CN217904426U

CN217904426U - High-flexibility modularized field bus

Info

Publication number: CN217904426U
Application number: CN202222131079.4U
Authority: CN
Inventors: 茅爱峰
Original assignee: Kunshan No1 Precision Industry Technology Co ltd
Current assignee: Kunshan No1 Precision Industry Technology Co ltd
Priority date: 2022-08-12
Filing date: 2022-08-12
Publication date: 2022-11-25
Anticipated expiration: 2032-08-12

Abstract

The utility model discloses a high flexibility modular field bus relates to the industrial communication field, and its technical scheme main points are: the intelligent control system comprises a control module, a configuration module electrically connected with the control module respectively, an upper interface module, a communication working module, a data routing module and a lower interface module, wherein the upper interface module comprises upper interface units of a plurality of different specifications, the communication working module comprises communication units of a plurality of different communication modes, the data routing module comprises data routing units of a plurality of different specifications, the lower interface module comprises lower interface units of a plurality of different specifications, and an upper user interface used for connecting an external upper computer is arranged on the configuration module. The utility model has the advantages of high flexibility, strong platform adaptability.

Description

High-flexibility modularized field bus

Technical Field

The utility model relates to an industrial communication field, more specifically say, it relates to a high flexibility modular field bus.

Background

The Fieldbus (Fieldbus) is an industrial data bus that has been rapidly developed in recent years, and mainly solves the problem of digital communication between field devices such as intelligent instruments, controllers, and actuators in an industrial field and the problem of information transfer between these field control devices and advanced control systems. At present, mature field bus solutions such as Ethercat, profinet and the like require a large amount of complex configuration and have high performance requirements on a use platform, the field bus solutions not only require a large amount of time for learning and practice, but also require hardware equipment authorized by manufacturers of the field bus solutions, the compatibility is poor, and the field bus can not be used for configuring modules with different specifications and performances according to use requirements, and can not be suitable for use requirements in different occasions.

Therefore, a new solution is needed to solve this problem.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a high flexibility modular field bus has the advantage that has high flexibility, strong platform suitability.

The above technical object of the present invention can be achieved by the following technical solutions: the utility model provides a high flexibility modular field bus, includes control module, respectively with control module electric connection's configuration module, upper interface module, communication work module, data routing module and lower floor interface module, upper interface module includes the upper interface unit of a plurality of different specifications, communication work module includes the communication unit of a plurality of different communication modes, data routing module includes the data routing unit of a plurality of different specifications, lower floor interface module includes the lower floor interface unit of a plurality of different specifications, the configuration module is used for selecting arbitrary one upper interface unit of configuration, arbitrary one communication unit, arbitrary one data routing unit and arbitrary one lower floor interface unit and control module intercommunication to form field bus, be provided with the upper user interface who is used for connecting outside host computer on the configuration module.

In one embodiment, the upper interface units with different specifications are a DMA unit, a DDR unit and an SRAM unit.

In one embodiment, the communication units of the different communication modes are an ACT communication unit, a PRC communication unit and a PRES communication unit.

In one embodiment, the data routing units with different specifications are a basic data routing unit and an advanced data routing unit respectively.

In one embodiment, the lower layer interface units of different specifications are an Ethernet lower layer interface unit, a 485 lower layer interface unit and a 422 lower layer interface unit.

In one embodiment, the system further comprises a state and monitoring module, wherein the state and monitoring module is electrically connected with the control module, the configuration module, the upper layer interface module, the communication working module, the data routing module and the lower layer interface module respectively.

To sum up, the utility model discloses following beneficial effect has: the utility model discloses can be according to the high requirement nature of the corresponding unit in each module of the different user demand apolegamy of outside platform in order to reduce the complexity of configuration, platform performance, nimble be applied to equipment not and platform on, the user need not confine the not enough of platform performance, the not enough of platform interface again, lets the user have the space of trade-off between function and performance, has practiced thrift the cost of debugging and study by a wide margin.

Drawings

Fig. 1 is a block diagram of a high flexibility modular fieldbus of an embodiment of the present application.

In the figure: 1. a configuration module; 2. a control module; 3. an upper layer interface module; 4. a communication working module; 5. a data routing module; 6. a lower layer interface module; 7. and a status and monitoring module.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1, an embodiment of the present application provides a high-flexibility modularized field bus, which includes a control module 2, a configuration module 1 electrically connected to the control module 2, an upper interface module 3, a communication working module 4, a data routing module 5, and a lower interface module 6. The upper layer interface module 3 is a switching interface for connecting a user upstream device and the field bus of the embodiment, and the upper layer interface module 3 includes a plurality of upper layer interface units with different specifications. The communication working module is used for sending data of upstream equipment to the control module 2 in a required mode so as to be received by downstream equipment, and the communication working module 4 comprises a plurality of communication units with different communication modes. The data routing module 5 subdivides and routes data, and sends different data by different protocol stacks, and the data routing module 5 includes a plurality of data routing units with different specifications. The lower layer interface module 6 is a transfer interface between the field bus and the physical layer transmission, so that the data frame of the field bus can be transmitted by the physical layer, and the lower layer interface module 6 comprises a plurality of lower layer interface units with different specifications. The configuration module 1 is used for selectively configuring any one upper interface unit, any one communication unit, any one data routing unit and any one lower interface unit to be communicated with the control module 2 so as to form a field bus, and an upper user interface used for being connected with an external upper computer is arranged on the configuration module 1.

It should be noted that the control module 2 may be a standard module set based on an FPGA, or may be another microprocessor, where the FPGA belongs to a semi-custom circuit in an asic, and is a programmable logic array, which can effectively solve the problem of a small number of gate circuits in the original device. The basic structure of the FPGA comprises a programmable input/output unit, a configurable logic block, a global digital clock module, an embedded block RAM, wiring resources, an embedded special hard core and a bottom layer embedded functional unit; the configuration module 1, the upper layer interface module 3, the communication working module 4, the data routing module 5 and the lower layer interface module 6 are respectively provided with a transceiving end and are connected with the control module 2 through the transceiving ends, so that the control module 2 can send signals to other modules, and the other modules can also feed back signals to the control module 2; the upper computer may be a computer, the configuration module 1 has a plurality of registers, and according to a use requirement, the registers are configured by the computer to realize selection of each unit in each module, so as to control an operation mode of the field bus, wherein a specific mode of controlling the configuration module 1 by the upper computer adopts the prior art, which is not described in this embodiment.

When the system works, an upstream device is connected with the upper layer interface module 3, a downstream device is connected with the lower layer interface module 6, an upper computer is connected with a user interface, a user inputs a selection instruction to the configuration module 1 through the upper computer according to the use requirement, the control module 2 controls the configuration and selection of one upper layer interface unit in the upper layer interface module 3, one communication unit in the communication working module, one data routing unit in the data routing module 5 and one lower layer interface unit in the lower layer interface module 6 through the selection instruction to form a bus system, and the communication connection of the upstream device and the downstream device is realized.

By the mode, the corresponding units in the modules can be selected and matched according to different use requirements of the external platform so as to reduce the complexity of configuration and the high requirement of platform performance, the method is flexibly applied to equipment and platforms which are not used, a user does not need to be limited by the defects of the platform performance and the defects of a platform interface, the user has a balanced space between the functions and the performance, and the debugging and learning cost is greatly saved.

On the basis, the upper layer interface units with different specifications are respectively a DMA unit, a DDR unit and an SRAM unit.

It should be noted that the DMA represents a direct memory, which allows the communication of hardware devices of different speeds without having to rely on a large interrupt load of the control module 2, which allows the copying of data from one address space to another;

the DDR represents a double-rate synchronous dynamic random access memory, which applies a more advanced synchronous circuit to enable the main steps of transmission and output of the designated address and data to be executed independently and to keep complete synchronization with the control module 2;

the SRAM is referred to as a static random access memory, and is referred to as "static" in that data stored in the SRAM can be constantly held as long as the memory is powered on, but the data stored in the SRAM disappears when the power supply is stopped.

Specifically, the DMA unit includes a first daughter card for carrying the DMA and a first communication interface electrically connected to the first daughter card; the DDR unit comprises a second sub card for bearing DDR and a second communication interface electrically connected with the second sub card; the DMA unit comprises a third sub card for bearing the DMA and a third communication interface electrically connected with the third sub card, the first sub card, the second sub card and the third sub card all adopt the prior art, and the first communication interface, the second communication interface and the third communication interface all can adopt interfaces 1349B, USB2.0, USB3.0 and the like.

Specifically, the data interaction performance is the strongest among the DDR unit, the DMA unit and the SRAM unit.

In the above manner, when in use, the upper layer interface unit matched with the data interaction performance can be selected according to the strength of the data interaction performance so as to match the optimal performance requirement of the equipment platform.

On the basis, the communication units with different communication modes are an ACT communication unit, a PRC communication unit and a PRES communication unit respectively.

Specifically, the ACT is a short for advanced communication technology, and includes a first communication module having an ACT communication mode; the PRC is a high-precision and high-stability clock of a reference master clock, the clock is distributed to each level of clock through a synchronous distribution network, and the clock comprises a second communication module with a PRC communication mode; PRES means instant messaging, which includes a third communication module having a PRES communication mode. The first communication module, the second communication module, and the third communication module all use the prior art, and the detailed description thereof is omitted in this embodiment.

In the above manner, in an ACT communication mode, the upstream device may select, through a bus, this communication cycle to communicate with only some downstream device nodes, and the next communication cycle may also flexibly switch communication nodes, and improve communication efficiency by reducing the number of communication nodes in each communication cycle; in the PRC mode, the upstream equipment can communicate with a plurality of equipment nodes through a data frame through a bus, and the communication efficiency is improved in a single-frame multiplexing mode; in PRES mode, the device node may be configured to receive only the non-response mode to reduce traffic.

On the basis, the data routing units with different specifications are a basic data routing unit and an advanced data routing unit respectively.

Specifically, the basic data routing unit encloses a low-power routing module, and the advanced data routing unit is a high-power routing module.

On the basis, the lower layer interface units with different specifications are respectively an Ethernet (Ethernet) lower layer interface unit, a 485 lower layer interface unit and a 422 lower layer interface unit. The method can be applied to various interfaces to improve the platform applicability of the field bus.

On the basis, the system further comprises a state and monitoring module 7, wherein the state and monitoring module 7 is electrically connected with the control module 2, the configuration module 1, the upper-layer interface module 3, the communication working module 4, the data routing module 5 and the lower-layer interface module 6 respectively. The state and monitoring module 7 is configured to detect an operating state of each module, and specifically adopts the prior art, which is not described in detail in this embodiment.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A high flexibility modular fieldbus characterized in that: including control module (2), respectively with control module (2) electric connection's configuration module (1), upper interface module (3), communication work module (4), data routing module (5) and lower floor interface module (6), upper interface module (3) include the upper interface unit of a plurality of different specifications, communication work module (4) include the communication unit of a plurality of different communication modes, data routing module (5) include the data routing unit of a plurality of different specifications, lower floor interface module (6) include the lower floor interface unit of a plurality of different specifications, configuration module (1) is used for selecting arbitrary one upper interface unit of configuration, arbitrary one communication unit, arbitrary one data routing unit and arbitrary one lower floor interface unit and control module (2) intercommunication to form field bus, be provided with the upper user interface who is used for connecting outside host computer on configuration module (1).

2. The high flexibility modular fieldbus of claim 1, wherein: the upper layer interface units with different specifications are respectively a DMA unit, a DDR unit and an SRAM unit.

3. The high flexibility modular fieldbus of claim 1, wherein: the communication units with different communication modes are an ACT communication unit, a PRC communication unit and a PRES communication unit respectively.

4. The high flexibility modular fieldbus of claim 1, wherein: the data routing units with different specifications are a basic data routing unit and an advanced data routing unit respectively.

5. The high flexibility modular fieldbus of claim 1, wherein: the lower layer interface units with different specifications are respectively an Ethernet lower layer interface unit, a 485 lower layer interface unit and a 422 lower layer interface unit.

6. The high flexibility modular fieldbus of claim 1, wherein: the intelligent monitoring system is characterized by further comprising a state and monitoring module (7), wherein the state and monitoring module (7) is electrically connected with the control module (2), the configuration module (1), the upper-layer interface module (3), the communication working module (4), the data routing module (5) and the lower-layer interface module (6) respectively.