System for realizing data interaction between Profinet communication network and BLVDS bus

Abstract

The invention discloses a system for realizing data interaction between a Profinet communication network and a BLVDS bus, and the system comprises a network interface circuit module which is connected to the Profinet communication network through a network cable; the communication control circuit module is in signal connection with the network interface circuit module, and the communication control circuit module comprises a Profinet data processing module, a protocol conversion block and a BLVDS data processing module; the level conversion circuit module is in signal connection with the communication control circuit module and is connected with an electrical interface of a BLVDS bus; when the Profinet bus transmits data to the BLVDS, the data from the Profinet communication network is received, transmitted to the communication control circuit module for processing, and then transmitted to the level conversion circuit module so as to reach the BLVDS bus network; when the BLVDS bus transmits data to the Profinet communication network, the level conversion circuit module sends network data from the BLVDS bus to the communication control circuit module for processing and then outputs the network data to the Profinet communication network through the network interface circuit module, so that data interaction between the Profinet communication network and the BLVDS bus is realized.

Description

Technical Field

[0001] The present invention belongs to the technical field of bus communication, and in particular relates to a system and an interaction method for realizing data interaction between a Profinet communication network and a BLVDS bus. Background Art

[0002] PROFIBUS has been widely used in industrial automation since the 1980s. Since the 1990s, Ethernet technology has rapidly developed and expanded its application in the industrial sector. Today, high-speed, secure digital communications are playing an increasingly indispensable role in industrial production. With the widespread adoption of Ethernet technology in many fields, industrial automation is in need of technological innovation, leading to the emergence of PROFINET (Process Field Net), a fusion of fieldbus and Ethernet technologies. Developed by PI (PROFIBUS International), PROFINET is an Ethernet standard for industrial automation using Ethernet technology, meeting all the requirements of today's automated production technology. Traditional industrial Ethernet uses the TCP / IP protocol to transmit non-real-time data. Due to its characteristics, this protocol is not suitable for applications requiring response times below 5 milliseconds. In 1999, PROFIBUS International seized this opportunity and, while still using the TCP / IP protocol standards, adapted them to meet real-time transmission requirements. This resulted in real-time industrial Ethernet, which not only achieves millisecond-level response speeds but also seamlessly integrates with fieldbus systems, protecting existing investments.

[0003] BLVDS is a new family of bus interface circuits based on LVDS technology, specifically designed for multi-point cable or backplane applications. It features low-voltage differential signaling of approximately 250mV and fast transition times. This enables products to achieve high data transmission rates from 100Mbps to over 1Gbps. Furthermore, the low voltage swing minimizes power consumption and noise. The differential data transmission configuration provides an active bus with a + / -1V common-mode range and supports hot-swappable devices.

[0004] However, due to various reasons, the Profinet communication network and the BLVDS bus are incompatible, information sharing cannot be achieved, and interoperability between devices with different protocols is difficult. Summary of the Invention

[0005] To solve the above problems, the purpose of the present invention is to provide a system and method for realizing data interaction between the Profinet communication network and the BLVDS bus, which can realize data interaction between the Profinet communication network and the BLVDS bus and solve the problem that data cannot be communicated and interconnected between the Profinet communication network and the BLVDS bus.

[0006] A technical solution of the present invention is: a system for realizing data interaction between a Profinet communication network and a BLVDS bus, comprising: a network interface circuit module, connected to the Profinet communication network via a network cable; a communication control circuit module, connected to the network interface circuit module by signal, the communication control circuit module comprising a Profinet data processing module, a protocol conversion block and a BLVDS data processing module; a level conversion circuit module, connected to the communication control circuit module by signal, and connected to the electrical interface of the BLVDS bus; when the Profinet bus transmits data to the BLVDS, the network interface circuit module receives the data from the Profinet communication network and transmits it to the communication control circuit module Block, after being processed in sequence by the Profinet data processing module, protocol conversion block and BLVDS data processing module in the communication control circuit module, it is sent to the level conversion circuit module to reach the BLVDS bus network; when the BLVDS bus transmits data to the Profinet communication network, the level conversion circuit module sends the data from the BLVDS bus network to the communication control circuit module, after being processed in sequence by the BLVDS data processing module, protocol conversion block and Profinet data processing module in the communication control circuit module, it is output to the Profinet communication network through the network interface circuit module, thereby realizing the data interaction between the Profinet communication network and the BLVDS bus.

[0007] Preferably, the Profinet data processing module includes a Profinet data transceiver block and a Profinet data protocol block. When receiving the Profinet data transmitted by the network interface circuit module, the Profinet data transceiver block verifies the data. If the transmitted Profinet data is invalid instruction information, no processing is performed. If the transmitted Profinet data is valid instruction information, the data is transmitted to the Profinet protocol block. The Profinet protocol block parses and extracts the data and then sends it to the protocol conversion block. The protocol conversion block encodes the data into a data signal in BLVDS bus encoding mode and then sends the data signal to the BLVDS data processing module.

[0008] Preferably, the BLVDS data processing module includes a BLVDS data packaging block, a BLVDS data sending block, a BLVDS transceiver block, a BLVDS data parsing module, and a BLVDS data receiving block. After receiving the encoded data signal, the BLVDS data packaging block packages the data according to the BLVDS protocol and sends it to the BLVDS data sending block. The BLVDS data sending block adds an address and a check code to the data and sends it to the BLVDS transceiver block. The BLVDS transceiver block transmits the data to the BLVDS bus.

[0009] Preferably, the BLVDS transceiver block first arbitrates to determine whether the BLVDS bus is idle, and when the BLVDS bus is idle, the BLVDS transceiver block transmits data to the BLVDS bus.

[0010] Preferably, when data is transmitted from the BLVDS bus to the Profinet communication network, the data on the BLVDS bus is passed to the BLVDS data receiving block through the BLVDS transceiver block. The BLVDS data receiving block verifies the data and then sends the data to the BLVDS data parsing block. The BLVDS data parsing block parses and extracts the data and then passes it to the protocol conversion block. The protocol conversion block converts the BLVDS data format encoding into Profinet communication network protocol data and then sends it to the Profinet data processing module.

[0011] Preferably, when data is transmitted from the BLVDS bus to the Profinet communication network, the Profinet data protocol block in the Profinet data processing module groups and packages the data and passes it to the Profinet data transceiver block, which then sends it to the Profinet communication network.

[0012] Preferably, the communication control circuit module is implemented using an ARM circuit + FPGA circuit architecture, the ARM circuit is connected to the Profinet communication network, the ARM circuit communicates with the FPGA circuit through an SPI serial port, and the FPGA circuit communicates with the BLVDS bus.

[0013] Based on the same concept, another technical solution of the present invention is: a method for realizing data conversion from a Profinet communication network to a BLVDS bus, comprising the following steps: receiving data from a Profinet communication network through a network interface circuit module; verifying the acquired data, parsing and extracting the data when the data is valid instruction information, and then encoding and converting the extracted data according to the BLVDS bus encoding method before BLVDS data packetization; adding an address and a check code to the packetized data through a BLVDS data transmission block; and sending the data to the BLVDS bus through a BLVDS transceiver block.

[0014] Preferably, the method further comprises determining whether the BLVDS bus is idle before sending the data to the BLVDS bus through the BLVDS transceiver block, and sending the data if the bus is idle.

[0015] Based on the same concept, another technical solution of the present invention is: a method for converting BLVDS bus data to a Profinet communication network, comprising the following steps: receiving data from a BLVDS bus through a level conversion circuit module; verifying the acquired data, and parsing and extracting the data when the data is valid instruction information; encoding and converting the extracted data according to the Profinet communication network protocol, grouping and packaging the data, and then transmitting the data to a Profinet data transceiver block; and transmitting the data to the Profinet communication network through the Profinet data transceiver block.

[0016] Based on the same concept, the present invention also provides an electronic device, characterized in that it includes: a memory, the memory is used to store a processing program; and a processor, when the processor executes the processing program, it implements any one of the above-mentioned methods for converting Profinet communication network to BLVDS bus data or the above-mentioned method for converting BLVDS bus data to Profinet communication network.

[0017] Based on the same concept, the present invention also provides a readable storage medium, characterized in that a processing program is stored on the readable storage medium, and when the processing program is executed by a processor, it implements any one of the above-mentioned methods for converting Profinet communication network to BLVDS bus data or the above-mentioned method for converting BLVDS bus data to Profinet communication network.

[0018] Due to the adoption of the above technical solution, the present invention has the following advantages and positive effects compared with the prior art:

[0019] The technical solution of the present invention implements bidirectional data transmission between the Profinet communication network and the BLVDS bus by providing a network interface circuit module for connecting to a Profinet communication network via a network cable and a level conversion circuit module for connecting to an electrical interface of a BLVDS bus. The communication control circuit module parses, extracts, and converts data acquired from the Profinet communication network and the BLVDS bus. Data acquired from the Profinet communication network can be converted into data that complies with the BLVDS bus protocol, and vice versa, thereby enabling data interoperability between the Profinet communication network and the BLVDS bus. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The specific embodiments of the present invention are further described in detail below with reference to the accompanying drawings, wherein:

[0021] Figure 1 This is a system structure diagram for realizing data interaction between the Profinet communication network and the BLVDS bus in the present invention;

[0022] Figure 2 This is a schematic diagram of the system communication control circuit bridge structure for realizing data interaction between the Profinet communication network and the BLVDS bus in the present invention. DETAILED DESCRIPTION

[0023] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more apparent from the following description and claims. It should be noted that the drawings are greatly simplified and not to exact ratios, and are intended solely to facilitate and clearly illustrate the embodiments of the present invention.

[0024] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0025] First embodiment

[0026] like Figure 1 and Figure 2As shown, a technical solution of the present invention is: a system for realizing data interaction between a Profinet communication network and a BLVDS bus, comprising: a network interface circuit module, connected to the Profinet communication network through a network cable; a communication control circuit module, connected to the network interface circuit module by signal, the communication control circuit module comprising a Profinet data processing module, a protocol conversion block and a BLVDS data processing module; a level conversion circuit module, connected to the communication control circuit module by signal, and connected to the electrical interface of the BLVDS bus; when the Profinet bus transmits data to the BLVDS, the network interface circuit module receives the data from the Profinet communication network and transmits it to the communication control circuit module. The circuit module is sequentially processed by the Profinet data processing module, protocol conversion block and BLVDS data processing module in the communication control circuit module and then sent to the level conversion circuit module to reach the BLVDS bus network; when the BLVDS bus transmits data to the Profinet communication network, the level conversion circuit module sends the data from the BLVDS bus network to the communication control circuit module, which is sequentially processed by the BLVDS data processing module, protocol conversion block and Profinet data processing module in the communication control circuit module and then output to the Profinet communication network through the network interface circuit module, thereby realizing data interaction between the Profinet communication network and the BLVDS bus.

[0027] The technical solution provided in this embodiment implements bidirectional data transmission between the Profinet communication network and the BLVDS bus by providing a network interface circuit module for connecting to the Profinet communication network via a network cable and a level conversion circuit module for connecting to the electrical interface of the BLVDS bus. The communication control circuit module parses, extracts, and converts data acquired from the Profinet communication network and the BLVDS bus. Data acquired from the Profinet communication network can be converted into data that complies with the BLVDS bus protocol, and vice versa, thereby enabling data interoperability between the Profinet communication network and the BLVDS bus.

[0028] Preferably, the Profinet data processing module includes a Profinet data transceiver block and a Profinet data protocol block. When receiving the Profinet data transmitted by the network interface circuit module, the Profinet data transceiver block verifies the data. If the transmitted Profinet data is invalid instruction information, no processing is performed. If the transmitted Profinet data is valid instruction information, the data is transmitted to the Profinet protocol block. The Profinet protocol block parses and extracts the data and then sends it to the protocol conversion block. The protocol conversion block encodes the data into a data signal in BLVDS bus encoding mode and then sends the data signal to the BLVDS data processing module.

[0029] In the technical solution of this embodiment, the Profinet data processing module is internally provided with a Profinet data transceiver block and a Profinet data protocol block. The Profinet data transceiver block verifies whether the data is valid instruction information. If it is valid instruction information, the Profinet data protocol block parses and extracts the data to obtain key information transmitted by the Profinet communication network. The data carrying the key information is then converted into data that meets the requirements of the BLVDS bus through the protocol conversion block, thereby realizing the processing of data transmitted by the Profinet communication network.

[0030] Preferably, the BLVDS data processing module includes a BLVDS data packaging block, a BLVDS data sending block, a BLVDS transceiver block, a BLVDS data parsing module, and a BLVDS data receiving block. After receiving the encoded data signal, the BLVDS data packaging block packages the data according to the BLVDS protocol and sends it to the BLVDS data sending block. The BLVDS data sending block adds an address and a check code to the data and sends it to the BLVDS transceiver block. The BLVDS transceiver block transmits the data to the BLVDS bus.

[0031] In this embodiment, when the BLVDS data processing module receives data that complies with the BLVDS bus protocol after conversion by the protocol conversion block, the BLVDS data packetization block within the BLVDS data processing module packetizes the data. The BLVDS data transmission block then adds an address and a checksum to the packetized data. The processed data is then transmitted to the BLVDS bus via the BLVDS transceiver block. The BLVDS data receiving block and BLVDS data parsing module are used to convert BLVDS bus data into data for transmission over the Profinet communication network.

[0032] Preferably, the BLVDS transceiver block first arbitrates to determine whether the BLVDS bus is idle, and when the BLVDS bus is idle, the BLVDS transceiver block transmits data to the BLVDS bus.

[0033] In the technical solution of this embodiment, the BLVDS transceiver block also needs to determine whether the BLVDS bus is idle, and if so, transmit data.

[0034] Preferably, when data is transmitted from the BLVDS bus to the Profinet communication network, the data on the BLVDS bus is passed to the BLVDS data receiving block through the BLVDS transceiver block. The BLVDS data receiving block verifies the data and then sends the data to the BLVDS data parsing block. The BLVDS data parsing block parses and extracts the data and then passes it to the protocol conversion block. The protocol conversion block converts the BLVDS data format encoding into Profinet communication network protocol data and then sends it to the Profinet data processing module.

[0035] In the technical solution of this embodiment, when converting BLVDS bus data into Profinet communication network transmission data, the BLVDS data receiving block verifies the data and then sends the data to the BLVDS data parsing block. The BLVDS data parsing block parses and extracts the data and then passes it to the protocol conversion block, thereby realizing preprocessing of the BLVDS data.

[0036] Preferably, when data is transmitted from the BLVDS bus to the Profinet communication network, the Profinet data protocol block in the Profinet data processing module groups and packages the data and passes it to the Profinet data transceiver block, which then sends it to the Profinet communication network.

[0037] In the technical solution of this embodiment, when the Profinet data protocol block receives data transmitted by the protocol conversion block, it groups and packages the data, and then sends it to the Profinet communication network through the Profinet data transceiver block.

[0038] Preferably, the communication control circuit module is implemented using an ARM circuit + FPGA circuit architecture, the ARM circuit is connected to the Profinet communication network, the ARM circuit communicates with the FPGA circuit through an SPI serial port, and the FPGA circuit communicates with the BLVDS bus.

[0039] Second embodiment

[0040] Based on the same concept, another technical solution of the present invention is: a method for converting Profinet communication network data to BLVDS bus data, comprising the following steps:

[0041] Receive data from the Profinet communication network through the network interface circuit module;

[0042] The acquired data is checked, and when the data is valid instruction information, the data is parsed and extracted, and then the extracted data is encoded and converted according to the BLVDS bus encoding method and then BLVDS data is packaged;

[0043] Add address and check code to the package data through BLVDS data sending block;

[0044] Transmitted to the BLVDS bus via the BLVDS transmitter / receiver block.

[0045] The technical solution provided in this embodiment connects to the Profinet communication network via a network cable through a network interface circuit module and connects to the electrical interface of the BLVDS bus through a level conversion circuit module, thereby enabling bidirectional data transmission between the Profinet communication network and the BLVDS bus. The communication control circuit module parses, extracts, and converts data acquired from the Profinet communication network and the BLVDS bus. Data acquired from the Profinet communication network is converted into data that complies with the BLVDS bus protocol, and vice versa, thereby enabling data interoperability between the Profinet communication network and the BLVDS bus.

[0046] Preferably, the method further comprises determining whether the BLVDS bus is idle before sending the data to the BLVDS bus through the BLVDS transceiver block, and sending the data if the bus is idle.

[0047] Third embodiment

[0048] Based on the same concept, another technical solution of the present invention is: a method for converting BLVDS bus data to a Profinet communication network, comprising the following steps:

[0049] Receive data from the BLVDS bus through the level conversion circuit module;

[0050] Verify the acquired data and parse and extract the data if it is valid instruction information;

[0051] According to the Profinet communication network protocol, the extracted data is encoded and converted, and then the data is grouped and packaged and passed to the Profinet data transceiver block;

[0052] The data is sent to the Profinet communication network via the Profinet data transceiver block.

[0053] The technical solution provided in this embodiment connects to the Profinet communication network via a network cable through a network interface circuit module, and connects to the electrical interface of the BLVDS bus through a level conversion circuit module, thereby enabling bidirectional data transmission between the Profinet communication network and the BLVDS bus. The communication control circuit module parses, extracts, and converts data acquired from the Profinet communication network and the BLVDS bus. Data acquired from the Profinet communication network is converted into data that complies with the BLVDS bus protocol, and vice versa, thereby enabling data interoperability between the Profinet communication network and the BLVDS bus.

[0054] Based on the same concept, the present invention also provides an electronic device, comprising: a memory for storing a processing program; a processor, wherein when executing the processing program, the processor implements any one of the above-mentioned methods for converting Profinet communication network data to BLVDS bus data or the above-mentioned method for converting BLVDS bus data to Profinet communication network.

[0055] Based on the same concept, the present invention also provides a readable storage medium having a processing program stored thereon. When the processing program is executed by a processor, it implements any one of the above-mentioned methods for converting Profinet communication network data to BLVDS bus data or the above-mentioned method for converting BLVDS bus data to Profinet communication network.

[0056] The method for converting Profinet communication network data to BLVDS bus data or the method for converting BLVDS bus data to Profinet communication network, if implemented in the form of program instructions and sold or used as an independent product, can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this embodiment, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of software, and the computer software is stored in a storage medium, including several instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present disclosure. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), disk or optical disk, and other media that can store program code.

[0057] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the identification content specifically executed by the above-described system and device can refer to the corresponding process in the aforementioned method embodiment.

[0058] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, if these changes fall within the scope of the claims of the present invention and their equivalents, they still fall within the scope of protection of the present invention.

Claims

1. A system for realizing data interaction between a Profinet communication network and a BLVDS bus, characterized in that: include: The network interface circuit module is connected to the Profinet communication network via a network cable; A communication control circuit module is signal-connected to the network interface circuit module, and the communication control circuit module includes a Profinet data processing module, a protocol conversion block, and a BLVDS data processing module; A level conversion circuit module is connected to the communication control circuit module signal and connected to the electrical interface of the BLVDS bus; When the Profinet bus transmits data to the BLVDS, the network interface circuit module receives the data from the Profinet communication network and transmits it to the communication control circuit module. After being processed in sequence by the Profinet data processing module, protocol conversion block and BLVDS data processing module in the communication control circuit module, the data is sent to the level conversion circuit module to reach the BLVDS bus network. When the BLVDS bus transmits data to the Profinet communication network, the level conversion circuit module sends the data from the BLVDS bus network to the communication control circuit module. After being processed in sequence by the BLVDS data processing module, protocol conversion block and Profinet data processing module in the communication control circuit module, the data is output to the Profinet communication network through the network interface circuit module, thereby realizing data interaction between the Profinet communication network and the BLVDS bus.

2. The system for realizing data interaction between a Profinet communication network and a BLVDS bus according to claim 1, characterized in that: The Profinet data processing module includes a Profinet data transceiver block and a Profinet data protocol block. When receiving Profinet data transmitted by the network interface circuit module, the Profinet data transceiver block verifies the data. If the transmitted Profinet data is invalid instruction information, no processing is performed. If the transmitted Profinet data is valid instruction information, the data is transmitted to the Profinet protocol block. The Profinet protocol block parses and extracts the data and then sends it to the protocol conversion block. The protocol conversion block encodes the data into a data signal in the BLVDS bus encoding method and then sends the data signal to the BLVDS data processing module.

3. The system for realizing data interaction between a Profinet communication network and a BLVDS bus according to claim 2, characterized in that: The BLVDS data processing module includes a BLVDS data packaging block, a BLVDS data sending block, a BLVDS transceiver block, a BLVDS data parsing module, and a BLVDS data receiving block. After receiving the encoded data signal, the BLVDS data packaging block packages the data according to the BLVDS protocol and sends it to the BLVDS data sending block. The BLVDS data sending block adds an address and a check code to the data and sends it to the BLVDS transceiver block. The BLVDS transceiver block transmits the data to the BLVDS bus.

4. The system for realizing data interaction between a Profinet communication network and a BLVDS bus according to claim 3, characterized in that: The BLVDS transceiver block first arbitrates to determine whether the BLVDS bus is idle. When the BLVDS bus is idle, the BLVDS transceiver block transmits data to the BLVDS bus.

5. The system for realizing data interaction between a Profinet communication network and a BLVDS bus according to claim 3, characterized in that: When data is transmitted from the BLVDS bus to the Profinet communication network, the data on the BLVDS bus is passed to the BLVDS data receiving block through the BLVDS transceiver block. The BLVDS data receiving block verifies the data and then sends the data to the BLVDS data parsing block. The BLVDS data parsing block parses and extracts the data and then passes it to the protocol conversion block. The protocol conversion block converts the BLVDS data format code into Profinet communication network protocol data and sends it to the Profinet data processing module.

6. The system for realizing data interaction between a Profinet communication network and a BLVDS bus according to claim 5, characterized in that: When data is transmitted from the BLVDS bus to the Profinet communication network, the Profinet data protocol block in the Profinet data processing module groups and packages the data and passes it to the Profinet data transceiver block, which then sends it to the Profinet communication network.

7. The system for realizing data interaction between a Profinet communication network and a BLVDS bus according to claim 1, characterized in that: The communication control circuit module is implemented using an ARM circuit + FPGA circuit architecture. The ARM circuit is connected to the Profinet communication network. The ARM circuit communicates with the FPGA circuit via an SPI serial port. The FPGA circuit communicates with the BLVDS bus.

8. A method for converting Profinet communication network data to BLVDS bus data, characterized in that: The steps include: Receive data from the Profinet communication network through the network interface circuit module; The acquired data is checked, and when the data is valid instruction information, the data is parsed and extracted, and then the extracted data is encoded and converted according to the BLVDS bus encoding method and then BLVDS data is packaged; Add address and check code to the package data through BLVDS data sending block; Transmitted to the BLVDS bus via the BLVDS transmitter / receiver block.

9. The method for converting Profinet communication network data to BLVDS bus data according to claim 8, characterized in that: The method further includes determining whether the BLVDS bus is idle before sending the data to the BLVDS bus through the BLVDS transceiver block, and sending the data if the BLVDS bus is idle.

10. A method for converting BLVDS bus data to Profinet communication network, characterized in that: The steps include: Receive data from the BLVDS bus through the level conversion circuit module; Verify the acquired data and parse and extract the data if it is valid instruction information; According to the Profinet communication network protocol, the extracted data is encoded and converted, and then the data is grouped and packaged and passed to the Profinet data transceiver block; The data is sent to the Profinet communication network via the Profinet data transceiver block.

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