CN106485072B - A kind of control system for Medical Devices - Google Patents
A kind of control system for Medical Devices Download PDFInfo
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- CN106485072B CN106485072B CN201610882397.0A CN201610882397A CN106485072B CN 106485072 B CN106485072 B CN 106485072B CN 201610882397 A CN201610882397 A CN 201610882397A CN 106485072 B CN106485072 B CN 106485072B
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- G—PHYSICS
- G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
- G16H—HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
- G16H40/00—ICT specially adapted for the management or administration of healthcare resources or facilities; ICT specially adapted for the management or operation of medical equipment or devices
- G16H40/60—ICT specially adapted for the management or administration of healthcare resources or facilities; ICT specially adapted for the management or operation of medical equipment or devices for the operation of medical equipment or devices
- G16H40/63—ICT specially adapted for the management or administration of healthcare resources or facilities; ICT specially adapted for the management or operation of medical equipment or devices for the operation of medical equipment or devices for local operation
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- Biomedical Technology (AREA)
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- General Business, Economics & Management (AREA)
- Epidemiology (AREA)
- General Health & Medical Sciences (AREA)
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Abstract
The present invention provides a kind of control systems for Medical Devices, including control centre and multiple medical modules groups, each medical modules group is connect by CAN bus with the control centre, each medical modules group includes the medical modules of multiple parallel connections, and data volume of each medical modules in each medical modules group within the unit time is different.Beneficial effects of the present invention are：The electric connection line of each medical modules is eliminated, only communication connection need to can be completed with the unified connection of the CAN bus of control centre, and the traffic rate of medical modules plug and pull has been significantly increased.
Description
Technical field
The present invention relates to field of medical device, and in particular to a kind of control system for Medical Devices.
Background technique
In the Medical Devices of the relevant technologies, the practice of external required medical modules is generallyd use.For example, when patient monitor needs
When blood oxygen detection module, then blood oxygen detection module is connected to the control system of patient monitor with its electric connection line.And work as Anesthesia machine
When needing anesthetic gases module, then anesthetic gases module is connected to the control system of Anesthesia machine with its electric connection line.Thus, this
Kind way will cause following problems：The cabinet internal wiring of Medical Devices is mixed and disorderly, and it is poor to communicate among each other shield effectiveness；Plug and pull
The speed of response is low；Communication between each medical modules and control system is complicated；Different equipment suppliers sets in progress equipment
When meter, using different interfaces, the special purpose interface that each medical modules have unique and position fixed in the controls,
When design, need by considering to distinguish different interfaces, to prevent maloperation from collecting the signal of mistake.And it is right
In electrocardio-data collection module, since the data volume acquired in its unit time is big, in transmission data procedures, there is system not
Stable situation.
Summary of the invention
To solve the above problems, the present invention is intended to provide a kind of control system for Medical Devices.
The purpose of the present invention is realized using following technical scheme：
A kind of control system for Medical Devices, including control centre and multiple medical modules groups, each medical modules
Group is connect by CAN bus with the control centre, and each medical modules group includes the medical modules of multiple parallel connections, and each doctor
It is different to treat data volume of each medical modules in module group within the unit time.
Beneficial effects of the present invention are：The electric connection line of each medical modules is eliminated, it only need to be with the CAN bus of control centre
Communication connection can be completed in unified connection, and the traffic rate of medical modules plug and pull has been significantly increased.
Detailed description of the invention
The present invention will be further described with reference to the accompanying drawings, but the embodiment in attached drawing is not constituted to any limit of the invention
System, for those of ordinary skill in the art, without creative efforts, can also obtain according to the following drawings
Other attached drawings.
Structure connection diagram Fig. 1 of the invention；
Fig. 2 is the structural schematic diagram of fault detection system of the present invention.
Appended drawing reference：
Control centre 1, medical modules group 2, CAN bus 3, fault detection system 4, medical modules 21, data acquisition module
41, hardware control module 42, assessment of failure module 43, alarm display module 44, fault location module 45, fault type determine mould
Block 46, information logging modle 47.
Specific embodiment
In conjunction with following application scenarios, the invention will be further described.
Referring to Fig. 1, Fig. 2, a kind of control system for Medical Devices of one embodiment of this application scene, including control
Center 1 processed and multiple medical modules groups 2, each medical modules group 2 is connect by CAN bus 3 with the control centre 1, each
Medical modules group 2 includes the medical modules 21 of multiple parallel connections, and each medical modules 21 in each medical modules group 2 are in unit
Data volume in time is different.
Preferably, in multiple CAN bus 3, each CAN bus 3 has different traffic rates.
Preferably, the medical modules group 2 includes that the medical modules that the data of transmission are blood pressure data are with transmission data
The medical modules of gas concentration data.
The above embodiment of the present invention eliminates the electric connection line of each medical modules 21, only need to be with the CAN bus of control centre 1
Communication connection can be completed in 3 unified connections, and the traffic rate of 21 plug and pull of medical modules has been significantly increased.
Preferably, the control system for Medical Devices is additionally provided with the fault detection system for detection system failure
System 4, the fault detection system 4 includes data acquisition module 41, hardware control module 42, assessment of failure module 43, alarming shows
Show module 44, fault location module 45 and fault type determining module 46, the hardware control module 42 and data acquisition module
41 and assessment of failure module 43 connect, hardware control module 42 controls control system described in multiple sensor real-time monitorings, and will
The data of real-time monitoring are transported to assessment of failure module 43, the alarm display module 44 and assessment of failure mould by acquisition module
Block 43, fault type determining module 46 connect, and show malfunction, when receiving the alarm signal of the output of assessment of failure module 43
It is alarmed and shows fault type；The 45 connecting fault evaluation module 43 of fault location module and fault type determining module
46, it is analyzed and processed by the information issued to assessment of failure module 43 with positioning failure sensor and passes location information
Give fault type determining module 46.
This preferred embodiment constructs the module architectures of fault detection system 4.
Preferably, the data acquisition module 41 includes sequentially connected data capture unit and data amending unit；Institute
It states data capture unit to carry out using wireless sensor network, under normal circumstances, only small part sensor node is in work
State, carry out data acquisition, data collection cycle 1s, most of sensor node in a dormant state, when assessment of failure mould
When block exports alarm signal, in running order sensor node sends to sensor node in a dormant state and wakes up letter
Breath, sensor node in a dormant state enters working condition, while data collection cycle shorten to 0.5s；The data are repaired
Positive unit influences sensor acquisition data bring under non-standard condition for correcting, and introduces correction factor T0For the normal temperature of working sensor, H0It is wet for the standard of working sensor
Degree, wherein T is environment temperature when sensor acquires data, and H is ambient humidity when sensor acquires data.
Data correction unit is arranged in this preferred embodiment, and sensor can obtain more accurately observation data.
Preferably, the assessment of failure module 43 includes：
(1) residual signals generation unit, for come design error failure fault detection observer and obtaining need according to Gee system method
The residual signals of detection system, failure definition fault detection observer are：
The calculation formula of residual signals with fault message is：
Herein,
Wherein, xmThe state vector of expression system,Expression state xmEstimation,Expression system output vector is estimated
Meter,For secondary status, CmIndicate the residual signals with fault message, ZmFor system mode error, GmIndicate failure, YmFor
Unknown external Bounded Perturbations vector, KmTo control input vector, a2i、a1i、b1i、c1iFor according to the customized suitable dimension of system
Matrix, d2iFor according to the matrix of the customized sequency spectrum of system, Ui、ViFor the design parameter of the fault-detecting-observer；
(2) assessment of failure unit, for judging whether D.C. magnetic biasing shielding system breaks down, failure definition valuation functions
For：
Preferably, m0For initial evolution time, n is limited evolution time section；If P (Cm)>0, the assessment of failure mould
Block exports alarm signal, if P (Cm)≤0, the assessment of failure module 43 export normal signal.
The fault detection accuracy of the fault detection system 4 of this preferred embodiment setting is high, speed is fast.
Preferably, the alarm display module 44 includes sequentially connected alarm and LED display, is commented when receiving failure
The alarm signal alarm device for estimating the output of module 43 is alarmed, at this point, LED display is according to fault type determining module 46
Output signal shows fault type；When the normal signal alarm device for receiving the output of assessment of failure module 43 does not work, LED is shown
Screen display " 00 ".
The alarm display module 44 of this preferred embodiment setting, simple structure are easy to implement.
Preferably, the fault location module 45 comprising sequentially connected sub- observer establish unit, decoupling unit and
Positioning unit, the sub- observer establish module and establish a series of parallel drops for each sensor for participating in feedback signal
Robust Observers are tieed up, each dimensionality reduction Robust Observers correspond to the output of a sensor；The decoupling unit utilizes dimensionality reduction Shandong
Stick observer decouples the output signal of sensor；The positioning unit is used for positioning failure sensor, if shared k ginseng
With the sensor of feedback signal, ranging formula is：
Wherein, γ indicates fault sensor, CiIndicate output signal and drop that the sensor of feedback signal is participated in by i-th
The residual error deviation that the estimated value of dimension Robust Observers is compared.
The fault location module 45 of this preferred embodiment setting utilizes the dimensionality reduction Shandong for the output design of each sensor
Stick observer carries out failure and quickly detects and position, and location efficiency is high.
Preferably, the fault detection system 4 further includes information logging modle 47, and the information logging modle 47 includes letter
Screening unit and information memory cell are ceased, the information memory cell is a 64GB solid state hard disk, position of failure point and failure classes
Type enters information memory cell by information sifting unit and stores, and has saved memory space, is convenient for follow-up work personnel
Carry out troubleshooting.The effect of information sifting unit is that position of failure point and fault type information is selected to carry out from all information
Record.
Finally it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than the present invention is protected
The limitation of range is protected, although explaining in detail referring to preferred embodiment to the present invention, those skilled in the art are answered
Work as understanding, it can be with modification or equivalent replacement of the technical solution of the present invention are made, without departing from the reality of technical solution of the present invention
Matter and range.
Claims (3)
1. a kind of control system for Medical Devices, characterized in that including control centre and multiple medical modules groups, each doctor
Module group to be treated to connect by CAN bus with the control centre, each medical modules group includes the medical modules of multiple parallel connections, and
Data volume of each medical modules within the unit time in each medical modules group is different；It is additionally provided with for detection system event
The fault detection system of barrier, the fault detection system include data acquisition module, hardware control module, assessment of failure module,
Alarm display module, fault location module and fault type determining module, the hardware control module and data acquisition module and
The connection of assessment of failure module, hardware control module control control system described in multiple sensor real-time monitorings, and by real-time monitoring
Data be transported to assessment of failure module, the alarm display module is connect with assessment of failure module, fault type determining module,
Display malfunction is alarmed when receiving the alarm signal of assessment of failure module output and shows fault type；The event
Hinder locating module connecting fault evaluation module and fault type determining module, by information that assessment of failure module is issued into
Row analysis processing with positioning failure sensor and sends location information to fault type determining module；The assessment of failure module
Including：
(1) residual signals generation unit, for according to Gee system method come design error failure fault detection observer and obtain need to detect
The residual signals of system；
(2) assessment of failure unit, for judging whether D.C. magnetic biasing shielding system breaks down, failure definition valuation functions are：
In formula, CmIndicate the residual signals with fault message, KmTo control input vector, YmFor unknown external Bounded Perturbations to
Amount, GmIndicate fault-signal, m0For initial evolution time, n is limited evolution time section, and SUP indicates capping function；If P
(Cm)>0, the assessment of failure module exports alarm signal, if P (Cm)≤0, the assessment of failure module export normal signal.
2. a kind of control system for Medical Devices according to claim 1, characterized in that in multiple CAN bus, often
One CAN bus has different traffic rates.
3. a kind of control system for Medical Devices according to claim 2, characterized in that the medical modules group packet
Include transmission data be blood pressure data medical modules and transmission data be gas concentration data medical modules.
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