CN110413302A - A kind of method for remote updating and system of CT equipment - Google Patents
A kind of method for remote updating and system of CT equipment Download PDFInfo
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- CN110413302A CN110413302A CN201910735359.6A CN201910735359A CN110413302A CN 110413302 A CN110413302 A CN 110413302A CN 201910735359 A CN201910735359 A CN 201910735359A CN 110413302 A CN110413302 A CN 110413302A
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- 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
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- G16H40/67—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 remote operation
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Abstract
The present invention relates to a kind of method for remote updating of CT equipment, comprising the following steps: step S1:CT equipment receives the software upgrading message M1 of server or sends software upgrading request message M3 to server；Step S2:CT equipment sends software upgrading response message M2 to server or receives the software upgrading request-reply message M10 of server；The software upgrading configuration list message M4 of step S3:CT equipment reception server；Step S4:CT equipment sends software upgrading configuration list response message M5 to server；The software update data packet M6 of step S5:CT equipment reception server；Step S6:CT equipment sends software update data packet response message M7 to server；The software upgrading confirmation message M8 of step S7:CT equipment reception server；Step S8:CT equipment sends software upgrading result response message M9 to server.Compared with prior art, it can be achieved that the long-range update of CT equipment.
Description
Technical field
The present invention relates to medical imaging CT equipment fields, a kind of method for remote updating more particularly, to CT equipment and are
System.
Background technique
With the development of society and advancement of technology, more and more CT equipments enter hospital.In order to meet safety,
Reliability, convenience and raising efficiency of operation, in the research and development of CT equipment, debugging, operation, maintenance process, software and configuration
The case where updating maintenance of file is with the following aspects is related:
(1) debugging of system.Repeatable programming is a big feature of embedded system, research and development, collection in CT control system
At, debugging the stage, it may be necessary to related frequency modifies to the software or configuration parameter of CT equipment.
(2) reparation of software.The software of CT equipment subsystems equipment has the defect that can not prevent completely, Er Qiexian
Complicated for CT equipment system function, the size of code of software is also bigger, and the number of loophole is also more, and the number for needing to repair also is got over
It is more.
(3) upgrading of software, as the personnel that CT equipment hospital uses increase, the upgrading of security legislation, to whole system
Operational efficiency and performance more stringent requirements are proposed, such as hospital bed and rack operation relationship change, it may be necessary to it is corresponding
Upgrading subsystems equipment software or configuration file, CT controls device software, generally requires and carry out certain number
It updates.
(4) plant maintenance, when CT equipment failure situation, it is fixed to complete failure to need to obtain corresponding log information
Position and reparation.
CT equipment includes CT control computer, and CT control computer is main and host computer is communicated, with control rack
Rotation, the size of Collimator slit, the movement of hospital bed, the unwrapping wire of bulb and data acquisition of DMS etc..In CT equipment,
Multiple subscriber devices can be configured, and are typically mounted at rack and hospital bed interior of shell.
CT equipment, which updates main mode, at present is, directly reaches scene by artificial, carries out to the board of each equipment
Software upgrading, when CT equipment or more subscriber device quantity, especially mill stand control equipment is installed in holster shell
When portion, cumbersome to the update of software time-consuming, operating efficiency is relatively low, updates the heavy workload of operator.
In addition, the main medium used when current software upgrading is buckle (cd-rom recorder), USB storage or by board
It is direct-connected with notebook PC, it is downloaded and is updated by FTP.When the board of single set equipment is more, such as the board of certain CT control equipment
Up to 20 pieces, operator need to carry a certain number of buckles or
USB updates board one by one, since the type and number of software and configuration file are more, and trivial operations, operator
Member is easy to obscure, omits, malfunctions, and leads to system cisco unity malfunction, or even cause safety accident.
Existing CT equipment software upgrading and maintenance scheme mainly have following deficiency:
1, existing update software mode, needs to dismantle corresponding board or shell.It is cumbersome, service or maintenance personnel
Heavy workload, the servicing time is long, often calculates maintenance man-hours according to day；
2, existing update software mode, generally requires on-site support, especially deployment product remote geographic location when, maintenance at
This height, separate unit CT maintenance cost reach thousands of members；
3, existing update software mode needs to manually check, verification upgrade file, is easy to appear fault, upgrading is caused to be lost
It loses, reliability is not high.
4, existing update software mode, software upgrading speed receive the limitation of more new medium, software upgrading low efficiency.
Summary of the invention
It is long-range it is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide a kind of CT equipment
Update method and system.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of method for remote updating of CT equipment, method includes the following steps:
Step S1:CT equipment receives the software upgrading message M1 of server or sends software upgrading request message to server
M3；
Step S2:CT equipment sends software upgrading response message M2 to server or receives the software upgrading request of server
Response message M10；
The software upgrading configuration list message M4 of step S3:CT equipment reception server；
Step S4:CT equipment sends software upgrading configuration list response message M5 to server；
The software update data packet M6 of step S5:CT equipment reception server；
Step S6:CT equipment sends software update data packet response message M7 to server；
The software upgrading confirmation message M8 of step S7:CT equipment reception server；
Step S8:CT equipment sends software upgrading result response message M9 to server；
Step S9:CT equipment is updated based on M6, if updating failure, executes old version fallback mechanism and file system
Independent partitions and switching and booting mechanism；If being updated successfully, the long-range update of CT equipment is completed.
The M4 and M5 includes configuration list number, the identification number of message and cyclic redundancy check code.
The M6 includes software identification, packet sequence number, the total packet number of data packet, data packet subpackage sequence number and circulation
Redundancy check code.
The M6 further includes sending length and data, and the M7 further includes receiving length and more new state.
This method includes that M7 response timeout mechanism, M6 transmission abnormality mechanism and M6 receive timeout mechanism.
The server realizes the long-range update of CT equipment by thread.
A kind of remote update system of CT equipment, the system realize the method for remote updating of the CT equipment, the system
Including server and CT equipment, the server and CT equipment simultaneously transmit the program of storage to CT equipment.
The server is separately connected producer computer and user's computer, and the producer computer or CT are set
Preparation, which is sent, updates request to server, and the update request Concurrency that user's computer receives server transmission send refusal or connects
By instruction to server.
It is connected between the server and CT equipment by DCS backbone communication network or cordless communication network.
The CT equipment includes CT control computer and subscriber device, and the CT control computer and server connect
It connects, the CT control computer and subscriber device are connected to the network by CAN communication.
Compared with prior art, the invention has the following advantages that
(1) remote upgrade updates software mode, it is only necessary to which network can be connected to, and not need to dismantle corresponding board or outer
Shell, easy to operate, one-touch installation reduce service or the workload of maintenance personnel, maintenance is simple, reduce the time significantly
Cost.
(2) remote upgrade updates software mode, does not need on-site support, it is only necessary to the computer for having platform that can network, so that it may
CT equipment is updated to realize.
(3) remote upgrade updates software mode, and system oneself checks the software of upgrading, verifies upgrade file, this
The mode of sample is not allowed error-prone, greatly improves the success rate of upgrading.
(4) upgrading mode is flexible, can be issued and be requested by producer computer, can also issued by CT equipment itself
Request, can be carried out by cloud service trans-city domain, transprovincially domain remote operation terminal carry out updating operation；It can apply to a variety of works
Make scene, strong applicability.
(5) by security message agreement transmission mechanism, the correctness, uniqueness, safety of upgrade file be ensure that, simultaneously
The fault manually carried out by the modes such as buckle, USB, FTP in operating process can be reduced, the reliability of updating operation is improved
With the working efficiency of updating operation.
Detailed description of the invention
Fig. 1 is that producer computer of the invention requests update message transmission figure；
Fig. 2 is that CT equipment of the invention requests update message transmission figure；
Fig. 3 is that CT equipment request of the invention updates flow chart；
Fig. 4 is that CT equipment of the invention remotely updates communication topology figure；
Fig. 5 is that CT of the invention controls computer hardware board card module block diagram；
Fig. 6 is " old version fallback mechanism " and " file system independent partitions and switching and booting mechanism " signal of the invention
Figure.
Specific embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.The present embodiment is with technical solution of the present invention
Premised on implemented, the detailed implementation method and specific operation process are given, but protection scope of the present invention is not limited to
Following embodiments.
Embodiment
4.1 long-range more new principles
Remote software update needs software upgrading client, server and transmission channel is common and transmission channel is common
It completes, client is CT equipment, and server connection producer computer and user's computer, server storage need to be sent to
CT equipment latest edition software program, server are communicated with CT equipment.
CT equipment includes CT control computer and subscriber device, and CT control computer is connect with server, and subsystem is set
Standby includes rack and bed motion controller etc., and CT equipment receives software package to be updated, and completes data check, and anti-
Feedback updates result information to server.Transmission channel is mainly DCS backbone communication network and wireless communication system.
Server and CT equipment establish communication channel by network communication, and the data packet for completing software to be updated is logical
Letter.
4.2 long-range update communication protocols
By the interaction of message between server and CT equipment, long-range update feature operation, server and CT equipment are completed
Between data communication protocol format such as table 1.
Data communication protocol between 1 server of table and CT equipment
Wherein, the algorithm in channel 1 can be CRC-32C, and multinomial 1EDC6F41, the algorithm in channel 2 can be CRC-32Q,
Multinomial is 814141AB.
In both cases, it needs to carry out remote software update:
Server is separately connected producer computer and user's computer.
(1) when CT equipment software or configuration parameter need to debug, upgrade, repairing, software is initiated by producer computer
To server, the update request Concurrency that user's computer receives server transmission send refusal or receiving for long-range more newer command
Instruction carries out software upgrading operation if receiving to server.
(2) CT equipment is unsatisfactory for correctness and integrity demands by verification discovery software, to clothes when starting initialization
Business device initiates software upgrading request, and the update request Concurrency that user's computer receives server transmission send refusal or receiving
Instruction carries out software upgrading operation if receiving to server.
Basic procedure is as depicted in figs. 1 and 2.
Data exception is likely to occur in communication process, it, can be to avoid because logical by the design of corresponding interacting message mechanism
Letter interruption frame losing, is inserted into, distorts caused software update data exception or update unsuccessful.Main description software upgrading is matched
Set inventory message (M4), software upgrading configuration list response message (M5), software update data packet (M6), software update data packet
How response message (M7), prevent the above abnormal conditions.
4.2.1M4 with M5 message semantic definition
Server sends M4 message, after CT equipment receives M4, can check the file in configuration list, if its
The size of ground file, version, MD5 check code are consistent with software to be updated not to be needed to update, and can save Internet resources.CT is set
It is standby according to practice examining as a result, set respective value for UpdateFlag, and send M5 message to server, M4 and M5 message knot
Structure such as table 2, wherein CfgInfo structure definition such as table 3.
2 M4 of table and M5 message structure
| Field name | Byte number | Annotation |
| CfgCount | 1 | Configuration list number, maximum number are 10 |
| CfgInfo | 80-800 | Message purpose mark number, unique definition in system |
| CRC | 4 | From CfgCount to CfgInfo cyclic redundancy check code |
The definition of 3 CfgInfo structure of table
4.2.2 M6 and M7 message semantic definition
M6 message and M7 message mainly solve the failures such as frame losing, data exception, communication disruption, time-out, M6 and M7 message knot
Structure such as table 4 and table 5.
4 M6 message structure of table
| Field name | Byte number | Annotation |
| CfgIndex | 1 | Configuration or software identification |
| SN | 4 | Packet sequence number |
| PkgCont | 4 | The total packet number of data packet |
| PkgSN | 4 | Data packet subpackage sequence number |
| CfgSize | 4 | The practical transmission length of file data |
| CfgData | 1-1000 | File data |
| CfgCRC | 16 | File CfgData cyclic redundancy check code |
| CRC | 4 | From CfgIndex to CfgCRC cyclic redundancy check code |
5 M7 message structure of table
Server file data to be sent carries out subpackage transmission according to 1K byte.Server is sending a bag data
After M6, CT equipment is waited to reply M7, carries out the confirmation for sending data.Server following situations carries out data re-transmitting:
(1) response time-out.If being not received by the M7 message of CT equipment in 2s, server retransmits upper packet number
According to until receiving corresponding M7 message
(2) data transmission exception.CT equipment receives data, but data exception, and it is 0 that RecvFlag, which is arranged, in CT equipment, and
M7 is replied to server.
(3) time-out is received, CT equipment has replied corresponding M7 message, but in 3s after receiving correct data
It is not received by next bag data of server transmission, it is 0 that RecvFlag, which is arranged, in CT equipment, and replys M7 to server.
It can accomplish basic breakpoint transmission function by the above M6 and M7, save Internet resources, improve transmission effect
Rate and software upgrading success rate.
4.3 remote softwares update server capability and realize
User's computer development has corresponding human interface software (HMI), the monitoring and control for system running state
System.
One server often connects multiple user's computers, can be communicated respectively with each CT equipment, such as
Complete remote software update, at the same server can also other servers carry out data interactions, such as cascaded, completed soft
The synchronized update of part, as shown in Figure 3.
The realization of upgrade step:
Producer computer can initiate upgrade request instruction to server, when user's computer allows this upgrading behaviour
When making, tell the server can upgrade now and start, and operator can need to upgrade by upgrading software control panel selection
Component, database by DCS backbone communication network or wireless communication system send data to CT control computer, CT control
Computer and other subscriber devices carry out transmission data by CAN bus, the process of the transmission loss of data, mistake in order to prevent
It wraps, communicate situations such as unstable, joined CRC check and retransmission mechanism is carried out to the incorrect packet of data, data transmission terminates,
CT controls computer and needs to carry out CRC check to entire file, and CRC passes through, file is saved, and needs after upgrading pair
System carries out reboot operation, the software after both executing upgrading.
The software of identical equipment, can quickly be distributed by the cascaded communication that computer is controlled by CT.
When CT equipment initiates software upgrading request, server can respond update request, complete software update data
Remote transmission.Server will create a more new thread, be used for remote software more new function, major function related to long-range update
Process such as Fig. 4.
The 4.4 long-range CT equipment functions that update are realized
In order to complete remote software more new function, need to design corresponding hardware device.CT controls computer hardware board
Module frame chart is as shown in Figure 5.
Corresponding functions of modules is described as follows:
1, primary processor ARM-IMX6 is the main control chip of CT control computer, is responsible for the logical process of each function.
2, Network Interface Module mainly completes the reception and transmission of network data, completes the network communication with server.
3, RAM is mainly that embedded software running provides memory headroom.
4, whether the main monitoring programme of watchdog module is operating abnormally, and is updating new procedures or configuration data is laggard
Row system reboot runs new procedures or new data.
5, timer mainly provides timer counter function, provides foundation for the time-out judgement during software upgrading.
6, EEPROM does not lose the storage equipment of information as power down, main to store software upgrading mark and Current software
Access partition information.
7, Flash A, FlashB store Software Mirroring and configuration file as storage equipment.
8, CAN bus is mainly responsible for as communication transmission module and carries out information exchange with other subscriber devices.
In practical renewal process, in fact it could happen that two kinds of fault conditions
(1) during software upgrading is, because software or hardware fault lead to that Software Mirroring or configuration is written to Flash
It when data, is abnormal, software upgrading is caused to fail.
(2) after software upgrading, the new software operation of System guides, but new software or new configuration parameter failure, it cannot be normal
Operation, or normal service processing function cannot be provided.
When both the above failure occurring during software upgrading, in order to not influence the availability and stabilization of whole system
Property, even if updating failure or software when reading and writing failure on Flash in remote software, system normally can also be guided and be transported
Row, guarantees the availability of whole system.For requirements above, two kinds of measures are proposed to guarantee the normal operation of system, i.e. " history
Version rollback mechanism " and " file system independent partitions and switching and booting mechanism ".Two kinds of mechanism operational processes are as shown in Figure 6.
(1) " old version fallback mechanism ": allow system to obtain the last software operated normally and configuration parameter, that is, return
It falls back on old version.
(2) " file system independent partitions and switching and booting mechanism ": application software is updated in order to prevent and causes System guides
The mirror image failure of program bootloader, and cause entire board that cannot normally start, using Flash A as boot Flash
(size 2M byte), i.e., independent bootstrap memory block.Flash B is mainly as system Flash (size 256M word
Section), be configured to two independent subregions " PA0 " and " PA1 " (each partition size 128M byte), for storage system software with
Configuration parameter file.
4.5 long-range update limitations and safety requirements
In remote software renewal process, software to be updated is stored in server, the integrality of software document and
Correctness needs server to take appropriate measures with process and guarantees, such as using corresponding configuration management tool and effectively
Software issues process, prevents wrong software or incomplete software upgrading to CT equipment.
In order to not influence normal operation and security of system, the reliability of whole system, the operation that remote software updates is answered
It should be operated in the case where business free time section or relevant device are shut down.Such as at night, CT equipment is no longer to disease
The period that people provides service carries out remote software update.And the process that remote software updates, mistake and the alarm of generation are believed
The operator of breath, CT operation monitoring center should handle and record in time
4.6 long-range more new capabilities and efficiency
Software tradition update mode and remote software update mode, contrast properties information such as table 6 and table 7.
6 operational control unit software upgrading performance of table
7 rack subscriber device software upgrading performance of table
In software tradition update mode, buckle burning, USB flash disk burning need to dismantle board and need special-purpose software burning work
Tool；The direct-connected downloading of FTP needs operator to carry notebook PC.In addition, the generally most of boards of CT equipment are all placed on rack
In, software upgrading operator needs to dismantle holster shell and expends more time and physical strength, under long-range update mode, Ke Yiyou
Operator updates each CT subscriber device software or configuration data using computer, server and communication network parallel,
And long-range update mode is then not necessarily to the above extras or operation, it, can conveniently, fastly as long as network communication is under normal circumstances
Speed completes software upgrading.
The invention has the following advantages that
1, remote upgrade procedure, can Communication Jamming or other exceptions, cause the data-bag lost of upgrade file, dislocation,
The problems such as content tampering, upgrade file is imperfect or incorrect, and upgrading is caused to fail.For being likely to occur number in communication process
According to exception, by the design of corresponding interacting message mechanism, can to avoid because of communication disruption, frame losing, be inserted into, distort caused by it is soft
Part updates data exception or updates unsuccessful；Simultaneously increase data check and affirmation mechanism, guarantee communication data uniqueness,
Correctness, safety.
2, when escalation process breaks down, because escalation process does not terminate successfully, cause to be upgraded the original file quilt of equipment
It destroys, causes it that cannot be again introduced into upgrading process or operation of reworking, for this problem, devise version protection and return
Mechanism is moved back, even if guaranteeing to upgrade successfully, system in case of system halt state will not be entered, can also enable a system to continue to run or again
It is new to carry out updating operation.
Claims (10)
1. a kind of method for remote updating of CT equipment, which is characterized in that method includes the following steps:
Step S1:CT equipment receives the software upgrading message M1 of server or sends software upgrading request message M3 to server；
Step S2:CT equipment sends software upgrading response message M2 to server or receives the software upgrading request-reply of server
Message M10；
The software upgrading configuration list message M4 of step S3:CT equipment reception server；
Step S4:CT equipment sends software upgrading configuration list response message M5 to server；
The software update data packet M6 of step S5:CT equipment reception server；
Step S6:CT equipment sends software update data packet response message M7 to server；
The software upgrading confirmation message M8 of step S7:CT equipment reception server；
Step S8:CT equipment sends software upgrading result response message M9 to server；
Step S9:CT equipment is updated based on M6, if updating failure, executes old version fallback mechanism and file system is independent
Subregion and switching and booting mechanism；If being updated successfully, the long-range update of CT equipment is completed.
2. a kind of method for remote updating of CT equipment according to claim 1, which is characterized in that the M4 and M5 include
Configuration list number, the identification number of message and cyclic redundancy check code.
3. a kind of method for remote updating of CT equipment according to claim 1, which is characterized in that the M6 includes software
The total packet number of mark, packet sequence number, data packet, data packet subpackage sequence number and cyclic redundancy check code.
4. a kind of method for remote updating of CT equipment according to claim 3, which is characterized in that the M6 further includes hair
Length and data are sent, the M7 further includes receiving length and more new state.
5. a kind of method for remote updating of CT equipment according to claim 1, which is characterized in that this method includes M7 response
Timeout mechanism, M6 transmission abnormality mechanism and M6 receive timeout mechanism.
6. a kind of method for remote updating of CT equipment according to claim 1, which is characterized in that the server passes through
The long-range update of thread realization CT equipment.
7. a kind of remote update system of CT equipment, which is characterized in that the system realizes that any CT of claim 1-6 is set
Standby method for remote updating, the system include server and CT equipment, and the server connect with CT equipment and transmits storage
Program is to CT equipment.
8. a kind of remote update system of CT equipment according to claim 7, which is characterized in that the server difference
Producer computer and user's computer are connected, the producer computer or CT equipment transmission update request to server,
The update request Concurrency that user's computer receives server transmission send refusal or receives instruction to server.
9. a kind of remote update system of CT equipment according to claim 7, which is characterized in that the server and CT
It is connected between equipment by DCS backbone communication network or cordless communication network.
10. a kind of remote update system of CT equipment according to claim 7, which is characterized in that the CT equipment packet
CT control computer and subscriber device are included, the CT control computer is connect with server, the CT control computer and son
System equipment is connected to the network by CAN communication.
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| CN201910735359.6A CN110413302A (en) | 2019-08-09 | 2019-08-09 | A kind of method for remote updating and system of CT equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111399915A (en) * | 2019-12-27 | 2020-07-10 | 中国核动力研究设计院 | Main control guiding system and method applied to nuclear power plant safety level DCS |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111399915A (en) * | 2019-12-27 | 2020-07-10 | 中国核动力研究设计院 | Main control guiding system and method applied to nuclear power plant safety level DCS |
| CN111399915B (en) * | 2019-12-27 | 2022-03-22 | 中核控制系统工程有限公司 | Main control guiding system and method applied to nuclear power plant safety level DCS |
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Application publication date: 20191105 |