Method for transmitting and receiving vital signs in a continuous blood glucose monitoring system

Abstract

A method for transmitting and receiving biological information between a sensor transmitter and a communication terminal is provided. The method includes generating a biometric information message including biometric information measured by a measurement sensor in a sensor transmitter and transmitting the biometric information message to a communication terminal at regular communication intervals, and generating a non-received request message in the communication terminal requesting biometric information not received by the communication terminal from among the biometric information stored in the sensor transmitter and transmitting the non-received request message from the sensor transmitter at regular communication intervals, the non-received communication interval being longer than the regular communication interval.

Description

[Technical field]

[0001] The present invention relates to a method for transmitting and receiving biometric information between a sensor transmitter and a communication terminal in a continuous blood glucose measurement system, and more particularly, to a method for transmitting and receiving biometric information that does not determine whether biometric information has been successfully transmitted and received between a sensor transmitter and a communication terminal in each regular communication cycle, but determines whether unreceived biometric information exists only in an unreceived communication cycle that is relatively longer than the regular communication cycle, and receives the unreceived biometric information if unreceived biometric information exists, thereby determining whether unreceived biometric information exists in each regular communication cycle, and reducing the required calculation load and the energy waste required for receiving unreceived biometric information in each regular communication cycle. [Background technology]

[0002] Diabetes is a chronic disease that occurs frequently among modern people, and in Korea, it affects more than 2 million people, or 5% of the total population.

[0003] Diabetes occurs when there is an absolute or relative deficiency of insulin produced by the pancreas due to various causes such as obesity, stress, poor eating habits, and congenital genetics, which prevents the blood from quickly balancing the sugar levels, resulting in an absolute excess of sugar in the blood.

[0004] Blood normally contains a certain concentration of glucose, from which tissue cells obtain their energy.

[0005] However, if glucose levels increase more than necessary, it cannot be properly stored in the liver, muscles, or fat cells and instead accumulates in the blood. As a result, diabetics maintain blood sugar levels much higher than normal people, and the excess blood sugar passes directly through the tissues and is excreted in the urine, causing a shortage of sugar, which is absolutely necessary for each tissue of the body, and causing abnormalities in each tissue.

[0006] Diabetes is characterized by the fact that in the early stages there are almost no noticeable symptoms, but as the disease progresses, symptoms specific to diabetes such as excessive drinking, eating, urination, weight loss, general fatigue, itchy skin, and persistent wounds on the hands and feet that do not heal appear. As the disease progresses further, advanced complications such as vision impairment, high blood pressure, kidney disease, stroke, periodontal disease, muscle spasms and neuralgia, and gangrene appear.

[0007] In order to diagnose and manage diabetes so that it does not progress to other diseases, systematic blood glucose measurement and treatment must be carried out simultaneously.

[0008] Diabetes requires constant monitoring of blood glucose levels to be managed, and the demand for blood glucose monitoring and related devices is steadily increasing. It has been confirmed through various studies that if diabetic patients strictly control their blood glucose levels, the occurrence of diabetic complications is significantly reduced. Therefore, it is very important for diabetic patients to regularly monitor their blood glucose levels to control their blood glucose levels.

[0009] Generally, blood glucose meters using the finger prick method are used to manage blood glucose levels of diabetic patients, but since the finger prick method helps diabetic patients manage their blood glucose levels, it is difficult to accurately grasp blood glucose levels that change frequently because it only shows the results at the time of measurement. Also, blood glucose meters require blood sampling every time to measure blood glucose levels at any time throughout the day, which places a heavy burden on diabetic patients.

[0010] Diabetic patients generally go through hyperglycemic and hypoglycemic states, but emergency situations occur during hypoglycemic states. Hypoglycemic states occur when sugar is not sustained for a long period of time, and can result in loss of consciousness or, in the worst case, loss of life. Therefore, it is very important for diabetic patients to detect hypoglycemic states immediately. However, blood glucose measuring devices that measure blood glucose intermittently have clear limitations.

[0011] To overcome the limitations of blood glucose meters, a Continuous Glucose Monitoring System (CGMS) has been developed that is inserted into the human body to measure blood glucose at intervals, and can be used to easily manage diabetic patients and respond to emergency situations.

[0012] The continuous blood glucose measurement system is composed of a sensor transmitter that is attached to a part of the user's body to extract body fluids and measure blood glucose, and a communication terminal that outputs the transmitted blood glucose value. With the sensor inserted into the human body, the sensor transmitter measures the user's blood glucose for a certain period of time, for example about 15 days, and generates blood glucose information. The sensor transmitter periodically generates blood glucose information, and the communication terminal periodically receives the blood glucose information and outputs the received blood glucose information so that the user can check it.

[0013] In the above-described continuous blood glucose measurement system, the sensor transmitter and the communication terminal transmit and receive blood glucose information by wired or wireless communication, and the communication terminal must continuously receive transmission packets from the sensor transmitter without loss.

[0014] However, due to a temporary communication interruption between the sensor transmitter and the communication terminal or the user's immaturity, the communication terminal may not be able to continuously receive blood glucose information from the sensor transmitter, which may result in the user being unable to continuously monitor his or her own blood glucose information through the communication terminal.

[0015] In such a case, the blood glucose information that could not be received must be obtained, but only the blood glucose information that the user determines is necessary must be received before the blood glucose information stored in the sensor transmitter is deleted, excluding unreceived blood glucose information that the user determines is unnecessary, and there is a demand for a method of receiving unreceived blood glucose information without wasting limited energy. DISCLOSURE OF THEINVENTION [Problem to be solved by the invention]

[0016] The present invention is intended to solve the problems of the conventional method for transmitting and receiving biometric information as mentioned above, and an object of the present invention is to provide a method for transmitting and receiving biometric information, in which a communication terminal determines whether there is any unreceived biometric information from a sensor transmitter, and receives the unreceived biometric information if there is any unreceived biometric information.

[0017] Another object of the present invention is to provide a method for transmitting and receiving biometric information, which does not determine whether biometric information has been successfully transmitted and received between a sensor transmitter and a communication terminal during each regular communication period in which the sensor transmitter transmits biometric information to a communication terminal, but determines whether unreceived biometric information exists during only an unreceived communication period, and receives unreceived biometric information.

[0018] Another object of the present invention is to provide a method for transmitting and receiving biometric information, which allows a user to selectively receive unreceived biometric information only when requested by a user, even if there is unreceived biometric information in a communication terminal. [Means for solving the problem]

[0019] In order to achieve the object of the present invention, a method for transmitting and receiving biometric information according to the present invention includes the steps of generating a biometric information message having biometric information measured through a measurement sensor in a sensor transmitter and transmitting the biometric information message to a communication terminal at regular communication intervals, and generating a non-received request message in the communication terminal requesting biometric information not yet received by the communication terminal among the biometric information stored in the sensor transmitter and transmitting the non-received request message from the sensor transmitter at regular communication intervals, wherein the non-received communication intervals are longer than the regular communication intervals.

[0020] Here, the biometric information message is characterized by including a biometric information identifier.

[0021] Here, the non-reception request message includes an identifier of the biological information not received from the sensor transmitter during the non-reception communication period.

[0022] Here, the non-reception communication period is characterized by being shorter than the storage period between the time when the biometric information is generated by the sensor transmitter and the time when it is deleted.

[0023] Preferably, the method for transmitting biometric information according to the present invention further includes a step of determining whether there is any biometric information that has not been received by the communication terminal among the biometric information stored in the sensor transmitter for each unreceived communication period in the communication terminal, and if there is any unreceived biometric information, a step of outputting an indicator for notifying that there is any unreceived biometric information, and a step of determining whether a user command requesting the unreceived biometric information is input in response to the indicator, and if a user command requesting the unreceived biometric information is input, a step of generating a unreceived request message and transmitting it to the sensor transmitter.

[0024] Preferably, in one embodiment of the present invention, the non-received request message is generated through the steps of: determining whether the received biometric information identifier is consecutive to the last biometric information identifier last stored in the communication terminal based on the biometric information identifier every time the communication terminal receives a biometric information message from the sensor transmitter during the non-received communication cycle; determining an unreceived biometric information identifier between the received biometric information identifier and the last biometric information identifier if the received biometric information identifier is not consecutive to the last biometric information identifier; and generating a non-received request message having the unreceived biometric information identifier when the non-received communication cycle expires.

[0025] Preferably, in another embodiment of the present invention, the non-received request message is generated through a step of arranging biometric information received from a sensor transmitter during a non-received communication period in a communication terminal according to a biometric information identifier procedure, determining whether an unreceived biometric information identifier exists based on the arranged biometric information identifier, and generating a non-received request message having an unreceived biometric information identifier when the non-received communication period expires.

[0026] The method for transmitting and receiving biometric information according to the present invention further includes a step of determining in the communication terminal whether a biometric information message has been received from the sensor transmitter during a first communication interval set for each regular communication period, and a step of terminating communication with the sensor transmitter when the communication terminal receives the biometric information message during the first communication interval or when the first communication interval ends, and is characterized in that the communication with the sensor transmitter is terminated without a separate reception confirmation message when the biometric information message is successfully received during the first communication interval or when the biometric information message is unsuccessfully received during the first communication interval.

[0027] The method for transmitting and receiving biometric information according to the present invention further includes a step of determining whether an unreceived biometric information message having unreceived biometric information has been received from a sensor transmitter during a second communication interval set for each unreceived communication period in a communication terminal, and a step of receiving the unreceived biometric information message during the second communication interval in the communication terminal or terminating communication with the sensor transmitter when the second communication interval expires, and is characterized in that the method transmits a reception confirmation message to the sensor transmitter indicating whether the unreceived biometric information message has been successfully received during the second communication interval. Effect of the Invention

[0028] The method for transmitting and receiving biological information according to the present invention has the following advantages.

[0029] First, the method for transmitting and receiving biometric information according to the present invention does not determine whether biometric information has been successfully transmitted and received between the sensor transmitter and the communication terminal during each regular communication cycle in which the sensor transmitter transmits biometric information to the communication terminal, but determines whether unreceived biometric information exists only during unreceived communication cycles that are relatively longer than the regular communication cycle, thereby reducing the process load required for determining whether unreceived biometric information exists during each regular communication cycle and the energy waste required for receiving unreceived biometric information during each regular communication cycle.

[0030] Second, the method of transmitting and receiving biometric information according to the present invention generates a biometric information message transmitted and received between a sensor transmitter and a communication terminal at each regular communication cycle to include a biometric information identifier along with the biometric information, and can determine the biometric information that has not been received during the non-received communication cycle based on the biometric information identifier, and selectively receive only the unreceived biometric information.

[0031] Third, the method of transmitting and receiving biometric information according to the present invention outputs an indicator to a user when there is unreceived biometric information during a communication period, and receives the unreceived biometric information only when the user requests the unreceived biometric information based on the indicator, thereby allowing the user to selectively receive only the unreceived biometric information that is deemed necessary among the unreceived biometric information.

[0032] Fourth, the method of transmitting and receiving biometric information according to the present invention deletes and controls the indicator when a user command requesting unreceived biometric information is not input or when the user refuses to receive the unreceived biometric information so that a set time has elapsed after the indicator is output, thereby reducing the inconvenience to the user caused by unnecessary unreceived biometric information. [Brief description of the drawings]

[0033] [Figure 1] FIG. 1 is a schematic diagram showing a continuous biological information measuring system according to an embodiment of the present invention. [Diagram 2] FIG. 2 is a functional block diagram for explaining the sensor transmitter according to the present invention. [Diagram 3] FIG. 3 is a diagram for explaining an example in which bioinformation is generated by a sensor transmitter. [Figure 4] FIG. 4 is a diagram for explaining an example of generating a transmission packet in the sensor transmitter. [Diagram 5] FIG. 5 is a functional block diagram illustrating a communication terminal according to the present invention. [Figure 6]FIG. 6 is a diagram illustrating messages transmitted and received between a sensor transmitter and a communication terminal in a method for transmitting and receiving bioinformation according to the present invention. [Figure 7] FIG. 7 is a flow chart illustrating a method for transmitting and receiving biometric information at regular communication intervals according to the present invention. [Figure 8] FIG. 8 is a flow chart for explaining a method for transmitting and receiving unreceived biological information for each unreceived communication period according to the present invention. [Figure 9] FIG. 9 is a diagram for explaining an example of a regular communication period and a non-reception communication period. [Figure 10] FIG. 10 is a diagram for explaining a method for notifying a user of the existence of unreceived biometric information according to the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0034] It should be noted that the technical terms used in the present invention are merely used to describe a specific embodiment and are not intended to limit the present invention. In addition, unless otherwise specifically defined in the present invention, the technical terms used in the present invention should be interpreted in a way that is generally understood by a person having ordinary knowledge in the technical field to which the present invention belongs, and should not be interpreted in an overly comprehensive or overly narrow sense. In addition, when the technical terms used in the present invention are incorrect technical terms that cannot accurately express the idea of ​​the present invention, they should be replaced and understood by technical terms that can be correctly understood by a person skilled in the art.

[0035] In addition, singular expressions used in the present invention include plural expressions unless the context clearly dictates differently. In the present invention, terms such as "comprise" or "include" should not be interpreted as including all of the components or steps described in the invention, but rather as including some of the components or steps that may not be included, or may further include additional components or steps.

[0036] It should also be noted that the attached drawings are intended to facilitate understanding of the concept of the present invention and should not be construed as limiting the concept of the present invention.

[0037] Hereinafter, the method for transmitting and receiving biometric information according to the present invention will be described in more detail with reference to the accompanying drawings.

[0038] FIG. 1 is a schematic diagram showing a continuous biological information measuring system according to an embodiment of the present invention.

[0039] Referring to FIG. 1, a continuous biological information measuring system 1 according to an embodiment of the present invention includes a sensor transmitter 10 and a communication terminal 30.

[0040] The sensor transmitter 10 is attached to the body, and when the sensor transmitter 10 is attached to the body, one sensor end of the sensor transmitter 10 is inserted into the skin to periodically extract body fluids and measure biological information.

[0041] The communication terminal 30 is a terminal capable of receiving biometric information from the sensor transmitter 10 and displaying the received biometric information to a user, and may be a mobile terminal capable of communicating with the sensor transmitter 10, such as a smartphone, a tablet PC, or a notebook. Of course, the communication terminal 30 is not limited thereto, and may be any type of terminal that includes a communication function and can be installed with programs and applications.

[0042] The sensor transmitter 10 transmits the measured biometric information to the communication terminal 30 periodically at the request of the communication terminal 30 or at set times. For data communication between the sensor transmitter 10 and the communication terminal 30, the sensor transmitter 10 and the communication terminal 30 may be connected to each other by a wired communication method such as a USB cable, or may be connected to each other by a wireless communication method such as infrared communication, NFC communication, Bluetooth (registered trademark), etc.

[0043] Here, the communication terminal 30 determines whether there is any unreceived biometric information from the sensor transmitter 10, and if there is any unreceived biometric information, provides an indicator to inform the user that there is unreceived biometric information, and receives the unreceived biometric information according to the user's selection.

[0044] Depending on the field to which the present invention is applied, the sensor transmitter 10 can measure various types of biological information such as blood glucose information, and the measured biological information can be transmitted and received between the sensor transmitter and a communication terminal.

[0045] FIG. 2 is a functional block diagram for explaining the sensor transmitter according to the present invention.

[0046] More specifically, referring to FIG. 2, the sensor module 110 includes a sensor, which is partially inserted into the body to measure biological information.

[0047] The sensor control unit 130 receives the measured biological information from the sensor module 110 and stores the received biological information in the storage unit 150. Here, the biological information that the sensor control unit 130 receives from the sensor module 110 is an analog signal, but the sensor control unit 130 can remove noise from the analog signal and convert it back to a digital signal to generate biological information.

[0048] The transmission packet generating unit 170 generates a transmission packet having biometric information from the biometric information stored in the memory unit 150, and the transmission packet generating unit 170 generates a transmission packet including a biometric information identifier for identifying the biometric information each time a transmission packet is generated.

[0049] The sensor control unit 130 transmits an advertisement message to the communication terminal through the sensor communication unit 190 at each regular communication period, and controls the communication terminal to transmit the generated transmission packet while connecting with the communication terminal. If the communication interval allocated to the regular communication period has elapsed, the sensor control unit 130 immediately terminates communication without receiving an acknowledgement message from the communication terminal to confirm whether the transmission packet has been successfully received.

[0050] Meanwhile, when the sensor control unit 130 receives a not-received biometric information request message from the communication terminal by connecting with the communication terminal for each not-received communication cycle, it extracts the not-received biometric information corresponding to the not-received biometric information identifier from the storage unit 150 based on the not-received biometric information identifier included in the not-received communication request message, and generates an not-received biometric information message made of the extracted not-received biometric information. The sensor control unit 150 transmits the not-received biometric information message to the communication terminal during a communication interval assigned to the not-received communication cycle, and the sensor control unit 150 determines whether the not-received biometric information message has been successfully transmitted based on a confirmation message received from the communication terminal during the communication interval.

[0051] The sensor control unit 130 stores the biometric information in the memory unit 150 for a storage period from the time the biometric information is generated, and when the storage period ends, sequentially deletes the stored biometric information. However, before the biometric information is deleted, the sensor control unit 130 transmits unreceived biometric information to the communication terminal for each unreceived communication period, thereby safely transmitting the generated biometric information to the communication terminal.

[0052] Preferably, if the unreceived biometric information is not successfully transmitted to the communication terminal through the confirmation message, the sensor control unit 130 can delete the biometric information stored in the memory unit 150 except for the unreceived biometric information, and when the next unreceived communication cycle arrives, the unreceived biometric information that could not be transmitted previously can be transmitted to the communication terminal.

[0053] FIG. 3 is a diagram for explaining an example in which bioinformation is generated by a sensor transmitter.

[0054] First, the data on the biosignal measured by the sensor transmitter is measured at a predetermined interval, and once a measurement is started, it can be measured several times. For example, the sensor transmitter measures the biosignal data every 10 seconds. At this time, the biosignal is measured 30 times each time a measurement is started, and the time required for measuring the biosignal may be 1 second. Therefore, the sensor transmitter measures analog biosignal data 30 times every 10 seconds.

[0055] That is, as an example, biometric information can be measured 30 times between 2:14:25 and 2:14:26 PM, and then again 30 times between 2:14:35 and 2:14:36 ​​PM, such that biometric information can be measured at 10 second intervals.

[0056] The biosignal data measured in this way is converted into a digital signal. The sensor transmitter calculates the average value of the 30 pieces of bioinformation data converted into digital signals using the cutting average method to calculate one average value every 10 seconds. At this time, the top 7 and bottom 7 pieces of data are removed from the 30 pieces of bioinformation data, and the average value (A) of the remaining 16 pieces of data is calculated.

[0057] The cutting average value (A) calculated in this manner can be generated in 10-second units, and as shown in the figure, six cutting average values ​​(A1 to A6) can be generated for one minute.

[0058] In addition, six cutting average values ​​(A1-A6) are generated per minute, and the generated six cutting average values ​​(A1-A6) are used to generate a secondary cutting average value (B1). At this time, the generated secondary cutting average value (B1) is calculated by removing the maximum and minimum values ​​from the six cutting average values ​​(A1-A6) and averaging the remaining four values. Therefore, biometric information is generated from one secondary cutting average value (B) per minute.

[0059] The biometric data generated every minute in this manner is stored in the sensor transmitter, and the stored biometric information can be generated as a transmission packet at regular communication intervals and transmitted to the communication terminal.

[0060] FIG. 4 is a diagram for explaining an example of generating a transmission packet in a sensor transmitter. Looking at the example of generating a transmission packet in detail with reference to FIG. 4(a), the set biometric information generation cycle (T P ) sequentially generates biometric information (B1, B2, B3, B4, B5, B6, ...), and each time biometric information is generated, a transmission packet (P1, P2, P3, P4, P5, P6) having the corresponding biometric information is generated. When a transmission packet is generated, a unique series of identifiers are assigned according to the transmission packet generation procedure, and the transmission packet is generated to have the biometric information identifier and the biometric information. Preferably, a sequence that sequentially increases according to the transmission packet generation procedure can be assigned to the biometric information identifier, or the generation time of the transmission packet can be assigned to the biometric information identifier.

[0061] The generated transmission packets (P1, P2, P3, P4, P5, P6) are stored in the memory unit, but the set regular communication cycle (T S ) arrives, the transmission packets (P1, P2, P3, P4, P5) stored in the memory unit are sent to the communication terminal.

[0062] Looking at another example of generating a transmission packet in detail with reference to FIG. 4(b), the set biometric information generation cycle (T P) is generated in sequence (B1, B2, B3, B4, B5, B6, ...), and each time the biometric information is generated, it is stored in the memory and the set regular communication cycle (T S ) arrives, a transmission packet (P1) including all of the biometric information (B1, B2, B3, B4, B5) stored in the memory unit up to the regular communication cycle is generated, and the generated transmission packet (P1) is transmitted to the communication terminal.

[0063] FIG. 5 is a functional block diagram illustrating a communication terminal according to the present invention.

[0064] 5, when the terminal control unit 210 receives an advertisement message transmitted from the sensor transmitter at regular communication intervals set through the terminal communication unit 230, the terminal control unit 210 establishes communication with the sensor transmitter through the terminal communication unit 230. When the terminal control unit 210 establishes communication with the sensor transmitter, the terminal control unit 210 receives biometric information from the sensor transmitter through the terminal communication unit 230 and stores the received biometric information in the storage unit 250. The terminal control unit 210 ends communication with the sensor transmitter when the communication interval has elapsed, or ends communication with the sensor transmitter even before the communication interval has elapsed when it completes receiving a transmission packet from the sensor transmitter.

[0065] Meanwhile, the biometric information management unit 240 determines whether there is any unreceived biometric information during the set unreceived communication period based on the identifier of the biometric information stored in the memory unit 250. If there is any unreceived biometric information, the terminal control unit 210 generates a unreceived request message including the unreceived biometric information identifier and transmits it to the sensor transmitter via the terminal communication unit 230.

[0066] Here, the biometric information management unit 240 aligns the biometric information stored in the unreceived communication cycle memory unit 250 in an identifier sequence, determines non-consecutive biometric information identifiers based on the biometric information identifiers, and determines the biometric information of the non-consecutive biometric information identifiers based on the unreceived biometric information.

[0067] Preferably, when there is unreceived biometric information, the terminal control unit 210 generates an indicator indicating whether there is unreceived biometric information, the number of unreceived biometric information, etc., and displays information on the generated indicator on the display unit 270 to inform the user that there is unreceived biometric information. When a user command to receive unreceived biometric information is input from the user interface 290, a non-receive request message having an unreceived biometric information identifier is generated according to the user command, and transmitted to the sensor transmitter via the terminal communication unit 230.

[0068] When the terminal control unit 210 receives unreceived biological information from the sensor transmitter in response to a non-received request message at each non-received communication period, the terminal control unit 210 controls the storage unit 250 to store the received unreceived biological information.

[0069] Preferably, when a user command to refuse to receive unreceived biometric information is input in response to the displayed indicator, the terminal control unit 210 deletes the displayed indicator and does not generate a separate unreceived request message.

[0070] Preferably, if no user command is input within a set time from the time the indicator is displayed, the terminal control unit 210 may delete the displayed indicator and not generate a separate non-receipt request message.

[0071] Preferably, if a user command is not input within a set time from the time the indicator is displayed, the terminal control unit 210 outputs a message to the display unit to notify that there is unreceived biometric information, and a user command to refuse to receive the unreceived biometric information is input in response to the message, or if a user command is not input again within a set time from the time the message is output to the display unit, the terminal control unit 210 may delete the displayed indicator and not generate a separate unreceived request message.

[0072] FIG. 6 is a diagram illustrating messages transmitted and received between a sensor transmitter and a communication terminal in a method for transmitting and receiving bioinformation according to the present invention.

[0073] More specifically, referring to FIG. 6, the sensor transmitter transmits an advertisement message to a nearby communication terminal at regular communication intervals (S1).

[0074] In response to the advertisement message, the communication terminal transmits an information request message to the sensor transmitter to establish communication between the communication terminal and the sensor transmitter (S2). Preferably, the sensor transmitter transmits a unique sensor transmitter identifier to the communication terminal in an advertisement message, and the communication terminal can authenticate the sensor transmitter based on the sensor transmitter identifier and establish communication with the corresponding sensor transmitter.

[0075] When communication is established between the sensor transmitter and the communication terminal, the sensor transmitter transmits a transmission packet having biometric information generated by the sensor transmitter to the communication terminal during a set communication interval (S3). Preferably, the transmission packet includes a biometric information identifier for identifying the biometric information. When the set communication interval has elapsed, the communication connection is terminated, or when the communication terminal receives a transmission packet, the communication connection is terminated even before the communication interval has elapsed.

[0076] The sensor transmitter and the communication terminal repeat steps S1, S2, and S3 described above for each regular communication period to transmit and receive a transmission packet including biometric information generated by the sensor transmitter.

[0077] On the other hand, when the non-received communication period comes, the communication terminal determines the biometric information that has not been received from the sensor transmitter during the non-received communication period, and transmits a non-received request message having an unreceived biometric information identifier for identifying the unreceived biometric information to the sensor transmitter (S6).

[0078] In response to the not-received request message, the sensor transmitter and the communication terminal are connected to communicate for a set communication interval, and the communication terminal that receives the not-received request message determines the biometric information corresponding to the not-received biometric information identifier included in the not-received request message and transmits a transmission packet including the determined not-received biometric information to the communication terminal during the communication interval (S7).

[0079] The communication terminal determines whether biometric information corresponding to an unreceived biometric information identifier has been received from the sensor transmitter during a communication interval and transmits a confirmation message to the sensor transmitter. If the communication terminal successfully receives the biometric information corresponding to the unreceived biometric information identifier, it generates a reception success message and transmits it to the sensor transmitter, and if the communication terminal fails to receive the biometric information corresponding to the unreceived biometric information identifier, it generates a reception failure message and transmits it to the sensor transmitter.

[0080] Preferably, the communication terminal determines whether an unreceived communication cycle has arrived and transmits an unreceived request message to the sensor transmitter to start receiving the unreceived biometric information, and the sensor transmitter determines whether an unreceived communication cycle has arrived and transmits an advertisement message for transmitting and receiving the unreceived biometric information to the communication terminal to start receiving the unreceived biometric information.

[0081] FIG. 7 is a flow chart illustrating a method for transmitting and receiving biometric information at regular communication intervals according to the present invention.

[0082] More specifically, referring to FIG. 7, it is determined whether a regular communication cycle has arrived (S110).

[0083] If the regular communication period has arrived, the communication terminal determines whether an advertisement message has been received from the sensor transmitter (S130).

[0084] When receiving an advertisement message, the communication terminal transmits a reception request message to the sensor transmitter to establish communication with the sensor transmitter (S150).

[0085] When communication is established between the sensor transmitter and the communication terminal, the sensor transmitter transmits a transmission packet including biometric information to the communication terminal during a communication interval assigned to a regular communication period, and the communication terminal determines whether it has received a transmission packet from the sensor transmitter during the communication interval (S160).

[0086] If the communication terminal receives a transmission packet during the communication interval, the communication terminal terminates the communication connected to the sensor transmitter (S190). Preferably, if the communication terminal receives a transmission packet, the communication terminal can terminate the communication connected to the sensor transmitter even before the assigned communication interval expires.

[0087] Meanwhile, it is determined whether the communication interval has expired, and if it has not yet expired, it is determined whether a transmission packet has been continuously received during the communication interval (S170), and even if no transmission packet has been received from the sensor transmitter until the communication interval expires, the communication between the sensor transmitter and the communication terminal is terminated (S190).

[0088] FIG. 8 is a flow chart for explaining a method for transmitting and receiving unreceived biological information for each unreceived communication period according to the present invention.

[0089] More specifically, referring to FIG. 8, it is determined whether a non-receiving communication period has arrived (S210).

[0090] When a non-received communication period comes, the communication terminal generates a non-received request message and transmits it to the sensor transmitter (S220). When a non-received communication period comes, it is determined whether there is unreceived biometric information during the non-received communication period and, if there is unreceived biometric information, an unreceived biometric information identifier is determined (S220). The sensor transmitter assigns a biometric information identifier that increases sequentially each time it generates biometric information, and preferably, the communication terminal determines whether there is unreceived biometric information and the unreceived biometric information identifier based on the continuity of the identifier of the biometric information received during the non-received communication period. That is, if there is a missing biometric information identifier based on the continuity of the identifier of the biometric information received during the non-received communication period, it can be determined that there is unreceived biometric information.

[0091] If there is unreceived biometric information, a non-received request message including an unreceived biometric information identifier is generated and transmitted to the communication terminal (S230).

[0092] During a communication interval assigned to the unreceived communication period, communication is established between the sensor transmitter and the communication terminal, and it is determined whether unreceived biological information has been received from the sensor transmitter in response to a unreceived request message during the communication interval (S240).

[0093] When all unreceived biometric information corresponding to the unreceived biometric information identifier is received, a reception success message is generated and transmitted to the sensor transmitter (S250), and communication between the sensor transmitter and the communication terminal is terminated (S290). Preferably, when all unreceived biometric information is received, the communication terminal can terminate communication connected to the sensor transmitter even before the assigned communication interval expires.

[0094] Meanwhile, it is determined whether the communication interval has expired, and if it has not yet expired, it is determined whether unreceived biometric information has been received continuously during the communication interval (S270), and if it is not possible to receive all of the unreceived biometric information from the sensor transmitter until the communication interval expires, a reception failure message is generated and transmitted to the sensor transmitter (S280).After transmitting the reception failure message, the communication between the sensor transmitter and the communication terminal is terminated (S290).

[0095] FIG. 9 is a diagram for explaining an example of a regular communication period and a non-reception communication period.

[0096] Looking more specifically at Figure 9, the regular communication cycle (T S The communication terminal does not transmit a confirmation message to the sensor transmitter as to whether or not the biometric information transmitted in each regular communication cycle has been successfully received, and the sensor transmitter also terminates communication with the communication terminal when a communication interval assigned to the regular communication cycle ends, regardless of whether or not the biometric information has been successfully transmitted.

[0097] On the other hand, the unreceived communication period (T H ) the communication terminal requests and receives the unreceived biometric information during the unreceived communication period from the sensor transmitter, and the communication terminal generates a confirmation message regarding whether the unreceived biometric information has been successfully received and transmits it to the sensor transmitter, and the sensor transmitter determines whether the unreceived biometric information has been successfully transmitted based on the confirmation message.

[0098] Here, the unreceived communication period (T H ) is the regular communication cycle (T S), the sensor transmitter or the communication terminal does not separately check whether the biometric information has been successfully transmitted or received in each regular communication cycle, or does not transmit or receive a confirmation message for checking whether the biometric information has been successfully transmitted or received in each regular communication cycle. Instead, it determines whether unreceived biometric information exists only in the unreceived communication cycle, requests and receives the unreceived biometric information, and transmits or receives a confirmation message for whether the unreceived biometric information has been successfully received, thereby reducing the necessary calculation load and energy waste.

[0099] Here, the unreceived communication period (T H ) is the storage period (T M ), but before the biometric information generated by the sensor transmitter is deleted by the sensor transmitter, the unreceived biometric information can be requested and the unreceived biometric information can be safely received.

[0100] FIG. 10 is a diagram for explaining a method for notifying a user of the existence of unreceived biometric information according to the present invention.

[0101] As shown in FIG. 10, when a non-receiving communication period comes, it is determined whether or not there is any unreceived biological information during the non-receiving communication period (S221).

[0102] If there is unreceived biometric information, an indicator for notifying the user of the presence of unreceived biometric information is output to the display unit (S223). Here, the indicator may include information on whether there is unreceived biometric information, the number of unreceived biometric information, whether the unreceived biometric information belongs to a dangerous area or a normal area, etc. Here, the area to which the unreceived biometric information belongs is predicted based on the area to which the received biometric information adjacent to the unreceived biometric information belongs.

[0103] It is determined whether a user command for checking unreceived biometric information is input through the user interface unit (S225), and it is determined whether a user command is input so that a set time elapses (S226).

[0104] If a user command is not inputted for the set time to elapse, the displayed indicator is deleted to prevent the user from experiencing inconvenience that may occur due to the continued display of the indicator (S227).Preferably, if a user command is not inputted for the set time to elapse, a message notifying that there is unreceived biometric information can be displayed again on the display unit, and if a certain time has elapsed after the message is displayed, the indicator can be deleted.

[0105] Meanwhile, when a user command is input, it is determined whether the input user command is a user command to refuse to confirm unreceived biometric information (S228), and if the input user command is a command to refuse confirmation, the displayed indicator is deleted to prevent the user from experiencing inconvenience that may occur due to the continued display of the indicator (S227).However, if the input user command is a command to confirm, a non-reception request message is generated and transmitted to the sensor transmitter (S229).

[0106] In this manner, an indicator is displayed to inform the user of the existence of unreceived biometric information, but if a user command to check the unreceived biometric information is not input for a set time or if the user confirms that checking the unreceived biometric information is unnecessary, the indicator is deleted, and unreceived biometric information is selectively requested only when the user requests unreceived biometric information, thereby reducing the computational load and energy waste required to send and receive unnecessary unreceived biometric information.

[0107] Meanwhile, the above-described embodiments of the present invention can be created as a program that can be executed by a computer, and can be embodied in a general-purpose digital computer that runs the program using a computer-readable recording medium.

[0108] The computer-readable recording medium includes storage media such as magnetic storage media (e.g., ROM (Read Only Memory), floppy disks, hard disks, etc.), optically readable media (e.g., CD-ROM, DVD, etc.) and carrier waves (e.g., transmission over the Internet).

[0109] The present invention has been described with reference to the embodiments shown in the drawings, but these are merely illustrative, and those skilled in the art will appreciate that various modifications and equivalent embodiments are possible. Therefore, the true technical scope of the present invention should be determined by the technical ideas of the appended claims.

Claims

1. A method for transmitting and receiving biometric information between a sensor transmitter disposed on a part of a user's body for measuring the biometric information of the user and a communication terminal for receiving the biometric information from the sensor transmitter, comprising: The sensor transmitter generating a biometric information message including biometric information measured by the measurement sensor; The biometric information message is transmitted to the communication terminal every regular communication period. Stages and By the communication terminal, During a non-reception communication period, it is determined whether or not there is unreceived biological information that is biological information that has not been received from the sensor transmitter among the biological information stored in the sensor transmitter; outputting an indicator for notifying the user of the presence of unreceived biometric information when the biometric information has not been received; determining whether a user command requesting unreceived biometric information is input in response to the indicator; generating a non-received request message for requesting the non-received biometric information when a user command for requesting the non-received biometric information is input; Transmitting the non-reception request message to the sensor transmitter every non-reception communication period. The steps include: the unreceived communication period is greater than the regular communication period, When a user command to refuse to receive unreceived vital signs is input, or when a user command is not input for a predetermined time from the time when the indicator is output, the indicator output by the communication terminal is deleted. Methods for transmitting and receiving biometric information.

2. A method for transmitting and receiving biometric information according to claim 1, The biometric message includes a biometric identifier. Methods for transmitting and receiving biometric information.

3. A method for transmitting and receiving biometric information according to claim 2, comprising: The non-received request message includes an identifier of non-received biometric information during the non-received communication period. Methods for transmitting and receiving biometric information.

4. A method for transmitting and receiving biometric information according to claim 1, The non-received communication period is shorter than a storage period between the time when the biological information is generated and the time when the biological information is deleted in the sensor transmitter. Methods for transmitting and receiving biometric information.

5. A method for transmitting and receiving biometric information according to claim 3, comprising: The non-receipt request message is A step performed by the communication terminal, determining whether the received biometric information identifier is consecutive to the last biometric information identifier last stored in the communication terminal based on the biometric information identifier every time the biometric information message is received from the sensor transmitter during the non-reception communication period; determining an identifier of unreceived biometric information between the received biometric information identifier and the last biometric information identifier if the received biometric information identifier is not consecutive to the last biometric information identifier; generating a non-received request message having an identifier of the non-received biometric information when the non-received communication period expires; Generated through Methods for transmitting and receiving biometric information.

6. A method for transmitting and receiving biometric information according to claim 3, The non-receipt request message is A step performed by the communication terminal, Sorting the biometric information received from the sensor transmitter during a non-reception communication period in order of the biometric information identifier; determining whether an identifier of unreceived biometric information exists based on the arranged biometric information identifiers; generating a non-received request message including an identifier of the non-received biometric information when the non-received communication period expires; Generated through Methods for transmitting and receiving biometric information.

7. A method for transmitting and receiving biometric information according to claim 3, A step performed by the communication terminal, determining whether the biological information message is received from the sensor transmitter during a first communication interval set for each regular communication period; receiving the biometric message during the first communication interval or terminating communication with the sensor transmitter when the first communication interval ends; Further comprising: If the biometric message is successfully received during the first communication interval or if the biometric message is unsuccessfully received during the first communication interval, communication with the sensor transmitter is terminated without a separate receipt confirmation message. Methods for transmitting and receiving biometric information.

8. A method for transmitting and receiving biometric information according to claim 3, A step performed by the communication terminal, determining whether an unreceived biometric information message including unreceived biometric information is received from the sensor transmitter during a second communication interval set for each unreceived communication period; transmitting, when the unreceived vital sign message is received during the second communication interval, a receipt confirmation message indicating completion of the receipt to the sensor transmitter; terminating communication with the sensor transmitter when the unreceived vital sign message is received during the second communication interval or when the second communication interval expires; Also includes Methods for transmitting and receiving biometric information.

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