THE PATIENT'S STATE COGNITION SYSTEM AND METHOD FOR

PREVENTING UNREASONABLE DEMAND OF THE INSURANCE

Technical Field The present invention relates to a patient's state cognition system and method for preventing an unreasonable demand of the insurance employing a Radio Frequency IDentification (hereinafter, referred to as "RFID") technology, and more particularly, to a patient's state cognition system and method, in which a RFID tag is attached to a patient's clothing in order to track the patient's position information, analyze the patient's behavior pattern, and determine whether the patient's abnormality behavior exists so that fair insurance can be calculated.

Background Art

In general, when medical institutes are employed and insurance bills, such as industrial accident compensation insurance and medical insurance, are requested, a hospitalization certificate, a medical treatment certificate such as an operation, a medical certificate, and so on are necessary. In such a case, in order to calculate an insurance bill, a hospitalization period, medical treatment history records, etc. must be clear.

However, in reality, in order to demand a large amount of an insurance bill, there are cases where an insured person writes false hospitalization records, but enjoys a normal life, where an insured person writes false medical treatment records without receiving medical treatment and demands an insurance bill, and so on.

In this case, a public insurance corporation cannot always check whether a patient is in a ward. It is also almost impossible to check whether medical treatment has

actually been performed. Thus, it inevitably depends on a patient or doctor's conscience.

In order to confirm this fact, it is necessary to check whether a patient is in a ward and whether a patent actually receives a doctor's medical treatment. Meanwhile, there exists a non-contact type cognition system in which a small chip is attached to various things in order to transmit and process information about the things and its surrounding environment information using a radio frequency. This technology is called the RFID technology.

This technology employs a reader having reading and description functions, a RPID tag having unique information built therein, an ultra-small antenna that transmits a radio frequency to the RFID tag, operating software, a network, and the like, and is used to identify a thin tag attached to an article and process information about the article.

The antenna functions to transmit a signal for reading data input to the tag, and enables communications between a computer and the tag by activating the tag through a generated electromagnetic field. The antenna is usually combined with a transceiver, a decoder and/or the like for the purpose of the role of the reader.

The tag may be various from a very small type that can be inserted into the skin to a large type that can be used for a truck, etc. The tag may have a variety of memory capacities depending on requirements and may have various shapes. The reader functions to manage communications between an antenna, a computer, and a server. The reader decrypts data encrypted in a chip of the tag and sends the data to a computer for execution.

Disclosure of Invention Technical Problem

Accordingly, the present invention has been made in view of the above problems occurring in the prior art, and it is an object of the present invention to provide a system and method, in which whether a patient is in a ward, hospitalized or has actually received a doctor's medical treatment can be checked by employing the RFID technology, and when a patient's abnormal behavior patterns different from the patient's normal behavior patterns are generated, this information is provided to a public insurance corporation, etc., thus preventing an unreasonable demand of the insurance. Another object of the present invention is to provide a system and method, in which it can sense a patient's abnormal behavior patterns using a sensor installed in the patient's bed and configured to sense the patient' state other than the RFID technology and inform a public insurance corporation of the occurrence of the abnormal behavior patterns or medical staff of the occurrence of the abnormal behavior patterns in emergency so that an expediency can be taken immediately.

Technical Solution

To achieve the above objects, a patient's state cognition system for preventing an unreasonable demand of the insurance according to the present invention includes an antenna 10 installed at specific places of a hospital and configured to generate a specific radio frequency signal and thus drive a RFID tag 11 so that each patient's place and behavior pattern can be cognized; the RFID tag 11 attached to a patient's clothing and configured to generate a specific frequency signal unique to the patient in response to the radio frequency signal of the antenna; a reader 12 installed together with the antenna and

configured to sense each patient's information signal transmitted from the RFID tag 11 and transmit the sensed information to a management server 13; the management server 13 for receiving the patient's information signal from the reader 12, and comparing the patient's information signal with the patient's behavior pattern in order to determine whether the patient's information signal is identical to the patient's behavior pattern; a database server 14 for storing the patient's behavior pattern information; and a web server 15 for transmitting the information determined in the management server 13 to a public insurance corporation server 100 over the web.

Advantageous Effects

The patient's state cognition system and method for preventing an unreasonable demand of the insurance as constructed above can have the following advantages.

First, a patient's behavior pattern can be analyzed clearly, and when calculating the insurance, whether a patient has been in a ward and a period in which the patient has been hospitalized, whether the patient has received medical treatment, the type of medical treatment, and so on can be taken into consideration accurately. Thus, an unreasonable demand of the insurance based on a false fact that a patient was hospitalized can be prevented.

Further, when an abnormal behavior pattern occurs, a hospital is immediately informed of this fact and therefore takes appropriate measures. In addition, a public insurance corporation can select a hospital in which abnormal behavior patterns are frequently generated on a time basis, where a lot of the abnormal behavior patterns are generated.

Second, a patient's information can be selectively sent to a public insurance corporation, etc. Accordingly, the privacy of a patient can be protected.

Third, a change in the body of the patient can be sensed rapidly and can be known to a medical staff in case of emergency. Accordingly, the life of a patient can be protected and a patient can be managed efficiently.

Brief Description of the Drawings

Further objects and advantages of the invention can be more fully understood from the following detailed description taken in conjunction with the accompanying drawings in which:

FIG. 1 shows a construction according to an embodiment 1 of a system of the present invention;

FIG. 2 is a conceptual view of the system of the present invention connected to a public insurance corporation server 100; FIG. 3 shows a construction according to an embodiment 2 of the system of the present invention;

FIG. 4 shows a construction according to an embodiment 3 of the system of the present invention;

FIG. 5 is a flowchart according to an embodiment 1 of a system of the present invention; and

FIG. 6 is a flowchart according to embodiments 2 and 3 of a method of the present invention. <Description of reference numerals of principal elements in the drawings>

10: Antenna 11 : RFID tag

12: Reader 13: Management server

14: Database server 15: Web server

16: Sensor 17: Near-field antenna

18: Near-field RPID tag for medical staff 19: Near-field reader for medical staff

20: Button for visit purpose 100: Public insurance corporation server

Best Mode for Carrying Out the Invention The present invention will now be described in detail in connection with specific embodiments with reference to the accompanying drawings.

<Embodiment 1 of a system>

FIG. 1 shows an embodiment of a patient's state cognition system for preventing an unreasonable demand of the insurance employing the RFID technology according to the present invention.

Referring to FIG. 1, the patient's state cognition system according to the embodiment 1 of the present invention includes an antenna 10, which is installed at specific places of a hospital and generates a specific radio frequency signal to thus drive a RFID tag 11 so that respective patients' places and behavior patterns can be cognized, the RFID tag 11 attached to a patient's clothing and configured to generate a specific frequency signal unique to the patient in response to the radio frequency signal of the antenna, a reader 12, which is installed together with the antenna and senses each patient's information signal transmitted from the RFID tag 11 and transmits the sensed information to a management server 13, the management server 13 for receiving the

patient's information signal from the reader 12, and comparing the patient's information signal with the patient's behavior pattern in order to determine whether the patient's information signal is identical to the patient's behavior pattern; a database server 14 for storing the patient's behavior pattern information, and a web server 15 for transmitting the information determined in the management server 13 to a public insurance corporation server 100 over the web.

The antenna 10 and the RFID tag 11, and the RFID tag 11 and the reader 12 are connected to each other wirelessly using a radio frequency. The reader 12 and the management server 13, and the database server 14, the web server 15 and the public insurance corporation server 100 are connected to each other through a communication network.

The antenna 10 is installed at specific facilities or places of a hospital so that each patient's place and behavior pattern can be cognized, and generates a specific radio frequency (for example, 900Mhz in the present invention) and thus drives the RFID tag 11. More specifically, the antenna 10 is generally mounted together with the reader 12 and may be installed several places, such as a bed, a ward gate, a rest room, a lounge and a promenade of a hospital.

The antenna 10 consistently generates a radio wave of a specific frequency around the system. The generated radio wave has a high frequency band of 900Mhz and a valid range of a remote place.

The RFID tag 11 may be attached to a jacket or pants of a patient's hospital clothing as shown in FIG. 1. The RFID tag 11 is small enough not to give any inconvenience when wearing the hospital clothing.

The RFID tag 11 may be generally attached to a place that cannot be recognized

by a patient, such as an end, a button, a pocket or a sleeve in a jacket of a hospital clothing, or such as a waist portion, an end or a pocket portion in the pants of a hospital clothing.

The hospital clothing has a tag into which each unique ID is recorded attached thereto. After a patient is supplied with the hospital clothing, each patient's unique information is stored along with the tag's unique information so that patients can be discriminated.

This RFID tag 11 is a device having each patient's unique information for discriminating each patient. The RFID tag is in an idle state at normal times, but is operated when a radio wave of the antenna 10 is sensed. That is, when a radio wave is sensed, the tag transmits a patient's unique information to the reader 12 although the patient does not recognize the tag.

The reader 12 senses the signal of a specific frequency, which is transmitted from the RFID tag 11, and transmits information in which the reader 12's ID and the tag's ID are integrated to the management server 13 over a wired/wireless communication network.

The reader 12 is generally mounted together with the antenna 10. Thus, in the present invention, the reader 12 may be installed at a bed, a ward gate, a rest room, a lounge, a promenade, etc. of a hospital in the same manner as the installation positions of the antenna.

In a more preferred aspect of the present invention, a reader installed at a bed can be set to cognize only an ID signal of a specific one person who uses the bed. A reader installed at a ward gate can be set to cognize all ID signals of plural patients who use a corresponding ward. Readers installed at a rest room, a lounge and a promenade

can be set to cognize the entire ID signals of all hospital patients.

This is because the reader installed at a bed has to check only the access of a corresponding user to the bed because the reader is provided to each patient, the reader installed at a ward gate has to check only whether a corresponding patient who uses a corresponding ward goes in and out, and the readers installed at the rest room and the lounge has to check the entry of the entire hospital patients.

The management server 13 is connected to the reader 12 over a wired/wireless communication network, and it receives a reader's position information and a patient's unique information, which are transmitted from the reader 12, and executes a program for processing (comparing and determining) the information.

The database server 14 is connected to the management server 13 over a communication network, and generally stores pattern information about patients' normal or abnormal behavior patterns.

In the case of a normal behavior pattern, for example, a signal from a person who is hospitalized in an intensive care unit and cannot move must be sensed only in a ward's bed. Further, in the case of a patient who is hospitalized in a general ward, signals must be sensed from several places of the hospital except for special cases in which the patient's behavior is impossible.

In the case of the abnormal behavior pattern, there may be a case where a signal, indicating that a patient who does not go to even the rest room and stay in the bed for a long time though the patient can move, can be sensed, a case where any signal is not sensed from any places or facilities of the hospital, and a case where a signal, indicating that a patient is fixed to the lounge or the promenade, is sensed.

The above basic behavior patterns have to be previously input and stored in the

database server 14 according to a patient's state when the patient checks in a hospital. However, in the event that the basic behavior patterns are not previously input and stored in the database server 14, expected behavior patterns in the case of a general patient are input as basic default values. The web server 15 is connected to the management server 13 over a communication network, and transmits information about the occurrence of patients' abnormal behavior patterns on the network to the public insurance corporation 100 through the Internet. The information transmitted from the web server 15 to the public insurance corporation server 100 basically includes only information about abnormal behavior patterns through determining in the management server 13 in order to minimize patients' privacy.

The public insurance corporation server 100 is connected to the management servers 13 of a plurality of hospitals and a communication network through the web servers 15 of the hospitals as shown in FIG. 2. Thus, the public insurance corporation server 100 integrally processes patients' abnormal behavior patterns received from a plurality of hospital.

<Embodiment 2 of a system>

FIG. 3 shows another embodiment of a patient's state cognition system for preventing an unreasonable demand of the insurance employing the RFID technology according to the present invention.

Referring to FIG. 3, the patient's state cognition system according to another embodiment of the present invention further includes a sensor 16, which is installed at a patient's bed and configured to generate an information signal of the patient's behavior pattern, along with the constituent elements according to the embodiment 1 of the

patient's state cognition system employing the RFID technology shown in FIG. 1.

The reader 12 reads a patient's behavior pattern information signal generated from the sensor 16 and transmits the read information signal to the management server 13. The sensor 16 is adapted to sense various states of a patient and may include various kinds of known sensors. Available sensors may include a thermal sensor for sensing a variation in a patient's temperature, a vibration sensor for sensing a patient's motion, a weight sensor using a load cell for sensing a patient's body weight, and so on. In the present invention, each of the sensors or a combination of them may be used. However, the most preferred sensor is the weight sensor using the load cell. In general, a body heat is likely to change, but a basic body weight is not changed abruptly for a short time. Further, a patient who is seriously ill rarely moves and general patients may not move while sleeping. Thus, to use the load cell has the highest reliability.

In the event that the load cell is used, the management server 12 for managing the measurement value of the load cell stores a patient's basic body weight when the patient is hospitalized, or when the patient's basic body weight is not input, the management server 12 stores an initial measurement value or a default value (for example, 60Kg) in the database server 14 as an initial value.

Further, an error tolerance is previously set in an operating program of the management server because a patient's body weight measured using the load cell can be changed. Thus, when a patient's body weight is changed abruptly (for example, when the patient goes out with his clothing or baggage being left on the bed), it can be considered as an abnormal behavior pattern.

The sensor 16 can be connected to the reader 12 over a wired/wireless

communication network. Various information signals of a patient's behavior patterns, which are sensed by the sensor, are sent to the reader, which then sends the information signals to the management server. In this case, the reader 12 can be designed to receive a RFID tag's information, the sensor's information or only the signal of the sensor. In the embodiment 2, the information stored in the database server 14 can include normal behavior patterns, which are classified through a combination of information sensed by the sensor 16 and information obtained by a patient's RFID tag, and information about abnormal behavior patterns.

In the case of the normal behavior patterns, for example, signals of the RFID tags have to be sensed at several places of a hospital since a patient moves irregularly, and signals of the sensor using the load cell can be considered as normal behavior patterns when a body weight that does not greatly exceed the basic value of a patient is sensed when the patient is in the bed.

However, in the case of the abnormal behavior patterns, when a signal of a tag attached to a patient is consistently sensed only at one place or the signal of the tag is sensed at the patient's bed, but the patient's body weight is sensed by the sensor, it can be considered that this signal corresponds to the abnormal behavior pattern.

Further, when a signal of a tag attached to a patient is sensed at the bed, but the patient's body weight exceeds a tolerance, when a signal of a tag attached to a patient is sensed at the lounge, but the patient's body weight is sensed at the bed, and so on, they all correspond to the abnormal behavior patterns.

The pieces of information may be input to the database server 14 or may be input and stored in the database server 14 as general default values before a patient is hospitalized.

<Embodiment 3 of a system>

FIG. 4 shows still another embodiment of the patient's state cognition system for preventing an unreasonable demand of the insurance employing the RFID technology according to the present invention. Referring to FIG. 4, the patient's state cognition system employing the RFID technology according to the embodiment 3 of the present invention includes a near-field antenna 17, which is attached to a patient's medical treatment records and generates a specific radio frequency (for example, about 13.56Mhz in the present invention), thus driving a near- field RFID tag 18 supplied to medical staff, the near-field RFID tag 18, which is supplied to the medical staff, such as a doctor and a nurse, and generates an information signal unique to the medical staff in response to the specific frequency signal of the near-field antenna, buttons 20, which are installed at a patient ward and transmit information, including a medical examination and treatment, a doctor's round of visits, an emergence call, etc., which are the visit purposes of the medical staff, and a near-field reader 19, which is mounted in the patient ward and senses information from the medical staff, which is generated from the near-field RFID tag 19 and the buttons 20 installed at the patient's medical treatment records, and transmits the sensed information to the management server 13, along with the constituent elements according to the embodiment 1 of the patient's state cognition system employing the RFID technology and the embodiment 2 of the patient's state cognition system employing the RFID technology and the sensor.

The near-field antenna 17, the RFID tag 18 and the reader 19 have almost the same construction and function as those described in the embodiment 1. However, the near-field antenna 18 and the reader 19 of the present embodiment are mounted in each

patient ward, and the RFID tag 18 is attached to the medical staff's medical clothing.

The RFID tag may also be attached to a hidden place, such as a jacket's pocket or button, in the medical staff's medical clothing, or an identification tag of the medical staff. Further, the signal of the near- field antenna 17 has a low frequency band and responds to when the medical staff visits a specific patient since it has a near valid range.

The buttons 20 mounted in the ward are adapted to selectively generate signals regarding a medical examination and treatment, a doctor's round of visits, an emergence call, etc., which are the visit purposes of the medical staff. Thus, if the medical staff presses a button suitable for a visit purpose, of the buttons 20, the signal suitable for the visit purpose of the medical staff is sent to the reader 19 through a cable. The signal is sent to the management server 13 through a communication network.

However, the buttons of the present embodiment are not limited to the ward, but may be installed any place in which information can be easily sensed and input upon medical treatment of a patient near the patient.

In the embodiment 3, the information stored in the database server 14 includes information in which information of the RFID tag, information of the sensor, information of the medical staff tag, and the information of the buttons are combined in order to determine a normal behavior pattern or an abnormal behavior pattern. For example, the normal behavior pattern may correspond to a case where an irregular movement signal of a patient is sensed, a case where a signal, indicating that a patient is in the bed when the medical staff visits the patient, is sensed, and so on.

The abnormal behavior pattern may correspond to a case where a signal, indicating that a patient stays at one place (for example, the bed) for a long time, is

sensed, a case where a tag signal is sensed at places other than the bed of the ward when the medical staff gives medical treatment, a case where a tag signal is sensed from a patient bed when the medical staff gives medical treatment, but a patient's body weight is not sensed, and so on. The pieces of information can be input to the database server 14 or may be input and stored in the database server 14 as a general default value before a patient is hospitalized.

To accomplish the technical objects, the present invention may have the following methods of embodiments using the embodiments of the system. <Embodiment 1 of a method>

FIG. 5 is a flowchart illustrating a patient's state cognition method for preventing an unreasonable demand of the insurance according to an embodiment of the present invention.

The patient's state cognition method according to an embodiment of the present invention includes a first step of allowing the antenna 10, which is installed at a specific place of a hospital, to generate a specific radio frequency signal in order to cognize a patient's behavior pattern, a second step of allowing the RFID tag 11, which is installed at the patient's clothing, to operate in response to the signal of the antenna 10 when the RFID tag 11 falls within a valid range of the frequency of the antenna, which is generated in the first step, and thus transmit information unique to the patient, a third step of allowing the reader 12 to receive the patient information of the RFID tag 11, which is transmitted in the second step, and transmit the received patient information to the management server 13 along with position information of the reader 12, a fourth step of allowing the management server 13 to receive the patient information of the RFID tag 11

and the position information of the reader, which are transmitted in the third step, a fifth step of allowing the management server 13 to compare the information about the patient, which is transmitted in the fourth step, with behavior pattern information stored in the database server 14, a sixth step of allowing the management server 13 to analyze the information compared in the fifth step and determine whether the analyzed information corresponds to a normal behavior pattern or an abnormal behavior pattern, and a seventh step of, if, as a result of the determination in the management server 13, it is determined that the patient's behavior pattern corresponds to the abnormal behavior pattern, allowing the web server 15 to transmit the determination result to the public insurance corporation server 100 through the Internet and then the management server 13 to display the determination result on the hospital side, and if, as a result of the determination in the management server 13, it is determined that the patient's behavior pattern corresponds to the normal behavior pattern, allowing the web server 15 not to transmit the determination result to the public insurance corporation server 100. In the first step, the antenna 10 installed at a specific place of a hospital always operates to generate a specific radio frequency signal within a valid range. In a preferred embodiment, the antenna, which may be installed at a bed, a ward gate, a rest room, a lounge and a promenade of a hospital, always generates a radio frequency.

The generated radio frequency drives the RFID tag 11 when the RFID tag 11 falls within a valid range of the frequency generated from the antenna.

In the second step, if a patient falls within the valid range of the frequency of the antenna 10, the RFID tag 11 attached to the patient clothing is changed from an idle state to an operation state in response to the radio frequency generated from the antenna in the first step, and then sends ID information unique to the patient, which is stored in its

embedded chip, to the reader 12 through a radio frequency.

In the third step, the reader 12, which is mounted together with the antenna 10 and disposed within the same area as that of the antenna 10, receives the radio frequency transmitted from the RFID tag. The reader 12 sends the ID information of the patient and information about the position of the reader to the management server 13 over a communication network.

In the fourth step, the management server 13 receives the information transmitted from the reader 12 in the third step and arranges information about each patient's behavior pattern using a management program. In the fifth step, the management server 13 compares a behavior pattern, which is stored in the database server 14 when the patient is normally the hospitalized, with the information about the behavior pattern transmitted in the fourth step. The information stored in the database server 14 may include position information about a normal behavior pattern or abnormal behavior pattern of a patient, information about whether the patient is in a ward or not, information about time, and so on. Examples of the pieces of information may include the behavior patterns described in the embodiments of the system.

In the present invention, a method of determining the normal behavior pattern and the abnormal behavior pattern can be performed based on a signal of the RFID tag 11 of a patient hospital clothing, a signal of the sensor 16 using a load cell, or signals of the RFID tag 18 of the medical staff and the button 20, or a combination of the signals.

As mentioned above, the normal behavior pattern may correspond to a case where a patient's irregular movement signal is sensed, a case where a signal, indicating that a patient is in the bed when the medical staff visits the patient, is sensed, and so on.

Further, the abnormal behavior pattern may correspond to a case where a tag signal, indicating that a patient stays at one place (for example, the bed) for a long time, is sensed, a case where a tag signal is sensed at a place other than the bed of the ward, a case where a tag signal is sensed at a patient's bed, but the patient's body weight is sensed when the medical staff gives medical treatment, and so on.

Thus, if an intersection of the contents of signals is found using the signals of the RFID tags 11, 18, the sensor 16 and the button 20 as described above, a combination of patients' general behavior patterns can be found. It can become a basis for determining the patients' behavior patterns and can be used to determine the patients' behavior patterns.

In the sixth step, it is determined whether the information compared in the fifth step corresponds to the normal behavior pattern or the abnormal behavior pattern.

In the seventh step, when the abnormal behavior pattern appears, the management server 13 sends information about the occurrence of the patient's abnormal behavior pattern to the public insurance corporation server 100 through the web server 15.

Further, the occurrence of the abnormal behavior pattern is displayed on the hospital side so that whether the patient is in the ward can be determined.

Further, if abnormality occurs in the patient, a hospital can take necessary measures immediately. Hereinafter, when the patient's behavior pattern corresponds to the normal behavior pattern, the management server does not send the patient's information to the public insurance corporation server 100, but finishes the process. This can minimize the drain of a patient's personal information and can protect the patient's privacy.

<Embodiment 2 of a method>

FIG. 6 is a flowchart illustrating a patient's state cognition method for preventing an unreasonable demand of the insurance according to another embodiment of the present invention.

The patient's state cognition method according to another embodiment of the present invention includes a first step of allowing the antenna 10, which is installed at a specific place of a hospital, to generate a specific radio frequency signal in order to cognize a patient's behavior pattern, a second step of, when the RFID tag 11 attached to the patient's clothing falls within a valid range of the frequency of the antenna 10, which is generated in the first step, allowing the RFID tag 11 to operate in response to the signal of the antenna 10 and send information unique to the patient, and allowing the sensor 16 installed at the patient's bed to sense the patient's behavior pattern and send the patient' state information, a third step of allowing the reader 12 to receive the patient information of the RFID tag 11, which is transmitted in the second step, and the patient state information sensed by the sensor 16 and send the received information to the management server 13 along with position information of the reader 12, a fourth step of allowing the management server 13 to receive the patient information of the RFID tag 11, the patient state information sensed by the sensor 16, and the position information of the reader 12, which are transmitted in the third step, a fifth step of allowing the management server 13 to compare the information about the patient, which is transmitted in the fourth step, with behavior pattern information stored in a database server 14, a sixth step of allowing the management server 13 to analyze the information compared in the fifth step and determine whether the analyzed information corresponds to a normal behavior pattern or an abnormal behavior pattern, and a seventh step of, if, as a result of the determination in the management server 13, it is determined that the patient's behavior

pattern corresponds to the abnormal behavior pattern, allowing the web server 15 to transmit the determination result to the public insurance corporation server 100 through the Internet and then the management server 13 to display the determination result on the hospital side, and if, as a result of the determination in the management server 13, it is determined that the patient's behavior pattern corresponds to the normal behavior pattern, allowing the web server 15 not to transmit the determination result to the public insurance corporation server 100.

The embodiment 2 is almost the same as the embodiment 1 and, therefore, the differences between the embodiment 2 and the embodiment 1 are largely described below.

The first step is the same as that of the embodiment 1. In the second step, the RFID tag 11 is driven to send information unique to the patient as a radio frequency signal. Further, the sensor 16 installed at the patient's bed senses the patient's behavior pattern and sends the patient' state information. In other words, the heat sensor, the vibration sensor, the weight sensor or the like senses the behavior pattern of the patient who lies in the bed.

In the third step, the reader receives the signal of the RFID tag 11 and the information signal sensed by the sensor 16, which are generated in the second step, and sends them to the management server 14 along with its position information. The fourth to seventh steps are the same as those of the embodiment 1.

<Embodiment 3 of a method>

This embodiment relates to a patient's state cognition method for preventing an unreasonable demand of the insurance according to still another embodiment of the present invention with respect to FIG. 6.

The patient's state cognition method includes a first step of allowing the antenna 10, which is installed at a specific place of a hospital, to generate a specific radio frequency signal in order to cognize a patient's behavior pattern, and allowing the near-field antenna 17, which is mounted in the patient's medical treatment records, to generate a specific radio frequency signal in order to know the position of a medical staff, a second step of, when the RFID tags 11, 18 of the patient and the medical staff fall within a valid range of the frequencies of the antenna 10 and the near-field antenna 17, which are generated in the first step, allowing the RFID tag 11, which is attached to the patient's clothing, and the near-field RFID tag 18 of the medical staff's clothing, to operate in response to the signals of the antennas and then transmit information unique to the patient and the position information of the medical staff, respectively, allowing the sensor 16, which is installed at the patient's bed, to sense the patient's behavior pattern and then transmit the patient' state information, and allowing the medical staff to press the buttons 20, which are mounted in the patient's medical treatment records, according to the purpose of a visit to the patient and then transmit a specific signal, a third step of allowing the readers 12,19 to receive the patient information and the position information of the medical staff from the RFID tags 11,18, the patient state information sensed by the sensor 16, and the signal transmitted from the buttons 20, which are mounted in the patient's medical treatment records and pressed by the medical staff, all of which are transmitted in the second step, and then transmit the information to the management server 13 along with position information of the readers 12,19, a fourth step of allowing the management server 13 to receive the position information, the state information, etc., which are transmitted in the third step, a fifth step of allowing the management server 13 to compare the information about the patient, which is transmitted in the fourth step, with

behavior pattern information stored in a database server 14, a sixth step of allowing the management server 13 to analyze the information compared in the fifth step and determine whether the analyzed information corresponds to a normal behavior pattern or an abnormal behavior pattern, and a seventh step of, if, as a result of the determination in the management server 13, it is determined that the patient's behavior pattern corresponds to the abnormal behavior pattern, allowing the web server 15 to transmit the determination result to the public insurance corporation server 100 through the Internet and then the management server 13 to display the determination result on the hospital side, and if, as a result of the determination in the management server 13, it is determined that the patient's behavior pattern corresponds to the normal behavior pattern, allowing the web server 15 not to transmit the determination result to the public insurance corporation server 100.

In the first step, not only the antenna 10 installed at a specific area of a hospital generates a radio frequency of about 900Mhz, but also the near-field antenna 17 installed at medical treatment records also generates a near-field radio frequency of 13.65Mhz.

Therefore, if a medical staff approaches the medical treatment records of the patient in order to give medical treatment, the medical staff falls within a valid range of the antenna 17, so the radio frequency of the antenna drives the RFID tag 18 attached to the medical staff's clothing. In the second step, the RFID tags 11, 18 of the patient and the medical staff are driven in response to the signals generated from the antennas 10, 17, so that information unique to the patient and the information of the medical staff are transmitted to the readers 12, 19 through a radio frequency.

Then, if the medical staff presses the buttons 20, which are mounted in the

patient's medical treatment records and suitable for a visit purpose, a corresponding signal is generated and then sent to the reader 19 over a communication network. At this time, information about the patient's behavior pattern sensed by the sensor 16 is also transmitted to the reader 19. In the third step, the readers 12, 19 receive the signal of the RFID tag 11 of the patient, the signal of the near- field RFID tag 18 of the medical staff, and the signal of the button 20, which are generated in the second step, and send them to the management server 13 over a communication network along with its position information.

The third to seventh steps are the same as those of the embodiment 2, and description thereof is omitted.

In the embodiments 2 and 3, more preferably, when the information about the patient's behavior pattern compared in the fifth step is an abnormal pattern, informing the abnormality of the patient health, a signal is sent to the medical staff in order to prevent a danger of the patient. This is possible because the fact that the patient's received behavior pattern is different from a behavior pattern, which is stored in the database server when the patient is healthy, can be detected rapidly.

In emergency in which an emergency call signal cannot be sent when a patient is at stake, a medical staff can be contacted rapidly, so the patient's life can be saved.