CN219066126U

CN219066126U - Touch screen control device supporting gloves with different thicknesses

Info

Publication number: CN219066126U
Application number: CN202123268007.6U
Authority: CN
Inventors: 殷勤
Original assignee: Suzhou Chipswork Electronic Technology Co ltd
Current assignee: Suzhou Chipswork Electronic Technology Co ltd
Priority date: 2021-12-23
Filing date: 2021-12-23
Publication date: 2023-05-23
Anticipated expiration: 2031-12-23

Abstract

The utility model relates to a touch screen control device supporting gloves with different thicknesses, which comprises a capacitive sensor unit and a touch control unit which are connected with each other, wherein the capacitive sensor unit comprises a capacitive sensor, the capacitive sensor comprises a cover plate and a capacitive sensor, the cover plate is arranged on the capacitive sensor in a bonding way, the touch control unit comprises a touch controller, and the touch controller is a touch control chip. The utility model adopts the capacitive sensor to collect the capacitance signal variation, the touch control can be automatically switched between the normal touch signal and the small signal when wearing gloves, the touch controller signal can be directly connected to the main board without other or auxiliary systems, the utility model has the advantages of simple structure and strong adaptability, can have high signal-to-noise ratio, and can realize operation more accurately under the condition of wearing gloves.

Description

Touch screen control device supporting gloves with different thicknesses

Technical Field

The utility model relates to the technical field related to touch screen control devices, in particular to a touch screen control device supporting gloves with different thicknesses.

Background

Along with the popularization of man-machine interaction technology, touch technology can be used in more and more fields, but environments and use scenes used in different fields are different, and more clients can put forward different touch performance requirements. If a doctor needs to wear latex gloves during glove wearing operation, an industry needs to wear thicker line labor protection gloves, cotton gloves can be worn in some outdoor use scenes in cold weather places, and more touch scenes need to be applied, so that higher requirements are put on design production of touch screens. In recent years, with the wide application of capacitive touch screens, these demands have appeared more and more commonplace, and the following are currently common ways: the software debugging improves the sensitivity, the sensitivity is increased and the signal to noise ratio is improved by using special materials, a mechanical switch is manufactured on the product to control whether the product is in a normal operation state or a glove operation state, or an operator wears special touch screen gloves with special materials to control. The above methods can realize normal production, but bring new problems, and simply improving the sensitivity may cause a messy report point when the touch under normal conditions is disturbed, so that the cost is increased by using special materials or special touch screen gloves with special materials, and the control is performed by using a mechanical switch, which is inconvenient for operators.

In view of the above-mentioned drawbacks, the present designer researches on the existing capacitive touch technology, and uses a new small signal processing technology of the touch controller to better solve the problems caused by operating the touch screen by wearing gloves, so that not only the main flow structure of the current touch screen design can be supported, but also no special requirements are made on materials, different capacitive sensor materials can be supported, free switching under the conditions of normal touch and glove touch can be realized, and cost reduction is truly realized.

Disclosure of Invention

In order to solve the technical problems, the utility model aims to provide a touch screen control device for supporting gloves with different thicknesses.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a support touch-sensitive screen controlling means of different thickness gloves, includes interconnect's capacitive sensor unit and touch control unit, and capacitive sensor unit includes capacitive sensor, and capacitive sensor includes apron and capacitive sensor, and the apron laminating sets up on capacitive sensor, and touch control unit includes touch controller, and touch controller is touch control chip.

As a further improvement of the utility model, the output end of the touch controller is connected with the host computer through the I2C communication interface.

As a further improvement of the utility model, the touch controller is provided with I2C communication pins, and the I2C communication pins are provided with pull-up resistors which ensure pull-up capability.

As a further development of the utility model, the touch control unit also comprises a communication interface which can be tested and accessed directly to the host.

As a further improvement of the utility model, the power supply system also comprises a power supply input module, wherein the power supply input module is a 3.3V direct current power supply.

By means of the scheme, the utility model has at least the following advantages:

1. the utility model adopts the capacitive sensor to collect the capacitance signal variation, the touch control can be automatically switched between the normal touch signal and the small signal when wearing gloves, the touch controller signal can be directly connected to the main board without other or auxiliary systems, the utility model has the advantages of simple structure and strong adaptability, can have high signal-to-noise ratio, and can realize operation more accurately under the condition of wearing gloves;

2. the utility model only needs a group of 3.3V power supply for external connection, which meets the power supply requirement of the main current main board interface;

3. the test communication interfaces are the same, so that the use of customers is greatly facilitated.

The foregoing description is only an overview of the present utility model, and is intended to provide a better understanding of the present utility model, as it is embodied in the following description, with reference to the preferred embodiments of the present utility model and the accompanying drawings.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a touch screen control device supporting gloves of different thickness according to the present utility model;

FIG. 2 is a side view of the capacitive sensor of FIG. 1;

FIG. 3 is a control schematic of the present utility model;

FIG. 4 is a graph comparing normal finger signals or signals when operating a touch screen with gloves.

In the drawings, the meaning of each reference numeral is as follows.

10. Capacitive sensor unit 20 touch control unit

1. Capacitive sensor 2 touch controller

3. Cover plate 4 capacitive induction sensor

Detailed Description

The following describes in further detail the embodiments of the present utility model with reference to the drawings and examples. The following examples are illustrative of the utility model and are not intended to limit the scope of the utility model.

In order to make the present utility model better understood by those skilled in the art, the following description will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by a person skilled in the art without making any inventive effort, are intended to be within the scope of the present utility model.

Examples

As shown in figures 1 to 4 of the drawings,

the utility model provides a touch-sensitive screen controlling means of support different thickness gloves, includes interconnect's capacitive sensor unit 10 and touch control unit 20, and capacitive sensor unit 10 includes capacitive sensor 1, and capacitive sensor 1 includes apron 3 and capacitive sensor 4, and apron 3 laminating sets up on capacitive sensor 4, and touch control unit 20 includes touch controller 2, and touch controller 2 is touch control chip.

Preferably, the output end of the touch controller 2 is connected with the host through an I2C communication interface.

Preferably, the touch controller 2 is provided with an I2C communication pin, and the I2C communication pins are provided with pull-up resistors for ensuring pull-up capability.

Preferably, the touch control unit 20 further includes a communication interface that can directly test and access the host computer.

Preferably, the power supply system further comprises a power supply input module, wherein the power supply input module is a 3.3V direct current power supply.

The touch screen control device supporting gloves with different thicknesses can realize the use of the gloves with different thicknesses in different scenes, and can accurately reflect information on a host according to the information read by the touch controller 2. When the capacitance sensor 1 detects the change of capacitance, the touch controller 2 can read information from time to time and directly display the processed information on the host computer, and by setting different ranges in the touch controller 2, a signal belonging to a normal touch signal or a glove-wearing operation can be detected and can be freely switched between the two signals. The utility model uses the I2C interface, can be suitable for various devices with hosts or independent systems with the I2C interface, has the advantages of simple structure, convenient control and the like, and can achieve more accurate touch control because the data is sent in time, and the detection is convenient and quick.

In order to further optimize the technical effects of the present utility model, based on the foregoing, the capacitive sensor unit 10 includes the cover plate 3 and the capacitive sensor 4, and the cover plate 3 can better protect the capacitive sensor 4 from being damaged by materials easily during testing of various materials, so that the phenomenon that the capacitive sensor cannot be used by touch is caused.

In order to make the touch controller 2 signal more stable, the power supply provided by the system is subjected to secondary filtering decoupling and other treatments, and a pull-up resistor of 3.3K ohms is added on an I2C communication pin to ensure the pull-up capability.

It will be appreciated by those skilled in the art that the structure and operation of the capacitive sensor 1 and the touch controller 2 in the present utility model are conventional in the art, and therefore, the structure and model are not limited herein.

The following describes the principle based on the present utility model, detailing the control method:

1. the host I2C communication interface is connected to the touch controller 2, and the capacitive sensing unit 10 can start to work normally;

2. the touch controller 2 receives the data acquired by the capacitive sensor unit 10, processes the data, distinguishes normal touch signals or glove operation signals, and sends the processed result to the host;

3. according to the information read by the touch controller 2, the data can be intuitively and directly displayed on the host, and the simultaneous operation of the touch screen can be seen from fig. 4, so that signals belonging to normal finger signals or signals of a glove-wearing operation can be clearly distinguished.

By the method for detecting the capacitance principle, the capacitance change quantity of the material is sensed by the capacitive sensing sensor 4, the touch controller 2 receives the data of the capacitive sensor 1, and the data is processed and then displayed on the host device, so that the customer can directly judge the capacitance change quantity conveniently.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or number of technical features being indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected: can be mechanically or electrically connected: the terms are used herein to denote any order or quantity, unless otherwise specified.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, and it should be noted that it is possible for those skilled in the art to make several improvements and modifications without departing from the technical principle of the present utility model, and these improvements and modifications should also be regarded as the protection scope of the present utility model.

Claims

1. Touch-sensitive screen controlling means of support different thickness gloves, a serial communication port, including interconnect's capacitive sensor unit (10) and touch control unit (20), capacitive sensor unit (10) are including capacitive sensor (1), capacitive sensor (1) are including apron (3) and capacitive sensor (4), apron (3) laminating sets up on capacitive sensor (4), touch control unit (20) are including touch controller (2), touch controller (2) are touch control chip.

2. A touch screen control device supporting gloves of different thickness according to claim 1, characterized in that the output end of the touch controller (2) is connected with the host computer through the I2C communication interface.

3. The touch screen control device supporting gloves with different thicknesses according to claim 1, wherein the touch controller (2) is provided with an I2C communication pin, and the I2C communication pins are provided with pull-up resistors for ensuring pull-up capability.

4. A touch screen control device supporting gloves of varying thickness according to claim 1, wherein the touch control unit (20) further comprises a communication interface for direct testing and access to a host computer.

5. The touch screen control device supporting gloves of different thicknesses as claimed in claim 1, further comprising a power input module, wherein the power input module is a 3.3V dc power supply.