CN111756772A - Major hazard source data monitoring system - Google Patents
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- CN111756772A CN111756772A CN202010708235.1A CN202010708235A CN111756772A CN 111756772 A CN111756772 A CN 111756772A CN 202010708235 A CN202010708235 A CN 202010708235A CN 111756772 A CN111756772 A CN 111756772A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 63
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- 230000005540 biological transmission Effects 0.000 abstract description 13
- 239000000284 extract Substances 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
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- 230000003287 optical effect Effects 0.000 description 3
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- 241000700605 Viruses Species 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/02—Network architectures or network communication protocols for network security for separating internal from external traffic, e.g. firewalls
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
- H04L63/0428—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/22—Parsing or analysis of headers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
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Abstract
The invention discloses a major hazard source data monitoring system, which comprises a hazard source access unit, a central control server, a monitoring display screen and a scanning terminal, wherein the hazard source access unit, the central control server, the monitoring display screen and the scanning terminal are deployed in an enterprise; the dangerous source access unit transmits the acquired dangerous source data to the central control server through the first network, the central control server receives the dangerous source data transmitted by the dangerous source access unit, encrypts the sensor data to generate a two-dimensional code, and transmits the two-dimensional code and the video data to the monitoring display screen; the monitoring display screen receives and displays the two-dimensional code and the video data transmitted by the central control server; the scanning terminal scans the two-dimensional code and the video data on the monitoring display screen, analyzes and extracts the two-dimensional code data to obtain sensor data, and sends the sensor data and the video data to the monitoring terminal through the second network, so that the multistage monitoring of the major hazard source is realized. The invention realizes the unidirectional data stream transmission between two physically isolated networks, and is safe and reliable.
Description
Technical Field
The invention relates to the technical field of safety, in particular to a major hazard source data monitoring system.
Background
By major hazard source is meant locations and facilities where hazardous materials are produced/handled/used/stored in excess of a threshold amount, including flammable/explosive/toxic materials, storage tank areas/inventory, fire/explosion/poisoning production locations and storage locations; the running state of a major hazard source and the intention important work content of safety production supervision and management during early warning and alarming; different units of major hazard enterprises, safety production supervision authorities and safety committee members need to master information of major hazard site videos, equipment parameters and the like from different aspects of steady life, safety supervision and emergency rescue at different stages in normal times, wartime and afterward, so that the major hazard site enterprises, the safety production supervision authorities and the safety committee members can master information of the major hazard site videos, the equipment parameters and the like,
the monitoring system of the data of the major hazard source can well meet the requirement.
At present, China increasingly depends on the Internet to complete the major hazard source monitoring system, and major hazard source information in enterprises is uploaded to supervision departments in real time through the Internet. However, many organizations or units keep business confidential or other sensitive information, and much information flows only in the intranet (hereinafter referred to as intranet), so how enterprises exchange information between the intranet and the internet or other public information networks becomes a problem to be solved urgently.
After the intranet is strictly isolated from the internet or other public information networks, the data exchange between the intranet and the intranet becomes a prominent problem, and the effective operation of an application system is influenced. In order to realize information transmission between an intranet and the internet or other public information networks, there are two main ways at present:
1. by means of logical isolation
The internet and the internal network are connected by adopting one-way leading-in equipment, such as a network gate or an optical gate, although the efficiency is high, the efficiency is not complete physical isolation, the cost is high, and the security is poor because the direct connection with the external network exists and the risk of secret leakage caused by network attack exists.
2. Physical isolation
The data of the external (or internal) network is recorded to the optical disc by adopting manual disc recording, and then the data is loaded to the internal (or external) network after being subjected to safety processing by manual work or transmitted by using a special safety U disc. Although the mode realizes the physical isolation between the external network and the internal network, the method has the defects of large resource consumption, low efficiency and difficult management, is easy to be attacked by ferry viruses and poses great threat to the safety of the internal network. The situation that the requirement on real-time performance of file transmission and the like is not high when an optical disk or a safe U disk is adopted to transmit data is acceptable, and the method cannot be applied to the situation that data transmission such as identity authentication information, sensor data, control information and the like is frequent.
Disclosure of Invention
In view of the defects of the prior art, the invention aims to provide a major hazard source data monitoring system which can safely and reliably realize data stream transmission between two physically isolated networks, can be physically isolated from a production network and ensure the network security; meanwhile, the encryption processing of the sensor data can also ensure the information security.
The application provides a major hazard source data monitoring system, which comprises a hazard source access unit, a central control server, a monitoring display screen and a scanning terminal, wherein the hazard source access unit, the central control server, the monitoring display screen and the scanning terminal are deployed in an enterprise;
the dangerous source access unit is used for transmitting collected dangerous source data to the central control server through a first network, wherein the dangerous source data comprises video data and sensor data;
the central control server is used for receiving the dangerous source data transmitted by the dangerous source access unit, encrypting the sensor data to generate a two-dimensional code, and transmitting the two-dimensional code and the video data to the monitoring display screen;
the monitoring display screen is used for receiving and displaying the two-dimensional code and the video data transmitted by the central control server;
the scanning terminal is used for scanning the two-dimensional code and the video data on the monitoring display screen, analyzing and extracting the two-dimensional code data to obtain sensor data, and sending the sensor data and the video data to the monitoring terminal through the second network.
Preferably, the hazard source access unit specifically includes:
the system comprises a video terminal, an environment sensor, a gas sensor, a PLC control terminal, a front-end processor and an exchanger, wherein the PLC control terminal is respectively connected with the video terminal, the environment sensor, the gas sensor and the front-end processor, and the front-end processor is connected with the exchanger;
the switch is connected with the router through a firewall, the router is connected with the core switch through the firewall, and the core switch is connected with the central control server.
Preferably, the video terminal is an explosion-proof camera.
Preferably, the central control server specifically includes:
the data receiving module is used for receiving the dangerous source data transmitted by the dangerous source access unit;
the data encryption module is used for encrypting the sensor data by adopting a 3DES technology;
the two-dimensional code generation module is used for generating a QR two-dimensional code from the encrypted sensor data;
and the data sending module is used for sending the QR two-dimensional code to a monitoring display screen.
Preferably, the scanning terminal specifically includes:
the scanning module is used for scanning the QR two-dimensional code displayed on the monitoring display screen and converting the scanned QR two-dimensional code into binary data;
the data decryption module is used for decrypting the binary data;
the video acquisition module is used for acquiring video data displayed on the monitoring display screen;
and the data sending module is used for transmitting the decrypted sensor data and the decrypted video data to the supervision terminal through a second network.
Preferably, the two-dimensional code includes time information and sensor data.
Preferably, the first network and the second network have "physical isolation", and the "physical isolation" means that the intranet does not have a direct physical connection with the internet or other public networks at any time.
One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:
compared with the prior art, the major hazard source data monitoring system provided by the invention comprises a hazard source access unit, a central control server, a monitoring display screen and a scanning terminal, wherein the hazard source access unit, the central control server, the monitoring display screen and the scanning terminal are deployed in an enterprise; the dangerous source access unit transmits the acquired dangerous source data to the central control server through the first network, the central control server receives the dangerous source data transmitted by the dangerous source access unit, encrypts the sensor data to generate a two-dimensional code, and transmits the two-dimensional code and the video data to the monitoring display screen; the monitoring display screen receives and displays the two-dimensional code and the video data transmitted by the central control server; the scanning terminal scans the two-dimensional code and the video data on the monitoring display screen, analyzes and extracts the two-dimensional code data to obtain sensor data, and sends the sensor data and the video data to the monitoring terminal through the second network, so that the multistage monitoring of the major hazard source is realized. The invention realizes the unidirectional data stream transmission between two physically isolated networks, is safe and reliable, can be used for file transmission, and is also suitable for unidirectional safe transmission of data streams such as identity authentication information, sensor data, equipment control information and the like.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.
FIG. 1 is a schematic diagram of a monitoring system according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a central control server according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a scanning terminal according to an embodiment of the present invention.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
As shown in fig. 1, the major hazard source data monitoring system provided in this embodiment includes a hazard source access unit deployed inside an enterprise, a central control server, a monitoring display screen, and a scanning terminal; the danger source access unit is connected with the central control server through a first network; and the scanning terminal sends the sensor data and the video data to the monitoring terminal through a second network. The dangerous source access unit transmits collected dangerous source data to a central control server, wherein the dangerous source data comprises video data and sensor data; the central control server is used for receiving the dangerous source data transmitted by the dangerous source access unit, encrypting the sensor data to generate a two-dimensional code, and transmitting the two-dimensional code and the video data to the monitoring display screen; the monitoring display screen is used for receiving and displaying the two-dimensional code and the video data transmitted by the central control server; the scanning terminal is used for scanning the two-dimensional code and the video data on the monitoring display screen, analyzing and extracting the two-dimensional code data to obtain sensor data, and sending the sensor data and the video data to the monitoring terminal through the second network. The first and second networks are not in communication, in other words, there is "physical isolation" between the first and second networks, which means that the intranet does not have a direct physical connection to the internet or other public network at any time.
Specifically, the hazard source access unit is used for transmitting a data stream to be transmitted to the central control server through a USB interface, an RS232 interface, an RS485 interface, an MODBUS interface and a PROFIBUS interface, wherein the data stream can be files, identity authentication information, sensor data, video data, control information and the like. For example, the intranet equipment can transmit the equipment state information to the internet through the system, and a network administrator can timely master the equipment state and timely remove faults; the central control server is used for receiving the data stream transmitted by the hazard source access unit, encrypting the data stream, generating a two-dimensional code and displaying the two-dimensional code on the monitoring display screen, wherein the encrypted two-dimensional code can be identified by specific equipment, namely a scanning terminal in the embodiment, so that the encrypted data stream is analyzed, and the transmission of the data stream is realized; the scanning terminal is used for identifying the two-dimensional code generated by the two-dimensional code generator, analyzing and extracting data and then sending the data to the monitoring terminal, so that the transmission of data streams is realized; the monitoring terminal is used for receiving the data sent by the scanning terminal through the Internet to obtain the required data stream.
Specifically, the hazard source access unit comprises a video terminal, an environment sensor, a gas sensor, an alarm, a PLC control terminal, a front-end processor and a switch, wherein the PLC control terminal is respectively connected with the video terminal, the environment sensor, the gas sensor, the front-end processor and the alarm, and the front-end processor is connected with the switch; the switch is connected with the router through a firewall, the router is connected with the core switch through the firewall, and the core switch is connected with the computer terminal. Namely: the video terminal, the environment sensor and the gas sensor are connected to a wiring port of the PLC control terminal through signal wires; after being processed by the PLC control terminal, the signals sequentially pass through the front-end processor, the switch, the firewall, the router, the firewall and the core switch to enter the computer terminal, and finally, the collected on-site data and image conditions are displayed on the computer terminal. The dangerous source access unit has relatively independent hardware facilities and functional design, focuses on-site environment monitoring and accident information remote reporting of the dangerous source access unit, and is characterized by automatic acquisition and analysis of safety information, fault diagnosis and accident early warning. When abnormal conditions occur, the PLC control terminal triggers the alarm to give an alarm, and alarm linkage images are displayed, and alarm history information is recorded and saved in the computer terminal. It is of course possible to configure the network line coupled to the safety supervision station by the monitoring center of the computer terminal via the carrier network of the operator, while conveying the alarm information to the safety supervision station. Video terminal generally adopts explosion-proof camera, avoids because damage when the dangerous situation appears, can also transmit on-the-spot image information when guaranteeing dangerous emergence.
In this embodiment, as shown in fig. 2, the central control server specifically includes: the data receiving module is used for receiving the dangerous source data transmitted by the dangerous source access unit; the data encryption module is used for encrypting the sensor data by adopting a 3DES technology; the two-dimensional code generation module is used for generating a QR two-dimensional code from the encrypted sensor data; and the data sending module is used for sending the QR two-dimensional code to a monitoring display screen.
In this embodiment, as shown in fig. 3, the scanning terminal specifically includes: the scanning module is used for scanning the QR two-dimensional code displayed on the monitoring display screen and converting the scanned QR two-dimensional code into binary data; the data decryption module is used for decrypting the binary data; the video acquisition module is used for acquiring video data displayed on the monitoring display screen; and the data sending module is used for transmitting the decrypted sensor data and the decrypted video data to the supervision terminal through a second network.
The two-dimensional code generation module and the scanning module transmit information through the QR two-dimensional code, and the information transmitted each time comprises two parts of time information and sensor data. The time information portion is used to indicate the time of acquisition of the portion of data. The sensor data part is a data stream to be transmitted. The invention realizes safe and reliable automatic transmission of data stream between two physically isolated networks.
In the embodiment, all video data are displayed on a large screen in a split picture mode, and all sensor data are encrypted to generate a two-dimensional code which is displayed on the lower right corner of the large screen; the two-dimensional code comprises time information and sensor data, is transmitted in a JSON format and is encrypted by using a 3DES technology; the QRCode is adopted for the two-dimensional code data, 7089 digital data are supported at most, and the number of the two-dimensional code data is generally within 2000 in consideration of fault tolerance. The scanning terminal adopts a high-frame-rate high-definition camera, the high frame rate is at least 60HZ, the pixels are at least 400 ten thousand, and the resolution is at least 1920 multiplied by 1080. For example, a large screen is monitored in real time, video data is collected, two-dimensional code data is obtained through code streams, and sensor data is obtained after decryption.
The invention realizes the information transmission of the first network and the second network with different security levels by the two-dimension code technology, and realizes the data stream transmission by taking the two-dimension code as a medium between the two networks under the condition of physical isolation.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (7)
1. A major hazard source data monitoring system is characterized by comprising a hazard source access unit, a central control server, a monitoring display screen and a scanning terminal, wherein the hazard source access unit, the central control server, the monitoring display screen and the scanning terminal are deployed in an enterprise;
the dangerous source access unit is used for transmitting collected dangerous source data to the central control server through a first network, wherein the dangerous source data comprises video data and sensor data;
the central control server is used for receiving the dangerous source data transmitted by the dangerous source access unit, encrypting the sensor data to generate a two-dimensional code, and transmitting the two-dimensional code and the video data to the monitoring display screen;
the monitoring display screen is used for receiving and displaying the two-dimensional code and the video data transmitted by the central control server;
the scanning terminal is used for scanning the two-dimensional code and the video data on the monitoring display screen, analyzing and extracting the two-dimensional code data to obtain sensor data, and sending the sensor data and the video data to the monitoring terminal through the second network.
2. The significant hazard source data monitoring system of claim 1, wherein the hazard source access unit specifically comprises:
the system comprises a video terminal, an environment sensor, a gas sensor, a PLC control terminal, a front-end processor and an exchanger, wherein the PLC control terminal is respectively connected with the video terminal, the environment sensor, the gas sensor and the front-end processor, and the front-end processor is connected with the exchanger;
the switch is connected with the router through a firewall, the router is connected with the core switch through the firewall, and the core switch is connected with the central control server.
3. The significant hazard source data monitoring system of claim 2, wherein the video terminal is an explosion-proof camera.
4. The significant hazard source data monitoring system of claim 1, wherein the central control server specifically comprises:
the data receiving module is used for receiving the dangerous source data transmitted by the dangerous source access unit;
the data encryption module is used for encrypting the sensor data by adopting a 3DES technology;
the two-dimensional code generation module is used for generating a QR two-dimensional code from the encrypted sensor data;
and the data sending module is used for sending the QR two-dimensional code to a monitoring display screen.
5. The significant hazard source data monitoring system of claim 1, wherein the scanning terminal specifically comprises:
the scanning module is used for scanning the QR two-dimensional code displayed on the monitoring display screen and converting the scanned QR two-dimensional code into binary data;
the data decryption module is used for decrypting the binary data;
the video acquisition module is used for acquiring video data displayed on the monitoring display screen;
and the data sending module is used for transmitting the decrypted sensor data and the decrypted video data to the supervision terminal through a second network.
6. The significant hazard source data monitoring system of claim 1, wherein the two-dimensional code contains time information and sensor data.
7. The significant hazard source data monitoring system of claim 1, wherein the first and second networks are physically isolated from each other, wherein physical isolation is that the intranet does not have a direct physical connection to the internet or other public network at any time.
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| CN202010708235.1A CN111756772A (en) | 2020-07-21 | 2020-07-21 | Major hazard source data monitoring system |
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| CN202010708235.1A CN111756772A (en) | 2020-07-21 | 2020-07-21 | Major hazard source data monitoring system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112464937A (en) * | 2020-12-15 | 2021-03-09 | 航天科工网络信息发展有限公司 | Abnormal alarm method in network physical isolation state |
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