TWI858916B - Interactive device with identity verification function - Google Patents

Abstract

An interactive device with identity verification function, wherein a sensing module can be operated to approach or touch a touch display. When the sensing module approaches the touch display, a central control unit compares the identification information in the sensing module to perform identity verification to prevent a counterfeit sensing module from interacting with the touch display. If the sensing module passes the identity verification and when the sensing module touches the touch display, the central control unit compares the identification information in the sensing module to perform identity verification. When the touch display is touched, the touch display senses a touch point image generated by the sensing module and generates a corresponding touch signal to the central control unit. The central control unit calculates the relevant information of the touch point image through an algorithm and compares it to obtain a service instruction corresponding to the touch point image, and controls the touch display to display an image content accordingly to achieve an interactive effect.

Description

Interactive device with identity verification function

The present invention relates to an interactive device, and in particular to an interactive device with an identity verification function.

With the development of technology, users in the real world can interact with objects in the digital world (virtual world). For example, users can wear a virtual reality (VR) device on their heads, and can see a virtual world through the VR device, and then operate other auxiliary devices (such as a control handle) to interact with objects in the virtual world. Alternatively, a display device can project a three-dimensional image, and users can directly see the three-dimensional image with their naked eyes and interact with the three-dimensional image. Therefore, in the digital age where concepts such as Web3.0 and the metaverse have been proposed, the interactive devices or methods of physical objects and digital information are gradually gaining attention from modern people.

However, in the digital age, because the transmission speed of digital information is faster than traditional paper methods, it brings convenience while making modern people pay more attention to the security of personal information. However, most of the existing interactive devices are only used to interact with digital information, and the authentication and protection of users' digital identities are still insufficient, resulting in the problem of users' digital identities being stolen or abused.

In view of this, the present invention proposes an interactive device with identity verification function, comprising: a sensing module, comprising: a carrier; a command generating unit, disposed on the carrier, for a user to electrically contact to generate a touch point image; and a near field communication tag, disposed on the carrier, having identification information; a touch display, interacting with the sensing module, comprising: a touch unit, sensing the touch point image to generate a touch signal in response; a near field communication reader, used to read the near field communication tag the identification information; and a display unit; a storage unit storing a plurality of identity information, a plurality of coded images and a plurality of service instructions, wherein each of the coded images includes a comparison touch point quantity information, a comparison area information and a comparison perimeter information, and each of the coded images corresponds to each of the service instructions; and a central control unit electrically connected to the touch unit, the near field communication reader, the display unit and the storage unit to receive the touch signal and the identification information; wherein, when the sensing module enters the near field communication When the touch signal is within a sensing range of the reader, the central control unit compares the identification information with the plurality of identity information; if one of the identity information corresponding to the identification information is matched from the plurality of identity information, the display unit is controlled to display a successful identity verification message, and the central control unit calculates a touch point quantity information, an area information and a perimeter information of the touch point image according to the touch signal and an algorithm, and then compares the touch point quantity information, the area information and the perimeter information with each of the plurality of encoded images respectively. The comparison touch point quantity information, the comparison area information and the comparison perimeter information are compared to compare one of the coded images corresponding to the touch point image from the plurality of coded images, wherein the central control unit controls the display unit to display an image content according to the service instruction corresponding to the compared coded image and the compared identity information; if one of the identity information corresponding to the identification information is not compared from the plurality of identity information, the display unit is controlled to display an identity verification error message.

The sensor module in the interactive device with identity verification function of the present invention can be operated to approach or touch the touch display. When the sensor module enters a sensing range of the near field communication reader, the central control unit performs an identity verification function to confirm whether the identification information in the sensor module is a legitimate identification element of the interactive device, thereby preventing a counterfeit sensor module from interacting with the touch display. If the sensor module is a legitimate When the sensing module contacts the touch display, the touch display senses the touch point image generated by the command generation unit and generates the touch signal to the central control unit. The central control unit calculates the relevant information of the touch point image through an algorithm and compares it to obtain the service instruction corresponding to the touch point image, and controls the touch display to display an image content to achieve the interactive effect.

10:Sensor module

11: Carrier

12: Command generation unit

120: User contacts the electrode part

121: Multiple electrode pads

122: Line

13: Near Field Communication Tag

130:RF chip

131: Sensing antenna

20: Touch display

21: Touch unit

22: Near Field Communication Reader

220: Reader antenna

23: Display unit

24: Viewing area

240: Sensing area

25: Ink area

30: Central control unit

40: Storage unit

A1: First coordinate

A2: Second coordinate

A3: The third coordinate

A4: The fourth coordinate

O: Center of gravity coordinates

S1: Touch point image

S2: Identification information

S3: Touch signal

V: unit vector

x: horizontal axis

y: vertical axis

Figure 1: Circuit block diagram of the interactive device with identity verification function of the present invention.

Figure 2: Schematic diagram of the appearance of the first embodiment of the sensing module of the present invention.

Figure 3: Schematic diagram of the appearance of the second embodiment of the sensing module of the present invention.

Figure 4: Schematic diagram of the appearance of the touch display in the present invention.

Figure 5: Schematic diagram of the interaction between the sensing module and the touch display in the present invention.

Figure 6: Schematic diagram of the central control unit in the present invention calculating the touch point quantity information, area information and perimeter information.

In order to understand the technical features and practical effects of the present invention in detail and to implement it according to the content of the invention, the following is a detailed description of the embodiments shown in the figure:

Please refer to Figure 1. The present invention is an interactive device with identity verification function, including a sensing module 10, a touch display 20, a central control unit 30 and a storage unit 40. The term "interactive" means that the sensing module 10 can approach or touch the touch display 20 according to the user's operation, and the touch display 20 will generate an interactive image accordingly. This part will be further explained in the following text with the help of the diagram. First, the hardware structure of the sensing module 10 and the touch display 20 is used to explain the signal transmission relationship of each component.

Please refer to Figure 2, which is a schematic diagram of the appearance of the sensing module 10. The sensing module 10 includes a carrier 11, a command generating unit 12 and a near field communication tag 13 (NFC Tag). The carrier 11 is used for the command generating unit 12 and the near field communication tag 13 to be set. In one embodiment of the present invention, the carrier 11 is in the form of a card, and in another embodiment of the present invention, the carrier 11 is in the form of a seal as shown in Figure 3. In addition to the above two embodiments, the carrier 11 can also be designed according to the application scenario of the present invention, and is not limited thereto.

The instruction generating unit 12 is disposed on the carrier 11 for a user to electrically contact to generate a touch point image S1 as shown in FIG1 . Specifically, the instruction generating unit 12 includes a user contact electrode portion 120 and a plurality of electrode pads 121 . The user contact electrode portion 120 is for the user to electrically contact. The plurality of electrode pads 121 are distributed on the carrier 11 in a specific shape, and the plurality of electrode pads 121 are electrically connected to the user contact electrode portion 120 through a plurality of circuits 122 . The user contact electrode portion 120 and the plurality of electrode pads 121 are both electrically conductive.

For example, when the carrier 11 is a card as mentioned above, the user contact electrode portion 120 may be an electrode pad disposed on the card. When the user touches the user contact electrode portion 120, the charge on the user's body will be transferred to the plurality of electrode pads 121 through the plurality of lines 122, and the plurality of electrode pads 121 with charge and distributed in the specific shape will form The touch point image S1; or as shown in FIG3, when the carrier 11 is a stamp, the plurality of electrode pads 121 are arranged on the bottom surface of the stamp, and the user contact electrode portion 120 can be a metal grip portion of the stamp. When the user grasps the user contact electrode portion 120, the charge on the user's body will be transferred to the plurality of electrode pads 121 to generate the touch point image S1.

The NFC tag 13 is disposed on the carrier 11. As shown in FIG. 1 , the NFC tag 13 has an identification information S2, which is a unique identification code (UID) of the NFC tag 13. Specifically, as shown in FIG. 2 , the NFC tag 13 includes an RF chip 130 and a sensing antenna 131. The RF chip 130 is electrically connected to the sensing antenna 131. The RF chip 130 is used to store and process signals, and the sensing antenna 131 is used to receive and transmit signals. The RF chip 130 may include a memory, which stores the identification information S2.

Please refer to FIG. 1 . The touch display 20 includes a touch unit 21, a near field communication reader 22 and a display unit 23. The touch unit 21 can sense the touch point image S1 to generate a touch signal S3 in response. The near field communication reader 22 is used to read the identification information S2 of the near field communication tag 13. The display unit 23 is used to display an image content. The hardware architecture of the touch display 20 is as follows. According to common knowledge in the technical field, in short, the touch display 20 can be formed by stacking a cover plate, the touch unit 21 and the display unit 23, and as shown in FIG4 , the operation surface (the cover plate) of the touch display 20 has a reserved visible area 24, and an ink area 25 is formed around the visible area 24, wherein a reader antenna 220 of the near field communication reader 22 can be provided on the bottom surface of the ink area 25.

When the user holds the sensing module 10 close to or touches the touch display 20 (when the sensing module 10 enters a sensing range of the NFC reader 22), the reader antenna 220 and the sensing antenna 131 will be connected for communication, and the NFC reader 22 will be able to read the identification information S2 of the NFC tag 13 through the NFC technology. How to read the identification information S2 through the NFC technology is common knowledge in the art. In short, the NFC reader 220 is connected to the sensing antenna 131 through the NFC technology. The signal reader 22 modulates a request signal, and then the reader antenna 220 sends the request signal to the sensing antenna 131. The sensing antenna 131 receives the request signal and sends it to the RF chip 130. The RF chip 130 demodulates the request signal and modulates the identification information S2 into a response signal according to the demodulated request signal and sends it back to the near field communication reader 22. The near field communication reader 22 demodulates the response signal to obtain the content of the identification information S2.

As shown in FIG5 , when the user touches the touch display 20 (the visible area 24) with the sensing module 10, the touch point image S1 is generated because the user touches the electrode portion 120 and the user in electrical contact, so that the touch unit 21 can sense the touch point image S1 to generate a raw data (Raw Data). How the touch unit 21 senses and generates the raw data is common knowledge in the field. In short, the touch unit 21 is provided with a transparent conductive electrode made of indium tin oxide (ITO). The transparent conductive electrode can sense the capacitance change between the touch point image S1 and the touch point image S1 to generate the raw data, and the raw data is the touch signal S3.

Please refer to FIG. 1 again. The central control unit 30 is the information processing core of the interactive device and has the ability to process and compare information. The central control unit 30 may be, for example, a microprocessor (MCU). The central control unit 30 is electrically connected to the near field communication reader 22 and the touch unit 21 to receive the identification information S2 and the touch signal S3. The display unit 23 can be controlled to display the image content. In addition, the central control unit 30 is electrically connected to the storage unit 40. The central control unit 30 can read the information in the storage unit 40 or write the information into the storage unit 40. The storage unit 40 can be a memory and store multiple identity information, multiple encoded images and multiple service instructions.

Each of the identity information is a unique identification code information, which means that different identity information represents a different user identity. Specifically, the touch display 20 can interact with different sensing modules 10. The identification information S2 (unique identification code) of different sensing modules 10 can be written and stored in the storage unit 40 in advance, so that the identification information S2 can be compared and identified by the central control unit 30; each of the coded images includes a comparison touch point quantity information, a comparison area information, and a comparison area information. Information and a comparison perimeter information, and a coded image corresponds to a service instruction. As mentioned above, the touch display 20 can interact with different sensing modules 10, and different sensing modules 10 have different touch point images S1. The touch point quantity information, area information and perimeter information of different touch point images S1 (specific shapes) can be stored in the storage unit 40 as a comparison touch point quantity information, a comparison area information and a comparison perimeter information, respectively.

For example, a first touch point image is in the shape of a triangle. Assuming that the area and perimeter of the triangle are 10 (square unit, for example, centimeters squared) and 11 (length unit, for example, centimeters), the relevant information of the first touch point image is stored in the storage unit 40 as a first coded image. Then, the comparison touch point quantity information, the comparison area information and the comparison perimeter information of the first coded image are 3 (pieces), 10 (centimeter squared) and 11 (centimeters), respectively, and the first coded image corresponds to a first service instruction, wherein the comparison touch point quantity information The reason why the signal is 3 is that a triangle has three vertices; or the shape of a second touch point image is a quadrilateral. Assuming that the area and perimeter of the quadrilateral are 18 (square unit, for example, cm2) and 15 (length unit, for example, cm), the relevant information of the second touch point image is stored in the storage unit 40 as a second coded image. Then, the comparison touch point quantity information, comparison area information and comparison perimeter information of the second coded image will be 4 (pieces), 18 (cm2) and 15 (cm), respectively. The second coded image corresponds to a second service instruction.

The central control unit 30 can perform a comparison based on the information stored in the storage unit 40. When the central control unit 30 receives the identification information S2, the central control unit 30 reads the plurality of identity information in the storage unit 40 to compare one of the identity information corresponding to the identification information from the plurality of identity information. When the central control unit 30 receives the touch signal S3, the central control unit 30 calculates the touch point quantity information, the area information and the perimeter information of the touch point image S1 based on the touch signal S3 and an algorithm. The touch point quantity information, the area information and the perimeter information are then compared with the comparison touch point quantity information, the comparison area information and the comparison perimeter information of each of the plurality of coded images, so as to compare one of the coded images corresponding to the touch point image from the plurality of coded images, and then obtain the corresponding service instruction from the compared coded image. How the central control unit 30 executes the algorithm to calculate the touch point quantity information, the area information and the perimeter information of the touch point image S1 will be further explained with diagrams later.

In actual use, first, when the user holds the sensing module 10 close to or touches the touch display 20 (when the sensing module 10 enters a sensing range of the near field communication reader 22), the central control unit 30 will perform an identity verification function to confirm whether the identification information (unique identification code) in the sensing module 10 is a legitimate identification element of the interactive device. If the corresponding unique identification code can be matched from the multiple identity information, the central control unit 30 will perform an identity verification function to confirm whether the identification information (unique identification code) in the sensing module 10 is a legitimate identification element of the interactive device. If one of the identity information in the identification information indicates that the sensing module 10 is a legitimate identification element, the central control unit 30 controls the display unit 23 to display an identity verification success message; if one of the identity information corresponding to the identification information cannot be matched from the multiple identity information, it indicates that the sensing module 10 is not a legitimate identification element, and the central control unit 30 controls the display unit 23 to display an identity verification error message.

If the sensing module 10 is a legitimate identification element and the user continues to hold the sensing module 10 close to the touch display 20, when the sensing module 10 touches the touch display 20 (the visible area 24), the touch display 20 will transmit the touch signal S3 to the central control unit 30, so that the central control unit 30 performs information processing and comparison to match the coded image corresponding to the touch point image S1. Then, the central control unit 30 controls the display unit 23 to display the image content according to the service instruction corresponding to the matched coded image and the matched identity information.

For example, as mentioned above, the sensing module 10 is in the form of a seal, and the service instruction corresponding to the sensing module 10 is "display the digital signature corresponding to the sensing module 10", wherein the digital signature is stored in the storage unit 40; when the owner of the digital signature touches the sensing module 10 (the seal) on the touch display 20, the central control unit 30 performs information comparison to confirm that the sensing module 10 (the seal) is a digital signature. The identification information S2 of the sensing module 10 and its corresponding service command are used to control the display unit 23 to display the digital signature. This interactive process is similar to the traditional process of printing on paper. The difference is that the interactive device of the present invention can achieve an interactive effect between a physical object and digital information. The physical object refers to the sensing module 10, and the digital information is the digital signature displayed on the touch display 20.

Regarding how the central control unit 30 calculates the touch point quantity information, the area information and the perimeter information of the touch point image S1 according to the touch signal S3 and the algorithm, first, the touch signal S3 includes a plurality of peak signals, which are generated when the plurality of electrode pads 121 touch the touch unit 21, and the central control unit 30 can obtain the coordinates of the plurality of touch points when the plurality of electrode pads 121 touch the touch unit 21 according to the plurality of peak signals to obtain the touch point image S1. Point quantity information; for example, the number of the plurality of electrode pads 121 is four, as shown in FIG6 , the plurality of electrode pads 121 contact the touch unit 21 to generate four peak signals, the coordinates of the four peak signals represent the coordinates of the plurality of touch points, which are a first coordinate A1, a second coordinate A2, a third coordinate A3 and a fourth coordinate A4, and the values of the coordinates of the plurality of touch points are (x1, y1), (x2, y2), (x3, y3) and (x4, y4), and the touch point quantity information is 4.

Next, the central control unit 30 calculates a sorting relationship of the coordinates of the plurality of touch points. The reason for calculating the sorting relationship first is that if the perimeter information is calculated without first obtaining the sorting relationship, the perimeter information may be incorrect because it includes the length of a diagonal line of the touch point image S1. The calculation method of the sorting relationship is as follows:

其中，n表示該複數觸控點座標的數量，如前所述，該複數觸控點座標共有4個，則上述公式中的n為4而將該第一座標A1~該第四座標A4代入公式中。 1. First, the central control unit 30 calculates a center of gravity coordinate O according to the complex point coordinates. The value of the center of gravity coordinate is (xo, yo), and the calculation method is as follows:

Wherein, n represents the number of the plurality of touch point coordinates. As mentioned above, there are 4 plurality of touch point coordinates in total. Then, n in the above formula is 4 and the first coordinate A1 to the fourth coordinate A4 are substituted into the formula.

2. Create a unit vector V from the barycentric coordinate O along a horizontal axis x or a vertical axis y. If the unit vector is created along the horizontal axis x, the value of the unit vector V is (1,0). If the unit vector is created along the vertical axis y, the value of the unit vector V is (0,1). The following will take the barycentric coordinate O along the horizontal axis x as an example for explanation.

3. Calculate the complex coordinate vector of the center of gravity coordinate O and the complex touch point coordinates. As mentioned above, there are 4 complex touch point coordinates. Using the vector calculation method, the complex coordinate vectors are:

4. Calculate the angle between each coordinate vector and the unit vector V using an inner product formula. The inner product formula is as follows:

After transformation, θ=cos ^-1 [( a ． b )/(| a || b |)].

5. Compare the size relationship of the angles to determine the sorting relationship of the multiple touch point coordinates, wherein the sorting relationship is the relative relationship of the multiple touch point coordinates in a clockwise or counterclockwise direction. As shown in FIG6, taking the third coordinate A3 as a starting point as an example, the sorting relationship of the multiple touch point coordinates in a counterclockwise direction is (A3, A1, A2, A4).

因為該行列式公式的計算結果可能為一負值，而面積應是一正值，故取該行列式公式的計算結果之絕對值表示該面積資訊。 When the central control unit 30 calculates the order relationship of the plurality of touch point coordinates, the area information and the perimeter information of the touch point image S1 can be calculated. First, the area information can be obtained by substituting the plurality of touch point coordinates according to the order relationship into the following one-column formula:

Because the calculation result of the determinant formula may be a negative value, but the area should be a positive value, the absolute value of the calculation result of the determinant formula is used to represent the area information.

The perimeter information can be obtained by first knowing the multiple side lengths of the touch point image S1 according to the sorting relationship, and then adding the multiple side lengths. As mentioned above, the multiple touch point coordinates are sorted in a counterclockwise direction as (A3, A1, A2, A4), and the calculation method of the multiple side lengths is:

Please refer to FIG. 5 again. In one embodiment of the present invention, the display unit 23 pre-displays a plurality of sensing areas 240 in the visible area 24. The plurality of sensing areas 240 may be, for example, a plurality of graphical user interfaces (GUIs). The user may contact the sensing module 10 with one of the plurality of sensing areas 240 to generate an interactive image corresponding to the sensing area 240. Each of the sensing areas 240 has a coordinate range. The coordinate range of 40 is stored in the storage unit 40. When the sensing module 10 contacts the touch unit 21, the central control unit 30 calculates the center coordinates of the multiple touch point coordinates as described above, and compares the center coordinates with the coordinate ranges of each sensing area to determine whether the center coordinates are within one of the coordinate ranges, and further determine whether the sensing module interacts with one of the multiple sensing areas.

In this embodiment, the coordinate range of each sensing area 240 corresponds to each identity information. When the sensing module 10 interacts with one of the plurality of sensing areas 240, the central control unit 30 compares the identification information S2 of the sensing module to see whether it matches the identity information of the sensing area 240. As mentioned above, if the sensing module 10 is in the form of a seal, the plurality of sensing areas 240 are a plurality of signature frames displayed in the visible area 24, and each signature frame is for a different signatory to sign (i.e., each coordinate range corresponds to each identity information). When a signatory (user) holds the sensing module 10 in contact with the seal, the central control unit 30 compares the identification information S2 of the sensing module to see whether it matches the identity information of the sensing area 240. When the central control unit 30 detects one of the multiple sensing areas 240, the central control unit 30 confirms whether the sensing module 10 has the authority to interact with the sensing area 240 through comparison. If the sensing module 10 does not have the authority to interact with the sensing area 240, the display unit 23 displays an error prompt message. For example, the interactive method here is to display a digital signature in the signature box. If the signatory operates the sensing module 10 to touch the signature box that he cannot sign, the display unit 23 will display an error prompt message that he does not have the signing authority. Otherwise, the digital signature corresponding to the sensing module 10 is displayed in the signature box (the sensing area 240).

The present invention provides an interactive device with an identity verification function. The sensor module 10 has a command generation unit 12 and a near field communication tag 13. The sensor module 10 can be operated to approach or touch a touch display 20. When the sensor module 10 approaches the touch display 20 (when the sensor module 10 enters a sensing range of a near field communication reader 22), a central control unit 30 performs an identity verification function to confirm whether the identification information S2 (unique identification code) in the sensor module 10 is a legitimate identification element of the interactive device, thereby preventing a counterfeit sensor module 10 from being used. The sensing module interacts with the touch display 20; if the sensing module 10 is a legal identification element and when the sensing module 10 contacts the touch display 20, the touch display 20 senses a touch point image S1 generated by the instruction generating unit 12, and generates a corresponding touch signal S3 to the central control unit 30. The central control unit 40 calculates the relevant information of the touch point image S1 through an algorithm and compares it to obtain a service instruction corresponding to the touch point image, and controls the touch display 20 to display an image content accordingly to achieve the effect of interaction.

In summary, the above only records the implementation methods or examples of the technical means adopted by the present invention to solve the problem, and is not used to limit the scope of implementation of the present invention. That is, all equivalent changes and modifications that are consistent with the scope of the patent application of the present invention or made according to the scope of the patent of the present invention are covered by the scope of the patent of the present invention.

10:Sensor module

12: Command generation unit

13: Near Field Communication Tag

20: Touch display

21: Touch unit

22: Near Field Communication Reader

23: Display unit

30: Central control unit

40: Storage unit

S1: Touch point image

S2: Identification information

S3: Touch signal

Claims (8)

An interactive device with identity verification function comprises: a sensing module, comprising: a carrier; an instruction generating unit, arranged on the carrier, for a user to electrically contact to generate a touch point image; and a near field communication tag, arranged on the carrier, having identification information; a touch display, interacting with the sensing module, comprising: a touch unit, sensing the touch point image to generate a touch signal in response; a near field communication reader, used to read the identification information of the near field communication tag; and a display unit; a storage unit storing a plurality of identity information, a plurality of coded images and a plurality of service instructions, wherein each of the coded images includes a comparison touch point quantity information, a comparison area information and a comparison perimeter information, and each of the coded images corresponds to each of the service instructions; and a central control unit electrically connected to the touch unit, the near field communication reader, the display unit and the storage unit to receive the touch signal and the identification information; wherein when the sensing module enters a sensing position of the near field communication reader, When the identification information is within the corresponding range, the central control unit compares the identification information with the multiple identity information; if one of the identity information corresponding to the identification information is compared from the multiple identity information, the display unit is controlled to display an identity verification success message, and the central control unit calculates a touch point quantity information, an area information and a perimeter information of the touch point image according to the touch signal and an algorithm, and then compares the touch point quantity information, the area information and the perimeter information with the comparison information of each of the multiple encoded images respectively. The touch point quantity information, the comparison area information and the comparison perimeter information are compared to compare one of the coded images corresponding to the touch point image from the plurality of coded images, wherein the central control unit controls the display unit to display an image content according to the service instruction corresponding to the compared coded image and the compared identity information; if one of the identity information corresponding to the identification information is not compared from the plurality of identity information, the display unit is controlled to display an identity verification error message. The interactive device with identity verification function as described in claim 1, wherein the instruction generating unit comprises: a user contact electrode portion for the user to electrically contact; and a plurality of electrode pads, each of the touch point electrode pads being electrically connected to the user contact electrode portion; wherein when the user contact electrode portion is touched by the user, the plurality of electrode pads will carry the charge of the user and generate the touch point image. As described in claim 2, the interactive device with identity verification function, wherein the central control unit first converts the coordinates of the multiple touch points of the touch point image to obtain the touch point quantity information of the touch point image, and then calculates a sorting relationship of the multiple touch point coordinates through the algorithm and calculates the area information and perimeter information of the multiple touch point image according to the sorting relationship. An interactive device with identity verification function as described in claim 3, wherein the touch signal includes a plurality of peak signals, the plurality of peak signals are generated when the plurality of electrode pads contact the touch unit, and the coordinates of the plurality of peak signals are the coordinates of the plurality of touch points. An interactive device with identity verification function as described in claim 3, wherein a center coordinate of the multiple touch point coordinates is first calculated, and then a unit vector is established along a horizontal axis or a vertical axis from the center coordinate and the multiple coordinate vectors of the center coordinate and the multiple touch point coordinates are calculated, and the angle between each coordinate vector and the unit vector is calculated through an inner product formula, and the angle between each coordinate vector and the unit vector is compared to obtain the sorting relationship. An interactive device with identity verification function as described in claim 3, wherein the area information is obtained by substituting the coordinates of the plurality of touch points into a row-column formula according to the sorting relationship. As described in claim 3, the interactive device with identity verification function, wherein the display unit pre-displays a plurality of sensing areas, and the storage unit stores a coordinate range of each of the sensing areas. When the sensing module contacts the touch display, the central control unit calculates a center coordinate of the coordinates of the plurality of touch points, and compares whether the center coordinate is within one of the coordinate ranges to determine whether the sensing module interacts with one of the plurality of sensing areas. As described in claim 7, the interactive device with identity verification function, wherein each coordinate range corresponds to each identity information, and when the sensing module interacts with one of the multiple sensing areas, the central control unit compares the identification information of the sensing module to see whether it matches the identity information of the sensing area.