CN114745398A - Data acquisition and access system - Google Patents

Data acquisition and access system Download PDF

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Publication number
CN114745398A
CN114745398A CN202110017627.8A CN202110017627A CN114745398A CN 114745398 A CN114745398 A CN 114745398A CN 202110017627 A CN202110017627 A CN 202110017627A CN 114745398 A CN114745398 A CN 114745398A
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China
Prior art keywords
server
dmz
intranet
data
message
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Inventor
高忠献
殷海军
宋火轮
贺瑞怡
张军霞
刘佳庆
王渭江
王天宇
陈玉明
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Petrochina Co Ltd
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Petrochina Co Ltd
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Priority to CN202110017627.8A priority Critical patent/CN114745398A/en
Publication of CN114745398A publication Critical patent/CN114745398A/en
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00Network arrangements or protocols for supporting network services or applications
    • H04L67/01Protocols
    • H04L67/12Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W12/00Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/009Security arrangements; Authentication; Protecting privacy or anonymity specially adapted for networks, e.g. wireless sensor networks, ad-hoc networks, RFID networks or cloud networks
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30Services specially adapted for particular environments, situations or purposes
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W8/00Network data management
    • H04W8/26Network addressing or numbering for mobility support
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P90/00Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
    • Y02P90/02Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Databases & Information Systems (AREA)
  • Computer Security & Cryptography (AREA)
  • Health & Medical Sciences (AREA)
  • Computing Systems (AREA)
  • General Health & Medical Sciences (AREA)
  • Medical Informatics (AREA)
  • Computer And Data Communications (AREA)

Abstract

The application provides a data acquisition and access system, and belongs to the technical field of oil field information. The system comprises a data acquisition part, a cloud server, a DMZ channel and an intranet server, wherein the data acquisition part is located in an acquisition site, the cloud server is located outside an enterprise, the intranet server is located inside the enterprise, the cloud server is used for sending a data acquisition request to the data acquisition part when a data acquisition condition is met, receiving target data sent by the data acquisition part, and sending a first message comprising the target data to the DMZ server through address information of the DMZ server in the DMZ channel. The DMZ server is used for determining the address information of the intranet server according to the corresponding relation between the stored address information of the DMZ server and the address information of the intranet server, and sending a second message comprising target data to the intranet server through the address information of the intranet server. By means of the data access system, the collected data are accessed to the intranet of the oil field enterprise.

Description

Data acquisition and access system
Technical Field
The application relates to the technical field of oil field information management, in particular to a data acquisition and access system.
Background
In order to facilitate oil and gas production management of an oil field, data collected on the oil field is generally required to be obtained, but optical fibers are difficult to lay in remote areas such as single-well oil pumping points and oil pipelines, so that the data collected by the data collection part cannot be transmitted to an internal network of an oil field enterprise, and the data is generally manually copied to the inside of the oil field enterprise. Therefore, how to quickly transmit the data collected by the data collection part to the interior of the oil field enterprise is very important.
In the related art, in order to rapidly transmit data acquired by a data acquisition part to an intranet of an oil field enterprise, data is remotely transmitted to the intranet of the oil field enterprise through a fourth-generation mobile communication network.
In recent years, due to the provision of information security of oil field enterprises, data of external networks of some oil field enterprises cannot directly enter the oil field enterprises, so that remote transmission of the data to an internal network of the oil field enterprise is impossible.
Disclosure of Invention
In order to solve the problems in the prior art, the embodiments of the present application provide a data acquisition and access system. The technical scheme is as follows:
in a first aspect, a data acquisition and access system is provided, which is applied to oilfield management, the system includes a data acquisition part, a cloud server, an isolation zone (DMZ) channel, and an intranet server, the data acquisition part is located at an acquisition site, the cloud server is located outside an enterprise, the intranet server is located inside the enterprise, the DMZ channel includes a DMZ server, wherein:
the cloud server is configured to: when the data acquisition condition is met, sending a data acquisition request to the data acquisition part through a wireless network; receiving target data sent by the data acquisition part through a wireless network; sending a first message including the target data to the DMZ server through the address information of the DMZ server;
the DMZ server is used for determining the address information of the intranet server according to the stored corresponding relation between the address information of the DMZ server and the address information of the intranet server, and sending a second message comprising the target data to the intranet server through the address information of the intranet server.
Therefore, the cloud server is added in the data access system, so that the data acquired by the data acquisition part can be transmitted to the intranet.
In one possible implementation, the data collection portion includes a Data Transfer Unit (DTU) and at least one smart meter; the DTU includes a Subscriber Identification Module (SIM) card;
the DTU establishes communication connection with the at least one intelligent instrument;
the DTU is used for:
receiving the data acquisition request sent by the cloud server under the condition that the communication function of the DTU is activated by an SIM card;
sending a data collection notification to the at least one smart meter;
receiving the target data sent by the at least one intelligent instrument;
and sending the target data to the cloud server by using the address information of the cloud server.
Therefore, the data acquired by the data acquisition part can be transmitted to the cloud server, and meanwhile, the online condition of the intelligent instrument can be accurately judged.
In a possible implementation manner, the first message and the second message further include identification information of the DTU;
the DTU is used for:
and under the condition that the communication function of the DTU is activated by the SIM card, using the address information of the cloud server to send the identification information of the DTU and the target data to the cloud server.
Thus, the DTUs to which the first message and the second message belong can be identified.
In a possible implementation manner, the DTU is further configured to send a heartbeat message to the cloud server, where the heartbeat message is used to maintain and monitor an online state of the DTU in a mobile network.
In this way, the online condition of the cloud server and the online state of the mobile network of the DTU can be judged.
In one possible implementation, the relationship between the DTU and the at least one smart meter is a master-slave relationship;
the DTU is connected with the at least one intelligent instrument through an RS485 bus, or the DTU is connected with the at least one intelligent instrument through an RS485 concentrator.
In this way, a variety of means may be used to interface with the smart meter.
In a possible implementation manner, the cloud server is further configured to convert the target data into a preset format;
the cloud server is used for sending a first message including the target data in the preset format to the DMZ server.
Thus, the server of the intranet can accurately recognize the target data.
In a possible implementation manner, the intranet server is configured to store the received target data and send the target data to a data display server, and the data display server is configured to display the target data to a preset webpage.
In this way, the target data may be presented to the user.
In a possible implementation manner, the intranet server is configured to store the received target data and display the target data to a preset webpage.
In this way, the target data may be presented to the user.
In a possible implementation manner, the DMZ channel further includes an intranet firewall and an extranet firewall;
the intranet firewall is used for receiving the second message sent by the DMZ server, carrying out illegal detection on the second message, and transmitting the second message to the intranet server after the illegal detection is passed;
the external network firewall is used for receiving the first message sent by the cloud server, carrying out illegal detection on the first message, and transmitting the first message to the DMZ server after the illegal detection is passed.
In this way, since the DMZ channel includes two firewalls to perform illegal detection, the server in the intranet can be made more secure.
In a possible implementation manner, the address information is an Internet Protocol (IP) address and a port number.
The beneficial effects brought by the technical scheme provided by the embodiment of the application at least comprise:
in the embodiment of the application, the target data are forwarded through the cloud server, pass through the DMZ channel and then enter the intranet server instead of directly transmitting external data to the intranet server, so that the enterprise collects production data of remote areas, the data collected by the extranet are accessed into an intranet of the enterprise, and a data collection and access system is provided.
In addition, the intranet server only needs to receive the data pushed by the DMZ server, and the intranet server does not need to participate in the data acquisition process, so that the intranet server does not need to send the data to the outside, the intranet data in an enterprise can be prevented from being sent to the outside, one-way transmission is achieved, and enterprise information safety regulations of oil field enterprises are met.
Drawings
Fig. 1 is a structural diagram of a data acquisition and access system according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of a DMZ channel in a data acquisition and access system according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of a data acquisition part in a data acquisition and access system according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of a computer device according to an embodiment of the present application.
Description of the drawings
Data acquisition portion 1, DTU 11;
a smart meter 12; a cloud server 2;
DMZ channel 3, DMZ server 31;
an intranet firewall 32, an extranet firewall 33;
and an intranet server 4.
Detailed Description
To make the objects, technical solutions and advantages of the present application more clear, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.
In order to provide a technical scheme for remotely transmitting field acquired data to the interior of an enterprise and meeting the information security of the enterprise, in the embodiment of the application, a data acquisition and access system is provided, and the data acquisition and access system can transmit the field acquired data to an enterprise intranet, wherein the enterprise intranet can be an oil field enterprise intranet. Specifically, as shown in fig. 1, the data acquisition and access system includes a data acquisition part 1, a cloud server 2, a DMZ channel 3, and an intranet server 4, where the DMZ channel 3 includes a DMZ server 31. The cloud server 2 is used for: when the data acquisition condition is met, sending a data acquisition request to the data acquisition part 1 through a wireless network; receiving target data sent by the data acquisition part 1 through a wireless network; sending a first message including target data to the DMZ server 31 through the address information of the DMZ server 31; the DMZ server 31 is configured to determine the address information of the intranet server 4 according to the stored correspondence between the address information of the DMZ server 31 and the address information of the intranet server 4, and send a second message including the target data to the intranet server 4 through the address information of the intranet server 4.
Wherein, the data acquisition part 1 is positioned at the oil field site, namely in the area for producing oil (of course, the data acquisition part can also be positioned at the site of other fields, such as agriculture and power grid). The cloud server 2 is located outside the enterprise, belongs to equipment in an external network, is provided with data forwarding software, can communicate with the data acquisition part 1, and has a function of transmitting data acquired by the data acquisition part 1 to other networks. The intranet server 4 is located inside an enterprise and belongs to an intranet. The DMZ channel 3 is located between the cloud server 2 and the intranet server 4, and is used for isolating the intranet from the extranet and protecting the security of the intranet, that is, for isolating the intranet server 4 from the cloud server 2, and the DMZ channel 3 includes a DMZ server 31. The cloud server 2 and the DMZ server 31 may be in wired communication or in wireless communication. The address information of the DMZ server 31 is address information presented to the cloud server 2 by the DMZ server 31. The address information of the intranet server 4 is address information presented to the DMZ server 31 by the intranet server 4.
In this embodiment, when detecting that the data acquisition condition is satisfied, the cloud server 2 may send a data acquisition request to the data acquisition unit 1 through the wireless network. The data acquisition condition may be that a preset acquisition period is reached, or a data acquisition notification is received, the acquisition period may be configured in the cloud server 2 by a technician, and the condition of receiving the data acquisition notification may be: when needing to acquire data of an acquisition field, technicians of an enterprise can access the cloud server 2 through an external network and issue acquisition notifications to the cloud server 2.
When the data acquisition part 1 receives a data acquisition request sent by the cloud server 2, the data acquisition part 1 can acquire current data, namely acquire target data, and the data acquisition part 1 sends the target data to the cloud server 2 through a wireless network.
The cloud server 2 receives the target data sent by the data acquisition part 1. The cloud server 2 stores therein address information of the DMZ server 31, which may be an IP address and a port number of the DMZ server 31, the port number being used to indicate a service to be executed. The cloud server 2 may generate a packet including the target data, that is, a first packet, based on the address information of the DMZ server 31, where a destination address of the first packet is an IP address of the DMZ server 31, a port number of a destination port of the first packet is a port number of the DMZ server 31, and the cloud server 2 sends the first packet including the target data to the DMZ server 31.
After receiving the first packet including the target data, the DMZ server 31 may parse the first packet, and obtain a destination address and a destination port number in the first packet. The DMZ server 31 obtains a correspondence between address information of the DMZ server and address information of the intranet server, which are stored in advance, and obtains address information of the intranet server 4 in the correspondence according to the destination address and the destination port number in the first message.
After acquiring the address information of the intranet server 4, the DMZ server 31 may generate a second message whose destination address is the IP address of the intranet server 4 and whose destination port number is the port number of the intranet server 4, where a data portion in the second message is target data. The DMZ server 31 sends a second message including the target data to the intranet server 4. Like this, when enterprise information safety regulation intranet data of oil field enterprise can not transmit to the extranet, when the data transmission direction of DMZ passageway 3 was one-way promptly, cloud server 2 can obtain the target data, with target data propelling movement to DMZ server 31, DMZ server 31 with target data propelling movement to intranet server 4, just also realize data remote transmission to oil field enterprise intranet with the field collection in oil field.
Optionally, the intranet server 4 is connected to a database, and the intranet server 4 may store the received target data in the database.
In a possible implementation manner, as shown in fig. 2, the DMZ channel 3 further includes an intranet firewall 32 and an extranet firewall 33, where the DMZ channel 3 is a data cache region set for solving the problem that the extranet cannot access the intranet server 4 inside the enterprise, and network security inside the enterprise can be effectively protected through the DMZ channel 3. The intranet firewall 32 may be provided on a gateway device of an intranet, and the firewall function may be provided on the gateway device by software or hardware, but the intranet firewall 32 may be provided on one device alone. The extranet firewall 33 may be provided in a gateway device of the extranet, and the firewall function may be provided in the gateway device by software or hardware, but the extranet firewall 33 may be provided in a single device. The specific functions of the intranet firewall 32 and the extranet firewall 33 may be:
the intranet firewall 32 is configured to receive the second message sent by the DMZ server 31, perform illegal detection on the second message, and transmit the second message to the intranet server 4 after the illegal detection passes. The external network firewall 33 is configured to receive the first packet sent by the cloud server 2, perform illegal detection on the first packet, and transmit the first packet to the DMZ server 31 after the illegal detection is passed.
In this embodiment, the message sent by the cloud server 2 to the DMZ channel 3 sequentially passes through the extranet firewall 33, the DMZ server 31, and the intranet firewall 32 of the DMZ channel 3, and reaches the intranet server 4. The process is as follows: the first packet entering the DMZ channel 3 will first reach the extranet firewall 33. The external network firewall 33 may perform illegal detection on the first packet, and transmit the first packet to the DMZ server 31 after the illegal detection is passed.
The DMZ server 31 converts the first message into a second message (this process is described above).
The DMZ server 31 sends the second message to the intranet firewall 32, and the intranet firewall 32 receives the second message sent by the DMZ server 31. The intranet firewall 32 performs illegal detection on the second message, and transmits the second message to the intranet server 4 after the illegal detection is passed.
Here, the illegal detection contents performed by the extranet firewall 33 may include: and detecting whether the IP address of the accessed cloud server is a legal IP address or not, and whether viruses exist in the first message or not. And when the IP address of the accessed cloud server is determined to be legal and the first message is detected to have no virus, transmitting the first message to the DMZ server 31.
In addition, for more secure protection of the intranet server 4, the DMZ server 31 has external address information and internal address information, the cloud server 2 only knows the external address information of the DMZ server 31, the address information of the DMZ server 31 included in the first message is the external address information of the DMZ server 31, the external firewall 33 converts the external address information of the DMZ server 31 in the first message into the pre-stored internal address information of the DMZ, and transmits the converted first message to the DMZ server 31. In this way, the extranet firewall 33 may also perform address translation so that the cloud server 2 does not know the intra-address information of the DMZ server 31.
Thus, after receiving the converted first message, the DMZ server 31 determines that the destination address information of the first message is the internal address information of itself, and may determine that the converted first message is sent to the intranet server 4. The correspondence between the address information of the DMZ server 31 and the address information of the intranet server 4 is a correspondence between the internal address information of the DMZ server 31 and the external address information of the intranet server 4, and the DMZ server 31 can determine the external address information of the intranet server 4 in the correspondence.
Here, the illegal detection by the intranet firewall 32 may include: and detecting whether the second message has viruses or not, and determining whether the source address information of the second message is a legal IP address or not. When the virus does not exist in the second message and the source address of the second message is determined to be a legal IP address, the intranet firewall 32 transmits the second message to the intranet server 4.
In addition, for more secure protection of the intranet server 4, the DMZ server 31 has external address information and internal address information, and the address information of the intranet server 4 acquired by the DMZ server 31 is the external address information of the intranet server 4, so that the destination address information of the second message is the external address information of the intranet server 4, and the source address information is the internal address information of the DMZ server 31. When recognizing that the source address information in the second message is the internal address information of the DMZ server 31, the intranet firewall 32 may modify the destination address information in the second message into the internal address information of the intranet server 4, and transmit the second message with the modified destination address information to the intranet server 4. In this way, the intranet firewall 32 can also perform address conversion so that the DMZ server 31 does not know the internal address information of the intranet server 4.
In this way, since the intranet firewall 32 and the extranet firewall 33 can be used for isolation, data transmitted to the intranet server 4 can be secured.
It should be noted that the above is only one possible data transmission method of the DMZ channel 3, and of course, other data transmission methods may be used, and the embodiment of the present application is not limited.
In a possible implementation manner, the cloud server 2 may convert the format of the target data into a preset format, and the processing is as follows: the cloud server 2 is further used for converting the target data into a preset format; the cloud server 2 is configured to send a second packet including target data in a preset format to the DMZ server 31.
In this embodiment, the cloud server 2 is provided with a data processing function, and the target data is converted into data in a uniform format through the function, that is, the target data in a preset format is acquired. For example, the cloud server 2 converts the target data into a uniform data format that can be transmitted between the servers in the intranet.
The cloud server 2 then sends a second packet including the target data in the preset format to the DMZ server 31.
Therefore, the target data can be in a uniform format, and the intranet server 4 can conveniently recognize and process the target data.
In a possible implementation manner, the intranet server 4 is configured to store the received target data and send the target data to the data display server, and the data display server is configured to display the target data to a preset webpage.
In this embodiment, after receiving the target data, the intranet server 4 may store the target data and send the target data to the data presentation server. The data presentation server may present all or part of the target data to a preset web page. Alternatively, after receiving the target data, the intranet server 4 may store the target data in a database connected to the intranet server 4. The data display server can read the target data from the database according to the storage position information and display the target data to a preset webpage. Therefore, when a client in the intranet accesses a preset webpage, the client can acquire the target data, and a user in the intranet can further acquire the target data.
In a possible implementation manner, the intranet server is configured to store the received target data and display the target data to a preset webpage.
In this embodiment, after receiving the target data, the intranet server 4 may store the target data in a database, and display the target data on a preset webpage. Therefore, when a client in the intranet accesses a preset webpage, the client can acquire the target data, and then a user in the intranet can acquire the target data.
In one possible implementation, as shown in fig. 3, the data collection part 1 may include a DTU11 and at least one smart meter 12, and the DTU11 includes a SIM card that can implement fourth generation mobile network communication and/or implement fifth generation mobile network communication, so that the communication function of the DTU11 can be implemented by the SIM card. Specifically, the DTU11 includes a SIM card socket, and a SIM card can be inserted into the SIM card socket, and after the SIM card is inserted into the SIM socket, the DTU11 has a wireless internet access function, and can communicate with the cloud server 2. The at least one smart meter 12 is one smart meter 12 or a plurality of smart meters 12. The at least one smart meter 12 may include a pressure meter, a temperature meter, or other meter. The pressure instrument is used for detecting pressure, and the temperature instrument is used for detecting temperature. The DTU11 establishes a communication connection with at least one smart meter 12; the DTU11 is used for: the method comprises the steps that after a wireless communication function is activated through an SIM card, a data acquisition request sent by a cloud server 2 is received; sending a data collection notification to at least one smart meter 12; receiving target data sent by at least one smart meter 12; the target data is transmitted to the cloud server 2 using the address information of the cloud server 2.
In this embodiment, a communication connection is established between the DTU11 and at least one smart meter 12, and the DTU11 may be configured to receive a data collection request sent by the cloud server 2 after activating the wireless communication function through the SIM card. The DTU11 then sends a data collection notification to the connected at least one smart meter 12. After receiving the data collection notification, the at least one smart meter 12 may collect current data, or obtain latest data collected before the current time point, that is, obtain target data. The at least one smart meter 12 may then send the collected target data to the DTU 11.
By setting, the DTU11 may obtain stored address information of the cloud server 2, where the address information includes an IP address and a port number, and the DTU11 establishes a connection with the cloud server 2 through the IP address and the port number of the cloud server 2. After receiving the target data sent by at least one intelligent instrument 12, the DTU11 may generate a message whose destination address is an IP address of the cloud server 2 and whose destination port number is a port number of the cloud server 2. The data portion in the message is the target data. The DTU11 sends the message to the cloud server 2, that is, sends the target data to the cloud server 2.
In this way, the data acquisition part 1 can transmit the data acquired on the acquisition site to the cloud server 2.
In a possible implementation manner, the DTU11 may further provide the identification information of the DTU11 to the cloud server 2, and the processing is as follows:
the DTU11 transmits the identification information and the target data of the DTU11 to the cloud server 2 using the address information of the cloud server 2 in a case where the communication function is activated by the SIM card; the first message and the second message also include identification information of the DTU 11.
In this embodiment, the identification information of DTU11 is used to uniquely identify a DTU 11. The DTU11 may add the identification information of the DTU11 in the message whose generated destination address is the IP address of the cloud server 2 and whose destination port number is the port number of the cloud server 2. In this way, the cloud server 2 may receive the identification information of the DTU 11. The subsequent first message and the second message also include identification information of the DTU11, so the intranet server 4 may also obtain the identification information of the DTU11, and further may determine the DTU11 providing the target data, which is convenient for data differentiation.
Alternatively, the identification information of the DTU11 may be address information of the DTU 11.
In addition, the DTU11 may add an identifier indicating a data flow direction to the message, where the identifier indicates transmission from the data acquisition portion 1 to the intranet server 4, and optionally, the identifier may be added between the target data and the header of the first message and the second message.
In one possible implementation, DTU11 may perform the following process in order to detect whether at least one meter is online:
the DTU11 is further configured to send a heartbeat message to the cloud server 2, where the heartbeat message is used to maintain and monitor an online status of the DTU11 in the mobile network.
In this embodiment, the DTU11 may also periodically send a heartbeat message to the cloud server 2, where the heartbeat message may be a heartbeat message that is edited in advance and then stored. The period of sending the heartbeat message by the DTU11 may be configured in advance in the DTU 11.
Because the DTU11 may periodically send heartbeat messages to the cloud server 2, when the sending is successful, it is determined that the DTU11 is in an online state in the mobile network, and when the sending is failed, it is determined that the DTU11 is in an offline state in the mobile network. This may enable DTU11 to be in use in the mobile network at all times, and therefore, may also be used to monitor the presence status of DTU11 in the mobile network.
Optionally, the DTU11 may further receive a feedback message returned by the cloud server 2 after receiving the heartbeat message, and the DTU11 does not receive the feedback message sent by the cloud server 2 in a continuous preset number of periods, and may determine that the cloud server 2 fails when determining that the state of the mobile network of the DTU is an online state. Here, the preset number may be stored in the DTU11 in advance, for example, the preset number is 2.
In one possible implementation, the relationship of the DTU11 to the at least one smart meter 12 is a master-slave relationship. Wherein, DTU11 is connected with at least one intelligent meter 12 through a Recommended Standard (RS) 485 bus, or DTU11 is connected with at least one intelligent meter 12 through an RS485 hub. The RS485 bus is a serial interface standard here.
The RS485 bus can be a group of 2-core cables or 4-core cables.
In this embodiment, the relationship of DTU11 to at least one smart meter 12 may be a master-slave relationship. The intelligent meters 12 are provided with RS485 bus communication interfaces and addresses, at least one intelligent meter 12 and the DTU11 are connected in parallel on the RS485 bus, or at least one intelligent meter 12 and the DTU11 are connected through an RS485 hub to form a star network structure. The DTU11 may bi-directionally communicate data with at least one smart meter 12 via the communication interface and address of the at least one smart meter 12. The two structures are both master-slave structures, and can realize data acquisition. Optionally, the communication interface of the RS485 bus is an RS485 interface. The RS485 interface may transmit data with the wireless mobile network interface of the DTU11 in a bidirectional transparent manner, specifically, the wireless mobile network interface may transmit data received from the cloud server 2 to the RS485 interface, and the RS485 interface may transmit data received from the smart meter 12 to the wireless mobile network interface.
In one possible implementation, the relationship of DTU11 to at least one smart meter 12 is a master-slave relationship. Wherein, DTU11 is connected with at least one intelligent instrument 12 through RS485 interface. The RS485 interface may transmit data in a two-way manner with the wireless mobile network interface of the DTU11, specifically, the DTU11 transmits the data received from the cloud server 2 to the RS485 interface of the DTU11 through the wireless mobile network interface, and the RS485 interface may transmit the data received from the smart meter 12 to the wireless mobile network interface.
Here, the wireless mobile network interface is an interface through which the wireless function of the DTU11 is implemented, through which the DTU11 communicates using a SIM card.
Optionally, the RS485 interface may also be a standard jack (RJ) 45 interface.
In this application embodiment, data acquisition and access system include data acquisition part, cloud ware, DMZ passageway and intranet server, and data acquisition part is located gathers the scene, and cloud ware is located the enterprise outside, and the intranet server is located inside the enterprise, and the DMZ passageway includes the DMZ server, and the cloud ware is used for: when the data acquisition condition is met, a data acquisition request is sent to the data acquisition part through the wireless network, target data sent by the data acquisition part through the wireless network is received, and a first message including the target data is sent to the DMZ server through address information of the DMZ server. And the DMZ server receives the first message and sends a second message comprising target data to the intranet server through the address information of the intranet server. Therefore, the target data are forwarded by the cloud server, pass through the DMZ channel and then enter the intranet server instead of directly transmitting external data to the intranet server, so that the enterprise can acquire production data of remote areas, the data acquired by the extranet are accessed into an intranet of the enterprise, and a data acquisition and access system is provided.
In addition, through the data acquisition and access system in the embodiment of the application, the problem that the petroleum production network mainly using optical fibers cannot comprehensively acquire production data is solved, the requirements of daily production and management on basic data are met, and the working efficiency of petroleum acquisition is improved.
Fig. 4 is a schematic structural diagram of a computer device according to an embodiment of the present disclosure, where the computer device 400 may be any one of the cloud server 2, the DMZ server 31, or the intranet server 4, and the computer device 400 may generate a relatively large difference due to different configurations or performances, and may include one or more processors (CPUs) 401 and one or more memories 402, where the memories 402 store at least one instruction, and the at least one instruction is loaded and executed by the processors 401 to implement the data access processing.
The present invention is not intended to be limited to the particular embodiments shown and described, but is to be accorded the widest scope consistent with the principles and novel features herein disclosed.

Claims (10)

1. The utility model provides a data acquisition and access system, its characterized in that is applied to oil field management, the system includes data acquisition part, cloud server, isolation zone DMZ passageway and intranet server, data acquisition part is located gathers the scene, cloud server is located the enterprise outside, intranet server is located the enterprise inside, the DMZ passageway includes the DMZ server, wherein:
the cloud server is configured to:
when the data acquisition condition is met, sending a data acquisition request to the data acquisition part through a wireless network;
receiving target data sent by the data acquisition part through the wireless network;
sending a first message comprising the target data to the DMZ server through the address information of the DMZ server;
the DMZ server is used for determining the address information of the intranet server according to the stored corresponding relation between the address information of the DMZ server and the address information of the intranet server, and sending a second message comprising the target data to the intranet server through the address information of the intranet server.
2. The system of claim 1, wherein said data acquisition portion comprises a Data Transmission Unit (DTU) and at least one smart meter; the DTU comprises a Subscriber Identity Module (SIM) card;
the DTU establishes communication connection with the at least one intelligent instrument;
the DTU is used for:
under the condition that the communication function of the DTU is activated by the SIM card, receiving the data acquisition request sent by the cloud server;
sending a data acquisition command to the at least one smart meter;
receiving the target data sent by the at least one intelligent meter;
and sending the target data to the cloud server by using the address information of the cloud server.
3. The system according to claim 2, wherein the first message and the second message further include identification information of the DTU;
the DTU is used for:
and under the condition that the communication function of the DTU is activated by the SIM card, sending the identification information of the DTU and the target data to the cloud server by using the address information of the cloud server.
4. The system according to claim 2 or 3, wherein the DTU is further configured to send a heartbeat message to the cloud server, and the heartbeat message is used to maintain and monitor an online status of the DTU in the mobile network.
5. The system of claim 2 or 3, wherein the relationship of the DTU to the at least one smart meter is a master-slave relationship;
the DTU is connected with the at least one intelligent instrument through an RS485 bus, or the DTU is connected with the at least one intelligent instrument through an RS485 concentrator.
6. The system according to any one of claims 1 to 3, wherein the cloud server is further configured to convert the target data into a preset format;
the cloud server is used for sending a first message including the target data in the preset format to the DMZ server.
7. The system according to any one of claims 1 to 3, wherein the intranet server is configured to store the received target data and send the target data to a data presentation server, and the data presentation server is configured to present the target data to a preset webpage.
8. The system according to any one of claims 1 to 3, wherein the intranet server is configured to store the received target data and display the target data to a preset webpage.
9. The system according to any one of claims 1 to 3, wherein the DMZ channel further comprises an intranet firewall and an extranet firewall;
the intranet firewall is used for receiving the second message sent by the DMZ server, carrying out illegal detection on the second message, and transmitting the second message to the intranet server after the illegal detection is passed;
the external network firewall is used for receiving the first message sent by the cloud server, carrying out illegal detection on the first message, and transmitting the first message to the DMZ server after the illegal detection is passed.
10. The system according to any one of claims 1 to 3, wherein the address information is an Internet Protocol (IP) address and port number.
CN202110017627.8A 2021-01-07 2021-01-07 Data acquisition and access system Pending CN114745398A (en)

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