Anti-interference low-power consumption identification device

Abstract

The application relates to an anti-interference low-power-consumption identification device, which is especially suitable for chess or jigsaw puzzles. The electrodes of a first unit are used as common excitation to obtain the differential mutual capacitance of a second unit and a third unit. In the case that there are electronic devices or environmental factors around the electrodes, the differential mutual capacitance C12=(C1+environmental common-mode interference) mutual capacitance of the second unit-(C2+C environmental common-mode interference) mutual capacitance of the third unit=C1-C2. The interference of the environmental factors can be basically eliminated in the differential mode, so that the common-mode interference is eliminated, the error code rate is reduced, the scanning time is reduced by half (differential scanning is to scan two columns at the same time, and two pattern informations can be obtained through one measurement, so that the measurement efficiency is improved), the power consumption is reduced, and the battery endurance is prolonged.

Description

Technical Field

[0001] This invention relates to an anti-interference, low-power identification device, which is particularly suitable for chess or puzzle-like devices. Background Technology

[0002] Chess-based educational toys include toys for children and adults. Children's toys are mainly puzzles, while adults' toys include Go, Chinese chess, international chess, military chess, checkers, etc. Puzzles require intelligent judgment of whether the result is correct, various chess games need to record the steps of the game for review and analysis, and for chess games that require referees (such as military chess), intelligent referees are needed to replace humans.

[0003] The foundation of existing technologies for intelligent judgment, recording of chess moves, or providing intelligent refereeing lies in recognizing the identity of chess pieces or puzzle pieces and their positions on the corresponding chessboard or puzzle base. Common recognition methods include visual recognition technology, which requires setting up one or more cameras to capture images for recognition. Disadvantages include high cost, inconvenience in use, high requirements for ambient lighting, poor privacy protection, and safety concerns for children.

[0004] However, no commercial application of this type of capacitive sensor array technology has been seen to date. The main reasons why this technology cannot be commercialized are: First, the problem of common-mode interference: Ambient temperature, humidity, and electromagnetic interference, especially the drive signals of the LED indicator lights on the chessboard, have a significant impact on the capacitance measurement signal, resulting in unstable signals and high bit error rates in existing capacitance measurement solutions, thus preventing productization; Second, the problem of low power consumption: For user convenience and lightweight design, on the one hand, the battery weight should be as small as possible, and on the other hand, the battery-powered chessboard should have as long a battery life as possible. However, existing capacitive array technologies require scanning point by point along the row and column intersections. For games with many pieces and many points, such as puzzles, Go, and Chinese chess, scanning row by row and column by column takes a long time and consumes a lot of energy, making it difficult to simultaneously meet users' needs for long battery life and lightweight design. Summary of the Invention

[0005] The first objective of this invention is to overcome the problem that existing capacitive sensing chess coding recognition systems are susceptible to common-mode interference, resulting in a high bit error rate and making mass production difficult. The second objective is to overcome the problems of high power consumption, lightweight design, and short battery life in existing capacitive sensing chess coding recognition systems.

[0006] To address this, an anti-interference, low-power identification device is provided, comprising a substrate, a capacitance-to-digital converter (CDC), a processing module, and at least one identification object. The substrate is provided with an electrode sensor array consisting of multiple electrodes arranged in a grid. The CDC connects to each electrode. The grid includes a first unit connected to the excitation terminal of the CDC, and second and third units adjacent to the first unit. The second and third units are respectively connected to the receiving terminal of the CDC. Each of the first, second, and third units is formed by one or more interconnected electrodes. Each identification object has at least one coding point to form a specific coding pattern corresponding to that identification object. The coding point is configured to include a first object whose dielectric constant differs from that of the identification object body by more than 4-50 times. When the specific coding pattern faces the grid, each coding point is partially or entirely located within a detection region between the first and second units or between the first and third units, thereby causing a change in mutual capacitance. The CDC uses the first unit as a common excitation to obtain the differential mutual capacitance between the second and third units. The processing module is used to output a first signal representing the position and / or coding of the identification object based on the differential mutual capacitance.

[0007] The first signal may be one or more discrete or continuous data packets, which carry information that enables a logic processor to directly or indirectly identify the location and / or encoding of one or more coding points, wherein the information may be the unprocessed raw signal or the result data obtained by processing the raw signal.

[0008] This invention uses the electrodes of the first unit as a common excitation to obtain the differential mutual capacitance between the second and third units. In cases where there are common influencing factors such as electronic devices (e.g., flickering lights) or the environment around the electrodes, the differential mutual capacitance C12 = mutual capacitance of the second unit (C1 + environmental common-mode interference) - mutual capacitance of the third unit (C2 + C environmental common-mode interference) = C1 - C2. Environmental interference can be largely eliminated through differential methods, achieving the goal of eliminating common-mode interference and reducing the bit error rate. Simultaneously, the scanning time can be halved (differential scanning scans two columns simultaneously, meaning two pattern information can be obtained in one measurement, improving measurement efficiency), reducing power consumption, and extending battery life. This invention is particularly suitable for recognizing chess or jigsaw puzzle toys. For example, a suitable differential mutual capacitance sensor array can be arranged below the chessboard surface, and coded dot arrays can be set on the chess pieces / puzzle blocks to encode them. The position and code of the chess pieces / puzzle blocks can be identified through the signals collected by the differential mutual capacitance, where the encoded information is used to characterize the category or identifier of the chess piece / puzzle block.

[0009] In this invention, the differential mutual capacitance can be obtained using either electronic differential or hardware differential methods. The electronic differential method involves separately measuring the mutual capacitance of the second unit and the mutual capacitance of the third unit, then subtracting them in a programmed manner. This method is suitable for situations where common influencing factors do not change very rapidly. Hardware differential is a more preferred solution, as it utilizes a hardware differential circuit configured with a capacitance-to-digital converter to synchronously measure the differential mutual capacitance. The synchronous measurement of the mutual capacitance of the second and third units by the hardware differential method avoids environmental interference caused by measurements of the two mutual capacitances at different times, resulting in higher accuracy.

[0010] As an improvement, the second and third units can be configured to form a symmetrical or asymmetrical distribution with the related first unit as the axis. Symmetry refers to the equal area and spacing of the symmetrical units. For a symmetrical distribution, some symmetrical encoding cases in the first differential scan will result in identical differential mutual capacitance values. In this case, a second normal scan of the mutual capacitance of the second and third units can be used for further differentiation. For an asymmetrical distribution, a single differential scan is sufficient to distinguish all symmetrical encoding cases, achieving improved scanning efficiency, further enhancing measurement efficiency, and reducing system power consumption.

[0011] As an improvement, an orientation marker can be set on the object to identify its orientation. When a specific coded pattern faces the dot matrix, the processing module obtains a second signal indicating the orientation of the object based on the marker. This second signal can also be one or more continuous or discrete data packets, carrying either the original signal or the processed result information. The marker provides an electrical signal to the processing module, which can be provided in various ways, such as through contact to achieve conduction; through physical structures like interlocking, where pressing a switch triggers the signal; through setting a coded point at one of the four corners of the object's bottom surface while leaving the other three unmarked, determining the orientation by identifying which corner has the coded point; or through using asymmetry among the coded points on the object's bottom surface, such as having more or less tendency or pointing towards a certain direction to provide orientation information, etc. Most preferably, at least one of the coded points on the object has a dielectric constant different from the other coded points, and this point is used as the marker. For example, by making the area of ​​one or more special coding points different from the area of ​​other coding points, or by making the material of one or more special coding points different from the material of other coding points, the electrode sensor array obtains the placement orientation of the identification object such as a chess piece / puzzle by identifying the position of the special coding points. In this scheme where the dielectric constant is different from other coding points, it is possible to eliminate the need for physical structures such as interlocking or switches, or to eliminate the need to frame a specific area within the limited area of ​​the bottom surface of the identification object, such as the bottom surface of a chess piece. This expands the area on the bottom surface of the identification object that can be arranged with coding points, achieving the purpose of structural simplification and increasing the coding limit. And / or, a physical limiting structure is used to restrict the identification object to be placed on the substrate only in a first orientation. For example, by using irregularly shaped grooves on the substrate to restrict the identification object to be embedded only in a specific orientation, the processing module can directly identify the identification object as the default orientation without receiving signals.

[0012] As an alternative improvement, an alignment structure is provided between the substrate and the object to ensure that the coded points align with the detection area when a specific coded pattern faces the dot matrix. For ease of implementation, the alignment structure can be configured as a protrusion on either the substrate or the object, and a recess on the other, thus achieving correct electrode alignment through the use of protrusions and recesses. Alternatively, the alignment structure can be achieved using magnetic attraction, with magnets used to achieve alignment. The magnets can be a combination of magnets and guide surfaces such as inclined or curved surfaces, or they can be purely magnetic. For example, at least three magnets can be placed around the detection area of ​​a chessboard, forming a central attraction force that guides the magnet on the chess piece towards the center of the three magnets, thus achieving alignment. And / or, the recognition device is provided with a guidance structure to guide the coded points to align with the detection area. For example, this can be achieved by drawing a frame or other guide pattern on the substrate surface to specify the placement of the object, or by using indicator lights or voice devices to provide sound and / or light prompts when placement is off-target (e.g., the program recognizes the existence of a coded point but cannot resolve its position or category information due to misalignment with the detection area), thus guiding the user to place the object correctly.

[0013] As another improvement, the substrate can also be equipped with a pressure recognition device for obtaining the weight of the object to be identified. The processing module is connected to the pressure recognition device. The object to be identified can use its own weight as one of the coding information to participate in the coding information of the bottom coding point, so as to expand the upper limit of the coding. At this time, the processing module uses the pressure signal output by the pressure recognition device to participate in the recognition of the code of the object to be identified. For example, after parsing the coding combination at the bottom of the object to be identified, the combination of coding combination and pressure is used to further identify the identity of the chess piece or puzzle, so as to set pressure recognition chessboard, chess piece counterweight coding, or capacitor counterweight mixture. Alternatively, based on the fact that all known materials have specific dielectric constants, another approach is to use the material identification of the coding point as one of the coding information to participate in the coding information of the bottom coding point. For example, the processing module can obtain the dielectric constant of the first object based on mutual capacitance to participate in the coding of the object, thereby expanding the upper limit of the coding. Or, further, the coding point is configured to include at least a second object, the dielectric constant of the second object being greater than 2-25 times that of the chess piece body and greater than 2-25 times that of the first object. The processing module can participate in the coding of the object based on the combination of the dielectric constants of the first and second objects.

[0014] In this invention, the recognition device is specifically a chess set or a puzzle set, and is equipped with a light device corresponding to the chessboard position or puzzle assembly position, and / or the recognition device is equipped with a voice device for human-computer interaction, and / or is equipped with a communication device for communication and interaction with external smart devices, so as to achieve result judgment or intelligent referee function without the aid of smart devices such as computers and mobile phones, realize single-player human-computer game through the light position or voice position prompt on the chessboard (local or cloud), and realize physical replay.

[0015] In this invention, the electrode can be a planar electrode or a curved electrode. The first object is configured as a conductor or a high dielectric constant object.

[0016] In this invention, the first units can be connected to a common excitation terminal of the capacitor-to-digital converter (CDC). A fourth unit, consisting of one or more interconnecting electrodes, is provided between any two adjacent first units in at least one row of the dot matrix. This fourth unit is connected to other excitation terminals of the CDC. At least a second or third unit exists between the first and fourth units. By sharing the excitation of the first units and providing fourth units with different excitations between adjacent first units, the area of ​​a single electrode can be effectively increased within the same limited area, while ensuring that the mutual capacitances of the second and third units can be distinguished. This results in a better signal-to-noise ratio and recognition rate. In the above scheme, each fourth unit can use a separate excitation terminal of the CDC. As a further improvement, it is preferable that each fourth unit in the corresponding row of the dot matrix shares another excitation terminal of the CDC, thereby maximizing the increase in the area of ​​a single electrode and achieving a good signal-to-noise ratio and recognition rate. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the substrate.

[0018] Figure 2 This is a schematic diagram of the electrode connections for a capacitor-to-digital converter circuit.

[0019] Figure 3 This is a schematic diagram of the object to be identified.

[0020] Figure 4 This is a schematic diagram showing the location of the coding points and electrodes.

[0021] Figure 5 This is a schematic diagram showing the symmetrical distribution of electrodes.

[0022] Figure 6 This is a schematic diagram of the asymmetrical distribution of electrodes.

[0023] Figure 7 This is a schematic diagram for direction recognition.

[0024] Figure 8 This is a schematic diagram of the physical limiting structure and the alignment structure.

[0025] Figure 9-1 This is a schematic diagram illustrating the effect of LEDs on capacitors in single-ended mutual capacitance mode.

[0026] Figure 9-2 This is a schematic diagram illustrating the effect of LEDs on capacitors in differential mutual capacitance mode.

[0027] Figure 10-1 This is a schematic diagram of symmetrically encoded differential mutual capacitance measurement for symmetrical electrodes.

[0028] Figure 10-2 This is a schematic diagram of differential mutual capacitance measurement with symmetrical encoding for asymmetric electrodes.

[0029] Figure 10-3 This is a schematic diagram of asymmetric encoding differential mutual capacitance measurement for symmetrical electrodes. Detailed Implementation

[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0031] like Figure 1 As shown, this identification device includes a base 100, which is provided with an electrode sensor array composed of multiple electrodes 110, 120, 130, 210, 220, 230, etc. For ease of labeling, the first, third, fifth, etc., electrodes in the first row are labeled as 110, the first, third, fifth, etc., electrodes in the second row are labeled as 120, the first, third, fifth, etc., electrodes in the third row are labeled as 130; each electrode in the second column is labeled as 210, each electrode in the fourth column is labeled as 220, each electrode in the sixth column is labeled as 230, etc.

[0032] The capacitor-to-digital converter (CDC) circuit connects to each electrode. The dot matrix contains a first unit connected to the excitation terminal of the CDC circuit, and second and third units configured adjacent to the first unit. This is merely an example. Figure 2 Within the frame shown, the first unit is 110, and the second unit 210 and the third unit 220 are arranged adjacent to the first unit 110. The second unit 210 and the third unit 220 are respectively connected to the receiving end of the capacitor-to-digital converter circuit. The first unit 110, the second unit 210, and the third unit 220 are all composed of one or more interconnected electrodes, for example... Figure 2 The example shown is that each unit is composed of a whole piece of electrodes. Alternatively, for example, a certain electrode (such as 210) in the frame can be divided into discrete blocks, which can then be connected by wires or by switches to connect the discrete blocks when needed. In this case, each discrete block should be considered to belong to a unit.

[0033] Figure 3 This is a schematic diagram of the identification object, including the identification object body 1000, one directional coding point 1100, at least one coding point 1200, and at least one uncoded point 1300. The dielectric constant difference between the coding point 1200 and the identification object body 1000 is greater than 4-50 times. Different combinations of coding points can form specific coding patterns.

[0034] Figure 4 This is a schematic diagram of the coding points and electrode positions. The coding pattern includes directional coding points 1100, coding points 1200, and no coding points 1300. When the coding pattern faces the dot matrix, all directional coding points 1100 are located between the first unit 110 and the second unit 210, while coding point 1200 is located within the detection area between the first unit 110 and the third unit 220, thus causing a change in mutual capacitance. The first unit 110 serves as a common excitation, acquiring the differential mutual capacitance between the second unit 210 and the third unit 220.

[0035] Figure 5 This is a schematic diagram of the symmetrical distribution of electrodes. The second unit 210 and the third unit 220 are symmetrically distributed with the first unit 110 as the axis.

[0036] Figure 6 This is a schematic diagram of the asymmetrical distribution of electrodes. The second unit 210 and the third unit 240 form an asymmetrical distribution with the related first unit 140 as the axis.

[0037] Figure 7 This is a schematic diagram for orientation identification. 1100 is the orientation coding point, 1200 is the coding point, and 1300 is the uncoded point. The equivalent dielectric constants of orientation coding points 1100 and 1200 are different when placed on the substrate electrode. The orientation of the object can be determined by identifying the orientation coding points.

[0038] Figure 8 This is a schematic diagram of the physical limiting structure and alignment structure. The identification device is equipped with a physical limiting structure and an alignment structure, including a 2000-degree concave apex of the object to be identified, a 3000-degree convex apex of the base, a 2100-degree convex edge of the object to be identified, and a 3100-degree convex edge of the base. This ensures that the specific coded pattern of the object to be identified is aligned with the detection area when placed facing the dot matrix.

[0039] like Figure 2 , Figure 9-1 As shown, in single-ended mutual capacitance mode, the high-frequency refresh of LEDs located in the middle of the dot matrix or external lights has a significant impact on the capacitance. Figure 9-1 In the table, 4000 represents the data fluctuation when no identification object is placed, 4100 represents the data after the identification object is placed, and 4200 represents the data after the identification object is removed. Figure 9-2The diagram shows the data under differential mutual capacitance mode, using the same high-frequency LED refresh method. Data 5000 represents the data when no object is placed; 5100 represents the data when the object is placed on the first unit 110 and the second unit 210; 5300 represents the data when the object is placed on the first unit 110 and the third unit 220; and 5200 and 5400 represent the data after the object is removed. A comparison of the data from the two modes clearly demonstrates the significant advantage of differential mutual capacitance mode in terms of interference resistance.

[0040] Figure 10-1 This is a schematic diagram of differential mutual capacitance measurement with symmetrical electrodes and symmetrical coding. 110 is the first unit, 210 is the second unit, and 220 is the third unit. The capacitance of coding point 1200 on the first unit 110 and the second unit 210 is defined as +1, the capacitance of coding point 1200 on the first unit 110 and the third unit 220 is defined as -1, and the capacitance of no coding point 1300 is 0. When there is a coding point 1200 on the first unit 110 and the second unit 210, and no coding point 1300 on the first unit 110 and the third unit 220, the differential mutual capacitance C12 = +1; when there is no coding point 1300 on the first unit 110 and the second unit 210, and no coding point 1200 on the first unit 110 and the third unit 220, the differential mutual capacitance C12 = -1; when there is a coding point 1200 on the first unit 110 and the second unit 210, and no coding point 1300 on the first unit 110 and the third unit 220, the differential mutual capacitance C12 = 0.

[0041] Figure 10-2This is a schematic diagram of differential mutual capacitance measurement with symmetrical coding for asymmetric electrodes. 140 is the first unit, 210 is the second unit, and 240 is the third unit. The capacitance of coding point 1200 on the first unit 140 and the second unit 210 is defined as +1, the capacitance of coding point 1200 on the first unit 140 and the third unit 240 is defined as -0.5, and the capacitance of no coding point 1300 is 0. When there is a coding point 1200 on the first unit 140 and the second unit 210, and no coding point 1300 on the first unit 140 and the third unit 240, the differential mutual capacitance C12 = +1; when there is no coding point 1300 on the first unit 140 and the second unit 210, and no coding point 1200 on the first unit 140 and the third unit 240, the differential mutual capacitance C12 = -0.5; when there is a coding point 1200 on the first unit 140 and the second unit 210, and no coding point 1300 on the first unit 140 and the third unit 240, the differential mutual capacitance C12 = 0.

[0042] Figure 10-3 This is a schematic diagram of asymmetric coded differential mutual capacitance measurement with symmetrical electrodes. 110 is the first unit, 210 is the second unit, and 220 is the third unit. The capacitance of the square coded point 1400 on the first unit 110 and the second unit 210 is defined as +1; the capacitance of the square coded point 1400 on the first unit 110 and the third unit 220 is defined as -1; the capacitance of the circular coded point 1500 on the first unit 110 and the second unit 210 is defined as +0.5; the capacitance of the circular coded point 1500 on the first unit 110 and the third unit 220 is defined as -0.5; and the capacitances of the uncoded points 1700 and 1600 are both 0. When there is a square coding point 1400 on the first unit 110 and the second unit 210, and a circular coding point 1500 on the first unit 110 and the third unit 220, the differential mutual capacitance C12 = +0.5; when there is a circular coding point 1500 on the first unit 110 and the second unit 210, and a square coding point 1400 on the first unit 110 and the third unit 220, the differential mutual capacitance C12 = -0.5; when there is no coding point 1700 on the first unit 110 and the second unit 210, and no coding point 1600 on the first unit 110 and the third unit 220, the differential mutual capacitance C12 = 0.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. An anti-interference, low-power identification device, characterized in that: Includes a substrate, a capacitor-to-digital converter circuit, a processing module, and at least one identification element; The substrate is provided with an electrode sensor array consisting of multiple electrodes arranged in a specific pattern. The capacitor-to-digital converter circuit connects to each electrode. The dot matrix contains a first unit connected to the excitation terminal of the capacitor-to-digital converter circuit, and second and third units adjacent to the first unit. The second and third units are respectively connected to the receiving terminal of the capacitor-to-digital converter circuit. In the dot matrix, multiple electrodes located in the same row and every other electrode are interconnected to form a first unit. First units located in different rows are correspondingly arranged in the column direction. In the dot matrix, electrodes located in the same column that are not used as first units are interconnected to form a second unit or a third unit. The second unit and the third unit are respectively disposed between adjacent electrodes included in the first unit and are adjacent to the first unit. The first unit, the second unit, and the third unit are all composed of multiple interconnected electrodes. The second unit and the third unit are asymmetrically distributed with the electrodes adjacent to them in the first unit as the axis. Symmetry means that the symmetrical area and spacing are equal. Each of the identifiers is provided with at least one coding point to form a specific coding pattern corresponding to the identifier, the coding point being configured to include a first object whose dielectric constant differs from that of the identifier body by more than 4-50 times; When the specific coding pattern faces the dot matrix, each coding point is partially or entirely located in the detection area between the electrode included in the first unit and the second unit, or between the electrode included in the first unit and the third unit, thereby causing a change in mutual capacitance. An alignment structure is provided between the substrate and the identifier to ensure that the coding point is aligned with the detection area when the specific coding pattern faces the dot matrix. The capacitor-to-digital conversion circuit uses the first unit as a common excitation to obtain the differential mutual capacitance between the related second and third units. The processing module is used to output a first signal representing the position and / or encoding of the identified object based on the differential mutual capacitance.

2. The identification device according to claim 1, characterized in that: The differential mutual capacitance is obtained by synchronously measuring the hardware differential circuit configured using the aforementioned capacitance-to-digital conversion circuit.

3. The identification device according to claim 1, characterized in that: The identification object is provided with a mark for identifying the direction. When the specific coded pattern faces the dot matrix, the processing module obtains a second signal indicating the placement direction of the identification object based on the mark.

4. The identification device according to claim 3, characterized in that: In the coding points of the identifier, at least one of them has a dielectric constant different from the other coding points, and that one is used as the identifier.

5. The identification device according to claim 1, characterized in that: The identification device is provided with a physical limiting structure, which is used to restrict the identification object to be placed on the substrate in a first direction.

6. The identification device according to claim 1, characterized in that: The alignment structure is configured as a protrusion on either the substrate or the identifier, and a recess on the other.

7. The identification device according to claim 1, characterized in that: The identification device is provided with a guidance structure for guiding the coding point to align with the detection area.

8. The identification device according to claim 7, characterized in that: The guidance structure includes one or more combinations of guidance patterns, indicator lights, and voice devices.

9. The identification device according to claim 1, characterized in that: The substrate is equipped with a pressure recognition device for acquiring the weight of the object to be identified. The processing module is connected to a pressure recognition device to utilize the pressure signal output by the pressure recognition device to participate in the recognition of the encoding of the object.

10. The identification device according to claim 1, characterized in that: The processing module uses the mutual capacitance to obtain the dielectric constant of the first object to participate in the encoding and recognition of the identifier; or The encoding point is configured to include at least a second object, the dielectric constant of which differs from that of the chess piece body by more than 2-25 times, and the dielectric constant of which differs from that of the first object by more than 2-25 times. The processing module participates in the encoding of the object based on the combination of the dielectric constants of the first object and the second object.

11. The identification device according to claim 1, characterized in that: The electrode is a planar electrode or a curved electrode.

12. The identification device according to claim 1, characterized in that: The first object is configured as a conductor or an object with a high dielectric constant.

13. The identification device according to claim 1, characterized in that: The identification device is a chess set or a puzzle set.

14. The identification device according to claim 13, characterized in that: The recognition device is equipped with a light device corresponding to the chessboard position or the puzzle assembly position, and / or the recognition device is equipped with a voice device for human-computer interaction.

15. The identification device according to claim 13, characterized in that: The identification device is equipped with a communication device for communicating and interacting with external smart devices.

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