TWI550460B - Underwater touch detection system and method - Google Patents

Description

Underwater touch detection system and underwater touch detection method

The invention relates to an underwater touch detection system and an underwater touch detection method.

At present, touch functions have been widely applied to many electronic devices, such as mobile phones and tablets. Touch technology has capacitive, resistive, optical, etc., and capacitive touch technology has the advantages of durability and low cost, and has gradually become the preferred technology for touch. However, although many touch electronic devices are currently equipped with waterproof functions, the touch electronic devices are still affected by water under water and affect the implementation of the touch function.

In view of this, it is necessary to provide an underwater touch detection system. The underwater touch detection system is applied to a touch device. The touch device includes a touch surface. The system includes a water quality detection module, a background value acquisition module, a determination module, and an execution module. The water quality detecting module is configured to detect a state of water quality of the touch surface. The background value obtaining module is configured to acquire a current background value of the touch panel according to the state of the detected water quality, where the background value includes a reference value when the touch surface is touched by a non-touch object. The determining module is configured to compare the touch sample value on the current touch surface with the acquired background value, and determine that the touch surface has a touch when the touch sample value deviates from the background value by a predetermined range operating. The execution module is configured to perform a corresponding touch operation when it is determined that there is a touch operation on the touch surface.

It is also necessary to provide an underwater touch detection method. The underwater touch detection method should Used in touch devices. The touch device includes a touch surface. The method includes: detecting a state of the water quality in which the touch surface is located; acquiring a current background value of the touch panel according to the state of the detected water quality, where the background value includes touching the touch surface without touching the object a reference value of the time; comparing the touch sample value on the current touch surface with the acquired background value, and determining that there is a touch operation on the touch surface when the touch sample value deviates from the background value by a predetermined range; And performing a corresponding touch operation when it is determined that there is a touch operation on the touch surface.

Compared with the prior art, the underwater touch detection system and the underwater touch detection method provided by the present invention can help the touch device avoid the interference of water on the capacitive touch screen under water, and realize the underwater touch function.

1‧‧‧ touch device

10‧‧‧Underwater Touch Detection System

11‧‧‧ memory

12‧‧‧ Processor

13‧‧‧Environmental detection unit

14‧‧‧Water quality testing unit

15‧‧‧Touch panel

16‧‧‧Display

101‧‧‧Environment Detection Module

102‧‧‧Water quality testing module

103‧‧‧Background value acquisition module

104‧‧‧Judgement module

105‧‧‧Execution module

151‧‧‧ Touch surface

FIG. 1 is a schematic diagram of a touch device according to an embodiment of the present invention.

2 is an architectural diagram of an operating environment of the underwater touch detection system of the present invention.

3 is a flow chart of the underwater touch detection method of the present invention.

The embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

Please refer to FIG. 1 , which is a schematic diagram of a touch device 1 according to an embodiment of the present invention. The touch device 1 includes a touch surface 151.

Please refer to FIG. 2 , which is a structural diagram of an operating environment of the underwater touch detection system 10 of the present invention. The underwater touch detection system 10 is applied to the touch device 1 . Preferably, the touch device 1 is a touch device capable of being waterproof, such as a touch device having a waterproof coating surface. The touch device 1 further includes a memory 11 , a processor 12 , an environment detecting unit 13 , a water quality detecting unit 14 , and a touch panel 15 . In an embodiment, the The touch device 1 can also include a display screen 16.

The touch device 1 can be, but is not limited to, an electronic device with a touch function such as a mobile phone, a camera, a portable media player, a tablet computer, and a personal computer. The environment detecting unit 13 is, for example, a humidity sensor disposed around the touch panel 15 . When the environment detecting unit 13 detects that the humidity is greater than a preset value, it is determined that the touch surface 151 is covered by water. The water quality detecting unit 14 is, for example, a micro water quality detector embedded in the touch device 1 , wherein the detecting head of the micro water quality detector is exposed outside the housing of the touch device 1 when the environment detecting unit 13 When the detected humidity is greater than a preset value, the environment detecting unit 13 sends a signal to the processor 12, and the processor 12 generates a control signal to enable the water quality detecting unit 14 to be turned on, and the detecting head of the miniature water quality detector detects Peripheral liquid and detecting the composition of the liquid. In one embodiment, the touch device 1 is a mobile phone, and the water quality detecting unit 14 is located beside the earpiece of the mobile phone and embedded in the touch device 1 .

The underwater touch detection system 10 is applied to the touch device 1 . The underwater touch detection system 10 includes an environment detection module 101, a water quality detection module 102, a background value acquisition module 103, a determination module 104, and an execution module 105. The functional modules in the underwater touch detection system 10 can be stored in the memory 11 and controlled by the processor 12.

The environment detecting module 101 presets a preset value indicating that the touch device 1 is in the water. The environment detecting module 101 controls the environment detecting unit 13 to detect the humidity information of the touch surface 151, and determines whether the touch surface 151 is covered by water according to the relationship between the humidity information and the preset value.

The water quality monitoring module 102 is configured to analyze and detect the state of the water quality. The state of the water quality includes, but is not limited to, a group of water pH, pressure, flow strength and temperature. Hehe.

The background value obtaining module 103 acquires the current background value of the touch panel 15 according to the state of the detected water quality.

The background value is data obtained by a certain algorithm according to the current actual sample value when the touch object is not touched on the touch surface 151, and is a reference value for calculating whether or not the touch occurs. If the current sample value deviates from the background value to a certain extent, the touch panel 15 considers that the object is touched, such as a finger has been placed. Background values are not static and need to be updated based on changes in the environment of the system. The update of the background value is related to the judgment of the touch panel 15 on the occurrence of the touch, which is the most important basis for calculating the touch coordinates. If the background value is updated incorrectly, it will cause various problems such as the touch always occurs and the touch has not occurred. Therefore, the present invention detects the water quality when the touch surface 151 is covered by water, and calculates the current background value by the detected water quality, so that the calculated background value can be used as a reference to correctly judge the touch surface. The position of the touch coordinates on 151.

The determining module 104 is configured to compare the touch sample value on the current touch surface 151 with the acquired background value, and determine the touch when the touch sample value deviates from the background value by a predetermined range. There is a touch operation on the surface 151. The touch sample value may be acquired by the touch panel 15 .

The execution module 105 is configured to perform a corresponding touch operation when it is determined that there is a touch operation on the touch surface 151.

Please refer to FIG. 3 , which is a flowchart of implementing the underwater touch detection method of the present invention by using the underwater touch detection system 10 . It should be noted that the underwater touch detection method of the present invention is not limited to the sequence of the following steps, and in other embodiments, the underwater touch detection method of the present invention may include only the following Part of the step, or Some of these steps can be removed. The functions of the above modules are described in detail below in conjunction with the description of the various process steps in FIG.

In step S201, the environment detecting module 101 detects whether the touch surface 151 is covered by water. Specifically, the environment detecting module 101 controls the environment detecting unit 13 to detect the humidity information of the touch surface 151, and determines whether the touch surface 151 is used according to the relationship between the humidity information and the preset value. Water covered.

In step S202, when the touch surface 151 is covered by water, the water quality detecting module 102 detects the state of the water quality. Specifically, the water quality detecting module 102 controls the water quality detecting unit 14 to detect the state of the water quality covering the touch surface 151. The state of the water quality includes, but is not limited to, water pH, pressure, flow strength, temperature, and the like.

In step S203, the background value obtaining module 103 acquires the current background value of the touch panel 15 according to the state of the detected water quality. The background value is a reference value when the touch surface 151 is not touched by an object. In the present embodiment, the memory 11 can store a combination of pH, pressure, flow strength, and temperature of a plurality of waters, each of which corresponds to a background value. The background value obtaining module 103 matches the state of the detected water quality with the plurality of combinations to obtain a background value corresponding to the detected water quality state. In another embodiment, a calculation program may be saved in the memory 11, and the background value acquisition module 103 brings parameters such as pH, pressure, flow intensity, and temperature of the water quality into the calculation program. Obtain the background value corresponding to the detected water quality status.

Step S204, the determining module 104 compares the touch sample value on the current touch surface 151 with the acquired background value, and determines the touch surface when the touch sample value deviates from the background value by a predetermined range. There is a touch operation on 151. Among them, when The touch sample value on the front touch surface 151 is acquired by the touch panel 15.

In step S205, the execution module 105 performs a corresponding touch operation when it is determined that there is a touch operation on the touch surface 151.

The present invention detects the state of the water quality covering the touch surface 151, and obtains the current background value of the touch panel according to the state of the water quality, so that even if the touch device 1 is underwater, the touch can be accurately determined. Whether there is a touch operation on the touch surface 151 of the control panel 15.

In summary, the creation meets the requirements of the invention patent, and the patent application is filed according to law. However, the above description is only a preferred embodiment of the present invention, and the scope of the present invention is not limited to the above embodiments, and those skilled in the art will be equivalently modified according to the spirit of the present invention.

Or variations, should be covered by the following patent application.

1‧‧‧ touch device

10‧‧‧Underwater Touch Detection System

11‧‧‧ memory

12‧‧‧ Processor

13‧‧‧Environmental detection unit

14‧‧‧Water quality testing unit

15‧‧‧Touch panel

16‧‧‧Display

101‧‧‧Environment Detection Module

102‧‧‧Water quality testing module

103‧‧‧Background value acquisition module

104‧‧‧Judgement module

151‧‧‧ Touch surface

Claims (10)

An underwater touch detection system is applied to a touch device, the touch device includes a touch surface, and the system includes: a water quality detecting module, configured to detect a state of water quality of the touch surface; and obtaining a background value a module, configured to acquire a current background value of the touch panel according to the state of the detected water quality, where the background value includes a reference value when the touch surface is touched by a non-touch object; Comparing the touch sample value on the current touch surface with the acquired background value, determining that there is a touch operation on the touch surface when the touch sample value deviates from the background value by a predetermined range; and executing the module And for performing a corresponding touch operation when it is determined that there is a touch operation on the touch surface. The underwater touch detection system of claim 1, wherein the underwater touch detection system further includes: an environment detection module, configured to detect whether the touch surface is covered by water, The water quality detecting module detects the state of the water quality when the touch surface is covered by water. The underwater touch detection system of claim 2, wherein the environment detection module presets a preset value indicating that the touch device is in a liquid environment, and the touch device further includes an environmental detection The environment detecting module controls the environment detecting unit to detect the humidity information of the touch surface, and determines whether the touch surface is covered by water according to the relationship between the humidity information and a preset value. The underwater touch detection system of claim 1, wherein the state of the water quality comprises a combination of water pH, pressure, flow intensity, and temperature. The underwater touch detection system of claim 4, wherein the underwater touch detection system stores a combination of pH, pressure, flow intensity and temperature of each of the plurality of waters, each combination corresponding to a background And the background value obtaining module matches the state of the detected water quality with the plurality of combinations to obtain a background value corresponding to the detected water quality state. An underwater touch detection method is applied to a touch device, the touch device includes a touch surface, and the method includes: detecting a state of water quality of the touch surface; obtaining according to the state of the detected water quality The current background value of the touch panel, the background value includes a reference value when the touch surface is not touched by the touch object; comparing the touch sample value on the current touch surface with the acquired background value, Determining that there is a touch operation on the touch surface when the touch sample value deviates from the background value by a predetermined range; and performing a corresponding touch operation when it is determined that there is a touch operation on the touch surface. The underwater touch detection method of claim 6, wherein the underwater touch detection method further comprises: detecting whether the touch surface is covered by water, when the touch surface is covered by water, The state of the water quality is detected. The underwater touch detection method of claim 7, wherein the touch device presets a preset value indicating that the touch device is in a liquid environment, and the touch device further includes an environment detecting unit The method further includes: controlling the environment detecting unit to detect a humidity message of the touch surface, and determining whether the touch surface is covered by water according to the relationship between the humidity information and a preset value. The underwater touch detection method of claim 6, wherein the state of the water quality comprises a combination of water pH, pressure, flow intensity, and temperature. The underwater touch detection method of claim 9, wherein the touch device stores a plurality of a combination of pH, pressure, flow intensity and temperature of the water, each combination corresponding to a background value, the underwater touch detection method further comprising: matching the state of the detected water quality with the plurality of combinations The background value corresponding to the detected water quality status.