CN220730771U - Signal synchronous switching device of keyboard display - Google Patents
Signal synchronous switching device of keyboard display Download PDFInfo
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- CN220730771U CN220730771U CN202322494281.8U CN202322494281U CN220730771U CN 220730771 U CN220730771 U CN 220730771U CN 202322494281 U CN202322494281 U CN 202322494281U CN 220730771 U CN220730771 U CN 220730771U
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Abstract
The utility model provides a signal synchronous switching device of a keyboard display, which comprises a display and a keyboard, wherein the display is provided with a controller, a first Bluetooth and keys, the controller is connected with a first interface and a second interface of the display, input signals of the first interface or the second interface are selected through the keys, the controller is connected with a second Bluetooth of the keyboard through the first Bluetooth and is in data communication with the keyboard through the Bluetooth, a control panel of the keyboard is connected with a first host through the second Bluetooth and is connected with the first Bluetooth at the same time, and the control panel is connected with a second host through a 2.4g wireless wifi module. According to the utility model, the keyboard and the display are synchronously switched to the corresponding host for connection according to the selection of the keys, so that the keyboard and the display are bound, the switching operation of the keyboard/the display is not needed after the signal switching of the display/the keyboard, the misoperation of the misoperation input is reduced, and the utilization efficiency of users to different hosts is facilitated.
Description
Technical Field
The present utility model relates to a computer device, and more particularly, to a signal synchronization switching device for a keyboard display.
Background
At present, a person usually occupies a station, and when working, the person can process mess on the same computer host according to different sources of information, such as personal transactions and unit transactions, but two different computers are needed for the situation, if the person is a notebook, the person can put down the station, but sometimes the person is two desktops, two sets of computers are needed, each set of computers is provided with the computer host, a display, a keyboard and a mouse, and the mouse and the keyboard can adopt wireless devices at present, so that the use of wires is reduced, and the use of the display and the host is not needed.
The existing display usually has two different input ports, such as VGA, HDMI and DVI, and DP, but the display now also has control switching functions for different interfaces, and by pressing the keys of the display, the selection of the corresponding connection port can be realized, and then the signals of the port can be input, so that two displays can use the same display, and for a mouse, the occupied area of the wireless mouse can be reduced, and the keyboard cannot be realized. Therefore, how to use the same keyboard and the same display, and synchronize the switching signals is a matter of consideration.
For the above problems, the most typical application of the present multi-video source switching device is a multi-computer switch (Keyboard Video Mouse, KVM) which can access and control computers by directly connecting to the keyboard video and mouse ports. One signal is selected from the multiple signals to be sent out, and the selected signal can be controlled by using a set of keyboard and mouse, namely, a display and a set of mouse keyboard can control a plurality of computers in a time-sharing way.
For example, patent No. 202010234738.X provides a multi-host and display control switching system, and patent No. 202220568098.0 provides a desktop control device for multi-video source switching, but current KVM mainly switches signals by controlling keys on the KVM, and the existing KVM has a complex internal structure, occupies a space, is not suitable for using a wireless device, and is not suitable for using KVM on a personal office desk.
At present, when an operation keyboard supporting 2-3 hosts, such as a Luo Ji (Logitech) K580 keyboard, a K380 keyboard and the like, is used, the keyboard operation is successful, if two or three hosts use the same display, the display needs to be operated again, thus causing inconvenience in use, especially only switching signals of a screen, when a mouse of the host where the corresponding signal is located is used, the keyboard is forgotten to be switched, and another host which is actually aimed is input from the keyboard, and misoperation is caused, so that a device for synchronously switching the keyboard and the display is needed.
Disclosure of Invention
The utility model provides a signal synchronous switching device of a keyboard display, which solves the problem that the keyboard and the display cannot correspond to the same host computer by switching signals on the display when the signals on the keyboard side are switched, and the technical scheme is as follows:
the utility model provides a signal synchronization auto-change over device of keyboard display, includes display and keyboard, the display is provided with controller, first bluetooth and button, the controller is connected with the first interface and the second interface of display, selects the incoming signal of first interface or second interface through the button, the controller is connected with the second bluetooth of keyboard through first bluetooth, carries out data communication with the keyboard through bluetooth, the control panel of keyboard is connected with first host computer through the second bluetooth, is connected with first bluetooth simultaneously, is connected with the second host computer through 2.4g wireless wifi module.
The number of the keys is two, and the first key selects an input signal of the first interface and is connected with the first host; the second key selects the input signal of the second interface and is connected with the second host.
The first interface and the second interface adopt two of VGA, DP, HDMI and DVI.
The controller is also connected with a first indicator lamp and a second indicator lamp, and the controller is respectively provided with a double-color display lamp for displaying the signal input states of the first interface and the second interface, and the corresponding interface is used in blue, the corresponding interface is waiting in red, and no signal input is caused in the corresponding interface.
The controller is ARM, and the model is STM32.
The controller, the first Bluetooth and the keys can be integrated in the display, the controller and the display chip share the same chip, and the keys adopt functional keys of the display.
The control panel switches the second Bluetooth and the 2.4g wireless wifi module through keys of the keyboard, and the switched signals are sent to the first Bluetooth connected with the controller through the second Bluetooth.
The key of the keyboard is provided with an indicator lamp, the indicator lamp is respectively used for displaying the signal input states of the first host and the second host, the corresponding interface is indicated to be used when blue is adopted, the corresponding interface is indicated to be waiting when red is adopted, and no signal input is indicated to the corresponding interface when red is not illuminated.
According to the signal synchronous switching device of the keyboard display, the keyboard and the display are synchronously switched to the corresponding host for connection according to the selection of keys, so that the keyboard and the display are bound, the switching operation of the keyboard/display is not needed after the signals of the display/keyboard are switched, the misoperation of the misoperation input is reduced, and the utilization efficiency of users to different hosts is facilitated.
Drawings
Fig. 1 is a schematic diagram of an application scenario of the signal synchronization switching device of the keyboard display;
fig. 2 is a circuit schematic diagram of the signal synchronization switching device of the keyboard display.
Detailed Description
As shown in fig. 1, the signal synchronous switching device of a keyboard display is mainly applied to the situation that two hosts use the same display, and meanwhile, a keyboard and a mouse are both wireless, in this embodiment, a display 1, a first host 2 and a second host 3 are provided, the display 1 is provided with at least two groups of different interfaces, such as VGA, DP, HDMI and DVI, and display outputs of the first host 2 and the second host 3 are both connected with the display 1 and are connected with different interfaces.
The wireless keyboard 6 is used for the input of the first host 2 and the second host 3, and the wireless keyboard 6 comprises two wireless connection modes of Bluetooth and 2.4g wireless wifi modules, wherein Bluetooth is set to be connected with the first host 2, and 2.4g wireless wifi modules are set to be connected with the second host 3. Further, the first host 2 is further connected with a first mouse 4, the second host 3 is further connected with a second mouse 5, and the first mouse 4 and the second mouse 5 adopt a wireless or wired mode.
As shown in fig. 2, the signal synchronous switching device of the keyboard display includes a controller 15, a first bluetooth 16 and a key 17, wherein the controller 15 is connected with the first interface 11 and the second interface 12 of the display, the input signal of the first interface 11 or the second interface 12 is selected through the key 17, and the controller 15 is connected with the second bluetooth 8 of the keyboard through the first bluetooth 16 and performs data communication with the keyboard through the bluetooth.
The number of the keys 17 is two, the first key selects the input signal of the first interface 11, the first interface 11 is set to be connected with the first host by adopting a VGA interface, and then the display displays the data of the first host; the second key selects the input signal of the second interface 12, and the second interface 12 is set to be connected with the second host by adopting the HDMI interface, so that the display displays the data of the second host.
The controller 15 is further connected to the display chip 10 of the display, and when no signal is input to the first interface 11 and/or the second interface 12, the controller 15 obtains signal input information of the first interface 11 and the second interface 12 through the display chip 10. The controller 15 is further connected with a first indicator light 13 and a second indicator light 14, the first indicator light 13 and the second indicator light 14 are respectively two-color display lights, and are respectively used for displaying signal input states of the first interface 11 and the second interface 12, when blue is adopted, the corresponding interface is indicated to be in use, when red is adopted, the corresponding interface is indicated to be waiting, and if no signal is input to the corresponding interface.
The controller 15 is ARM, the model adopted is STM32, and STM32 series are based on ARM Cortex-M3 cores specially designed for embedded applications requiring high performance, low cost and low power consumption. The properties are divided into two different families: STM32F103 "enhanced" series and STM32F101 "basic" series. The frequency of the enhanced serial clocks reaches 72MHz, and the enhanced serial clocks are the products with the highest performance in the similar products; the basic clock frequency is 36MHz, the performance greatly improved than the 16-bit product is obtained by the price of the 16-bit product, and the basic clock frequency is the best choice for 16-bit product users. Both families have 32K to 128K flash memories built in, except for the combination of SRAM maximum capacity and peripheral interfaces. At a clock frequency of 72MHz, the code is executed from the flash memory, STM32 consumes 36mA, which is the lowest-power-consumption product in the 32-bit market, and is equivalent to 0.5mA/MHz. Cortex should have the advantage of a combination of low power consumption, low cost, high performance 3 (or 2).
Further, the controller 15, the first bluetooth 16 and the key 17 may be integrated in the display, the controller 15 and the display chip may share the same chip, and the key 17 may be a function key of the display.
The control panel 7 of keyboard is connected with first host computer through second bluetooth 8, is connected with first bluetooth 16 simultaneously, is connected with the second host computer through wireless wifi module 9 of 2.4 g. The control board 7 can also switch the second Bluetooth 8 and the wireless wifi module 9 of 2.4g through the keys of the keyboard, and the switched signals are sent to the controller 15 through Bluetooth, so that the corresponding interfaces are selected. Further, the keys of the keyboard are provided with indicator lamps for indicating the current signal selection, the indicator lamps are also two-color display lamps and are respectively used for displaying the signal input states of the first host and the second host, the corresponding interfaces are indicated to be used when blue is adopted, the corresponding interfaces are indicated to be waiting when red is adopted, and if the corresponding interfaces are not indicated to be not input by the signals.
When the display is used, if the first host and the second host are both in the starting state, the keys 17 connected with the controller 15 or the keys of the operation keyboard can play a role of switching the input interface of the display. The switching signal is sent to the display or the keyboard without pressing the key through Bluetooth, and the corresponding host is selected, so that the consistency of the keyboard input and the display signal output of the same host is realized, and the synchronous switching of the keyboard and the display is realized.
If the first host is dormant or powered off, the key 17 connected to the controller 15 is pressed, or the key of the first host is selected by the keyboard, the controller 15 acquires the information that the first host has no input signal from the display chip 10, then the input signal of the second host is continuously displayed, and the first indicator lamp 13 is not on at this time, and can also give an indication to the user. The second host is dormant or powered off in the same way.
If no signal is input to both hosts, the display displays a black screen, any key is pressed, no signal input is displayed on the display, and the first indicator lamp 13 and the first indicator lamp 14 are not on at this time, so that an indication can be given to a user.
Therefore, a user can judge what state the host computer is by observing the indicator lamp, and further the host computer is operated or the mouse is operated, so that better user experience is realized.
According to the signal synchronous switching device of the keyboard display, the keyboard and the display are synchronously switched to the corresponding host for connection according to the selection of keys, so that the keyboard and the display are bound, the switching operation of the keyboard/display is not needed after the signals of the display/keyboard are switched, the misoperation of the misoperation input is reduced, and the utilization efficiency of users to different hosts is facilitated.
Claims (8)
1. A signal synchronous switching device of a keyboard display is characterized in that: the display is provided with a controller, a first Bluetooth and keys, the controller is connected with a first interface and a second interface of the display, input signals of the first interface or the second interface are selected through the keys, the controller is connected with a second Bluetooth of the keyboard through the first Bluetooth, data communication is conducted with the keyboard through the Bluetooth, a control panel of the keyboard is connected with a first host through the second Bluetooth, and meanwhile the control panel is connected with the first Bluetooth, and is connected with a second host through a 2.4g wireless wifi module.
2. The signal synchronization switching apparatus of a keyboard monitor according to claim 1, wherein: the number of the keys is two, and the first key selects an input signal of the first interface and is connected with the first host; the second key selects the input signal of the second interface and is connected with the second host.
3. The signal synchronization switching apparatus of a keyboard monitor according to claim 1, wherein: the first interface and the second interface adopt two of VGA, DP, HDMI and DVI.
4. The signal synchronization switching apparatus of a keyboard monitor according to claim 1, wherein: the controller is also connected with a first indicator lamp and a second indicator lamp, and the controller is respectively provided with a double-color display lamp for displaying the signal input states of the first interface and the second interface, and the corresponding interface is used in blue, the corresponding interface is waiting in red, and no signal input is caused in the corresponding interface.
5. The signal synchronization switching apparatus of a keyboard monitor according to claim 1, wherein: the controller is ARM, and the model is STM32.
6. The signal synchronization switching apparatus of a keyboard monitor according to claim 1, wherein: the controller, the first Bluetooth and the keys can be integrated in the display, the controller and the display chip share the same chip, and the keys adopt functional keys of the display.
7. The signal synchronization switching apparatus of a keyboard monitor according to claim 1, wherein: the control panel switches the second Bluetooth and the 2.4g wireless wifi module through keys of the keyboard, and the switched signals are sent to the first Bluetooth connected with the controller through the second Bluetooth.
8. The signal synchronization switching apparatus of a keyboard monitor according to claim 1, wherein: the key of the keyboard is provided with an indicator lamp, the indicator lamp is respectively used for displaying the signal input states of the first host and the second host, the corresponding interface is indicated to be used when blue is adopted, the corresponding interface is indicated to be waiting when red is adopted, and no signal input is indicated to the corresponding interface when red is not illuminated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322494281.8U CN220730771U (en) | 2023-09-14 | 2023-09-14 | Signal synchronous switching device of keyboard display |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322494281.8U CN220730771U (en) | 2023-09-14 | 2023-09-14 | Signal synchronous switching device of keyboard display |
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| CN220730771U true CN220730771U (en) | 2024-04-05 |
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| CN202322494281.8U Active CN220730771U (en) | 2023-09-14 | 2023-09-14 | Signal synchronous switching device of keyboard display |
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