CN115282595A - Grasping force detection method, interaction method and handheld device - Google Patents

Abstract

The invention discloses a grasping force detection method, an interaction method and a hand-held device, comprising: configuring a touch sensor on the hand-held device that can change displacement with different grasping force; The touch sensor is separated from the sensing ground by a distance; the touch sensor is used to sense the change of the distance between the touch sensor and the sensing ground, and a corresponding sensing signal is generated; according to the sensing signal, the grasping force exerted on the handheld device is identified. The invention uses the touch sensor to cooperate with the inductive ground to detect the grasping force, and utilizes the characteristics of the touch sensor's large data output range and good continuity to realize the continuous detection of the grasping force, and solves the problem that the traditional flexible film pressure sensor cannot be effectively used. Identify problems with continuous changes in grip strength. Adjust the vibration intensity of the vibration motor in the handheld device according to the force change detected by the touch sensor, so as to realize the vibration feedback of the grasping force, which can improve the user experience.

Description

A grip strength detection method, an interaction method, and a handheld device

technical field

The invention belongs to the technical field of handheld devices, and in particular relates to a detection method and an interaction method for sensing the grip force applied to a handheld device.

Background technique

In the field of games, especially in the field of virtual reality games, game users have increasingly urgent requirements for immersion. At present, the gamepad, as the main tool for users to control the game process in virtual reality games, also needs to have the interactive function of feeding back the corresponding intensity vibration according to the user's grasping force. Changes in grip strength. In response to such user needs, it is necessary to develop a method that can effectively detect the user's grip strength.

In order to detect the user's grasping strength, the existing game controllers are mostly realized by arranging a flexible film pressure sensor on the outer shell of the game controller. When the user grasps the gamepad, pressure will be applied to the flexible film pressure sensor at the same time. According to the pressure detected by the flexible film pressure sensor, the user's grasping strength can be identified, and then according to the different grasping strength, the installation The vibration motor in the game handle adjusts the vibration intensity, and then realizes the vibration feedback to the user's grasping strength.

The problems of using the above-mentioned grasping strength detection method on the gamepad are mainly reflected in:

Firstly, the shell of the gamepad needs to be disassembled to meet the assembly requirements of the flexible film pressure sensor on the shell. In this way, on the one hand, the complexity of product structure design and assembly difficulty are increased; on the other hand, the split structure reduces the dustproof performance of the casing, and also affects the appearance of the product to a certain extent.

Second, the flexible film pressure sensor needs a relatively large stroke change when detecting pressure changes, and the resistance value of the film flexible resistor in the sensor changes greatly in the initial stage of grasping, and the resistance value changes gradually in the latter stage of grasping , cannot effectively identify more dynamic changes, therefore, the effect on the continuity of dynamic detection is poor. This is reflected in the vibration feedback, which will lead to the problem that the gamepad cannot give vibration feedback with continuously changing intensity according to the smooth change of the user's grip strength, thus, to a certain extent, it will affect the user's immersive experience.

The above information disclosed in this background technology is only for enhancement of understanding of the background technology of this application, and therefore it may include information that does not constitute the prior art that is already known to a person of ordinary skill in the art.

Contents of the invention

Based on the touch sensor, the present invention proposes a grip strength detection method to solve the problem that the flexible film pressure sensor cannot effectively identify the continuous change of grip strength.

In order to solve the above-mentioned technical problems, the present invention adopts the following technical solutions to achieve:

In one aspect, the present invention proposes a method for detecting grip strength, including: disposing a touch sensor capable of changing displacement with different grip strength on the handheld device; The touch sensor is spaced apart from a sensing ground at a certain distance; the touch sensor is used to sense the distance change between the touch sensor and the sensing ground, and a corresponding sensing signal is generated; The grip strength on the device.

In some embodiments of the present application, in order to improve the accuracy of grasping force detection, a shielding formation can be configured to shield the interference of the touch sensor from the hands and other media grasped on the handheld device, so that The sensing signal generated by the touch sensor only reflects the change of the distance between the touch sensor and the sensing ground.

In some embodiments of the present application, as an installation method of the touch sensor and the shielding formation on the handheld device, the handheld device can be configured with a shell that can deform when grasped; the touch sensor It is arranged on the inner side of the housing, so that the touch sensor can be displaced with the deformation of the housing; the shielding ground layer is arranged between the housing and the touch sensor, so as to shield the medium from the outside of the housing against the touch sensor. Interference: the inductive ground is arranged inside the housing and its position is fixed to form a reference position for distance detection between the touch sensor and the inductive ground. With this structural design, there is no need to structurally disassemble the shell of the handheld device, so the structural design is simple, the assembly difficulty is low, and the complete shell structure can ensure its dustproof performance, which is conducive to improving the overall aesthetics of the handheld device. However, its disadvantage is that it will affect the sensitivity of the touch sensor to a certain extent. The user's grip on the shell of the handheld device should not be too small, and the shell of the handheld device must be deformed.

In some embodiments of the present application, as another installation method of the touch sensor and the shielding formation on the handheld device, the shell of the grip area of the handheld device can be structurally disassembled to form a The installation position of the touch sensor and the shielding formation; the touch sensor and the shielding formation are assembled at the installation position, and the shielding formation is located on the outside, so as to shield the medium from outside the handheld device against the touch The interference generated by the control sensor; the inductive ground is arranged inside the housing, and its position is fixed to form a reference position for distance detection between the touch sensor and the inductive ground. With this structural design, there is no limit to the material selected for the shell of the handheld device, and the touch sensor can also detect changes in the force when the force of the grip is relatively small. The disadvantage is that it will increase the complexity of the structural design of the shell and the difficulty of assembly, and will reduce the dustproof performance of the shell to a certain extent.

In some embodiments of the present application, the vibration motor or the battery shell arranged inside the shell of the handheld device can be selected as the induction ground to simplify the structural design; of course, it can also be inside the shell of the handheld device The copper foil is specially configured as the sensing ground to meet the sensing requirements of the touch sensor.

In another aspect, the present invention also proposes an interaction method, including: configuring a touch sensor on the handheld device that can change displacement with different grip strength; The touch sensor is separated from the sensing ground by a certain distance; the touch sensor is used to sense the distance change between the touch sensor and the sensing ground, and a corresponding sensing signal is generated; according to the sensing signal, the Gripping strength; perform corresponding feedback actions according to the sensing signal to complete the interactive function.

In some embodiments of the present application, the feedback action can be configured as: adjust the vibration intensity of the vibration motor inside the handheld device according to the induction signal, so as to form a vibration feedback proportional to the grip strength on the handheld device, so that The handheld device has an interactive function that can feedback corresponding intensity vibrations according to the user's grip strength, thereby improving the user experience.

In yet another aspect, the present invention also provides a handheld device, including a housing, a touch sensor, an induction ground, and a controller; wherein, the housing includes a gripping area; the touch sensor is mounted on the housing, And the displacement can be changed according to the gripping force applied to the shell; the inductively assembled inside of the shell, and a certain distance from the touch sensor in the displacement direction of the touch sensor; The controller is assembled on the inner side of the shell, receives the sensing signal generated by the touch sensor in response to the change of the distance between it and the sensing ground, and recognizes the grip applied on the handle according to the sensing signal. Grip strength.

In some embodiments of the present application, in order to simplify the shell structure of the handheld device, the shell can be designed as a shell that can deform when being grasped; the touch sensor is arranged on the inside of the shell, so that It can be displaced with the deformation of the shell; the touch sensor can be a capacitive touch sensor or an inductive touch sensor, including an electrode sheet and a touch chip, and the electrode sheet is arranged in the direction of the sensing ground, and the The touch chip is arranged towards the shell; a shielding ground layer can be set between the shell and the touch chip of the touch sensor to shield the medium from the outside of the shell (such as the hand grasped on the shell or the dirt attached to the shell) Objects, etc.) interfere with the touch sensor, so that the sensing signal generated by the touch sensor only reflects the change in the distance between the touch sensor and the sensing ground, improving the accuracy of the grip force detection of the handheld device.

In some embodiments of the present application, in order to improve the sensitivity of the handheld device to the detection of grip strength, an installation position for installing the touch sensor and the shielding formation may be formed in the grip area of the housing, and the installation position It should penetrate from the outside of the shell to the inside of the shell; the touch sensor and the shielding ground layer are assembled at the installation position, and the shielding ground layer is arranged on the outside, so that the medium from the outside of the handle can be shielded from the impact on the touch sensor. interference, so that the sensing signal generated by the touch sensor only reflects the change of the distance between the touch sensor and the sensing ground. The touch sensor may be a capacitive touch sensor or an inductive touch sensor, including an electrode sheet and a touch chip, the electrode sheet is arranged toward the direction of the sensing ground, and the touch chip is arranged toward the shielding stratum layout. This structural design enables the touch sensor to detect changes in strength even when the grip strength is relatively small.

In some embodiments of the present application, for a handheld device, a vibration motor and a battery are generally configured inside its casing; the casing of the vibration motor or battery can be used as the induction ground to simplify the operation of the handheld device. Structural design; of course, copper foil can also be specially configured inside the shell of the handheld device as the sensing ground, so as to cooperate with the touch sensor to detect the grip strength.

In some embodiments of the present application, in order to enable the handheld device to have an interactive function that can feed back corresponding intensity vibrations according to the user's grasping force, the controller can be configured to adjust the vibration intensity of the vibration motor according to the recognized grasping force , to form a vibration feedback proportional to the grip strength on the handle to enhance the game experience and immersion.

Compared with the prior art, the advantages and positive effects of the present invention are: the present invention adopts a touch sensor in cooperation with an inductive ground to detect the grasping force exerted on the handheld device. Because the data output range of the touch sensor is large and the continuity is good, it can realize the continuous detection of the user's grasping force, which solves the problem that the traditional flexible film pressure sensor detection method cannot effectively identify the force at the end of the grasp due to the small number of detection force points. Continuous changes in grip strength lead to poor user experience. The intensity change detected by the touch sensor is used to adjust the vibration intensity of the vibration motor in the handheld device, so as to realize the vibration feedback on the grasping force, thereby improving the user experience.

Other features and advantages of the present invention will become more apparent after reading the detailed description of the embodiments of the present invention in conjunction with the accompanying drawings.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings that need to be used in the embodiments. Obviously, the drawings in the following description are some embodiments of the present invention. Those of ordinary skill in the art can also obtain other drawings based on these drawings without any creative effort.

Fig. 1 is the detection schematic diagram of a kind of embodiment of the grasping strength detection method proposed by the present invention;

Fig. 2 is a schematic diagram of the component configuration relationship of an embodiment corresponding to the detection principle shown in Fig. 1;

Fig. 3 is a schematic diagram of the component configuration relationship of another embodiment corresponding to the detection principle shown in Fig. 1;

Fig. 4 is a cross-sectional schematic view of an embodiment of the handheld device proposed by the present invention.

Detailed ways

The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings.

It should be noted that, in the description of the present invention, the terms "inner", "outer" and other terms indicating direction or positional relationship are based on the direction or positional relationship shown in the drawings, which are only for the convenience of description, rather than indicating Or imply that the device or element must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as limiting the invention.

In addition, it should be noted that in the description of the present invention, the terms "installation", "connection" and "connection" should be interpreted in a broad sense unless otherwise specified and limited. For example, it can be a fixed connection, a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary; it can be the internal communication of two components . Those skilled in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

In this embodiment, a gamepad is used as a handheld device as an example to illustrate the specific process design of the grip strength detection method and the specific structural design of the handheld device.

In some current gamepads, touch sensors are configured to detect the user's touch status at certain specified positions, and then respond to certain specific operation instructions of the user. This type of touch sensor is generally an inductive touch sensor or a capacitive touch sensor, and specifically includes main components such as an electrode sheet and a touch chip. When the touch sensor is used to detect the touch state of the human hand, the electrode sheet of the touch sensor is usually arranged towards the outer shell of the gamepad, and the touch chip is towards the inside of the outer shell. When a human hand approaches the electrode sheet of the touch sensor, the parameters of the capacitance or inductance inside the touch chip will change. The touch chip can output a continuously changing value from 0 to 65535 according to the parameter change. An appropriate threshold can be set. When the output value of the touch chip is greater than the set threshold, it means that the human hand has performed a touch operation, and the system executes a specific process in response to the user's operation.

The prior art utilizes the touch sensor to detect the touch state of the human hand at a specific position, rather than the strength. In this embodiment, this type of touch sensor is transferred to the strength detection of the handle gripped by the human hand. Since the detection principle is different from the traditional touch detection, it is necessary to design a new solution to the new technical problem (grip strength detection problem) Program.

As shown in Figure 1, in order to enable the touch sensor to detect the grip strength of the handle, firstly, the touch sensor is configured to change its displacement according to the grip strength of the handle; secondly, in the displacement direction of the touch sensor, the configuration and The touch sensor is separated from the sensing ground by a certain distance, so that when the touch sensor is displaced according to the gripping force of the handle, the distance between the touch sensor and the sensing ground will change. When the distance between the touch sensor and the sensing ground changes, the sensing signal generated by the touch sensor will change accordingly, so that the magnitude of the grip applied to the handle can be identified according to the change of the sensing signal , so as to achieve the purpose of detecting the grip strength of the handle.

In order to enable the touch sensor to sense the change of the distance between it and the sensing ground, the electrode sheet of the touch sensor can be arranged in the direction of the sensing ground, and the touch sensor can be triggered by the change of the distance between the electrode sheet and the sensing ground. The parameters of the internal capacitance or inductance of the control chip change, thereby causing the output value of the touch sensor to change. Since the touch sensor can output a continuously changing value from 0 to 65535, it can obtain a continuously changing grip strength, thereby avoiding the poor continuity of the detection strength change and the product The problem of poor consistency.

In order to solve the problem that the human hand will be wrongly sensed by the touch sensor when grasping the handle or when there is dirt and other media on the handle, which will affect the normal detection of the grip strength of the handle by the touch sensor. A shielding layer is arranged on the top to shield the interference of the touch sensor from the human hand holding the handle or the dirt on the handle, so that the sensing signal generated by the touch sensor only reflects the distance between the touch sensor and the sensing ground. The distance between the handles changes, thereby ensuring the accuracy of the grip strength detection of the handle.

According to the detected grip strength of the handle, a vibration motor can be configured to realize vibration feedback. That is, the vibration intensity of the vibration motor inside the handle can be adjusted according to the induction signal output by the touch sensor, and then vibration feedback proportional to the grip strength can be formed on the handle to improve user experience.

Based on the above-mentioned principle of detecting the grip strength of the handle, the following two specific structural designs can be proposed in combination with the existing structure of the handle.

Embodiment one

As shown in FIG. 2 , the handle is generally equipped with a shell 21 , and the shell 21 is designed with a material (such as plastic, rubber, etc.) that can deform when being grasped. The shielding layer 22 and the touch sensor 23 are arranged inside the housing 21 , and the electrode pads of the touch sensor 23 face the side away from the housing 21 , and the touch chip of the touch sensor 23 faces the housing 21 . The shielding ground layer 22 is arranged between the shell 21 and the touch chip of the touch sensor 23. Here, the medium from the outside of the shell 21 can be shielded by the shielding ground layer 22 (for example, people's hands grasped on the handle or attached to the handle shell dirt, etc.) on the touch sensor 23 to ensure the accuracy of the touch sensor 23's grip on the handle.

As a preferred embodiment, the shielding ground layer 22 can be pasted on the inner wall of the casing 21, and the pasting position should be within the grasping area of the handle. The touch chip of the touch sensor 23 is pasted on the shielding ground layer 22 so that the touch sensor 23 can be displaced following the deformation of the handle shell 21 . The area of the shielding ground layer 22 is greater than or equal to the surface area of the touch chip of the touch sensor 23 facing the inner wall of the casing 21 to achieve an ideal shielding effect.

The inductive ground 24 is disposed inside the housing 21 , for example, in the inner cavity surrounded by the housing 21 , and is spaced a certain distance from the electrodes of the touch sensor 23 in the displacement direction of the touch sensor 23 . The installation position of the sensing ground 24 in the housing 21 should be kept fixed, so as to provide a reference for the distance sensing of the touch sensor 23 .

In this embodiment, the induction ground 24 can be made of metal plates such as copper foil, and fixed at an appropriate position in the inner cavity surrounded by the outer shell 21 through a bracket installed on the inner wall of the outer shell 21, or for the inner cavity surrounded by the outer shell 21. When a circuit board is arranged in the inner cavity, the induction ground 24 can be mounted on the circuit board through a bracket, so that the distance between the induction ground 24 and the touch sensor 23 is appropriate.

For the game handle, as shown in Figure 4, since the vibration motor 44 and the battery are usually arranged in the inner cavity 45 surrounded by the handle housing 41, the housing of the vibration motor 44 or the battery can be used as the sensor Ground, in cooperation with the touch sensor 43, completes the detection function of the grip strength of the handle. With this structural design, the step of separately laying out a dedicated induction ground can be omitted, so the structure is simple and the implementation is easy.

In the game handle, the touch sensor 43 is pasted on the inner wall of the handle shell 41 through the shielding layer 42 . When the user grasps the game handle, the handle shell 41 is deformed, and the amount of deformation is proportional to the strength of the grip. The greater the user's grasping force, the greater the deformation of the shell 41 , so that the closer the distance between the touch sensor 43 and the shell of the vibration motor 44 , the greater the value corresponding to the induction signal generated by the touch sensor 43 . Conversely, the smaller the strength of the user's grip on the handle, the smaller the deformation of the shell 41, the farther the distance between the touch sensor 43 and the shell of the vibration motor 44, and the smaller the value corresponding to the induction signal generated by the touch sensor 43. . That is, the output value of the touch sensor 43 is directly proportional to the force with which the user grasps the handle. Therefore, the output value of the touch sensor 43 can be used to reflect the force of the grip exerted on the handle.

A controller is arranged on the built-in circuit board of the game handle, or the existing controller on the circuit board is used to receive the induction signal output by the touch sensor 43 to identify the grip strength on the handle. According to the magnitude of the grip strength, the controller can adjust the vibration intensity of the vibration motor 44 to realize the vibration feedback on the grip strength of the handle and complete the interactive function between the handle and the user.

At the same time, the controller can also control the game to enter the corresponding content according to the detected grasping strength of the handle, so as to enhance the user's sense of immersion.

Of course, other interactive ways may also be used to give feedback on the grasping strength of the human hand, for example, performing different control operations, etc., and this embodiment is not limited to the above example.

Using the structural design of Embodiment 1, compared with the traditional detection method using a flexible film pressure sensor, it not only makes the detection of the grip strength of the handle more sensitive, but also does not need to structurally disassemble the shell of the handle in order to install the touch sensor , so the product structure is simple and the assembly difficulty is low. At the same time, the dust-proof capability of the shell can be improved without disassembly of the shell, and the appearance design of the product can be optimized.

Embodiment two

As shown in Figure 3, for some handles, the material of the shell 31 may be very hard, and cannot produce a corresponding degree of deformation according to the change of the grip strength of the human hand; As far as the handle is concerned, arranging the touch sensor 33 on the inner wall of the housing 31 may not meet the design requirements. For this situation, this embodiment proposes a structural design in which the touch sensor 43 and the shielding layer 42 are embedded on the handle shell 31 .

Specifically, the shell 31 of the handle can be structurally disassembled to form a mounting position 35 in the gripping area of the handle. For example, a stepped hole penetrating from the outside of the casing 31 to the inside of the casing 31 may be formed in the gripping area of the casing 31, the touch sensor 33 and the shielding ground layer 32 are installed in the stepped hole, and the shielding ground layer 32 is located on the touch control sensor 33 outside. The top surface of the shielding formation 32 may be flush with the outer surface of the shell 31 or slightly higher than the outer surface of the shell 31 . The outer edge of the shielding formation 32 can be installed on the step formed by the stepped hole, so as to realize the installation and positioning of the shielding formation 32 in the stepped hole. The touch chip of the touch sensor 33 can be pasted on the bottom surface of the shielding ground layer 32, and the electrode sheet of the touch sensor 33 can extend out of the stepped hole and reach the inner cavity surrounded by the shell 31; or, the electrodes of the touch sensor 33 The sheet can also be located in the stepped hole, but it needs to face the inner side of the shell 31 .

The inductive ground 34 is disposed inside the housing 31 , for example, in the inner cavity surrounded by the housing 31 , and is spaced a certain distance from the electrodes of the touch sensor 33 in the displacement direction of the touch sensor 33 . The installation position of the inductive ground 34 in the housing 31 should be kept fixed, so as to ensure that the touch sensor 33 can accurately sense the distance change between the two.

For the game handle, the induction ground 34 may be a separately arranged copper foil or other metal plate, or may be a vibration motor built in the game handle or a casing of a battery.

When the user grasps the outer shell 31 of the handle, the human hand contacts the shielding formation 32 and exerts a downward force, causing the shielding formation 32 to deform and causing the touch sensor 33 to displace. When the user's grip strength increases, the deformation of the shielding formation 32 increases, so that the distance between the touch sensor 33 and the sensing ground 34 becomes closer. At this time, the sensing signal output by the touch sensor 33 corresponds to The value increases. Conversely, when the strength of the user's grip on the handle decreases, the deformation of the shielding formation 32 decreases, so that the distance between the touch sensor 33 and the sensing ground 34 becomes longer. The corresponding value decreases. That is, the output value of the touch sensor 33 is directly proportional to the force with which the user grasps the handle. Therefore, the output value of the touch sensor 33 can be used to reflect the force applied to the handle.

If the handle is a game handle, the controller in the game handle can be used to receive the sensing signal output by the touch sensor 33 to identify the grip strength on the handle. When the user grasps the game handle, the controller can control the vibration of the vibration motor 44 inside the game handle, and can adjust the vibration intensity of the vibration motor 44 according to the strength of the grip, so as to realize the vibration feedback of the game handle to the user's grip strength , to enhance the user's game experience and immersion.

At the same time, the controller can also control the game to enter the corresponding content according to the grip force exerted on the handle, so as to realize the response of the game handle to the user's operation.

Adopting the structural design of Embodiment 2 can improve the sensitivity of the touch sensor to the detection of the grip force of the handle, and can accurately detect changes in the force even under a relatively small grip force, and feedback a small vibration response to the user , good interactivity and stronger game immersion.

The invention uses a touch sensor to detect the grasping strength of a hand-held device, which solves the problem that when the traditional flexible film pressure sensor is used to detect the grasping force of a human hand, due to the small number of detection force points of the flexible film pressure sensor, it is impossible to effectively identify the grasping force at the end of the grasp. The problem of continuous change of grip strength is solved, which in turn significantly improves the user's gaming experience and sense of immersion.

At the same time, since many current handheld devices are equipped with touch sensors for touch detection, applying the grip strength detection technology of the present invention to such handheld devices can effectively control the hardware cost of the product.

Of course, the above descriptions are not intended to limit the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present invention shall also belong to protection scope of the present invention.

Claims (10)

1. A method for detecting the grasping force is characterized in that,

a touch sensor which can change displacement along with different grasping force is configured on the handheld equipment;

configuring an induction ground spaced apart from the touch sensor by a distance in a displacement direction of the touch sensor;

sensing the distance change between the touch sensor and the sensing ground by using the touch sensor, and generating a corresponding sensing signal;

and identifying the gripping force applied to the handheld equipment according to the induction signal.

2. The grip strength detection method according to claim 1,

and configuring a shielding stratum to shield interference of human hands and other media which are held on the handheld equipment to the touch sensor.

3. The method for detecting a grasping strength according to claim 2,

configuring the handheld device with a housing that deforms when gripped;

the touch sensor is arranged on the inner side of the shell, so that the touch sensor can displace along with the deformation of the shell;

the shielding stratum is arranged between the shell and the touch sensor so as to shield interference of media from the outer side of the shell on the touch sensor;

the induction position is arranged at the inner side of the shell and is fixed in position.

4. The method for detecting a grasping strength according to claim 2,

the shell of a handheld device gripping area is structurally disassembled to form a mounting position for mounting the touch sensor and shielding a stratum;

assembling the touch sensor and the shielding stratum at the installation position, positioning the shielding stratum at the outer side, and shielding interference of media from the outside of the handheld device on the touch sensor;

the induction position is arranged at the inner side of the shell and is fixed in position.

5. An interaction method, comprising:

the grip strength detection method according to any one of claims 1 to 4;

and executing corresponding feedback action according to the sensing signal to finish an interaction function.

6. The interaction method of claim 5, wherein the feedback action is:

and adjusting the vibration intensity of a vibration motor in the handheld equipment according to the induction signal so as to form vibration feedback which is in direct proportion to the gripping force on the handheld equipment.

7. A handheld device, comprising:

a housing comprising a gripping area;

the touch sensor is arranged on the shell and can change displacement along with different grasping force applied to the shell;

an inductive ground mounted inside the housing and spaced a distance from the touch sensor in a displacement direction of the touch sensor;

and the controller is assembled at the inner side of the shell, receives a sensing signal generated by sensing the distance change between the touch sensor and the sensing ground, and identifies the gripping force applied to the shell according to the sensing signal.

8. The handheld device of claim 7,

the shell is a shell which can deform when being grasped;

the touch sensor is positioned on the inner side of the shell and is displaced along with the deformation of the shell;

the touch sensor is a capacitive touch sensor or an inductive touch sensor and comprises electrode plates and touch chips, the electrode plates are arranged towards the direction of the induction ground, and the touch chips are arranged towards the shell;

and a shielding stratum is arranged between the shell and the touch chip of the touch sensor and is used for shielding interference of media from the outer side of the shell on the touch sensor.

9. The handheld device of claim 7,

the shell is provided with a mounting position for mounting the touch sensor and shielding the ground layer in a gripping area, and the mounting position penetrates from the outer side of the shell to the inner side of the shell;

the touch sensor and the shielding stratum are assembled at the installation position, and the shielding stratum is positioned at the outer side and used for shielding interference of media from the outside of the handheld device on the touch sensor;

the touch sensor is a capacitive touch sensor or an inductive touch sensor and comprises electrode plates and touch chips, wherein the electrode plates are arranged towards the direction of the induction ground, and the touch chips are arranged towards the shielding ground layer.

10. The handheld device of any one of claims 7 to 9,

a vibration motor and a battery are arranged in the shell;

the induction ground is a shell of the vibration motor or the battery or a copper foil installed inside the shell;

and the controller adjusts the vibration intensity of the vibration motor according to the recognized gripping force so as to form vibration feedback which is in direct proportion to the gripping force on the handheld equipment.

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