CN105429871A - Embedded Web gateway and communication system based on interconnection of Wi-Fi and PROFIBUS-DP bus - Google Patents
Embedded Web gateway and communication system based on interconnection of Wi-Fi and PROFIBUS-DP bus Download PDFInfo
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- CN105429871A CN105429871A CN201510938764.XA CN201510938764A CN105429871A CN 105429871 A CN105429871 A CN 105429871A CN 201510938764 A CN201510938764 A CN 201510938764A CN 105429871 A CN105429871 A CN 105429871A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/66—Arrangements for connecting between networks having differing types of switching systems, e.g. gateways
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/02—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
- H04L67/025—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP] for remote control or remote monitoring of applications
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Abstract
The invention discloses an embedded Web gateway and communication system based on interconnection of Wi-Fi and a PROFIBUS-DP bus. According to the embedded Web gateway and communication system, two heterogeneous networks the Wi-Fi network and the PROFIBUS-DP bus are connected, and industrial field devices can be monitored through the Web browser of a wireless terminal (such as a tablet PC). The design module comprises a S5PV210 microprocessor module based on Cortex TM-A8 core, a RS-485 driver, a high-speed photoelectric coupler, a network isolation transformer and a wireless network adapter, wherein the S5PV210 microprocessor module is mainly composed of a S5PV210 microprocessor, a DDR2 RAM storage, an NAND FLASH storage, a USB interface, a serial port, a reset circuit and a power supply control. By using the embedded Web gateway and communication system based on interconnection of the Wi-Fi and the PROFIBUS-DP bus, related personnel can wirelessly monitor the devices and production operation conditions, regulate working conditions of the devices, and optimize the production process without working in a production site; and furthermore, the embedded Web gateway is low in cost, stable and reliable in performance, and convenient to popularize for use.
Description
Technical field
The invention belongs to industrial automation (industrial communication) field, relate to a kind of embedded Web gateway based on Wi-Fi and PROFIBUS-DP bus interconnection and communication system.
Background technology
At present, for the policer operation of shop equipment, mainly by being fixed on, the process control display floater that is connected with production equipment or display realize the administrative staff of most of factory.Therefore, constraint operating personnel must fixed in process of production in front of the display.And well can break away from this monitoring constraint by wireless mode of operation, as long as administrative staff just can carry out monitor and managment to the situation of production equipment there being the place of wireless network, enhance the flexibility of operation greatly.
PROFIBUS(ProcessFieldBus, Process FieldbusROFIBUS) monitoring of factory automation workshop level and the field bus technique of scene equipment level data communication and control can be used for, can realize the digital control and scene communication network of distributing that scene equipment level monitors to workshop level, wherein PROFIBUS-DP is the PROFIBUS standard being applicable to factory site equipment.Under Wi-Fi environment, factory management personnel can pass through mobile phone, and panel computer or notebook computer are opened Web page and monitored and the running status of manage production system and field apparatus and various parameter.Therefore related personnel need not be operated in a line of production scene can remote supervisory equipment and production operation situation, adjustment equipment working state, optimizes production process.The SSL security mechanism of this Embedded gateway can be encrypted the data in PROFIBUS-DP bus system transmitting procedure simultaneously, ensures the fail safe of transfer of data, prevents leakage of data.
Summary of the invention
The object of the invention is Wi-Fi network and PROFIBUS-DP fieldbus two kinds of heterogeneous networks to couple together, and realize the monitoring to industrial field device by wireless terminal.Company manager or user can by Wi-Fi network, use wireless client more convenient, efficiently reasonable disposition is carried out to the parameter of field apparatus.User also can select according to the type of the demand of oneself to wireless client.
For solving the problem, the present invention is achieved through the following technical solutions: a kind of embedded Web gateway based on Wi-Fi and PROFIBUS-DP bus interconnection and communication system, is characterized in that: comprise RS-485 driver, high-speed photoelectric coupler, S5PV210 microprocessor module, network isolation transformer and wireless network card based on CortexTM-A8 kernel form.PROFIBUS-DP bus in described embedded Web gateway and communication system and equipment thereof and RS-485 driver are electrically connected; And RS-485 driver and high-speed photoelectric coupler are electrically connected; High-speed photoelectric coupler is electrically connected with the S5PV210 microprocessor module based on CortexTM-A8 kernel again; Wherein S5PV210 microprocessor module is primarily of S5PV210 microprocessor, USB interface, DDR2RAM memory, reset circuit, power supply control, serial port unit and NANDFLASH memory composition, and USB interface, DDR2RAM memory, reset circuit, power supply control, serial port unit and NANDFLASH memory are electrically connected with central processing element S5PV210 microprocessor respectively; And be electrically connected based on the S5PV210 microprocessor module of CortexTM-A8 kernel and network isolation transformer; Network isolation transformer and wireless network card are electrically connected; Wireless network card and Wi-Fi network carry out wireless connections; Wi-Fi network and wireless terminal carry out wireless connections.
Above-mentioned a kind of embedded Web gateway based on Wi-Fi and PROFIBUS-DP bus interconnection and communication system, it is characterized in that: first systems soft ware has built the development platform of software, comprise the transplanting of (SuSE) Linux OS, the transplanting of Appweb server, the transplanting of database, Software for Design is based on the Web wireless client of B/S pattern simultaneously.
Above-mentioned a kind of embedded Web gateway based on Wi-Fi and PROFIBUS-DP bus interconnection and communication system, is characterized in that: the model that described RS-485 driver adopts is AQMD3608BLS.
Above-mentioned a kind of embedded Web gateway based on Wi-Fi and PROFIBUS-DP bus interconnection and communication system, is characterized in that: the model that described high-speed photoelectric coupler adopts is TLP116A.
Above-mentioned a kind of embedded Web gateway based on Wi-Fi and PROFIBUS-DP bus interconnection and communication system, it is characterized in that: what the described S5PV210 microprocessor module based on CortexTM-A8 kernel adopted is the S5PV210 microprocessor that Samsung produces is core, adds the CPU of peripheral USB interface, DDR2RAM memory, reset circuit, power supply control, NANDFLASH memory and serial port unit composition.
Above-mentioned a kind of embedded Web gateway based on Wi-Fi and PROFIBUS-DP bus interconnection and communication system, is characterized in that: what described network isolation transformer adopted is PSGLB network isolation transformer.
Above-mentioned a kind of embedded Web gateway based on Wi-Fi and PROFIBUS-DP bus interconnection and communication system, is characterized in that: the TP-LINKTL-WN823N network interface card of accessible Wi-Fi network that what described wireless network card adopted is.
Above-mentioned a kind of embedded Web gateway based on Wi-Fi and PROFIBUS-DP bus interconnection and communication system, is characterized in that: what adopted by the wireless terminal that Wi-Fi is connected with embedded Web gateway is to be connected the notebook computer of Wi-Fi, panel computer or mobile phone.
Above-mentioned a kind of embedded Web gateway based on Wi-Fi and PROFIBUS-DP bus interconnection and communication system, is characterized in that: what be connected by RS-485 with embedded Web gateway is PROFIBUS-DP bus, carry SIEMENS PLC S7-300 in bus.
Above-mentioned a kind of build mainly to comprise based on the embedded Web gateway of Wi-Fi and PROFIBUS-DP bus interconnection and the software platform of communication system build system gateway Linux environment; Transplant Appweb server; Transplant SSL (SecureSocketsLayer SSL) security protocol; Transplant embedded database; Build Web technological accumulation and inheritance.
User's Web browser operation principle of the above-mentioned Web embedded gateway based on Wi-Fi and PROFIBUS-DP bus is: after inputting the IP address of gateway in the Web browser of user at wireless client, and browser page can user's login interface of writing of automatic spring.
The invention has the beneficial effects as follows: under Wi-Fi environment, wireless terminal (notebook computer or mobile phone) and embedded Web gateway realize being connected on the net, and embedded Web gateway is connected to relevant PROFIBUS-DP equipment (PLC) again.User can access Wi-Fi network by wireless terminal and carry out convenient and swift, wireless monitor in real time by embedded Web gateway to the equipment in PROFIBUS-DP bus.
The invention has the advantages that:
1) the present invention can use wireless terminal under Wi-Fi environment, to access PROFIBUS-DP bus by Web browser very easily, by embedded Web gateway and then the effective connection realizing Wi-Fi and PROFIBUS-DP bus system, take full advantage of existing resource, effectively expand flexibility and the distance of monitoring, make the monitoring of PROFIBUS-DP equipment more flexible, various, more convenient to operate, hommization.
2) be interface control system by Web browser, easily wireless real-time monitoring and management are carried out to the equipment on PROFIBUS-DP fieldbus, this is also the inexorable trend of wireless network industry application development, has complied with the trend of industrial automation development, has been conducive to further genralrlization.
3) this embedded Web gateway, can provide certain safety guarantee to system, take resource low simultaneously, be with a wide range of applications.
Accompanying drawing explanation
By reference to the content below in conjunction with the description of the drawings and claims, and understand more comprehensively along with to of the present invention, other object of the present invention and result will be understood and easy to understand more.In the accompanying drawings:
Fig. 1 is the hardware overall structure schematic diagram of embedded Web gateway and communication system thereof in the present invention;
Fig. 2 be in the present invention embedded Web gateway CPU based on the S5PV210 microprocessor module hardware block diagram of CortexTM-A8 kernel;
Fig. 3 is the software overall structure schematic diagram of embedded Web gateway in the present invention.
Wherein: 1-RS-485 driver, 2-high-speed photoelectric coupler, 3-based on the S5PV210 microprocessor module of CortexTM-A8 kernel, 4-network isolation transformer, 5-wireless network card, 6-S5PV210 microprocessor, 7-USB interface, 8-DDR2RAM memory, 9-reset circuit, 10-power supply control, 11-serial port unit, 12-NANDFLASH memory.
Specific embodiments
In order to deepen the understanding of the present invention, below in conjunction with embodiment, the invention will be further described, and this embodiment only for explaining the present invention, does not form limiting the scope of the present invention.
As Fig. 1, shown in 2, based on embedded Web gateway and the communication system of Wi-Fi and PROFIBUS-DP bus interconnection, it is characterized in that: comprise RS-485 driver 1, high-speed photoelectric coupler 2, S5PV210 microprocessor module 3, network isolation transformer 4 and wireless network card 5 based on CortexTM-A8 kernel form.PROFIBUS-DP bus in described embedded Web gateway and communication system and equipment thereof and RS-485 driver 1 are electrically connected; And RS-485 driver 1 and high-speed photoelectric coupler 2 are electrically connected; High-speed photoelectric coupler 2 is electrically connected with the S5PV210 microprocessor module 3 based on CortexTM-A8 kernel again; Wherein S5PV210 microprocessor module 3 forms primarily of S5PV210 microprocessor 6, USB interface 7, DDR2RAM memory 8, reset circuit 9, power supply control 10, serial port unit 11 and NANDFLASH memory 12, and USB interface 7, DDR2RAM memory 8, reset circuit 9, power supply control 10, serial port unit 11 and NANDFLASH memory 12 are electrically connected with central processing element S5PV210 microprocessor 6 respectively; And be electrically connected with network isolation transformer 4 based on the S5PV210 microprocessor module 3 of CortexTM-A8 kernel; Network isolation transformer 4 and wireless network card 5 are electrically connected; Wireless network card 5 and Wi-Fi network carry out wireless connections; Wi-Fi network and wireless terminal carry out wireless connections.
Embedded Web gateway server software system is made up of four large functional modules as shown in Figure 3: (a) HTTP engine; (b) security module; (c) configuration module; (d) application interface module.The equipment query that wherein HTTP engine response wireless client is sent controls request; Security module is responsible for the security control of system, and to user name, password and transmitting data information are encrypted protection; Configuration module can make system manager arrange the relevant parameter of Web server; Application interface module realizes exchanges data that is outside and built-in applied system.
The use step of a kind of embedded Web gateway based on Wi-Fi and PROFIBUS-DP bus interconnection from the above mentioned and communication system cut-in method, Apparatus and system is as follows:
A). system gateway powers on and starts working, and start up system server capability;
B). open Web browser at wireless terminal, and input the login interface of gateway network address display system;
C). in login interface, input corresponding username and password, after system database calibration information, show corresponding interface, and according to the authority of oneself, corresponding operating is carried out to PROFIBUS-DP equipment.
By concrete transmission principle described above and program process be: access Wi-Fi using smart mobile phone or notebook computer as wireless terminal, by the Web browser access radio network gateway on mobile phone or notebook computer, under Wi-Fi environment, wireless terminal is connected to the TP-LINKTL-WN823N wireless network card 5 in embedded Web gateway.
Further process is: send PSGLB network isolation transformer 4 to after modulation /demodulation process after wireless network card 5 receives wireless signal.
Further process is: network isolation transformer 4 is sending data to S5PV210 microprocessor 3.
Further process is: Wi-Fi data are carried out protocol conversion and become PROFIBUS-DP data by S5PV210 microprocessor 3 and ancillary equipment USB interface 7, DDR2RAM memory 8, reset circuit 9, power supply control 10, serial port unit 11 and NANDFLASH memory 12 co-treatment, and send TLP116A high-speed photoelectric coupler 2 to.
Further process is: convert data signal is sent to the RS-485 driver 1 of AQMD3608BLS model by high-speed photoelectric coupler 2.
Further process is: data are sent in PROFIBUS-DP bus through RS-485 interface by RS-485 driver 1.
Further process is: data are sent on the field apparatus SIEMENS PLC S7-300 of carry in bus by PROFIBUS-DP bus.
Further process is: SIEMENS PLC S7-300 finally reacts to the data that wireless terminal sends.
In like manner, what field apparatus also can be real-time is sent to wireless terminal by status data by above-mentioned inverse process.Namely the data interaction being completed PROFIBUS-DP equipment and wireless client both sides by above step is transmitted.Well can break away from traditional monitoring constraint by wireless mode of operation, as long as administrative staff just can carry out monitor and managment to the situation of production equipment there being the place of wireless network, enhance the flexibility of operation greatly.
Claims (9)
1. based on embedded Web gateway and the communication system of Wi-Fi and PROFIBUS-DP bus interconnection, it is characterized in that: comprise RS-485 driver (1), high-speed photoelectric coupler (2), S5PV210 microprocessor module (3), network isolation transformer (4) and wireless network card (5) based on CortexTM-A8 kernel form; PROFIBUS-DP bus in described embedded Web gateway and communication system and equipment thereof and RS-485 driver (1) are electrically connected; And RS-485 driver (1) and high-speed photoelectric coupler (2) are electrically connected; High-speed photoelectric coupler (2) is electrically connected with the S5PV210 microprocessor module (3) based on CortexTM-A8 kernel again; Wherein S5PV210 microprocessor module (3) is primarily of S5PV210 microprocessor (6), USB interface (7), DDR2RAM memory (8), reset circuit (9), power supply control (10), serial port unit (11) and NANDFLASH memory (12) composition, and USB interface (7), DDR2RAM memory (8), reset circuit (9), power supply control (10), serial port unit (11) and NANDFLASH memory (12) are electrically connected with central processing element S5PV210 microprocessor (6) respectively; And be electrically connected with network isolation transformer (4) based on the S5PV210 microprocessor module (3) of CortexTM-A8 kernel; Network isolation transformer (4) and wireless network card (5) are electrically connected; Wireless network card (5) and Wi-Fi network carry out wireless connections; Wi-Fi network and wireless terminal carry out wireless connections.
2. a kind of embedded Web gateway based on Wi-Fi and PROFIBUS-DP bus interconnection according to claim 1 and communication system, is characterized in that: the model that RS-485 driver (1) adopts is AQMD3608BLS.
3. a kind of embedded Web gateway based on Wi-Fi and PROFIBUS-DP bus interconnection according to claim 1 and communication system, is characterized in that: the model that high-speed photoelectric coupler (2) adopts is TLP116A.
4. a kind of embedded Web gateway based on Wi-Fi and PROFIBUS-DP bus interconnection according to claim 1 and communication system, is characterized in that: what the S5PV210 microprocessor module based on CortexTM-A8 kernel adopted is the S5PV210 microprocessor module that Samsung produces; Wherein S5PV210 microprocessor module (3) forms primarily of S5PV210 microprocessor (6), USB interface (7), DDR2RAM memory (8), reset circuit (9), power supply control (10), serial port unit (11) and NANDFLASH memory (12);
Wherein DDR2RAM memory (8) used is made up of 4 pieces of SEC407BCF7K4T1G084QG; NANDFLASH memory (12) used for 512MSLCNANDFLASH model be the SAMSUNG407K9F4G08U0ESCB0 of Samsung; Power supply control (10) used is supplied to gateway circuit 5V voltage; USB interface (7) and serial port unit (11) are all general structure models.
5. a kind of embedded Web gateway based on Wi-Fi and PROFIBUS-DP bus interconnection according to claim 1 and communication system, is characterized in that: what network isolation transformer (4) adopted is PSGLB network isolation transformer.
6. a kind of embedded Web gateway based on Wi-Fi and PROFIBUS-DP bus interconnection according to claim 1 and communication system, is characterized in that: the EP-N8508GS high-speed radio network interface card based on 802.11n of accessible Wi-Fi network that what wireless network card (5) adopted is.
7. a kind of embedded Web gateway based on Wi-Fi and PROFIBUS-DP bus interconnection according to claim 1 and communication system, is characterized in that: what adopted by the wireless terminal that Wi-Fi is connected with Web embedded gateway is to be connected the notebook computer of Wi-Fi, panel computer or mobile phone.
8. a kind of embedded Web gateway based on Wi-Fi and PROFIBUS-DP bus interconnection according to claim 1 and communication system, it is characterized in that: what be connected by RS-485 with Web embedded gateway is PROFIBUS-DP bus, carry SIEMENS PLC S7-300 in bus.
9. a kind of embedded Web gateway based on Wi-Fi and PROFIBUS-DP bus interconnection according to claim 1 and communication system, it is characterized in that: under Wi-Fi environment, wireless terminal (notebook computer or mobile phone) and Web embedded gateway realize being connected on the net, and embedded Web gateway is connected to relevant PROFIBUS-DP slave station (PLC) again.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510938764.XA CN105429871A (en) | 2015-12-16 | 2015-12-16 | Embedded Web gateway and communication system based on interconnection of Wi-Fi and PROFIBUS-DP bus |
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| CN201510938764.XA CN105429871A (en) | 2015-12-16 | 2015-12-16 | Embedded Web gateway and communication system based on interconnection of Wi-Fi and PROFIBUS-DP bus |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107196853A (en) * | 2017-07-11 | 2017-09-22 | 吉林大学 | Embedded gateway based on 4G and FlexRay buses |
| CN109539379A (en) * | 2018-11-22 | 2019-03-29 | 天津光电通信技术有限公司 | A kind of remote data monitoring device of heating plant |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107196853A (en) * | 2017-07-11 | 2017-09-22 | 吉林大学 | Embedded gateway based on 4G and FlexRay buses |
| CN109539379A (en) * | 2018-11-22 | 2019-03-29 | 天津光电通信技术有限公司 | A kind of remote data monitoring device of heating plant |
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Application publication date: 20160323 |