Dimmable programmable touch keyboard

Abstract

The utility model provides a programmable touch keyboard capable of dimming, which can realize dimming of the programmable touch keyboard, meet the requirement of use environment in a ship cabin, and facilitate operation of a user. The programmable touch keyboard comprises an LED display screen, a dimming knob and a dimming processing circuit, the dimming knob is electrically connected with the dimming processing circuit, and the dimming knob serves as a dimming operation end and is used for sending a dimming signal to the dimming processing circuit; and the dimming processing circuit is electrically connected with a mainboard of the LED display screen and is used for sending the dimming signal to the mainboard of the LED display screen so as to realize dimming control on the LED display screen.

Description

TECHNICAL FIELD

[0001] The utility model relates to a light -adjusting keyboard, concretely is a programmable touch keyboard that can adjust light belongs to the technical field of display control equipment. BACKGROUND

[0002] The programmable touch keyboard is an input device that integrates touch control and display functions, allowing users to input commands and data by touching virtual buttons or icons on the screen. That is, the programmable touch keyboard uses touch control, and users can directly touch and select virtual buttons or slide on the screen without physical buttons; in addition to input functions, the programmable touch keyboard can also display information such as text, images, charts, etc., providing users with operation feedback and status information. This keyboard is commonly used in industrial control, automation systems, medical devices, ship control, avionics and other occasions requiring user interface.

[0003] With the rapid development of informationization, networking and integration of naval equipment in the new period, programmable touch keyboards have begun to be used in ship control systems. The operation control room of the ship needs to adapt to various complex and variable light conditions to ensure that the operator can clearly read the information on the screen and accurately operate under any conditions. Therefore, new requirements are put forward for the display performance and functions of the programmable touch keyboard.

[0004] The existing programmable touch keyboard can realize basic display and touch functions and meet basic operation requirements, but it has obvious shortcomings in the light adjustment function. Under the requirements of the cabin environment, especially in the case of strong light changes, the fixed brightness of the screen will cause visual fatigue to the operator, and even affect the accuracy and safety of the operation. INVENTION CONTENTS

[0005] In view of the shortcomings of the prior art, the utility model provides a programmable touch keyboard that can adjust light, which solves the problems mentioned in the background.

[0006] The utility model provides the following technical scheme: a programmable touch keyboard that can adjust light, comprising: an LED display screen, a light adjustment knob and a light adjustment processing circuit.

[0007] The light adjustment knob is electrically connected with the light adjustment processing circuit, and the light adjustment knob serves as a light adjustment operation end for sending a light adjustment signal to the light adjustment processing circuit.

[0008] The light adjustment processing circuit is electrically connected with the mainboard of the LED display screen for sending the light adjustment signal to the mainboard of the LED display screen to realize light adjustment control of the LED display screen.

[0009] As a preferred mode of the utility model: the light adjusting processing circuit includes: main control chip and communication interface control circuit,

[0010] The main control chip is electrically connected with the light adjusting button, and is electrically connected with the communication interface on the LED display screen through the communication interface control circuit.

[0011] The light adjusting button inputs the light adjusting signal of analog quantity.

[0012] The main control chip converts the light adjusting signal of analog quantity into the light adjusting signal of digital quantity, and further forms the message instruction for light adjusting, then sends the message instruction for light adjusting to the mainboard of the LED display screen through the communication interface control circuit.

[0013] As a preferred mode of the utility model: USB control circuit, CAN control circuit and serial port control circuit are arranged in the light adjusting processing circuit as the communication interface control circuit.

[0014] The main control chip is connected with the USB interface on the mainboard of the LED display screen through the USB control circuit.

[0015] Or is connected with the CAN interface on the mainboard of the LED display screen through the CAN control circuit.

[0016] Or is connected with the COM interface on the mainboard of the LED display screen through the serial port control circuit.

[0017] As a preferred mode of the utility model: the USB interface connected with the USB debugging interface is further arranged on the mainboard of the LED display screen, for realizing the debugging function.

[0018] As a preferred mode of the utility model: the light adjusting knob adopts the potentiometer.

[0019] Beneficial effects:

[0020] (1) in the utility model, through setting light adjusting knob and light adjusting processing circuit, the brightness of programmable touch keyboard can be adjusted quickly by rotating the light adjusting knob, the use environment requirement in the cabin of ship is satisfied, and the user operation is convenient.

[0021] (2) in the utility model, USB control circuit, CAN control circuit and serial port control circuit are arranged in the light adjusting processing circuit as the communication interface control circuit, thus the main control chip can be electrically connected with the LED display screen through the USB control circuit or the CAN control circuit or the serial port control circuit, and the universality is good and the use is convenient.

[0022] (3) The programmable touch keyboard of this utility model can be debugged through the USB debugging interface during debugging; when working normally, it can control the display of graphics, text or key information through USB communication to meet various usage needs. Attached Figure Description

[0023] Figure 1 This is a signal schematic diagram of the dimming processing circuit in this utility model;

[0024] Figure 2 This is a schematic diagram of the overall working principle of a dimmable programmable touch keyboard.

[0025] Figure 3 This is a schematic diagram of a serial port control circuit. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] To address the problem of inconvenient use caused by the inability to dim programmable touch keyboards in existing ship control systems, this embodiment provides a dimmable programmable touch keyboard that can dim the keyboard, meeting the requirements of the ship's cabin environment and facilitating user operation.

[0028] Example 1:

[0029] like Figure 1 As shown, the dimmable programmable touch keyboard includes: an LED display screen, a dimming knob, and a dimming processing circuit; wherein the dimming knob is electrically connected to the dimming processing circuit, and the dimming knob serves as a dimming operation terminal, used to send a dimming signal to the dimming processing circuit; that is, when the dimming knob is rotated, the dimming knob sends a dimming signal to the dimming processing circuit.

[0030] As an example, a VISHAY potentiometer is used for the dimming knob. It rotates electrically 270° and mechanically 300°. The dimming knob is in the form of a potentiometer, with one end connected to a power source, outputting a variable voltage value. A voltage-to-current conversion circuit converts the output voltage value into a 4–20mA current output.

[0031] like Figure 2As shown in the figure, the dimming processing circuit comprises a master control chip and a communication interface control circuit; the master control chip is electrically connected with the dimming button, and the master control chip is electrically connected with the communication interface on the LED display screen through the communication interface control circuit to realize communication with the mainboard of the LED display screen; the master control chip has the functions of collection and A / D conversion, the dimming button inputs an analog dimming signal, the dimming signal is converted into a digital dimming signal by the master control chip and is converted into a message instruction for dimming; then the message instruction for dimming is communicated with the mainboard of the LED display screen through the communication interface control circuit to realize dimming control of the LED display screen.

[0032] As an example, the master control chip adopts STM32F105.

[0033] As an example, the USB interface, the CAN interface and the COM interface (i.e. the serial communication port) are arranged on the LED display screen; based on this, the USB control circuit, the CAN control circuit and the serial port control circuit are arranged in the dimming processing circuit as the communication interface control circuit; thus the master control chip can be electrically connected with the LED display screen through the USB control circuit or be electrically connected with the LED display screen through the CAN control circuit or be electrically connected with the LED display screen through the serial port control circuit; the message instruction for dimming is sent to the mainboard of the LED display screen through the USB interface, the CAN interface or the serial port.

[0034] As an example, as shown in the figure, Figure 3 the serial port control circuit selects the MAX232 and MAX488 chips, can realize level conversion of the serial port, realize communication between the master control chip and the COM interface, and can select RS232 / RS422 / RS485 working mode.

[0035] Embodiment 2:

[0036] On the basis of the above-mentioned embodiment 1, further:

[0037] As shown in the figure, Figure 1 the programmable touch keyboard has two groups of external interfaces, the first group of external interfaces is the USB interface, the serial port, the reset interface and the power supply interface arranged on the mainboard of the LED display screen; the second group of external interfaces is the I / 0 interface for external collection.

[0038] When debugging, the programmable touch keyboard is debugged through the USB debugging interface; when normally working, the programmable touch keyboard controls the display transmission of graphic, text or key information through the USB communication mode. Specifically,

[0039] The LVDS signal cable of the output interface XP1 of the core mainboard (i.e. the mainboard of the LED display screen) is connected with the input interface of the LED display screen through the W1 cable, so as to realize the display function; the power cable of the output interface XP1 of the core mainboard is connected with the input interface of the LED display screen through the W2 cable, so as to provide voltage for the LED display screen; the external power supply of the XS1 external interface is connected with the input interface XP2 (the interface is a power interface) of the core mainboard through the W3 cable, so as to realize the external power supply for the LED display screen; the external power supply of the XS1 external interface is connected with the resistance screen main control board through the W4 cable, so as to realize the external power supply for the resistance screen; the output interface of the resistance screen main control board is connected with the input port of the five-wire resistance screen through the W5 cable, so as to realize the touch communication function; the output interface XP5 (serial port 2) of the core mainboard is connected with the input interface XP4 of the resistance screen main control board through the W6 cable, so as to realize the serial communication; the external host is connected with the core mainboard XP6 through the W7 cable, so as to realize the communication; the interface XP7 (reset interface) of the core mainboard is connected with the XS1 of the PTK external interface through the W8 cable, so as to realize the reset; one USB interface of the core mainboard is connected with the USB debugging interface through the W9 cable, so as to realize the debugging; the external I / O interface is connected with the PTK external interface through the W10 cable, and the programmable touch keyboard collects the switch value input, output and current output signal collection through the I / O interface.

[0040] Although the embodiments of the present application have been shown and described, it is to be understood that for the purpose of the present application, the embodiments can be changed, modified, replaced and varied in many ways without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A programmable touch keyboard with adjustable light, characterized in that, The application relates to an LED display screen, a dimming knob and a dimming processing circuit. The dimming knob is electrically connected with the dimming processing circuit, and the dimming knob adopts a potentiometer. The dimming knob is used as a dimming operation end and is used for sending a dimming signal to the dimming processing circuit. The dimming processing circuit is electrically connected with a mainboard of the LED display screen and is used for sending the dimming signal to the mainboard of the LED display screen to realize dimming control of the LED display screen. The dimming processing circuit comprises a main control chip and a communication interface control circuit. The main control chip is electrically connected with a dimming button and is electrically connected with a communication interface on the LED display screen through the communication interface control circuit. The dimming button inputs an analog dimming signal. The main control chip converts the analog dimming signal into a digital dimming signal and further forms a message instruction for dimming; then the message instruction for dimming is sent to the mainboard of the LED display screen through the communication interface control circuit. USB control circuit, CAN control circuit and serial port control circuit are arranged in the dimming processing circuit as the communication interface control circuit. The main control chip is connected with a USB interface on the mainboard of the LED display screen through the USB control circuit. Or the main control chip is connected with a CAN interface on the mainboard of the LED display screen through the CAN control circuit. Or the main control chip is connected with a COM interface on the mainboard of the LED display screen through the serial port control circuit. A USB interface connected with a USB debugging interface is further arranged on the mainboard of the LED display screen and is used for realizing a debugging function.

2. The dimmable programmable touch keyboard of claim 1, wherein, ​

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