CN110880976A - On-site equipment entity verification certificate and system thereof - Google Patents
On-site equipment entity verification certificate and system thereof Download PDFInfo
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- CN110880976A CN110880976A CN201811035529.1A CN201811035529A CN110880976A CN 110880976 A CN110880976 A CN 110880976A CN 201811035529 A CN201811035529 A CN 201811035529A CN 110880976 A CN110880976 A CN 110880976A
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- 238000012795 verification Methods 0.000 title claims abstract description 49
- 238000004891 communication Methods 0.000 claims abstract description 14
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 3
- 229910052744 lithium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- 238000012360 testing method Methods 0.000 abstract description 9
- 239000011159 matrix material Substances 0.000 description 15
- 238000010586 diagram Methods 0.000 description 12
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000004417 polycarbonate Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 102100038591 Endothelial cell-selective adhesion molecule Human genes 0.000 description 1
- 101000882622 Homo sapiens Endothelial cell-selective adhesion molecule Proteins 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- 238000000605 extraction Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000003709 image segmentation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 238000012800 visualization Methods 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
- H04L9/3263—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials involving certificates, e.g. public key certificate [PKC] or attribute certificate [AC]; Public key infrastructure [PKI] arrangements
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/37—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being movable elements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/55—Push-based network services
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/724—User interfaces specially adapted for cordless or mobile telephones
- H04M1/72403—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality
- H04M1/72406—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality by software upgrading or downloading
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
A field device entity certification certificate and a system thereof, the entity certification certificate comprising: a housing that is closed, non-removable; the circuit system is arranged in the shell and comprises a microprocessor, an encryption and decryption unit, a wireless communication unit, an electronic paper display screen and a nonvolatile memory; the electronic paper display screen is used for displaying display information of the certificate, and the display information comprises two-dimensional code information and direct-reading information; the content information of the entity verification certificate is encrypted and decrypted by the encryption and decryption unit; the non-volatile memory is used for storing the content information of the entity certificate in the form of encrypted data. The invention can realize electronization, miniaturization and low power consumption, and can be widely applied to the verification management of a plurality of field devices including various test devices.
Description
Technical Field
The invention relates to an entity certificate related to field equipment management, in particular to an entity certificate capable of changing the verification content in time and a system thereof.
Background
Certification management of field devices typically involves certification of certificates by entities associated with field device management. Such as: in a laboratory, field testing equipment such as an oscilloscope, a power meter, etc. is usually certified periodically, and a certification authority issues a new paper certificate to the unit where the field equipment to be tested is located, so as to cover/replace the old paper certificate. For another example: in power systems, field devices such as power meters, transformers, etc. are typically certified periodically, and new paper certificates are issued by a certification authority to the entity where the field device under test is located to cover/replace the old entity certificate. The existing mode of issuing the paper certificate is not intuitive, and is easy to lose and falsify.
Chinese patent CN206863798U discloses a substation equipment state visualization system based on the internet of things, which includes a two-dimensional code generation terminal, a two-dimensional code tag generated by the two-dimensional code generation terminal, a two-dimensional code recognition mobile terminal, a cloud server and a PMS2.0 equipment management server. The two-dimension code labels are arranged on equipment to be patrolled and examined of each transformer substation, the two-dimension code identification mobile terminal reads information of the two-dimension code labels, the two-dimension code identification mobile terminal is remotely connected with the cloud server, and the PMS2.0 equipment management server is connected with the cloud server. The two-dimensional code generating device comprises a computer terminal and a two-dimensional code output device connected with the computer terminal, wherein the two-dimensional code output device is a display screen or a printer. It can be understood that the two-dimensional code label displayed through the display screen can be regarded as a virtual certificate, and the paper two-dimensional code label printed through the printer can be regarded as a paper certificate.
Chinese patent CN105280105B discloses a method and a module for generating an LED dot matrix two-dimensional code, where the module includes the following units: the two-dimension code generating unit is used for generating a rectangular two-dimension code according to equipment information input by a user, wherein the equipment information comprises position information, a brand, a model and performance parameters of equipment; the image segmentation unit is used for segmenting the generated two-dimensional code image into grids of N rows multiplied by M columns, wherein N is the number of LEDs contained in each column of the rectangular LED dot matrix, and M is the number of LEDs contained in each row of the LED dot matrix; the gray value extraction unit is used for extracting the gray value of the image in each grid and generating an NxM gray value matrix according to all the gray values; the instruction generating unit is used for generating an NxM instruction matrix according to the gray value matrix, and elements in the instruction matrix correspond to elements in the gray value matrix one to one; when the gray value is greater than 200, the element instruction in the corresponding instruction matrix is 1, and when the gray value is less than 50, the element in the corresponding instruction matrix is 0; the LED dot matrix control unit controls the LED dot matrix corresponding to the position information according to the instruction matrix, and elements in the instruction matrix correspond to LED meanings in the LED dot matrix; when the instruction is 0, the corresponding LED is lightened; when the instruction is 1, the corresponding LED is turned off. The values of N and M are large enough to ensure that the gray values of any two points in each cell are equal, i.e., the image in each cell is either black or white, rather than both black and white.
It is seen that in order to find a more convenient and reliable alternative to paper certificates, it is thought to provide special means to generate two-dimensional codes in the vicinity of field devices to form virtual certificates. However, the conventional special devices capable of generating the two-dimensional code have the problems of complex structure, large volume, large power consumption and the like, and improvement is really needed.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide a field device entity verification certificate and a system thereof, which can realize electronization, miniaturization and low power consumption, and can be widely applied to verification management of a plurality of field devices including various test devices.
The technical scheme adopted by the invention for solving the technical problem comprises the following steps: there is provided a field device entity certification certificate comprising: a housing that is closed, non-removable; the circuit system is arranged in the shell and comprises a microprocessor, an encryption and decryption unit, a wireless communication unit, an electronic paper display screen and a nonvolatile memory; the electronic paper display screen is used for displaying display information of the certificate, and the display information comprises two-dimensional code information and direct-reading information; the content information of the entity verification certificate is encrypted and decrypted by the encryption and decryption unit; the non-volatile memory is used for storing the content information of the entity certificate in the form of encrypted data.
The technical scheme adopted by the invention for solving the technical problem also comprises the following steps: there is provided a system for certifying a certificate by a field device entity, comprising: an entity certificate as described above, which is integrated with the field device being tested; the field verification equipment is used for verifying the detected field equipment; and a background server; the entity certification certificate, the field certification equipment and the background server form closed-loop management.
Compared with the prior art, the field equipment entity verification certificate and the system thereof can realize electronization, miniaturization and low power consumption of the field equipment entity verification certificate by adopting the closed and non-detachable shell, displaying two-dimensional code information and direct-reading information by adopting the electronic paper display screen and storing encrypted data by adopting the nonvolatile memory, and can be widely applied to verification management of a plurality of field equipment including various test equipment.
Drawings
Fig. 1 is a block diagram configuration illustration of an embodiment of a field device entity certificate of the present invention.
Fig. 2 is a block diagram structural illustration of another embodiment of a field device entity certificate of the present invention.
Fig. 3 is a schematic diagram of an embodiment of a field device entity certificate of the present invention.
Fig. 4 is a schematic block diagram of a system for certifying certificates for field device entities in accordance with the present invention.
Fig. 5 is a detailed block diagram structural illustration of the system for certification of a field device entity of the present invention.
FIG. 6 is a flow diagram illustrating one application of the system for certification of a field device entity of the present invention.
Detailed Description
The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings.
Referring to fig. 1, fig. 1 is a block diagram illustrating an embodiment of a field device entity certificate of the present invention. The present invention provides a field device entity verification certificate 10, which comprises: a housing 1 and a circuit system 2 mounted in the housing 1. The circuitry 2 further comprises: microprocessor 21, encryption and decryption unit 22, wireless communication unit 23, electronic paper display screen 24 and nonvolatile memory 25. The entity verification certificate 10 can be powered by an external power supply or a built-in power supply. The entity certificate 10 can display the set display information (also called overt data) at the time of power failure, and the content information (also called invisible data) in the form of encrypted data of the entity certificate 10 is stored in the nonvolatile memory 25, so that the content information of the certificate can be secured against falsification, and the encryption/decryption unit 22 can perform encryption/decryption processing on the content information.
For example, the microprocessor 21 is an ARM core microprocessor with a certain amount of non-volatile memory such as EEPROM for storing setting information (e.g., content information of certificate); in the present embodiment, the nonvolatile memory 25 is built in the microprocessor 21, and in other embodiments, the nonvolatile memory 25 may be independent from the microprocessor 21 and external to the microprocessor 21; the encryption and decryption unit 22 selects an ESAM encryption and decryption chip for performing encryption and decryption processing on related information (for example, content information of a certificate of authenticity); wireless communication unit 23 for carry out wireless communication with external equipment, the information of its and external equipment transmission is the ciphertext, and wireless communication's mode is various, can choose for use: an NFC near field wireless communication mode, a low power 433/470NHZ or 2.4GHZ wireless communication mode, a Bluetooth wireless communication mode and the like; and an electronic paper display screen 24 controlled by the microprocessor 21 for displaying the display information of the certificate, wherein the display information comprises two-dimensional code information (which can be directly read by a user only by means of a code scanning program) and direct-reading information (which can be directly read by the user).
Referring to fig. 2, fig. 2 is a block diagram of another embodiment of a field device entity certificate of the present invention. The present invention provides another field device entity verification certificate 10, which is different from the aforementioned entity verification certificate 10 shown in fig. 1 in that it further includes: and the built-in power supply unit 27 is used for supplying necessary working power to the functional circuits (namely the microprocessor 21, the encryption and decryption unit 22, the wireless communication unit 23, the electronic paper display screen 24 and the nonvolatile memory 25).
For example, the power supply unit 27 is composed of a battery 271, a power switch 272, and a power manager 273. For example, the battery 271 may be two button lithium batteries; the power switch 272 is a toggle switch; the power manager 273 selects a power management chip and converts the supply voltage of the battery 271 into a supply voltage required by the functional circuit.
It should be noted that the two-dimensional code in the information displayed on the electronic paper display screen 24 is not generated in the local microprocessor 21, but comes from an external device connected to the wireless communication unit 23. The information relating to the two-dimensional code, together with other information relating to the verification, may be stored in the nonvolatile memory 25, permanently stored, and rewritten as necessary until the next update. Similarly, the information displayed on the e-paper display screen 24 may remain unchanged until the next certification update. In conjunction with this remote updating of the verification information, power switch 272 has particular utility: the closed state is opened only when updating is needed; and is turned off at long intervals. This mode of operation facilitates low power consumption by the entire field device entity to certify the certificate 10.
Referring to fig. 3, fig. 3 is a schematic diagram of the configuration of the certification certificate of the field device entity according to the present invention. In the field device entity certification 10 of the present invention, the housing 1 is formed of a bottom shell 11 and a top cover 12 that are fitted to each other.
Specifically, the bottom case 11 may be made of aluminum with an oxidized surface, and the top cover 12 may be made of PC (Polycarbonate) with a window. The bottom shell 11 is provided with a hanging lug 115, which is convenient for carrying and installing the field equipment entity verification certificate 10; the side of the bottom case 11 is provided with an opening for installing the aforementioned power switch 272; the window in the top cover 12 corresponds to the electronic paper display screen 24 described above. The edge portion of the top cover 12 is combined with the housing 11 and the electronic paper display screen 24 into a sealed whole through a dispenser. This arrangement ensures that the entity certificate 10 is enclosed and non-removable, well meeting the needs of the application.
It will be appreciated that, depending on the needs of the actual application scenario, the field device entity certification authority 10 may employ the aforementioned hangers 115 to connect with the corresponding field devices via mounting members such as ropes, screws, etc.; it is also possible to provide double-sided adhesive on the bottom outer side of the housing 11, which is connected to the corresponding field device by means of adhesive.
Referring to fig. 4, fig. 4 is a schematic block diagram of a system for certifying certificates for field device entities according to the present invention. The present invention provides a system 100 for verifying a certificate by a field device entity, comprising: a field device entity certification certificate 10, a field certification device 20, and a backend server 30. It is understood that the system 100 can also include a mobile phone 50 with two-dimension code recognition function. The field verification device 20 is a special handheld device, such as: the electric energy meter field calibrator can realize wireless communication with the field device entity verification certificate 10 by means of a wireless channel 70, and can realize mobile communication with the background server 30 by means of the mobile network 60. The mobile phone 50 can capture the display information on the electronic paper display screen 24 by means of scanning and reading of the light 80, convert the two-dimensional code information into information which can be directly read, and display the information on the screen of the mobile phone 50 for the user to directly read. This arrangement enables closed loop management of the entity certification certificate 10, the field certification equipment 20 and the backend server 30.
Referring to fig. 5, fig. 5 is a detailed block diagram structural illustration of the system for certifying certificates of a field device entity of the present invention. In conjunction with fig. 4, the backend server 30 further includes: an information platform 301, a data center 302 and a secure access unit 303. It is to be understood that the information platform 301 is composed of a computing device and software running on the computing device for maintaining and managing the field device entity certification certificates 10 associated with the field devices 200 under test; the data center 302 is composed of a computing device and software running on the computing device for maintaining and managing user information associated with the field device 200 under test (i.e., information on the unit in which the field device 200 under test is located).
Referring to fig. 6, fig. 6 is a flow diagram illustrating one application of the system for certification of a field device entity of the present invention. The application flow of the system 100 for certification of a field device entity of the present invention generally includes the steps of:
601. the background server pushes a business work order to the on-site verification personnel; it can be understood that the work order can be sent to the field verification equipment carried by the field verification personnel or sent to the mobile phone carried by the field verification personnel;
603. starting the on-site verification equipment by on-site verification personnel; it can be understood that the field verification equipment has a set functional module, which is sufficient for performing necessary verification on the equipment to be detected to obtain corresponding verification information (i.e. verification result);
605. the field verification equipment reads the relevant information of the detected field equipment, compares whether the work orders are matched or not, if so, completes the work order relevant tasks, stores the verification data into a field equipment entity verification certificate combined with the detected field equipment, and updates the two-dimensional code of the field equipment entity verification certificate;
607. the field verification equipment pushes the verification data to a background server;
609. and scanning and reading the two-dimensional code of the verification certificate of the field equipment entity by using the mobile phone APP of the detected unit where the field equipment is located, so that the current electronic certificate information can be obtained.
It will be appreciated that step 609 has no chronological dependency on the completion of the preceding steps. In other words, the user can read the field device entity verification certificate 10 at any time by using the mobile phone running the set APP to obtain the direct-reading information of the corresponding electronic certificate.
It is worth mentioning that the secure access unit 303 is disposed at the background server 30, the corresponding security unit is disposed in the field verification device 20 to encrypt the information related to the field device entity verification certificate 10, and the corresponding encryption/decryption unit 22 is disposed in the field device entity verification certificate 10 to implement the ciphertext communication with the field verification device 20, which is beneficial to ensure the authenticity, reliability and difficult tampering of the field device entity verification certificate 10.
Compared with the prior art, the field equipment entity verification certificate and the system thereof can realize electronization, miniaturization and low power consumption of the field equipment entity verification certificate 10 by adopting the closed and non-detachable shell 1, displaying two-dimensional code information and direct-reading information by adopting the electronic paper display screen 24 and storing encrypted data by adopting the nonvolatile memory 25, and can be widely applied to verification management of a plurality of field equipment including various test equipment.
It should be understood that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same, and those skilled in the art can modify the technical solutions described in the above embodiments, or make equivalent substitutions for some technical features; and such modifications and substitutions are intended to be included within the scope of the appended claims.
Claims (8)
1. A field device entity certification certificate, comprising: a housing that is closed, non-removable; the circuit system is arranged in the shell and comprises a microprocessor, an encryption and decryption unit, a wireless communication unit, an electronic paper display screen and a nonvolatile memory; the electronic paper display screen is used for displaying display information of the certificate, and the display information comprises two-dimensional code information and direct-reading information; the content information of the entity verification certificate is encrypted and decrypted by the encryption and decryption unit; the non-volatile memory is used for storing the content information of the entity certificate in the form of encrypted data.
2. The certification authority of claim 1, wherein the housing is formed by a bottom shell and a top cover which are engaged with each other, the bottom shell is made of surface-oxidized aluminum, and the top cover is made of PC with a window.
3. The field device entity certificate of claim 2, wherein the edge portion of the cover is integrated into a sealed unit with the housing and the e-paper display.
4. The field device entity certification certificate of claim 1, wherein the non-volatile memory is embedded within the microprocessor.
5. The field device entity certificate of any of claims 1-4, wherein the circuitry further comprises a power unit comprising a lithium button cell and a power manager cooperating with the lithium button cell.
6. The field device entity certificate and system thereof as claimed in claim 5, wherein the power unit further comprises a power switch for switching on/off the power supply of the power unit, the power switch being turned on only when the entity certificate needs to be updated.
7. A system for certifying a certificate by a field device entity, comprising: the entity certificate of any of claims 1 to 6, in combination with a detected field device; the field verification equipment is used for verifying the detected field equipment; and a background server; the entity certification certificate, the field certification equipment and the background server form closed-loop management.
8. The system of claim 7, wherein the backend server comprises an information platform and a data center, the information platform is composed of a computing device and software running on the computing device, and is used for maintaining and managing the field device entity certification certificate associated with the detected field device; the data center is comprised of computing devices and software running on the computing devices for maintaining and managing user information associated with the field devices being tested.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811035529.1A CN110880976A (en) | 2018-09-06 | 2018-09-06 | On-site equipment entity verification certificate and system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811035529.1A CN110880976A (en) | 2018-09-06 | 2018-09-06 | On-site equipment entity verification certificate and system thereof |
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| Publication Number | Publication Date |
|---|---|
| CN110880976A true CN110880976A (en) | 2020-03-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811035529.1A Pending CN110880976A (en) | 2018-09-06 | 2018-09-06 | On-site equipment entity verification certificate and system thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113543122A (en) * | 2021-05-31 | 2021-10-22 | 中国电力科学研究院有限公司 | Visual positioning electronic certificate and management system and management method thereof |
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