WEARABLE DEVICE AND DATA SECURITY METHOD THEREOF
The present invention refers to method relates to wearable device and data security, specifically human body communication system using a wearable device and data security method applied are disclosed. A human body communication techniques for performing data communication using human body are disclosed. I.e., such as a human body communication without using a wired or wireless communication, the value of less than 2000 medium delivery of electric signal. The pin is a variety of ways to human communications. In one example, a human body communication can be using variations in current flowing through the human body. I.e., by changing a current electrode of the transceiver will contact the human body, a human body communication can be performed. Another example, disapproval using variations in electric field of a human body surface. This way a human body communication enable a human as medium can be transmitted. The registration using medium from the surface of the human body communication, communication among devices or portable user device fixed communication between user contacts can be performed. For example, a digital camera, such as smart phone communication with the portable device and peripheral electronic device user's contacts can be performed. Printer, credit card payment, TV receiving, entrance system, such as textured or traffic ticket issuer modification can be accomplished through the user's contact number. In addition, attached to or inserted into human skin within the body can be performed medium human communication with the electronic device. Recently to avoid coupling local wireless communication wireless body area networks (WBAN) related station number using human human body communication standard IEEE 802. 15. 6 WBAN standard positive number to take place. This to avoid coupling the communication device using the human body communication wearable (wearable) method adjustment disclosed. The purpose of the invention is unexpected with the user in the user communication data leakage can occur in the context of the body preventing a wearable device and data security method number 30 to 60 seconds. According to the method of the present invention embodiment example operation of the wearable device, a first thickness is formed on the external contacting no, data communication performance measuring voltage envelope, said envelope voltage by comparing said threshold voltage and determining a body external to said second contact, and said external when contacting a, said data communications cease the can. In the example embodiment, first thickness is formed on said step, said external contacting a no measuring voltage envelope, said envelope to obtain the average value of the measured amount of voltage, and said average value determined voltage is subtracted by said voltage threshold level in advance on the can. In the example embodiment, first thickness is formed on said step, said external contacting a no measuring voltage envelope, said envelope voltage measurement to obtain the maximum value, and said maximum voltage set in advance on the determined voltage is subtracted by the threshold voltage can be. In the example embodiment, said step of communicating the data, to avoid coupling (capacitive coupling) between communication method using a computer communicates the wearable device can be. In the example embodiment, each of the station number said wearable device standard IEEE 802. 15. 6 WBAN (wireless body area network) can communication in accordance with an. In the example embodiment, said contacting with an external step, said determining a third time threshold voltage to determine whether said envelope number 1 can include disclosed. In embodiment example, if said envelope voltage not greater than said threshold voltage, said data communication further comprises continue on into the can. In embodiment example, said third threshold voltage if said envelope, said determining further comprises external human body contacting that there can be. In the example embodiment, when the external contacting said microchips, said data communication is stopped, said external user can further include the step of contacting notification in a. In embodiment example, after said data communications cease, measuring the voltage envelope of the received signal, and said threshold voltage lower than said number 2 time further comprises determining if a measured envelope can be. In embodiment example, said number 2 said envelope voltage is lower than a threshold voltage measuring said time, said data communication was interrupted can further include the step. In embodiment example, said number 2 threshold voltage is not lower than said time said measured envelope, the envelope of the received signal can be further includes voltage again measured. According to the example of the present invention embodiment wearable device, a signal receiver to receive a signal through a human body, said detector an envelope voltage of the received signal envelope, said envelope and a threshold voltage and the comparison voltage comparator, said threshold voltage is measured when the external contacting a free envelope voltage is subtracted by a predetermined voltage value and, when performing data communication with the signal transmitter, said third threshold voltage if the measured envelope, said data corresponding to said received signal communication signal transmitter signal can be transmitted to the resin is stopped or suspended. In the example embodiment, the threshold voltage of said third voltage comparator said method during data communication number 1 and determines whether the time said envelope, said envelope said third time threshold voltage if said number 1, said data communication is stopped or said signal said signal transmitter can be transmitted to the resin. In embodiment example, said resin after said data communication is interrupted or said voltage comparator is number 2 after the signal is transmitted to a time less than said voltage threshold voltage if a discriminating said envelope, said envelope voltage if said number 2 time less than said threshold voltage, said data communications can be resumed. In the example embodiment, human contact with the signal electrode, said signal receiver further includes a PCB (printed circuit board) and ground can be implemented. According to the method of the present invention embodiment example wearable device of data receive, for data communication signal for transmission via the outside connects the receiving, said step of measuring a voltage envelope of the received signal, said received signal the filtering and amplification, the amplified signal is the envelope voltage comparing said threshold voltage, said predetermined period of time and said envelope voltage is less than the threshold voltage, data communication comprising said block can be. In the example embodiment, said data communication data for transmission to avoid coupling scheme be. In the example embodiment, said data communication cost, can further include the step of first thickness is formed on said. In the example embodiment, first thickness is formed on said step, a predetermined period of time measured received signal envelope voltage by using mean value and said first thickness is formed on said storing data corresponding to the set threshold voltage can be. According to the example of the present invention embodiment wearable device and data security method, a temperature sensing device monitors the envelope, a user wearable device, body contacting with unexpected an initializing communication information leakage without separate generated by user behavior can be mover. In addition, according to the method of the present invention embodiment example wearable device and data security, security software to avoid coupling communication without additional sensor or physical properties of the sensing device with an outer contact shared by, capable of minimizing implementation complexity. Figure 1 shows a communication process according to example of the present invention embodiment also illustratively show block coupling capacitive circuits are disclosed. Figure 2 shows a coupling of the present invention embodiment example according to avoid both when a transceiver also using wrist, a signal potential formed between the 06 form surface are disclosed. Example according to Figure 3 of the present invention embodiment of a human user functions only single human user communication channel external change in amplitude of a signal received in number etched when human contact. Figure 4 shows a controlling the amplitude of the received signal according to example of the present invention embodiment also arising from contact with an initializing voltage (Vth) detecting change in amplitude voltage by comparing a predetermined threshold value, the contact sensing device showing an initializing a illustratively are disclosed. Figure 5 shows a wearable device according to of the present invention embodiment to exemplify the method for securing data of example also showing the flow disclosed. Figure 6 shows a method of the present invention according to another embodiment also exemplify the wearable device for securing data of example showing the flow disclosed. Figure 7 shows a wearable according to the example of the present invention embodiment also showing a micro illustratively are disclosed. The embodiment of the present invention hereinafter in the art drawing below using the contents of the present invention is a jacket for person with skill in the art explicit and specifically substrate will. Examples of the present invention general outline according to embodiment can apply various changes may have various shapes and the specification detailed in example embodiment examples drawing since the broadcast receiver. However this particular disclosure be but is defined with respect to examples of the present invention general outline according to embodiment forms, all changing range of idea and techniques of the present invention, uniform water, comprising or replacement. The term such as number 1 or number 2 describes various components can be used but, in terms of said components are defined by said back like. Components are mounted to one of said terms object only distinguished from other components, for example of the present invention general outline according to without deviates from the scope of the invention, termed component number 1 number 2 components can be similarly number 2 number 1 component can be named as components. The specification a term used in a particular embodiment is used to account for example only, the present invention intending to be define is endured. It is apparent that a single representation of the differently in order not providing language translators, comprising plurality of representation. In the specification, the term "comprising" or "having disclosed" specification of a feature, number, step, operation, component, piece or the present combination specify not included, another aspect of one or more moveable number, step, operation, component, piece or the possibility of a combination number is understood to should not presence or additional pre-times. Not defined differently, scientific or technical terms so that all terms in the present invention thus is provided to the person with skill in the art generally by is a device exhibits the same meaning. Pre-defined terms typically used such as providing language translators must be interpreted as a semantic match semantics and having associated technology, the specification defined manifest in not, or overly formal sense interpreted not ideal. Figure 1 shows a communication process according to example of the present invention embodiment also illustratively show block coupling capacitive circuits are disclosed. The reference also 1, to avoid coupling communication system (100) the signal transmitter (110), signal receiver (120), and user human (130) can be a. Signal transmitter (110) and is connected to a portion of the human, modulates data to human (130) can be implemented to transmit. Wherein, human (130) is a channel for acting as the signal propagating from the signal transmitter can be conveyed to the receiver. For example, channel is signal transmitter (110) formed in the vicinity of human electrical signal potential difference can be formed. In the example embodiment, signal transmitter (110) includes a wearable device implementation being removable (wearable device). For example, signal transmitter (110) includes a smart watch, glasses, and necklace is provided at a contact device can be. Signal receiver (120) includes a body (130) can be implemented to recover the transmitted signal from receive the data. The recovered data, human body communication and other communication method can be delivered by an external device. The, signal transmitter (110) from signal receiver (120) transmitted signals are transmitted to a human (130) or wireless such as human body channel defining all transmission path, an electric signal is induced in the body outside can be define external noise. In the example embodiment, signal receiver (120) includes a removably attachable wearable device implementation being. For example, signal receiver (120) includes a smart watch, glasses, and necklace is provided at a contact device can be. In addition, signal receiver (120) includes a sensing device (124) can be a. Sensing device (124) is also contacting a sense can be implemented. For example, sensing device (124) the envelope voltage monitoring signal received by a receiver (Ven), a predetermined value by comparing the monitored envelope voltage (Ven), a contacting with an external can be. To avoid coupling (capacitive coupling) of the human body communication, signals to and from the human body by an applied electric potential difference of signals used for a communication channel. Human body medium transmits data signal outside of the other portions of the human body connected or can be computed using a receiver. To avoid coupling scheme that allows the human communication is by a surrounding environment that changes in channel characteristics along s402. characteristics of a received signal. To avoid coupling scheme is the body of the user since a communication channel medium, public transportation, such as passenger elevator situation where people jammed the other external phosphorus difficult to predict body contacting is applied between users, user contact occurs at the moment when the user data information placed in difficult short external phosphorus can be transmitted. In addition, a particular user's communication data intentionally e.g. human external user data leakage when the body contacting assessment attempt can be generated. According to the example of the present invention embodiment is wearable device plays a role in a transceiver device coupling communication can be avoid. Wearable device of the communication prior to the method of the present invention for securing data of desired user body contacting with wearable device normally without using other external in which case communication between the wearable device for measuring the voltage of a signal received or a correction can be. The, amount of the received signal is the voltage amplitude of a received signal envelope (envelope) can be voltage. In addition, wearable device of the present invention method for securing data of a received signal according to a communication signal band needed for growth or a filtering or an amplitude of a signal can be amplified. In addition, the method of the present invention for securing data of external wearable device contacting the user when communication normally after measuring voltage amplitude envelope of a signal received, determining apparatus that received signal or a low threshold voltage can be. The envelope voltage of capacitive circuits coupling communication device wearable device threshold voltage by comparing between a number of doors when using no body contact, envelope voltage higher than a threshold voltage input of can be discriminated. On the other hand, to avoid communication coupling therefore, if external user contact with the body of a body, the body of the user of the communication device is operating in the ground between coupling weakened so ground plane can be reduced in size and of a signal received. The receiver input signal, i.e. envelope voltage can be lower than during normal operation. The method of the present invention for securing data of wearable device by detecting threshold voltage lower than the envelope voltage signal, or a touch-generating body with an initializing identifying can be. In addition, the method of the present invention for securing data of wearable device, touch-generating body has been found with an initializing external or vibration body contact notification and, in user wearable device or transmission of a signal can be communicated to interruption or a resin. The body contacting the moment without performing separate external phosphorus-in number to user behavior of the method the data communication is interrupted immediately via the external shielding disclosed. Figure 2 shows a coupling of the present invention embodiment example according to avoid both when a transceiver also using wrist, a signal potential formed between the 06 form surface are disclosed. The formation potential human user (130), signal transmitter (110), signal receiver (120), including ground ground (earth ground, 101) can be. Signal transmitter (110) and the signal receiver (120) each of the, main signal electrode potential formation (111, 121) of PCB (printed circuit board) supplying device configured ground (112, 122) can be a. Each of the transmission signals and reception signals human (130) of each signal electrode contact (111, 121) transmitted or human body through, human (130) can be transmitted through. Signal transmitter (110) and the signal receiver (120) each of the, data transmission and reception between the wearable device can take on the role of communication device. Each human (130) applying the potential difference of signals to maximize the potential difference of signals input received audio provided to size, i.e. in order to signal a change in amplitude voltage values, signal transmitter (110) and the signal receiver (120) each PCB ground (112, 122) on ground that is (101) so as to perform a channel between coupling can be large. The body with an the user body contacting surface, external communications channel i.e. the body of the user, while the insertion signal transmission path and extending into the ground having a potential difference, signal transmitter (110) and the signal receiver (120) each PCB ground (112, 122) on ground that is (101) by coupling between that attenuate, applied signal voltage value in a reduced or, of a signal received can be variable. As a result user only using the reception signal of the receiver channel than normal human communication state reduces the size. Example according to Figure 3 of the present invention embodiment of a human user functions only single human user communication channel external change in amplitude of a signal received in number etched when human contact. The, watch type of PCB area about 3 cm x 5 cm (grounding) wearing a transceiver, such as between a example embodiment 2 also shown in both wrist is set to. Signal transmitter (110) exert an initializing with wrist body contacting occurs in size and, signal receiver (120) and holds the cabinet for minimizing the impact of mini - (mini-a circuits) number in connection work grudge FTB-a 1 provided 6 balun circuit was used. Signal receiver (120) on the oscilloscope receiving signal is passive probe (passive probe) it has been determined that soft deficiency. The, human (130) applying a transmitted signal is IEEE 802. 15. 6 WBAN station number generated by human body operational clock frequency standard defined in 42 MHz center frequency of 21 MHz digital signal with are disclosed. Transmission signal frequency and signal form wearable device for use in a test signal (e.g., modulation type) coupling to avoid depending on application service can be. 3 Also shown in signal embedded in noise by about frequency oscilloscope using a filter function for a stand-alone number 21MHz highband (high non-pass) filter and low (low-a pass) from the filters is signal are disclosed. As shown in Figure 3, signal transmitted frame unit and, in the Image data signal according to an input signal with voltage amplitude can be through interval difference. If there is no contacting a external, about 12 V peak-a peak average amplitude of the received signal. 8 Mv are disclosed. On the other hand, body contacting with an initializing event, measuring about 7 V peak-a peak average amplitude of the received signal. 5 Mv are disclosed. V peak-a peak amplitude signals in cases of body contacting with an initializing for size reduction, external V peak-a peak average amplitude of the received signal if there is no contacting a generated is equal to about 41%. I.e., when external contacting a user, there is no contact body can be received signal than reducing the size of the molecules. Figure 4 shows a example of the present invention embodiment also arising from the change in amplitude of the received signal according to contact with an initializing for controlling the threshold voltage (Vth) by comparing a predetermined voltage amplitude detecting, sensing contact with an initializing device (124) illustratively show a surface are disclosed. The reference also 4, sensing device (124) is envelope detector (124 - 1) and voltage comparator (124 - 2) can be a. Envelope detector (124 - 1) is an alternating types of receiving receives signals, to generate envelope voltage (Ven) can be implemented. Wherein a received signal is signal receiver (120) filtered in and an amplified signal that is disclosed. Voltage comparator (124 - 2) amount of signal received by a receiver the envelope detection value, i.e. envelope (Ven) number 1 receives a voltage input, a threshold voltage (Vth) receives input number 2, number 1 number 2 adapted to compare the input voltage input voltage can be implemented. Voltage comparator (124 - 2) according to the output value, and a second contact can be determined a number of doors. For example, threshold voltage (Vth) predetermined t time generates the envelope voltage (Ven), it can be determined external to a body of the user and the body. , the threshold voltage (Vth), contacting a user without external human body normally by using only when transmitting the signal, the average value of the envelope voltage (Ven) than a predetermined amount of received signal voltage (Δ V) can be as low as determined by the voltage. The, signal receiver (110) according to a signal received by a receiver communication signal band needed for growth can be implemented to amplification or filtering an amplitude of a signal. Figure 5 shows a wearable device according to of the present invention embodiment to exemplify the method for securing data of example also showing the flow disclosed. The reference also 1 to 5 also, method for securing data of wearable device as follows. A wearable device (e.g., also 1, 120) of signal receiver is also contacting had there been no threshold voltage (reference 4 also, Vth) can be set (S110). Wherein the threshold voltage is detected by the envelope detector (also 4, 124 - 1) can be set using a envelope voltage (Ven). For example, threshold voltage (Vth) when a predetermined period of time for contacting with external envelope voltage average value of (Ven) can be set. In another embodiment example, threshold voltage (Vth) in average envelope voltage (Ven) predetermined value can be set to a value is subtracted. In the example embodiment, the threshold voltage (Vth) set the signal receiver (120)) threshold voltage (Vth) inside the memory or register data corresponding to can be stored. Sensing device (120) includes a threshold voltage (Vth) threshold voltage (Vth) according to the data corresponding to the voltage generator further comprises generating can be. Then, sensing device (124) the envelope detector (124 - 1) includes a signal receiver (120) received signal by means, of a received signal envelope voltage (Ven) can be measuring (S120). I.e., wearable device while the envelope voltage (Ven) data communication received signal can be measured. Then, sensing device (124) comparator (124 - 2) threshold voltage (Vth) holds (Ven) and by comparing the envelope voltage, contacting with an external can be a (S130). If, when external contacting a, data communication is interrupted can be wearable device (S140). I.e., measuring threshold voltage (Vth) envelope voltage determined in advance (Ven) period of time is less than the, check the external contacting a can be. The, data communication can be interrupted immediately wearable device. On the other hand, according to the method of the present invention embodiment example wearable device for securing data of a user upon contact body external contacting notification can be external. Figure 6 shows a method of the present invention according to another embodiment also exemplify the wearable device for securing data of example showing the flow disclosed. 6 Also reference surface, method for securing data of wearable device can be performed as follows. Wearable device includes a transmitting and receiving function and avoid coupling communication device, to avoid coupling communication device in Figure 1 is described signal receiver (120) can be a. Prior to the desired data communication, depending on user communication environment of human body security channel by considering effect correction process can be performed. In correction, the user is free communication with normal operation of the received signal envelope voltage (Ven) contacting an execution (S210) can be measured. (Ven) of the received signal envelope voltage following to measurement, high voltage threshold voltage (Vth) than envelope voltage Δ V (Ven) as low as can be set value (S220). For example, envelope voltage of the average voltage drop (Ven), envelope voltage (Ven) at a reference value of the threshold voltage (Vth) Δ V like high voltage as low as can be. On the other hand, number one threshold voltage (Vth) setting method will be here will not arise. Threshold voltage (Vth) can be set to a variety of method. S210 and S220 step, performing an error correcting process chamber number communication can be included. Then, on the center of an device wearable device can be a desired data communication (S230). Method during data communication, the center of an device can receive a signal from a wearable device. These data in signal receiver receiving the envelope voltage input signal (reference 1 also, 120) (Ven) can be performing measurements (S230). Wearable device of signal receiver (120) threshold voltage (Vth) is Δ t1 (Ven) envelope voltage for a predetermined period of time can be greater than determined whether (S250). If, threshold voltage (Vth) predetermined time is greater than the envelope voltage Δ t1 (Ven), external assistance to the user diagnosis can be determined as a body contact. The number of wearable device can be interrupted immediately (S260). For example, threshold voltage (Vth) is greater than the envelope voltage time Δ t1 (Ven) and generates the signal receiver (120) communicated to interruption signals with other wearable device, perform the communication disruption, for contacting a body of a user and can be external to a notification signal. While, if, threshold voltage (Vth) Δ t1 envelope voltage is greater than a predetermined time (Ven) not, step S230 can be in progress. Then, data receiving process signal receiver (120) input signal envelope voltage (Ven) can be performing measurements (S270). Signal receiver (120) threshold voltage (Vth) is Δ t2 envelope voltage (Ven) for a predetermined period of time can be determined whether less than (S280). If, signal receiver (120) threshold voltage (Vth) is Δ t2 envelope voltage for a predetermined time (Ven) than small, step S230 can be in progress. I.e., signal receiver (120) the received signal of a predetermined time envelope voltage (Vth) when greater than Δ t2 SW2 (Ven), no external anti contacting a voltage rises, normal communications can be resumed. While, threshold voltage (Vth) is less than a predetermined time (Ven) if Δ t2 envelope voltage, step S270 can be in progress. According to the example of the present invention embodiment coupling to avoid using wearable device is, by having the above-mentioned sensing device (also 4, 124), to avoid coupling scheme communication method used by the wearable device in use, user can occur in the context of body contacting with unexpected an initializing method for preventing leakage of communication data of a user can be. In addition, according to the example of the present invention embodiment wearable device, to avoid coupling utilized to have physical communication characteristics of the data communication security by implementing, for identifying additional sensor security markings can be minimize without implementation complexity. According to the method of the present invention embodiment for securing data of example wearable device, use of only human wearable device selecting unit with a reference value set up the normal communication due to anti, lower voltage value by determining threshold voltage value with a preset reference value, threshold voltage value is lower than the magnitude of the received signal for some period of time States of assistance to the user when the body contact can be joined together by a communications cease. On the other hand, the method of the present invention applicable to wearable device and data security wearable device disclosed. Figure 7 shows a example of the present invention embodiment also wearable micro according to (10) show illustratively a surface are disclosed. The reference also 7, wearable micro (10) includes a plurality of radio (wireless) communication is performed, data (Image, photograph, character) or an equivalent, and data for display wristwatch hereinafter (11) for a user wearing wrist hereinafter for watch band (12) having a predetermined wavelength. Wristwatch (11) comprises a processor, memory, input and output (I/O) device, display, communication interface, sensors, and a power management unit can be. Processor, memory, input device, communication interface, and the sensors can be connected to one another via system bus. At least one processor core of single processor, or at least one of the cores of can be multiband chip antenna having processors. Wristwatch (11) also includes 1 to 6 as also shown in human communications signal transmitter (110) or signal receiver (120) can be comprising. The processor with output device, audio frequency commands by a user, receiving, converting and processing can be implemented to. For example, audio CODEC can be used. The processor operating system (OS) application execution of instructions only can be. The processor device configurations on communications between command interaction and input-output device be number. For example, the OS, but not one number, Linux for preparing substituted (Linux AndroidTM , For preparing substituted wear (Android Wear), and the like be. Memory includes at least one of each other can be memory. E.g., (e.g., DRAM, SARM) RAM, ROM, cache, virtual micro drive, hard disks, micro SD cards, and flash memory can be like. Information output device that outputs information is inputted to the set of configurations are disclosed. For example, or a data input, or output, or the output device contains at least one of processing, microphone, maul new gong, camera, comprising and the speaker can be. Output device comprises an audio chip, a touch screen and display number further comprises anxiety can be violations of the number. The communication interface can include a one-way or two-way radio communication both forward and backward and configurations, several implementations, the sensor signal of the remaining implementing interface, or multiple interface for wireless communication network comprising a number of wireless network interfaces can be law (or, similar configurations). In the example embodiment, the communication interface, for receiving data remotely preferentially present. Wherein data is displayed in updating or streaming data are disclosed. However, number data and selectively transmitted, the communication interface can be voice transmission number. In the example embodiment, the communication interface (radio frequency) communications supporting intermediate power RC can be low. In embodiment example, types of wireless communication is, BLE (Bluetooth Low Energy), WLAN (wireless local area network), WiMAX, RFID (radio frequency identification) manual, network adapter comprising and modems can be. However, in another embodiment example, radio communication type, WAN (wide area network) interface, Wi-a Fi, WPAN, multi - hop network gate, or cellular network (e.g., 3G, 4G, 5G, or LTE (long term evolution)) can be like. UWB (ultra wide band) and IR (infrared) remaining wireless options can be like. In addition, the communication interface system for number different types, e.g., contacts the sailing Serial communication, and/hoc USB communications include disclosed. For example, USB micro USB type, flash drive, or other wired connections are used communication interface can be used with. In the example embodiment, display wristwatch (11) can be integrated. In another embodiment example, display wristwatch (11) can be from external. Display can be flat or curved. It became the [tu wherein the curve is a portion of a body wearable sensor platform is located (e.g., wrist, ankle, head, or the like) having a curvature substantially to which means that the other. A touch screen display comprising the number or number which can be . OLED (organic light emitting diode) display display, TFT LCD (thin-a film transistor liquid crystal display), or can be a suitable display techniques. Display has an active - can be matrix. For example, implementation being SLCD displayed or AMOLED display. Display 3D or flexible can. The sensors can be sensors that are MEMS (Microelectromechanical systems). Such sensors can be like the accelerometer/gyroscope and thermometer. Power management unit causes the power source can be connected to, wristwatch (11) as part of the power functions can be micro controller communication and/plower hoc number. Communication with the power management unit causes the processor, power management adjusting substrate. In the example embodiment, to decide whether the power management unit causes the power level falls below a certain value. In another embodiment example, the power management unit causes the number 2 has been to decide for charging period of time has elapsed. Permanent or detachable power source battery, fuel cell or photo voltage cell, and the like be. Batteries can be disposable. In the example embodiment, a rechargeable power source, such as lithium ion batteries or can be comprising. Go back and battery recharge power management unit causes the voltage number can be a filling number comprising anxiety. In one implementation, at least one power source can be used as solar cells. In addition AC/DC power supply can be charged by the power source. Power source can be a non-contact or contact by means of a filling. In the example embodiment, power management unit causes the power interface through communication and/battery power supply hoc number be detachable to the sensor module. In embodiment example, wristwatch batteries (11) can be embedded. In another embodiment example, wristwatch batteries (11) lies outside of can be. As shown in fig. 7, wristwatch (11) outwardly of the display of the circular (circle type) or round form (round type) can be implemented. I.e., wristwatch (11) has a circular display panel comprises. In addition, wristwatch (11) is, wired charging or wireless charging voltage for charging a battery (not shown) manner can be built. The wireless charging scheme is magnetic induction, magnetic resonance, electromagnetic induction, wave non-radiation such as various wireless charging at least one of wireless charging (witricity) can be. On the other hand, wristwatch batteries (11) rather than watch band (12) may be configured to embedded disapproval. In addition, watch band (12) includes at least one physiological data from a user, i.e. health data sensing health sensor (13) can be with. For example, health sensor, wearable micro (10) of a wearer of the heart, oxygen concentration of a blood vessel, sensing body temperature, blood pressure, blood glucose, or the like can be sensing body fat. Wearable device according to the present invention according to avoid coupling communication method used in data security method, to avoid coupling communication using user wearable device, unexpected an initializing communication information generated by said body contacting with user behavior can be a mover without separate outflow can be number method. In addition, invention-in number in the additional method of drug, which is driven by security software, to avoid coupling the battery has implemented using physical communication characteristics required complexity can be minimize. On the other hand, the contents of the embodiment of the present invention invention for specific embodiment in the above-mentioned examples are in disclosed. The present invention refers to specific means and chamber which is utilizable in a number as well as itself, utilizing the general outline and plastics technology can be abstract idea will include a technical idea are disclosed. 100: Human body communication system using 110: Signal transmitter 120: Signal receiver 130: Human 101: Ground ground 112, 122: PCB ground 111, 121: Signal electrode 124: Sensing device 124 - 1: Envelope detector 124 - 2: Voltage comparator A method for operating a wearable device according to the present invention includes the following steps: setting a threshold voltage when there is no physical contact of an outsider; measuring an envelope voltage while performing data communication; determining whether there is a physical contact by comparing the threshold voltage with the envelope voltage; and stopping the data communication when there is the physical contact of the outsider. Accordingly, the present invention can automatically and quickly block the leakage of user′s communication data caused by an unexpected physical contact of an outsider. COPYRIGHT KIPO 2018 In wearable device method for securing data of: contacting a first thickness is formed on the external no; data communication performance measuring voltage envelope; said envelope voltage by comparing said threshold voltage and determining whether said external contacting a; and said external when contacting a, said data communications cease including method steps. According to Claim 1, first thickness is formed on said step, said external contacting a no measuring voltage envelope; said envelope to obtain the average value of the measured amount of voltage; and said determined voltage by said voltage threshold voltage is subtracted in advance on the average set up including method. According to Claim 1, first thickness is formed on said step, said external envelope had there been no contacting a measuring voltage; measuring to obtain the maximum value of said envelope voltage; and said determined voltage by said voltage threshold voltage is subtracted in advance on the maximum set up including method. According to Claim 1, said step of communicating the data, to avoid coupling (capacitive coupling) is used communication method including method performing the communications between the wearable device. According to Claim 4, each of said wearable device station number standard IEEE 802. 15. 6 WBAN according (wireless body area network) communication method. According to Claim 1, with an external contacting said step, said determining a third time threshold voltage to determine whether said number 1 envelope including method. According to Claim 6, if said envelope voltage not greater than said threshold voltage, said data communication continue on into the further including method. According to Claim 6, said third threshold voltage if said envelope, said external human body contacting that a further including method determining. According to Claim 8, when the external contacting said microchips, said data communication is stopped, said external user contacting notification in a further including method. According to Claim 9, after said data communications cease, measuring the voltage envelope of the received signal; and said threshold voltage lower than said number 2 time determining if a measured envelope further including method. According to Claim 10, said number 2 said envelope voltage is lower than a threshold voltage measuring said time, said data communication was interrupted further including method. According to Claim 10, said number 2 threshold voltage lower than said time said measured envelope if not, further including method of the received signal envelope voltage again measured. A signal receiver to receive a signal through a human body; said envelope detector an envelope voltage of the received signal; comparing the voltage comparator and said envelope voltage and a threshold voltage, said threshold voltage is measured when the external contacting a free envelope voltage is subtracted by a predetermined voltage value and, when performing data communication with the signal transmitter, said third threshold voltage if the measured envelope, said data corresponding to said received signal is transmitted to signal transmitter signal communication is stopped or suspended resin wearable device. According to Claim 13, said threshold voltage of said third voltage comparator is number 1 time and determines whether the method during data communication said envelope, said envelope said third time threshold voltage if said number 1, said data communication is stopped or suspended resin wearable device is transmitted to said signal said signal transmitter. According to Claim 13, said voltage comparator is said data communication is interrupted after a period of time after said signal is transmitted with said resin or number 2 if a voltage less than said threshold voltage while the envelope, said envelope voltage if said number 2 time less than said threshold voltage, said data communication is resumed the wearable device. According to Claim 13, human contact with the signal electrode; and said PCB (printed circuit board) implemented signal receiver further including ground wearable device. In wearable device for receiving data of method: for data communication signal for transmission via the outside connects the receiving; said step of measuring a voltage of the received signal envelope; said filtering and amplification of the received signal; comparing said amplified signal envelope voltage threshold voltage; and said predetermined period of time said envelope voltage is less than the threshold voltage, said block including method data communication. According to Claim 17, said capacitive circuits for data transmission coupling device by using the data communication method. According to Claim 17, said data communication cost, further including method steps of setting said threshold voltage. According to Claim 17, first thickness is formed on said step, a predetermined period of time by using mean value measured received signal envelope voltage steps of setting said threshold voltage; and said setting threshold voltage storing data corresponding including method.