CN216145143U

CN216145143U - Panel computer and instrument based on chassis panel framework

Info

Publication number: CN216145143U
Application number: CN202122055767.2U
Authority: CN
Inventors: 杨伟; 胡罗林; 张华彬; 李培林; 谢兵; 陈曦; 廖宏南; 廖翎谕
Original assignee: Chengdu Phase Lock Electronic Technology Co Ltd
Current assignee: Chengdu Phase Lock Electronic Technology Co Ltd
Priority date: 2021-08-27
Filing date: 2021-08-27
Publication date: 2022-03-29
Anticipated expiration: 2031-08-27

Abstract

The utility model provides a tablet computer and an instrument based on a chassis panel framework, wherein the tablet computer comprises a panel, a display screen, a key control panel and a mainboard; the panel comprises a function key and an adjusting knob; the key control panel comprises a processor, a level conversion circuit, a power supply conversion circuit and a key control circuit corresponding to the function key and the adjusting knob, and the key control circuit, the processor and the level conversion circuit are sequentially connected; the mainboard comprises a power supply interface, a plurality of USB interfaces, a plurality of serial interfaces, a local area network interface and a low-voltage differential signal interface, wherein the power supply interface is connected with the power conversion circuit, one of the serial interfaces is connected with the level conversion circuit, and the low-voltage differential signal interface is connected with the display screen; this scheme is integrated through the integration to instrument and meter control panel, reduces the cost to instrument and meter panel development, improves the commonality, shortens instrument and meter development cycle.

Description

Panel computer and instrument based on chassis panel framework

Technical Field

The utility model relates to the technical field of instruments and meters, in particular to a tablet personal computer and an instrument and meter based on a chassis panel framework.

Background

The key, the knob and the touch screen are functional carriers for interaction of the instrument and the user, and are matched with the processor, so that all operation instructions through the key, the knob and the touch screen can be called and used in the most direct mode. In the field of instruments and meters, manufacturers usually only singly design and manufacture keys, knobs, touch screens and processors, have no specific power supply and communication relation among the manufacturers and no uniform standard, and almost no related manufacturers integrate the keys, the knobs, the touch screens and the processors at present. Common tablet computers use a touch screen as a basic input, allowing a user to work with a stylus or a digital pen rather than a conventional keyboard or mouse, which is difficult to conform to the ergonomics of instruments. It is obvious that a tablet personal computer which integrates a key, a knob, a touch screen and a processor and can be suitable for instruments and meters is not formed in the market at present.

Aiming at the situation, the scheme provides the tablet personal computer and the instrument based on the chassis panel framework, the keys, the knobs, the touch screen, the processor and the panel framework are integrated, and meanwhile, the tablet personal computer and the instrument can be communicated and controlled with other equipment through the peripheral interface, so that the development cost of the instrument panel is reduced, the universality is improved, and the development period of the instrument is shortened.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a tablet personal computer and an instrument based on a chassis panel framework, which reduce the development cost of an instrument panel, improve the universality and shorten the development period of the instrument by integrating an instrument control panel.

The embodiment of the utility model is realized by the following technical scheme:

in a first aspect, a tablet computer based on a chassis panel architecture is provided, where the tablet computer includes a panel, a display screen, a key control board, and a motherboard;

the panel comprises a function key and an adjusting knob; the key control panel comprises a processor, a level conversion circuit, a power supply conversion circuit and a key control circuit corresponding to the function key and the adjusting knob, and the key control circuit, the processor and the level conversion circuit are sequentially connected;

the mainboard comprises a power supply interface, a plurality of USB interfaces, a plurality of serial interfaces, a local area network interface and a low-voltage differential signal interface, wherein the power supply interface is connected with the power conversion circuit, one of the serial interfaces is connected with the level conversion circuit, and the low-voltage differential signal interface is connected with the display screen.

Further, the processor is a microprocessor.

Further, the display screen is a touch screen with a driving module.

Further, the level conversion circuit comprises a chip MAX3232, wherein 1 pin of the chip MAX3232 is connected with 3 pins of the chip MAX3232 through a capacitor C16, 2 pins of the chip MAX3232 are grounded after sequentially passing through a capacitor C4 and a capacitor C14, 4 pins of the chip MAX3232 are connected with 5 pins of the chip MAX3232 through a capacitor C18, 7-10 pins of the chip MAX3232 are connected with a resistor respectively and then connected with a corresponding port of the mainboard, 11-14 pins of the chip MAX3232 are connected with a resistor respectively and then connected with a corresponding port of the microprocessor, 15 pins of the chip MAX3232 are grounded, and 16 pins of the chip MAX3232 are connected with VCC; pins 11 and 14, pins 12 and 13, pins 10 and 7, and

pins

9 and 8 of the chip MAX3232 are connected through a resistor.

Further, the power conversion circuit comprises a first power conversion module and a second power conversion module, the first power conversion module comprises an LT3480 chip, the second power conversion module comprises an LT1963 chip, and pin 1 of the LT3480 chip is connected with pin 5 and pin 8 of the LT1963 chip through a resistor.

Further, the first power conversion module is configured to convert a 12v voltage into a 5v voltage.

Further, the second power conversion module is configured to convert a 5v voltage into a 3v voltage.

In a second aspect, an instrument is provided, and the instrument includes the tablet computer.

The technical scheme of the embodiment of the utility model at least has the following advantages and beneficial effects:

this scheme carries out integration with instrument's button, knob, touch-sensitive screen, treater and panel frame, and accessible peripheral hardware interface communicates and controls with other equipment simultaneously to this cost of having reduced instrument panel development has improved the commonality, has shortened instrument development cycle.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a panel structure according to the present invention;

FIG. 3 is a circuit diagram of the level shift circuit of the present invention;

FIG. 4 is a power conversion circuit diagram of the present invention;

icon: 1-display screen, 2-panel key area.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

The existing instrument and meter often has the keys and the knobs on the control panel which are separated independently, the display screen is also an additional module, the control panel is generally not provided with a microprocessor, almost all devices are required to be assembled independently according to functions, time and labor are often consumed, however, no person is available in the market at present for integration of the instrument and meter control panel, so that the existing instrument and meter control panel has the disadvantages of higher development cost, weaker universality and longer development period. In view of the above problems, the present invention is intended to solve this problem by integrally integrating the keys, knobs, touch screen, processor, and panel frame.

Based on this, we provide a tablet computer based on a chassis panel architecture, as shown in fig. 1 and fig. 2, the tablet computer includes a panel, a display screen, a key control board and a motherboard;

Wherein the processor adopts a microprocessor; the display screen is a touch screen with a driving module. It will be appreciated that this arrangement enables the integrated integration of the instrument keys, knobs, touch screen, processor and panel frame. Meanwhile, various interfaces are integrated on the mainboard, and the debugging of key functions and the like is realized through the interfaces aiming at different instrument scenes, so that the better universality is achieved, the development time of an instrument control panel is saved, and the development period is shortened. Of course, in order to realize integration, related circuits and chips are not needed, and the circuits and the related chips used in the following scheme will be introduced.

As shown in fig. 3, the chip used by the level shift circuit is MAX 3232. Specifically, 1 pin of the chip MAX3232 is connected with 3 pins of the chip MAX3232 through a capacitor C16, 2 pins of the chip MAX3232 are grounded after sequentially passing through a capacitor C4 and a capacitor C14, 4 pins of the chip MAX3232 are connected with 5 pins of the chip MAX3232 through a capacitor C18, 7-10 pins of the chip MAX3232 are connected with a corresponding port of the mainboard after being connected with a resistor respectively, 11-14 pins of the chip MAX3232 are connected with a corresponding port of the microprocessor after being connected with a resistor respectively, 15 pins of the chip MAX3232 are grounded, and 16 pins of the chip MAX3232 are connected with VCC; pins 11 and 14, pins 12 and 13, pins 10 and 7, and pins 9 and 8 of the chip MAX3232 are connected through a resistor.

As shown in fig. 4, the power conversion circuit includes a first power conversion module and a second power conversion module, the first power conversion module includes an LT3480 chip, the input voltage range of the switching regulator chip is 3.6V-36V, and the output voltage range is: 0.79V-20V; the switching frequency range is 200kHz-2.4 MHz; here it is used to convert an input voltage of 12V to an output voltage of 5V.

The second power supply conversion module comprises an LT1963 chip, and the low dropout regulator chip has better rapid transient response performance and lower output noise, and meets the use requirement of the scheme; the adjustable output range of the voltage regulator can output fixed voltages of 1.5V, 1.8V, 2.5V and 3.3V and is 1.21V-20V; in this scheme, it is used to convert an input voltage of 5V to a stable output voltage of 3.3V.

It should be noted that pin 1 of the LT3480 chip is connected to pins 5 and 8 of the LT1963 chip via a resistor.

Based on the above, the scheme also provides an instrument, and the instrument uses the tablet personal computer.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A tablet computer based on a chassis panel framework is characterized by comprising a panel, a display screen, a key control panel and a mainboard;

2. The chassis panel architecture-based tablet according to claim 1, wherein the processor employs a microprocessor.

3. The chassis panel architecture based tablet according to claim 1, wherein the display screen is a touch screen with a driving module.

4. The tablet computer based on the chassis panel architecture of claim 1, wherein the level shift circuit comprises a chip MAX3232, wherein 1 pin of the chip MAX3232 is connected to 3 pins of the chip MAX3232 through a capacitor C16, 2 pins of the chip MAX3232 are grounded through a capacitor C4 and a capacitor C14 in sequence, 4 pins of the chip MAX3232 are connected to 5 pins of the chip MAX3232 through a capacitor C18, 7-10 pins of the chip MAX3232 are connected to a resistor respectively and then connected to corresponding ports of the motherboard, 11-14 pins of the chip MAX3232 are connected to a resistor respectively and then connected to corresponding ports of the processor, 15 pins of the chip MAX3232 are grounded, and 16 pins of the chip MAX3232 are connected to VCC; pins 11 and 14, pins 12 and 13, pins 10 and 7, and pins 9 and 8 of the chip MAX3232 are connected through a resistor.

5. The tablet computer based on the chassis panel architecture of claim 1, wherein the power conversion circuit comprises a first power conversion module and a second power conversion module, the first power conversion module comprises an LT3480 chip, the second power conversion module comprises an LT1963 chip, and pin 1 of the LT3480 chip is connected to pin 5 and pin 8 of the LT1963 chip through a resistor.

6. The tablet computer based on the chassis panel architecture of claim 5, wherein the first power conversion module is configured to convert 12v voltage into 5v voltage.

7. The tablet computer based on the chassis panel architecture of claim 5, wherein the second power conversion module is configured to convert a 5v voltage into a 3v voltage.

8. An instrument comprising the tablet of claims 1-7.