KR100729144B1 - Method for transmitting code about partial human body and system thereof - Google Patents

Abstract

A method and a system for transmitting a partial body code of a user are provided to monitor a physical state of the user in real-time by minimizing equipment used for telemedicine, as the partial body code is transmitted from a sensor attached to each body part. A body sensor network server(120) stores a fixed address code of the user and a code number database table. A sync node(100) is attached to skin of the user and obtains the fixed address code from the body sensor network server through the Internet(110). A sensor part(130) is attached to each body part of the user, obtains position information from the sync node, and detects body sensing data of the user. A diagnosis system(140) receives the fixed address code from the sync node, and receives the position information and the body sensing information from the sensor part through the Internet. The body sensor network server assigns the fixed address code of the user to the sync node. The fixed address code is expressed as an absolute address representing a range, a scale, longitude, latitude, and altitude.

Description

Method for transmitting code about partial human body and system

1 is a block diagram of a code transmission system for a user's body part according to an embodiment of the present invention.

2 is a block diagram of a code transmission system for a user body part according to another embodiment of the present invention.

FIG. 3A is in accordance with FIGS. 1 and 2 The absolute address of a fixed address code is shown.

3b shows a scale of the fixed address code according to FIGS. 1 and 2.

4A is an exemplary diagram of a human body code database table centered on the skeletal system according to FIGS. 1 and 2.

4B is an exemplary diagram of a human body code database table centered on the muscular system according to FIGS. 1 and 2.

5 is a flowchart illustrating a code transmission method for a body part of a user according to an exemplary embodiment of the present invention.

FIG. 6 is a detailed flowchart of a process of obtaining a fixed address code of FIG. 5.

FIG. 7 is a detailed flowchart of a process of acquiring position information of the sensor of FIG. 5.

8 is a flowchart illustrating a code transmission method for a body part of a user according to another exemplary embodiment of the present invention.

The present invention relates to ubiquitous health, and more particularly, to a method and a system for transmitting a code for a user's body part.

Ubiquitous Health (U-Health) is a representative realization method of ubiquitous IT and is emerging as an industry area that will make human life the most dramatic. U-Health means connecting ICT and health care to provide health care services of prevention, diagnosis, treatment and follow-up care anytime and anywhere. U-Health is a paradigm that developed E-Health, which emerged as the industrialization of IT advanced, focusing on health care consumers.

If E-Health means exchanging health care information electronically between citizens, patients, health care providers, IT providers, and solution providers, U-Health is not limited to the exchange of health care information. It is a concept that connects the physical space that encompasses and the provider and the electronic space of advanced health care technology networked. If E-Health is an exchange-oriented concept centered on health care providers, U-Health extends to a paradigm of connection and application, which means that it is inherent in the life and care of health care subjects.

Through U-Health, the general public, patients, the disabled and the elderly can periodically check the health status through various wired and wireless communication networks at home or in medical care institutions, and maintain high levels of health through proactive prevention. In addition, medical devices from health care providers are networked, enabling medical staff to more easily diagnose, treat and follow up. This is only a fragment of U-Health, which will be developed in the future, and it will be developed greatly according to the evolution of technology, the establishment of institutions, and the culture of health care.

The most distinctive feature of U-Health is that it makes it possible to realistically achieve much of the health care goals. Recently, health care has been developed with emphasis on safety, efficiency, user-centeredness, timeliness, effectiveness, and balance. Through U-Health, health care can provide timely and securely appropriate services anytime, anywhere. It also saves time and money for both health care providers and employers, promotes a change in the health care environment from the center of the hospital to a healthy citizen, and balances the entire health care process from prevention to diagnosis, treatment and follow-up.

The background of U-Health is the development of information and communication technology, the need of health care providers, the increasing demand of health users, the expansion of the business area of service providers and solution providers, and the promotion policy of health care authorities. Can be. As broadband-based network technology has evolved, it is possible to transfer large amounts of information at high speeds in wired and wireless communication networks. Advances in multimedia processing and storage technology and the emergence of radio frequency identification (RFID) chips equipped with communication functions It is becoming a medium that promotes the development of new health care areas. As disease patterns change, new diseases continue to emerge, and environmental threats increase, it is necessary for health care providers to integrate various health information and establish a prompt medical care system. It's accelerating the emergence of Health.

On the other hand, the recent biochip research has been used in various fields such as DNA chips, protein chips, and cell chips, such as biosensors and bioinsertion chips, depending on biomaterials. In order to provide various tools that can be used to connect with a medical institution through a communication network, the demand for examination and medical care is increasing.

However, in the current telemedicine technology, when multiple sensors are attached to a user's body, the body sensing data transmitted by the diagnostic system is not able to determine whether or not the sensor information is located in the body. The problem is the need for technology and video and sound equipment.

Accordingly, the first technical problem to be achieved by the present invention is to provide a method for transmitting a code for a user's body part capable of real-time monitoring of the user's physical condition by minimizing the equipment to be performed for remote medical care.

The second technical problem to be achieved by the present invention is to provide a code transmission system for a user's body parts using the code transmission method for the body parts.

The present invention to achieve the first technical problem,

Acquiring a fixed address code of the user from a human body sensor network server through an internet network by a sink node attached to a user's body skin, wherein a sensor attached to a predetermined portion of the user's body skin is received from the sink node. Acquiring position information of a sensor; detecting, by the sensor, body sensing data of the user; and receiving, by the sink node, the static address code of the sink node, body sensing data of the sensor, and the sensor through the Internet network. It provides a method for transmitting a code for a body part of a user comprising the step of transmitting the location information of the diagnostic system.

The present invention to achieve the first technical problem,

The sensor storing the unique code information is attached to the user's body skin for each part, the sensor detects the body sensing data of the user, the sink node storing the unique identifier from the sensor is the unique code information And receiving the body sensing data, transmitting, by the sink node, unique code information of the sensor, body sensing data, and an identifier of the sink node to a diagnosis system through an internet network, and wherein the diagnosis system transmits the code. The present invention provides a method of transmitting a code for a part of a user's body including converting information into location information and converting the identifier into a fixed address of a user.

The present invention to achieve the second technical problem,

A human body sensor network server storing a user's fixed address code and a human code number database table, a sink attached to the user's body skin and obtaining a fixed address code of the user from the human body sensor network server through an internet network. A node unit, which is attached to the body skin of the user for each part, obtains location information from the sink node unit, detects the body sensing data of the user, and a sensor unit, and a fixed address code of the sink node unit through the Internet network. The present invention provides a code transmission system for a user's body part including a diagnosis system for receiving position information of the sensor unit and body sensing data of the sensor unit.

The present invention to achieve the second technical problem,

A sensor unit for storing the unique code information, attached to each part of the user's body skin, and detecting the user's body sensing data, a unique identifier, attached to the body skin of the user, and unique to the sensor part. A sync node for receiving code information of the sensor unit and body sensing data of the sensor unit, and receiving the body sensing data and the unique code information of the sensor unit from the sink node unit and an identifier of the sink node unit through an internet network. It provides a code transmission system for a user's body part including a conversion diagnostic system unit for converting the code information into position information, and converts the identifier into a fixed address code of the user.

Hereinafter, with reference to the accompanying drawings will be described the present invention in more detail.

1 is a block diagram of a code transmission system for a user body part according to an embodiment of the present invention.

First, the sink node unit 100 attached to the body skin of the user is a fixed address code and human code database of the user from the human body sensor network (HBSN) server 120 through the Internet network 110 Get a reference to the table.

Preferably, the sink node unit 100 may include a fixed address code allocation request unit 101 and an address code binding unit 102. The static address code assignment requesting unit 101 may request the human body sensor network server 120 to assign a static address code of its sink node unit 100 through the Internet network 110.

In addition, the sync node unit 100 receives a reference to the human code database table of the user from the human body sensor network server 120 through the Internet network 110, and based on the received reference, each part of the user's body Location information may be provided to the sensor unit 130 attached to each star.

The human body sensor network server 120 transmits a fixed address code to the address code binding unit 102 included in the sink node 100 by assigning a fixed address code according to a user's request, and the sink node unit 100. Sends a reference to the human code database table.

The address code binding unit 102 receives a fixed address code of the user from the human body sensor network server 120 and stores the fixed address code of the user in the address code binding unit 102. The stored static address code becomes the user's own fixed address code.

The sensor unit 130 attached to each part of the user's body skin obtains position information from the sink node unit 100, detects the user's body sensing data, and positions the user's body sensing data and the sensor unit 130. The information is transmitted to the sink node unit 100. Apart from storing the fixed address code of the user in the address code binding unit 102, the sink node unit 100 receives the human code number database table from the human body sensor network server 120, and the sink node 100 itself. Position information is provided to each sensor unit 130 in the bound area.

The sink node unit 100 collects the position information of the sensor unit 130 and the body sensing data of the sensor unit 130 to collect a fixed address code of the sink node unit 100 and the sensor unit 130 through the Internet network 110. Location information and body sensing data of the sensor unit 130 are transmitted to the diagnosis system 140.

The diagnosis system 140 refers to the fixed address code of the sink node 100 transmitted from the sink node 100, the position information of the sensor 130, and the body sensing data of the sensor 130 in real time. Perform remote medical care by monitoring user status.

2 is a block diagram of a code transmission system for a user body part according to another embodiment of the present invention.

The sensor unit 200, which is attached to the body skin of the user for each part and stores unique code information, detects the user's body sensing data to detect the body sensing data of the sensor unit 200 and the code unique to the sensor unit 200. Send the information.

The sink node 210, which is attached to the user's body skin and stores a unique identifier, receives the body sensing data of the sensor unit 200 and the unique code information of the sensor unit 200 to receive the sink node unit 210. ) Unique identifier, body sensing data of the sensor unit 200 and code information unique to the sensor unit 200 are transmitted to the conversion diagnosis system unit 230.

The conversion diagnosis system unit 230 may identify an identifier unique to the sink node 210, a body sensing data of the sensor unit 200, and a code unique to the sensor unit 200 from the sink node 210 through the Internet network 220. Receive information. The conversion diagnosis system unit 230 converts the unique identifier received from the sink node unit 210 into a fixed address code of the user, and the body sensing data and the unique body of the sensor unit 200 received from the sink node unit 210. Receives the code information of the sensor unit 200 converts the unique code information to the position information of the sensor unit 200.

The translation diagnosis system unit 230 stores the human code number database table including the user's fixed address code for the unique identifier and the location information of the sensor unit 200, so that the uniqueness of the sync node unit 210 is transmitted. The identifier can be converted into a fixed address code of the user, and the code information of the sensor unit 200 is converted into the position of the sensor unit 200 by referring to the code information of the received sensor unit 200 with reference to a human code number database table. The conversion diagnostic system unit 230 may determine which part of the user's body comes from the sensor unit 200. 1, unlike the human body sensor network server 120 being separated from the diagnosis system 140, the transformation diagnosis system unit 230 performs the role of the human body sensor network server 120 together.

The present invention is based on a method and system for transmitting a code for a user's body part by assigning a user's sink node a code of a human body code to a fixed address code and expressing each part of the human body using a human code number database table. I am doing it. According to the grammar of the language to which the code is assigned, the grammar of the code representing the location and range is represented by a fixed address code.

In the present invention, the fixed address code is expressed as an absolute address indicating a range scale and latitude, longitude, and altitude.

FIG. 3A shows the absolute address of the fixed address code according to FIGS. 1 and 2, and FIG. 3B shows the scale of the fixed address code according to FIGS. 1 and 2.

Referring to Figures 3a and 3b will be described in detail the grammar of the code indicating the location and range of the user.

Fixed address codes are represented by range scales and absolute addresses. Referring to FIG. 3A, the scale is expressed as a scale of a range concept corresponding to each of the latitude 301, the longitude 302, and the altitude 303. The absolute address may use a system indicating the latitude, longitude, and altitude set by the designer of the system, and the present invention is not limited thereto.

If the code system of the address where the diagnostic system is located is (1, 2, 1) (40, 60, 10), and this address is the origin of the fixed address code, the fixed address code of the diagnostic system is measured (1, 2, 1). , It becomes absolute address (0, 0, 0) and is expressed as (1, 2, 1) (0, 0, 0).

If the user's latitude, longitude, and altitude are (90, 80, 40), then the latitude, longitude, and altitude values (40, 60, 10) of the origin are subtracted from (50, 20, 30), and this value is measured ( Dividing by 1, 2, 1), (50, 10, 30) is the absolute address of the user with latitude, longitude and altitude of (90, 80, 40). Thus, (1, 2, 1) (50, 10, 30) is represented as the user's fixed address code.

Referring to FIG. 3B, when the code system representing the scale is (a _m , b _m , c _m ) 390, a _m represents a measure of latitude divided into m levels, and b _m represents a length divided into m levels. The scale, c _m, is a measure of altitude divided into m levels. If the code system of the scale is (1, 1, 1) (310) indicates a basic scale that is not subdivided, in which case the scale may be omitted. When the code system of the scale is (2, 2, 2) (320) indicates a scale obtained by dividing the latitude, longitude, and altitude into two levels, and when the code system of the scale is (3, 3, 3) (330 ) Is a three-level subdivision of latitude, longitude, and altitude. On the other hand, when the scale is (1, 2, 1), only the hardness is divided into two levels.

4A is an exemplary diagram of a human body code database table centered on the skeletal system according to FIGS. 1 and 2. Referring to FIG. 4A, codes of respective parts of the human body 400 are encoded by hierarchically subdividing body parts about a skeletal system. With the human body 400 as the topmost entity, Layer 1 is the largest skeleton and consists of the skull (A), spine (B), rib cage (C), upper extremity (D), and lower extremity (E), and layer 2 Code fragments layer one. The skull (A) is coded into a cranial skull (A-1), facial bone (A-2), layer 3 is further subdivided layer 2 to the frontal bone (A-1-1), laryngeal bone (A-1-2), etc. It is subdivided into, and it is coded continuously so that it is finally coded up to a layer that can attach and sense the sensor.

4B is an exemplary diagram of a human body code database table centered on the muscular system according to FIGS. 1 and 2. Referring to FIG. 4B, the codes of the respective parts of the human body 410 are encoded by subdividing each of the human parts 410 into layers based on the muscular system in the same manner as the coded in FIG. 4A. Similarly, with the human body 410 as the topmost entity, Layer 1 is the highest muscular system and the front of the body is coded A 'and the back of the body is coded B'. Layer 2 is also coded by subdividing Layer 1, and subdividing the front face (A ') of the body is A'-1 for the head and neck, A'-2 for the torso, A'-3 for the arm, and A' for the leg. Encoded as -4. Layer 3 subdivides Layer 2 so that the left arm is coded A'-3-1 and the right arm is A'-3-2. In this way, it can be segmented continuously to finally code the layers to which the sensor can be attached and sensed.

5 is a flowchart illustrating a code transmission method for a body part of a user according to an exemplary embodiment of the present invention.

First, the sink node attached to the user's body skin obtains the user's static address code from the human body sensor network server through the Internet network (step 500). The sink node requests a user's static address code assignment from the human body sensor network server through the Internet network. The fixed address code is a code for identifying the user by connecting the user's fixed address code and the user's personal information in the diagnostic system. This code is used to distinguish individual users from each other and is called a user's fixed address code.

When the fixed address code of the user is obtained, the sensor attached to a predetermined portion of the user's body skin obtains the position information of the sensor from the sink node (step 510). The sensor is attached to a predetermined area to be diagnosed by the user, and each sensor stores its own code. This is based on the reference to the code of the sensor and the database table received from the human body sensor network server through the process shown in Figure 7 to be described later, each sensor obtains its own location information. The code of the sensor is encoded based on FIG. 4A or 4B and stored in the sensor attached to each part of the body.

On the other hand, the user is attached to the sensor made for the purpose to be diagnosed, the sensor measures the user's pulse, body temperature, blood pressure or blood sugar, etc., the present invention is not limited thereto.

Next, the sensor detects the user's body sensing data (step 520). Sensors attached to each part of the human body measure a user's pulse, body temperature, blood pressure or blood sugar, and the like, and each sensor transmits body sensing data and location information of each sensor to the sink node in real time. As the transmission method, a method using RFID (Radio Frequency IDentification) may be used.

Finally, the sink node transmits the static address code of the sink node, the body sensing data of the sensor, and the position information of the sensor to the diagnosis system through the internet network (S530). The sync node stores a user's fixed address code, sensor's body sensing data and sensor's location information transmitted in real time. The sink node transmits this information to the diagnosis system through the Internet network. The diagnosis system recognizes the user through the static address code information of the sink node based on the received information, and attaches the information to the user's body for each part. The user's status is determined in real time through the sensor's location information and body sensing data.

FIG. 6 is a detailed flowchart of the fixed address code acquisition process 500 of FIG. 5.

The sink node requests the user's static address code assignment from the human body sensor network server to obtain the user's fixed address code (step 601). This process is performed through the Internet network, the fixed address code is a code for identifying the user by connecting the user's fixed address code and the user's personal information in the diagnostic system. This code is used to distinguish individual users from each other and is called a user's fixed address code.

When the user's static address code assignment is requested, the human body sensor network server allocates the user's static address code to the sink node (step 602). The human body sensor network server receives a request for assigning a fixed address code from a sink node attached to the user's body, assigns a fixed address code to the user, and the human body sensor network server sends the fixed address code to the sink node. Stored in the human body sensor network server. This fixed address code assigned to the sink node is a unique identification code of the user to be diagnosed.

If a fixed address code is assigned, the sink node binds the user's fixed address code (step 603). The sink node binds a static address code assigned by the human body sensor network server to receive the location information and body sensing data of the sensor attached to each part of the human body from each sensor and receives the fixed address code of the bound user. Together with the diagnostic system. Based on this information, the diagnosis system identifies the user information and monitors the user's physical condition in real time based on the location information and body sensing data of the sensors of the user and utilizes it for telemedicine.

FIG. 7 is a detailed flowchart of a process of obtaining position information of the sensor of FIG. 5 (operation 510). In order to acquire the location information of the sensor attached to each part of the human body, the sink node receives a reference of the human code number database table of the user from the human body sensor network server (step 711). The sink node requests a user's fixed address code from the human body sensor network server and requests a reference to the human code number database table. The sink node receives the static address code according to the request and binds it to the sink node. The sink node receives a reference of the human code number database table and stores the reference in the sink node. The human code number database table is connection information of names of respective parts of the body to codes based on FIGS. 4A and 4B.

Upon receiving the reference, the sink node provides location information to the sensor according to the reference of the human code number database table stored in the sensor (step 712).

The sensors store the code information according to FIG. 4A or 4B at the time of manufacture. The sensor stores its location information based on the reference of the human code number database table received by the sink node from the human body sensor network server. That is, the sensor stores its location information by connecting the code information and the location information of the sensor based on the human code number database table received by the sensor. The sensor storing the location information transmits the body sensing data and its location information to the sink node.

8 is a flowchart illustrating a code transmission method for a body part of a user according to another exemplary embodiment of the present invention. This method is a method in which a diagnostic system performs a role of a human body sensor network server without separately configuring a human body sensor network server.

First, a sensor storing unique code information is attached to each part of the user's body skin to detect the user's body sensing data (step 800). The sensor is attached to a predetermined area to be diagnosed by the user, and each sensor stores its own code. On the other hand, the user is attached to the sensor made for the purpose to be diagnosed, the sensor measures the user's pulse, body temperature, blood pressure or blood sugar, etc., the present invention is not limited thereto. Sensors attached to each part of the human body measure a user's pulse, body temperature, blood pressure or blood sugar, and each sensor transmits body sensing data measured in real time and code information of each sensor to the sink node. As a transmission method, a method using RFID (Radio Frequency IDentification) may be used, and the present invention is not limited thereto.

Next, the sink node storing the unique identifier receives the body sensing data and the unique code information of the sensor (step 810). The sink node stores a unique identifier at the time of manufacture, and a sensor is attached to a predetermined area to be diagnosed by a user, and each sensor also stores its own code. The sink node receives sensor-specific code information and sensor data.

The sink node receiving the body sensing data and the unique code information of the sensor transmits the body sensing data of the sensor, the unique code information and the identifier of the sink node to the diagnosis system through the Internet network (S820). The sync node stores the user's identifier, sensor's body sensing data and sensor-specific code information transmitted by the sensor in real time. The sink node transmits this information to the diagnostic system through the Internet network.

Finally, the diagnostic system converts code information of the sensor into location information of the sensor and converts the identifier into a fixed address of the user (step 830). The diagnostic system stores a database table for sensor code information and information about fixed address codes for user unique identifiers. With reference to this, the diagnostic system converts the code information of the sensor received from the sink node through the internet network into the position information of the sensor, and converts the unique identifier of the sink node into a fixed address of the user. Based on the above information, the diagnosis system recognizes the user through the fixed address code information of the sink node and determines the user's state in real time through the location information and the body sensing data of the sensor attached to each part of the user's body.

The present invention can be embodied as code that can be read by a computer (including all devices having an information processing function) in a computer-readable recording medium.

The computer-readable recording medium includes all kinds of recording devices in which data is stored which can be read by a computer system. Examples of computer-readable recording devices include ROM, RAM, CD-ROM, magnetic tape, floppy disks, optical data storage devices, and the like. Computer-readable recording media are distributed and distributed over networked computer devices. Computer readable code may be stored and executed in such a manner.

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

As described above, according to the present invention, by assigning a code for each body part of the human body, the diagnostic system receives the body sensing data and the position information of the sensor attached to each part of the user's body so that the body sensing data is transmitted to the body. It is possible to determine whether or not the information of the sensor in which area can increase the reliability of the remote medical care, there is an effect that can effectively perform remote medical care regardless of time and space constraints by minimizing the equipment to be performed.

Claims (11)

Acquiring, by the sink node attached to the body skin of the user, the fixed address code of the user from a human body sensor network server through an internet network; Acquiring position information of the sensor from the sink node by a sensor attached to a predetermined portion of the skin of the user; Detecting, by the sensor, body sensing data of the user; And And transmitting, by the sink node, the static address code of the sink node, the body sensing data of the sensor, and the location information of the sensor to a diagnosis system through the internet network. The method of claim 1, Acquiring the fixed address code, Requesting, by the sink node, the human body sensor network server to allocate a fixed address code of the user; Assigning, by the human body sensor network server, the fixed address code of the user to the sink node; and And binding, by the sink node, the fixed address code of the user to the body part of the user. The method of claim 1, The fixed address code is, Code transmission method for a user's body parts, characterized in that expressed in absolute address indicating the range scale and latitude, longitude and altitude. The method of claim 1, Acquiring the location information by the sensor, The sink node receiving a reference of the human code number database table of the user from the human body sensor network server; And And providing, by the sink node, the sensor with the location information according to the reference. The method of claim 4, wherein The human code number database table of the user, Code transmission method for a user's body parts, characterized in that the user's body parts are arranged hierarchically. A sensor storing unique code information is attached to the user's body skin for each part, and the sensor detecting the body sensing data of the user; Receiving, by the sink node storing the unique identifier from the sensor, the unique code information and the body sensing data; Transmitting, by the sink node, unique code information of the sensor, body sensing data, and an identifier of the sink node to a diagnosis system through an internet network; And And converting, by the diagnostic system, the code information into location information, and converting the identifier into a fixed address of the user. A human body sensor network server storing a user's fixed address code and human code number database table; A sink node unit attached to the body skin of the user and acquiring the fixed address code of the user from the human body sensor network server through an internet network; A sensor unit which is attached to the body skin of the user for each part, obtains position information from the sink node unit, and detects body sensing data of the user; And And a diagnostic system configured to receive a fixed address code of the sink node, position information of the sensor unit, and body sensing data of the sensor unit through the internet network. The method of claim 7, wherein The human body sensor network server, And assigning a fixed address code of the user to the sink node. The sink node unit, A fixed address code assignment request unit requesting the human body sensor network server to allocate a fixed address code of the user; And And an address code binding unit for binding the obtained fixed address code to the user's body part. The method of claim 7, wherein The fixed address code is, Code transmission system for a user's body part, characterized in that expressed in absolute address indicating the range scale and latitude, longitude and altitude. The method of claim 7, wherein The sink node unit, Receiving a reference of the human code number database table of the user from the human body sensor network server, and providing the position information according to the reference to the sensor unit. A sensor unit which stores unique code information, is attached to the body skin of the user for each part, and detects the body sensing data of the user; A sink node configured to store a unique identifier, attached to body skin of the user, and receive code information unique to the sensor unit and body sensing data of the sensor unit; And Receive the body sensing data and the unique code information of the sensor unit from the sink node unit and the identifier of the sink node unit via the Internet network to convert the unique code information into position information, and the identifier of the fixed address code of the user Code transmission system for the user's body parts comprising a conversion diagnostic system unit for converting.

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