Accessory device, and system comrpising same for measuring biosignals using smart contact lenses

Abstract

Provided is a system using smart contact lenses for measuring biosignals, the system comprising: smart contact lenses for measuring biosignals or injecting drug into the human body; and an accessory device for communicating with the smart contact lenses and supplying power thereto, wherein the smart contact lenses and accessory device are each provided with at least one electrode for connecting to the human body, and transmit and receive electrical signals between each other using the human body as the medium, and the smart contact lenses are provided with a power reception circuit for receiving operational power from the drug injection device.

Description

Biosignal measurement system using an accessory device and a smart contact lens including the same

[0001] The present invention relates to power supply of smart contact lenses.

[0002] Bio-devices are applied to the human body for therapeutic or diagnostic purposes.

[0003] Bio-devices are designed to measure vital signs or inject drugs into the human body.

[0004] For example, there are smart contact lenses.

[0005] Smart contact lenses are designed to be worn on the eye for vision correction or cosmetic purposes, with circuitry such as sensors or circuit patterns built into them to measure biosignals.

[0006] In the case of these smart contact lenses, in addition to the original function of the lens, they perform additional functions such as measuring bio-signals, and a power supply is inevitably required to perform these additional functions.

[0007] Bio-devices are powered by rechargeable batteries to acquire various bio-information, but smart contact lenses are designed to be worn on the eye in a thin film form, making it difficult to design them with a battery of sufficient capacity built into them.

[0008] Accordingly, research is being conducted from various angles to supply power to smart contact lenses.

[0009] As part of this research, Korean Patent Publication No. 10-2013-0086984 (filing date: 2013. 01. 25., publication date: 2013. 08. 05., “Ophthalmic lens assembly having an integrated antenna structure”, hereinafter referred to as “prior art”) was presented.

[0010] The prior art comprises a contact lens including an antenna array and a contact lens case for supplying power to the contact lens by inductive charging when the contact lens is mounted.

[0011] These prior technologies had the following problems:

[0012] First, because the design took into account the built-in space of the battery (or power storage device), there were many restrictions in the design and manufacturing because the size of the smart contact lens and the battery capacity had to be taken into consideration.

[0013] Second, when the built-in battery capacity is exhausted and it becomes difficult to supply sufficient power to the biometric sensor, it must be removed from the human body and placed in a separate charging case for a specified period of time before it can be reused, so the device cannot be used during the charging period.

[0014] In this case, for users requiring continuous monitoring of their bio-signals, important disease signs may be missed, making early disease prevention difficult. Therefore, the time spent without bio-devices can be directly linked to the user's life, and therefore, minimizing this time is crucial.

[0015] Third, if the smart contact lens is damaged, there is a possibility that the user's safety may be threatened as they may be exposed to hazardous chemicals contained in the built-in battery.

[0016] The present invention was conceived to solve the above-described problems and to secure freedom in the design of smart contact lenses while ensuring a stable power supply.

[0017] In order to achieve this purpose, a bio-signal measurement system using a smart contact lens according to one embodiment of the present invention includes: a smart contact lens for measuring a bio-signal or injecting a drug into a human body; and an accessory device for communicating with the smart contact lens and supplying power to the smart contact lens; wherein the smart contact lens and the accessory device each have at least one electrode for connecting to a human body and transmit / receive electrical signals between each other using the human body as a medium, and the smart contact lens may have a power receiving circuit for receiving power from the accessory device to operate.

[0018] At this time, the accessory device may be provided in a form in which at least a part thereof comes into contact with the skin and is detachable from the human body.

[0019] Additionally, the accessory device may be provided as a patch-type device including a circuit pattern for supplying power to the smart contact lens.

[0020] Here, the accessory device may include a first power supply unit charged with a DC power of a certain capacity; an AC converter unit for converting the DC power provided from the first power supply unit into AC power; a first data transmission / reception unit for generating a communication packet (hereinafter referred to as a “first communication packet”) for communicating with the smart contact lens and collecting the communication packet (hereinafter referred to as a “second communication packet”) transmitted from the smart contact lens; a first multiplexing unit for generating a combination signal by combining the AC power converted by the AC converter unit and the first communication packet; at least one electrode (hereinafter referred to as an “electrode of the accessory device”) for transmitting the combination signal to the smart contact lens or receiving the second communication packet transmitted from the smart contact lens; and a first integrated control unit for controlling each of the above-described components.

[0021] And, the accessory device further includes a gain control unit for controlling the gain of the combination signal; and the first integrated control unit can analyze the second communication packet and control the gain control unit so that the gain of the combination signal to be provided to the contact lens is adjusted according to information about the gain of the combination signal previously provided to the smart contact lens.

[0022] In addition, the smart contact lens comprises: a measuring unit for measuring a bio-signal; a second data transmitting and receiving unit for generating the second communication packet including measurement data for the bio-signal measured by the measuring unit and collecting the first communication packet transmitted from the accessory device; a second power unit having a power receiving circuit for receiving AC power transmitted from the accessory device, converting the received AC power into DC power, and supplying the converted DC power as power for operating each component; at least one electrode (hereinafter referred to as “electrode of the smart contact lens”) for receiving a combination signal transmitted from the accessory device or transmitting the second communication packet to the accessory device; a second multiplexing unit for distinguishing the AC power and the first communication packet among the combination signals received through the electrode of the smart contact lens and providing them to the second power unit and the second data transmitting and receiving unit, respectively; and a second integrated control unit for controlling each of the components. , and the second integrated control unit controls the second multiplexing unit so that the second communication packet is processed into a form that can be provided to the accessory device side, and the second communication packet processed through the second multiplexing unit is transmitted through the electrode of the smart contact lens and can be propagated to the electrode side of the accessory device through the human body.

[0023] Here, the smart contact lens may further include a drug delivery unit for injecting a drug into the human body.

[0024] And, the above accessory devices are provided in M ​​(wherein, M is a natural number greater than or equal to 1), and the smart contact lens receives power from the M accessory devices and can perform bidirectional communication between them.

[0025] In order to achieve this purpose, a bio-signal measurement system using a smart contact lens according to another embodiment of the present invention includes: a smart contact lens for measuring a bio-signal or injecting a drug into a human body; an accessory device for communicating with the smart contact lens and supplying power to the smart contact lens; and an external terminal for communicating with the accessory device and controlling at least one of the smart contact lens and the accessory device; wherein the smart contact lens and the accessory device each have at least one electrode for connecting to a human body and transmit / receive electrical signals therebetween using the human body as a medium, and the accessory device may be provided as a data hub for providing at least a portion of measurement data collected from the smart contact lens to the external terminal.

[0026] Meanwhile, the accessory device proposed by the present invention comprises: a power supply unit charged with a DC power of a certain capacity; an AC converter unit for converting the DC power provided from the power supply unit into AC power; a data transmission / reception unit for generating a communication packet (hereinafter referred to as a "first communication packet") for communicating with a smart contact lens that is mounted on a human body to measure a biosignal or inject a drug, and for collecting a communication packet (hereinafter referred to as a "second communication packet") transmitted from the smart contact lens; a multiplexing unit for generating a combined signal by combining the AC power converted by the AC converter unit and the first communication packet; at least one electrode for transmitting the combined signal to the smart contact lens or receiving the second communication packet transmitted from the smart contact lens; a gain control unit for controlling a gain of the combined signal; and an integrated control unit for controlling each of the above-described components. , and the combination signal is transmitted to the smart contact lens through the electrode using the human body as a medium, and the integrated control unit analyzes the second communication packet and controls the gain control unit so that the gain of the combination signal to be provided to the smart contact lens is adjusted according to information about the gain of the combination signal previously provided to the smart contact lens.

[0027] As described above, according to the present invention, the following effects can be obtained.

[0028] First, power can be supplied between the accessory device and the smart contact lens by utilizing the human body as a medium, eliminating the need to worry about batteries when designing smart contact lenses, minimizing their size and securing design freedom.

[0029] Second, since it is powered by at least one accessory device and operates continuously, not only is its operating life extended, but it can also contribute to the early prevention of diseases by continuously performing bio-signal measurements.

[0030] Third, since the battery-related components of smart contact lenses are omitted, they can be implemented with a simpler configuration than before, which can reduce manufacturing costs and also reduce the financial burden on users.

[0031] Fourth, since the battery-related components are omitted in smart contact lenses, it may become easier to implement various functions within a limited size.

[0032] Fifth, even if smart contact lenses are damaged, they do not contain batteries inside, so they are safe from the dangers of many harmful chemicals contained in batteries.

[0033] Sixth, since two-way data communication is possible between the smart contact lens and the accessory device for supplying power to the smart contact lens through the human body, the smart contact lens can be easily controlled through the accessory device, and the accessory device can function as a data hub between the smart contact lens and an external terminal capable of wireless communication with the accessory device.

[0034] Figures 1 to 3 illustrate a biosignal measurement system using a smart contact lens according to one embodiment of the present invention.

[0035] Figure 4 is a block diagram schematically illustrating a smart contact lens according to one embodiment of the present invention.

[0036] Figure 5 is a block diagram briefly illustrating an accessory device according to one embodiment of the present invention.

[0037] FIG. 6 is a reference diagram illustrating a communication packet in a biosignal measurement system according to one embodiment of the present invention.

[0038] A preferred embodiment of the present invention will be described in more detail with reference to the attached drawings, but technical parts already known will be omitted or compressed for the sake of brevity.

[0039] It should be noted that references in this specification to “one” or “an” embodiment of the invention are not necessarily to the same embodiment, but rather mean at least one.

[0040] In the examples below, the terms first, second, etc. are not used in a limiting sense, but are used for the purpose of distinguishing one component from another.

[0041] In the examples below, singular expressions include plural expressions unless the context clearly indicates a different meaning.

[0042] In the examples below, terms such as “include” or “have” mean that a feature or component described in the specification is present, and do not preclude the possibility that one or more other features or components may be added.

[0043] Each configuration shown in the drawing is arbitrarily shown for convenience of explanation, and therefore the present invention is not necessarily limited to what is shown.

[0044] For reference, as part of the method for wirelessly charging smart contact lenses discussed in the background technology, it may be possible to consider charging smart contact lenses applied to the human body using external radio waves or ultrasound, but in this case, the following problems exist.

[0045] First, since the smart contact lens still needs to contain a battery for charging, its thickness inevitably increases, which could reduce the user's wearing comfort due to its size.

[0046] Second, since radio waves or ultrasound waves strong enough to charge the power inside the smart contact lens must be accurately transmitted to the smart contact lens within a short period of time, it was difficult to ensure the stability of the body adjacent to the smart contact lens.

[0047] Accordingly, the inventor of the present invention proposed the present invention with a focus on improving the user's wearing comfort (or minimizing the foreign body sensation) and minimizing harmful effects on the human body.

[0048] Hereinafter, the present invention will be described in detail with reference to the drawings.

[0049] FIGS. 1 to 3 are drawings illustrating a biosignal measurement system using a smart contact lens according to one embodiment of the present invention, FIG. 4 is a block diagram briefly illustrating a smart contact lens according to one embodiment of the present invention, and FIG. 5 is a block diagram briefly illustrating an accessory device according to one embodiment of the present invention.

[0050] Referring to FIGS. 1 to 5, a biosignal measurement system (10) according to one embodiment of the present invention includes a smart contact lens (100) and an accessory device (200).

[0051] A smart contact lens (100) is a device worn on the user's eye to measure biosignals or inject drugs into the human body.

[0052] A specific explanation regarding this will be discussed after describing the accessory device (200).

[0053] The accessory device (200) is configured to communicate with the smart contact lens (100) and supply power to the smart contact lens (100).

[0054] The accessory device (200) may include a first power supply unit (210), an AC converter unit (220), a first data transmission / reception unit (230), a first multiplexing unit (240), an electrode (250, hereinafter referred to as an 'electrode of the accessory device'), a gain control unit (260), and a first integrated control unit (270).

[0055] The first power supply unit (210) is configured to be charged with a DC power supply of a certain capacity.

[0056] For example, the first power supply unit (210) may be provided with a DC power supply device such as a battery.

[0057] The AC conversion unit (220) is configured to convert the DC power provided from the first power supply unit (210) into AC power.

[0058] At this time, the AC power converted through the AC converter (220) is provided to the smart contact lens (100) through the human body and is used as a power source to operate the smart contact lens (100).

[0059] The first data transmission and reception unit (230) generates a communication packet (hereinafter referred to as the “first communication packet”) for communicating with the smart contact lens (100) and collects a communication packet (hereinafter referred to as the “second communication packet”) transmitted from the smart contact lens (100).

[0060] That is, the first data transmission / reception unit (230) performs a data communication function between the smart contact lens (100) and the accessory device (200).

[0061] The first multiplexing unit (240) generates a combined signal by combining the AC power converted by the AC conversion unit (220) and the first communication packet.

[0062] For example, the first multiplexing unit (240) may be provided as a multiplexer (e.g., MUX).

[0063] The electrode (250) of the accessory device is configured to transmit a combination signal to the smart contact lens (100) or receive a second communication packet transmitted from the smart contact lens (100).

[0064] At this time, the electrode (250) of the accessory device transmits power through the human body using one or two electrodes in contact with the human body.

[0065] That is, power is supplied between the accessory device (200) and the smart contact lens (100) using the human body as a conductor.

[0066] For reference, the current provided from the accessory device (200) to the smart contact lens (100) is preferably an AC power of 10 mA or less at 3 V. This is an extremely low power of 30 mW or less. In other words, the accessory device (200) supplies a weak current to the smart contact lens (100) that is not harmful to the human body.

[0067] The gain control unit (260) is configured to control the gain of the combined signal.

[0068] For example, it can be provided with an automatic gain controller (AGC).

[0069] The first integrated control unit (270) controls each of the above-mentioned components.

[0070] For example, the first integrated control unit (270) can analyze the second communication packet and control the gain control unit (260) so that the gain of the combined signal provided to the smart contact lens (100) is adjusted according to information about the gain of the combined signal provided to the smart contact lens (100).

[0071] To explain more specifically, if the data in the second communication packet includes a signal that the size of the combination signal such as power provided from the accessory device (200) to the smart contact lens (100) communicating with the accessory device (200) is weak, the first integrated control unit (270) controls the gain control unit (260) to increase the gain of the combination signal so that the combination signal with the adjusted gain can be provided to the smart contact lens (100) through the electrode (250) of the accessory device.

[0072] These accessory devices (200) may be provided as devices that can be attached to the human body, such as watches, wristbands, rings, necklaces, earrings, bracelets, glasses, and waist bands, but at least a portion of the devices may be provided as devices that can come into contact with the skin (e.g., wearable devices that come into contact with the human body).

[0073] In addition, it can be provided as a patch-type device that is fixed to the skin using a wide pad required for adhesion.

[0074] The purpose is to minimize discomfort during use by providing an accessory device (200) for supplying power to a smart contact lens (100) in a form that can be easily worn in daily life.

[0075] As a most preferred example, the accessory device (200) may be provided as a patch-type device having a built-in circuit pattern (or circuit material) that can come into contact with the skin.

[0076] At this time, the circuit pattern may include a power supply circuit for supplying power stored in an internal battery (or power storage device) to an external source. Additionally, the circuit pattern may further include circuits for performing additional functions (e.g., biometric sensing, communication functions for communicating with a smart contact lens (or external terminal)).

[0077] For reference, the accessory device (200) can wirelessly supply power through the human body and perform a data hub function that collects and manages measurement data through data communication.

[0078] In addition, the accessory device (200) may be further equipped with a communication unit (not shown) capable of communicating with an external terminal (300), and the communication unit may provide measurement data on bio-signals that can diagnose the user's health to a neighboring external terminal (300) through short-distance communication such as BT or Wi-Fi.

[0079] For reference, the external terminal (300) can be any terminal that can communicate with the accessory device (200) via short-range wireless communication, such as a smartphone, tablet PC, desktop, or bio-signal monitoring terminal.

[0080] Additionally, the accessory device (200) can be used in common, allowing for frequent replacement. If the accessory device (200) is lost in the future, it can be replaced with another accessory device, or power can be continuously supplied to the smart contact lens (100) through another accessory device (200) worn by the user.

[0081] The smart contact lens (100) mentioned above may include a measuring unit (110), a second data transmission / reception unit (120), a second power supply unit (130), an electrode (140, hereinafter referred to as “electrode of the smart contact lens”), a second multiplexing unit (150), and a second control unit (160).

[0082] The measuring unit (110) measures biosignals.

[0083] This measuring unit (110) can be provided with a biosensor, circuit, etc. for measuring a biosignal.

[0084] The bio-signal measured by the measuring unit (110) may be at least one of intraocular pressure, blood sugar, and stress levels. The bio-signals that the measuring unit (110) can measure are not limited thereto, and may include any bio-signal (or bio-information) that can be measured through the eyes, along with the results of component analysis of bodily fluids such as tears (component values ​​(or diagnostic results) for diagnosing diseases such as dry eye and vitreous infection).

[0085] The second data transmission / reception unit (120) generates a second communication packet including measurement data for a biosignal measured from the measurement unit (110) and collects the first communication packet transmitted from the accessory device (200).

[0086] That is, the second data transmission and reception unit (120) performs the function of transmitting and receiving communication packets when exchanging electrical signals between the smart contact lens (100) and the accessory device (200).

[0087] For reference, the second communication packet includes identification information of the smart contact lens (100) along with measurement data.

[0088] The second power supply unit (130) converts the AC power transmitted from the accessory device (200) into DC power, and supplies the converted DC power as power for operating each component (e.g., the measuring unit, the second data transmission / reception unit, the electrode of the smart contact lens, the second multiplexing unit, and the second control unit).

[0089] That is, the second power source (130) performs a power receiving function that receives power through the human body using the electrodes (140) of one or two smart contact lenses in contact with the human body.

[0090] The smart contact lens has at least one electrode (140) and is configured to receive a combination signal transmitted from an accessory device (200) or transmit a second communication packet to the accessory device (200).

[0091] The second multiplexing unit (150) distinguishes between AC power and the first communication packet among the combined signals received through the electrode (140) of the smart contact lens and provides them to the second power unit (130) and the second data transmission / reception unit, respectively.

[0092] Additionally, the second multiplexing unit (150) processes the second communication packet into a form that can be provided to the accessory device (200).

[0093] For example, the second multiplexing unit (150) can generate a processed signal by combining a second communication packet with a portion (a weak level of AC power) of the AC power supplied to the second power unit (130).

[0094] The second integrated control unit (160) controls each of the above-mentioned components (110, 120, 130, 140, 150).

[0095] For example, the second integrated control unit (160) can control the second multiplexing unit (150) so that the second communication packet is processed into a form that can be provided to the accessory device (200).

[0096] At this time, the second communication packet processed through the second multiplexing unit (150) can be transmitted through the electrode (140) of the smart contact lens and transmitted through the human body to the electrode (250) side of the accessory device.

[0097] As a result, each of the above-described smart contact lenses (100) and accessory devices (200) has at least one electrode (140, 250) for connecting with the human body and transmits / receives electrical signals between them using the human body as a medium.

[0098] That is, the electrode (250) of the accessory device and the electrode (140) of the smart contact lens are in contact with the skin, and not only two-way data communication between the accessory device (200) and the smart contact lens (100) using the human body as a medium is performed, but also wireless power supply from the accessory device (200) to the smart contact lens (100) is performed.

[0099] Strictly speaking, the smart contact lens (100) and the accessory device (200) utilize the human body as a conductor to perform two-way communication between each other and one-way power supply from the accessory device (200) to the smart contact lens (100).

[0100] These smart contact lenses (100) can be powered by an accessory device (200) and can be manufactured without a battery. In other words, they can be miniaturized compared to previously reported smart contact lenses (100) and their design freedom can be improved.

[0101] In addition, the smart contact lens (100) proposed by the present invention may further include a drug delivery unit (170) for injecting a drug into the human body.

[0102] It goes without saying that, depending on the implementation, either one of the measuring unit (110) and the drug dispensing unit (170) or both can be included.

[0103] At this time, the operation of the drug delivery unit (170) can be controlled by the second integrated control unit (160).

[0104] For example, if both a measuring unit (110) and a drug delivery unit (170) are configured, and the measurement results collected from the measuring unit (110) indicate that drug injection into the human body is required, the second integrated control unit (160) can analyze the results of the above-described measurement data and control the drug delivery unit (170) so that drug injection is performed according to the analysis results.

[0105] If the smart contact lens (100) is configured with only a drug delivery unit (170) excluding the measuring unit (110), the drug delivery unit (170) can be controlled to operate according to the preset injection time interval and dosage.

[0106] Meanwhile, FIG. 3 illustrates a biosignal measurement system (10) according to one embodiment of the present invention.

[0107] Referring to FIG. 3, two or fewer smart contact lenses (100) may be provided, and M (wherein M is a natural number greater than or equal to 1) accessory devices (200) may be provided.

[0108] At this time, at least one smart contact lens (100) is supplied with power from M accessory devices (200) and can perform bidirectional communication between them.

[0109] That is, the smart contact lens (100) and the accessory device (200) correspond to each other in a 1:M or 2:M ratio and can constitute a biosignal measurement system (10).

[0110] For example, if the number of accessory devices (200) is greater than the number of smart contact lenses (100), when the power charged in one accessory device (200) is exhausted, power supply can continue from the other accessory device (200), thereby enabling stable operation of the smart contact lens (100).

[0111] Meanwhile, FIG. 6 is a reference diagram illustrating a communication packet in a biosignal measurement system according to one embodiment of the present invention.

[0112] Communication between the smart contact lens (100) and the accessory device (200) can be implemented as bidirectional communication using serial communication.

[0113] At this time, the communication packets used for mutual communication are exemplified in Fig. 6.

[0114] Referring to Figure 6, the composition of a communication packet can be composed of STX, identifier, Length, Data, and ETX.

[0115] STX means the beginning of data.

[0116] The identifier is a unique ID for the device (smart contact lens or accessory device).

[0117] At this time, the identifier may have a size of 16 bits, and when communicating between a smart contact lens (100) and an accessory device (200), the integrated control unit of each device can identify the type of the other device by checking the unique ID of the device.

[0118] Length defines the length of DATA and can have a size of 16 bits.

[0119] DATA is data generated by a smart contact lens (100) or accessory device (200).

[0120] For example, it may be measurement data measured from a smart contact lens (100), a control command for controlling the operation of a smart contact lens (100) provided from an accessory device (200) to the smart contact lens (100), gain information of a combination signal provided to the smart contact lens (100), etc.

[0121] ETX means end of data.

[0122] This is just an example, so the composition of the communication packet may vary depending on the implementation.

[0123] Referring to the configuration of the communication packet mentioned above, data regarding an identifier is necessarily included between the smart contact lens (100) and the accessory device (200).

[0124] This is to identify the device in communication (or power supply) when communicating between multiple devices, and to ensure that the communication packet is accurately delivered to the target device.

[0125] For example, when one accessory device and two smart contact lenses (hereinafter referred to as “first bio-device” and “second bio-device”) are applied to the human body, the bio-signals measured by each of the first bio-device and the second bio-device may overlap or be different.

[0126] At this time, the accessory device (200) can analyze the communication packets sent by each device and distinguish and secure the measurement data provided from the first bio device and the measurement data provided from the second bio device.

[0127] If there are overlapping bio-signals among the bio-signals measured by the first bio-device and the second bio-device, the accessory device (200) can compare and analyze the corresponding measurements, consider the error range according to the previously stored measurement location and the meaningful measurement value for diagnosing the disease, and then examine whether there is an error in the values ​​measured from the two bio-devices.

[0128] To explain more specifically, if the measurement data for the overlapping bio-signals of the first bio-device and the second bio-device are different, the accessory device (200) examines the errors in the corresponding values, and if the measurement data measured from one of the bio-devices falls within an unacceptable error range and has a value that is meaningless for diagnosing a disease, the failure of the corresponding bio-device can be determined.

[0129] In this case, the accessory device (200) can output the judgment result regarding the failure to the display unit provided by the accessory device (200) or provide it in real time to an external terminal (300).

[0130] As another example, when two accessory devices (hereinafter referred to as 'first accessory device' and 'second accessory device') and a single smart contact lens (100) are applied to the human body, both accessory devices may supply a small level of power to the single smart contact lens (100), but may also sequentially receive power from either accessory device.

[0131] In this case, the smart contact lens (100) is provided with identification IDs for all accessory devices that come into contact with the human body during initial operation, and sets one of the accessory devices (e.g., the first accessory device) to preferentially communicate with the set first accessory device and receive power from the first accessory device.

[0132] A smart contact lens (100) that operates by receiving power from a first accessory device can continuously receive power from another accessory device (e.g., a second accessory device) and communicate with the second accessory device when the power supply level falls below a preset level or power supply is not provided, and can notify the second accessory device of the need for replacement or charging of the first accessory device.

[0133] The guidance provided from the smart contact lens (100) is output to the display unit equipped in the second accessory device or provided in real time to an external device so that the user can check it.

[0134] That is, through communication between the accessory device (200) and the smart contact lens (100), information about whether the smart contact lens (100) is broken or whether the accessory device (200) needs to be replaced or charged can be provided to the user in real time through the accessory device (200), and the user who confirms this can quickly take the best possible action to ensure that the smart contact lens (100) can continue to operate.

[0135] For reference, the communication speed can have a variable speed from 100 bps to 10 Mbps.

[0136] As a result, the biosignal measurement system (10) proposed by the present invention has many advantages in data collection and device control due to the two-way communication function between the smart contact lens (100) and the accessory device (200) using the human body as a medium.

[0137] To explain more specifically, the smart contact lens (100) can be used for a long period of time without having to replace the smart contact lens (100) repeatedly or charge it after removing it due to the multi-device communication and power supply function, and the convenience of use can be improved, such as the integrated collection of data of the smart contact lens (100) and the easy control of the smart contact lens (100) through the accessory device (200).

[0138] As described above, the specific description of the present invention has been made by way of embodiments with reference to the drawings, but since the above-described embodiments have only described preferred examples of the present invention, the present invention should not be understood as being limited to the above-described embodiments, and the scope of the rights of the present invention should be understood by the claims described below and their equivalents.

Claims

1. Smart contact lenses for measuring biosignals or injecting drugs into the human body; and An accessory device for communicating with the smart contact lens and supplying power to the smart contact lens; The smart contact lens and the accessory device each have at least one electrode for connecting to the human body and transmitting / receiving electrical signals between each other using the human body as a medium. The above smart contact lens is characterized in that it has a power receiving circuit for operating by receiving power from the accessory device. A biosignal measurement system using smart contact lenses.

2. In paragraph 1, The above accessory device is characterized in that at least a part thereof is provided in a form that is in contact with the skin and detachable from the human body. A biosignal measurement system using smart contact lenses.

3. In paragraph 1, The above accessory device is characterized in that it is provided as a patch-type device including a circuit pattern for supplying power to the smart contact lens. A biosignal measurement system using smart contact lenses.

4. In paragraph 1, The above accessory device, A first power supply unit charged with a certain amount of direct current; An AC converter for converting the direct current power provided from the first power supply into alternating current power; A first data transmission / reception unit that generates a communication packet (hereinafter referred to as a “first communication packet”) for communicating with the smart contact lens and collects a communication packet (hereinafter referred to as a “second communication packet”) transmitted from the smart contact lens; A first multiplexing unit that generates a combined signal by combining the AC power converted in the above AC conversion unit and the first communication packet; At least one electrode (hereinafter referred to as an 'electrode of the accessory device') for transmitting the combination signal to the smart contact lens or receiving a second communication packet transmitted from the smart contact lens; and A first integrated control unit that controls each of the above-mentioned components; characterized by including A biosignal measurement system using smart contact lenses.

5. In paragraph 4, The above accessory device, Further comprising a gain control unit for controlling the gain of the above combination signal; The first integrated control unit analyzes the second communication packet and controls the gain control unit so that the gain of the combined signal to be provided to the contact lens is adjusted according to information about the gain of the combined signal provided to the smart contact lens. A biosignal measurement system using smart contact lenses.

6. In paragraph 4, The above smart contact lenses, A measuring unit for measuring biosignals; A second data transmission / reception unit that generates the second communication packet including measurement data for a biosignal measured from the above measurement unit and collects the first communication packet transmitted from the accessory device; A second power supply unit having a power receiving circuit for receiving AC power transmitted from the accessory device, converting the received AC power into DC power, and supplying the converted DC power as power for operating each component; at least one electrode (hereinafter referred to as a “smart contact lens electrode”) for receiving a combination signal transmitted from the accessory device or transmitting the second communication packet to the accessory device; A second multiplexing unit that distinguishes the AC power and the first communication packet among the combination signals received through the electrodes of the smart contact lens and provides them to the second power unit and the second data transmission / reception unit, respectively; and A second integrated control unit that controls each of the above-mentioned configurations; The second integrated control unit controls the second multiplexing unit so that the second communication packet is processed into a form that can be provided to the accessory device. The second communication packet processed through the second multiplexing unit is transmitted through the electrode of the smart contact lens and propagated to the electrode side of the accessory device through the human body. A biosignal measurement system using smart contact lenses.

7. In paragraph 6, The above smart contact lens is characterized in that it further includes a drug delivery unit for injecting a drug into the human body. A biosignal measurement system using smart contact lenses.

8. In paragraph 1, The above accessory device is provided with M (where M is a natural number greater than or equal to 1), The above smart contact lens is characterized in that it receives power from M of the above accessory devices and performs bidirectional communication between them. A biosignal measurement system using smart contact lenses.

9. Smart contact lenses for measuring biosignals or injecting drugs into the human body; An accessory device for communicating with the smart contact lens and supplying power to the smart contact lens; and An external terminal for communicating with the accessory device and controlling at least one of the smart contact lens and the accessory device; The smart contact lens and the accessory device each have at least one electrode for connecting to the human body and transmitting / receiving electrical signals between each other using the human body as a medium. The above accessory device is characterized in that it is provided as a data hub for providing at least a part of the measurement data collected from the smart contact lens to the external terminal. A biosignal measurement system using smart contact lenses.

10. Power supply unit charged with a certain capacity of direct current; An AC converter for converting the direct current power provided from the above power supply into alternating current power; A data transmission and reception unit that generates a communication packet (hereinafter referred to as a “first communication packet”) for communicating with a smart contact lens that is mounted on a human body to measure biosignals or inject drugs, and collects a communication packet (hereinafter referred to as a “second communication packet”) transmitted from the smart contact lens; A multiplexing unit that generates a combined signal by combining the AC power converted by the above AC conversion unit and the first communication packet; At least one electrode for transmitting the combination signal to the smart contact lens or receiving a second communication packet transmitted from the smart contact lens; A gain control unit for controlling the gain of the above combination signal; and An integrated control unit that controls each of the above-mentioned components; The above combination signal is transmitted to the smart contact lens through the electrode using the human body as a medium. The above integrated control unit analyzes the second communication packet and controls the gain control unit so that the gain of the combined signal to be provided to the smart contact lens is adjusted according to information about the gain of the combined signal provided to the smart contact lens. Accessory device.

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