CN201205281Y - Physiology multi-parameter remote monitoring system based on B/S structure - Google Patents

Abstract

The utility model relates to a multi-physiological parameter remote monitoring system based on a B/S structure, which belongs to the field of physiological parameter remote monitoring. The monitoring system comprises a multi-physiological parameter collector, a customer-end PC, an Internet network and a hospital server. The multi-physiological parameter collector is connected with the customer-end PC, and the customer-end PC is connected with the Internet network and the hospital server. In the system, a TCP/IP protocol and multi-thread based technology is adopted, the central monitoring system is extended from a hospital to a house or a community, and a multi-thread concurrent server mode serves as the software at the hospital server end. The integration of an Active X technology with a B/S architecture embeds an Active X control into a Web page, so that the serial port can be read through a browser and data can be sent to the server end. The system is convenient for the deployment and maintenance of the software at the customer end, and provides a novel solution for the popularization and networking of medical instruments.

Description

Physiological multi-parameter remote monitoring system based on the B/S structure

Technical field

This utility model relates to a kind of physiological multi-parameter remote monitoring system based on B/S (browser/server) structure, belongs to physiological parameter long distance monitoring field.

Background technology

The important physical parameter has electrocardio, blood pressure, body temperature, blood oxygen saturation, respiratory wave etc. clinically, the monitoring of these physiological parameters has extremely important clinical meaning with detection to chronic and old people's the health and the control of cardiovascular disease, particularly these physiological parameters are guarded for a long time, can understand the variation tendency of the health status of human body, grasp the influence of some diseases human body.The multi-physiological-parameter remote monitoring system can make the patient obtain the same service of hospital in community or family, and is significant to the medical treatment and the health care level that improve China's different medical unit.

Along with popularizing rapidly of the Internet, nearly all medical institutions and increasing family can both be connected to higher speed on the Internet, various new, more the access way of high bandwidth constantly enters daily life, required expense also reduces gradually, and this provides better infrastructural support for long distance monitoring.

Existing remote monitoring system adopts Client to carry out data communication mostly, and whole system mainly is made up of client computer and software, transmission network and monitoring central server three parts.Client computer is usually located at family, community, finishes the functions such as collection, simple data processing and data transmission of patient physiological data.Client computer can adopt PC, special portable formula monitor, PDA equipment collections such as (Personal DigitalAssistant personal digital assistants) to send physiological signal.Client device is by Internet, and is wireless, and transmission mediums such as PSTN (Public Switch Telephone Network PSTN) or satellite send data.Server generally is high performance PC, work station or the server that is positioned at the monitoring center.The function of central station mainly is storage and analyzing and processing data, and the essential information of leading subscriber is looked back and to the management of monitoring end archives and service recorder, intelligent diagnostics etc. data with existing.

At present this remote monitoring system client based on Client uploads onto the server the physiological parameter of gathering, and the doctor downloads physiological parameter from server again and diagnoses, and can not carry out real-time monitoring to client's physiologic information.And all corresponding software to be installed usually in client, the maintenance upgrade cost is higher.

The utility model content

The purpose of this utility model has been to overcome the above-mentioned defective of existing monitor system, and a kind of physiological multi-parameter remote monitoring system based on the B/S structure is provided.The client software deployment maintenance is convenient in this system, for Medical Instruments universalness and networking provide new solution.

To achieve these goals, this utility model has been taked following technical scheme.Include the hospital server of multi-parameters sampling device, RS232 serial ports, client PC, Internet net and operation monitoring software based on the physiological multi-parameter remote monitoring system of B/S structure.Wherein: the multi-parameters sampling device links to each other with the client PC by the RS232 serial ports, and the client PC links to each other by the hospital server of Internet net with operation monitoring software.

Described multi-physiological-parameter harvester can be gathered electrocardio, systolic pressure, diastolic pressure, blood oxygen saturation, body temperature parameter or data.

Native system adopts based on ICP/IP protocol and multithreading, realizes the multichannel real-time monitoring of physiological parameter.Central monitoring system has been extended to family or community from hospital internal, and hospital server end software adopts the multi-thread concurrent server mode; The ActiveX technology combines with the B/S framework, ActiveX control is embedded in the Web page goes, and making can read and write serial port by browser, to server end transmission data.Its concrete monitoring method is as follows:

1) after hospital server is opened, constantly monitors the connection request of client PC;

2) client PC open any browser, whether detect has program updates; If have, download and install automatically; Connect the multi-parameters sampling device then and realize the multi-parameter monitoring function; If will send data to hospital server, then input user name and password, send connection request;

3) hospital server is received connection request, to client PC transmit port number;

4) the client PC sends the physiological parameter data that the multi-parameters sampling device is gathered according to the port numbers of passing back;

5) hospital server receives physiological parameter data, and differentiates the physiological parameter type, electrocardio, respiratory wave, pulse oxygen concentration waveform is drawn out, and show heart rate, body temperature, the isoparametric numerical value of blood pressure; And, then report to the police if go beyond the scope with the contrast of the alarm limit of every physiological parameter and setting.

The internet data communication of this device core is based on browser/server (Browser/Server) pattern.The computer at monitoring center is in listening state at any time as server end, in case certain client sends connection request, then makes corresponding response.When accepting this connection, receive data and also draw.A server can connect with a plurality of clients simultaneously, realizes that just many are concentrated monitoring.

The product of B/S framework is obviously embodying more convenient characteristic.Concerning big a little some unit, the system manager makes little runs to and fro between hundreds of even thousands of computers if desired, efficient and workload are well imagined, but the software of B/S framework has only needed management server just, all clients are browser, do not need to do any maintenance.No matter user's scale has muchly, has how many branches can not increase the workload of any maintenance upgrade, and all operations only need be carried out at server.Based on the real time remote monitor system of B/S pattern, be convenient to the client software deployment maintenance, for Medical Instruments universalness and networking provide new solution.

Description of drawings

Fig. 1: based on the physiological multi-parameter remote monitoring system structure chart of B/S structure;

Fig. 2: hospital server end monitoring software module and flow chart;

Fig. 3: client-side program flow process;

Among the figure: 1, multi-physiological-parameter harvester, 2, the RS232 serial ports, 3, the client PC, 4, the Internet net, 5, the hospital server of operation monitoring software.

The specific embodiment

Physiological multi-parameter remote monitoring system based on the B/S structure of the present utility model as shown in Figure 1.Whole system is made of hospital server 5, Internet net 4, client PC 3, serial communication interface 2 and the multi-physiological-parameter harvester 1 of operation monitoring software.Multi-physiological-parameter harvester 1 links to each other with client PC 3 by RS232 serial ports 2.Client PC 3 is connected by the hospital server 5 of Internet net 4 with operation monitoring software again.The browser of client PC 3 is exactly the container of operation multi-parameter remote monitoring ActiveX control.

Hospital server end software adopts the concurrent server model of multithreading, as shown in Figure 2.Server is all created a sub-thread for each client who receives connects and is handled communication, and the number of sub-thread only is subjected to the restriction of system resource.After watcher thread was finished the reception connection and created the task of sub-thread, sub-thread process was communicated by letter with the concrete of client computer, and each sub-thread process process is relatively independent.During programming, because the function of server is not single network service, also to carry out such as processing such as man-machine interaction, waveform drafting, data analysis warnings, so be not in main thread, directly to monitor client computer to connect, be responsible for monitoring but in main thread, create an independent sub-thread, when receiving the connection of client computer, to create an independent sub-thread for it and handle, watcher thread continues to enter other connections of monitoring.

In server software, the P2P index server software of also integrated multi-parameter remote real-time monitoring system based on the P2P pattern.Its major function is that the online audio frequency and video of doctors and patients exchange doctor's real-time monitoring patient.It preserves all online member's tabulations, monitors remote client's request, and Query Database is also returned result for retrieval.Equally, the P2P index server also as a separate threads operation, takies port one 1000.

Subscriber information management also is one of functional module of server software.User profile is stored among SQLServer 2000 data bases.By subscriber information management function accessing database, can carry out operations such as interpolation, deletion, change user role.

11002 ports in the software of hospital server 5 in the selection dynamic port are as listening port.Behind the running software, just constantly intercept the connection request of client at 11002 ports.In case there is client-requested to send physiological data, server software will be created a new socket and be used for client communication therewith, and come this socket of initialization with a port numbers.Because the number of clients that server end connects changes, so the variation that the port that takies also will connect along with client and changing gives over to use next time so that no port discharged.When new user asked to send data, server program generated new port numbers and sends to this user.Create the sub-thread of new processing according to this port numbers then.

The physiological data that server end is received is directly from the serial ports incident of client PC 3.When the serial ports incident is triggered (being that data volume surpasses threshold value in the input block), data in the relief area are read into internal memory, client-side program judges whether to be in transmit status, if just call the transmission function data are directly sent to the hospital server end.The data buffer zone of serial ports is a Byte type-word joint number group, and what socket sent also is Byte type-word joint number group, and the operation that data transaction has just been saved in direct transmission has improved efficient.

Can from above-mentioned buffer data, select the data of representing every physiological parameter respectively according to agreement, if electrocardio, then draw out at the drawing panel of Main form, the Information on panel the right then shows from database querying individual information according to user name.

Go out electrocardiographic wave, respiratory wave and pulse oxygen volume waveform at hospital server 5 respectively with the different colours drafting; Data such as blood oxygen saturation, body temperature, blood pressure then show its numerical value on the right.We also are provided with alarm limit to 7 physiological parameters (heart rate, blood oxygen saturation, systolic pressure, diastolic pressure, tremulous pulse mean pressure, breathing rate, body temperature), can carry out speaker to the abnormal physiology parameter and report to the police.

Fig. 3 has illustrated the operational process of client PC 3 programs.After user's open any browser, in address field input Web address, monitoring center, browser will detect automatically whether local computer installs multi-parameter remote monitoring control or version is installed has or not renewal.If installation or version are too not old, will download automatically, and prompting is installed.Then just can unit operation.Input user name and password this moment and just can send data to the hospital server request.Hospital server software can generate a port numbers according to current connection state, and special-purpose work of this port receives the physiological data that this user sends, and port numbers passed back to the client PC 3 of the request of sending.After client received port numbers, the IP that obtains in conjunction with the URI address from hospital server 5 created a socket and is used to send physiological data again.Such data send, received communication has just been set up.

The ActiveX control that moves on the client PC browser is developed with C# language.The essence of C# exploitation COM or ActiveX assembly is the object .NET, by some encapsulation, is exposed to operating system then, allows other application program visit the .NET object as traditional COM mode.Because this object can only generate under the .NET environment, so use the client of this object that .NETFramewok must be installed.Still .NET control that in fact we develop.And the client-side program that is used for the multi-parameter remote monitoring must have interface and user interactions.So what need foundation is exactly a UserControl engineering.

At first we can create a unique GUID with the instrument Create GUID that VS2003 provides.The attribute that also needs variation, Register for COM Interop is set to true.After having finished program development, Visual Studio has just registered this assembly at the window registry the exterior and the interior.Can under .NET Category catalogue, view the assembly that has just compiled with VS2003 instrument OLE/COM Object Viewer.For ActiveX control, can also be during debugging with carrying actual interface and the implementation effect that uses of instrument ActiveXControl Test Container test.

The multi-parameter remote monitoring client software of present embodiment is based on the B/S framework, so ActiveX need download and install by the Web page.We have issued a Web webpage at the hospital server end, use html tag to embed the ActiveX control of making.Simultaneously, because multi-parameter remote monitoring control need send data to server end when operation, so also need to know the IP of server, we can obtain from the URI address of the current Web page.In the page, embed the JavaScript statement and just the URI address of the current Web page has been passed to an attribute of ActiveX control.If, in control, just can parse the IP address of server with following IPAddress.Parse function directly with the visit of IP address.If the use domain name access then can use the GetHostByName function of System.Net.Dns class to obtain the IP address of server by the DNS name resolution service.Use this IP address deinitialization socket then.

Situation when secure browser is set to middle rank, this is that the browser default security settings also is the most frequently used setting.Be provided with down at this, unmarked is that ActiveX control script safety and that do not have digital signature all is disabled.The Web page at issue Act iveX control has been embedded in the JavaScript script sentence, so must realize the IObjectSafty interface.

Also need at last to add digital signature, can buy the software code signing certificate to certification authority (as Verisign, GeoTrust etc.) application and come signature code to control.After obtaining digital certificate, can use the signcode instrument of Vi sual Studio SDK to come to add digital signature as code.

The electrocardiosignal that present embodiment produces with the MPS450 multiparameter simulator of FLUKE company is verified the accuracy of heart rate detection, and testing result sees Table 1, and heart rate detection is very accurate as can be known.By checking, no matter present embodiment still is the hospital server end in client, in the requirement that has all reached accuracy and real-time aspect the physiological data transmission.

Table 1 heart rate detection result

Sequence number	1	2	3	4	5	6	7	8	9	10	11	12	13	14
															Actual value	30	40	45	60	80	90	100	120	140	160	180	200	220	240
Testing result	30	40	45	60	80	90	100	120	141	160	181	200	222	240

Claims (1)

1, based on the physiological multi-parameter remote monitoring system of B/S structure, it is characterized in that: the hospital server (5) that includes multi-physiological-parameter harvester (1), RS232 serial ports (2), client PC (3), Internet net (4) and operation monitoring software; Wherein: multi-physiological-parameter harvester (1) links to each other with client PC (3) by serial communication interface (2), and client PC (3) links to each other by the hospital server (5) of Internet net (4) with operation monitoring software.

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