CN220210465U - Internal communication device and system of multi-motor transmission system - Google Patents
Internal communication device and system of multi-motor transmission system Download PDFInfo
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- CN220210465U CN220210465U CN202320777763.1U CN202320777763U CN220210465U CN 220210465 U CN220210465 U CN 220210465U CN 202320777763 U CN202320777763 U CN 202320777763U CN 220210465 U CN220210465 U CN 220210465U
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- 238000004891 communication Methods 0.000 title claims abstract description 135
- 230000005540 biological transmission Effects 0.000 title claims abstract description 23
- 238000006243 chemical reaction Methods 0.000 claims description 5
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- 238000010586 diagram Methods 0.000 description 6
- 230000004044 response Effects 0.000 description 5
- 230000002159 abnormal effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012790 confirmation Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Abstract
The application provides an internal communication device and system of a multi-motor transmission system, wherein the device comprises: a master station and at least one slave station; the master station comprises at least one first type interface and at least one second type interface; at least one slave station is connected to at least one second type interface, respectively. At least one first type interface is communicated with external equipment, and each first type interface adopts an external communication mode different from other first type interfaces; the second type interface communicates with at least one slave station by adopting an internal communication mode; the master station converts communication data of the external device, which is encapsulated in a different communication manner, with communication data of the at least one slave station, which is encapsulated in an internal communication manner, to enable communication between the external device and the at least one slave station. According to the scheme, at least one first type interface is arranged at the master station to communicate with external equipment, and the second type interface is arranged at the slave station to communicate with the external equipment, so that the multi-motor transmission system can communicate with the external equipment through a plurality of different communication modes.
Description
Technical Field
The disclosed embodiments of the present application relate to the field of communication technology, and more particularly, to an internal communication device and system for a multi-motor drive system.
Background
In a multi-motor transmission system (hereinafter referred to as a multi-transmission system), data interaction is generally required between a plurality of master-slave devices and between the plurality of master-slave devices and an external device.
In order to meet the requirement of data interaction, communication interfaces are usually installed on each device so as to facilitate the mutual data interaction, however, in this way, the communication manner which can be supported is single.
Therefore, how to enable a multi-transmission system to support more communication modes is a problem to be solved.
Disclosure of Invention
According to an embodiment of the application, an internal communication device and system of a multi-motor transmission system are provided, so that the multi-transmission system can support more communication modes.
According to one aspect of the present application, an exemplary internal communication device of a multi-motor drive system is disclosed, comprising: a master station and at least one slave station; the master station comprises at least one first type interface and at least one second type interface; at least one secondary station is connected to the at least one second type interface, respectively. The at least one first type interface is used for communicating with external equipment, and each first type interface adopts an external communication mode different from other first type interfaces; the second type interface communicates with the at least one slave station by adopting an internal communication mode; the master station is configured to convert communication data of the external device, which is encapsulated in a different communication manner, with communication data of the at least one slave station, which is encapsulated in an internal communication manner, so as to realize communication between the external device and the at least one slave station.
According to the scheme, at least one first type interface is arranged on the master station and used for communicating with the external equipment, the second type interface is used for communicating with the slave station, the slave station is respectively connected to the second type interface, and different external communication modes can be supported by different first type interfaces, so that the multi-transmission system can communicate with the external equipment through a plurality of different communication modes.
Wherein the master station further comprises: and the gateway module is used for converting the communication data of the external equipment, which are packaged in different communication modes, and the communication data of the at least one slave station, which are packaged in internal communication modes, so as to realize the communication between the external equipment and the at least one slave station.
Wherein the gateway module further comprises: a protocol unit, configured to parse communication data encapsulated by the external device in different communication modes, and convert the communication data encapsulated by the slave station in the internal communication mode into communication data encapsulated by the external device in different communication modes; and the instruction conversion unit is used for converting the communication data analyzed by the protocol unit into the communication data packaged in the internal communication mode.
According to the scheme, the gateway module is used for realizing data interaction between the slave station and the master station, so that the software maintenance difficulty is simplified, and the abnormal area can be searched in time when communication is abnormal.
Wherein the protocol unit is coupled to the at least one first type of interface.
Wherein the gateway module further comprises: and the command unit is used for determining a slave station which communicates with the external equipment.
Wherein the command unit is coupled to the at least one second type of interface.
According to the scheme, the command unit controls the communication between the secondary station and the primary station to be orderly carried out, so that the probability of system breakdown can be reduced.
Wherein the at least one slave station is connected to at least one bus, respectively, the at least one bus being connected to the at least one second type interface.
According to the scheme, the slave station is connected to the second type interface through the bus, wiring is further simplified, and the system failure rate is reduced.
Wherein, the bus has two.
By means of the scheme, the probability of system breakdown caused by overlarge bus load rate can be reduced.
The at least one first type of interface comprises at least one of a CanOpen interface, a Modbus interface, an EtherCat interface, a ProfiNet interface, a Profibus-DP interface and a USB interface.
According to another aspect of the present application, an internal communication system of a multi-motor transmission system is disclosed, which includes at least one external device selected from a Programmable Logic Controller (PLC), an external keyboard, and an upper computer, and an internal communication device of the multi-motor transmission system of the first aspect.
According to the scheme, at least one first type interface is arranged on the master station and used for communicating with external equipment, the second type interface is used for communicating with the slave station, the slave station is respectively connected to the second type interface, and different external communication modes can be supported by different first type interfaces, so that the multi-motor transmission system can communicate with the external equipment through a plurality of different communication modes.
Drawings
The application will be further described with reference to the accompanying drawings and embodiments, in which:
FIG. 1 is a schematic diagram of an internal communication device of the multiple motor drive system of the present application;
FIG. 2 is a schematic diagram of a rectifier module of the present application;
fig. 3 is a schematic structural diagram of an internal communication system of the multi-motor drive system of the present application.
Detailed Description
In order to enable those skilled in the art to better understand the technical solutions of the present application, the technical solutions of the present application are described in further detail below with reference to the accompanying drawings and the detailed description.
The application provides an internal communication device and an internal communication system of a multi-motor transmission system, which can be applied to a multi-transmission system so that the multi-transmission system can interact data with external equipment through various communication modes; the application field is not limited to a multi-transmission system, but can be applied to other systems which have multiple master-slave devices and need to interact data with external devices in a drive control system; the present application is further described herein with reference to an intercom device and system in a multi-pass system.
Referring to fig. 1, fig. 1 is a schematic structural diagram of an internal communication device of a multi-motor transmission system according to the present application; in particular, the internal communication means of the multi-motor drive system comprises a master station 10 and at least one slave station 20; the primary station 10 comprises at least one first type of interface 11 and at least one second type of interface 12; at least one secondary station 20 is connected to at least one second type interface 12, respectively. Wherein, at least one first type interface 11 is used for communicating with an external device, each first type interface 11 adopts an external communication mode different from other first type interfaces 11; the second type interface 12 communicates with at least one secondary station 20 using internal communication means; the master station 10 is configured to convert communication data of an external device, which is encapsulated in a different communication manner, with communication data of at least one slave station 20, which is encapsulated in an internal communication manner, so as to enable communication between the external device and the at least one slave station 20.
In some possible implementations, the at least one first type of interface 11 includes at least one of a CanOpen interface, a Modbus interface, an EtherCat interface, a ProfiNet interface, a Profibus-DP interface, a USB interface; of course, the above only exemplifies some of the currently mainstream communication modes, and the first type of interface 11 may also be an interface supporting other communication modes, which is not only exemplified herein.
In one possible implementation scenario, the first type of interface 11 may also include a Serial Peripheral Interface (SPI), an RS-485 interface, etc., which may be used to connect to an external keyboard, etc.
In a possible embodiment, the at least one secondary station 20 is connected to at least one bus 30, respectively, the at least one bus 30 being connected to the at least one second type interface 12. In a specific implementation scenario, the connection between each secondary station 20 and the primary station 10 may be performed by using a CAN bus, and the internal communication manner may be a CAN communication manner. The slave stations 20 are connected to the master station 10 through the CAN bus uniformly, and the master station 10 converts the internal communication mode into the external communication mode to perform data interaction with external equipment, so that the slave stations 20 do not need to be individually connected and an independent communication interface is not required.
In one possible implementation, there may be two buses 30. In order to avoid communication anomalies caused by excessive load rates due to excessive data volumes of the buses 30 in the case of using a single bus 30 to connect all the slaves 20 in the system, each of the slaves 20 may be connected to two buses 30, and correspondingly, there may be two interfaces 12 of the second type for connecting two CAN buses respectively; alternatively, in other possible embodiments, the number of buses may be set to 3, 4, etc., and the number of buses and the number of the second type interfaces 12 may be set according to actual needs, which is not limited in this application.
In a specific implementation scenario, where there are multiple CAN buses, each CAN bus and the second type interface 12 may connect only a portion of the slave stations 20 to transmit and receive data from a portion of the slave stations 20, and may also connect all of the slave stations 20, which is not limited herein.
In the above scheme, only the master station 10 is provided with the plurality of first type interfaces 11 and the plurality of second type interfaces 12, the slave stations 20 do not need to be provided with interfaces separately, and the external equipment can access all the slave stations 20 only after being connected with the master station 10, so that the number of hardware interfaces of the system can be reduced, and the wiring complexity is reduced.
Referring to fig. 2, fig. 2 is a schematic structural diagram of a rectifying module in the present application; in one possible embodiment, the primary station 10 further comprises: the gateway module 100 is configured to convert communication data of the external device, which is encapsulated in a different communication manner, and communication data of the at least one slave station 20, which is encapsulated in an internal communication manner, so as to implement communication between the external device and the at least one slave station 20.
The data transmitted and received by the gateway module 100 includes periodic process data and response service data; the periodic process data is used for transmitting real-time data, namely unidirectional transmission, and the receiving node does not need to respond to confirmation; the biggest characteristic of response service data is that a response message needs to be generated for each sent message to feed back, so as to ensure the accuracy of data transmission.
In a specific implementation scenario, the gateway module 100 may be disposed in a rectifying device of a multi-motor transmission system, that is, the master station 10 herein may be a rectifying device of a multi-motor transmission system, and the slave station 20 may be a servo drive device, an inverter device, a stepper motor, etc. of a multi-motor transmission system.
In one possible implementation, the gateway module 100 further includes: a protocol unit 110 for parsing communication data encapsulated in different communication modes by the external device and converting the communication data encapsulated in the internal communication mode of the slave station 20 into communication data encapsulated in different communication modes by the external device; the instruction converting unit 120 is configured to convert the communication data parsed by the protocol unit 110 into communication data encapsulated in an internal communication manner.
The protocol unit 110 is used as a portal for the gateway module 100 to communicate with external devices, and the functions performed by the protocol unit mainly include analysis of external communication data and conversion of internal communication data; after receiving the communication data sent by the external device, the gateway module 100 may not directly send the external communication data to each slave station 20 because the external communication mode and the internal communication mode may be different, and because the gateway module 100 supports a plurality of different external communication modes, the external communication data needs to be analyzed; specifically, parsing communication data encapsulated by the external device in different communication modes may include: analyzing a background communication command sent by an upper computer in a usb communication mode, externally arranging communication data sent by a Modbus-RTU, canOpen, etherCAT, profinet, profibus-DP protocol and the like by a PLC and externally guiding a keyboard to read and write parameters sent by the Modbus protocol, a program burning command, an extended IO input state, an operation of a body keyboard function code, a motor control command and the like; in addition, it is also necessary to convert the communication data encapsulated in the internal communication scheme transmitted from each slave station 20 into communication data encapsulated in the corresponding external communication scheme so that the corresponding external device can be correctly recognized.
The protocol unit 110 is coupled to at least one first type of interface 11. The coupling connection between the protocol unit 110 and the first type interface 11 may be a wired connection or a wireless connection; the protocol unit 110 may be directly electrically connected to the first type interface 11, or may be electrically connected to the first type interface 11 through other means.
The instruction conversion unit 120 is configured to convert the communication data parsed by the protocol unit 110 into communication data encapsulated in an internal communication manner, and specifically may include: station number (indicating to which slave station 20 the external communication data needs to be sent), command (including instructions of reading, writing, etc.), parameter address (i.e., address of command operation), parameter number (i.e., number of single operation data), data (transmitted data value); and in the case of transmitting and receiving response service data, each of the slave stations 20 needs to respond to the transmitted external communication data of the external device, and the response data of the slave station 20 is input to the instruction conversion unit 120 to be converted into a plurality of outputs and then transmitted to each of the external devices through the protocol unit 110.
In one possible implementation, the gateway module 100 further includes: a command unit 130 for determining the secondary station 20 communicating with the external device. Since the master station 10 may need to be connected to multiple slave stations 20, the ordering of the data interactions between the multiple slave stations 20 and the master station 10 is important, otherwise it may cause a system crash; when there are a plurality of slave stations 20 having a need for data interaction with the master station 10, the command unit 130 may determine the order in which each slave station 20 has a need for data interaction with the master station 10, that is, when there are a plurality of slave stations 20 having a need for data interaction with the master station 10 in the same time period, the command unit 130 may determine which slave station 20 has a need for data interaction with the master station 10 in the present time period.
The command unit 130 is coupled to at least one second type of interface 12. The coupling connection between the command unit 130 and the second type interface 12 may be a wired connection or a wireless connection; the command unit 130 may be directly electrically connected to the second type interface 12, or may be electrically connected to the second type interface 12 through other means.
According to the scheme, the gateway module 100 is used for realizing data interaction between the slave station 20 and the master station 10, so that the software maintenance difficulty is simplified, and the abnormal area can be searched in time when communication is abnormal.
Referring to fig. 3, fig. 3 is a schematic structural diagram of an internal communication system 300 of the multi-motor transmission system of the present application; an internal communication system 300 of a multi-motor transmission system includes at least one external device selected from a programmable logic controller 320 (PLC), an external keyboard 330, and an upper computer 340, and an internal communication device 310 of the multi-motor transmission system according to the first aspect.
According to the scheme, at least one first type interface is arranged on the master station and used for communicating with external equipment, the second type interface is used for communicating with the slave station, the slave station is respectively connected to the second type interface, and different external communication modes can be supported by different first type interfaces, so that the multi-motor transmission system can communicate with the external equipment through a plurality of different communication modes.
Those skilled in the art will readily appreciate that many modifications and variations are possible in the device and method while maintaining the teachings of the present application. Accordingly, the above disclosure should be viewed as limited only by the scope of the appended claims.
Claims (10)
1. An intercom device of a multi-motor transmission system, comprising:
a primary station comprising at least one first type of interface and at least one second type of interface;
at least one slave station respectively connected to the at least one second type interface;
the at least one first type interface is used for communicating with external equipment, and each first type interface adopts an external communication mode different from other first type interfaces; the second type interface communicates with the at least one slave station by adopting an internal communication mode; the master station is configured to convert communication data of the external device, which is encapsulated in a different communication manner, with communication data of the at least one slave station, which is encapsulated in an internal communication manner, so as to realize communication between the external device and the at least one slave station.
2. The apparatus of claim 1, wherein the master station further comprises:
and the gateway module is used for converting the communication data of the external equipment, which are packaged in different communication modes, and the communication data of the at least one slave station, which are packaged in internal communication modes, so as to realize the communication between the external equipment and the at least one slave station.
3. The apparatus of claim 2, wherein the gateway module further comprises:
a protocol unit, configured to parse communication data encapsulated by the external device in different communication modes, and convert the communication data encapsulated by the slave station in the internal communication mode into communication data encapsulated by the external device in different communication modes;
and the instruction conversion unit is used for converting the communication data analyzed by the protocol unit into the communication data packaged in the internal communication mode.
4. The apparatus of claim 3, wherein the device comprises a plurality of sensors,
the protocol unit is coupled to the at least one first type of interface.
5. The apparatus of claim 3, wherein the gateway module further comprises:
and the command unit is used for determining a slave station which communicates with the external equipment.
6. The apparatus of claim 5, wherein the device comprises a plurality of sensors,
the command unit is coupled to the at least one second type of interface.
7. The apparatus of claim 1, wherein the device comprises a plurality of sensors,
the at least one slave station is connected to at least one bus, respectively, which is connected to the at least one second type interface.
8. The apparatus of claim 7, wherein the device comprises a plurality of sensors,
the number of buses is two.
9. The apparatus of claim 1, wherein the at least one first type of interface comprises at least one of a CanOpen interface, a Modbus interface, an EtherCat interface, a ProfiNet interface, a Profibus-DP interface, a USB interface.
10. An internal communication system of a multi-motor transmission system, comprising at least one external device of a Programmable Logic Controller (PLC), an external keyboard and an upper computer, and further comprising the internal communication device of the multi-motor transmission system according to any one of claims 1 to 9.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320777763.1U CN220210465U (en) | 2023-04-10 | 2023-04-10 | Internal communication device and system of multi-motor transmission system |
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| CN202320777763.1U CN220210465U (en) | 2023-04-10 | 2023-04-10 | Internal communication device and system of multi-motor transmission system |
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| CN220210465U true CN220210465U (en) | 2023-12-19 |
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| CN202320777763.1U Active CN220210465U (en) | 2023-04-10 | 2023-04-10 | Internal communication device and system of multi-motor transmission system |
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