CN205389215U - PLC data acquisition and encryption and decryption system based on two net gapes - Google Patents
PLC data acquisition and encryption and decryption system based on two net gapes Download PDFInfo
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- CN205389215U CN205389215U CN201620080198.3U CN201620080198U CN205389215U CN 205389215 U CN205389215 U CN 205389215U CN 201620080198 U CN201620080198 U CN 201620080198U CN 205389215 U CN205389215 U CN 205389215U
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Abstract
The utility model provides a PLC data acquisition and encryption and decryption system based on two net gapes can ensure motor operating data's secure transmission. The system includes: with cryptographic module customized decryption module, host computer, two net gape data acquisition cryptographic module, PLC module and insert the motor of PLC module in pairs, wherein, two net gape data acquisition cryptographic module include: an encryption modul. The PLC module for acquire the operating data of motor, two net gape data acquisition cryptographic module are used for gathering motor operating data that the PLC module was obtained encrypts motor operating data through cryptographic module, simultaneously with reaching on the encrypted motor operating data the host computer, the host computer for receive encrypted motor operating data, and combine decryption module to decrypt and show encrypted motor operating data. The utility model is suitable for an industrial control system information security technology field.
Description
Technical field
This utility model relates to industrial control system field of information security technology, particularly relates to a kind of plc data collection based on double; two network interfaces and encrypting and deciphering system.
Background technology
In recent years, along with the productivity improves constantly, motor extensively should in many industrial circles such as metallurgy, automatization, machineries.In industrial control system (abbreviation industrial control system), motor operating state largely reflects system condition, once motor data is revealed, not only it is likely to result in control technique and technology is divulged a secret, even can provide approach for unique assailant, cause production or management system crash, bring serious economic loss.Therefore, for guaranteeing industrial control system safe and reliable operation, at utmost namely one of important measures stopping potential safety hazard ensure motor data transmission safety.
At present, the monitoring and the encrypting and deciphering system that are specifically designed for motor data are less, and the part that great majority application is regarded as in whole system takes safety measures, and seldom take special precautions measure in the transmission of motor to user side data.Along with industrial control system control integration, industrial control system manages system with tradition IT and the Internet couples increasingly tightr, and motor data transmission channel connection more objects, safety also faces increasing threat.But, most enterprises think that industrial control system motor safety puts into and are not inconsistent with income, maybe cannot obtain immediate effect, have ignored the importance of motor data safety in industrial control system, and therefore, we need badly and take responsible measures to guarantee motor data safe transmission.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of plc data collection based on double; two network interfaces and encrypting and deciphering system, to solve the problem transmission of motor service data not being taked special safe precaution measure existing for prior art.
For solving above-mentioned technical problem, this utility model embodiment provides a kind of plc data collection based on double; two network interfaces and encrypting and deciphering system, it is characterized in that, including: with the motor of deciphering module, host computer, double; two network interface data acquisition encrypting module, PLC module and access PLC module that encrypting module customizes in pairs, wherein, described pair of network interface data acquisition encrypting module includes: encrypting module；
Described PLC module, for obtaining the service data of motor；
Described pair of network interface data acquisition encrypting module, for gathering motor service data that described PLC module gets and by encrypting module, motor service data being encrypted, is uploaded to described host computer by the motor service data after encrypting simultaneously；
Described host computer, is used for the motor service data after receiving encryption, and in conjunction with deciphering module, the motor service data after encryption is decrypted and is shown.
Further, described deciphering module is USBKEY deciphering chip, and described USBKEY deciphering chip is communicated by USB communication protocol and described host computer；
Described host computer, for receiving the motor service data after encryption, and calls described USBKEY deciphering chip, described USBKEY deciphering chip the motor service data after encryption is decrypted, and the motor service data after deciphering is transferred to host computer shows.
Further, described host computer also includes: data base；
Described data base, is additionally operable to the motor service data after storage deciphering, and the motor service data after deciphering is supervised.
Further, described pair of network interface data acquisition encrypting module also includes: acquisition port, the acquisition port ethernet physical layer controller being connected with described acquisition port, the acquisition port data processing module being connected with described acquisition port ethernet physical layer controller, be connected with described acquisition port data processing module send mouth data processing module, the transmission mouth ethernet physical layer controller being connected with described transmission mouth data processing module, the transmission mouth that is connected with described transmission mouth ethernet physical layer controller；
Wherein, described transmission mouth data processing module is also attached with encrypting module.
Further, described acquisition port data processing module is communicated by serial ports with sending mouth data processing module, and wherein, described serial ports includes: SPI interface.
Further, described acquisition port and transmission mouth are RJ45 network interface.
Further, communicated by RMII interface between described acquisition port ethernet physical layer controller and acquisition port data processing module.
Further, communicated by RMII interface between described transmission mouth ethernet physical layer controller and transmission mouth data processing module.
Further, the quantity of described motor is at least 1；
Communicated by ICP/IP protocol between described PLC module and motor.
Further, described PLC module includes: master controller and motor drive converter, wherein, described master controller is connected with described pair of network interface data acquisition encrypting module, described motor drives the input of converter to be connected with described master controller, and described motor drives the outfan of converter to be connected with described motor；
Described master controller, for the motor service data got is transferred to described pair of network interface data acquisition encrypting module, is additionally operable to drive the operation of motor described in Frequency Converter Control by motor.
Having the beneficial effect that of technique scheme of the present utility model:
In such scheme, gather the motor service data that gets of PLC module by double; two network interface data acquisition encrypting modules and by encrypting module, motor service data be encrypted, motor service data after encryption is uploaded to described host computer simultaneously, in conjunction with deciphering module by host computer the motor service data after encryption is decrypted and shows, thus forming a complete motor service data secure transmission system.So, encryption is placed in motor service data end, deciphering is placed in user and uses the previous link of data, all the other stages all transmit with ciphertext, security protection is carried out, it is possible to effectively prevent the leakage of the attack from hacker or motor service data such that it is able to ensure the safety in transmitting procedure of the motor service data to greatest extent from data source header, reduce industrial control system risk, meet the demand for security of industrial control system；And host computer is capable of the real-time monitoring of motor service data, enhance industrial control system safety and real-time, additionally, based on the plc data collection of double; two network interfaces and encrypting and deciphering system for applicable object extensive, portable strong, thus effectively save cost.
Accompanying drawing explanation
The plc data collection based on double; two network interfaces that Fig. 1 provides for this utility model embodiment and the structural representation of encrypting and deciphering system；
The encryption chip circuit diagram that Fig. 2 provides for this utility model embodiment；
The data encryption schematic flow sheet that Fig. 3 provides for this utility model embodiment；
The host computer workflow schematic diagram that Fig. 4 provides for this utility model embodiment；
The plc data collection based on double; two network interfaces that Fig. 5 provides for this utility model embodiment and the structural representation two of encrypting and deciphering system；
The data acquisition flow schematic diagram that Fig. 6 provides for this utility model embodiment；
The data transmission stream journey schematic diagram that Fig. 7 provides for this utility model embodiment.
[main element symbol description]
1:USBKEY deciphering chip；
2: host computer；
3: double; two network interface data acquisition encrypting modules；
4:PLC module；
5: motor.
Detailed description of the invention
For making the technical problems to be solved in the utility model, technical scheme and advantage clearly, it is described in detail below in conjunction with the accompanying drawings and the specific embodiments.
This utility model is for the existing problem motor service data not transmitted and take special safe precaution measure, it is provided that a kind of plc data collection based on double; two network interfaces and encrypting and deciphering system.
It is illustrated in figure 1 a kind of plc data collection based on double; two network interfaces and encrypting and deciphering system that this utility model embodiment provides, including: the deciphering module customized in pairs with encrypting module is (preferably, described deciphering module is USBKEY deciphering chip 1), host computer 2, double; two network interface data acquisition encrypting module 3, PLC module 4 and access PLC module 4 motor 5, wherein, described pair of network interface data acquisition encrypting module 3 includes: encrypting module；
Described PLC module 4, for obtaining the service data of motor 5；
Described pair of network interface data acquisition encrypting module 3, for gathering the motor service data in described PLC module and by encrypting module, motor service data being encrypted, is uploaded to described host computer 2 by the motor service data after encryption simultaneously；
Described host computer 2, is used for the motor service data after receiving encryption, and in conjunction with deciphering module, the motor service data after encryption is decrypted and is shown.
The plc data collection based on double; two network interfaces described in this utility model embodiment and encrypting and deciphering system, gather the motor service data in PLC module by double; two network interface data acquisition encrypting modules and by encrypting module, motor service data be encrypted, motor service data after encryption is uploaded to described host computer simultaneously, in conjunction with deciphering module by host computer the motor service data after encryption is decrypted and shows, thus forming a complete motor service data secure transmission system.So, encryption is placed in motor service data end, deciphering is placed in user and uses the previous link of data, all the other stages all transmit with ciphertext, security protection is carried out, it is possible to effectively prevent the leakage of the attack from hacker or motor service data such that it is able to ensure the safety in transmitting procedure of the motor service data to greatest extent from data source header, reduce industrial control system risk, meet the demand for security of industrial control system；And host computer is capable of the real-time monitoring of motor service data, enhance industrial control system safety and real-time, additionally, based on the plc data collection of double; two network interfaces and encrypting and deciphering system for applicable object extensive, portable strong such that it is able to effectively save cost.
In this utility model embodiment, the quantity of described motor 5 is at least 1, described USBKEY deciphering chip 1 communicates with host computer 2, described host computer 2 communicates with double; two network interface data acquisition encrypting modules 3, described pair of network interface data acquisition module communicates with PLC module 4, and described PLC module 4 communicates with motor 5, wherein, described USBKEY deciphering chip 1 adopts USB communication protocol to communicate with described host computer 2, and all the other communications all adopt TCP/TP agreement.Gather in PLC module 4 motor service data by double; two network interface data acquisition encrypting modules 3 and encrypt, again the motor service data after encryption is uploaded to host computer 2, received by host computer 2 and add ciphertext data and be decrypted in conjunction with USBKEY deciphering chip 1, it is achieved solve ciphertext data and show and supervise.
Aforementioned based in the plc data collection of double; two network interfaces and the detailed description of the invention of encrypting and deciphering system, further, described host computer 2, for receiving the motor service data after encryption, and call described USBKEY deciphering chip 1, by described USBKEY deciphering chip 1, the motor service data after encryption is decrypted, and the motor service data after deciphering is transferred to host computer 2 shows.
In this utility model embodiment, being double; two network interface data acquisition encrypting modules 3 based on the plc data collection of double; two network interfaces and the core of encrypting and deciphering system, described pair of network interface data acquisition encrypting module 3 mainly realizes the collection of data, encryption and transmission.First the data encryption feature of double, two network interface data acquisition encrypting module 3 is introduced, encrypting module in double, two network interface data acquisition encrypting modules 3 is encryption chip, the circuit diagram of encryption chip is as shown in Figure 2, motor service data ciphering process is as shown in Figure 3, data encryption process includes: be first send to add density test data and to encryption chip and read encryption chip duty, if encryption chip is in busy condition, retransmits after time delay and add density test data, until encryption chip sends pre-encrypt data after being in idle condition, enter back into after being sent completely that delay procedure etc. is to be encrypted to be completed, read encryption chip duty subsequently, until encryption chip takes out ciphertext when being in idle condition, next round encryption is entered after slightly doing time delay, follow-up encryption adds density test data without sending.
As shown in Figure 4, described host computer 2 can call the USBKEY deciphering chip 1 encryption to receiving after motor service data be decrypted, again the motor service data after deciphering is transferred to host computer 2, undertaken resolving and showing in real time by agreement by host computer 2, according to the demand of user, the real time motor service data after deciphering can also be preserved to data base, wherein, described data base can be SQLSERVER data base；So, by adopting chip-scale manner of decryption, deciphering calculates and carries out in USBKEY deciphering chip 1, thus effectively having shared the calculating pressure of host computer 2, meets motor service data real-time and effectiveness requirement.
As shown in Figure 5, described host computer 2 also provides for the functions such as registration, login, the supervision of motor service data, motor real-time running state prompting, only after login authentication success user just can check deciphering after motor service data, motor real-time running state motor service data is supervised.
In this utility model embodiment, by being encrypted by the motor service data in the supporting AES PLC module 4 to collecting, and carry out safe transmission with ciphertext form, it is ensured that motor service data integrity and stability.Realize deciphering and the display of data at host computer 2 end by the USBKEY deciphering chip 1 customized in pairs with encryption chip, on host computer 2, realize data monitoring function simultaneously, provide for the safe transmission of motor service data and reliably monitor system efficiently.So, can be applied in industrial control system motor service data safe transmission based on the plc data collection of double; two network interfaces and encrypting and deciphering system, effectively reduce for the threat of motor service data transmission between PLC module 4 and host computer 2, it is ensured that industrial control system safe and reliable operation.
Aforementioned based in the plc data collection of double, two network interfaces and the detailed description of the invention of encrypting and deciphering system, further, described pair of network interface data acquisition encrypting module 3 also includes: acquisition port, the acquisition port ethernet physical layer controller being connected with described acquisition port, the acquisition port data processing module being connected with described acquisition port ethernet physical layer controller, the transmission mouth data processing module being connected with described acquisition port data processing module, the transmission mouth ethernet physical layer controller being connected with described transmission mouth data processing module, the transmission mouth being connected with described transmission mouth ethernet physical layer controller；
Wherein, described transmission mouth data processing module is also attached with encrypting module.
nullAs described in figures 1 and 5，In this utility model embodiment，ARM controller can be adopted to constitute described pair of network interface data acquisition encrypting module 3，Described pair of network interface data acquisition encrypting module 3 includes: acquisition port (data receiver port)、Acquisition port data processing module (can be ARM main control chip STM32F107)、Acquisition port ethernet physical layer controller (can be network controller chip DPM83848)、Send mouth (data sending terminal mouth)、Send mouth data processing module (can be ARM main control chip STM32F107)、Send mouth ethernet physical layer controller (can be network controller chip DPM83848)、Network transformer、Encryption chip、Serial ports、Dual redundant power interface、Power module、Display lamp is (wherein，Display lamp includes: power supply indicator、Data transmission state display lamp) and the part such as reset switch，Wherein，Acquisition port and transmission mouth are RJ45 network interface.
In this utility model embodiment, receiving terminal and transmitting terminal data place reason two panels STM32F107 chip realize, STM32F107 chip includes: the MAC interface of a 10M/100M, and MAC can support RMII and MII interface, chip DPM83848 also supports RMII and MII interface, for reducing circuit complexity, RMII interface between acquisition port ethernet physical layer controller and acquisition port data processing module, is adopted to communicate；It is also adopted by RMII interface between transmission mouth ethernet physical layer controller and transmission mouth data processing module to communicate；Transmitting terminal is furnished with encryption chip (external 4M crystal oscillator)；Receiving terminal and transmitting terminal all support ICP/IP protocol, wherein, and the external 50M crystal oscillator of network controller chip DPM83848, it is possible to achieve the partial function of CSMA/CD and the Carrier Sense Multiple Access technology with collision detection.
In this utility model embodiment, encryption chip is communicated with sending mouth data processing module by SPI mouth, and described acquisition port data processing module is communicated by serial ports with sending mouth data processing module, wherein, described serial ports includes: high speed SPI interface, as shown in Figure 5.
In this utility model embodiment, the motor service data run in PLC module 4 is acquired by described pair of network interface data acquisition encrypting module 3 by RJ45 network interface, and by the encryption chip in double, two network interface data acquisition encrypting modules 3 to sending the motor service data encryption that mouth data processing module sends over, and by the data after encryption by sending mouth ethernet physical layer controller transmission extremely described host computer 2, motor service data after being called the USBKEY deciphering chip 1 encryption to receiving by described host computer 2 is decrypted, motor service data after deciphering finally completes display on host computer 2, the operations such as management.
In this utility model embodiment, described pair of network interface data acquisition encrypting module 3 also provides for described acquisition port data processing module and downloads mouth (SWD mouth), described transmission mouth data processing module download mouth (SWD mouth), described encryption chip download mouth (USB port).
In this utility model embodiment, it is further described the data acquisition function of double; two network interface data acquisition encrypting module 3, as shown in Figure 6, first passes through and send two link instruction and set up and the linking of PLC module 4.Article 1, after link instruction sends, if the length returning packet is 27Byte, thinks and send successfully, otherwise it is assumed that send unsuccessfully.Send the 2nd article of link instruction, confirm that the method for success or not is identical with the 1st article.After link is set up, send the first motor service data acquisition instructions, judge whether completely according to returning packet, as the first motor service data completely then sends the second motor service data acquisition instructions and verifies the integrity of data, otherwise continue to send the first motor service data acquisition instructions until collecting effective motor service data.
In this utility model embodiment, it is illustrated in figure 7 data transmission stream journey schematic diagram, first network port initialization is carried out, such as IP address, port, hardware setting etc., then double; two network interface data acquisition encrypting modules 3 are linked by TCP three-way handshake Mechanism establishing with host computer 2, finally enter transmitting-receiving to select, after selection, complete follow-up transceiving data process.
Aforementioned based in the plc data collection of double; two network interfaces and the detailed description of the invention of encrypting and deciphering system, further, described PLC module 4 includes: master controller and motor drive converter, wherein, described master controller is connected with described pair of network interface data acquisition encrypting module 3, described motor drives the input of converter to be connected with described master controller, and described motor drives the outfan of converter to be connected with described motor 5；
Described master controller, for the motor service data got is transferred to described pair of network interface data acquisition encrypting module 3, is additionally operable to be driven the operation of the operation 5 of motor described in Frequency Converter Control by motor.
In this utility model embodiment, described PLC module 4, for motor 5 being controlled and read the service data of motor 5, motor 5 includes: code-disc；Motor 5 is by code-disc and analog quantity, digital quantity input and output feedback three phase alternating current motor parameter is to PLC module 4, described PLC module 4 includes: master controller and the motor being connected with described master controller drive converter, described master controller can be Siemens CPU315-2PN/DP, described motor drives converter can be Siemens S120, described CPU315-2PN/DP is connected with the acquisition port of double, two network interface data acquisition encrypting modules 3, described motor drives the outfan of converter to be connected with motor 5, motor 5 drives converter to form closed loop by installing code-disc feedback system and motor, guarantee that motor 5 controls reliable and stable.
In sum, by achieving the safe transmission of motor service data based on the plc data collection of double; two network interfaces and encrypting and deciphering system, not only ensure the real-time of motor service data, also ensure safety and effectiveness, for defensive attack and prevent information leakage significant.Based on the plc data collection of double; two network interfaces and encrypting and deciphering system from data acquisition to encryption after ciphertext send, arrive again and show for user's supervision after host computer 2 completes deciphering, constitute motor 5 data safe transmission system of complete set, thering is provided powerful guarantee for the safe transmission of motor 5 data in industrial control system (as crane gear controls system, rolling system etc.), also the stable operation for industrial control system escorts.
The above is preferred implementation of the present utility model; it should be pointed out that, for those skilled in the art, under the premise without departing from principle described in the utility model; can also making some improvements and modifications, these improvements and modifications also should be regarded as protection domain of the present utility model.
Claims (10)
1. the plc data collection based on double; two network interfaces and encrypting and deciphering system, it is characterized in that, including: with the motor of deciphering module, host computer, double; two network interface data acquisition encrypting module, PLC module and access PLC module that encrypting module customizes in pairs, wherein, described pair of network interface data acquisition encrypting module includes: encrypting module；
Described PLC module, for obtaining the service data of motor；
Described pair of network interface data acquisition encrypting module, for gathering motor service data that described PLC module gets and by encrypting module, motor service data being encrypted, is uploaded to described host computer by the motor service data after encrypting simultaneously；
Described host computer, is used for the motor service data after receiving encryption, and in conjunction with deciphering module, the motor service data after encryption is decrypted and is shown.
2. the plc data collection based on double; two network interfaces according to claim 1 and encrypting and deciphering system, it is characterised in that described deciphering module is USBKEY deciphering chip, described USBKEY deciphering chip is communicated by USB communication protocol and described host computer；
Described host computer, for receiving the motor service data after encryption, and calls described USBKEY deciphering chip, described USBKEY deciphering chip the motor service data after encryption is decrypted, and the motor service data after deciphering is transferred to host computer shows.
3. the plc data collection based on double; two network interfaces according to claim 1 and encrypting and deciphering system, it is characterised in that described host computer also includes: data base；
Described data base, is additionally operable to the motor service data after storage deciphering, and the motor service data after deciphering is supervised.
4. the plc data collection based on double, two network interfaces according to claim 1 and encrypting and deciphering system, it is characterized in that, described pair of network interface data acquisition encrypting module also includes: acquisition port, the acquisition port ethernet physical layer controller being connected with described acquisition port, the acquisition port data processing module being connected with described acquisition port ethernet physical layer controller, the transmission mouth data processing module being connected with described acquisition port data processing module, the transmission mouth ethernet physical layer controller being connected with described transmission mouth data processing module, the transmission mouth being connected with described transmission mouth ethernet physical layer controller；
Wherein, described transmission mouth data processing module is also attached with encrypting module.
5. the plc data collection based on double; two network interfaces according to claim 4 and encrypting and deciphering system, it is characterised in that described acquisition port data processing module is communicated by serial ports with sending mouth data processing module, and wherein, described serial ports includes: SPI interface.
6. the plc data collection based on double; two network interfaces according to claim 4 and encrypting and deciphering system, it is characterised in that described acquisition port and transmission mouth are RJ45 network interface.
7. the plc data collection based on double; two network interfaces according to claim 4 and encrypting and deciphering system, it is characterised in that communicated by RMII interface between described acquisition port ethernet physical layer controller and acquisition port data processing module.
8. the plc data collection based on double; two network interfaces according to claim 4 and encrypting and deciphering system, it is characterised in that communicated by RMII interface between described transmission mouth ethernet physical layer controller and transmission mouth data processing module.
9. the plc data collection based on double; two network interfaces according to claim 1 and encrypting and deciphering system, it is characterised in that the quantity of described motor is at least 1；
Communicated by ICP/IP protocol between described PLC module and motor.
10. the plc data collection based on double; two network interfaces according to claim 1 and encrypting and deciphering system, it is characterized in that, described PLC module includes: master controller and motor drive converter, wherein, described master controller is connected with described pair of network interface data acquisition encrypting module, described motor drives the input of converter to be connected with described master controller, and described motor drives the outfan of converter to be connected with described motor；
Described master controller, for the motor service data got is transferred to described pair of network interface data acquisition encrypting module, is additionally operable to drive the operation of motor described in Frequency Converter Control by motor.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620080198.3U CN205389215U (en) | 2016-01-27 | 2016-01-27 | PLC data acquisition and encryption and decryption system based on two net gapes |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620080198.3U CN205389215U (en) | 2016-01-27 | 2016-01-27 | PLC data acquisition and encryption and decryption system based on two net gapes |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106528713A (en) * | 2016-10-26 | 2017-03-22 | 珠海格力电器股份有限公司 | Data acquisition method and intelligent communication gateway |
| CN106656960A (en) * | 2016-09-28 | 2017-05-10 | 北京辰极国泰科技有限公司 | Hilscher-based credible data acquisition system and method |
| CN106843058A (en) * | 2017-03-03 | 2017-06-13 | 南京富岛信息工程有限公司 | A kind of the secure data harvester and acquisition method of hiding control system IP address |
| CN107015509A (en) * | 2017-05-25 | 2017-08-04 | 广州地铁集团有限公司 | Gating device HDLC encryption datas and motor data real time acquisition device |
| CN110096023A (en) * | 2019-05-09 | 2019-08-06 | 江苏南高智能装备创新中心有限公司 | A kind of optimized data collection method based on plc agreement |
| CN110389554A (en) * | 2019-08-04 | 2019-10-29 | 长沙长泰智能装备有限公司 | SCM Based fault message radio transmitting device and transmission method |
| CN112422285A (en) * | 2020-11-20 | 2021-02-26 | 牛毅 | Plug and play control method and system for realizing PLC data safety transmission |
| CN113504759A (en) * | 2021-07-08 | 2021-10-15 | 中水三立数据技术股份有限公司 | Safety control method applied to monitoring integrated instruction transmission |
| CN113759820A (en) * | 2021-09-24 | 2021-12-07 | 北新集团建材股份有限公司 | Gypsum board production line network connection system |
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| CN106656960B (en) * | 2016-09-28 | 2019-12-17 | 北京辰极国泰科技有限公司 | hilscher-based credible data acquisition system and method |
| CN106656960A (en) * | 2016-09-28 | 2017-05-10 | 北京辰极国泰科技有限公司 | Hilscher-based credible data acquisition system and method |
| CN106528713A (en) * | 2016-10-26 | 2017-03-22 | 珠海格力电器股份有限公司 | Data acquisition method and intelligent communication gateway |
| CN106843058A (en) * | 2017-03-03 | 2017-06-13 | 南京富岛信息工程有限公司 | A kind of the secure data harvester and acquisition method of hiding control system IP address |
| CN107015509A (en) * | 2017-05-25 | 2017-08-04 | 广州地铁集团有限公司 | Gating device HDLC encryption datas and motor data real time acquisition device |
| CN107015509B (en) * | 2017-05-25 | 2024-02-23 | 广州地铁集团有限公司 | HDLC encrypted data and driving motor data real-time acquisition device of gate controller |
| CN110096023A (en) * | 2019-05-09 | 2019-08-06 | 江苏南高智能装备创新中心有限公司 | A kind of optimized data collection method based on plc agreement |
| CN110389554A (en) * | 2019-08-04 | 2019-10-29 | 长沙长泰智能装备有限公司 | SCM Based fault message radio transmitting device and transmission method |
| CN112422285A (en) * | 2020-11-20 | 2021-02-26 | 牛毅 | Plug and play control method and system for realizing PLC data safety transmission |
| CN112422285B (en) * | 2020-11-20 | 2024-01-30 | 牛毅 | Plug-and-play control method and system for realizing PLC data safety transmission |
| CN113504759A (en) * | 2021-07-08 | 2021-10-15 | 中水三立数据技术股份有限公司 | Safety control method applied to monitoring integrated instruction transmission |
| CN113504759B (en) * | 2021-07-08 | 2023-07-07 | 中水三立数据技术股份有限公司 | Safety control method applied to monitoring integrated instruction transmission |
| CN113759820A (en) * | 2021-09-24 | 2021-12-07 | 北新集团建材股份有限公司 | Gypsum board production line network connection system |
| CN113759820B (en) * | 2021-09-24 | 2023-04-28 | 北新集团建材股份有限公司 | Gypsum board production line network connected system |
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