CN217656706U

CN217656706U - Network adapter and control system

Info

Publication number: CN217656706U
Application number: CN202220568505.8U
Authority: CN
Inventors: 周招弟; 魏君燕; 俞益锋; 方双全; 姜泽; 张海南; 苏阳阳
Original assignee: Wolong Electric Group Co Ltd
Current assignee: Wolong Electric Drive Group Co Ltd
Priority date: 2022-03-16
Filing date: 2022-03-16
Publication date: 2022-10-25
Anticipated expiration: 2032-03-16

Abstract

The utility model discloses a network adapter and control system. Wherein, this network adapter includes: the Ethernet communication module is used for receiving a target instruction sent by the control end; the serial communication module is used for respectively receiving the operating data of different motor clusters based on the plurality of ports; and the central processing unit is respectively connected with the Ethernet communication module and the serial communication module and is used for determining configuration data of a serial data communication protocol corresponding to the motor cluster, processing the operation data acquired according to the configuration data according to a target instruction, and sending a processing result to the control end through the Ethernet communication module or sending the processing result to the corresponding motor cluster through the serial communication module. The utility model provides an unable two-way mutual technical problem who effectively realizes motor cluster and control end among the correlation technique.

Description

Network adapter and control system

Technical Field

The utility model relates to a motor control technical field particularly, relates to a network adapter and control system.

Background

An Electric Commutation (EC) motor is widely used in Heating, ventilation and Air Conditioning (HVAC) and refrigeration fields, especially in data centers, building and breeding centers and other places. The working scene requires that a plurality of motors are clustered on the spot, and the system function is realized by controlling the linkage of the plurality of motors. To realize the bidirectional interaction between the cluster motor and the control end, the following schemes are generally adopted, wherein the following technical problems exist:

(1) And an industrial router is used for helping the motor to realize data uploading through a communication interface matched with the motor. But the method can generally only complete ordinary data transparent transmission and cannot perform control management; in an actual field, the types and the number of data protocols are numerous, and the router cannot analyze the protocols and only transmits the protocols to the server, so that the construction difficulty of the server is increased.

(2) And interacting with an upper computer through a communication protocol converter. Because the number of motors is large, a plurality of different controllers exist, a specific communication program needs to be customized to be matched with the different controllers, and a common strategy is to adopt different converters, so that the operation is inconvenient and the process is complex.

(3) When the motors with the same protocol use the gateway to communicate with the upper computer, the motors are usually placed in the same network segment, each motor device is allocated with an IP address, and theoretically, 253 devices are connected at most, which is insufficient in a large-scale scene.

In view of the above-mentioned problem that the bidirectional interaction between the motor cluster and the control end cannot be effectively realized in the related art, an effective solution has not been proposed yet.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a network adapter and control system to at least, can't effectively realize the two-way interactive technical problem of motor cluster and control end in solving the correlation technique.

According to an aspect of the embodiments of the present invention, there is provided a network adapter, including: the Ethernet communication module is used for receiving a target instruction, wherein the target instruction is an instruction which is sent by the control end and used for indicating an operation to be executed; the serial communication module is used for respectively receiving the operating data of different motor clusters based on the plurality of ports; and the central processing unit is respectively connected with the Ethernet communication module and the serial communication module, and is used for determining configuration data of the serial data communication protocol corresponding to the motor cluster, processing the operation data acquired according to the configuration data according to the target instruction, and sending a processing result to the control terminal through the Ethernet communication module or sending the processing result to the motor cluster through the serial communication module.

Optionally, the ethernet communication module includes at least one ethernet data interface, and a communication Protocol supported by the ethernet data interface is a Transmission Control Protocol/Internet Protocol (TCP/IP).

Optionally, each of the ports externally connects one of the motor clusters using a predetermined serial bus.

Optionally, each of the ports supports a different serial data communication protocol, and motors in the motor cluster use the same serial data communication protocol.

Optionally, the network adapter further comprises: and the storage module is connected with the central processing unit and used for storing the configuration data and the operation data of the motor cluster.

Optionally, the storage module is a charged erasable programmable read only memory.

Optionally, the charged erasable programmable read only memory includes a plurality of registers, where the registers are used to store configuration data and operation data corresponding to motors of different brands and models.

Optionally, the motor is an electronic commutation motor, wherein a predetermined number is used to represent the electronic commutation motor, and a predetermined group number is used to represent the motor cluster where the electronic commutation motor is located.

Optionally, the configuration data comprises at least one of: baud rate, data bits, stop bits, parity bits.

According to the utility model discloses an on the other hand, still provide a control system, include: the switch is respectively connected with the server, the at least one PC and the at least one adapter, wherein the adapter is any one of the network adapters.

In an embodiment of the present invention, the network adapter includes: the Ethernet communication module is used for receiving a target instruction sent by the control end; the serial communication module is used for respectively receiving the operating data of different motor clusters based on the plurality of ports; the central processing unit is respectively connected with the Ethernet communication module and the serial communication module and is used for determining configuration data of a serial data communication protocol corresponding to the motor cluster and processing operation data acquired according to the configuration data according to a target instruction, and sending a processing result to the control end through the Ethernet communication module or to the corresponding motor cluster through the serial communication module.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention. In the drawings:

fig. 1 is a schematic diagram of a network adapter according to an embodiment of the present invention;

fig. 2 is a schematic diagram of an EC motor with a one-to-many network adapter that can simultaneously implement communication control of multiple devices in accordance with an alternative embodiment of the present invention;

fig. 3 is a schematic diagram of multiple adapters being connected to multiple PCs or servers simultaneously through a switch, according to an alternative embodiment of the present invention.

Wherein the figures include the following reference numerals:

10. a network adapter; 12. an Ethernet communication module; 14. a serial communication module; 16. a central processing unit; 30. a switch; 32. a server; 34. a PC machine.

Detailed Description

In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying 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 efforts shall belong to the protection scope of the present invention.

It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Example 1

According to an aspect of the embodiments of the present invention, there is provided a network adapter, which can be applied to a complex situation including but not limited to a plurality of different motor clusters distributed at different positions, fig. 1 is a schematic diagram of the network adapter according to the embodiments of the present invention, as shown in fig. 1, the network adapter 10 includes: the ethernet communication module 12 is configured to receive a target instruction sent by the control end; the serial communication module 14 is used for receiving the operation data of different motor clusters based on a plurality of ports; and the central processor 16 is connected to the ethernet communication module 12 and the serial communication module 14, and configured to determine configuration data of a serial data communication protocol corresponding to the motor cluster, process operation data obtained according to the configuration data according to a target instruction, and send a processing result to the control end through the ethernet communication module 12 or send the processing result to the corresponding motor cluster through the serial communication module 14.

The target instruction is an instruction sent by the control terminal and used for indicating an operation to be executed, and the operation to be executed comprises at least one of the following operations: the first operation and the second operation are two different operations. It should be noted that the first operation and the second operation may be any one of an inquiry operation and a control operation. In addition, in the implementation process, the operation to be performed includes, but is not limited to, a query operation or a control operation.

The network adapter comprises two data transmission modules, one is an ethernet communication module 12, and the other is a serial communication module 14, wherein the ethernet communication module 12 can be used for externally connecting a control terminal, and is used for receiving an operation command sent by the control terminal, that is, for receiving a target instruction; the serial communication module 14 may be used to externally connect different motor clusters, so that the module may receive operating data of different motor clusters.

The control terminal includes, but is not limited to, a PC, a server, and the like.

In an optional implementation manner, the network adapter 10 may perform, by using the central processing unit 16, a first conversion process on the operation data obtained according to the configuration data corresponding to the motor cluster according to the target instruction, and send the processed operation data to the control end through the ethernet communication module 12, so as to implement monitoring on the motor cluster. The first conversion processing at this time is to convert the operation data of the motor cluster, which is read according to the configuration data corresponding to the motor cluster, into a TCP/IP data packet. For example, when the target instruction is an inquiry instruction, the central processing unit acquires the operating data according to the instruction, converts the operating data into a data packet supporting TCP/IP, and sends the data packet out through the ethernet communication module.

In an optional implementation manner, the network adapter 10 may further perform a second conversion process on the operation data obtained by the central processing unit 16 according to the target instruction and the configuration data corresponding to the motor cluster, and send the processed operation data to the control end through the serial communication module 14, so as to implement control on the motor cluster. The second conversion processing at this time is to convert the operation data of the motor cluster to be adjusted into a corresponding control command according to the communication protocol rule corresponding to the motor cluster. For example, when the target instruction is a control instruction, the central processing unit analyzes the operating data adjusted according to the instruction, converts the operating data into a corresponding control command according to the serial communication protocol rule, and sends the control command out through the serial communication module, wherein the control command is used for controlling any one motor in the motor cluster.

In an alternative embodiment, the configuration data includes, but is not limited to, baud rate, data bits, stop bits, parity bits, and the like. The operational data of the motor cluster includes, but is not limited to, the speed, current, power, torque, maximum speed, steering, etc. of each motor. Further, the network adapter 10 not only can realize simple transparent transmission of data, but also can complete batch reading of information such as query of rotating speed, current, power, torque and the like under the condition of motor state expansion, and setting of multiple operations such as maximum rotating speed, steering, rotating speed and the like, thereby becoming a control center of a motor cluster and meeting the use requirements of operators.

The above embodiment of the utility model provides an in the above-mentioned embodiment, can realize through this network adapter 10 that the control end monitors and controls motor cluster, has reached the two-way interactive purpose of motor cluster and control end to realized satisfying the data transmission demand, reducing debug time and improving work efficiency's technological effect, and then solved the two-way interactive technical problem who can't effectively realize motor cluster and control end among the correlation technique.

In an alternative embodiment, the ethernet communication module 12 includes at least one ethernet data interface, and the communication protocol supported by the ethernet data interface is transmission control protocol/internet protocol.

The ethernet data interface serves as the only interface for the communication interaction between the network adapter 10 and the control end, and supports TCP/IP. In a specific implementation process, other communication protocols besides TCP/IP may also be used between the network adapter 10 and the control end, and details are not described herein.

In an alternative embodiment, each port supports a different serial data communication protocol, and the motors in the motor cluster use the same serial data communication protocol.

It should be noted that the serial communication module 14 includes a plurality of ports, and each port of the serial communication module 14 supports different serial data communication protocols, so as to meet data transmission requirements of different application scenarios. The same motor cluster uses the same serial communication module 14 port and employs the same serial data communication protocol.

In an optional embodiment, each port is connected to one motor cluster.

Each port of the serial communication module 14 may be externally connected to a motor cluster, and since the motor cluster includes a plurality of electronic commutation motors, and each electronic commutation motor can communicate with another electronic commutation motor, each port of the serial communication module 14 may implement communication of a plurality of electronic commutation motors, so that the ports may be used to obtain motor operation data of different motor clusters.

In an alternative embodiment, each port is externally connected to a motor cluster using a predetermined serial bus. In addition, the motor may be an electronic commutation motor, wherein the electronic commutation motor may be represented by a predetermined number, and a motor cluster in which the electronic commutation motor is located may be represented by a predetermined group number.

Such predetermined serial buses include, but are not limited to, RS-232, RS-422, RS-485, etc. In addition, a predetermined group number and a predetermined number can be used for identifying the motor cluster and the electronic commutation motor; for example, the group number corresponding to the first motor cluster is a, the group number corresponding to the first motor cluster is B, the group number corresponding to the first motor cluster is C, and the like. For another example, the first electronic commutation motor in the motor cluster is numbered 1, the second electronic commutation motor is numbered 2, and the third electronic commutation motor is numbered 3. It should be noted that the predetermined group number and the predetermined number can be flexibly set according to the requirements of the application scenario, and specific implementations thereof include, but are not limited to, the above situations.

In an optional implementation, the network adapter 10 further includes: and the storage module is connected with the central processing unit 16 and is used for storing the configuration data and the operation data of the motor cluster. The storage module is an electrified erasable programmable read-only memory.

The electrified erasable programmable read-only memory is a memory chip with no data loss after power failure, and is convenient for erasing existing information on a network adapter and reprogramming.

In an alternative embodiment, the electrically erasable programmable read only memory includes a plurality of registers, wherein the registers are used for storing configuration data and operation data corresponding to different brands and models of motors.

In the above embodiment, the configuration data and the operation data corresponding to the motor may be stored in a designated register according to the brand model of the motor, so as to facilitate subsequent reading and writing of the stored data.

Example 2

According to the utility model discloses on the other hand of the embodiment, still provide a control system, this control system includes: the network adapter comprises a switch, a server, at least one PC and at least one adapter, wherein the switch is respectively connected with the server, the at least one PC and the at least one adapter, and the adapter is the network adapter 10.

In the specific implementation process, the data of the PC and the network adapter of the control system are not limited at all, and can be set according to the requirements of application scenarios.

An alternative embodiment of the invention is described in detail below.

Fig. 2 is a schematic diagram of an EC motor according to an alternative embodiment of the present invention, in which a one-to-many network adapter can simultaneously implement communication control of multiple devices, and as shown in fig. 2, the network adapter 10 mainly includes a central processing unit 16, an ethernet communication module 12 for communicating with a control end, and a serial communication module 14 for communicating with the motor; the ethernet communication module 12 and the serial communication module 14 are both connected to a central processor 16.

Fig. 3 is a schematic diagram of a plurality of adapters connected to a plurality of PCs or servers through a switch at the same time, as shown in fig. 3, in a large-scale scenario, a plurality of network adapters 10 may be connected to a server 32 or a plurality of PCs 34 through a switch 30 at the same time, so that bidirectional interaction between a motor cluster and a control end can be realized by using the plurality of adapters respectively.

The Ethernet communication module 12 is connected with control terminals such as a PC (personal computer), a server and the like; the serial communication module 14 can be connected with the motor through serial buses such as RS-232 and RS-485; the memory module is connected to the central processor 16 and places configuration data, motor operating data, etc. in the non-volatile memory.

The motor is connected to the network adapter 10 via a serial interface. The control end uses TCP/IP to communicate with the network adapter 10, and configures data including baud rate, data bit, stop bit, parity bit, etc. of each port motor. After the configuration is completed, the adapter starts to work. The connected motors communicate with each other according to respective protocols, the motor operation data is sent to the network adapter 10, and the central processing unit 16 disassembles and stores the data in the motor operation data into corresponding registers, so that multiple protocol communications in the same network are realized.

The multiple motors are connected and installed on site in a one-level bus structure, and the motor operation data are arranged at different ports according to brands and are stored in groups by the starting address of the power panel. The control end realizes the information monitoring function of the motor by reading a corresponding register in the network adapter 10; the control end writes a specific register in the adapter, and the central processing unit 16 recodes the information to be sent into a protocol transmission frame required by the motor to be controlled and sends the protocol transmission frame to the corresponding motor, so that the control function of the motor can be realized. The grouping motors can be set in batches through a unified master control group number.

It should be noted that the network adapter 10 may convert and encapsulate the received multiple protocol response data into a single protocol, and provide a standard ethernet data interface for the control end. Therefore, the network adapter 10 can realize coexistence communication between the control end and multiple protocols in the same network, and is easy to expand to cover other protocols; the communication program corresponding to the control end can realize standardization, the general applicability of the program is improved, and meanwhile, the debugging time is also reduced. The network adapter 10 can also realize communication between the control end and a plurality of ports, and a plurality of motors at each port are grouped and clustered, so that monitoring and control of a plurality of motors are realized by only one upper computer device such as a PC (personal computer), a server and the like. In addition, the network adapter 10 can simultaneously control the communication of a plurality of ports, each port is connected with wiring in series, the number of the connected motors can reach ten thousands, and the working efficiency is greatly improved.

In an optional embodiment of the present invention, the control end may connect to perform TCP/IP communication according to the IP address and port number of the network adapter 10; the network adapter 10 determines the configuration of the communication protocol of the relevant motor according to the brand model of the relevant motor connected to the monitoring channel, and the configuration includes data such as baud rate, data bit, stop bit, parity bit and the like of the motor of each port.

After the configuration is completed, the network adapter 10 starts to work, the motor operation information of different brands and models of each channel is read back, and the storage module of the network adapter 10 stores the motor operation information into the corresponding register. In the specific implementation process, a plurality of motors are connected and installed on site in a primary bus structure, and motor information data are arranged at different ports according to brand models and are stored in groups by using the initial addresses of the power panels.

When monitoring the motor, the network adapter 10 receives a TCP/IP command from the control end and then analyzes the command to obtain information to be obtained, and further reads data in a register corresponding to the storage module and encapsulates the data into a TCP/IP specification, and sends the TCP/IP specification to the control end through the ethernet communication module 12; when controlling the motor, the network adapter 10 recodes the data into a protocol transmission frame required by the motor to be controlled according to the motor master control group number and the motor number which are required to be controlled by the rewriting of the relevant register of the control end and the setting command and the parameter of the control end to the motor, and sends the protocol transmission frame to the motor through the serial communication module 14.

It should be noted that, when the motor cluster control is performed, the specific implementation process is similar to the above embodiment, and after the motor group number to be controlled is obtained, the same group is controlled in batch. At this time, only one upper computer device such as a PC and a server is needed to monitor and control the plurality of motors.

Further, when the motor communication protocol needs to be modified and expanded, the network adapter 10 is connected with the control end, and then the brand and the model of the motor and the corresponding communication protocol setting are added or modified through programming of the control end, and the configuration data is stored in a corresponding register of the network adapter 10, so that multiple protocol communication in the same network is realized.

The above embodiment numbers of the present invention are only for description, and do not represent the advantages and disadvantages of the embodiments.

In the above embodiments of the present invention, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to the related descriptions of other embodiments.

In the embodiments provided in the present application, it should be understood that the disclosed technical content can be implemented in other manners. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units may be a logical division, and in actual implementation, there may be another division, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, units or modules, and may be in an electrical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one position, or may be distributed on a plurality of units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of 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 network adapter, comprising:

the Ethernet communication module is used for receiving a target instruction sent by the control end;

the serial communication module is used for respectively receiving the operating data of different motor clusters based on the plurality of ports;

the central processing unit is respectively connected with the Ethernet communication module and the serial communication module, and is used for determining configuration data of a serial data communication protocol corresponding to the motor cluster, processing the operation data acquired according to the configuration data according to the target instruction, and sending a processing result to the control end through the Ethernet communication module or sending the processing result to the corresponding motor cluster through the serial communication module;

each port is externally connected with one motor cluster by adopting a preset serial bus, each port supports different serial data communication protocols, and motors in the motor clusters adopt the same serial data communication protocol.

2. The network adapter according to claim 1, wherein the ethernet communication module comprises at least one ethernet data interface, and the communication protocol supported by the ethernet data interface is transmission control protocol/internet protocol.

3. The network adapter according to claim 1, wherein said network adapter further comprises: and the storage module is connected with the central processing unit and used for storing the configuration data and the operation data of the motor cluster.

4. The network adapter of claim 3, wherein the storage module is a powered erasable programmable read-only memory.

5. The network adapter according to claim 4, wherein the electrically erasable programmable read only memory comprises a plurality of registers, wherein the registers are used for storing configuration data and operation data corresponding to different brands of motors.

6. The network adapter according to any one of claims 1 to 5, wherein the motor is an electronically commutated motor, wherein the electronically commutated motor is characterized by a predetermined number, and wherein the motor cluster in which the electronically commutated motor is located is characterized by a predetermined group number.

7. The network adapter according to any of claims 1 to 5, wherein said configuration data comprises at least one of: baud rate, data bits, stop bits, parity bits.

8. A control system, comprising: the network adapter comprises a switch, a server, at least one PC and at least one adapter, wherein the switch is respectively connected with the server, the at least one PC and the at least one adapter, and the adapter is the network adapter of any one of the claims 1 to 7.