, adopts a TI TPS65987DP controller to realize a full-link native DP1.4a interface, and comprises a dual-channel HBR3 high-speed transmission link and a self-adaptive equalizer; the signal switching module is connected with the display interface module, and adopts an Analog Devices ADG7336 switching chip to realize the switching of a plurality of paths of signals; the EDID processing module is connected with the main control module and adopts a self-developed EDID analysis engine to realize an intelligent EDID self-learning function; and the power management module is connected with the main control module, and 9-36V DC wide voltage input is realized by adopting a TI TPS5430 power chip.
Owner:SHANGHAI MINGCAI INTELLIGENT TECHNOLOGY CO LTD

Functional module scheduling display system and method among multiple terminals of DCS (Distributed Control System)

The invention belongs to the technical field of nuclear power training and nuclear power distributed control, and particularly relates to a function module scheduling display system and method among multiple terminals of a DCS (Distributed Control System). Comprising a hardware layer and a software scheduling layer. The hardware layer comprises a plurality of terminal hosts, displays, a KVM switcher, a keyboard and a mouse, the KVM switcher is respectively connected with the keyboard, the mouse and the plurality of terminal hosts, each terminal host is connected with one display, and the software scheduling layer comprises a KVM identification module, a communication module, a cross-host event routing engine and an interface agent module. The method has the advantages that the operation efficiency is improved, the real-time performance of cross-screen operation is achieved, and the nuclear power real-time interaction requirement is met based on a UDP protocol and an efficient compression algorithm. And interface response optimization: the number of single-machine picture program display is reduced, and the interface response speed is increased.
Owner:CHINA NUCLEAR POWER OPERATION TECH CORP

Vehicle-mounted turnable single-screen integrated console and use method

A vehicle-mounted, flip-up single-screen integrated control console and its usage method are described. The support frame is fixed to the base, and the LCD screen is fixed to both the base and the support frame. The base is connected to the control console via hinges. Two cover plates are fixed to the side walls of the control console. One end of each of the two connecting rods is connected to a pivot on one side wall of the base, and the other end is connected to a sliding pin located in a groove on one side wall of the control console and passing through a hole in the cover plate. Two indexing pins pass through the indexing pin holes of the two connecting rods and are inserted into the indexing pin holes II of the two cover plates and the blind indexing pin holes II of the control console, or the indexing pin holes I of the two cover plates and the blind indexing pin holes I of the control console. The control console surface is equipped with a servo handwheel, IP phone, mouse, keyboard, headphone jack, speaker, power switch, KVM switch, and dial buttons. It integrates communication command, reconnaissance, control, positioning and navigation, and display functions into a single control console, possessing strong compatibility and enabling data synchronization and sharing.
Owner:TIANJIN 764 COMM AIRMANSHIP

Signal switching device, method and kvm switch supporting multi-channel video output

PendingCN122340228ADisplay deviceEngineering
The application relates to the technical field of KVM switchers, and discloses a signal switching device, a signal switching method and a KVM switcher supporting multi-path video output. The device comprises a switching control circuit, a video signal switching circuit and a USB signal switching circuit. The video signal switching circuit is used for performing switching processing on the video signal of a target video input device according to a video switching control instruction received from the switching control circuit, and transmitting the processed video signal to a display device to display a corresponding picture. The USB signal switching circuit is used for performing switching processing on the USB signal of the target video input device according to a USB signal switching control instruction received from the switching control circuit, so as to turn on the signal channel between the target video input device and a USB signal device, and perform keyboard and mouse operation and device data transmission operation on the target video input device. The device not only supports multi-path independent video output, improves the switching processing accuracy of the video and the USB signal, but also improves the video output effect.
Owner:SHENZHEN GREEN CONNECTION TECH CO LTD

KVM Switch (K06)

1. Name of the product in this design: KVM switch (K06). 2. Purpose of this design: For multi-computer video display, sharing and switching of various USB devices such as USB mouse, keyboard, printer, and USB flash drive. 3. The key design feature of this product is its shape. 4. The picture or photo that best illustrates the key design points: Design 1 3D diagram 1. 5. Design 1 is designated as the basic design.
Owner:SHENZHEN LYUJUNENG TECH DEV CO LTD

Dual-redundancy KVM computer based on Feiteng platform and switching control method thereof

The invention relates to a dual-redundancy KVM computer based on a Feiteng platform and a switching control method of the dual-redundancy KVM computer. The dual-redundancy KVM computer comprises a mainboard module A, a mainboard module B, a management module, a KVM switching module and a power module, the management module is respectively connected with the main control module A, the main control module B and the KVM switching module, and is responsible for recording the working states of the main board module A and the main board module B, reporting fault information and sending a switching instruction to the KVM switching module; the KVM switching module is connected with the main board module A and the main board module B, and is responsible for receiving HDMI and USB signals output by the double main boards, and performing either-or switching of multiple paths of HDMI and USB signals according to a key signal or a management module instruction message; and the KVM switching module is also connected with external equipment, so that the dual-redundancy computer can provide four paths of HDMI (High Definition Multimedia Interface) display signals and six paths of USB (Universal Serial Bus) interface signals to the outside. The working efficiency of the multi-computer integrated system can be improved.
Owner:CHINA STATE SHIPBUILDING CORP NO 707 RES INST

IMP-based intelligent beam current adjustment method, device and equipment and storage medium

The present application relates to the technical field of information processing, and more particularly to an intelligent beam current adjustment method and device based on IMP, equipment and storage medium, the operation interface image of each IMP machine is obtained in real time through the KVM switch, the current beam current parameter and real-time state identifier in the operation interface image are recognized and extracted by using the OCR visual algorithm, the process requirement data of the current wafer batch number is obtained, the parameter and state data and the process requirement data are integrated, the integrated data is cleaned and normalized to obtain a preprocessed data set, the AI decision model is used to analyze the difference information between the current machine beam current state and the target process requirement based on the preprocessed data set, and the optimal beam current adjustment parameter is calculated according to the difference information, so as to improve the adjustment accuracy, adapt to complex process requirements, generate a control instruction according to the optimal beam current adjustment parameter, and IMP machine adjusts the related hardware module parameters according to the control instruction, thereby improving the intelligent level.
Owner:SHENZHEN EXX IND AUTOMATION CO LTD

KVM switch (GL-RM1)

ActiveCN309745807SData centerRemote control
1. The name of the design product: KVM switch (GL-RM1). 2. The use of the design product: KVM switch for realizing cross-platform centralized and remote control of data center. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.
Owner:SHENZHEN GUANGLIANZHITONG TECH CO LTD

KVM switch (MK301AV)

InactiveCN309232798SComputer printingEngineering
1. The name of this design product: KVM switch (MK301AV). 2. The purpose of this design product: used for multi-computer video display, sharing and switching of USB devices such as USB mouse, keyboard, printer, U disk, etc. 3. The design key point of this appearance design product lies in the shape. 4. The picture or photo that best illustrates the design points: three-dimensional picture.
Owner:SHENZHEN MAIXI TECH CO LTD

Integrated control module of display and control console for ship

The utility model discloses an integrated control module of a display and control console for a ship, belongs to the technical field of electrical control equipment, and aims at enabling an all-in-one machine and a computer on the display and control console for the ship to share a display screen, a mouse and a keyboard through a KVM switching module, enabling parts distributed on the display and control console for the ship to be more tidy, avoiding messy wiring of the display and control console for the ship, and improving the reliability of the display and control console for the ship. And the operation is convenient.
Owner:HEBEI HANGUANG HEAVY IND

Method for designing nationwide BMC (Baseboard Management Controller) based on Tenglong E2000S on 6U board card

The invention relates to a nationwide BMC design method based on Tenglong E2000S on a 6U board card, and belongs to the technical field of computers. The BMC comprises a Feiteng E2000S processor, an LPDDR4X, a display module, an active crystal oscillator, a firmware Flash, a temperature acquisition module, a voltage acquisition module, an RTC clock module, a power-on reset module, a KVM switching module, an ADC acquisition module and a power supply module. According to the invention, nationwide production is realized from the scheme, complex monitoring requirements in practical application are met, and board card operation state monitoring and stability can be effectively improved.
Owner:BEIJING INST OF COMP TECH & APPL

Disaster prevention monitoring system

Enables remote monitoring and operation of a fire alarm device without the risk of being exposed to malicious attacks. 【Solution】The fire monitoring computer 18 that has detected a fire in the building transmits the screen information signal generated in response to the fire detection by the fire receiver 14 to the monitor device 42 via the IP-KVM switch 28, the Internet 34, and the processing device 40 of the remote site 12 to display the screen information. The processing device 40 transmits the operation information signal from the mouse 46 to the fire monitoring computer 18 via the Internet 34 and the IP-KVM switch 28, enabling the operation of the fire monitoring computer 18 by the mouse 46. When the fire receiver 14 detects a fire, the fire monitoring computer 18 transmits a fire information signal to the notification device 66 via the LAN converter 60, the Internet 34, and the LAN converter 64 to issue an alarm that can identify the fire object.
Owner:HOCHIKI CORP

Information handling system display seamless KVM switch

A display KVM switch interfaces with peripheral input devices, such as keyboard and a mouse, to selectively switch inputs from the input devices to one of plural information handling systems simultaneously presenting visual images at the display. A camera monitors a viewing position of the display to detect end user gaze at a first area of the display that shows first visual images of a first information handling system and at a second area of the display that shows visual images of a second information handling system. Inputs are switched between the information handling systems when a gaze is detected at an area presented by the information handling system after a predetermined time period.
Owner:DELL PROD LP

Reinforcement learning-based kvm switch seamless switching control system and method

PendingCN122317221ANoise (video)Data pack
This invention relates to the field of KVM switching control and intelligent video transmission, specifically to a seamless switching control system and method for KVM switches based on reinforcement learning. The system includes: collecting physical layer state data of the current data link and the target data link, including cable impedance attenuation values, bit error rate before adaptive equalizer compensation, historical timing data readout time, estimated environmental signal-to-noise ratio, and terminal configuration mode; inputting the physical layer state data into a reinforcement learning decision engine based on a deep Q-network, outputting link compensation parameters and pre-loaded timing parameters; performing a virtual handshake operation based on the pre-loaded timing parameters to generate a source-end link hold state; completing the reconstruction of underlying physical layer parameters and cross-matrix switching in the vertical blank area of ​​the video stream, and updating the model reward value based on the retrained state of the switched link; this invention achieves adaptive seamless switching control for high-speed video links such as display ports.
Owner:SHANGHAI MINGCAI INTELLIGENT TECHNOLOGY CO LTD

Dual-system intelligent security and protection all-in-one machine and working method thereof

PendingCN119653046Aavoid troubleAvoid network configurationTelevision system detailsColor television detailsImage manipulationKVM switch
The invention relates to a dual-system intelligent security and protection all-in-one machine and a working method thereof, the dual-system intelligent security and protection all-in-one machine comprises an X86 system module, an NVR system module, a KVM switching module and a single-chip microcomputer module, the X86 system module is connected with the NVR system module through the Ethernet, and the X86 system module and the NVR system module are connected with an HDMI interface, a rear panel and a front panel indicating lamp through the KVM switching module. The built system is simple, redundant networking configuration is avoided, data storage and AI image processing are synchronously carried out in the server all-in-one machine depending on the CPU + NPU design, and troubles caused by network congestion are avoided. Meanwhile, the functions of encoding and decoding, video recording, alarming, audio input and output, port forwarding and the like are achieved through the NVR system module. And the high-performance file processing capability of the CPU of the X86 system module can be fully exerted, and the analyzed video is analyzed.
Owner:TIANJIN TIANDY DIGITAL TECH

Information handling system display seamless KVM switch

A display KVM switch interfaces with peripheral input devices, such as keyboard and a mouse, to selectively switch inputs from the input devices to one of plural information handling systems simultaneously presenting visual images at the display. A camera monitors a viewing position of the display to detect end user gaze at a first area of the display that shows first visual images of a first information handling system and at a second area of the display that shows visual images of a second information handling system. Inputs are switched between the information handling systems when a gaze is detected at an area presented by the information handling system after a predetermined time period.
Owner:DELL PROD LP

An 8-port HDMI ruggedized KVM switch

This application belongs to the field of human-computer interaction technology, specifically disclosing an 8-port HDMI ruggedized KVM switch. This application utilizes cascaded multi-stage high-definition conversion chips to switch one of the eight HDMI inputs directly to the HDMI output, enabling full HD HDMI digital signal switching. Signal transmission is stable with minimal loss, balanced signal, and adjustable amplitude, meeting the needs of high-definition switching scenarios. Besides directly outputting HDMI signals, an HDMI-to-VGA chip can also be used to convert the digital video signal to a VGA video signal for output, increasing application flexibility and reducing costs while improving efficiency. Multi-stage USB hub chip drivers enhance the USB signal, improving its anti-interference capability and compatibility with operating systems such as Windows, Kylin, and others, eliminating the need for host USB driver optimization and resolving cross-platform USB peripheral recognition issues. Controlling cascaded analog switches enables multi-select switching of USB signals, ensuring the reliability of USB input signal switching.
Owner:709TH RESEARCH INSTITUTE CHINA STATE SHIPBUILDING CORP LTD

An apparatus comprising a KVM switching assembly

The application discloses a device comprising a KVM switching combination structure, and particularly relates to the field of KVM switching, which comprises a fixed support plate and two groups of positioning components arranged on the surface of the fixed support plate. The positioning component comprises a setting sliding track, which is arranged on the surface of the fixed support plate. A plurality of groups of curved sliding blocks are slidably connected to the inner wall of the setting sliding track. A linkage block is fixedly connected to the two sides of each group of the curved sliding blocks. An auxiliary plug rod is inserted into one side of the linkage block. The extrusion inside the KVM switching combination frame is always kept in a clamped fixed state through the meshing of the torsional spring telescopic rod and the curved sliding block. When the torsional spring telescopic rod moves to the deepest part of the setting sliding track and the curved sliding block is meshed, the spring part on the surface of the torsional spring telescopic rod, which does not receive external pressure, restores to the original state and is meshed with the auxiliary thread. Thus, the computer is prevented from being affected by external vibration, and the connecting line between the KVM switching combination structure is always kept horizontally connected.
Owner:GUO MI LAN SHIELD (SHANDONG) INFORMATION SECURITY TECH CO LTD

Testing device for lower-layer machine of hump automatic control system

The utility model discloses a testing device for a lower-layer machine of an automatic hump control system. The testing device comprises a circuit breaker, the input end of the circuit breaker is connected with the output end of an external alternating current power supply AC; the output end of the circuit breaker is respectively connected with the display, the case, the switch, the upper-layer machine, the workstation and the power supply input end of the direct-current power supply; a video output interface of the upper computer is connected with a first video input interface of the KVM switcher; the work station is connected with a second video input interface of the KVM switcher; a video output interface of the KVM switcher is connected with a video input interface of the display; a network port of the upper-layer machine is connected with a first network port of the switch; the network port of the workstation is connected with the second network port of the switch; the communication interface of the work station is in communication connection with the board card to be tested. According to the utility model, whether the functions (the output function and the acquisition function) of each lower-layer controller included in the lower-layer machine of the TW-2 type hump automatic control system are normal can be reliably tested, and the test efficiency is ensured.
Owner:TIANJIN RAILWAY SIGNAL CO LTD