Integrated display control system, control method thereof and frequency conversion system

Abstract

The invention discloses an integrated display control system and a control method thereof, and a frequency conversion system. The integrated display control system comprises a display screen; the plurality of communication interfaces are used for being connected with a plurality of external devices; the controller is respectively connected with the display screen and the plurality of communication interfaces, a plurality of sub-devices of each external device are preset in the controller, different sub-devices correspond to different communication protocols, the plurality of sub-devices of each external device correspond to the same intermediate variable, and different external devices correspond to different intermediate variables. And the controller is used for controlling the corresponding sub-equipment to be in an activated state based on a communication protocol of the external equipment so as to receive equipment information of the external equipment through the corresponding sub-equipment, and controlling the display screen to display the equipment information based on the intermediate variable corresponding to the external equipment. The system activates the corresponding sub-device based on the communication protocol of the external device, and further displays the corresponding device information through the display screen, thereby realizing multi-protocol integrated display and control, improving the working efficiency and reducing the application cost.

Description

Technical Field

[0001] The present invention relates to the technical field of frequency conversion systems, and in particular to an integrated display and control system, a frequency conversion system and a control method for the integrated display and control system. Background Art

[0002] With the development of the times, the application scenarios of inverters are becoming more and more diverse, more and more complex, and more and more powerful. The addition of auxiliary systems has significantly improved the performance of inverters and made them applicable to a wider range of scenarios. However, each auxiliary system has its own independent display and control system, which is inconvenient to operate and increases hardware costs. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems in the related art to a certain extent. To this end, the first purpose of the present invention is to propose an integrated display and control system, which activates the corresponding sub-device based on the communication protocol of the external device, and then displays the device information of the corresponding external device through the display screen, thereby realizing multi-protocol integrated display and control, improving work efficiency, and reducing the hardware cost waste caused by the decentralized display and control of the system.

[0004] The second object of the present invention is to provide a frequency conversion system.

[0005] The third object of the present invention is to provide a control method for an integrated display and control system.

[0006] To achieve the above-mentioned purpose, the first aspect of the embodiment of the present invention proposes an integrated display and control system, which includes: a display screen; multiple communication interfaces for connecting to multiple external devices; a controller, the controller is respectively connected to the display screen and the multiple communication interfaces, the controller is pre-set with multiple sub-devices of each external device, different sub-devices correspond to different communication protocols, multiple sub-devices of each external device correspond to the same intermediate variables, and different external devices correspond to different intermediate variables. The controller is used to control the corresponding sub-device to be in an activated state based on the communication protocol of the external device, so as to receive device information of the external device through the corresponding sub-device, and control the display screen to display the device information based on the intermediate variables corresponding to the external device.

[0007] According to the integrated display and control system of the embodiment of the present invention, it is connected to multiple external devices through multiple communication interfaces, the controller is connected to the display screen and the multiple communication interfaces respectively, the controller is pre-set with multiple sub-devices of each external device, different sub-devices correspond to different communication protocols, multiple sub-devices of each external device correspond to the same intermediate variables, different external devices correspond to different intermediate variables, the controller is used to control the corresponding sub-device to be in an activated state based on the communication protocol of the external device, so as to receive the device information of the external device through the corresponding sub-device, and control the display screen to display the device information based on the intermediate variables corresponding to the external device. Thus, the system activates the corresponding sub-device based on the communication protocol of the external device, and keeps other sub-devices in an inactive state, so that other sub-devices do not occupy the communication thread, reasonably allocates communication resources, and then receives the device information of the external device through the sub-device in the activated state, and displays it through the display screen, which can realize flexible application scenario adaptation and improve work efficiency. Compared with the system decentralized display and control mode, the multi-protocol integrated display and control system greatly reduces the hardware cost.

[0008] In addition, the integrated display and control system according to the above embodiment of the present invention may also have the following additional technical features:

[0009] According to one embodiment of the present invention, the controller is also used to: receive a communication protocol selection instruction from a user through a display screen, and determine the communication protocol of the external device based on the communication protocol selection instruction; or, control multiple sub-devices of the external device to communicate with the external device through their respective corresponding communication protocols, and determine the communication protocol of the external device based on the communication results.

[0010] According to one embodiment of the present invention, the controller is also pre-installed with a parent device of each external device. The controller is also used to control the parent device of the external device to be in an activated state when the external device is connected to the corresponding communication interface, so as to configure the corresponding communication interface through the parent device, and after the interface configuration is completed, control the corresponding child device to be in an activated state based on the communication protocol of the external device.

[0011] According to one embodiment of the present invention, the controller is also used to: receive a device connection instruction from a user through a display screen, and determine that an external device is connected to a corresponding communication interface based on the device connection instruction; or, obtain a connection status signal of the communication interface, and determine that the external device is connected to the corresponding communication interface based on the connection status signal.

[0012] According to one embodiment of the present invention, the controller is also pre-set with a display interface of each external device, the display interface includes at least one display control, the intermediate variable corresponds to the display control, the controller is also used to assign device information to the intermediate variable through the corresponding sub-device, and control the display screen to display at least one display control to display the display interface of the external device, wherein the variable value of the intermediate variable is displayed in the display control.

[0013] According to an embodiment of the present invention, the controller is further configured to pre-process the device information through the corresponding sub-device, and assign the pre-processed device information to the intermediate variable.

[0014] According to one embodiment of the present invention, the controller is also pre-installed with a sub-device template for each external device, and the controller is also used to respond to a new protocol instruction and construct a corresponding sub-device based on the communication protocol and the sub-device template in the new protocol instruction.

[0015] According to one embodiment of the present invention, the integrated display and control system is applied to a frequency conversion system, and the external equipment includes one or more of a frequency converter, a water cooling device, a pre-charging device, an excitation device, and a temperature monitoring device.

[0016] To achieve the above-mentioned purpose, a second embodiment of the present invention proposes a frequency conversion system, including the above-mentioned integrated display and control system.

[0017] The frequency conversion system according to the embodiment of the present invention, based on the above-mentioned integrated display and control system, realizes flexible application scenario adaptation, improves work efficiency, and the multi-protocol integrated display and control reduces program version development and maintenance, while reducing system hardware costs.

[0018] To achieve the above-mentioned purpose, the third aspect of the embodiment of the present invention proposes a control method for an integrated display and control system, the integrated display and control system comprising a display screen and multiple communication interfaces for connecting to multiple external devices, the control method of the integrated display and control system comprising: presetting multiple sub-devices of each external device; wherein different sub-devices correspond to different communication protocols, multiple sub-devices of each external device correspond to the same intermediate variables, and different external devices correspond to different intermediate variables; based on the communication protocol of the external device, controlling the corresponding sub-device to be in an activated state, so as to receive device information of the external device through the corresponding sub-device, and controlling the display screen to display the device information based on the intermediate variables corresponding to the external device.

[0019] According to the control method of the integrated display and control system of the embodiment of the present invention, the integrated display and control system includes a display screen and multiple communication interfaces for connecting to multiple external devices. First, multiple sub-devices of each external device are preset, wherein different sub-devices correspond to different communication protocols, multiple sub-devices of each external device correspond to the same intermediate variables, and different external devices correspond to different intermediate variables. Then, based on the communication protocol of the external device, the corresponding sub-device is controlled to be in an activated state, so as to receive the device information of the external device through the corresponding sub-device, and the display screen is controlled to display the device information based on the intermediate variables corresponding to the external device. Thus, the method activates the corresponding sub-device based on the communication protocol of the external device, and keeps other sub-devices in an inactive state, so that other sub-devices do not occupy the communication thread, reasonably allocates communication resources, and then receives the device information of the external device through the sub-device in the activated state, and displays it through the display screen, which can realize flexible application scenario adaptation and improve work efficiency.

[0020] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A connection diagram of an integrated display and control system according to an embodiment of the present invention;

[0022] Figure 2 A connection diagram of an integrated display and control system according to an embodiment of the present invention;

[0023] Figure 3 A connection diagram of an integrated display and control system according to a specific embodiment of the present invention;

[0024] Figure 4 A configuration and application flow chart of an integrated display and control system according to an embodiment of the present invention;

[0025] Figure 5 is a block diagram of a frequency conversion system according to an embodiment of the present invention;

[0026] Figure 6 The figure is a flow chart of a control method of an integrated display and control system according to an embodiment of the present invention. DETAILED DESCRIPTION

[0027] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0028] The integrated display and control system, the frequency conversion system and the control method of the integrated display and control system proposed in the embodiments of the present invention are described below with reference to the accompanying drawings.

[0029] Figure 1 FIG. 4 is a connection diagram of an integrated display and control system according to an embodiment of the present invention.

[0030] like Figure 1 As shown, the integrated display and control system of the embodiment of the present invention includes: a display screen 10 , a plurality of communication interfaces 20 and a controller 30 .

[0031] Among them, multiple communication interfaces 20 are used to be respectively connected to multiple external devices 100. The controller 30 is respectively connected to the display screen 10 and the multiple communication interfaces 20. The controller 30 is pre-set with multiple sub-devices 31 of each external device 100. Different sub-devices 31 correspond to different communication protocols. Multiple sub-devices 31 of each external device 100 correspond to the same intermediate variable, and different external devices 100 correspond to different intermediate variables. The controller 30 is used to control the corresponding sub-device 31 to be in an activated state based on the communication protocol of the external device 100, so as to receive the device information of the external device 100 through the corresponding sub-device 31, and control the display screen 10 to display the device information based on the intermediate variable corresponding to the external device 100.

[0032] The communication interface 20 refers to a physical interface for connecting communication devices for information transmission, and may be a serial port, Ethernet port, 4G, WiFi (WIreless Fidelity, wireless network communication technology) or other communication interfaces. The communication protocol may include standard communication protocols and non-standard protocols based on serial ports, Ethernet ports, 4G, WiFi or other communication interfaces. For example, when the communication interface 20 is a serial port, the communication protocols that can be used based on the serial port are RS-232, RS-422, RS-485, etc.

[0033] The sub-device 31 is constructed based on different communication protocols and is used to receive and identify the transmission data using the corresponding communication protocol to achieve communication with the external device 100 using the corresponding communication protocol. The communication protocol of each sub-device 31 is independently encapsulated, and the sub-device 31 may have functions such as data communication table, configuration of communication attributes, establishment and status monitoring of communication, and reception and transmission of communication data. At the same time, the sub-device 31 may have a working status soft configuration interface for program reception and parameter configuration.

[0034] The intermediate variable is used to adjust the display interface of the display screen. Specifically, the intermediate variable sets the external device 100. By assigning the device information to the intermediate variable, the display screen is controlled to display the device information corresponding to the external device. For example, the intermediate variable may include the control parameter of the display control A. After the device information is assigned to the intermediate variable, if the control parameter of the display control A is 1, the display control A is lit; if the control parameter of the display control A is 0, the display control A is not lit. In addition, the display screen can be a touch screen, which can not only display, but also receive instructions based on user actions.

[0035] It is understandable that each external device 100 has a communication interface for communicating with the outside, and a corresponding communication protocol, and each external device 100 may have multiple communication protocols. The integrated display and control system can configure the communication interface 20 in the system according to the communication interface of the connected external device 100, and configure the sub-device 31 according to the communication protocol adopted by the external device 100. The use of the communication protocol and the external device 100 can be arbitrarily combined. For example, the communication interface 20 between the external device 100 and the integrated display and control system uses a serial port, and the communication protocols of the serial port used include: RS-232, RS-422 and RS-485. The controller 30 corresponds to three serial port protocols and sets three sub-devices 31 respectively.

[0036] Specifically, taking the external device 100 including the external device 1, the external device 2, ... the external device N as an example, the integrated display and control system configures the communication interface 20 and the sub-device 31 in the system according to the communication interface and communication protocol adopted by the external device.

[0037] Combination Figure 3 As shown, the integrated display and control system is connected to the external device 1 through the communication interface 1, is connected to the external device 2 through the communication interface 2, and so on, is connected to the external device N through the communication interface N, wherein the communication interface 1 is a serial port, and the communication protocols adopted by the external device 1 include RS-232 (protocol 11), RS-422 (protocol 12) and RS-485 (protocol 1N), and the controller 30 respectively sets sub-devices 11, 12, and 1N corresponding to the three communication protocols; the communication interface 2 adopts an Ethernet interface, and the communication protocols adopted by the external device 2 include ARP (Address Resolution Protocol) protocol (protocol 21), IP (Internet Protocol) protocol (protocol 22) and TCP (Transmission Control Protocol) protocol (protocol 2N), and the controller 30 respectively sets sub-devices 21, 22, and 2N corresponding to the three communication protocols, and so on, to set the subsequent sub-devices.

[0038] During the application process, all sub-devices are in a disabled state. When the controller 30 determines that the external device 1 is connected to the integrated display and control system through the communication interface 1 and the external device 1 adopts the protocol 1, the controller 30 controls the activation of the sub-device 1 and keeps the other sub-devices in a disabled state. The controller 30 receives the device information output by the external device 1 using the RS-232 protocol through the sub-device 1, and assigns the identified device information to the intermediate variable to control the display screen 10 to display the device information of the corresponding external device 1.

[0039] Therefore, the system first pre-establishes the communication interface 20 connected to all the external devices 100 involved, the sub-device 31 corresponding to the communication protocol adopted by the external device 100, and the intermediate variables corresponding to the external device 100 and the display interface of the display screen 100 based on the communication interface of the external device 100 and the adopted communication protocol, so as to facilitate the subsequent device selection and matching process. Then, the sub-device selection and matching process is performed according to the actual interface connection and the adopted communication protocol, that is, the sub-device 31 corresponding to the communication protocol adopted by the external device 100 is activated, and the other sub-devices 31 are in a deactivated state, so that the other sub-devices 31 do not occupy the communication thread, and the communication resources are reasonably configured. At the same time, the display screen 10 is controlled to display the corresponding device information through the intermediate variables, so that the display screen 10 is universal.

[0040] According to one embodiment of the present invention, the controller 30 is also used to: receive a user's communication protocol selection instruction through the display screen 10, and determine the communication protocol of the external device 100 based on the communication protocol selection instruction; or, control multiple sub-devices 31 of the external device 100 to communicate with the external device 100 through their respective corresponding communication protocols, and determine the communication protocol of the external device 100 based on the communication results.

[0041] Specifically, the controller 30 can determine the communication protocol of the external device 100 based on the communication protocol selection instruction input by the user through the display screen 10. For example, after the corresponding external device 100 is connected to the corresponding communication interface 20, the display screen 10 will light up the successfully connected communication interface 20 and display the communication protocol selection control corresponding to the communication interface 20. The user can input the communication protocol selection instruction by triggering the corresponding communication protocol selection control. The controller 30 determines the communication protocol selected by the user based on the communication protocol selection control triggered by the user, so as to determine the communication protocol of the external device 100 and control the activation of the corresponding sub-device 31.

[0042] In addition, after the external device 100 is successfully connected to the corresponding communication interface 20, the controller 30 controls the activation of multiple sub-devices 31 corresponding to the communication interface 20, and the multiple sub-devices 31 communicate with the external device 100 respectively, and the sub-device 31 that successfully communicates with the external device 100 is determined, and the communication protocol of the sub-device 31 is the same as the communication protocol of the external device 100, thereby determining the communication protocol adopted by the external device 100, controlling the sub-device 31 that successfully establishes communication with the external device 100 to remain activated, and restoring other sub-devices 31 to a deactivated state.

[0043] Combination Figure 2 As shown, according to one embodiment of the present invention, the controller 30 is also pre-installed with a parent device 32 of each external device 100. The controller 30 is also used to control the parent device 32 of the external device 100 to be in an activated state when the external device 100 is connected to the corresponding communication interface 20, so as to configure the interface of the corresponding communication interface 20 through the parent device 32, and after the interface configuration is completed, control the corresponding child device 31 to be in an activated state based on the communication protocol of the external device 100.

[0044] Specifically, the parent device 32 is an interface configuration module, which has the attribute configuration function of the communication interface 20 and the working status soft configuration interface. For example, each communication interface 20 is respectively provided with a parent device 32, and the parent device 32 is respectively connected to the communication interface 20 and the child device. In addition, multiple parent devices 32 with the same communication interface 20 can also be established, and multiple external devices 100 can be mounted under the parent device 32.

[0045] Reference Figure 2 As shown, when the external device 100 is connected to the communication interface 20, the controller 30 controls the activation of the parent device 32 corresponding to the external device 100, configures the interface of the corresponding communication interface 20 through the parent device 32, and after the interface configuration is completed, controls the activation of the corresponding sub-device 31 according to the communication protocol adopted by the external device 100, so as to communicate based on the sub-device 31 in the activated state.

[0046] According to one embodiment of the present invention, the controller 30 is also used to: receive a device connection instruction from the user through the display screen 10, and determine that the external device 100 is connected to the corresponding communication interface 20 based on the device connection instruction; or, obtain a connection status signal from the communication interface 20, and determine that the external device 100 is connected to the corresponding communication interface 20 based on the connection status signal.

[0047] Specifically, the controller 30 can determine that the external device 100 is connected to the corresponding communication interface 20 based on the device connection instruction sent by the user through the display screen 10. For example, the display screen 10 can be provided with interface controls corresponding to the communication interface 20 one by one. The user can send a device connection instruction by triggering the corresponding interface control. The controller 30 determines that the external device 100 is connected to the corresponding communication interface 20 based on the interface control selected by the user.

[0048] In addition, after the external device 100 is connected to the corresponding communication interface 20, the corresponding communication interface 20 may feed back a connection status signal to the controller 30, and the controller 30 may determine that the external device 100 is connected to the corresponding communication interface 20 based on the received connection status signal. For example, when the communication interface 20 is not connected to the external device 100, the connection status signal is a low level 0; when the communication interface 20 is connected to the external device 100, the connection status signal is a high level 1, and the controller 30 may determine that the external device 100 is connected to the corresponding communication interface 20 based on the high level connection status signal.

[0049] According to one embodiment of the present invention, the controller 30 is also pre-installed with a display interface of each external device 100, the display interface 10 includes at least one display control, the intermediate variable corresponds to the display control, and the controller 30 is also used to assign device information to the intermediate variable through the corresponding sub-device 31, and control the display screen 10 to display at least one display control to display the display interface of the external device 100, wherein the variable value of the intermediate variable is displayed in the display control.

[0050] Specifically, after the integrated display control system pre-establishes the parent device 32, the child device 31, the intermediate variables and the display interface according to the communication interface and communication protocol of the external device 100 involved, it associates the child device 31 with the intermediate variables and the intermediate variables with the interface components. During the application process, the system can perform the matching processing of the child device 31 based on the connected communication interface 20 and the communication protocol adopted by the external device 100, receive the device information of the external device 100 through the child device 31 in the activated state, and assign the device information to the intermediate variables to control the display screen 10 to display the display interface of the corresponding external device 100. Among them, the variable value of the intermediate variable can be used to control the lighting effect of the display control. For example, when the variable value of the intermediate variable after the device information is assigned is 1, the corresponding display control is controlled to light up; when the variable value of the intermediate variable after the device information is assigned is 0, the corresponding control is controlled not to be displayed.

[0051] For the same external device 100, when communication is completed through different sub-devices 31, the same display interface can be used, so that the display interface is universal when the communication protocol is switched. In addition, the displayed display interface may not be exactly the same. For example, when the system communicates with the external device 100 through the first sub-device, the display interface based on the device information output by the first sub-device may include display control 1 and display control 2; when the system communicates with the external device 100 through the second sub-device, the display interface based on the device information output by the second sub-device may include display control 2 and display control 3.

[0052] Therefore, the system combines the display interface of the display screen 10 according to the selected sub-device 31, and does not display the display interface corresponding to the unselected device, so that the display interface of the display screen 10 is intuitive and concise.

[0053] According to an embodiment of the present invention, the controller 30 is further configured to pre-process the device information through the corresponding sub-device 31 and assign the pre-processed device information to the intermediate variable.

[0054] That is to say, in addition to the communication function, the sub-device 31 also has a data processing function, which may include data scaling, data range limitation, filtering and other data calculation processing, as well as the docking processing of communication data and intermediate variables, that is, the sub-device 31 assigns the device information after data processing to the intermediate variables.

[0055] The integrated display and control system establishes corresponding parent devices 31, child devices 31 and different intermediate variables based on the external device 100, combines and selects different device drivers, namely child devices 31, according to different application scenarios, and realizes multi-device integrated display and control based on the association between the intermediate variables, the child devices 31 and the display interface.

[0056] According to one embodiment of the present invention, the controller 30 is also pre-installed with sub-device templates of various external devices. The controller 30 is also used to respond to new protocol instructions and construct corresponding sub-devices 31 based on the communication protocol and sub-device templates in the new protocol instructions.

[0057] That is to say, when the communication protocol of the external device 100 changes, such as adding a new communication protocol, for example, the user can send the corresponding new protocol instruction through the display screen 10, and the controller 30 determines the corresponding external device 100 and the new communication protocol based on the received new protocol instruction, selects the sub-device template of the corresponding external device 100, and constructs the corresponding sub-device 31 based on the new communication protocol and the sub-device template. For example, the external device 1 corresponds to sub-devices 11 and 12. When it is determined through the display screen 10 that a new communication protocol a is added to the external device A, the sub-device template a of the external device A is called, and the sub-device 1N is constructed based on the communication protocol a and the sub-device template a, thereby realizing the addition of the communication protocol. So far, in the system, the corresponding external device A is provided with sub-devices 11, 12 and 1N.

[0058] Therefore, the integrated display and control system of this embodiment achieves reasonable allocation of communication resources and flexible adaptation to application scenarios, while reducing program version development and maintenance, facilitating protocol addition, improving work efficiency, and integrating display and control of multiple systems to make operation more convenient.

[0059] According to an embodiment of the present invention, the integrated display and control system is applied to a frequency conversion system, and the external device 100 includes one or more of a frequency converter, a water cooling device, a pre-charging device, an excitation device, and a temperature monitoring device.

[0060] Specifically, taking the external device 100 including a frequency converter, a water cooling device, a pre-charging device, an excitation device and a temperature monitoring device as an example, the frequency converter, the water cooling device, the pre-charging device, the excitation device and the temperature monitoring device respectively have a device communication interface (such as a serial port, an Ethernet port, 4G, a wifi interface, etc.) for communicating with the outside, and respectively use corresponding communication protocols (such as standard protocols and non-standard protocols corresponding to the serial port, the Ethernet port, 4G, the wifi, etc.) to communicate with the outside. The integrated display and control system determines the communication interface 20, the parent device 32, and the child device 31 corresponding to each external device 100 according to the device communication interface of each external device 100 and the communication protocol adopted by each external device 100, and further determines the intermediate variables corresponding to each external device 100, thereby realizing the pre-establishment of the integrated display and control system.

[0061] During the application process, the integrated display and control system controls the corresponding sub-device 31 to activate according to the connected external device 100 and the communication protocol adopted by the external device 100, so that other sub-devices 31 are in an inactive state, thereby receiving the device information of the external device 100 based on the activated sub-device 31, and preprocessing the device information. The preprocessed device information 100 is assigned to the intermediate variable to control the display screen to display the device information.

[0062] It should be noted that when the integrated display and control system is applied to the frequency conversion system, in addition to the above-mentioned frequency converter 110, water cooling equipment 120, pre-charging equipment 130, excitation equipment 140 and temperature monitoring equipment 150, other modules or systems with independent communication can be used as external devices 100 according to actual conditions, and there is no limitation here.

[0063] As a specific embodiment of the present application, the integrated display and control system first performs a pre-construction process according to the connected external device, then implements optional processing based on the communication protocol adopted by the connected external device, and further displays the device information of the corresponding external device through the display screen. Figure 4 As shown, the construction and application of the integrated display and control system may include the following steps:

[0064] S301, determining the device communication interface of each external device.

[0065] S302, determining the communication protocol used by each external device.

[0066] S303, pre-establishing a parent device, a child device, an intermediate variable and a display interface corresponding to each external device in the integrated display and control system according to the device communication interface and the communication protocol of each external device.

[0067] S304, associate the sub-device with the intermediate variable, and associate the intermediate variable with the interface component. Thus, the pre-construction of the integrated display and control system is completed.

[0068] S305, during the application process, the integrated display and control system controls the corresponding sub-device to be in an activated state according to the communication protocol adopted by the connected external device.

[0069] S306: Receive device information of the external device through the corresponding sub-device, and pre-process the device information.

[0070] S307, assigning the preprocessed device information to the intermediate variable to control the display screen to display the display interface of the external device.

[0071] Furthermore, the system activates the corresponding sub-device based on the communication protocol adopted by the external device, controls other sub-devices to be in a deactivated state, thereby avoiding other sub-devices from occupying the communication thread, reasonably allocating communication resources, and receiving information from the external device based on the sub-device in the activated state. By associating the sub-device with the intermediate variable and building different display interfaces associated with the intermediate variable, multi-device integrated display control is realized. In addition, based on the assigned intermediate variable, the display screen can display the device information of the external device, and does not display the unselected device interface, making the display interface of the display screen more intuitive and concise, and can realize flexible application scenario adaptation.

[0072] In summary, according to the integrated display and control system of the embodiment of the present invention, multiple communication interfaces are connected to multiple external devices, the controller is connected to the display screen and multiple communication interfaces respectively, the controller is pre-set with multiple sub-devices of each external device, different sub-devices correspond to different communication protocols, multiple sub-devices of each external device correspond to the same intermediate variables, different external devices correspond to different intermediate variables, the controller is used to control the corresponding sub-device to be in an activated state based on the communication protocol of the external device, so as to receive the device information of the external device through the corresponding sub-device, and control the display screen to display the device information based on the intermediate variables corresponding to the external device. Thus, the system activates the corresponding sub-device based on the communication protocol of the external device, and keeps other sub-devices in an inactive state, so that other sub-devices do not occupy the communication thread, reasonably allocates communication resources, and then receives the device information of the external device through the sub-device in the activated state, and displays it through the display screen, which can realize flexible application scenario adaptation, improve work efficiency, and multi-protocol integrated display and control reduces program version development and maintenance. In addition, compared with the system decentralized display and control method, the system greatly reduces the hardware cost.

[0073] Corresponding to the above embodiment, the present invention also proposes a frequency conversion system.

[0074] With the development of the times, the application scenarios of frequency converters are becoming more and more diverse, more and more complex, and more and more powerful. The addition of auxiliary systems has significantly improved the performance of frequency converters and applied them in a wider range of scenarios. However, each auxiliary system has its own independent display and control system, which makes operation inconvenient and increases hardware costs.

[0075] At the same time, with the increase in customized demand for frequency conversion systems, communication protocols have also changed accordingly. Programs need to be developed according to corresponding protocols, making program maintenance and upgrades difficult, and after-sales program matching chaotic and difficult to control.

[0076] like Figure 5 As shown, the frequency conversion system 200 of the embodiment of the present invention includes the above-mentioned integrated display and control system 210.

[0077] The frequency conversion system according to the embodiment of the present invention can realize the integrated display of multiple devices based on the above-mentioned integrated display and control system, realize flexible application scenario adaptation, improve work efficiency, and the multi-protocol integrated display and control reduces program version development and maintenance, while reducing application costs.

[0078] Corresponding to the above embodiment, the present invention further proposes a control method of the integrated display and control system.

[0079] The integrated display and control system of the embodiment of the present invention includes a display screen and a plurality of communication interfaces for connecting to a plurality of external devices.

[0080] like Figure 6 As shown, the control method of the integrated display and control system of the embodiment of the present invention includes:

[0081] S1, presetting multiple sub-devices of each external device, wherein different sub-devices correspond to different communication protocols, multiple sub-devices of each external device correspond to the same intermediate variable, and different external devices correspond to different intermediate variables;

[0082] S2, based on the communication protocol of the external device, the corresponding sub-device is controlled to be in an activated state, so as to receive device information of the external device through the corresponding sub-device, and control the display screen to display the device information based on the intermediate variable corresponding to the external device.

[0083] According to the control method of the integrated display and control system of the embodiment of the present invention, the integrated display and control system includes a display screen and multiple communication interfaces for connecting to multiple external devices. First, multiple sub-devices of each external device are preset, wherein different sub-devices correspond to different communication protocols, multiple sub-devices of each external device correspond to the same intermediate variables, and different external devices correspond to different intermediate variables. Then, based on the communication protocol of the external device, the corresponding sub-device is controlled to be in an activated state, so as to receive the device information of the external device through the corresponding sub-device, and the display screen is controlled to display the device information based on the intermediate variables corresponding to the external device. Thus, the method activates the corresponding sub-device based on the communication protocol of the external device, and keeps other sub-devices in an inactive state, so that other sub-devices do not occupy the communication thread, reasonably allocates communication resources, and then receives the device information of the external device through the sub-device in the activated state, and displays it through the display screen, which can realize flexible application scenario adaptation and improve work efficiency.

[0084] It should be noted that the logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing logical functions, and can be specifically implemented in any computer-readable medium for use by an instruction execution system, device or apparatus (such as a computer-based system, a system including a processor, or other system that can fetch instructions from an instruction execution system, device or apparatus and execute instructions), or in combination with these instruction execution systems, devices or apparatuses. For the purposes of this specification, "computer-readable medium" can be any device that can contain, store, communicate, propagate or transmit a program for use by an instruction execution system, device or apparatus, or in combination with these instruction execution systems, devices or apparatuses. More specific examples of computer-readable media (a non-exhaustive list) include the following: an electrical connection portion with one or more wirings (electronic device), a portable computer disk box (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable and programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disk read-only memory (CDROM). In addition, the computer-readable medium may even be paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium and then editing, interpreting or processing in other suitable ways if necessary, and then stored in a computer memory.

[0085] It should be understood that the various parts of the present invention can be implemented by hardware, software, firmware or a combination thereof. In the above-mentioned embodiments, a plurality of steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0086] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0087] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0088] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0089] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. An integrated display and control system, characterized in that: The system comprises: Display screen; Multiple communication interfaces for connecting to multiple external devices; A controller, wherein the controller is respectively connected to the display screen and the plurality of communication interfaces, the controller is pre-installed with a plurality of sub-devices of each of the external devices, different sub-devices correspond to different communication protocols, the plurality of sub-devices of each of the external devices correspond to the same intermediate variable, and different external devices correspond to different intermediate variables, the controller is used to control the corresponding sub-device to be in an activated state based on the communication protocol of the external device, so as to receive the device information of the external device through the corresponding sub-device, and control the display screen to display the device information based on the intermediate variable corresponding to the external device.

2. The system according to claim 1, characterized in that The controller is also used for: receiving a user's communication protocol selection instruction through the display screen, and determining the communication protocol of the external device based on the communication protocol selection instruction; or, The plurality of sub-devices controlling the external device communicate with the external device through their corresponding communication protocols respectively, and the communication protocol of the external device is determined based on the communication result.

3. The system according to claim 1, characterized in that The controller is also pre-installed with a parent device of each of the external devices. The controller is also used to control the parent device of the external device to be in an activated state when the external device is connected to the corresponding communication interface, so as to configure the corresponding communication interface through the parent device, and after the interface configuration is completed, control the corresponding child device to be in an activated state based on the communication protocol of the external device.

4. The system according to claim 3, characterized in that The controller is also used for: Receiving a device connection instruction from a user through the display screen, and determining that the external device is connected to a corresponding communication interface based on the device connection instruction; or A connection status signal of the communication interface is acquired, and based on the connection status signal, it is determined that the external device is connected to the corresponding communication interface.

5. The system according to claim 1, characterized in that The controller is also pre-installed with a display interface of each of the external devices, the display interface includes at least one display control, the intermediate variable corresponds to the display control, and the controller is also used to assign the device information to the intermediate variable through the corresponding sub-device, and control the display screen to display at least one of the display controls to display the display interface of the external device, wherein the variable value of the intermediate variable is displayed in the display control.

6. The system according to claim 5, characterized in that The controller is also used to pre-process the device information through the corresponding sub-device, and assign the pre-processed device information to the intermediate variable.

7. The system according to claim 1, characterized in that The controller is also pre-installed with a sub-device template of each of the external devices. The controller is also used to respond to a new protocol instruction and construct a corresponding sub-device based on the communication protocol in the new protocol instruction and the sub-device template.

8. The system according to claim 1, characterized in that The integrated display and control system is applied to a frequency conversion system, and the external equipment includes one or more of a frequency converter, a water cooling device, a pre-charging device, an excitation device, and a temperature monitoring device.

9. A frequency conversion system, characterized in that: Comprising the integrated display and control system according to any one of claims 1-8.

10. A control method for an integrated display and control system, characterized in that: The integrated display and control system includes a display screen and multiple communication interfaces for connecting to multiple external devices. The method includes: Presetting multiple sub-devices of each of the external devices; wherein different sub-devices correspond to different communication protocols, multiple sub-devices of each of the external devices correspond to the same intermediate variable, and different external devices correspond to different intermediate variables; Based on the communication protocol of the external device, the corresponding sub-device is controlled to be in an activated state, so as to receive the device information of the external device through the corresponding sub-device, and based on the intermediate variable corresponding to the external device, the display screen is controlled to display the device information.

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