KR101063998B1 - Emergency medical system based on OSSi service platform - Google Patents

Abstract

The present invention relates to an emergency medical system that utilizes medical information of a medical information system by bundling OSGi bundles of service modules and HL7 middleware in a medical information system and an emergency medical system based on an OSGi service platform.

Emergency medical system according to the present invention includes a bio-signal measuring unit wearable on the body of the patient, a web-camera for photographing the state of the patient, and wireless communication means, the bio-signal measuring unit based on ZlgBee (ZlgBee) The biosignals measured from the biosignal measurement unit are implemented through the HL7 middleware bundle on the OSGi service platform so that the biosignals collected through the emergency medical system can be utilized in the medical information system. HL7 based message data is provided to the medical information system.

OSGi, HL7 Messages, Emergency Medical, Biosignal, Zigbee, WiBro

Description

EMERGENCY MEDICAL SYSTEM BASED ON OSGI SERVICE PLATFORM}

The present invention relates to an emergency medical system based on the OSGi service platform, and relates to an emergency medical system utilizing OSGi bundles of service modules and HL7 middleware in an emergency medical system to utilize medical information of a medical information system. Specifically, the HL7 middleware module of the emergency medical system takes the HL7 standard medical information transmission structure of the biosensor data measured in the emergency rescue vehicle and the past patient care information of the medical information system, and based on accurate patient information in the emergency rescue process. The present invention relates to a technique for enabling first aid.

In addition, emergency services based on OSGi, a service platform, and HL7 message delivery middleware are provided to enable emergency medical services through immediate response of medical services and control of functional modules according to changes in sensor data collected from emergency medical systems. Bundle modularity

Conventional medical information systems based on HL7 are known. The medical information system based on HL7 has been studied as the key to the flexibility of information sharing among heterogeneous applications with an emphasis on the standardization of data through HL7.

However, since HL7 is for medical information at one time point, it is very difficult to extract or utilize biometric data obtained from actual patients. In order to solve these problems, the research proceeds by proposing a database for biosignal data, identifying patient data using a data storage device such as an RFID tag, and collecting data from a patient through a specific sensor device. It became.

However, these studies are also based on the use of stored data, so it is not possible to propose the convergence of medical information and sensor devices that collect the actual data required for emergency medical systems.

In addition, in the middleware for HL7 standardization, they design individual data acquisition sensors and propose to use them in medical information systems through the middleware for HL7 standardization of the sensor data. Data can be utilized, and the sensor device is also a uniform device for collecting information, and it is impossible to respond mechanically to the change of the patient's condition required in the emergency medical system. In addition, there was a problem that it is not easy to expand to various hospitals and home services.

In addition, in the emergency medical system in the USN environment, most of the emergency medical systems that have been studied by the development of wireless network technology have been researched to secure the ease of measurement in the event of an emergency by integrating the existing biometric system into the wireless network environment. It was.

However, in the case of an emergency, the medical information system about the patient's medical history and condition could not be understood because the interface with the medical information system was not established.

In addition, since most of the equipment in the system is manufactured in a fixed form in a transport vehicle, there is an inconvenience of exchanging equipment in a hospital after transport.

Therefore, the present invention supports a USN (Ubiquitous Sensor Network) suitable for emergency medical systems, and operate in a ZlgBee-based wireless sensor network to facilitate the wearing of medical devices for measuring biometric information of chronic patients. The aim is to provide an emergency medical system that can be implemented.

An object of the present invention is to build a ZigBee-based wireless sensor network capable of multi-hop and routing for the mobility and scalability of the emergency medical system.

In addition, the present invention, in connection with the medical information sharing support of the emergency medical system through the HL7 standardization, in accordance with the request to convert to a message suitable for HL7 standardization in order to interlock with the existing medical information system for the rapid response of the emergency situation, It aims to support the HL7 middleware designed to support the biomedical data collected through existing patient information and emergency medical systems.

In addition, in connection with the device network support through the OSGi gateway, the emergency medical system aims to provide data collection through sensors, monitoring to check the situation, and devices for responding to the emergency.

Therefore, it requires connection and interoperability of various devices. The 0SGi service platform for device convergence supports unrestricted connection of any protocol device by constructing a communication bundle supporting a specific protocol connection. This provides the efficiency of adding and changing devices, and provides interoperability between devices as the connected devices on one platform are managed together.

In addition, in order to facilitate reconfiguration and expansion of various services, service information for medical information, emergency medical services, and various service modules to be added are integrated and operated within the OSGi framework in a standardized form called OSGi bundle. This can reduce development time and costs in changing the configuration of the device, changing the service or designing a new service.

In order to achieve the above object,

Emergency medical system based on the OSGi service platform capable of remote medical care in conjunction with a remotely located medical information system according to the present invention, a bio-signal measuring unit that can be worn on the body of the patient, a web-camera for photographing the state of the patient, And a wireless communication means, wherein the biosignal measuring unit is implemented to operate in a ZlgBee-based wireless network so that the biometric data collected through the emergency medical system can be utilized in a medical information system. The biosignal measured from the biosignal measuring unit is provided to the medical information system as HL7 based message data through the HL7 middleware bundle on the OSGi service platform.

The biosignal measuring unit may include a biosensor, a signal processor, and a ZigBee unit, wherein the biosensor is a SpO2 sensor, an electrocardiogram, a pulse wave, a blood pressure, a body temperature measuring sensor, and a sensor attached to a body of a patient.

The signal processor is a wearable biometric sensor based on a programmable system on chip (PSoC) having gain amplification, filtering, voltage offset, and analog digital converter (ADC) functions for the detected fine biosignals.

The Zigbee means is made to transmit the biological signal processed from the signal processor to the Zigbee network.

In addition, the HL7 middleware,

An event management unit for filtering only valid information of the transmitted sensor information data and delivering the data to be converted to the message generator;

A message generator for converting the information filtered by the event manager into a HL7 standard data format and an HTTP / XML message format to generate a standardized HL7 message,

A device information library unit for storing transmission data format information of the sensor and sharing data collected using the sensor with the medical information system;

An HL7 library unit for storing message information used in the HL7 v2.5 protocol, converting HL7 messages through the HL7 library, and sharing heterogeneous hospital information internally and externally; And

It further comprises a metadata registry for converting the shared medical information data to XML format using the schema proposed by the HL7-SGML / XML SIG and XML MetaData Registry (XMDR).

In addition to exchanging information in connection with existing medical information systems, in order to share and transmit medical information between hospitals and black hospitals, conversion to a message suitable for HL7 standardization is required. In addition, biometric data collection and utilization in the USN environment in the hospital, and the efficiency of the expansion of the application system by sharing data between different service modules is required.

In order to satisfy these requirements and the efficiency of expansion, the present invention is based on the OSGi service platform, the OSGi bundle of service modules and HL7 middleware in the medical information system and emergency medical system, and the emergency medical system based on the data of the medical information system. In this paper, we present the possibility of providing immediate medical service through the control of the device and the immediate response of the associated device according to the patient's condition.

According to the present invention, the following technical and economic industrial expectation effects are expected.

-Technical ramifications

Secure technology for real-time data sensing suitable for medical environment in USN environment. Secure technical foundation for standardization of wireless medical data.

Acquisition of HL7 middleware development technology for conversion to HL7 standardized message Acquisition of OSGi bundle modeling technology of service module and middleware. Securing technology for device control on various networks through expansion of home network Development of emergency medical system using medical information system.

Economic / industrial ripple effects

-Accumulation of technology establishment and development technology for HL7 middleware environment construction.

-Reduced redundant investment in system development costs through standardization through OSGI bundling of HL7 middleware.

-Reduction of development cost for system integration operation through the efficiency of adding and changing the system configuration of OSGi service platform.

-Industrial efficiency due to the possibility of integrating different hospital systems in use through OSGI bundling of service modules.

The present invention provides for the continuous collection and utilization of patient's medical information by interlocking with the medical information system operating in the existing hospital to improve the efficiency of emergency treatment in the rapid emergency situation identification and emergency transport step required in emergency medical care.

It also provides an integrated network emergency medical system that designs wearable medical data collection sensors and provides integrated operation of these sensor devices and various medical devices.

Based on the system construction technology in the present invention it can be provided to the application and scrutiny in the following direction.

-Use as an integrated emergency medical system by sharing information between existing emergency medical centers and each emergency medical institution

-Possible to develop various service and commercialization models through sharing medical information among existing hospitals

-Applicable to the development of wearable healthcare system by introducing PSOC technology

-Possible to use in emergency call and alarm system that requires integrated operation between sensor and device

-Use in ubiquitous cystel, which requires continuous information collection and data sharing with existing information

-Use in various network services that require interconnection of different network solutions and middleware

-Application in medical information exchange system between hospitals through standardization of medical information data

-Expansion of medical services operated in existing hospitals to emergency medical services

1 is a view schematically showing an example in which the emergency medical system according to the present invention is applied to an emergency rescue vehicle.

As shown in FIG. 1, the emergency medical system according to the present invention includes a web camera 11 installed in an emergency rescue vehicle, a wearable biosignal measuring device 12 worn on a patient's body, and communication means 13. ).

The web camera 11 installed in the vehicle and the signal from the biosignal measuring apparatus 12 are communicated through an emergency response vehicle gateway 10 via the communication means 13, and preferably a medical information system located remotely. Information will be sent to. In the medical information system, appropriate emergency medical treatment is performed through biometric signals transmitted from emergency vehicle.

Communication means include ZigBee, WiBro and wireless Ethernet. ZigBee, a wireless private network (WPAN) technology, is a private wireless network specification for 2.4GHz-based home automation and data featuring low power, low cost, and low speed, and has been standardized in IEEE 802.15.4.

According to the standard, Zigbee uses frequencies of 2.40 GHz, 915 MHz, and 868 MHz, and 250 kbps (16 channels in the 2.4 GHz ISM band) and 40 kbps / 20 kbps (10 channels in the 915 MHz band / 1 channel in the 868 MHz band) per frequency. ) Modem type is DSSS (Direct Secure Spread Spectrum) and transmits data at speed of 20 ~ 250kbps within 30m radius, and connects up to 255 devices to one wireless network, indoors and outdoors. A large scale wireless sensor network can be configured.

In addition, a Wibro (Wireless Broadband) method may be employed as a communication means, which is a kind of a wireless communication method that enables the Internet at a speed of 1 Mbps or more while moving the wireless communication method.

Since the WiBro wireless modem used in the WiBro wireless communication method can function as a wireless network server itself, it is possible for an external server to access an emergency vehicle and check data.

Next, any sensor attached to the patient's body may be used as long as it is a wearable signal measuring device capable of measuring SpO2, electrocardiogram, pulse wave, blood pressure, and body temperature. The signal measured from the wearable signal measuring device is provided to an external server through the communication device 13 (a WiBro modem or a Zigbee modem).

Programmable gain amplifiers and filters, ultra-low noise and low-noise signals to measure the full potential of a programmable system on chip (PSoC), such as design platform flexibility, short development time, simplified manufacturing processes, and reduced component count. The wearable biosensor is used by using analog digital converter (ADC) function with input leakage and voltage offset.

In addition, ZigBee or WiBro network can be used for radio signals (p02, ECG, pulse wave, blood pressure, body temperature, blood sugar) processed by PSoC using Radiopulse's MG2400 chip, which has RF, Base-band, MAC and MCU (8051 Core). Will be sent to.

2 is a diagram illustrating a schematic configuration of a wearable biosignal measuring apparatus.

As shown in FIG. 2, the biosignal measuring apparatus includes a biometric sensor 121, a signal processor 122, and an MCU & Zigbee module 123.

The biometric sensor 121 detects biosignals of various patients including SpO2, electrocardiogram, pulse wave, blood pressure, and body temperature, and the signal processor 122 performs processing suitable for transmission on the detected biosignals. Thereafter, the MCU & Zigbee module 123 transmits the processed biosignal to the outside through the gateway 10.

Next, the service module design of HL7 middleware and emergency medical system through OSGi bundling will be described.

To this end, in the present invention, a bundle for the service module of the emergency medical system is produced on the OSGi framework, HL7 messages of various biosignal measuring devices for interworking with the emergency medical system are defined, and the emergency provided from the bundled service module is provided. We make a bundle of HL7 middleware that converts the information of the medical system into the HL7 message defined above, and test the remote control of the emergency medical system through the OSGi service bundle control in the emergency server in the hospital.

HL7 is a standard for exchanging text-based medical information. When an event occurs, an HL7 message is generated and transmitted to other systems through a network. In addition, since the contents of the generated information can be transmitted in a message format irrespective of a system, an operating system, and a database, it is possible to efficiently store, retrieve, and transmit medical information while maintaining internal data structures of different information systems.

The middleware proposed by the present invention also applied the HL7 protocol for integration with various medical information systems, and converted to XML form using the schema proposed by HL7-SGML / XML SIG to solve the system environment and structural heterogeneity. It is designed to transmit.

3 is a configuration diagram of the middleware 20 for HL7 based message standardization proposed in the present invention.

First, as shown in FIG. 3, the event manager 210 filters only valid information of the transmitted sensor information data and transmits data to be converted to the message generator 20.

The device information library unit 221 stores transmission data format information of the sensor, and shares data collected using the sensor with the medical information system.

The HL7 library unit 222 stores message information used in the HL7 v2.5 protocol, converts the HL7 message through the HL7 library, and can share heterogeneous hospital information internally and externally.

The metadata registry unit 223 solves the system environment and structural heterogeneity by converting the shared medical information data into an XML form using the schema proposed by the HL7-SGML / XML SIG and the XML MetaData Registry (XMDR).

The message generator 230 converts the information filtered by the event manager 210 according to the HL7 standard data format and the HTTP / XML message format to deliver a standardized HL7 message through the network service module 224.

4 is a register registration structure diagram for defining a service bundle and performing a service operation in an OSGi service framework.

In FIG. 4, the service implementation unit 301 of the bundle defines a service function to be performed by the service bundle.

In addition, the service interface unit 302 defines a list of interfaces to be used in the bundle and attributes of the corresponding interface.

The bundle activator 303 may obtain the bundle context by defining the start and the end of the bundle in the bundle life cycle.

The bundle context unit 310 may register or obtain a service in the OSGi service framework 320 through a bundle context, and obtain information to be used. All service modules to be implemented in the following configurations are bundled into one service, share resources with other related bundles, and integrate through the interaction of service functions.

The present invention implements the HL7 middleware, emergency medical service bundles, biodata processing bundles necessary for the construction of an emergency medical system, and interoperates with OSGi existing bundles (various network bundles).

Figure 5 shows the operation in the OSGI service platform by OSGI bundling the service module, HL7 middleware in the emergency medical system. In the OSGi framework, bundles can provide data sharing with all component bundles as OSGi data types, and support device connectivity without restriction on communication protocols.

As such, in the medical information system based on the OSGi service platform, the OSGi framework defines package bundles such as connections, consoles, controls, and devices to increase the efficiency of overall device management, specification of device functions, and connection of multiple devices on the network. In addition, all services to be implemented through the OSGi framework are configured in the form of bundles, and each bundle can interoperate within the framework to connect different networks and devices. It has the advantage of easy system expansion because of the individuality of the change as well as the further changes in the bundles that make up the system.

The above description is merely illustrative of the technical idea of the present invention, and those skilled in the art to which the present invention pertains may make various modifications and changes without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are not for limiting the technical spirit of the present invention but for the description, and the scope of the technical idea of the present invention is not limited by these embodiments.

Therefore, the protection scope of the present invention should be interpreted by the claims below, and all technical ideas within the equivalent scope will be construed as being included in the scope of the present invention.

1 is a view showing an example of an emergency medical system according to the present invention.

2 is a view showing the configuration of a biosignal measuring apparatus according to the present invention.

3 is a schematic illustration of HL7 message middleware.

4 is a schematic diagram illustrating an OSGi bundle.

5 schematically illustrates bundle configuration and data flow.

Claims (3)

In the emergency medical system based on the OSGi service platform that enables remote medical care in conjunction with remotely located medical information system, The medical information system includes a bio-signal measuring unit wearable on the body of the patient, a web-camera for photographing the state of the patient, and the like, and wireless communication means. The biosignal measurement unit is implemented to operate in a ZlgBee-based wireless network, and the biosignal measured from the biosignal measurement unit may be used to enable biomedical data collected through the emergency medical system to be utilized in a medical information system. Is provided to the medical information system as HL7 based message data through the HL7 middleware bundle on the OSGi service platform, The HL7 middleware, An event management unit for filtering only valid information of the transmitted sensor information data and delivering the data to be converted to the message generator; A message generator for converting the information filtered by the event manager into a HL7 standard data format and an HTTP / XML message format to generate a standardized HL7 message, A device information library unit for storing transmission data format information of the sensor and sharing data collected using the sensor with the medical information system; An HL7 library unit for storing message information used in the HL7 v2.5 protocol, converting HL7 messages through the HL7 library, and sharing heterogeneous hospital information internally and externally; And Emergency medical system based on OSGi service platform, further comprising a metadata registry for converting shared medical information data into XML format using the schema proposed by HL7-SGML / XML SIG and XML MetaData Registry (XMDR). . The method of claim 1, The biological signal measuring unit, A biological sensor, a signal processor and a Zigbee means, The biometric sensor is a sensor attached to the body of the patient is SpO2, ECG, pulse wave, blood pressure, body temperature measuring sensor, The signal processor is a wearable biometric sensor of a programmable system on chip (PSoC) type having gain amplification, filtering, voltage offset, and analog digital converter (ADC) function for the detected microbial signal. The ZigBee means is an emergency medical system based on the OSGi service platform, characterized in that for transmitting the biological signal processed from the signal processor to the ZigBee network. delete

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