CN113055872A - Data backup and control method and device in severe environment - Google Patents
Data backup and control method and device in severe environment Download PDFInfo
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- CN113055872A CN113055872A CN202110329737.8A CN202110329737A CN113055872A CN 113055872 A CN113055872 A CN 113055872A CN 202110329737 A CN202110329737 A CN 202110329737A CN 113055872 A CN113055872 A CN 113055872A
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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
- H04W4/90—Services for handling of emergency or hazardous situations, e.g. earthquake and tsunami warning systems [ETWS]
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/14—Error detection or correction of the data by redundancy in operation
- G06F11/1402—Saving, restoring, recovering or retrying
- G06F11/1446—Point-in-time backing up or restoration of persistent data
- G06F11/1448—Management of the data involved in backup or backup restore
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/04—Arrangements for maintaining operational condition
Abstract
A data backup and control method in a severe environment comprises the following steps: after the environmental parameter change exceeds a set threshold value, sending a data backup starting operation instruction to a data packet analysis and control module, enabling the data packet analysis and control module to enter a backup control mode, and starting a wireless transceiver module to construct a hotspot network; after the terminal equipment is accessed to the hotspot network, acquiring data backed up by the data packet analysis and control module, and sending a control instruction to the industrial equipment accessed by the data packet analysis and control module according to an analysis result; the method is scientific and reasonable, the equipment is easy to construct, the information transmission is quick, when the equipment encounters a severe environment, the environmental information can be sent to the rescue terminal in time, the risk avoiding instruction is sent out urgently, the data loss and further damage of industrial equipment are avoided, the enterprise loss is reduced, and the economic and social benefits are remarkable.
Description
Technical Field
The invention relates to the field of industrial production safety management, in particular to a method and a device for data backup and control in a severe environment.
Background
The management category of enterprises includes multiple aspects, such as production management, hazardous substance safety management and the like. With the continuous development of automation, digitalization and networking of industrial equipment, especially with the progress and rapid development of science and technology, the coming of the network 5G era, the importance of data security management problems of industrial equipment in industrial production management is more and more prominent. Especially for enterprises with severe production environment and high digitization degree, when harmful gas and corrosive liquid are leaked or the production environment is severe due to natural disasters, the method not only harms personnel, but also increases difficulty for accident/post-disaster rescue. When saving life, the high-value digital industrial equipment also needs to be subjected to emergency risk avoiding treatment, so that the loss is reduced to the maximum extent. Therefore, how to solve the data security of the industrial equipment in the severe environment is a technical problem which needs to be solved, but no public report is found so far.
Disclosure of Invention
In view of the above situation, to overcome the defects of the prior art, the present invention provides a method and an apparatus for data backup and control in a severe environment, which can effectively solve the problem of data backup and management in a severe environment and ensure the data security of industrial equipment.
The application provides a data backup and control method in a severe environment, which comprises the following steps:
after the environmental parameter change exceeds a set threshold value, sending a data backup starting operation instruction to a data packet analysis and control module, enabling the data packet analysis and control module to enter a backup control mode, and starting a wireless transceiver module to construct a hotspot network;
and after the terminal equipment is accessed to the hotspot network, acquiring the data backed up by the data packet analysis and control module, and sending a control instruction to the industrial equipment accessed by the data packet analysis and control module according to an analysis result.
Optionally, when the change of the environmental parameter does not exceed the set threshold, the data packet analysis and control module is in a transparent transmission mode, so as to implement transparent transmission of the data packet.
Optionally, the data packet is a network data packet, the data packet parsing and control module is implemented by an RTL module, and both the received and transmitted network data packets are subjected to signal conversion processing, where the signal conversion processing includes converting a differential signal into a digital signal and converting the digital signal into a differential signal; the terminal equipment is rescue terminal equipment and can be any one of a notebook computer, an IPad, an embedded terminal and a smart phone; and the step of sending a control instruction to the data packet analysis and control module according to the analysis result is specifically sending an equipment emergency risk avoiding instruction to the data packet analysis and control module.
Optionally, the judgment of the environmental parameters, the transmission and reception of the data packet analysis and control module operation instruction, the starting of the wireless transmission and reception module, and the caching of the backup data are controlled and coordinated by the central processing unit.
Optionally, the module for implementing each function may be in the form of an IP core or an RTL code, and each functional module accesses the SOC system on the chip in the form of one of an AXI bus, an AHB bus, or an APB bus in the AMBA bus architecture.
Optionally, the SOC system on chip further includes a power module, a clock module, and a reset module.
Optionally, the SOC may be directly connected between the network interface of the industrial device network card and the PHY chip.
The application also provides a special device for the data backup and control method in the severe environment, namely a data backup and control device in the severe environment, which comprises:
the central processing unit module is used for judging environmental parameters, analyzing data packets, receiving and sending operation instructions of the control module, starting the wireless receiving and sending module and controlling and coordinating the cache of backup data;
the data packet analysis and control module is used for transparently transmitting the network data packet in the transparent transmission mode and analyzing and controlling the network data packet in the backup control mode;
the data cache module is used for storing the network data cached by the data packet analysis and control module in the backup control mode;
the wireless transceiving module is used for constructing a wireless hotspot network for the rescue terminal equipment to access after the environmental parameter change exceeds a set threshold; before the change of the environmental parameters exceeds a set threshold value, acquiring the environmental parameters of corresponding nodes from a sensor;
and the signal conversion processing module is used for converting the network data packet between a differential signal format and a digital signal format.
Optionally, the wireless hotspot network system further comprises a rescue terminal module, wherein the rescue terminal module can be any one of a notebook computer, an IPad, an embedded terminal and a smart phone, and is used for accessing the wireless hotspot network constructed by the wireless transceiver module.
Optionally, the system further comprises an AMBA bus module for connecting the central processing unit module, the data packet parsing and controlling module, the data caching module, the wireless transceiving module, and the signal conversion processing module.
The method is scientific and reasonable, the equipment is easy to construct, the information transmission is quick, when the equipment encounters a severe environment, the environmental information can be sent to the rescue terminal in time, the risk avoiding instruction is sent out urgently, the data loss and further damage of industrial equipment are avoided, the enterprise loss is reduced, and the economic and social benefits are remarkable.
Drawings
FIG. 1 is a block diagram of the apparatus of the present invention.
Fig. 2 is a block diagram of the SoC chip architecture of the present invention.
Detailed Description
The following detailed description of the embodiments of the invention is provided in connection with the accompanying drawings and the detailed description.
The application provides a data backup and control method in a severe environment, which comprises the following steps:
and after the environmental parameter change exceeds a set threshold value, sending a data backup starting operation instruction to a data packet analysis and control module, entering a backup control mode by the data packet analysis and control module, and starting a wireless transceiver module to construct a hotspot network.
Specifically, the environmental parameters are acquired by sensors, such as temperature sensors, humidity sensors, gas sensors and the like, and can be specifically selected according to the environment of the industrial equipment; the threshold value can be set according to specific environmental science, for example, the concentration of the harmful gas reaches the concentration threshold value harmful to human health, the combustible gas reaches the critical threshold value of explosion, and the like.
The wireless transceiver module is a wireless transceiver module such as WIFI, GPRS, 4/5G, ZigBee or Bluetooth, or an on-chip antenna + a low noise amplifier; the wireless transceiver module is connected with the MCU, the MCU (micro control unit) is a microcontroller, the control of the wireless transceiver module and the sensor is realized in the SOC in the form of an IP core, the working mode is automatically switched according to the sensor data, and the instruction interaction and the register configuration are realized. Specifically, the IP core integrated with the WIFI on the SOC can be C4531 series or C4521/C4511 and the like of Imagination company.
And after the terminal equipment is accessed to the hotspot network, acquiring the data backed up by the data packet analysis and control module, and sending a control instruction to the industrial equipment accessed by the data packet analysis and control module according to an analysis result.
The device for storing backup data can be one or a combination of ROM, Flash, EEPROM or SDRAM, the IP core of ROM can be ROM core disclosed by Xilinx company, Flash can be AT25DF 641 or AT25DF321 of Atmel company, or M25P32 or M25P64 of Micron company; or one of S25FL032A, S25FL064A or S25SL128P1 by Spansion.
The wireless communication link comprises an MAC (media access control) sublayer and an LLC (logical link control) sublayer, and an Ethernet card MAC chip is used for realizing the functions of the MAC sublayer and the LLC sublayer and providing a PCI interface conforming to the specification so as to realize data exchange with a host; when sending data, the MAC protocol can judge in advance whether the data can be sent, if the data can be sent and some control information is added to the data, the data and the control information are finally sent to a physical layer in a specified format, when receiving the data, the MAC protocol firstly judges the input information and whether transmission errors occur, if no errors occur, the control information is removed and sent to an LLC (logical link control) layer;
optionally, when the change of the environmental parameter does not exceed the set threshold, the data packet analysis and control module is in a transparent transmission mode, so as to implement transparent transmission of the data packet.
Specifically, the transparent transmission mode is to transparently transmit the data stream, so that the data stream can be sent out without any processing, that is, the data stream cannot be influenced in the transparent transmission mode, and the data delay can be ignored.
The data packet analysis and control module is provided with two paths of data streams in a transparent transmission mode and a backup control mode, one path of data stream is transparent transmission of the network data stream in a normal working mode, at the moment, after the alarm information of the sensor module is received, the backup control mode is started, the network data packet sent by the industrial equipment is cached, and after the wireless transceiving module establishes communication, the data packet is sent to a data rescuer; the other path is a backup control mode, namely after the connection with the wireless terminal of the rescuer is established, a control instruction is sent to the industrial equipment so as to realize the emergency risk avoiding operation on the industrial equipment;
optionally, the data packet is a network data packet, the data packet parsing and control module is implemented by an RTL module, and both the received and transmitted network data packets are subjected to signal conversion processing, where the signal conversion processing includes converting a differential signal into a digital signal and converting the digital signal into a differential signal; the terminal equipment is rescue terminal equipment and can be any one of a notebook computer, an IPad, an embedded terminal and a smart phone; and the step of sending a control instruction to the data packet analysis and control module according to the analysis result is specifically sending an equipment emergency risk avoiding instruction to the data packet analysis and control module. The rescue terminal sends a wireless control instruction to a wireless receiving and sending module of the SoC in the network card equipment to realize emergency risk avoiding operation on the field industrial equipment, emergency shutdown of the dangerous industrial equipment is realized, and data backup, control and data safety are ensured.
Optionally, the judgment of the environmental parameters, the transmission and reception of the data packet analysis and control module operation instruction, the starting of the wireless transmission and reception module, and the caching of the backup data are controlled and coordinated by the central processing unit.
The central processing unit may be an MCU, specifically, an LS232 series of a dragon core or an 8052 series of crystal and herbal, and the like, and is not limited herein.
Optionally, the module for implementing each function may be in the form of an IP core or an RTL code, and each functional module accesses the SOC system on the chip in the form of one of an AXI bus, an AHB bus, or an APB bus in the AMBA bus architecture.
The IP core is an abbreviation of Intellectual Property, namely an Intellectual Property core or an Intellectual Property module, the IP core is called to avoid repeated labor, the burden of engineers is greatly reduced, the IP core is a development trend, and the product marketing time is greatly shortened due to the reuse of the IP core.
The SOC chip adopts an AMBA bus architecture, the MCU and the RAM for High-speed data transmission are both hung on an AHB (advanced High performance bus) bus, and the sensor module and the wireless transceiver module are accessed into an APB (advanced performance bus). The Microcontroller Bus Architecture Advanced Microcontroller Bus Architecture (AMBA) defines the communication standard for high performance embedded microcontrollers; the RISC processor is integrated in the IP core and the peripheral, is a 'digital glue' effectively connected with the IP core, is an important component of an ARM multiplexing strategy, is not an interface between the chip and the peripheral, and is an interface for communication between the ARM core and the chip. Advanced High-performance Bus (AHB): the AHB bus is used for high performance, high clock operating frequency modules. The AHB plays a role of a basic stone for high-performance operation of a system in an AMBA framework, provides interfaces for a high-performance processor, an on-chip memory and an off-chip memory, and simultaneously bridges a slow peripheral. High performance, data transmission, multi-bus master controller, burst continuous transmission, and step transmission.
Optionally, the SOC system on chip further includes a power module, a clock module, and a reset module.
The power, clock and reset functions are functional blocks that each SOC chip must have. Common power modules provide 3.3V, 1.8V, and 1.2V voltages for the SOC; the clock is determined according to the working frequency inside the SOC, and can be 125MHz, 25MHz and the like; the reset module can be hardware reset, software reset and the like, and a reset circuit is designed and a corresponding reset interface is reserved.
Optionally, the SOC may be directly connected between a network port of the network card of the industrial device and the PHY chip, or connected to the network card of the industrial device through a network port transformer.
Common PHY chips on network cards of industrial devices include RTL8211E manufactured by Realtek, IP1001M manufactured by IC + or 88Q1010 manufactured by Marvell, etc.; a common port is RJ 45. The processing of the network signal by the IP core of the PHY (i.e. the PHY IP core of fig. 2) is to convert the high-speed differential signal input by the network port transformer into a network bit stream at a set rate, the conversion is bidirectional conversion, the interface conversion module realizes a reverse function with the PHY IP core, that is, the network data stream is converted into a differential signal input that can be recognized by the PHY chip, so as to reduce the modification of the main structure of the original network card, and to better expand the applicability of the SOC.
The application also provides a special device for the data backup and control method in the severe environment, namely a data backup and control device in the severe environment, which comprises:
the central processing unit module is used for judging environmental parameters, analyzing data packets, receiving and sending operation instructions of the control module, starting the wireless receiving and sending module and controlling and coordinating the cache of backup data;
the central processing unit module can be an MCU, specifically can be LS232 series of a dragon core or 8052 series of crystal grain, and the like, can be an MCU device, and can also be an IP core corresponding to the MCU.
The data packet analysis and control module is used for transparently transmitting the network data packet in the transparent transmission mode and analyzing and controlling the network data packet in the backup control mode;
the data packet analysis and control module is used for realizing two-path data stream transmission control in a transparent transmission mode and a backup control mode, wherein one path is transparent transmission of network data stream in a normal working mode, at the moment, after the alarm information of the sensor module is received, the backup control mode is started, the network data packet sent by the industrial equipment is cached, and after the wireless transceiving module establishes communication, the network data packet is sent to a data rescuer; and the other path is a backup control mode, namely after the connection with the wireless terminal of the rescuer is established, a control instruction is sent to the industrial equipment so as to realize the emergency risk avoiding operation on the industrial equipment. The module may be implemented in the form of RTL code or IP core.
The data packet analyzing and controlling module also comprises a Media Access Control (MAC) function, and the function is realized by control chips of different forms, such as an FPGA, a cpld, an MCU and the like; MAC interface is GMII, RGMII or MII; after receiving an IP packet (or a packet of another network layer protocol) from the PCI bus, the MAC splits and repacks the IP packet into a frame with a maximum 1518Byte and a minimum 64Byte, where the frame includes a destination MAC address, its own source MAC address, and a protocol type in the packet (for example, the type of the IP packet is denoted by 80, and finally, a CRC code of DWORD (4 Byte);
and the data caching module is used for storing the network data cached by the data packet analyzing and controlling module in the backup control mode.
The data cache module may be a specific storage device, such as one or a combination of ROM, Flash, EEPROM or SDRAM, the IP core of ROM may be the ROM core disclosed by Xilinx, Flash may be AT25DF 641 or AT25DF321 by Atmel, or M25P32 or M25P64 by Micron; or one of S25FL032A, S25FL064A or S25SL128P1 of Spansion;
the data caching module can also be integrated into an SoC chip together with the IP core form of the storage device.
The wireless transceiving module is used for constructing a wireless hotspot network for the rescue terminal equipment to access after the environmental parameter change exceeds a set threshold; and acquiring the environmental parameters of the corresponding nodes from the sensors before the environmental parameter changes exceed the set threshold.
And the signal conversion processing module is used for converting the network data packet between a differential signal format and a digital signal format.
Optionally, the wireless hotspot network system further comprises a rescue terminal module, wherein the rescue terminal module can be any one of a notebook computer, an IPad, an embedded terminal and a smart phone, and is used for accessing the wireless hotspot network constructed by the wireless transceiver module.
Optionally, the system further comprises an AMBA bus module for connecting the central processing unit module, the data packet parsing and controlling module, the data caching module, the wireless transceiving module, and the signal conversion processing module.
In addition, after the backup control mode is started, the sensor can continue to work to provide field environment parameters for subsequent rescuers through wireless connection; after the wireless connection between the wireless transceiver module and the external rescue terminal is successfully established, the cached network data packet is sent to the rescue terminal, so that a rescuer can judge the state of the field equipment according to the data, and a more scientific and efficient decision is realized. And in the other control mode, a rescuer can send a control instruction to the industrial equipment which cannot be approached in the severe environment through the terminal equipment, and the cache data received in the backup control mode can be referred to before sending or can be directly executed according to a preset configuration scheme.
It should be further noted that, when the SOC chip is used to implement data backup and control in a severe environment, each functional module is accessed to the SOC on-chip bus in the form of RTL code or related IP core to implement aspects; or the functions in the device architecture are realized in the form of a PCB board card, and at this time, each functional module is an independent functional module, such as a WIFI module, a GPRS module or a Flash memory, or a functional module integrating multiple functions.
It can be clearly seen from the above that, when the industrial equipment equipped with the SOC chip senses the damage through the sensor, the invention automatically starts the network data backup control mode, and timely backs up and stores the current working state information of the industrial equipment, and when the rescue terminal accesses the wireless network established by the wireless transceiver module and establishes wireless connection, the information and the environment information collected in real time are sent to the rescue terminal for the reference decision of the following rescuers. The emergency danger avoiding operation instruction can be sent to the industrial equipment through the rescue terminal, such as executing emergency data storage, data backup or dangerous operation of closing the equipment, so that the data on the industrial equipment (a computer hard disk) is better protected, important data loss and further damage are avoided, the read-write speed of the hard disk is not reduced, the enterprise loss is effectively reduced, the emergency danger avoiding operation method is a great innovation for protecting the industrial data in severe environment, and remarkable social benefit and economic benefit are achieved.
Claims (10)
1. A data backup and control method in a severe environment is characterized by comprising the following steps:
after the environmental parameter change exceeds a set threshold value, sending a data backup starting operation instruction to a data packet analysis and control module, enabling the data packet analysis and control module to enter a backup mode, and starting a wireless module to construct a hotspot network;
and after the terminal equipment is accessed to the hotspot network, acquiring the data backed up by the data packet analysis and control module, and sending a control instruction to the industrial equipment accessed by the data packet analysis and control module according to an analysis result.
2. The method according to claim 1, wherein when the environmental parameter change does not exceed a predetermined threshold, the packet parsing and control module is in a transparent transmission mode to achieve transparent transmission of the packet.
3. The method according to claim 1, wherein the data packets are network data packets, the data packet parsing and control module is implemented by an RTL module, and the received and transmitted network data packets are subjected to signal conversion processing, the signal conversion processing includes converting differential signals into digital signals and converting digital signals into differential signals; the terminal equipment is rescue terminal equipment and is any one of a notebook computer, an IPad, an embedded terminal and a smart phone; and the step of sending a control instruction to the data packet analysis and control module according to the analysis result is specifically sending an equipment emergency risk avoiding instruction to the data packet analysis and control module.
4. The method according to claim 1, wherein the determination of the environmental parameters, the parsing of the data packets, the receiving and sending of the operation commands of the control module, the opening of the wireless module, and the caching of the backup data are controlled and coordinated by a central processing unit.
5. The method of claim 1, wherein the module for implementing each function is in the form of an IP core or an RTL code, and each functional module accesses the SOC system on chip in the form of one of an AXI bus, an AHB bus, or an APB bus in an AMBA bus architecture.
6. The method for data backup and control in a severe environment of claim 1, wherein the SOC-on-chip system further comprises a power module, a clock module, and a reset module.
7. The method for data backup and control in a harsh environment of claim 1, wherein the SOC on chip is directly accessible between the network interface of the industrial device network card and the PHY chip.
8. The harsh environment data backup and control apparatus of any one of the methods of claims 1-7 comprising:
the central processing unit module is used for judging environmental parameters, analyzing data packets, receiving and sending operation instructions of the control module, starting the wireless module and controlling and coordinating the cache of backup data;
the data packet analysis and control module is used for transparently transmitting the network data packet in the transparent transmission mode and analyzing and controlling the network data packet in the backup mode;
the data cache module is used for storing the network data cached by the data packet analysis and control module in the backup mode;
the wireless module is used for constructing a wireless hotspot network for the rescue terminal equipment to access after the environmental parameter change exceeds a set threshold; before the change of the environmental parameters exceeds a set threshold value, acquiring the environmental parameters of corresponding nodes from a sensor;
and the signal conversion processing module is used for converting the network data packet between a differential signal format and a digital signal format.
9. The device for data backup and control in a severe environment according to claim 8, further comprising a rescue terminal module, wherein the rescue terminal module is any one of a laptop, an IPad, an embedded terminal, and a smart phone, and is used for accessing to a wireless hotspot network constructed by the wireless module.
10. The apparatus of claim 8, further comprising an AMBA bus module for connecting the central processing unit module, the packet parsing and control module, the data buffer module, the wireless module, and the signal conversion processing module.
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Address after: 450001 Ximei building, No. 6, Changchun Road, high tech Industrial Development Zone, Zhengzhou City, Henan Province Applicant after: Zhengzhou Zhongke integrated circuit and System Application Research Institute Address before: 450001 Zhimei building, no.6, Changchun Road, high tech Industrial Development Zone, Zhengzhou City, Henan Province Applicant before: Zhengzhou Zhongke integrated circuit and Information System Industry Innovation Research Institute |
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Application publication date: 20210629 |
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| WW01 | Invention patent application withdrawn after publication |