Method for receiving and transmitting biological information in continuous blood glucose measurement system

Abstract

The present invention relates to a method for transmitting and receiving biological information between a sensor transmitter and a communication terminal in a continuous blood glucose measurement system. More specifically, the method relates to a method for transmitting and receiving biological information in which, instead of determining whether biological information has been successfully transmitted and received between the sensor transmitter and the communication terminal in each regular communication cycle, the method determines whether unreceived biological information exists only in a non-received communication cycle that is relatively longer than the regular communication cycle. When unreceived biological information exists, the non-received biological information is received. This method can thereby reduce the computational load required to determine whether unreceived biological information exists in each regular communication cycle and the energy waste required to receive unreceived biological information in each regular communication cycle.

Description

Technical Field

[0001] The present invention relates to a method for transmitting and receiving biological information between a sensor transmitter and a communication terminal in a continuous blood glucose measurement system. More specifically, the method relates to a method for transmitting and receiving biological information in which, instead of determining whether biological information has been successfully transmitted and received between the sensor transmitter and the communication terminal in each regular communication cycle, the method determines whether unreceived biological information exists only in a non-received communication cycle that is relatively longer than the regular communication cycle. When non-received biological information exists, the non-received biological information is received. This method can thereby reduce the computational load required to determine whether unreceived biological information exists in each regular communication cycle and the energy waste required to receive unreceived biological information in each regular communication cycle. Background Art

[0002] Diabetes is a common chronic disease among modern people. In South Korea, more than 2 million people, or 5% of the total population, suffer from diabetes.

[0003] Diabetes is caused by a variety of reasons such as obesity, stress, incorrect eating habits, congenital heredity, etc., which lead to an absolute or relative lack of insulin produced by the pancreas, which is unable to correct the balance of sugar in the blood and causes an absolute increase in the sugar content in the blood.

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

[0005] However, when glucose levels increase beyond what is necessary, they cannot be properly stored in the liver, muscles, or fat cells, and instead accumulate in the blood. Consequently, diabetic patients maintain blood sugar levels much higher than those of normal people. As excess blood sugar passes directly through tissues and is excreted in urine, the sugar that the body's tissues absolutely need becomes insufficient, leading to abnormalities in the body's tissues.

[0006] Diabetes is characterized by having few conscious symptoms in the early stages, but as the disease progresses, unique symptoms unique to diabetes appear, such as polydipsia, polyphagia, polyuria, weight loss, general fatigue, itchy skin, and persistent wounds on the hands and feet. As the disease progresses, complications such as visual impairment, hypertension, kidney disease, stroke, periodontal disease, muscle spasms, neuralgia, and gangrene may occur.

[0007] To diagnose such diabetes and manage it so that it does not develop complications, systematic blood sugar measurement and treatment should be carried out in parallel.

[0008] Diabetes requires continuous blood sugar measurement for management, leading to a growing demand for blood sugar measurement devices. Various studies have shown that when diabetic patients maintain strict blood sugar regulation, the incidence of diabetic complications is significantly reduced. Therefore, regular blood sugar measurement is crucial for diabetic patients to maintain blood sugar regulation.

[0009] Diabetics typically use finger prick blood glucose meters to manage their blood sugar levels. While these meters are helpful, they only display results at the time of measurement, making it difficult to accurately measure constantly fluctuating blood sugar levels. Furthermore, finger prick blood glucose meters require frequent blood draws throughout the day, placing a significant burden on diabetic patients.

[0010] Diabetics often experience alternating periods of high and low blood sugar, with emergencies occurring during hypoglycemia. Hypoglycemia, which occurs when sugar levels are insufficient for a sustained period, can lead to unconsciousness or, in the worst-case scenario, death. Therefore, immediate detection of hypoglycemia is crucial for diabetic patients. However, blood-drawing blood glucose meters, which measure blood sugar intermittently, have significant limitations.

[0011] To overcome the limitations of such blood sampling type blood glucose meters, a continuous glucose monitoring system (CGMS) has been developed that is inserted into the human body and measures blood glucose at intervals of several minutes. CGMS can be used to easily cope with the management of diabetic patients and emergency situations.

[0012] The continuous blood glucose monitoring system includes a sensor transmitter that is attached to a user's body to measure blood glucose by collecting body fluids, and a communication terminal that outputs the received blood glucose values. While the sensor transmitter is inserted into the body, it measures the user's blood glucose over a predetermined period, for example, approximately 15 days, and generates blood glucose information. The sensor transmitter periodically generates blood glucose information, and the communication terminal periodically receives and outputs the received blood glucose information in a format that the user can confirm.

[0013] In the continuous blood glucose measurement system described above, the sensor transmitter and the communication terminal transmit and receive blood glucose information via wired or wireless communication. The communication terminal needs to continuously receive and transmit data packets from the sensor transmitter without loss.

[0014] However, there may be a situation where the communication terminal cannot continuously receive blood sugar information from the sensor transmitter due to temporary communication disconnection between the sensor transmitter and the communication terminal or the user's inexperienced actions, and therefore the user cannot continuously monitor his or her own blood sugar information through the communication terminal.

[0015] In this case, unreceived blood glucose information should be obtained, and except for the unreceived blood glucose information judged by the user as unnecessary, only the blood glucose information judged by the user as necessary should be received before the blood glucose information stored in the sensor transmitter is deleted, and a method of receiving the unreceived blood glucose information without wasting limited energy is required. Summary of the Invention

[0016] Technical issues

[0017] The present invention aims to solve the problems existing in the previous methods of sending and receiving biometric information mentioned above. The purpose of the present invention is to provide the following method of sending and receiving biometric information, that is, to determine whether there is biometric information that the communication terminal has not received from the sensor transmitter, and when there is unreceived biometric information, receive the unreceived biometric information.

[0018] Another object of the present invention is to provide a method for sending and receiving biometric information, that is, instead of judging whether the biometric information is successfully sent and received between the sensor transmitter and the communication terminal in each regular communication cycle in which the biometric information is sent from the sensor transmitter to the communication terminal, it is judged whether there is unreceived biometric information only in the unreceived communication cycle, and the unreceived biometric information is received.

[0019] Still another object of the present invention is to provide a method for transmitting and receiving biometric information that can selectively receive the unreceived biometric information only upon a user's request, even if there is biometric information that has not been received by a communication terminal.

[0020] Technical Solution

[0021] In order to achieve the purpose of the present invention, the method for sending and receiving biometric information of the present invention is characterized in that it includes: a step in which a sensor transmitter generates a biometric information message having biometric information measured by a measuring sensor and sends the biometric information message to a communication terminal in each regular communication cycle; and a step in which the communication terminal generates a non-receipt request message requesting biometric information stored in the sensor transmitter that is not received by the communication terminal, and sends the non-receipt request message to the sensor transmitter in each non-receipt communication cycle, and the non-receipt communication cycle is greater than the regular communication cycle.

[0022] The biometric information message includes a biometric information identifier.

[0023] The non-reception request message includes an identifier of the biological information that was not received from the sensor transmitter during the non-reception communication period.

[0024] The non-receiving communication period is 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.

[0025] Preferably, the method for sending biometric information of the present invention is characterized in that it also includes: a step in which the communication terminal determines whether there is biometric information stored in the sensor transmitter that is not received by the communication terminal in each non-received communication cycle; when there is non-received biometric information, a step in which an indicator for notifying that there is non-received biometric information is output; and a step in which, in response to the indicator, a user command requesting non-received biometric information is input, and when a user command requesting non-received biometric information is input, a non-received request message is generated and sent to the sensor transmitter.

[0026] Preferably, in one embodiment of the present invention, the method for sending and receiving biometric information is characterized in that the non-received request message is generated by the following steps: a step of judging whether the received biometric information identifier is continuous with the last biometric information identifier last stored in the communication terminal based on the biometric information identifier whenever the communication terminal receives a biometric information message from the sensor transmitter during an unreceived communication period; a step of judging the unreceived biometric information identifier between the received biometric information identifier and the last biometric information identifier when the received biometric information identifier is discontinuous; and a step of generating a non-received request message with an unreceived biometric information identifier when the unreceived communication period expires.

[0027] Preferably, in another embodiment of the present invention, the method for sending and receiving biometric information is characterized in that the non-received request message is generated by the following steps: a step of arranging the biometric information received by the communication terminal from the sensor transmitter during the non-received communication period in the order of biometric information identifiers; a step of judging whether there is an unreceived biometric information identifier based on the arranged biometric information identifiers; and a step of generating a non-received request message with an unreceived biometric information identifier when the non-received communication period expires.

[0028] The method for sending and receiving biometric information of the present invention is characterized in that it also includes: a step of determining whether the communication terminal receives a biometric information message from the sensor transmitter during the set first communication interval in each regular communication cycle; and a step of ending the 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 expires, and ending the communication with the sensor transmitter 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 not successfully received during the first communication interval.

[0029] The method for sending and receiving biometric information of the present invention is characterized in that it also includes: a step of determining whether the communication terminal receives an unreceived biometric information message containing unreceived biometric information from the sensor transmitter during a set second communication interval in each unreceived communication cycle; and a step of ending communication with the sensor transmitter when the communication terminal receives an unreceived biometric information message during the second communication interval, or when the second communication interval expires, and sending a reception confirmation message to the sensor transmitter indicating whether the unreceived biometric information message is successfully received during the second communication interval.

[0030] Effects of the Invention

[0031] The biological information transmission and reception method of the present invention has the following effects.

[0032] First, in the method for transmitting and receiving biometric information of the present invention, whether the biometric information is successfully transmitted and received between the sensor transmitter and the communication terminal is not determined in each regular communication cycle in which the biometric information is transmitted from the sensor transmitter to the communication terminal. Instead, whether the biometric information is not received is determined only in a non-receiving communication cycle that is relatively larger than the regular communication cycle. This can reduce the processing load required to determine whether the biometric information is not received in each regular communication cycle and the energy waste required to receive the non-receiving biometric information in each regular communication cycle.

[0033] Second, in the method for sending and receiving biometric information of the present invention, a message is generated in a manner that includes biometric information and a biometric information identifier in the biometric information message sent and received between the sensor transmitter and the communication terminal in each regular communication cycle, so that the biometric information that was not received during the unreceived communication cycle can be judged based on the biometric information identifier to selectively receive only the unreceived biometric information.

[0034] Third, in the method for sending and receiving biometric information of the present invention, when there is biometric information that has not been received during an unreceived communication period, an indicator is output to the user, and the unreceived biometric information is received only when the user requests the unreceived biometric information based on the indicator, thereby being able to receive only the unreceived biometric information that the user determines to be necessary among the unreceived biometric information.

[0035] Fourth, in the method for sending and receiving biometric information of the present invention, when a user command requesting non-receipt of biometric information has not been input within a set time after the indicator is output, or when the user refuses to receive the non-received biometric information, the indicator is controlled to be deleted, thereby reducing the inconvenience caused to the user by unnecessary non-receipt of biometric information. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 FIG. 1 is a schematic diagram illustrating a continuous biological information measurement system according to an embodiment of the present invention.

[0037] Figure 2 This is a functional block diagram for explaining the sensor transmitter of the present invention.

[0038] Figure 3 This is a diagram for explaining an example of generating biological information in a sensor transmitter.

[0039] Figure 4 This is a diagram for explaining an example of generating a transmission packet in a sensor transmitter.

[0040] Figure 5 This is a functional block diagram for explaining the communication terminal of the present invention.

[0041] Figure 6 This is a diagram for explaining messages transmitted and received between a sensor transmitter and a communication terminal in the biological information transmission and reception method of the present invention.

[0042] Figure 7 FIG. 1 is a flowchart for explaining a method for transmitting and receiving biological information in each regular communication cycle according to the present invention.

[0043] Figure 8 1 is a flowchart for explaining a method of transmitting and receiving unreceived biological information in each unreceived communication period according to the present invention.

[0044] Figure 9 This is a diagram for explaining an example of a regular communication period and a non-reception communication period.

[0045] Figure 10 1 is a diagram for explaining a method of notifying a user of whether or not biometric information has not been received according to the present invention. DETAILED DESCRIPTION

[0046] It should be noted that the technical terms used in the present invention are only used to illustrate specific embodiments and are not intended to limit the present invention. In addition, unless otherwise defined in the present invention, the technical terms used in the present invention should be interpreted as the meaning commonly understood by those of ordinary skill in the art to which the present invention belongs, and should not be interpreted as overly comprehensive meanings or overly narrow meanings. In addition, when the technical terms used in the present invention are incorrect technical terms that cannot accurately express the ideas of the present invention, they should be replaced with technical terms that can be correctly understood by those skilled in the art.

[0047] In addition, unless the context clearly defines otherwise, singular expressions used in the present invention include plural expressions. In the present invention, terms such as "consisting of" or "comprising" should not be interpreted as necessarily including all of the multiple components or steps described in the present invention, but should be interpreted as not including some of the components or steps, or further including additional components or steps.

[0048] In addition, it should be noted that the drawings are only used to facilitate understanding of the concept of the present invention and should not be interpreted as limiting the concept of the present invention to the drawings.

[0049] The method for transmitting and receiving biological information of the present invention will be described in more detail below with reference to the accompanying drawings.

[0050] Figure 1 FIG. 1 is a schematic diagram illustrating a continuous biological information measurement system according to an embodiment of the present invention.

[0051] Reference Figure 1 A continuous biological information measurement system 1 according to an embodiment of the present invention includes a sensor transmitter 10 and a communication terminal 30 .

[0052] The sensor transmitter 10 is attached to the body. When the sensor transmitter 10 is attached to the body, one end of the sensor of the sensor transmitter 10 is inserted into the skin and periodically extracts body fluids to measure biological information.

[0053] The communication terminal 30 is a terminal capable of receiving biometric information from the sensor transmitter 10 and displaying the received biometric information to the user. It can be a mobile terminal such as a smartphone, tablet computer, or laptop computer capable of communicating with the sensor transmitter 10. Of course, the communication terminal 30 is not limited thereto and can be any type of terminal as long as it includes a communication function and can be installed with a program or application.

[0054] The sensor transmitter 10 transmits the periodically measured biological information to the communication terminal 30 based on the request of the communication terminal 30 or at each set time. In order to perform data communication between the sensor transmitter 10 and the communication terminal 30, the sensor transmitter 10 and the communication terminal 30 can be connected to each other by wired communication via a USB cable, etc., or by wireless communication such as infrared communication, NFC communication, Bluetooth, etc.

[0055] Here, the communication terminal 30 determines whether there is biometric information not received from the sensor transmitter 10, and when there is unreceived biometric information, provides an indicator for notifying the user of the unreceived biometric information, so as to receive the unreceived biometric information according to the user's selection.

[0056] According to the fields to which the present invention is applied, the sensor transmitter 10 can measure various biological information such as blood sugar information, and can transmit and receive the measured biological information between the sensor transmitter and a communication terminal.

[0057] Figure 2 This is a functional block diagram for explaining the sensor transmitter of the present invention.

[0058] refer to Figure 2More specifically, the sensor module 110 includes a sensor that is partially inserted into the body to measure biological information.

[0059] 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 received by the sensor control unit 130 from the sensor module 110 is an analog signal. The sensor control unit 130 can remove noise from the analog signal and then convert it into a digital signal to generate the biological information.

[0060] The transmission packet generator 170 generates a transmission packet including biometric information from the biometric information stored in the storage unit 150 . Each time a transmission packet is generated, the transmission packet generator 170 generates a transmission packet including a biometric information identifier for identifying the biometric information.

[0061] Sensor control unit 130 controls the communication terminal to transmit an advertisement message via sensor communication unit 190 during each regular communication cycle to establish communication with the communication terminal, and transmits the generated transmission data packet to the communication terminal. When the communication interval allocated to the regular communication cycle has elapsed, sensor control unit 130 terminates communication without receiving an acknowledgment message confirming successful reception of the transmission data packet from the communication terminal.

[0062] On the other hand, when the sensor control unit 130 connects and communicates with the communication terminal during each non-reception communication cycle to receive a non-reception request message from the communication terminal, it extracts non-received biometric information corresponding to the non-received biometric information identifier from the storage unit 150 based on the non-received biometric information identifier included in the non-received request message, and generates a non-received biometric information message composed of the extracted non-received biometric information. During the communication interval allocated to the non-received communication cycle, the sensor control unit 130 transmits the non-received biometric information message to the communication terminal. Based on the confirmation message received from the communication terminal during the communication interval, the sensor control unit 130 determines whether the non-received biometric information message has been successfully transmitted.

[0063] The sensor control unit 130 stores the biometric information in the storage unit 150 during the storage period from the time the biometric information is generated, and deletes the stored biometric information in sequence when the storage period expires. Before the biometric information is deleted, the unreceived biometric information is sent to the communication terminal in each unreceived communication period so that the generated biometric information is securely sent to the communication terminal.

[0064] Preferably, through the confirmation message, when the unreceived biometric information is not successfully sent to the communication terminal, the sensor control unit 130 can delete the biometric information stored in the storage unit 150 except the unreceived biometric information, and when the next unreceived communication cycle arrives, the unreceived biometric information that was previously not sent can be sent to the communication terminal.

[0065] Figure 3 This is a diagram for explaining an example of generating biological information in a sensor transmitter.

[0066] First, the biosignal data measured by the sensor transmitter is measured at predetermined intervals. Once measurement begins, multiple measurements can be performed. For example, the sensor transmitter measures biosignal data every 10 seconds. In this case, after 30 biosignal measurements per measurement, the time required for biosignal measurement can be 1 second. Therefore, the sensor transmitter measures analog biosignal data 30 times every 10 seconds.

[0067] That is, for example, blood sugar information may be measured at intervals of 10 seconds, such as measuring biological information 30 times between 2:14:25 and 26 pm, and measuring biological information another 30 times between 2:14:35 and 36 pm.

[0068] The biosignal data thus measured is converted into digital signals. The sensor transmitter calculates the average value of the 30 biometric data points converted into digital signals using a trimmed average method, calculating an average value every 10 seconds. At this point, the 7 high-order and 7 low-order data points of the 30 biometric data points are removed, and the average value A of the remaining 16 data points is calculated.

[0069] The cutting average value A calculated in this way can be generated in 10-second units. As shown in the figure, six cutting average values ​​A1 to A6 can be generated in one minute.

[0070] Furthermore, six cutting averages A1 to A6 are generated per minute, and a secondary cutting average B1 is generated using these six cutting averages. This secondary cutting average B1 is calculated by averaging the remaining four values, removing the maximum and minimum values ​​from the six cutting averages A1 to A6. Thus, biometric information is generated from one secondary cutting average B every minute.

[0071] The biological information data generated every minute is stored in the sensor transmitter, and the stored biological information can be generated as a transmission data packet in each regular communication cycle and transmitted to the communication terminal.

[0072] Figure 4 This is a diagram for explaining an example of generating a transmission data packet in a sensor transmitter. Figure 4(a) describes an example of generating and sending a data packet. In each set biological information generation cycle T P Biometric information B1, B2, B3, B4, B5, B6, ... is sequentially generated. Each time biometric information is generated, a transmission data packet P1, P2, P3, P4, P5, P6 containing the corresponding biometric information is generated. When generating the transmission data packet, a unique series of identifiers is assigned according to the order in which the transmission data packets are generated, and the transmission data packet is generated in such a manner as to include the biometric information identifier and the biometric information. Preferably, a sequence that increases in order according to the order in which the transmission data packets are generated can be assigned as the biometric information identifier, or the time at which the transmission data packet is generated can be assigned as the biometric information identifier.

[0073] The generated transmission data packets P1, P2, P3, P4, P5, and P6 are stored in the storage unit. S When the transmission packets P1, P2, P3, P4, and P5 stored in the storage unit arrive, they are respectively transmitted to the communication terminal.

[0074] refer to Figure 4 (b) describes another example of generating and sending data packets, in each set biological information generation cycle T P The biometric information B1, B2, B3, B4, B5, B6, ... is generated in sequence, and each time the biometric information is generated, it is stored in the storage unit. When the regular communication cycle T is set, S When it arrives, a transmission packet P1 including all the biometric information B1, B2, B3, B4, and B5 stored in the storage unit up to the regular communication period is generated, and the generated transmission packet P1 is transmitted to the communication terminal.

[0075] Figure 5 This is a functional block diagram for explaining the communication terminal of the present invention.

[0076] refer to Figure 5 To describe more specifically, when the terminal communication unit 230 receives an advertisement message from a sensor transmitter during each set regular communication period, the terminal control unit 210 connects and communicates with the sensor transmitter via the terminal communication unit 230. While connected and communicating with the sensor transmitter, the terminal control unit 210 receives biometric information from the sensor transmitter via the terminal communication unit 230 and stores the received biometric information in the storage unit 250. When communication with a sensor transmitter ends after the communication interval has passed, or when transmission data packets from the sensor transmitter have been received, even before the communication interval has passed, the terminal control unit 210 terminates communication with the sensor transmitter.

[0077] Meanwhile, the biometric information management unit 240 determines whether any biometric information has been received during each set non-receiving communication period based on the biometric information identifier stored in the storage unit 250. If any biometric information has been received, the terminal control unit 210 generates a non-receiving request message including the non-receiving biometric information identifier and transmits it to the sensor transmitter via the terminal communication unit 230.

[0078] Here, the biometric information management unit 240 arranges the biometric information stored in the storage unit 250 in the order of identifiers during the non-received communication period, and determines discontinuous biometric information identifiers based on the biometric information identifiers, and determines the biometric information of the discontinuous biometric information identifiers as non-received biometric information.

[0079] Preferably, when unreceived biometric information exists, the terminal control unit 210 generates an indicator indicating whether or not unreceived biometric information exists, the amount of unreceived biometric information, and displays the generated indicator information on the display unit 270 to inform the user of the unreceived biometric information. When a user command to receive unreceived biometric information is input from the user interface 290, a non-receipt request message including an unreceived biometric information identifier is generated in accordance with the user command and transmitted to the sensor transmitter via the terminal communication unit 230.

[0080] The terminal control section 210 controls to store the received non-received biometric information in the storage section 250 when receiving non-received biometric information from the sensor transmitter in response to the non-received request message in each non-received communication cycle.

[0081] Preferably, when a user command to reject reception of non-received biometric information is input in response to the displayed indicator, the terminal control section 210 deletes the displayed indicator and does not generate a separate non-receipt request message.

[0082] Preferably, when no user command is input within a set time from displaying the indicator, the terminal control unit 210 may delete the displayed indicator and not generate a separate non-reception request message.

[0083] Preferably, when no user command is input within a set time from the time point when the indicator is displayed, the terminal control unit 210 outputs a message to the display unit for notifying that there is non-received biometric information, and when a user command to refuse to receive the non-received biometric information is input in response to the message, or when no user command is input again within a set time from the time point when the message is output to the display unit, the displayed indicator can be deleted and a separate non-receipt request message is not generated.

[0084] Figure 6This is a diagram for explaining messages transmitted and received between a sensor transmitter and a communication terminal in the biological information transmission and reception method of the present invention.

[0085] refer to Figure 6 To describe more specifically, the sensor transmitter transmits an advertisement message to surrounding communication terminals in each regular communication cycle ( S1 ).

[0086] In response to the advertisement message, the communication terminal sends an information request message to the sensor transmitter to establish communication between the communication terminal and the sensor transmitter (S2). Preferably, the sensor transmitter may include a unique sensor transmitter identifier in the advertisement message and send it to the communication terminal. The communication terminal may authenticate the sensor transmitter based on the sensor transmitter identifier to establish communication with the corresponding sensor transmitter.

[0087] When communication is established between the sensor transmitter and the communication terminal, the sensor transmitter transmits a transmission data packet containing biometric information generated by the sensor transmitter to the communication terminal during a set communication interval (S3). Preferably, the transmission data packet includes a biometric information identifier for identifying the biometric information. The communication connection is terminated when the set communication interval has expired, or when a transmission data packet is received from the communication terminal, the communication connection is terminated even before the communication interval has expired.

[0088] The sensor transmitter and the communication terminal transmit and receive transmission packets containing the biological information generated by the sensor transmitter by repeating the aforementioned steps S1, S2, and S3 in each regular communication cycle.

[0089] On the other hand, when the non-receiving communication period arrives, the communication terminal determines the biometric information not received from the sensor transmitter during the non-receiving communication period, and sends a non-receiving request message having a non-receiving biometric information identifier for identifying the non-receiving biometric information to the sensor transmitter (S6).

[0090] In response to the non-received request message, the sensor transmitter and the communication terminal connect for communication during the set communication interval. The communication terminal that receives the non-received request message determines the biometric information corresponding to the non-received biometric information identifier in the non-received request message, and sends a transmission data packet containing the determined non-received biometric information to the communication terminal during the communication interval (S7).

[0091] The communication terminal determines whether the biometric information corresponding to the unreceived biometric information identifier is received from the sensor transmitter during the communication interval, and sends a confirmation message to the sensor transmitter. When the biometric information corresponding to the unreceived biometric information identifier is successfully received, the communication terminal generates a reception success message and sends it to the sensor transmitter, and when the biometric information corresponding to the unreceived biometric information identifier is unsuccessfully received, the communication terminal generates a reception failure message and sends it to the sensor transmitter.

[0092] Preferably, although the reception of unreceived biometric information can be started by the communication terminal determining whether an unreceived communication cycle has arrived and the communication terminal sending an unreceived request message to the sensor transmitter, the reception of unreceived biometric information can be started by the sensor transmitter determining whether an unreceived communication cycle has arrived and the sensor transmitter sending an advertising message for sending and receiving unreceived biometric information to the communication terminal.

[0093] Figure 7 FIG. 1 is a flowchart for explaining a method for transmitting and receiving biological information in each regular communication cycle according to the present invention.

[0094] refer to Figure 7 To describe it more specifically, it is determined whether a regular communication period has arrived (S110).

[0095] When the regular communication period arrives, the communication terminal determines whether an advertisement message is received from the sensor transmitter (S130).

[0096] When receiving the advertisement message, the communication terminal transmits a reception request message to the sensor transmitter to connect communication with the sensor transmitter (S150).

[0097] When communication is established between the sensor transmitter and the communication terminal, the sensor transmitter sends a transmission data packet containing biometric information to the communication terminal during the communication interval allocated to the regular communication cycle, and the communication terminal determines whether the transmission data packet is received from the sensor transmitter during the communication interval (S160).

[0098] When receiving the transmission data packet during the communication interval, the communication terminal ends the communication connected to the sensor transmitter (S190). Preferably, when receiving the transmission data packet, the communication terminal can end the communication connected to the sensor transmitter even before the allocated communication interval expires.

[0099] On the other hand, after determining whether the communication interval has expired, if it is before the communication interval expires, it is determined whether the transmission data packet continues to be received during the communication interval (S170). Even if the transmission data packet cannot be received from the sensor transmitter before the communication interval expires, the communication between the sensor transmitter and the communication terminal is terminated (S190).

[0100] Figure 8 1 is a flowchart for explaining a method of transmitting and receiving unreceived biological information in each unreceived communication period according to the present invention.

[0101] refer to Figure 8 To describe it more specifically, it is determined whether a period of no communication reception has arrived (S210).

[0102] When a period of unreceived communication occurs, the communication terminal generates a non-received request message and transmits it to the sensor transmitter (S220). When a period of unreceived communication occurs, it determines whether any biometric information was not received during the period of unreceived communication; and if any biometric information was not received, it determines whether any biometric information identifier was not received (S220). Each time biometric information is generated, the sensor transmitter assigns a sequentially increasing biometric information identifier. Preferably, the communication terminal determines whether any biometric information was not received and whether any biometric information identifier was not received based on the continuity of the biometric information identifiers received during the period of unreceived communication. In other words, based on the continuity of the biometric information identifiers received during the period of unreceived communication, if any biometric information identifier is missing, it can be determined that any biometric information was not received.

[0103] When there is unreceived biometric information, a non-received request message having a non-received biometric information identifier is generated, and the generated non-received request message is transmitted to the communication terminal (S230).

[0104] During the communication interval allocated to the non-reception communication period, the communication between the sensor transmitter and the communication terminal is connected, and during the communication interval, it is determined whether non-reception biometric information is received from the sensor transmitter in response to the non-reception request message (S240).

[0105] When all unreceived biometric information corresponding to the unreceived biometric information identifier has been received, a successful reception message is generated and sent to the sensor transmitter (S250), and communication between the sensor transmitter and the communication terminal is terminated (S290). Preferably, when all unreceived biometric information has been received, the communication terminal may terminate the communication connection with the sensor transmitter even before the allocated communication interval expires.

[0106] On the other hand, after determining whether the communication interval has expired, if it has not expired, it is determined whether unreceived biometric information has continued to be received during the communication interval (S270). If all unreceived biometric information has not been received from the sensor transmitter by the end of the communication interval, a reception failure message is generated and sent to the sensor transmitter (S280). After the failure message is sent, communication between the sensor transmitter and the communication terminal is terminated (S290).

[0107] Figure 9 This is a diagram for explaining an example of a regular communication period and a non-reception communication period.

[0108] refer to Figure 9 To be more specific, in each regular communication cycle T S The biometric information generated by the sensor transmitter is transmitted to the communication terminal. The communication terminal does not send a confirmation message to the sensor transmitter regarding whether the biometric information transmitted during each regular communication cycle has been successfully received. Similarly, the sensor transmitter terminates communication with the communication terminal when the communication interval allocated to the regular communication cycle expires, regardless of whether the biometric information has been successfully transmitted.

[0109] On the other hand, in each non-receiving communication period T H The communication terminal requests and receives the biometric information that was not received during the unreceived communication period from the sensor transmitter, generates a confirmation message on whether the unreceived biometric information is successfully received and sends it to the sensor transmitter, and the sensor transmitter determines whether the unreceived biometric information is successfully received based on the confirmation message.

[0110] Here, the communication period T is not received H is set to be greater than the normal communication cycle T S , wherein, in each regular communication cycle, the sensor transmitter or the communication terminal does not separately confirm whether the biometric information is successfully received or not, or, instead of sending and receiving a confirmation message for confirming whether the biometric information is successfully received or not in each regular communication cycle, it is only judged whether there is unreceived biometric information in the unreceived communication cycle to request and receive the unreceived biometric information, and a confirmation message is sent and received as to whether the unreceived biometric information is successfully received, thereby reducing the computational load and energy waste required to judge whether the biometric information is successfully received in each regular communication cycle.

[0111] Here, the communication period T is not received H is set to be longer than the storage period T for storing biological information in the sensor transmitter. M , it is possible to request the unreceived biometric information before the biometric information generated by the sensor transmitter is deleted in the sensor transmitter to securely receive the unreceived biometric information.

[0112] Figure 10 1 is a diagram for explaining a method of notifying a user of whether or not biometric information has not been received according to the present invention.

[0113] like Figure 10 As shown, when a non-received communication period arrives, it is determined whether or not there is non-received biological information during the non-received communication period (S221).

[0114] When there is unreceived biometric information, an indicator notifying the user of the unreceived biometric information is output to the display unit (S223). The indicator may include information such as whether there is unreceived biometric information, the amount of unreceived biometric information, and whether the unreceived biometric information originates from a dangerous area or a normal area. The area to which the unreceived biometric information belongs is characterized by being predicted based on an area to which biometric information received adjacent to the unreceived biometric information belongs.

[0115] The user interface unit determines whether a user command regarding confirmation of non-reception of biometric information is input ( S225 ), and determines whether a set time has passed without input of a user command ( S226 ).

[0116] If a user command is not input after a set time, the displayed indicator is deleted to avoid inconvenience to the user caused by the continued display of the indicator (S227). Preferably, if a user command is not input after a set time, a message informing that the biometric information has not been received can be displayed on the display unit again, and even after the message is displayed, the indicator can be deleted after a specified time has passed.

[0117] On the other hand, when a user command is input, it is determined whether the input user command is a user command for refusing to confirm that the biometric information has not been received (S228). If the input user command is a refusal confirmation command, the displayed indicator is deleted to avoid inconvenience to the user caused by the continued display of the indicator (S227). However, if the input user command is a confirmation command, a non-receipt request message is generated and sent to the sensor transmitter (S229).

[0118] In this way, an indicator for notifying the existence of non-received biometric information is displayed to inform the user that the biometric information has not been received, but when a user command for confirming the non-receipt of biometric information is not input during a set time, or the user confirms that confirmation of the non-receipt of biometric information is not necessary, the indicator is deleted, and the non-receipt of biometric information is selectively requested only when the user requests the non-receipt of biometric information, thereby reducing the computational load and energy waste required for sending and receiving unnecessary non-receipt of biometric information.

[0119] On the other hand, the embodiments of the present invention described above can be written as programs executable on computers and can be implemented in general-purpose digital computers that execute the programs using a computer-readable recording medium.

[0120] The computer-readable recording media include magnetic storage media (eg, ROM, floppy disks, hard disks, etc.), optical reading media (eg, CD-ROMs, DVDs, etc.), and storage media of carrier waves (eg, transmission via the Internet).

[0121] Although the present invention has been described with reference to the embodiments shown in the drawings, this is merely exemplary, and those skilled in the art will appreciate that various modifications and equivalent embodiments are possible. Therefore, the true technical protection scope of the present invention should be defined by the technical concepts of the appended claims.

Claims

1. A method for transmitting and receiving biological information between a sensor transmitter disposed on a portion of a user's body to measure the user's biological information and a communication terminal that receives the biological information from the sensor transmitter, the method comprising: The sensor transmitter generates a biological information message including biological information measured by a measuring sensor and transmits the biological information message to the communication terminal in each regular communication cycle; generating, by the communication terminal, a non-reception request message for requesting biological information not received by the communication terminal among the biological information stored in the sensor transmitter, and transmitting the non-reception request message to the sensor transmitter in each non-reception communication cycle, wherein the non-reception communication cycle is greater than the regular communication cycle; a step of determining by the communication terminal in each non-receiving communication period whether there is any biological information stored in the sensor transmitter that has not been received by the communication terminal; When the unreceived biometric information exists, outputting an indicator for notifying that the unreceived biometric information exists; as well as a step of determining whether a user command requesting the unreceived biometric information is input in response to the indicator, wherein when the user command requesting the unreceived biometric information is input, generating the unreceived request message and transmitting it to the sensor transmitter, When a user command to reject reception of the unreceived biometric information is input, or when no user command is input within a set time from when the indicator is displayed, the communication terminal deletes the displayed indicator.

2. The method for transmitting and receiving biological information according to claim 1, wherein: The biometric information message includes a biometric information identifier.

3. The method for transmitting and receiving biological information according to claim 2, wherein: The non-reception request message includes an identifier of the biological information that was not received from the sensor transmitter during the non-reception communication period.

4. The method for transmitting and receiving biological information according to claim 3, wherein: The non-received communication period is shorter than a storage period between a time point at which the biometric information is generated by the sensor transmitter and a time point at which it is deleted.

5. The method for transmitting and receiving biological information according to claim 3, wherein: The unreceived request message is generated by the following steps: a step of determining, based on the biometric information identifier, whether the received biometric information identifier is continuous with the last biometric information identifier stored in the communication terminal each time the communication terminal receives a biometric information message from the sensor transmitter during a non-receiving communication period; When the received biometric information identifier is not continuous with the last biometric information identifier, determining unreceived biometric information identifiers between the received biometric information identifier and the last biometric information identifier; as well as When the non-received communication period expires, a non-received request message including a non-received biometric information identifier is generated.

6. The method for transmitting and receiving biological information according to claim 3, wherein: The unreceived request message is generated by the following steps: a step of arranging the biological information received by the communication terminal from the sensor transmitter during a non-receiving communication period in the order of biological information identifiers; a step of determining whether there is an unreceived biometric information identifier based on the arranged biometric information identifiers; as well as When the non-received communication period expires, a non-received request message including the non-received biometric information identifier is generated.

7. The method for transmitting and receiving biological information according to claim 3, wherein: The method for sending and receiving biometric information further includes: a step of determining whether the communication terminal receives the biological information message from the sensor transmitter during the set first communication interval in each regular communication cycle; and When the communication terminal receives the biological information message during the first communication interval, or when the first communication interval expires, the step of terminating the communication with the sensor transmitter, and When the biological information message is successfully received during the first communication interval, or when the biological information message is not successfully received during the first communication interval, communication with the sensor transmitter is ended without a separate reception confirmation message.

8. The method for transmitting and receiving biological information according to claim 3, wherein: The method for sending and receiving biometric information further includes: a step of determining whether the communication terminal receives a non-received biological information message including non-received biological information from the sensor transmitter during a set second communication interval in each non-received communication cycle; and When the communication terminal receives the non-received biological information message during the second communication interval, or the second communication interval expires, the step of terminating the communication with the sensor transmitter, and A reception confirmation message indicating whether the unreceived biological information message is successfully received during the second communication interval is transmitted to the sensor transmitter.

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