CN105068488A - Intelligent communication controller applicable to a variety of communication interfaces and control method - Google Patents
Intelligent communication controller applicable to a variety of communication interfaces and control method Download PDFInfo
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- CN105068488A CN105068488A CN201510606455.2A CN201510606455A CN105068488A CN 105068488 A CN105068488 A CN 105068488A CN 201510606455 A CN201510606455 A CN 201510606455A CN 105068488 A CN105068488 A CN 105068488A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/25—Pc structure of the system
- G05B2219/25314—Modular structure, modules
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Abstract
The invention discloses an intelligent communication controller applicable to a variety of communication interfaces and a control method. The controller comprises a main control board, a baseboard, a communication conversion board, a panel, and a power board. The baseboard is equipped with multiple LPC1754 chips. Each LPC1754 chip has four independent serial ports, wherein two serial ports are connected with refueling equipment through the communication conversion board for data interaction, and the other two serial ports are connected with a gas station management control system after RS232 level conversion. The LPC1754 chips are connected to a CAN bus of the baseboard. The main control board is connected with external equipment through an LAN network interface and an RS232 interface. The main control board and the baseboard are connected by a CAN bus. The communication conversion board of the intelligent communication controller can be compatible with common refueling equipment communication interfaces (current loop and 485) on the market. Third-party refueling equipment or background software can be added conveniently and simply. Accessed refueling equipment can be remotely monitored and managed through the network.
Description
Technical field
The present invention relates to the research field of fuel charger, particularly a kind of Intelligent communication controller and control method being applicable to various communication interfaces.
Background technology
The existing fuel-servicing equipment that adds gets more and more, and equipment provides producer numerous, the standard that the communication interaction of each equipment is ununified again, therefore, needs a intelligentized communication controller, meets growing petrol station demand.Be the signals such as electric current loop or 485 are directly changed into 232 signals to be connected to realize fuel charger with petrol station management control system in prior art, but there is following shortcoming:
1, compatible bad, due to fuel charger communication interface disunity, different oil machines needs different controllers;
2, function singleness, third party device cannot access;
3, transmission range is short, cannot realize the telemanagement of fuel-servicing equipment and data.
Summary of the invention
Fundamental purpose of the present invention is that the shortcoming overcoming prior art is with not enough, provides a kind of Intelligent communication controller being applicable to various communication interfaces.
The second object of the present invention is to provide a kind of above-mentioned control method being applicable to the Intelligent communication controller of various communication interfaces
In order to reach above-mentioned first object, the present invention is by the following technical solutions: a kind of Intelligent communication controller being applicable to various communication interfaces, it is characterized in that, comprise master control board, base plate, communication change-over panel, panel and power panel, base plate comprises multi-disc from processor LPC1754 chip, every sheet LPC1754 chip has 4 tunnel independence serial ports, wherein 2 road serial ports to be connected with fuel-servicing equipment by communication change-over panel and to carry out data interaction, another 2 tunnels are connected with petrol station management control system by after RS232 level conversion, multi-disc LPC1754 chip is all connected in the CAN of base plate, master control board is connected with external unit by lan network interface, RS232 interface, is connected between master control board with base plate by CAN.
Preferably, described master control board is embedded in master control borad software submodules, and described master control borad software submodules comprises:
CAN data processing module: for the process mutual with the CAN communication of base plate, the fuel-servicing equipment data uploaded by base plate are classified, be distributed to corresponding software processing module by message queue to process, be responsible for the control command of fuel-servicing equipment to send to LPC1754 chip corresponding on base plate simultaneously;
Data memory module: for store and management fuel-servicing equipment data, after confirmation fuel-servicing equipment data are by the correct reception of external unit refuelling station vestibular equipment centralized management control system (hereinafter referred to as middle control backstage) and process, delete corresponding fuel-servicing equipment data;
System configuration module: for configuring and preserve the running parameter controlling backstage from processor LPC1754 chip, master control board and external unit of base plate; Wherein base plate comprises device numbering corresponding to base plate each LPC1754 chip from the running parameter of processor LPC1754 chip; The parameter of master control board comprises the IP address of master control board, gateway and subnet mask, and the running parameter controlling backstage in external unit comprises in external unit the IP address and network communication port of controlling backstage;
Abnormality warnings processing module: for abnormality processing and the acousto-optic controlling alarm of Intelligent communication controller;
Network monitoring module: be connected for the network created with control backstage in external unit, and monitoring network communication state; When network communication is interrupted, notice abnormality warnings processing module carries out abnormality processing, and automatically attempts reconnecting;
And middle control back-end data processing module: for the treatment of with external unit in control the associated communication packet on backstage, be responsible for the packet received to classify, be distributed to corresponding software processing module through message queue and process; Be responsible for the data encapsulation of fuel-servicing equipment to become network packet simultaneously, be sent in external unit through network interface and control backstage.
Preferably, described base plate is provided with 8 LPC1754 chips.
Preferably, described master control board adopts LPC1766 microprocessor, and described LPC1766 microprocessor comprises the general purpose I/O pin of the FLASH memory of 512KB, 64KB data-carrier store, ethernet mac, the general dma controller of 8 passages, 2 CAN passages, 4 UART serial ports passages and 70.
Preferably, described communication change-over panel comprises RS232/RS485 level transferring chip.
Preferably, described external unit is middle control backstage, fuel charger or tank gage.
Preferably, described panel is provided with the communication signal pilot lamp be connected with master control board and alarm.
In order to reach above-mentioned second object, the present invention by the following technical solutions: a kind of control method being applicable to the Intelligent communication controller of various communication interfaces, comprises the steps:
Fuel-servicing equipment communication signal by enter after communication change-over panel base plate from processor LPC1754 chip;
Judge after LPC1754 chip receives signals whether signal is master control board desired signal;
If not, then LPC1754 chip is directly sent to petrol station management control system by serial ports;
If so, then first LPC1754 chip is sent to master control board by CAN signal, then this signal is sent to petrol station management control system by serial ports;
After master control board Received signal strength, be sent to external unit by lan network interface;
Petrol station management control system send signal by serial ports enter base plate from processor LPC1754 chip;
Convert current signal to by communication change-over panel after LPC1754 chip receives signals and send fuel-servicing equipment to, control fuel-servicing equipment process and work accordingly.
Preferably, master control board is embedded in master control borad software submodules, and master control borad software submodules comprises CAN data processing module, data memory module, system configuration module, abnormality warnings processing module, network monitoring module and middle control back-end data processing module;
In master control board, process is carried out to data as follows:
The running parameter controlling backstage from processor LPC1754 chip, master control board and external unit of system configuration module configuration base plate;
Network monitoring module creates master control board and is connected with the network of external unit, and monitoring network communication state, when network communication is interrupted, notice abnormality warnings processing module carries out abnormality processing, and automatically attempts reconnecting;
CAN data processing module carries out interactive communication by CAN and base plate from processor LPC1754 chip, by classifying from processor LPC1754 chip reception fuel-servicing equipment data from base plate, be then distributed to middle control back-end data processing module by message queue;
The data encapsulation of the fuel-servicing equipment received is become network packet by middle control back-end data processing module, is sent in external unit and controls backstage; And received in external unit the data controlled backstage and send by middle control back-end data processing module, the packet received is classified, is distributed to CAN data processing module through message queue;
After CAN data processing module receives the data of middle control back-end data processing module transmission, by CAN send to base plate from processor LPC1754 chip, the fuel-servicing equipment control command in master control board sent on base plate corresponding to processor LPC1754 chip by CAN simultaneously;
Data memory module store and management fuel-servicing equipment data, and after confirmation fuel-servicing equipment data are correctly received by peripheral equipment control backstage and process, delete corresponding data;
Abnormality warnings processing module carries out abnormality processing and acousto-optic controlling alarm when master control board occurs abnormal.
Preferably, the base plate of system configuration module configuration comprises device numbering corresponding to base plate each LPC1754 chip from the running parameter of processor LPC1754 chip; The parameter of master control board of system configuration module configuration comprises the IP address of master control board, gateway and subnet mask, and the running parameter controlling backstage in the external unit of system configuration module configuration comprises in external unit the IP address and network communication port of controlling backstage.
Compared with prior art, tool has the following advantages and beneficial effect in the present invention:
1, communication change-over panel of the present invention can the common fuel-servicing equipment communication interface (electric current loop and 485) in compatible market, has used the TCP/IP network interface that CAN technology master control borad supports 10M, also have 4 RS232 interfaces in system; Base plate has 32 serial ports, can connect the data interaction of No. 16 fuel-servicing equipment communication interfaces and petrol station management control system, if on-the-spot fuel-servicing equipment is more than 16 tunnels, CAN interconnection polylith base plate can be adopted to realize.
2, the present invention can facilitate, increase third party's fuel-servicing equipment or daemon software simply.
3, by technical scheme of the present invention, managerial personnel can carry out Distant supervision and control to the fuel-servicing equipment of access by network.
4, the present invention carries out unified management to multiple access devices of multiple petrol station by network simultaneously, effectively reduces handling cost.
Accompanying drawing explanation
Fig. 1 is the topology diagram of filling station system of the present invention;
Fig. 2 is the structural representation of Intelligent communication controller of the present invention;
Fig. 3 is LPC1766 schematic diagram of the present invention;
Fig. 4 is the structured flowchart of master control board software submodules of the present invention;
Fig. 5 is LPC1754 schematic diagram of the present invention;
Fig. 6 is base plate software flow pattern of the present invention.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
Embodiment
As shown in Figure 1 and Figure 2, the Intelligent communication controller 1 being applicable to various communication interfaces of the present embodiment, comprise master control board, base plate, communication change-over panel, panel and power panel, base plate there is multi-disc LPC1754 chip, every sheet LPC1754 chip has 4 tunnel independence serial ports, wherein 2 road serial ports to be connected with fuel-servicing equipment 2 by communication change-over panel and to carry out data interaction, another 2 tunnels are connected with petrol station management control system (managing and control system) 3 by after RS232 level conversion, and multi-disc LPC1754 chip is all connected in the CAN of base plate; Master control board is connected with external unit by lan network interface, RS232 interface, is connected between master control board with base plate by CAN.Middle control backstage 4, tank gage 5 and fuel charger is comprised by the external unit that lan network interface or RS232 interface are connected in the present embodiment with master control borad.
In the present embodiment, master control board is embedded in master control borad software submodules, and as shown in Figure 4, master control borad software submodules comprises:
CAN data processing module: for the process mutual with the CAN communication of base plate, the fuel-servicing equipment data uploaded by base plate are classified, be distributed to corresponding software processing module by message queue to process, as oil-filling data being distributed to middle control back-end data processing module, middle control backstage is sent to by network after middle control back-end data processing module is repacked, each LCP1754 chip of base plate is connected petrol station facility information and is distributed to data memory module, for receive middle control backstage issue equipment control command time, search the corresponding LPC1754 chip corresponding to petrol station equipment.CAN data processing module is responsible for the control command of fuel-servicing equipment to send to LPC1754 chip corresponding on base plate simultaneously;
Data memory module: for store and management fuel-servicing equipment data, after confirming that controlling backstage during fuel-servicing equipment data are by external unit correctly receives and process, deletes corresponding fuel-servicing equipment data, to ensure continuity and the integrality of petrol station transaction record;
System configuration module: for configuring and preserve the running parameter controlling backstage from processor LPC1754 chip, master control board and external unit of base plate; Wherein base plate comprises device numbering corresponding to base plate each LPC1754 chip from the running parameter of processor LPC1754 chip; The parameter of master control board comprises the IP address of master control board, gateway and subnet mask, and the running parameter controlling backstage in external unit comprises in external unit the IP address and network communication port of controlling backstage;
Abnormality warnings processing module: for abnormality processing and the acousto-optic controlling alarm of Intelligent communication controller;
Network monitoring module: be connected for the network created with control backstage in external unit, and monitoring network communication state; When network communication is interrupted, notice abnormality warnings processing module carries out abnormality processing, and automatically attempts reconnecting;
And middle control back-end data processing module: for the treatment of with external unit in control the associated communication packet on backstage, the packet received is responsible for classify, be distributed to corresponding software processing module through message queue to process, as the control message of petrol station equipment is distributed to CAN data processing module, LPC1754 chip corresponding to base plate is sent to by CAN, the petrol station equipment of specifying is transmitted to by it, by the operation relevant to transaction data as read, the operation informations such as storage and deletion are distributed to data memory module, carry out the reading of respective transaction data, storage or deletion action etc., control back-end data processing module to be simultaneously responsible for the data encapsulation of fuel-servicing equipment to become network packet, be sent in external unit through network interface and control backstage.
Described base plate is provided with 8 LPC1754 chips.
The present embodiment panel is provided with the communication signal pilot lamp and alarm that are connected with master control board.When Intelligent communication controller occurs abnormal, the alarm work on master control board control panel.
As shown in Figure 3, master control board hardware have employed the LPC1766 microprocessor of grace intelligence Pu (NXP) company based on ARMCortex-M3 kernel.Its operating frequency can reach 100MHz, be applicable to the Embedded Application of the integrated and low-power consumption of processing requirements height, and have the FLASH memory of 512KB, 64KB data-carrier store, ethernet mac, the general dma controller of 8 passages, 2 CAN passages, 4 UART serial ports passages and nearly abundant peripheral component and the interface such as general purpose I/O pin of 70.
The present embodiment master control borad software employs RT-Thread embedded real-time operating system.RT-Thread real time operating system is not only a efficient, stable real-time kernel, also be the software platform of a set of embedded system, contain the kernel of preemptive type, small and exquisite and the file system had nothing to do with bottom specific implementation and light-duty ICP/IP protocol stack.
Based on RT-Thread real time operating system, master control borad software is divided into the software process submodule of 6 difference in functionalitys on the whole.Utilize the property seized of real time operating system, concurrency to realize the functions such as efficient, the timely process of data interaction.Fuel-servicing equipment data are (as oil machine data, tank gage data etc.) by CAN interface, through CAN data processing module analyzing and processing, after fueling transaction data are preserved by data memory module, be sent to middle control back-end data processing module by message queue, and be sent to network by middle control back-end data processing module.In like manner, data (mainly control back-end data) on network are after middle control back-end data processing module Treatment Analysis, use message queue to send out according to parameters different in packet to be distributed to different processing modules, to process accordingly and preserve.Meanwhile, network detection module can the connection state of real-time Sampling network, and if there is Network Abnormal (as abnormal conditions such as network disconnections), notice abnormality alarming processing module carries out light, buzzer alert.
Communication change-over panel, communication change-over panel comprises RS232/RS485 level transferring chip, and wherein 232 conversion chips are MAX232ESE, and 485 chips changed are MAX485ESA.Communication change-over panel can the common fuel-servicing equipment communication interface (electric current loop and 485) in compatible market, has used the TCP/IP network interface that CAN technology master control borad supports 10M, also have 4 RS232 interfaces in system; Base plate has 32 serial ports, can connect the data interaction of No. 16 fuel-servicing equipment communication interfaces and petrol station management control system, if on-the-spot fuel-servicing equipment is more than 16 tunnels, can be realized by the CAN polylith base plate that interconnects.
As shown in Figure 5, the intelligent communication interface controller of the present embodiment has the base plate chip of 4 tunnel independence serial ports, the data interaction of maximum support two-way fuel-servicing equipment communication interface and petrol station management control system.Therefore to the access (fuel charger and petrol station management control system) of 4 tunnel independence serial ports define different, also the processing mode determining four serial ports received data is different, UART0 and the UART1 of each chip of the present embodiment connects fuel-servicing equipment, and UART2 and UART3 connects petrol station management control system.
The data interaction of Intelligent communication controller maximum support No. 32 fuel-servicing equipment communication interface and petrol station management control system, therefore just needs 16 LPC1754 chips to realize 32 road Intelligent communication controllers.In order to the transmission of effective implemention data, between Intelligent communication controller base plate and master control board, communication employs CAN.
The feature of CAN:
(1) communication mode is flexible.On network any node all can at any time initiatively send information to other nodes.
(2) CAN only just can need realize point-to-point by message filtering, and several modes such as 1 point-to-multipoint and overall situation broadcast transmit reception, without the need to scheduling.
(3) the direct communication distance of CAN can reach 10KM (5Kb/s) farthest, and traffic rate reaches as high as 1Mb/s (40M).
(4) 110 can be reached before the interstitial content on CAN;
(5) CAN communication adopts short frame format, and the transmission time is short, by force anti-interference, fabulous error checking effect, and the maximum 8B of every frame is enough to meet control overflow, can not take long bus time, real-time.
(6) the every frame of CAN has CRC check and other error checking measures.
As shown in Figure 6, in order to ensure the stability that data are transmitted and accuracy, base plate needs to judge data type after receiving fuel-servicing equipment data, if transaction data, just petrol station management control system can be sent to after then first ensureing successfully to be transmitted to master control borad, if data type is nontransaction data, be then directly sent to petrol station management control system.After base plate receives petrol station management control system data by serial ports (UART2 or UART3), be then directly forwarded to fuel charger by serial ports (UART0 or UART1).
The present embodiment is applicable to the control method of the Intelligent communication controller of various communication interfaces, comprise oil machine initiative refuel time control method and oil machine passive refuel time control method:
When wherein oil machine is initiatively refueled, namely when the signal from processor LPC1754 chip judgement reception of base plate is from fuel-servicing equipment, the control method step of Intelligent communication controller is as follows:
Fuel-servicing equipment communication signal by enter after communication change-over panel base plate from processor LPC1754 chip;
Judge after LPC1754 chip receives signals whether signal is master control board desired signal; Master control board desired signal comprises transaction data, real-time status data.
If not, then LPC1754 chip is directly sent to petrol station management control system by serial ports;
If so, then first LPC1754 chip is sent to master control board primary processor LPC1766 chip by CAN signal, then this signal is sent to petrol station management control system by serial ports;
After LPC1766 chip receives signals, be sent to external unit by lan network interface.
Wherein during the passive oiling of oil machine, namely when base plate judge that the signal that receives is from petrol station management control system from processor LPC1754 chip time, the control method step of Intelligent communication controller is as follows:
Petrol station management control system send signal by serial ports enter base plate from processor LPC1754 chip;
Convert current signal to by communication change-over panel after LPC1754 chip receives signals and send fuel-servicing equipment to, control fuel-servicing equipment process and work accordingly.
In master control board, process is carried out to data in the present embodiment as follows:
The running parameter controlling backstage from processor LPC1754 chip, master control board and external unit of system configuration module configuration base plate; In the present embodiment, the base plate of system configuration module configuration comprises device numbering corresponding to base plate each LPC1754 chip from the running parameter of processor LPC1754 chip; The parameter of master control board of system configuration module configuration comprises the IP address of master control board, gateway and subnet mask, and the running parameter controlling backstage in the external unit of system configuration module configuration comprises in external unit the IP address and network communication port of controlling backstage.
Network monitoring module creates master control board and is connected with the network of external unit, and monitoring network communication state, when network communication is interrupted, notice abnormality warnings processing module carries out abnormality processing, and automatically attempts reconnecting.
CAN data processing module carries out interactive communication by CAN and base plate from processor LPC1754 chip, by classifying from processor LPC1754 chip reception fuel-servicing equipment data from base plate, be then distributed to middle control back-end data processing module by message queue.
The data encapsulation of the fuel-servicing equipment received is become network packet by middle control back-end data processing module, is sent in external unit and controls backstage; And received in external unit the data controlled backstage and send by middle control back-end data processing module, the packet received is classified, is distributed to CAN data processing module through message queue.
After CAN data processing module receives the data of middle control back-end data processing module transmission, by CAN send to base plate from processor LPC1754 chip, the fuel-servicing equipment control command in master control board sent on base plate corresponding to processor LPC1754 chip by CAN simultaneously.
Data memory module store and management fuel-servicing equipment data, and after confirmation fuel-servicing equipment data are correctly received by peripheral equipment control backstage and process, delete corresponding data.
Abnormality warnings processing module carries out abnormality processing and acousto-optic controlling alarm when master control board occurs abnormal.
Above-described embodiment is the present invention's preferably embodiment; but embodiments of the present invention are not restricted to the described embodiments; change, the modification done under other any does not deviate from Spirit Essence of the present invention and principle, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (10)
1. one kind is applicable to the Intelligent communication controller of various communication interfaces, it is characterized in that, comprise master control board, base plate, communication change-over panel, panel and power panel, base plate comprises multi-disc from processor LPC1754 chip, every sheet LPC1754 chip has 4 tunnel independence serial ports, wherein 2 road serial ports to be connected with fuel-servicing equipment by communication change-over panel and to carry out data interaction, another 2 tunnels are by being connected with petrol station management control system after RS232 level conversion, and multi-disc LPC1754 chip is all connected in the CAN of base plate; Master control board is connected with external unit by lan network interface, RS232 interface, is connected between master control board with base plate by CAN.
2. the Intelligent communication controller being applicable to various communication interfaces according to claim 1, is characterized in that, described master control board is embedded in master control borad software submodules, and described master control borad software submodules comprises:
CAN data processing module: for the process mutual with the CAN communication of base plate, the fuel-servicing equipment data uploaded by base plate are classified, be distributed to corresponding software processing module by message queue to process, be responsible for the control command of fuel-servicing equipment to send to LPC1754 chip corresponding on base plate simultaneously;
Data memory module: for store and management fuel-servicing equipment data, after confirming that controlling backstage during fuel-servicing equipment data are by external unit correctly receives and process, deletes corresponding fuel-servicing equipment data;
System configuration module: for configuring and preserve the running parameter controlling backstage from processor LPC1754 chip, master control board and external unit of base plate; Wherein base plate comprises device numbering corresponding to base plate each LPC1754 chip from the running parameter of processor LPC1754 chip; The parameter of master control board comprises the IP address of master control board, gateway and subnet mask, and the running parameter controlling backstage in external unit comprises in external unit the IP address and network communication port of controlling backstage;
Abnormality warnings processing module: for abnormality processing and the acousto-optic controlling alarm of Intelligent communication controller;
Network monitoring module: be connected for the network created with control backstage in external unit, and monitoring network communication state; When network communication is interrupted, notice abnormality warnings processing module carries out abnormality processing, and automatically attempts reconnecting;
And middle control back-end data processing module: for the treatment of with external unit in control the associated communication packet on backstage, be responsible for the packet received to classify, be distributed to corresponding software processing module through message queue and process; Be responsible for the data encapsulation of fuel-servicing equipment to become network packet simultaneously, be sent in external unit through network interface and control backstage.
3. the Intelligent communication controller being applicable to various communication interfaces according to claim 1, is characterized in that, described base plate is provided with 8 LPC1754 chips.
4. the Intelligent communication controller being applicable to various communication interfaces according to claim 1, it is characterized in that, described master control board adopts LPC1766 microprocessor, and described LPC1766 microprocessor comprises the general purpose I/O pin of the FLASH memory of 512KB, 64KB data-carrier store, ethernet mac, the general dma controller of 8 passages, 2 CAN passages, 4 UART serial ports passages and 70.
5. the Intelligent communication controller being applicable to various communication interfaces according to claim 1, is characterized in that, described communication change-over panel comprises RS232/RS485 level transferring chip.
6. the Intelligent communication controller being applicable to various communication interfaces according to claim 1, is characterized in that, described external unit is middle control backstage, fuel charger or tank gage.
7. the Intelligent communication controller being applicable to various communication interfaces according to claim 1, is characterized in that, described panel is provided with the communication signal pilot lamp and alarm that are connected with master control board.
8. the control method being applicable to the Intelligent communication controller of various communication interfaces according to claim 1, is characterized in that, comprise the steps:
Fuel-servicing equipment communication signal by enter after communication change-over panel base plate from processor LPC1754 chip;
Judge after LPC1754 chip receives signals whether signal is master control board desired signal;
If not, then LPC1754 chip is directly sent to petrol station management control system by serial ports;
If so, then first LPC1754 chip is sent to master control board by CAN signal, then this signal is sent to petrol station management control system by serial ports;
After master control board Received signal strength, be sent to external unit by lan network interface;
Petrol station management control system send signal by serial ports enter base plate from processor LPC1754 chip;
Convert current signal to by communication change-over panel after LPC1754 chip receives signals and send fuel-servicing equipment to, control fuel-servicing equipment process and work accordingly.
9. the control method being applicable to the Intelligent communication controller of various communication interfaces according to claim 8, it is characterized in that, master control board is embedded in master control borad software submodules, and master control borad software submodules comprises CAN data processing module, data memory module, system configuration module, abnormality warnings processing module, network monitoring module and middle control back-end data processing module;
In master control board, process is carried out to data as follows:
The running parameter controlling backstage from processor LPC1754 chip, master control board and external unit of system configuration module configuration base plate;
Network monitoring module creates master control board and is connected with the network of external unit, and monitoring network communication state, when network communication is interrupted, notice abnormality warnings processing module carries out abnormality processing, and automatically attempts reconnecting;
CAN data processing module carries out interactive communication by CAN and base plate from processor LPC1754 chip, by classifying from processor LPC1754 chip reception fuel-servicing equipment data from base plate, be then distributed to middle control back-end data processing module by message queue;
The data encapsulation of the fuel-servicing equipment received is become network packet by middle control back-end data processing module, is sent in external unit and controls backstage; And received in external unit the data controlled backstage and send by middle control back-end data processing module, the packet received is classified, is distributed to CAN data processing module through message queue;
After CAN data processing module receives the data of middle control back-end data processing module transmission, by CAN send to base plate from processor LPC1754 chip, the fuel-servicing equipment control command in master control board sent on base plate corresponding to processor LPC1754 chip by CAN simultaneously;
Data memory module store and management fuel-servicing equipment data, and after confirmation fuel-servicing equipment data are correctly received by peripheral equipment control backstage and process, delete corresponding data;
Abnormality warnings processing module carries out abnormality processing and acousto-optic controlling alarm when master control board occurs abnormal.
10. the control method being applicable to the Intelligent communication controller of various communication interfaces according to claim 9, it is characterized in that, the base plate of system configuration module configuration comprises device numbering corresponding to base plate each LPC1754 chip from the running parameter of processor LPC1754 chip; The parameter of master control board of system configuration module configuration comprises the IP address of master control board, gateway and subnet mask, and the running parameter controlling backstage in the external unit of system configuration module configuration comprises in external unit the IP address and network communication port of controlling backstage.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105573207A (en) * | 2015-12-31 | 2016-05-11 | 苏州伊菲斯信息技术有限公司 | Data acquisition controller and data acquisition method used for electric tools |
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