CN104932373A - Intelligent industrial network protocol wireless converter - Google Patents

Abstract

The invention relates to an intelligent industrial network protocol wireless converter, comprising a main board circuit, the main board circuit is respectively connected with a power supply, a human-computer interaction circuit, a field bus interface and a circuit communication circuit, and the power supply is used for supplying power to the main board circuit; The human-computer interaction circuit is used to set the working state of the converter; the field bus interface circuit is used to control the communication between the field bus and the microprocessor; the communication circuit is mainly used to convert the signal transmitted by the field bus into a wireless Wi- Fi signal. The invention can convert various fieldbus signals into Wi-Fi. The invention can realize debugging of various field bus networks on computer equipment lacking related field bus interfaces.

Description

An intelligent industrial network protocol wireless converter

technical field

The invention relates to the field of industrial field network bus network, in particular to an intelligent industrial network protocol wireless converter.

Background technique

Because the field bus has a series of outstanding advantages such as simplicity, reliability, economy and practicality, it is widely used in various industrial sites. However, all kinds of fieldbuses have dedicated interface circuits, and it is impossible to directly use common computer equipment to debug related fieldbus networks, which brings great inconvenience to field debugging personnel.

Contents of the invention

The purpose of the present invention is to provide a more user-friendly and energy-saving wireless converter integrating embedded technology, field bus technology and wireless Wi-Fi.

In order to achieve the above object, the technical solution of the present invention is to provide a wireless converter for intelligent industrial network protocol, which is characterized in that: it includes a main board circuit, and the main board circuit is connected to a power supply, a human-computer interaction circuit, a field bus circuit and a communication circuit respectively. connected, where:

A power supply for supplying power to the main board circuit;

Human-computer interaction circuit for displaying and setting working status;

The field bus interface circuit is used to realize the communication between the field bus and the main board circuit;

The communication circuit is used to convert the fieldbus signal into Ethernet signal and wireless Wi-Fi signal.

Preferably, the motherboard circuit includes a microprocessor, and the microprocessor is responsible for coordinating and controlling the work of each module, controlling the sending and receiving signals of each fieldbus interface circuit and the corresponding Wi-Fi signal, and completing the conversion work of various network protocols .

Preferably, the human-computer interaction circuit includes a touch screen module, a power-on button and a power-off button, and the touch screen module provides the user with a menu interface for the user to set and monitor the current working state, and store relevant parameters in the database.

Preferably, the field bus interface circuit includes a serial port circuit, a parallel port circuit, a ZigBee network interface circuit, a foundation field bus FF interface circuit, a LonWorks field bus network interface circuit, a PROFIBUS field bus interface circuit, and a controller area network CAN interface circuit.

Preferably, the serial port circuit includes a serial port communication module RS232 and a communication module RS485.

Preferably, the main board circuit, power supply, man-machine interaction circuit, field bus interface circuit and communication circuit are installed in the casing.

Preferably, the main board circuit is also connected to an indicator light system for displaying the current working state.

Due to the adoption of the above technical solution, compared with the prior art, the patent of the present invention has the following advantages and positive effects: (1) based on embedded systems, fieldbus technology, wireless Wi-Fi, various fieldbus signals and A new type of converter for the mutual conversion of Ethernet signals and Wi-Fi signals. (2) Realize the intelligent configuration that simplifies the working status through intelligent sensing technology, and simplify the related configuration work of on-site commissioning personnel. (3) The client program works in conjunction with the converter, and if any one party changes settings, it can be intelligently synchronized to the other party, reducing repeated configuration work. (4) According to the actual port connected to the system, the working status of the converter can be intelligently configured, and the configuration work of the converter can be simplified as far as possible, and the probability of configuration errors can be reduced. (5) After the working state configuration is completed, the corresponding interface circuit can be intelligently selected, and other non-working state interface circuits can be shielded to prevent each interface circuit from interfering with each other and reduce the probability of signal error. (6) Complete the mutual conversion between various fieldbuses, which is convenient for users to jointly debug various fieldbus networks.

Description of drawings

Fig. 1 is a schematic diagram of the hardware structure of the patent of the present invention;

Fig. 2 is a schematic front view of the patent of the present invention;

Fig. 3 is a schematic diagram of the front side of the patent of the present invention;

Fig. 4 is a schematic diagram of the rear side of the patent of the present invention.

Detailed ways

Below in conjunction with specific embodiment, further elaborate the patent of the present invention. It should be understood that these embodiments are only used to illustrate the patent of the present invention and are not intended to limit the scope of the patent of the present invention. In addition, it should be understood that after reading the content taught by the patent of the present invention, those skilled in the art can make various changes or modifications to the patent of the present invention, and these equivalent forms also fall within the scope defined by the appended claims of the present application.

The embodiment of the patent of the present invention relates to an intelligent industrial network protocol wireless converter, as shown in Figure 1, including a main board circuit, the main board circuit is connected to a power supply, a human-computer interaction circuit, a field bus circuit and a communication circuit respectively, and the The power supply is used to supply power to the main board circuit; the human-computer interaction circuit is used to display and set the working state of the converter; the field bus interface circuit is used to realize the communication between the field bus and the microprocessor; the communication circuit is used to Fieldbus signals are converted to Ethernet signals and wireless Wi-Fi signals. The mainboard circuit is also connected with an indicator light system for displaying the current working state.

Among them, the motherboard circuit includes a microprocessor, which is mainly responsible for coordinating and controlling the work of each module, controlling the sending and receiving signals of each fieldbus interface circuit and the corresponding Wi-Fi signal, and completing the conversion of various network protocols. accomplish. The microprocessor is also responsible for controlling the working state of the status indicator light. The human-computer interaction circuit includes a touch screen circuit, a visual interface module, and an interface with a communication module and a database, providing users with a menu interface for users to set and monitor the current working status, and store relevant parameters in the database to facilitate subsequent work and call related parameters . The field bus interface circuit mainly includes serial port circuit, parallel port circuit, ZigBee network interface circuit, foundation field bus FF interface circuit, LonWorks field bus network interface circuit, PROFIBUS field bus interface circuit, controller area network CAN interface circuit. The serial port circuit includes a serial port communication module RS232 and a communication module RS485, wherein the RS232 module can be realized by the chip MAX232 and the D-type plug S3C3410B, and the RS485 module can be realized by the chip 75LBC184 and the connector CON2; the parallel port interface circuit can realize the debugging tool of parallel transmission data equipment, which can be realized by Chip NEC D8255AC and DB25 interface; ZigBee network interface circuit mainly realizes the transmission of ZigBee network commands and signals, which can be realized by chip JN5139; Foundation Fieldbus FF interface circuit can realize the convenient interface between microprocessor and FF field medium, and can realize FF The communication protocol of the field bus can be realized by the chip FB3050 and the field bus medium combination unit chip AMIS-49200; the LonWorks field bus interface circuit can facilitate the user to debug the LonWorks network, and can be realized by the chip PL3150 and the RJ45 interface; the PROFIBUS field bus can realize the PROFIBUS Network debugging can be realized by chip ASPC2 and single-mode optical fiber interface OPT-155B1J1; controller LAN CAN interface circuit is used to control the debugging of LAN CAN, which can be realized by CAN transceiver controller SJA1050, CAN bus transceiver 82C250 and isolated optocoupler 6N137. The communication circuit is mainly used to realize the transmission of Ethernet signals, and provides two ways of sending and receiving Ethernet signals: wired network LAN and wireless network Wi-Fi. The wired network LAN can be realized by Ethernet control chip DM9000, network transformer PM48-2064k and RJ45 interface ; Wireless network Wi-Fi can be realized by RTL8188CUS chip. The power module includes a rechargeable lithium battery and an external adapter interface circuit for the converter to provide the required power.

The main board circuit, power supply, human-computer interaction circuit, field bus interface circuit and communication circuit are installed in the shell. Figure 2 shows the front of the industrial network protocol wireless converter, including the touch screen module 2, the status indicator light 3, and the Changan on/off start button 1. Figure 3 shows the front side of the industrial network wireless converter, including an external charging interface 4, an RJ45 interface 5, an RS232 serial communication interface 6-1, an RS485 serial communication interface 6-2 and a parallel communication interface 7. Figure 4 shows the rear side of the industrial network wireless converter, including FF bus interface 8, LonWorks bus interface 9, PROFIBUS bus interface 10, and CAN bus interface 11.

The implementation process of the patent of the present invention is as follows: use Linux as the embedded operating system and SQLite as the database to design the software system of the industrial network protocol wireless converter.

Function 1: Power-on initialization. Long press the start button, the system starts up, the system scans all the memory of the converter, calls the last working state parameters stored in the database, and initializes the relevant interface circuits according to these state parameters to prepare for future protocol conversion.

Function 2: Receive fieldbus information. The field bus interface chips used in the patent of the present invention all have a direct memory access DMA mode, so it is only necessary to set the storage area of the receiving buffer according to the working state of the converter, and the working interface chips can be accessed from the medium contact unit MAU of the corresponding interface Receive and send information and put them in the specified buffer in order. When the buffer is full, the microprocessor will be interrupted, waiting for the microprocessor to process the received information.

Function 3: sending fieldbus information. When the system is initialized, set the start pointer and information length of the information; when the microprocessor needs to send the corresponding field bus, it first puts the data to be sent into the buffer, and then sends a command to the field bus control chip, so that the control chip automatically Send the information to the Media Access Unit MAU.

Function 4: Communication protocol conversion. According to the working status of the converter, the system removes the original protocol encapsulation of the information to be converted, and performs error verification on the data, then encapsulates the verified original data according to the network protocol, and puts it into the corresponding buffer. Wait for further processing by the microprocessor.

Function 5: Intelligent configuration of working state parameters. After modifying the configuration, the client intelligently selects the corresponding working state parameters and transmits them to the converter, automatically completes the configuration of the converter, and updates the indicator light display in the status indicator system. If the parameters transmitted by the client cannot meet the normal operation of the converter, the converter will automatically use the touch screen module to guide the user to complete the corresponding configuration work. In the same way, after the working state parameters of the converter change, the relevant state parameters are automatically updated to the activated client program, and the user is intelligently guided to complete the rest of the configuration work.

Claims (7)

1. A kind of intelligent industrial network protocol wireless converter, it is characterized in that: comprise mainboard circuit, described mainboard circuit is connected with power supply, man-machine interaction circuit, field bus circuit and communication circuit respectively, wherein: A power supply for supplying power to the main board circuit; Human-computer interaction circuit for displaying and setting working status; The field bus interface circuit is used to realize the communication between the field bus and the main board circuit; The communication circuit is used to convert the fieldbus signal into Ethernet signal and wireless Wi-Fi signal. 2. A kind of intelligent industry network protocol wireless converter as claimed in claim 1, is characterized in that: described motherboard circuit comprises microprocessor, is responsible for coordinating and controlling the work of each module by microprocessor, controls each field bus interface circuit Send and receive signals and corresponding Wi-Fi signals, and complete the conversion of various network protocols. 3. A kind of intelligent industrial network protocol wireless converter as claimed in claim 1, characterized in that: the human-computer interaction circuit includes a touch screen module, a power-on button and a power-off button, a menu interface is provided for the user through the touch screen module, for The user sets and monitors the current working status, and stores relevant parameters in the database. 4. A kind of intelligent industry network protocol wireless converter as claimed in claim 1, is characterized in that: described field bus interface circuit comprises serial port circuit, parallel port circuit, ZigBee network interface circuit, foundation field bus FF interface circuit, LonWorks Field bus network interface circuit, PROFIBUS field bus interface circuit, controller local area network CAN interface circuit. 5. An intelligent industrial network protocol wireless converter as claimed in claim 4, wherein the serial port circuit includes a serial port communication module RS232 and a communication module RS485. 6 . The wireless converter of intelligent industrial network protocol according to claim 1 , wherein the main board circuit, power supply, human-computer interaction circuit, field bus interface circuit and communication circuit are installed in the casing. 7 . 7. An intelligent industrial network protocol wireless converter according to claim 1, characterized in that: said main board circuit is also connected with an indicator light system for displaying the current working state.