CN101673333B - Metering support method of measurement software module of virtual instrument - Google Patents
Metering support method of measurement software module of virtual instrument Download PDFInfo
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- CN101673333B CN101673333B CN200910092173XA CN200910092173A CN101673333B CN 101673333 B CN101673333 B CN 101673333B CN 200910092173X A CN200910092173X A CN 200910092173XA CN 200910092173 A CN200910092173 A CN 200910092173A CN 101673333 B CN101673333 B CN 101673333B
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Abstract
The invention discloses a metering support method of a measurement software module of a virtual instrument, comprising the steps: inserting an external interface device, and loading the measurement software module of the virtual instrument; reading an integrity check code of the external interface device, comparing the check code with a check code of the measurement software module, and judging the integrity of a software; acquiring the user certificate of the measurement software module, reading traceable digital certificate of the external interface device and a user authority list, and authenticating the identity of a user; and prompting to upgrade the software. The method can greatly inhibit illegal replacement, alteration and circumvention for the measurement software module of the virtual instrument, avoid the unauthorized change being easily carried out on metering parameters, obviously improve the integrity, the reliability and the safety of the measurement software of the virtual instrument, thus being capable of solving the metering problems of an existing virtual instrument and a software thereof, and finally leading the measurement of the virtual instrument to be normalized.
Description
Technical field
The present invention relates to a kind of metering support method of measurement software module of virtual instrument, this method is applied to the virtual instrument measuring field.
Background technology
Along with computer hardware technique and virtual instrument application and development, in recent years virtual instrument technique has been launched comparatively extensive studies.At measurement and control area; Software features such as the reliability of international metering such as OIML and WELMEC mechanism concern measurement and control instrument and integrity protection; Suggestion based on measurement and control instrument software protection demand, guard method, reliability assurance and software quality evaluation and test has been proposed; Covered the virtual instrument type, but studied also seldom to integrity protection technology and validity evaluation and test that virtual instrument is used.
Authentication has simultaneously obtained more deep research in areas of information technology; And propose and realize based on user password, digital certificate, biological characteristic; Even multifactorial authenticating user identification, but the combined with virtual instrument measures, uses the many-sided authentication of copyright not cause concern as yet.
Although software quality is very crucial to the correct and effective work of measurement and control instrument; Do not strictly regulate but still have at present with the technical construction virtual instrument in different ways; Because software quality assurance is a systems engineering; Relate to various aspects such as software design, exploitation, use, management, maintenance and evaluation, but the software system of virtual that distribution is used is a black box, is difficult to its reliability is tested and assessed.Check on though NI etc. have carried out strict test and quality to the measurement control of himself and third party issue with assembly, but do not obtain people's attention as yet to the reliability assurance of virtual instrument software and the method for operating research evaluated and tested.
The reliable computing technology that develops rapidly in recent years can be used for protecting the integrality of computer hardware platforms and bottom software platform, uses it for the virtual instrument integrity protection, can solve the crucial application software integrality protection problem of measuring.
At present, the standard of virtual instrument measuring aspect not as yet is though the relevant criterion such as " measurement instrument software test and appraisal guide technical manuals " of OIML TC 5/SC 2, WELMEC 7.2 and China national State Administration of Quality Supervision, Inspection and Quarantine covers virtual instrument measuring to some extent.But believe that the measurement standard of virtual instrument can put on the agenda very soon.
In sum, it is extremely urgent to seek an effective metering support method of measurement software module of virtual instrument.
Summary of the invention
For solving the problem that said method exists, the invention provides a kind of measurement software module of virtual instrument metering method.
The present invention realizes through following technical scheme:
A kind of measurement software module of virtual instrument metering method involved in the present invention comprises:
Insert external interface equipment, load measurement software module of virtual instrument;
Read the external interface device completeness check code, and this check code and Survey Software module check code are compared, judge the integrality of software;
Obtain the user certificate of Survey Software module, read external interface device trace to the source digital certificate and user right table, and the user is carried out authentication;
The prompting software upgrading.
The beneficial effect of technical scheme provided by the invention is:
Can guarantee integrality, the reliability of software through Survey Software module completeness check code, prevent that software is by illegal or be not intended to revise.Can protect the function of measuring of Survey Software module through user's authentication.Through the method control module is upgraded, measurement of virtual instrument software is possessed meet up-to-date metering standard, obtain up-to-date function of measuring and repair software vulnerability.Can solve the measurement problem of current virtual instrument and software thereof through this method, finally make the measurement of virtual instrument standardization.
Description of drawings
Fig. 1 is the metering support method of measurement software module of virtual instrument particular flow sheet;
Fig. 2 is the concrete realization flow figure of measurement software module of virtual instrument integrity verification;
Fig. 3 is the concrete realization flow figure of measurement software module of virtual instrument authentication;
Fig. 4 is the concrete realization flow figure of measurement software module of virtual instrument updating and management.
Embodiment
For making the object of the invention, technical scheme and advantage clearer, will combine accompanying drawing that embodiment of the present invention is done to describe in detail further below:
Present embodiment provides a kind of metering support method of measurement software module of virtual instrument; This method utilizes measure such as the integrity verification, subscriber authentication, reliability protection of software for measurement of virtual instrument software metering support to be provided, and makes the measurement of virtual instrument software specificationsization.
Referring to Fig. 1, this method mainly may further comprise the steps:
Step 101 is inserted external interface equipment, loads measurement software module of virtual instrument executable file formats such as () .exe.
Step 102 is through reading the external interface device completeness check code; Calculate and the check code comparison that obtains through Hash with the Survey Software module, judge software integrity, meet like the two comparison and then write back Operation Log to external interface device; Program continues operation, otherwise withdraws from after then providing warning.
Step 103 is through reading external interface device trace to the source digital certificate and user right table; The user is carried out authentication; Part continues operation if the calibrating user then gets into the software calibrating; If the measurement user then gets into software measurement and partly measures the continuation operation, write back the authentification of user daily record simultaneously to external interface device, if the disabled user withdraws from after then providing warning.
Step 104 provides the software upgrading prompting, and the user then begins upgrading if agree upgrading, otherwise begins calibrating or measuring operation.
Referring to Fig. 2, measurement software module of virtual instrument integrity verification concrete steps comprise:
If the first software of submitting to, then execution in step 202, otherwise this software executing step 203.
The proof test value of step 202 software for calculation, and carry out verification through the module in the external memory module, execution in step 205 then.
The daily customary checking of step 203 pair software.
If be not complementary, program out of service; If be complementary, then finish integrity verification.
Said external interface device should be the special standard USB interface equipment of metrological service, and software is executable file formats such as .exe in the metering system, preferably possesses test report that relevant department issues, meets the software specifications about virtual test system; Metering system needs a supporting safety storing external interface device, and this equipment has loaded the software integrity identifying code that metrological service is authorized, and prevents that software illegally perhaps is not intended to revise.Integrity verification information is returned external interface device with the daily record stored in form.
Referring to Fig. 3, measurement software module of virtual instrument authentication concrete steps comprise:
If authentication is passed through, then authentication finishes; Not, authentification failure, then working procedure withdraws from.
Software is executable file formats such as .exe in the metering system, preferably possesses test report that relevant department issues, meets the software specifications about virtual test system; Metering system needs a supporting safety storing external interface device, and this equipment has loaded the digital certificate of tracing to the source, and comprises the digital signature of metrological service to metering system software; The digital certificate that metrological service issues to the user, and be stored in the user authentication device, in order to the proof user identity; Authentication information returns external interface device with the daily record stored in form.
Referring to Fig. 4, measurement software module of virtual instrument updating and management concrete steps comprise:
If its software module is the method control module, its authenticity verification passes through, and then execution in step 403, if the verifying software module is illegal control module, authentication failed then withdraws from.
The integrity verification of step 403 pair software;
If integrity verification passes through, then execution in step 404, and authentication failed then withdraws from.
Software is executable file formats such as .exe in the metering system, preferably possesses test report that relevant department issues, meets the software specifications about virtual test system; Metering system has fixing not scalable legal system related software, and this part should possess necessary being used for and satisfy the checking function of following the tracks of upgrade requirement; Shouldn't verify after the upgrading, but upgrade information must return external interface device with the daily record stored in form.And upgrading must the user clearly be agreed and can carry out.
Above-mentioned integrity verification, authentication, software upgrading are carried out in order, and it is out of service that any one procedure failure Survey Software will provide the warning back; Illegal control module can not be upgraded, and the legal system correlation module has upgrade function, and said software module escalation process is fixedly carrying out under the tracking of legal system correlation module, and its tracking module itself is not scalable; Separate between method control module and the illegal control module, illegal control module can not directly be visited the legal system data, must communicate by letter with the software correlation module through clear and definite software interface, obtains the legal system related data through the latter.
The above; Be merely the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, any technician who is familiar with the present technique field is in the technical scope that the present invention discloses; The variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claim.
Claims (5)
1. a metering support method of measurement software module of virtual instrument is characterized in that, this method mainly comprises:
A inserts external interface device, loads measurement software module of virtual instrument;
B judges whether the executable file in the system software is the first software of submitting to; If, the proof test value of software for calculation then, and carry out verification through the module in the external memory module; To the daily customary checking of software; Start software integrity checking interface; Read the external interface device completeness check code, and this check code and Survey Software module check code are compared, judge the integrality of software; If comparison then writes back Operation Log to external interface device when being consistent, its program continues to move, otherwise gives a warning and withdraw from;
C obtains the user certificate of Survey Software module, reads external interface device trace to the source digital certificate and user right table, and the user is carried out authentication;
D software upgrading prompting;
The step of said software upgrading prompting comprises:
Step 401 software module is loaded;
Step 402 judges that through reading external interface device trace to the source digital certificate and user right table whether software module is the method control module, promptly carries out authenticity verification to it;
If its software module is the method control module, its authenticity verification passes through, and then execution in step 403, if the verifying software module is illegal control module, authentication failed then withdraws from;
The integrity verification of step 403 pair software;
If integrity verification passes through, then execution in step 404, if authentication failed then withdraws from;
Step 404 is installed new module;
Step 405 activates the new module of installing, and then software upgrading finishes.
2. metering support method of measurement software module of virtual instrument according to claim 1; It is characterized in that; Wherein said A comprises: said external interface device is a USB interface equipment, and USB interface equipment has mainly been stored calibrating parameters, Survey Software integrity check value, user right table, trace to the source digital certificate and User operation log file; The Survey Software module of said loading is the exe executable file format, and executable file format can be converted into 16 system file layouts.
3. metering support method of measurement software module of virtual instrument according to claim 1; It is characterized in that; Said step C specifically comprises: said the user is carried out authentication after, continue operation if the calibrating user then gets into software calibrating part, then get into software measurement and partly continue operation if measure the user; Write back the authentification of user daily record simultaneously to external interface device, if the disabled user withdraws from after then providing warning.
4. metering support method of measurement software module of virtual instrument according to claim 1 is characterized in that, said step D specifically comprises: after the said software upgrading prompting, and the selection that can whether upgrade; After the user selects updating operation, transmit new Survey Software module, to cover old edition Survey Software module through the HTTP/FTP mode; The user continues the executable operations program after the said software upgrading, and writes back operating process to external interface device with the form of daily record; Said user withdraws from when selecting the software upgrading operation, and then software begins calibrating or carries out measuring operation.
5. metering support method of measurement software module of virtual instrument according to claim 4 is characterized in that, said software upgrade process is carried out under the fixation control module is followed the tracks of, and its tracking module itself is not scalable.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200910092173XA CN101673333B (en) | 2009-09-04 | 2009-09-04 | Metering support method of measurement software module of virtual instrument |
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| CN200910092173XA CN101673333B (en) | 2009-09-04 | 2009-09-04 | Metering support method of measurement software module of virtual instrument |
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| CN101673333A CN101673333A (en) | 2010-03-17 |
| CN101673333B true CN101673333B (en) | 2012-07-04 |
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