WO2017214789A1 - Système, module et procédé de détection de pression - Google Patents

Système, module et procédé de détection de pression Download PDF

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Publication number
WO2017214789A1
WO2017214789A1 PCT/CN2016/085524 CN2016085524W WO2017214789A1 WO 2017214789 A1 WO2017214789 A1 WO 2017214789A1 CN 2016085524 W CN2016085524 W CN 2016085524W WO 2017214789 A1 WO2017214789 A1 WO 2017214789A1
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Prior art keywords
pressure detecting
pressure
sampling
node
touch
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PCT/CN2016/085524
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English (en)
Chinese (zh)
Inventor
万鹏
李华飞
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深圳市汇顶科技股份有限公司
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Priority to CN201680000580.1A priority Critical patent/CN107850496B/zh
Priority to PCT/CN2016/085524 priority patent/WO2017214789A1/fr
Publication of WO2017214789A1 publication Critical patent/WO2017214789A1/fr

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L1/00—Measuring force or stress, in general
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements

Definitions

  • the present application relates to the field of pressure detection technology, and in particular, to a detection system, a module and a method for improving a signal to noise ratio of a pressure detection.
  • the pressure detecting chip is composed of a pressure detecting system 1 and a pressure detecting sensor 2, and the pressure detecting sensor 2 has N pressure detecting channels, and N is a natural number (C0, C1, ..., CN). Each pressure sensing channel is responsible for a small area of the entire pressure pending plane.
  • the pressure detecting system 1 includes a switch switching module 11 , a sampling module 12 , an analog-to-digital conversion module 13 , and a digital control and processing module 14 .
  • the switch switching module 11 collects pressure signals of the pressure detecting channels through an analog switch, and the sampling module 12 The acquired pressure signal is sampled, the sampled signal is converted to a digital signal by digital to analog conversion module 13 and sent to digital control and processing module 14, which calculates the data as a pressure value.
  • each node corresponds to an associated pressure detecting area, that is, node 0, node 1, node 2, ..., node 8, (C0, C1, ..., CN).
  • the nine nodes correspond to nine pressure detecting channels of the pressure detecting sensor 2.
  • Timing of Scanning One Frame of Data The color-dependent dark blocks in Figure 3 represent the pressure detection channels being sampled at the current time.
  • the light-colored blocks in Figure 3 represent the pressure detection channels that are idle at the current time. Since the signal-to-noise ratio is an important indicator of the pressure detection chip, if the signal-to-noise ratio of the pressure detection is to be improved, the timing of scanning one frame of data is shown in FIG. It can be seen that in order to improve the signal-to-noise ratio of the pressure detection, the sampling time of each pressure detection channel is increased, and the total sampling time is also multiplied, which will inevitably increase power consumption and reduce the refresh rate.
  • the present application provides a detection system, module and method for improving the pressure detection signal to noise ratio that overcomes the above problems or at least partially solves the above problems.
  • a pressure detecting system including a switch switching module, a sampling module, an analog-to-digital conversion module, and a digital control and processing module, wherein the switch switching module collects pressure of a pressure detecting channel through an analog switch a signal, the sampling module samples the collected pressure signal to obtain a sampling signal, converts the sampling signal into a digital signal through a digital-to-analog conversion module, and sends the signal to a digital control and processing module, where the digital control and processing module The digital signal is calculated as a pressure value, and the digital control and processing module receives the touch position transmitted by the touch screen control system, and causes the sampling module to sample at least one pressure detecting channel associated with the touch position.
  • a pressure detecting module comprising a pressure detecting sensor and a pressure detecting system, wherein the pressure detecting system receives a pressure signal of a pressure detecting passage in the pressure detecting sensor, wherein The pressure detection system receives a touch location transmitted by the touch screen control system; sampling for a pressure detection channel associated with the touch location.
  • a pressure detecting method comprising:
  • Sampling is performed for the pressure detection channel associated with the touch location.
  • the touch position generated by the touch screen sensor transmitted by the touch screen control system is received, and the pressure detecting channel associated with the touch position is sampled. Therefore, the present application does not need to sample all the pressure detecting channels, and only needs to sample at least one pressure detecting channel associated with the touch position, and increases the sampling time of the pressure detecting channel associated with the touch position in the same sampling period. Improves the signal-to-noise ratio of pressure detection, reduces power consumption and increases refresh rate.
  • FIG. 1 is a schematic structural view of a conventional pressure detecting module
  • Figure 2 is a schematic plan view of a nine-channel pressure sensor to be inspected
  • FIG. 3 shows the timing of scanning a frame of data by the existing pressure detecting module
  • FIG. 5 is a schematic structural view showing an embodiment of a pressure detecting system of the present application.
  • FIG. 6 is a schematic plan view of the pressure to be inspected according to an embodiment of the pressure detecting system of the present application
  • FIG. 7 is a flow chart showing a digital control and processing module of an embodiment of the pressure detecting system of the present application determining whether the coordinate (X, Y) falls within a node 0 associated pressure detecting area;
  • FIG. 8 is a schematic diagram showing sampling of a digital control and processing module of an embodiment of the pressure detecting system of the present application.
  • FIG. 9 is a schematic diagram showing sampling of a digital control and processing module of another embodiment of the pressure detecting system of the present application.
  • FIG. 10 is a schematic plan view showing the pressure to be inspected according to still another embodiment of the pressure detecting system of the present application.
  • FIG. 11 is a schematic plan view showing the pressure to be inspected according to still another embodiment of the pressure detecting system of the present application.
  • FIG. 12 is a schematic diagram showing sampling of a digital control and processing module of still another embodiment of the pressure detecting system of the present application.
  • FIG. 13 is a schematic diagram showing sampling of a digital control and processing module of still another embodiment of the pressure detecting system of the present application.
  • FIG. 14 is a schematic plan view showing the pressure to be inspected according to still another embodiment of the pressure detecting system of the present application.
  • 15 is a schematic diagram showing sampling of a digital control and processing module of still another embodiment of the pressure detecting system of the present application.
  • 16 is a schematic diagram showing sampling of a digital control and processing module of still another embodiment of the pressure detecting system of the present application.
  • FIG. 17 is a schematic structural view of an embodiment of a pressure detecting module of the present application.
  • Figure 18 is a flow chart showing an embodiment of the pressure detecting method of the present application.
  • Figure 19 is a flow chart showing another embodiment of the pressure detecting method of the present application.
  • Figure 20 is a flow chart showing another embodiment of the pressure detecting method of the present application.
  • the present application provides a pressure detecting system 1 including a switch switching module 11, a sampling module 12, an analog-to-digital conversion module 13, and a digital control and processing module 14, which collects various pressures through an analog switch. Detecting the pressure signal of the channel, the sampling module 12 samples the collected pressure signal, converts the sampled signal into a digital signal through the analog-to-digital conversion module 13, and sends it to the digital control and processing module 14, and the digital control and processing module 14 The digital signal is calculated as a pressure value.
  • the digital control and processing module 14 receives the touch location sent by the touch screen control system 3, and causes the sampling module 12 to sample at least one pressure detection channel associated with the touch location.
  • the touch screen sensor 4 generates touch information and sends it to the office.
  • the touch screen control system 3 obtains a touch location, and the touch screen control system 3 transmits the touch location to the digital control and processing module 14 via the digital path D1.
  • the touch position may be a two-dimensional plane coordinate (X, Y).
  • the touch position can also be represented by other coordinates indicating the touch position, such as polar coordinates.
  • the pressure check plane includes N nodes, each node corresponding to an associated pressure detection area, and N is a natural number, that is, node 0, node 1, node 2, ..., node N, (C0, C1, ..., CN ).
  • the N nodes correspond to N pressure detecting channels of the pressure detecting sensor 2.
  • the digital control and processing module 14 determines a node associated with the coordinate (X, Y) to associate a pressure detection region, and if the coordinate (X, Y) falls within an associated pressure detection region of a node, the number is The control and processing module 14 causes the sampling module 12 to sample the pressure detection channel of the node.
  • the digital control and processing module 14 may sequentially determine, from node 0 to node N, whether the coordinates (X, Y) fall into the associated pressure detection area of the node.
  • the present application may also determine whether the coordinates (X, Y) fall into the associated pressure detection area of the node 0 to the node N, for example, first determine the associated pressure detection area of the odd node such as the node 1, the node 3, and then determine the node. 0, node 2, node 4 and other associated nodes of the associated pressure detection area.
  • the step of the digital control and processing module 14 determining whether the coordinates (X, Y) fall into the node 0 associated pressure detection area includes:
  • the center coordinate (X0, Y0) of the associated pressure detection area of the node 0 is obtained, and the length a0 and the width b0 of the associated pressure detection area are obtained.
  • the node 0 is associated with the center coordinate (X0, Y0) of the pressure detecting area, and the length a0 of the associated pressure detecting area, and the width b0 can be obtained from the factory configuration of the pressure detecting chip, and different parameters are configured for different models.
  • the present application determines an associated pressure detection area of a node into which the coordinate (X, Y) falls, and uses the associated pressure detection area of the dropped node as a touch position in the pressure waiting plane, and the pressure corresponding to the node
  • the detection channel acts as a pressure detection channel associated with the touch location.
  • the digital control and processing module 14 sends the pressure detection channel information associated with the touch position to the sampling module 12 through the digital path D2, so that the sampling module 12 performs the pressure detection channel associated with the touch position. sampling.
  • the present application does not need to sample all the pressure detecting channels, and only needs to sample the pressure detecting channel associated with the touch position, and increases the sampling time of the pressure detecting channel associated with the touch position in the same sampling period, thereby improving the pressure detection.
  • the signal-to-noise ratio reduces power consumption and increases the refresh rate.
  • the digital control and processing module 14 is further configured to determine, according to the touch information sent by the touch screen control system, whether the pressure pending plane has a touch signal, if there is no touch signal, The sampling module 12 does not need to perform sampling.
  • the application avoids unnecessary power consumption generated by sampling the pressure waiting plane in the absence of touch information on the pressure waiting plane.
  • the digital control and processing module 14 detects each pressure associated with the touch position during the sampling period. Channel, repeat sampling.
  • the sampling is repeated for the pressure detecting channel associated with the touch position, and the sampling time of each pressure detecting channel associated with the touch position is increased in the same sampling period.
  • the signal-to-noise ratio of the pressure detection is improved, the power consumption is reduced, and the refresh rate is increased.
  • the pressure detecting channel associated with the touch position if there are three pressure detecting channels associated with the touch position, the digital control and processing module 14 during the sampling period, the pressure detecting channel associated with the touch position The sampling time is extended relative to its original sampling time.
  • the application lengthens the time for sampling the pressure detecting channel associated with the touch position, and increases the sampling time of the pressure detecting channel associated with the touch position in the same sampling period. Thereby, the signal-to-noise ratio of the pressure detection is improved, the power consumption is reduced, and the refresh rate is increased.
  • the pressure check plane of the present application includes 9 nodes, and each node corresponds to an associated pressure detection area, that is, node 0, node 1, node 2, ..., node 8, (C0, C1, ..., CN ).
  • the nine nodes correspond to nine pressure detecting channels of the pressure detecting sensor 2.
  • the touch screen controls the coordinates (X, Y) of the touch position generated by the module 3, and sends the coordinates (X, Y) to the digital control and processing module 14 through the digital path D1.
  • the digital control and processing module 14 obtains the central coordinate (X0, Y0) of the pressure detection area associated with the node 0, and the length a0 and the width b0 of the pressure detection area associated with the node 0.
  • the center coordinates (X0, Y0) of the associated pressure detection area of the node 0, and the length a0, the width b0 can be obtained from the factory configuration of the pressure detecting chip, and different parameters are configured for different models.
  • the touch position of the finger is area 1
  • the coordinates (X, Y) fall into the associated pressure detection area of the node 4, the node 5, the node 7, and the node 8,
  • the pressure detecting channels corresponding to the node 4, the node 5, the node 7, and the node 8 serve as pressure detecting channels associated with the touch positions.
  • the digital control and processing module 14 notifies the sampling module 12 via the digital path D2, sampling for the node 4, node 5, node 7, and node 8.
  • the sampling module 12 repeats sampling for the node 4, node 5, node 7, and node 8 during the sampling period. or,
  • the sampling times of the Node 4, Node 5, Node 7, and Node 8 are extended relative to their original sampling time during the sampling period.
  • the present application does not need to sample all the pressure detecting channels, and only needs to sample each pressure detecting channel associated with the touch position, and increases the sampling time of each pressure detecting channel associated with the touch position in the same sampling period. Improve the signal-to-noise ratio of pressure detection, reduce power consumption and increase refresh rate.
  • the pressure detecting channel corresponding to the node 0, the node 1, the node 3, and the node 4 serves as a pressure detecting channel associated with the touch position.
  • the digital control and processing module 14 notifies the sampling module 12 via the digital path D2, sampling for the node 0, node 1, node 3, and node 4.
  • the sampling module 12 repeats sampling for the node 0, node 1, node 3, and node 4 during the sampling period. or,
  • the sampling module 12 extends the sampling time of the node 0, node 1, node 3, and node 4 with respect to its original sampling time during the sampling period.
  • the present application does not need to sample all the pressure detecting channels, only needs to sample the pressure detecting channel associated with the touch position, and increases the sampling time of the pressure detecting channel associated with the touch position in the same sampling period, thereby improving the sampling time.
  • the signal-to-noise ratio of pressure detection reduces power consumption and Increased refresh rate.
  • the present application provides a pressure detecting module including a pressure detecting sensor 2 and a pressure detecting system 1 that receives a touch position generated by the touch screen sensor 4 transmitted by the touch screen control system 3; At least one pressure detecting channel associated with the touch location is sampled.
  • the touch information generated by the touch screen sensor 4 is sent to the touch screen control system 3, and the touch screen control system 3 obtains a touch position, and sends the touch position to the pressure detecting system through the digital path D1.
  • the digital control and processing module 14 of the pressure detection system 1 samples at least one pressure detection channel associated with the touch location based on the touch location.
  • the pressure waiting plane includes N nodes, each node corresponding to an associated pressure detecting area, and N is a natural number, that is, node 0, node 1, node 2, ..., node N, (C0, C1,... , CN).
  • the N nodes correspond to N pressure detecting channels of the pressure detecting sensor 2.
  • the digital control and processing module 14 determines a node associated with the coordinate (X, Y) to associate a pressure detection region, and if the coordinate (X, Y) falls within an associated pressure detection region of a node, the number is The control and processing module 14 causes the sampling module 12 to sample the pressure detection channel of the node. .
  • the digital control and processing module 14 may sequentially determine, from node 0 to node N, whether the coordinates (X, Y) fall into the associated pressure detection area of the node.
  • the present application may also determine whether the coordinates (X, Y) fall into the associated pressure detection area of the node 0 to the node N, for example, first determine the associated pressure detection area of the odd node such as the node 1, the node 3, and then determine the node. 0, node 2, node 4 and other associated nodes of the associated pressure detection area.
  • the step of the digital control and processing module 14 determining whether the coordinates (X, Y) fall into the node 0 associated pressure detection area includes:
  • the center coordinate (X0, Y0) of the associated pressure detection area of the node 0 is obtained, and the length a0 and the width b0 of the associated pressure detection area are obtained.
  • the node 0 is associated with the center coordinate (X0, Y0) of the pressure detecting area, and the length a0 of the associated pressure detecting area, and the width b0 can be obtained from the factory configuration of the pressure detecting chip, and different parameters are configured for different models.
  • the present application determines an associated pressure detection area of a node into which the coordinate (X, Y) falls, and uses the associated pressure detection area of the dropped node as a touch position in the pressure waiting plane, and the pressure corresponding to the node
  • the detection channel acts as a pressure detection channel associated with the touch location.
  • the digital control and processing module 14 sends the pressure detection channel information associated with the touch position to the sampling module 12 through the digital path D2, so that the sampling module 12 performs the pressure detection channel associated with the touch position. sampling.
  • the present application does not need to sample all the pressure detecting channels, only needs to sample the pressure detecting channel associated with the touch position, and increases the sampling time of the pressure detecting channel associated with the touch position in the same sampling period, thereby improving the sampling time.
  • the signal-to-noise ratio of the pressure detection reduces power consumption and increases the refresh rate.
  • the pressure detecting system 1 is further configured to determine, according to the touch information sent by the touch screen control system, whether the pressure pending plane has a touch signal, if there is no touch signal, the sampling Module 12 does not need to be sampled.
  • the application avoids unnecessary power consumption generated by sampling the pressure waiting plane in the absence of touch information on the pressure waiting plane.
  • the pressure detecting system 1 if there are three pressure detecting channels associated with the touch position, the pressure detecting system 1 is within the sampling period, for each pressure detecting channel associated with the touch position, Repeat the sampling.
  • the sampling is repeated for the pressure detecting channel associated with the touch position, and the sampling time of each pressure detecting channel associated with the touched out position is increased in the same sampling period.
  • the signal-to-noise ratio of the pressure detection is improved, the power consumption is reduced, and the refresh rate is increased.
  • the sampling time of the pressure detecting channel associated with the touch position of the pressure detecting system 1 during the sampling period It is extended relative to its original sampling time.
  • the present application extends the sampling time for the pressure detecting channel associated with the touch position during the sampling period, and increases the sampling time of the pressure detecting channel associated with the touch position during the same sampling period. Thereby, the signal-to-noise ratio of the pressure detection is improved, the power consumption is reduced, and the refresh rate is increased.
  • the pressure detecting module of the present application will be further described below through a specific implementation.
  • the pressure check plane of the present application includes 9 nodes, and each node corresponds to an associated pressure detection area, that is, node 0, node 1, node 2, ..., node 8, (C0, C1, ..., CN ).
  • the nine nodes correspond to nine pressure detecting channels of the pressure detecting sensor 2.
  • the touch screen control module 3 generates coordinates (X, Y) of the touch position, and sends the coordinates (X, Y) to the digital control and processing module 14 through the digital path D1.
  • the digital control and processing module 14 obtains the central coordinate (X0, Y0) of the pressure detection area associated with the node 0, and the length a0 and the width b0 of the pressure detection area associated with the node 0.
  • the center coordinates (X0, Y0) of the associated pressure detection area of the node 0, and the length a0, the width b0 can be obtained from the factory configuration of the pressure detecting chip, and different parameters are configured for different models.
  • the touch position of the finger is area 1
  • the coordinates (X, Y) fall into the associated pressure detection area of the node 4, the node 5, the node 7, and the node 8,
  • the pressure detecting channels corresponding to the node 4, the node 5, the node 7, and the node 8 serve as pressure detecting channels associated with the touch positions.
  • the digital control and processing module 14 notifies the sampling module 12 via the digital path D2, sampling for the node 4, node 5, node 7, and node 8.
  • the sampling module 12 repeats sampling for the node 4, node 5, node 7, and node 8 during the sampling period. or,
  • the sampling module 12 extends the time for sampling of the Node 4, Node 5, Node 7, and Node 8 during the sampling period.
  • the present application does not need to sample all the pressure detecting channels, and only needs to sample each pressure detecting channel associated with the touch position, and increases the sampling time of each pressure detecting channel associated with the touch position in the same sampling period. Improve the signal-to-noise ratio of pressure detection, reduce power consumption and increase refresh rate.
  • the pressure detecting channel corresponding to the node 0, the node 1, the node 3, and the node 4 serves as a pressure detecting channel associated with the touch position.
  • the digital control and processing module 14 notifies the sampling module 12 via the digital path D2, the pin The node 0, node 1, node 3, and node 4 are sampled.
  • the sampling module 12 repeats sampling for the node 0, node 1, node 3, and node 4 during the sampling period. or,
  • the sampling module 12 extends the time for sampling the node 0, node 1, node 3, and node 4 during the sampling period.
  • the present application does not need to sample all the pressure detecting channels, only needs to sample the pressure detecting channel associated with the touch position, and increases the sampling time of the pressure detecting channel associated with the touch position in the same sampling period, thereby improving the sampling time.
  • the signal-to-noise ratio of the pressure detection reduces power consumption and increases the refresh rate.
  • the present application provides a pressure detecting method, including:
  • the touch information generated by the touch screen sensor is sent to the touch screen control system, the touch screen control system obtains a touch position, and sends the touch position to the digital control and processing module through the digital path D1.
  • the pressure waiting plane includes N nodes, each node corresponding to an associated pressure detecting area, and N is a natural number, that is, node 0, node 1, node 2, ..., node N, (C0, C1,... , CN).
  • the N nodes correspond to N pressure detecting channels of the pressure detecting sensor 2.
  • the digital control and processing module 14 determines a node associated with the coordinate (X, Y) to associate a pressure detection region, and if the coordinate (X, Y) falls within an associated pressure detection region of a node, the number is The control and processing module 14 causes the sampling module 12 to sample the pressure detection channel of the node. .
  • the digital control and processing module 14 may sequentially determine, from node 0 to node N, whether the coordinates (X, Y) fall into the associated pressure detection area of the node.
  • the present application may also take other ways to determine whether the coordinates (X, Y) fall into the node 0 to the node.
  • the associated pressure detection area of point N for example, first determines the associated pressure detection area of the odd-numbered nodes such as node 1, node 3, and then determines the associated pressure detection area of the even-numbered nodes such as node 0, node 2, and node 4.
  • the step of the digital control and processing module 14 determining whether the coordinates (X, Y) fall into the node 0 associated pressure detection area includes:
  • the center coordinate (X0, Y0) of the associated pressure detection area of the node 0 is obtained, and the length a0 and the width b0 of the associated pressure detection area are obtained.
  • the node 0 is associated with the center coordinate (X0, Y0) of the pressure detecting area, and the length a0 of the associated pressure detecting area, and the width b0 can be obtained from the factory configuration of the pressure detecting chip, and different parameters are configured for different models.
  • the present application determines an associated pressure detection area of a node into which the coordinate (X, Y) falls, and uses the associated pressure detection area of the dropped node as a touch position in the pressure waiting plane, and the pressure corresponding to the node
  • the detection channel acts as a pressure detection channel associated with the touch location.
  • the digital control and processing module 14 sends the pressure detection channel information associated with the touch position to the sampling module 12 through the digital path D2, so that the sampling module 12 performs the pressure detection channel associated with the touch position. sampling.
  • the present application does not need to sample all the pressure detecting channels, only needs to sample the pressure detecting channel associated with the touch position, and increases the sampling time of the pressure detecting channel associated with the touch position in the same sampling period, thereby improving the sampling time.
  • the signal-to-noise ratio of the pressure detection reduces power consumption and increases the refresh rate.
  • the step S2 includes: repeating, during the sampling period, the pressure detecting channel associated with the touch position. Sampling.
  • the sampling is repeated for the pressure detecting channel associated with the touch position, and the sampling time of each pressure detecting channel associated with the touch position is increased in the same sampling period.
  • the signal-to-noise ratio of the pressure detection is improved, the power consumption is reduced, and the refresh rate is increased.
  • the step S3 includes: sampling time of the pressure detecting channel associated with the touch position during the sampling period It is extended relative to its original sampling time.
  • the present application extends the sampling time for the pressure detecting channel associated with the touch position during the sampling period, and increases the sampling time of each pressure detecting channel associated with the touch position in the same sampling period. Thereby, the signal-to-noise ratio of the pressure detection is improved, the power consumption is reduced, and the refresh rate is increased.
  • the present application does not need to sample all the pressure detecting channels, and only needs to sample each pressure detecting channel associated with the touch position, and increases the sampling time of each pressure detecting channel associated with the touch position in the same sampling period. Improves the signal-to-noise ratio of pressure detection, reduces power consumption, and increases refresh rate.
  • the step S1 further includes: determining, according to the touch information sent by the touch screen control system, whether the pressure pending plane has a touch signal, and if there is no touch signal, there is no need to perform sampling.
  • the application avoids unnecessary power consumption generated by sampling the pressure waiting plane in the absence of touch information on the pressure waiting plane.
  • the pressure check plane of the present application includes 9 nodes, and each node corresponds to an associated pressure detection area, that is, node 0, node 1, node 2, ..., node 8, (C0, C1, ..., CN ).
  • the nine nodes correspond to nine pressure detecting channels of the pressure detecting sensor 2.
  • the method includes:
  • the digital control and processing module 14 obtains a central coordinate (X0, Y0) of the node 0 associated pressure detection area, and a length a0 and a width b0 of the pressure detection area associated with the node 0.
  • the center coordinate (X0, Y0) of the associated pressure detecting area of the node 0, and the length a0 of the associated pressure detecting area, and the width b0 can be obtained from the factory configuration of the pressure detecting chip, and different parameters are configured for different models.
  • the touch position of the finger is area 1
  • the coordinates (X, Y) fall into the associated pressure detection area of the node 4, the node 5, the node 7, and the node 8,
  • the pressure detecting channels corresponding to the node 4, the node 5, the node 7, and the node 8 serve as pressure detecting channels associated with the touch positions.
  • the digital control and processing module 14 notifies the sampling module 12 via the digital path D2, sampling for the node 4, node 5, node 7, and node 8.
  • the sampling module 12 repeats sampling for the node 4, node 5, node 7, and node 8 during the sampling period. Or,
  • the sampling module 12 extends the time for sampling of the Node 4, Node 5, Node 7, and Node 8 during the sampling period.
  • the present application does not need to sample all the pressure detecting channels, and only needs to sample each pressure detecting channel associated with the touch position, and increases the sampling time of each pressure detecting channel associated with the touch position in the same sampling period. Improve the signal-to-noise ratio of pressure detection, reduce power consumption and increase refresh rate.
  • the pressure detecting channel corresponding to the node 0, the node 1, the node 3, and the node 4 serves as a pressure detecting channel associated with the touch position.
  • the digital control and processing module 14 notifies the sampling module 12 via the digital path D2, sampling for the node 0, node 1, node 3, and node 4.
  • the sampling module 12 repeats sampling for the node 0, node 1, node 3, and node 4 during the sampling period. or,
  • the sampling module 12 extends the time for sampling the node 0, node 1, node 3, and node 4 during the sampling period.
  • the present application does not need to sample all the pressure detecting channels, only needs to sample the pressure detecting channel associated with the touch position, and increases the sampling time of the pressure detecting channel associated with the touch position in the same sampling period, thereby improving the sampling time.
  • the signal-to-noise ratio of the pressure detection reduces power consumption and increases the refresh rate.
  • modules in the devices of the embodiments can be adaptively changed and placed in one or more devices different from the embodiment.
  • the modules or units or components of the embodiments may be combined into one module or unit or component, and further they may be divided into a plurality of sub-modules or sub-units or sub-components.
  • any combination of the features disclosed in the specification, including the accompanying claims, the abstract and the drawings, and any methods so disclosed, or All processes or units of the device are combined.
  • Each feature disclosed in this specification (including the accompanying claims, the abstract and the drawings) may be replaced by alternative features that provide the same, equivalent or similar purpose.
  • the various component embodiments of the present application can be implemented in hardware, or in a software module running on one or more processors, or in a combination thereof.
  • a microprocessor or digital signal processor may be used in practice to implement some or all of the functionality of some or all of the components of the message alerting in accordance with embodiments of the present application.
  • the application can also be implemented as a device or device program (e.g., a computer program and a computer program product) adapted to perform some or all of the methods described herein.
  • Such a program implementing the present application may be stored on a computer readable medium or may have one or more signals form. Such signals may be downloaded from an Internet website, provided on a carrier signal, or provided in any other form.
  • "an embodiment," or "an embodiment," or "one or more embodiments" as used herein means that the particular features, structures, or characteristics described in connection with the embodiments are included in at least one embodiment of the present application.
  • phrase "in one embodiment" is not necessarily referring to the same embodiment.

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  • Position Input By Displaying (AREA)

Abstract

La présente invention concerne un système de détection de pression (1) comprenant un module de commutation de commutateur (11), un module d'échantillonnage (12), un module de conversion analogique-numérique (13) et un module de commande et de traitement numérique (14). Le module de commutation de commutateur (11) collecte un signal de pression de chaque canal de détection de pression par l'intermédiaire d'un commutateur analogique. Le module d'échantillonnage (12) échantillonne le signal de pression collecté et convertit le signal échantillonné en un signal numérique par l'intermédiaire du module de conversion numérique-analogique (13) et l'envoie au module de commande et de traitement numérique (14). Le module de commande et de traitement numérique (14) calcule les données en une valeur de pression, reçoit une position tactile transmise par un système de commande à écran tactile (3), et amène le module d'échantillonnage (12) à échantillonner au moins un canal de détection de pression associé à la position tactile. L'invention concerne également un module de détection de pression et un procédé de détection de pression qui améliorent le rapport signal sur bruit de la détection d'une pression, réduisent la consommation d'énergie et augmentent le taux de rafraîchissement.
PCT/CN2016/085524 2016-06-13 2016-06-13 Système, module et procédé de détection de pression WO2017214789A1 (fr)

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