WO2024067592A1 - Système et procédé de détection tactile - Google Patents

Système et procédé de détection tactile Download PDF

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Publication number
WO2024067592A1
WO2024067592A1 PCT/CN2023/121584 CN2023121584W WO2024067592A1 WO 2024067592 A1 WO2024067592 A1 WO 2024067592A1 CN 2023121584 W CN2023121584 W CN 2023121584W WO 2024067592 A1 WO2024067592 A1 WO 2024067592A1
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WO
WIPO (PCT)
Prior art keywords
touch
sensor
touch detection
detection mode
proximity
Prior art date
Application number
PCT/CN2023/121584
Other languages
English (en)
Chinese (zh)
Inventor
龚启伟
李闯
孙明辉
顾晶
Original Assignee
延锋国际汽车技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
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Application filed by 延锋国际汽车技术有限公司 filed Critical 延锋国际汽车技术有限公司
Publication of WO2024067592A1 publication Critical patent/WO2024067592A1/fr

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Classifications

    • 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
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0412—Digitisers structurally integrated in a display
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • B60K35/10—Input arrangements, i.e. from user to vehicle, associated with vehicle functions or specially adapted therefor
    • 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
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0416—Control or interface arrangements specially adapted for digitisers
    • G06F3/04164—Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads
    • 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
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0445—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
    • B60K2360/143—Touch sensitive instrument input devices
    • B60K2360/1434—Touch panels

Definitions

  • the present invention relates to the technical field of touch detection, and more specifically, to a touch detection method, an apparatus, a computing device, a touch detection system, a vehicle including the touch detection system, and a computer-readable storage medium.
  • touch control technology With the popularity of touch control technology, more and more vehicles are using touch control technology in the center console. Drivers or passengers can perform various vehicle control operations on the touch panel of the center console through touch operation.
  • the touch panel does not have the mechanical part of traditional buttons, which is easy to use and very beautiful.
  • the current touch panel of the center console has a series of problems.
  • the driver/passenger holds an object, or the driver/passenger touches the touch panel accidentally, the function buttons on the touch panel may be triggered by mistake, resulting in incorrect control operations.
  • the layout of the function buttons on the touch panel may affect driving safety during vehicle driving.
  • the first aspect of the present invention proposes a touch detection method, comprising: in a proximity detection mode, detecting the approach of an object via a sensor of a touch panel and obtaining a proximity detection result; based on the proximity detection result, determining whether to activate the touch detection mode; and if so, controlling the sensor to enter the touch detection mode to detect the touch of the object, otherwise controlling the sensor to remain in the proximity detection mode.
  • the embodiment after detecting that an object is close to the touch panel, the object's contact with the touch panel is detected.
  • the touch event of the touch panel can effectively reduce the false triggering of the function keys on the touch panel and the erroneous vehicle control operation caused by it.
  • the embodiment does not need to arrange additional proximity sensors and wiring, so it can realize the functions of proximity and touch detection at the same time with a small space requirement, which saves costs to a great extent and avoids the situation where the touch controllable area is reduced due to the arrangement of proximity sensors.
  • determining whether to activate the touch detection mode based on the proximity detection result further includes: determining whether the object continues to approach the touch panel based on the proximity detection result; if so, determining to activate the touch detection mode.
  • the senor includes at least two groups of electrodes for detecting the approach of the object in a mutual capacitance manner, wherein each group of electrodes is arranged in a layer-by-layer nested manner. Based on the proximity detection result, determining whether the object continues to approach the touch panel further includes: based on the proximity detection result, determining whether the at least two groups of electrodes successively detect the approach of the object, and then determining whether the object continues to approach the touch panel.
  • determining whether to activate the touch detection mode based on the proximity detection result further includes: calculating the distance of the object relative to the surface of the touch panel based on the proximity detection result; if the distance is less than a preset threshold, determining to activate the touch detection mode.
  • determining whether to activate the touch detection mode based on the proximity detection result further includes: determining the movement direction and/or movement trajectory of the object based on the proximity detection result; if the movement direction and/or the movement trajectory meets preset conditions, determining to activate the touch detection mode.
  • the senor includes a plurality of electrodes for detecting the touch of the object, the plurality of electrodes are arranged in a touch detection area on the touch panel, and the method further includes: determining the movement direction and/or movement trajectory of the object based on the proximity detection result; and determining the position of the touch detection area based on the movement direction and/or the movement trajectory.
  • the touch detection method further comprises: determining whether the sensor enters a touch detection mode within a first time period; and if not, performing the following steps: controlling the sensor to enter the touch detection mode to detect the touch of the object; if the sensor does not detect the touch of the object within a second time period, controlling the sensor to enter the touch detection mode;
  • the proximity detection mode is described below.
  • the touch detection method further comprises: in the touch detection mode, detecting the departure of the object via the sensor; and based on detecting the departure of the object from the touch panel, controlling the sensor to enter the proximity detection mode.
  • the senor in the proximity detection mode, has a first configuration mode, and in the touch detection mode, the sensor has a second configuration mode different from the first configuration mode.
  • a second aspect of the present invention proposes a touch detection device, comprising: a proximity detection module, which is configured to detect the approach of an object via a sensor of a touch panel and obtain a proximity detection result in a proximity detection mode; an activation determination module, which is configured to determine whether to activate the touch detection mode based on the proximity detection result; and a detection mode control module, which is configured to control the sensor to enter the touch detection mode to detect the touch of the object if it is determined that the touch detection mode is activated, otherwise control the sensor to remain in the proximity detection mode.
  • a third aspect of the present invention provides a computing device, comprising: a processor; and a memory for storing computer executable instructions, which, when the computer executable instructions are executed, enables the processor to execute a touch detection method of any one of the embodiments of the first aspect.
  • a fourth aspect of the present invention proposes a touch detection system, comprising: a touch panel including a sensor configured to selectively detect the approach or touch of an object; and a computing device according to the third aspect.
  • a fifth aspect of the present invention provides a vehicle comprising the touch detection system according to the fourth aspect.
  • a sixth aspect of the present invention provides a computer-readable storage medium having computer-executable instructions stored thereon, and the computer-executable instructions are used to execute a touch detection method of any one of the embodiments of the first aspect.
  • FIG1 shows a schematic block diagram of a touch detection system according to an embodiment of the present invention
  • FIG. 2 a shows a schematic electrode configuration mode of a mutual capacitance sensor in a proximity detection mode according to an embodiment of the present invention
  • FIG. 2 b shows another schematic electrode configuration mode of a mutual capacitance sensor in a proximity detection mode according to an embodiment of the present invention
  • FIG. 2 c shows another schematic electrode configuration mode of the mutual capacitance sensor in the proximity detection mode according to an embodiment of the present invention
  • FIG3 a shows a schematic electrode configuration mode of a self-capacitance sensor in a proximity detection mode according to an embodiment of the present invention
  • FIG3 b shows another schematic electrode configuration mode of the self-capacitance sensor in the proximity detection mode according to an embodiment of the present invention
  • FIG3 c shows another schematic electrode configuration mode of the self-capacitance sensor in the proximity detection mode according to an embodiment of the present invention
  • FIG4 shows a schematic flow chart of a touch detection method according to an embodiment of the present invention
  • FIG5 is a schematic diagram showing proximity detection in the electrode configuration mode of FIG3a
  • FIG6 shows a schematic block diagram of a touch detection device according to an embodiment of the present invention.
  • FIG. 7 shows a schematic block diagram of a computing device according to an embodiment of the present invention.
  • Reference numerals list 100 Touch detection system 11: Touch panel 12: Controller 110: Electrode 400: Touch detection method 401: In the proximity detection mode, the proximity of the object is detected via the sensor of the touch panel and the proximity detection result is obtained 402: Determine whether to activate touch detection mode based on the proximity detection result 403: If it is determined that the touch detection mode is activated, the sensor is controlled to enter the touch detection mode to detect the touch of the object; otherwise, the sensor is controlled to remain in the proximity detection mode. 600: Touch detection device 601: Proximity detection module 602: Touch to activate the confirmation module 603: Detection mode control module 700: Computing equipment 701: Processor 702: Memory
  • the present invention solves the above technical problem by detecting the object's touch after detecting the object's approach.
  • the content of the present invention is described below based on several embodiments.
  • FIG. 1 shows a block diagram of a touch detection system according to an embodiment of the present invention.
  • the touch detection system 100 may include a touch panel 11 and a controller 12.
  • the touch detection system 100 may be a touch display system with a display function.
  • the touch detection system 10 may be arranged, for example, in the center console of the vehicle, inside the door (such as for controlling windows, child locks, etc.), OHC overhead console (such as reading lights, skylights, etc.), etc.
  • the touch panel 11 includes a sensor composed of a plurality of electrodes 110.
  • FIG. 1 shows an exemplary arrangement of electrodes.
  • a plurality of electrodes 110 can be arranged in a grid along a row direction (X direction) and a column direction (Y direction) intersecting the row direction.
  • the controller 12 controls each electrode 110 to be connected to a different controller terminal (such as an emitter terminal, a receiving terminal, a shielding terminal) or suspended through a logic circuit (not shown in FIG.
  • the controller 12 controls the sensor to enter a proximity detection mode or a touch detection mode by controlling the plurality of electrodes 110 of the sensor to be connected to different terminals. That is, in the present invention, proximity detection and touch detection are realized using the same sensor in a time-division multiplexing manner. In the proximity detection mode and the touch detection mode, the sensor has different configuration modes.
  • the configuration mode includes an electrode configuration mode and a parameter (such as gain, threshold and filtering) configuration mode.
  • the type, shape, size and/or position of the electrode can be set according to actual needs (such as the size and shape of the touch panel).
  • the shape of the electrode can be, for example, a strip, a circle, a fan, a zigzag, an XY dot matrix, etc.
  • each row of electrodes in the X direction can be connected to the controller 12 through a logic circuit, and each row of electrodes can be selectively connected to an emitter terminal, a receiver terminal, a shielding terminal or suspended through the control of the logic circuit by the controller 12; each column of electrodes in the Y direction can be connected to the controller 12 through a logic circuit, and each column of electrodes can be selectively connected to an emitter terminal, a receiver terminal, a shielding terminal or suspended through the control of the logic circuit by the controller 12.
  • the controller 12 By using the same logic circuit to control a row/column of electrodes to be connected to an emitter terminal, a receiver terminal, a shielding terminal or suspended, the number of required logic circuits can be reduced, and the required space and hardware costs can be reduced. It can be understood that a separate logic circuit can also be set for each electrode to control the electrode to be connected to an emitter terminal, a receiver terminal, a shielding terminal or suspended.
  • the controller 12 also configures the parameters of the sensor according to different detection modes. The parameter values in different detection modes can be preset.
  • the controller 12 controls the electrodes 110 in one direction to be connected to the shielding terminal or suspended through a logic circuit, selects some electrodes in the electrodes 110 in the other direction for grouping, or groups all electrodes in the other direction for proximity detection.
  • Each group of electrodes includes two rows/columns of electrodes, one of which is connected to the emitter terminal and the other is connected to the receiving terminal.
  • the two adjacent rows/columns of electrodes 110 can be used as a group of electrodes, or the two spaced rows/columns of electrodes 110 can be used as a group of electrodes.
  • the controller 12 controls all or part of the electrodes 110 in one direction to be connected to the emitter terminal and all or part of the electrodes 110 in the other direction to be connected to the receiving terminal for touch detection through a logic circuit.
  • a logic circuit is separately provided for each electrode, some or all of the electrodes 110 can be selected for proximity detection or touch detection according to actual needs.
  • each row of electrodes in the X direction can be connected to the controller 12 through a logic circuit, and each row of electrodes is selectively connected to an emitter terminal, a shielding terminal or suspended through the control of the logic circuit by the controller 12; each column of electrodes in the Y direction is connected to the controller 12 through a logic circuit, and each column of electrodes is selectively connected to an emitter terminal, a shielding terminal or suspended through the control of the logic circuit by the controller 12.
  • the controller 12 By using the same logic circuit to control a row/column of electrodes to be connected to an emitter terminal, a shielding terminal or suspended, the number of required logic circuits can be reduced, and the required space and hardware costs can be reduced. It is also understandable that a separate logic circuit can be set for each electrode to control the electrode to be connected to an emitter terminal, a shielding terminal or suspended.
  • the controller 12 also configures the parameters of the sensor according to different detection modes. The parameter values in different detection modes can be preset.
  • the controller 12 controls the electrodes 110 in one direction to be connected to the shielding terminal or suspended through a logic circuit, and selects some or all electrodes in the electrodes 110 in the other direction to be connected to the emitter terminal for proximity detection.
  • the controller 12 controls some or all electrodes in two directions to be connected to the emitter terminal through a logic circuit for touch detection. In an embodiment in which a logic circuit is separately provided for each electrode, some or all electrodes 110 can be selected for proximity detection or touch detection according to actual needs.
  • the proximity or touch of an object is detected by self-capacitance and mutual capacitance, respectively.
  • the proximity of an object is detected by self-capacitance, and the touch of an object is detected by mutual capacitance.
  • the proximity of an object can also be detected by mutual capacitance, and the touch of an object can also be detected by self-capacitance.
  • the touch of an elephant is detected by self-capacitance and mutual capacitance, respectively.
  • FIG2a shows a schematic electrode configuration mode of a mutual capacitance sensor in a proximity detection mode according to an embodiment of the present invention.
  • the sensor of the touch panel includes eight rows arranged along the X direction and eight columns arranged along the Y direction.
  • the controller 12 controls the electrodes in the X direction or the Y direction to be connected to the shielding terminal or suspended, and divides the electrodes in the other direction into four groups, each group of electrodes is arranged in a layer-by-layer nested manner, and each group of electrodes is connected to the emitter terminal or the receiving terminal, respectively.
  • the first group of electrodes includes two rows/columns of electrodes on the outermost side (outermost layer) of the touch panel
  • the second group of electrodes includes two rows/columns of electrodes on the second layer (sub-outer layer)
  • the third group of electrodes includes two rows/columns of electrodes on the third layer
  • the fourth group of electrodes includes two rows/columns of electrodes on the fourth layer (innermost layer).
  • FIG2b shows another schematic electrode configuration mode of a mutual capacitance sensor in a proximity detection mode according to an embodiment of the present invention.
  • the sensor of the touch panel also includes eight rows arranged along the X direction and eight columns arranged along the Y direction.
  • the controller 12 controls the electrodes in the X direction or the Y direction to be connected to the shielding terminal or suspended, and divides the electrodes in the other direction into four groups, with two adjacent rows/columns of electrodes as one group, and each group of electrodes is connected to the emitter terminal or the receiving terminal, respectively. In other words, each group of electrodes is arranged adjacent to each other.
  • FIG2c shows another schematic electrode configuration mode of the mutual capacitance sensor in the proximity detection mode according to an embodiment of the present invention.
  • the sensor of the touch panel also includes eight rows arranged along the X direction and eight columns arranged along the Y direction.
  • the controller 12 controls the electrodes in the X direction or the Y direction to be connected to the shielding terminal or suspended, and uses the two groups of electrodes located on the outermost side of the touch panel in the electrodes in the other direction for proximity detection, and each group of electrodes is connected to the emitter terminal or the receiving terminal respectively.
  • FIG3a shows a schematic electrode configuration mode of a self-capacitive sensor in a proximity detection mode according to an embodiment of the present invention.
  • the sensor of the touch panel includes eight rows arranged along the X direction and eight columns arranged along the Y direction.
  • the controller 12 controls the electrodes in the X direction or the Y direction to be connected to the shielding terminal or suspended, and connects the two outermost row/column electrodes of the touch panel in the other direction to the emitter terminal.
  • FIG3b shows another schematic electrode configuration mode of the self-capacitive sensor in the proximity detection mode according to an embodiment of the present invention.
  • the sensor of the touch panel includes eight rows of electrodes arranged along the X direction and eight columns of electrodes arranged along the Y direction.
  • the controller 12 controls the electrodes in the X direction or the Y direction to be connected to the shielding terminal or to be suspended, and connects the four row/column electrodes in the other direction outside the touch panel to the emitter terminal.
  • FIG3c shows another schematic electrode configuration mode of the self-capacitance sensor in the proximity detection mode according to an embodiment of the present invention.
  • the sensor of the touch panel includes eight rows arranged along the X direction and eight columns arranged along the Y direction.
  • the controller 12 controls the electrodes in the X direction or the Y direction to be connected to the shielding terminal or suspended, and connects the six row/column electrodes located outside the touch panel in the other direction to the emitter terminal.
  • any one or more electrodes can be selected for proximity detection according to actual needs (such as the size of the touch panel, the movement direction/motion trajectory tracking of the object).
  • FIG. 4 shows a schematic flow chart of the touch detection method according to an embodiment of the present invention.
  • the method 400 can be executed by the controller 12 in Figure 1, or by other computing devices.
  • method 400 includes steps 401 , 402 , and 403 .
  • method 400 includes: in a proximity detection mode, detecting the proximity of an object via a sensor of a touch panel and obtaining a proximity detection result.
  • the touch panel may be, for example, touch panel 11 in FIG. 1 .
  • each electrode of the sensor may be controlled by a logic circuit to be connected to a corresponding controller terminal and the parameters of the sensor (such as gain, threshold, and filtering) may be configured, so that the sensor enters the proximity detection mode to detect the proximity of an object.
  • the proximity detection result may be, for example, a mutual capacitance value between two electrodes or a self-capacitance value between an electrode and an object (such as a human hand).
  • the method 400 includes: determining whether to activate the touch detection mode based on the proximity detection result. When the proximity detection result is within a preset touch activation range, it is determined that the touch detection mode is activated.
  • the groups of electrodes that detect the proximity of an object in a mutual capacitance manner are arranged in a layer-by-layer nested manner.
  • the first group of electrodes in the outermost layer first detects the proximity of the object.
  • the groups of electrodes in the inner layers detect the proximity of the object in turn. Therefore, it is possible to detect whether the object is approaching the touch panel by the change in the mutual capacitance of each group of electrodes.
  • the approach of the object is detected successively to determine whether the object continues to approach the touch panel.
  • the inner groups of electrodes detect the approach of the object in turn, as shown in FIG5, the outer electrodes can be gradually connected to the shielding terminal or suspended, so that more accurate and more refined proximity detection can be achieved while expanding the detection range.
  • the approach of the object is detected by mutual capacitance, and adjacent electrodes form a group of electrodes.
  • the mutual capacitance capacitance of the electrode detecting the object gradually decreases. Therefore, it can be determined whether the object continues to approach the touch panel by judging whether the mutual capacitance capacitance of each group of electrodes continues to decrease.
  • the approach of the object is detected by self-capacitance.
  • the self-capacitance capacitance of each electrode detecting the object gradually increases. Therefore, it can be determined whether the object continues to approach the touch panel by judging whether the self-capacitance capacitance of each electrode continues to increase.
  • the distance of the object relative to the surface of the touch panel can be calculated based on the proximity detection result, and if the distance is less than a preset threshold, the touch detection mode is determined to be activated.
  • the distance of the object relative to the surface of the touch panel gradually decreases.
  • the correspondence between the mutual capacitance value or the self-capacitance value and the distance can be preset, and the distance of the object relative to the surface of the touch panel can be calculated based on the obtained mutual capacitance value or the self-capacitance value.
  • the calculated distance is compared with the preset threshold, and if the distance is less than the preset threshold, the touch detection mode is determined to be activated.
  • the direction of movement and/or the trajectory of movement of the object can be determined based on the proximity detection result, and if the direction of movement and/or the trajectory of movement meet the preset conditions, the touch detection mode is determined to be activated.
  • at least two groups of electrodes (mutual capacitance method) or at least two electrodes (self-capacitance method) are used to detect the proximity of the object.
  • the direction of movement and/or the trajectory of movement of the object can be determined by the change of the mutual capacitance of at least two groups of electrodes or the self-capacitance of at least two electrodes.
  • the preset conditions may include a specific direction of movement and/or a specific trajectory of movement of the object.
  • the function button on the touch panel can only be triggered by the driver (main driver) and/or the passenger (co-driver), then the specific direction of movement can be set to the main driver/co-driver direction, and/or the specific trajectory of movement can be set to the trajectory of movement from the main driver/co-driver position to the touch panel. In this way, it is possible to identify whether the approaching object is a suitable function button triggering object, thereby reducing the operation of false triggering.
  • the method 400 includes: if it is determined that the touch detection mode is activated, controlling the sensor to enter the touch detection mode to detect the touch of the object; otherwise, controlling the sensor to remain in the proximity mode. Detection mode. Specifically, if it is determined to activate the touch detection mode, then according to the configuration mode in the touch detection mode, each electrode of the sensor is connected to the corresponding controller terminal and the parameters of the sensor are configured, otherwise the connection state of each electrode of the sensor and the sensor parameters remain unchanged.
  • each electrode is controlled to be connected to the corresponding controller terminal, and the parameters of the sensor are configured according to the parameter configuration mode in the touch detection mode.
  • different touch detection areas can be selected on the touch panel 11 according to different objects, and multiple electrodes in the area are used to detect the touch of the object, that is, the electrodes in the area are controlled to be connected to the corresponding controller terminals according to the electrode configuration mode in the touch detection mode, and other electrodes outside the area are connected to the shielding terminal or suspended.
  • the method 400 may also include: determining the movement direction and/or movement trajectory of the object based on the proximity detection result, and determining the position of the touch detection area based on the movement direction and/or movement trajectory. As described above, during proximity detection, at least two groups of electrodes (mutual capacitance method) or two electrodes (self-capacitance method) are used to detect the proximity of the object.
  • the movement direction and/or movement trajectory of the object are determined by the change of the mutual capacitance capacitance of at least two groups of electrodes or the self-capacitance capacitance of at least two electrodes, and then the touch detection area on the touch panel is determined according to the movement direction and/or movement trajectory of the object.
  • the touch detection area is determined by judging whether the object comes from the main driver's seat or the co-driver's seat, and the relevant function buttons are rearranged in the area.
  • the operation corresponding to the touch can also be determined in response to the touch of the object.
  • the operation corresponding to the touch can be specific to the object. For example, if the driver (main driver) or the passenger (co-driver) touches the air conditioning temperature adjustment button on the touch panel, the air conditioning control system can be controlled to adjust only the air conditioning temperature on the main driver's/co-driver's side.
  • the touch detection mode may be automatically switched to when no object is detected approaching for a period of time.
  • method 400 may also include: determining whether the sensor enters the touch detection mode within a first time period. If the sensor does not enter the touch detection mode within the first time period, controlling the sensor to enter the touch detection mode to detect the touch of the object. If the sensor does not detect the touch of the object within the second time period, the sensor is controlled to enter the proximity detection mode again.
  • the lengths of the first time period and the second time period can be set as needed.
  • the first time period can be the time required to scan all electrodes, and the second time period can be set to be less than the reaction time of humans.
  • touch detection mode By automatically switching between the touch detection mode and the proximity detection mode, it is possible to effectively prevent the missed detection of the object approaching due to some special circumstances.
  • special circumstances include, for example, a proximity detection failure of the sensor, an object approaching the touch panel from the side rather than directly above, etc.
  • the operation corresponding to the touch can be determined in response to the touch.
  • a touch detection area on the touch panel can also be determined, and the relevant function keys can be arranged in the touch detection area.
  • Electrodes in the area are used to detect the touch of the object, that is, the electrodes in the area are controlled to be connected to the corresponding controller terminals according to the electrode configuration mode in the touch detection mode, and other electrodes outside the area are connected to the shielding terminal or suspended.
  • the entire touch panel is used as the touch detection area.
  • method 400 may also include: in the touch detection mode, detecting the departure of the object via the sensor, and based on detecting that the object leaves the touch panel, controlling the sensor to enter the proximity detection mode.
  • each electrode of the sensor can be controlled by a logic circuit to be connected to the corresponding controller terminal and the parameters of the sensor (such as gain, threshold, filtering) can be configured, so that the sensor enters the proximity detection mode to detect the approach of the object.
  • the senor may be initialized. Initialization may include benchmarking and calibration of the sensor to improve detection accuracy. Initialization may be automatically triggered when the touch detection system is started, anomalies occur, failures occur, sleep/wake-up occurs, or it may be triggered by the user.
  • this embodiment after detecting that an object is close to the touch panel, the object's touch event on the touch panel is detected, which can effectively reduce the false triggering of the function keys on the touch panel and the erroneous vehicle control operation caused by it.
  • this embodiment does not need to arrange additional proximity sensors and wiring, so it can realize the functions of proximity and touch detection at the same time with a small space requirement, which saves costs to a great extent and avoids the situation where the touch controllable area is reduced due to the arrangement of proximity sensors.
  • the touch detection device 600 includes a proximity detection module 601, a touch activation determination module 602, and a detection mode control module 603.
  • the proximity detection module 601 is configured to detect the proximity of an object via a sensor of the touch panel in the proximity detection mode and obtain a proximity detection result.
  • the touch activation determination module 602 is configured to determine whether to activate the touch detection mode based on the proximity detection result.
  • the detection mode control module 603 is configured to control the sensor to enter the touch detection mode to detect the touch of the object if it is determined to activate the touch detection mode, otherwise the sensor is controlled to remain in the proximity detection mode.
  • the touch activation determination module 602 is further configured to determine whether the object continues to approach the touch panel based on the proximity detection result; if so, determine to activate the touch detection mode.
  • the senor includes at least two groups of electrodes for detecting the proximity of an object in a mutual capacitance manner, wherein each group of electrodes is arranged in a layer-by-layer nested manner.
  • the touch activation determination module 602 is further configured to determine whether the at least two groups of electrodes detect the proximity of an object successively based on the proximity detection result; if so, determine that the object continues to approach the touch panel.
  • the touch activation determination module 602 is further configured to calculate the distance of the object relative to the surface of the touch panel based on the proximity detection result; if the distance is less than a preset threshold, determine to activate the touch detection mode.
  • the touch activation determination module 602 is further configured to determine the movement direction and/or movement trajectory of the object based on the proximity detection result; if the movement direction and/or movement trajectory meets preset conditions, determine to activate the touch detection mode.
  • the senor includes a plurality of electrodes for detecting the touch of an object, and the plurality of electrodes are arranged in a touch detection area on the touch panel.
  • the touch detection device 600 further includes a touch detection area determination module (not shown in FIG. 6 ), which is configured to determine the movement direction and/or movement trajectory of the object based on the proximity detection result; and determine the position of the touch detection area based on the movement direction and/or movement trajectory.
  • the touch detection device 600 further includes a departure detection module (not shown in FIG. 6 ), which is configured to detect the departure of the object via the sensor in the touch detection mode.
  • the detection mode control module 603 is further configured to control the sensor to enter the proximity detection mode based on detecting that the object leaves the touch panel.
  • the senor in the proximity detection mode, has a first configuration mode, and Furthermore, in the touch detection mode, the sensor has a second configuration mode different from the first configuration mode.
  • FIG7 shows a schematic diagram of a computing device according to an embodiment of the present invention.
  • the computing device 700 may be, for example, the controller 12 in FIG1 .
  • the computing device 700 includes a processor (e.g., a central processing unit (CPU)) 701 and a memory 702 coupled to the processor 701.
  • the memory 702 is used to store computer executable instructions, which, when executed, cause the processor 701 to perform the method in the above embodiment.
  • the processor 701 and the memory 702 are connected to each other via a bus, and an input/output (I/O) interface is also connected to the bus.
  • I/O input/output
  • the computing device 700 may also include a plurality of components (not shown in FIG7 ) connected to the I/O interface, including but not limited to: an input unit, such as a keyboard, a mouse, etc.; an output unit, such as various types of displays, speakers, etc.; a storage unit, such as a disk, an optical disk, etc.; and a communication unit, such as a network card, a modem, a wireless communication transceiver, etc.
  • the communication unit allows the computing device 700 to exchange information/data with other devices via a computer network such as the Internet and/or various telecommunication networks.
  • the present invention further proposes a touch detection system, comprising a touch panel (such as the touch panel 11 in FIG. 1 ) and a computing device (such as the computing device in FIG. 7 ) proposed in the above embodiment.
  • a touch detection system comprising a touch panel (such as the touch panel 11 in FIG. 1 ) and a computing device (such as the computing device in FIG. 7 ) proposed in the above embodiment.
  • the present invention also provides a vehicle, comprising the touch detection system provided in the above embodiment.
  • Computer-readable storage media are loaded with computer-readable program instructions for executing various embodiments of the present invention.
  • Computer-readable storage media can be a tangible device that can hold and store instructions used by an instruction execution device.
  • Computer-readable storage media can be, for example, but not limited to, electrical storage devices, magnetic storage devices, optical storage devices, electromagnetic storage devices, semiconductor storage devices, or any suitable combination of the above.
  • Non-exhaustive of computer-readable storage media include: portable computer disks, hard disks, random access memories (RAM), read-only memories (ROM), erasable programmable read-only memories (EPROM or flash memory), static random access memories (SRAM), portable compact disk read-only memories (CD-ROM), digital versatile disks (DVD), memory sticks, floppy disks, mechanical encoding devices, such as punch cards or protruding structures in grooves on which instructions are stored, and any suitable combination of the above.
  • RAM random access memories
  • ROM read-only memories
  • EPROM or flash memory erasable programmable read-only memories
  • SRAM static random access memories
  • CD-ROM compact disk read-only memories
  • DVD digital versatile disks
  • memory sticks floppy disks
  • mechanical encoding devices such as punch cards or protruding structures in grooves on which instructions are stored, and any suitable combination of the above.
  • the computer-readable storage media used here are not interpreted as instantaneous signals themselves, such as radio waves or other freely propagating electromagnetic waves, electromagnetic waves propagated by waveguides or other transmission media (e.g., light pulses through optical fiber cables), or electrical signals transmitted by wires.
  • the present invention provides a computer-readable storage medium
  • the computer-readable storage medium has computer-executable instructions stored thereon, and the computer-executable instructions are used to execute the methods in various embodiments of the present invention.
  • the present invention also proposes a computer program product, which is tangibly stored on a computer-readable storage medium and includes computer-executable instructions.
  • a computer program product which is tangibly stored on a computer-readable storage medium and includes computer-executable instructions.
  • the computer-executable instructions are executed, at least one processor is enabled to perform the method in each embodiment of the present invention.
  • various example embodiments of the present invention may be implemented in hardware or dedicated circuits, software, firmware, logic, or any combination thereof. Certain aspects may be implemented in hardware, while other aspects may be implemented in firmware or software that may be executed by a controller, microprocessor, or other computing device.
  • firmware or software that may be executed by a controller, microprocessor, or other computing device.
  • Computer-readable program instructions or computer program products for executing the various embodiments of the present invention can also be stored in the cloud. When needed, users can access the computer-readable program instructions for executing an embodiment of the present invention stored in the cloud through mobile Internet, fixed network or other networks, thereby implementing the technical solutions disclosed in accordance with the various embodiments of the present invention.

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Abstract

Des modes de réalisation de la présente invention concernent un procédé de détection tactile. Le procédé comprend : dans un mode de détection de proximité, détecter la proximité d'un objet au moyen d'un capteur d'un panneau tactile et acquérir un résultat de détection de proximité ; sur la base du résultat de détection de proximité, déterminer s'il faut activer un mode de détection tactile ; si tel est le cas, commander le capteur pour qu'il pénètre dans le mode de détection tactile pour détecter un contact de l'objet ; sinon, commander le capteur pour qu'il se maintienne dans le mode de détection de proximité. Le procédé selon la présente invention peut réduire efficacement un faux déclenchement de touches fonctionnelles sur le panneau tactile et des opérations de commande de véhicule incorrectes provoquées par le faux déclenchement, et ne nécessite pas l'agencement de capteurs de proximité et de câblages supplémentaires, ce qui permet de réduire le coût.
PCT/CN2023/121584 2022-09-30 2023-09-26 Système et procédé de détection tactile WO2024067592A1 (fr)

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Publication number Priority date Publication date Assignee Title
US20080246723A1 (en) * 2007-04-05 2008-10-09 Baumbach Jason G Integrated button activation sensing and proximity sensing
CN102455823A (zh) * 2010-10-15 2012-05-16 罗技欧洲公司 具有使用接近检测模式的低功率模式的双模式触摸板
CN208277984U (zh) * 2016-12-14 2018-12-25 佛吉亚内饰工业公司 车辆的电气组件和车辆的内饰件
CN115543123A (zh) * 2022-09-30 2022-12-30 延锋国际汽车技术有限公司 触摸检测方法和系统

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080246723A1 (en) * 2007-04-05 2008-10-09 Baumbach Jason G Integrated button activation sensing and proximity sensing
CN102455823A (zh) * 2010-10-15 2012-05-16 罗技欧洲公司 具有使用接近检测模式的低功率模式的双模式触摸板
CN208277984U (zh) * 2016-12-14 2018-12-25 佛吉亚内饰工业公司 车辆的电气组件和车辆的内饰件
CN115543123A (zh) * 2022-09-30 2022-12-30 延锋国际汽车技术有限公司 触摸检测方法和系统

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