Multifunctional repeater and multi-split system

Abstract

The utility model relates to the technical field of communication, and discloses a multifunctional repeater and a multi-split system, and the multifunctional repeater comprises a micro-control unit, a plurality of first communication circuits with different communication types, and second communication circuits corresponding to the communication types of the first communication circuits. The micro-control unit is connected with the sending equipment through any first communication circuit and is used for receiving communication data transmitted by the sending equipment; and the micro-control unit is connected with the receiving equipment through a second communication circuit corresponding to the communication type of any first communication circuit, and is used for forwarding the communication data to the receiving equipment. According to the utility model, the micro-control unit is connected with the transmitting equipment through the first communication circuit of any communication type and is connected with the receiving equipment through the second communication circuit corresponding to the first communication circuit, so that data forwarding of different communication types can be realized through one repeater, the complexity of repeater type selection is reduced, and the communication efficiency is improved. And the maintenance difficulty of the system is reduced.

Description

Technical Field

[0001] The utility model relates to the field of communication technologies, in particular to a multi-functional repeater and a multi-connected unit system. Background Art

[0002] Multi-connected unit system air conditioners are now widely used in commercial places such as shopping malls, gymnasiums, office buildings, etc. Since there are many types and models of multi-connected unit system air conditioners, their communication methods are diverse. Common multi-connected unit communications are RS485, CAN, HBUS bus, etc. Since different communication interfaces use different data transmission protocols, there are data transmission obstacles when transmitting data between unit devices and networks with different protocols.

[0003] Due to technical limitations, multi-connected unit serial communication usually can only perform short-distance transmission and cannot meet the communication requirements of large campus unit networks. For serial cables, the higher the communication rate, the shorter the transmission distance. When long-distance transmission is required, the baud rate needs to be reduced and a repeater needs to be added.

[0004] Common repeaters are designed for the same type of serial network. Different types of communication networks need to match different types of network repeaters. However, when there are many network types, there are many types of repeater selection, many network interfaces, which easily leads to greater difficulty in system network management and maintenance, and poor versatility in equipment selection and upgrade. Content of the Utility Model

[0005] In view of this, the utility model provides a multi-functional repeater and a multi-connected unit system to solve the problem that when the communication network type is complex, the selection of common relays is complicated, resulting in great difficulty in system maintenance.

[0006] In a first aspect, the utility model provides a multi-functional repeater, which includes a micro-control unit, a plurality of first communication circuits with different communication types, and second communication circuits corresponding to the communication types of each first communication circuit;

[0007] The micro-control unit is connected to a sending device through any one of the first communication circuits, and is used for receiving communication data transmitted by the sending device;

[0008] The micro-control unit is connected to a receiving device through a second communication circuit corresponding to the communication type of any one of the first communication circuits, and is used for forwarding the communication data to the receiving device.

[0009] Beneficial effects: The microcontroller unit is connected to the sending device through the first communication circuit of any one communication type, and is connected to the receiving device through the second communication circuit corresponding to the first communication circuit, so as to obtain the communication data transmitted by the sending device through multiple communication methods and forward it to the receiving device. Data forwarding of different communication types can be achieved through one repeater, thereby reducing the complexity of repeater selection in large multi-connected air conditioner systems and reducing the maintenance difficulty of the system.

[0010] In an optional embodiment, the multifunctional repeater further includes a first switching module and a second switching module;

[0011] The first switching module is respectively connected to the microcontroller unit, the first communication circuit and the sending device, and is used to respond to the switching instruction of the microcontroller unit to switch the communication type of the first communication circuit connected between the microcontroller unit and the sending device;

[0012] The second switching module is respectively connected to the microcontroller unit, the second communication circuit and the receiving device, and is used to respond to the switching instruction of the microcontroller unit to switch the communication type of the second communication circuit connected between the microcontroller unit and the receiving device.

[0013] Beneficial effects: The first switching module and the second switching module share the control pins of the microcontroller unit and adopt a synchronous switching method to realize the relay forwarding of the same type of communication data. By using the first switching module and the second switching module to respond to the switching instruction of the microcontroller unit, the switching of the communication type is realized, which is convenient for the microcontroller unit to obtain and forward the communication data of the corresponding communication type.

[0014] In an optional embodiment, the first switching module includes a first switch control circuit and a second switch control circuit, and the second switching module includes a third switch control circuit and a fourth switch control circuit;

[0015] The control ends of the first switch control circuit, the second switch control circuit, the third switch control circuit and the fourth switch control circuit are respectively connected to the microcontroller unit;

[0016] The switching end of the first switch control circuit is connected to one end of any first communication circuit, the other end of any first communication circuit is connected to the switching end of the second switch control circuit, and the communication end of the second switch control circuit is connected to the sending device;

[0017] The switching end of the third switch control circuit is connected to one end of any second communication circuit, the other end of any second communication circuit is connected to the switching end of the fourth switch control circuit, and the communication end of the fourth switch control circuit is connected to the receiving device.

[0018] Beneficial effects: The microcontroller unit realizes the switching of the communication type of the first communication circuit between the microcontroller unit and the sending device by controlling the switching of the switches in the first switch control circuit and the second switch control circuit. At the same time, the third switch control circuit and the fourth switch control circuit adopt a synchronous switching method to realize the switching of the communication type of the second communication circuit between the microcontroller unit and the receiving device, and it is convenient to realize the relay forwarding of the same type of communication data.

[0019] In an alternative embodiment, the multifunctional repeater further includes a first communication port and a second communication port;

[0020] One end of the first communication port is connected to an external sending device, and the other end of the first communication port is connected to the communication end of the second switch control circuit;

[0021] One end of the second communication port is connected to the communication end of the fourth switch control circuit, and the other end of the second communication port is connected to an external receiving device.

[0022] Beneficial effects: The first communication port and the second communication port are provided to communicate with the sending device and the receiving device respectively, which is convenient for receiving, storing, and forwarding communication data.

[0023] In an alternative embodiment, the microcontroller unit is further configured to obtain the communication data stored in the first communication port and send the communication data to the second communication port.

[0024] Beneficial effects: By obtaining the communication data stored in the first communication port and sending the communication data to the second communication port, the relay forwarding of the communication data is realized.

[0025] In an alternative embodiment, the communication ends of the first switch control circuit and the third switch control circuit are respectively connected to the microcontroller unit through a bidirectional communication serial port.

[0026] Beneficial effects: The microcontroller unit communicates with the corresponding switch control circuit through the bidirectional communication serial port, which is convenient for receiving and sending communication data and realizes the two-way transmission of data.

[0027] In an alternative embodiment, the microcontroller unit is further configured to obtain the communication data transmitted by the receiving device and forward the communication data to the sending device.

[0028] Beneficial effects: It can not only obtain the communication data transmitted by the sending device, but also obtain the communication data transmitted by the receiving device through the bidirectional serial port communication and forward it to the sending device, realizing the two-way relay forwarding of data.

[0029] In an alternative embodiment, the multiple first communication circuits include at least two of a CAN communication circuit, an RS485 communication circuit, and an HBUS communication circuit.

[0030] Advantageous effects: By providing communication circuits of multiple communication types, such as a CAN communication circuit, an RS485 communication circuit, and an HBUS communication circuit, the repeater can be compatible with multiple types of serial port networks, realizing data transparent transmission and forwarding for different networks, and solving the problem of incompatibility of data for different types of networks in traditional methods.

[0031] In a second aspect, the present utility model provides a multi-connected air conditioner system, including: a multi-connected air conditioner device and the multifunctional repeater according to the first aspect or any corresponding embodiment thereof.

[0032] Advantageous effects: By using the multifunctional repeater to connect between multi-connected air conditioner devices, a single repeater can receive communication data of different communication types corresponding to different devices and forward it to the corresponding devices, realizing data intermediate forwarding, reducing the complexity of repeater selection and the difficulty of system maintenance.

[0033] In an alternative embodiment, the multi-connected air conditioner device is an air conditioner.

[0034] The advantageous effects of the present utility model are as follows:

[0035] The micro control unit is connected to the sending device through the first communication circuit of any one communication type, and is connected to the receiving device through the second communication circuit corresponding to the first communication circuit, so as to obtain the communication data transmitted by the sending device through multiple communication methods and forward it to the receiving device. Data forwarding of different communication types can be achieved through one repeater, thereby reducing the complexity of repeater selection in a large multi-connected air conditioner system and reducing the difficulty of system maintenance.

[0036] The present utility model can automatically adapt and convert RS485, CAN, and HBUS communication networks under a single communication port, meet multi-type serial port compatible communication, realize interconnection and interoperability of different types of interface communication, and has characteristics such as simple interface circuit design and strong communication performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0038] Figure 1It is a schematic structural diagram of a multifunctional repeater according to an embodiment of the present invention;

[0039] Figure 2 It is a schematic structural diagram of another multifunctional repeater according to an embodiment of the present invention;

[0040] Figure 3 It is a schematic structural diagram of yet another multifunctional repeater according to an embodiment of the present invention;

[0041] Figure 4 It is a schematic structural diagram of still another multifunctional repeater according to an embodiment of the present invention;

[0042] Figure 5 It is a working flowchart of a micro control unit according to an embodiment of the present invention;

[0043] Figure 6 It is a schematic structural diagram of a multi-connected air conditioner system according to an embodiment of the present invention.

[0044] Description of reference numerals:

[0045] 100, multifunctional repeater;

[0046] 101, micro control unit; 102, first communication circuit; 103, second communication circuit; 104, first switching module; 1041, first switch control circuit; 1042, second switch control circuit; 105, second switching module; 1051, third switch control circuit; 1052, fourth switch control circuit; 106, first communication port; 107, second communication port. Detailed implementation manners

[0047] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in 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. Apparently, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0048] In the description of the present invention, it should be noted that the orientation or positional relationships indicated by the terms "inside", "upper", "outside", "lower", "underneath", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and should not be construed as indicating or implying relative importance.

[0049] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "communication" should be understood in a broad sense. For example, it can be fixedly connected, detachably connected, or integrally connected; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediate medium, and it can also be the connection inside two components. It can be wirelessly connected or wired connected. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0050] Multi-connected air-conditioning systems are widely used in commercial places such as shopping malls, gymnasiums, and office buildings. Due to the large number of models and types, the communication methods of multi-connected air-conditioning systems are diverse. Commonly used multi-connected communication methods include RS485, CAN, HBUS buses, etc. Since different communication interfaces use different data transmission protocols, there are data transmission obstacles when transmitting data between unit devices and networks with different protocols.

[0051] Due to technical limitations, multi-connected serial communication usually can only perform short-distance transmission and cannot meet the communication requirements of large campus unit networks. For serial cables, the higher the communication rate, the shorter the transmission distance. When long-distance transmission is required, the baud rate needs to be reduced and repeaters need to be added.

[0052] Commonly used repeaters are designed for the same type of serial network. Different types of communication networks need to match different types of network repeaters. Therefore, when there are many network types, there are many types of repeater selection, many network interfaces, and it is difficult to manage and maintain the unit network, and the universality of equipment selection and upgrade is poor.

[0053] Therefore, in combination with the multi-connected communication network, the embodiment of the present utility model designs an MCU software integrated multi-functional repeater. This repeater can automatically adapt and convert RS485, CAN, and HBUS communication networks under a single communication interface, meet the compatible communication of multiple types of serial ports, realize the interconnection and intercommunication of different types of interface communications, and has characteristics such as simple interface circuit design and strong communication performance.

[0054] According to an embodiment of the present utility model, on the one hand, the present utility model provides a multi-functional repeater 100, as Figure 1 shown. The multi-functional repeater 100 includes a microcontroller unit (MCU) 101, a plurality of first communication circuits 102 with different communication types, and second communication circuits 103 corresponding to the communication types of each first communication circuit 102.

[0055] Specifically, the microcontroller unit 101 is connected to the sending device through any one of the first communication circuits 102, and is configured to receive communication data transmitted by the sending device. The microcontroller unit 101 is connected to the receiving device through the second communication circuit 103 corresponding to the communication type of any one of the first communication circuits 102, and is configured to forward the communication data to the receiving device. It should be noted that Figure 1 The solid lines in it represent the first / second communication circuits currently connected by the microcontroller unit 101, the sending device, and the receiving device, and the dashed lines represent the current non-connections.

[0056] In this embodiment, the microcontroller unit 101 is connected to the sending device through the first communication circuit 102 of any one communication type, and is connected to the receiving device through the second communication circuit 103 corresponding to the first communication circuit 102, so as to obtain the communication data transmitted by the sending device through multiple communication methods and forward it to the receiving device. Different communication types of data forwarding can be realized through one repeater, thereby reducing the complexity of repeater selection in a large multi-connected air conditioner system and reducing the maintenance difficulty of the system.

[0057] It should be noted that the embodiments of the present application do not limit the specific structures of the microcontroller unit 101, the first communication circuit 102, and the second communication circuit 103, because the main innovation point of the present application lies in the overall layout of the microcontroller unit 101, the first communication circuit 102, and the second communication circuit 103, so as to achieve the effects of multi-data communication types of the multi-functional repeater 100 and reducing the complexity of repeater selection in a large multi-connected air conditioner system. As for the specific structures of the microcontroller unit 101, the first communication circuit 102, and the second communication circuit 103, they can be set according to actual usage situations. For example, the microcontroller unit 101 can also be a control chip such as a single-chip microcomputer, and the first communication circuit 102 and the corresponding second communication circuit 103 can be set as hardware circuits or chips related to communication. These adjustments all fall within the protection scope of the embodiments of the present application.

[0058] In some alternative embodiments, the multiple first communication circuits 102 include at least two of a CAN communication circuit, an RS485 communication circuit, and an HBUS communication circuit, and at the same time, the communication types and quantities of the second communication circuits 103 correspond to those of the first communication circuits.

[0059] In the embodiments of the present application, communication circuits of multiple communication types are provided, such as a CAN communication circuit, an RS485 communication circuit, and an HBUS communication circuit, so that the repeater can be compatible with multiple types of serial port networks, realize data transparent forwarding of different networks, and solve the problem of incompatibility of different types of network data in traditional methods.

[0060] In some alternative embodiments, such as Figure 2As shown in the figure, the multifunctional repeater 100 further includes a first switching module 104 and a second switching module 105. Among them, the first switching module 104 is respectively connected to the micro control unit 101, the first communication circuit 102, and the sending device, and is used to respond to the switching instruction of the micro control unit 101 to switch the communication type of the first communication circuit 102 connected between the micro control unit 101 and the sending device. Moreover, the second switching module 105 is respectively connected to the micro control unit 101, the second communication circuit 103, and the receiving device, and is used to respond to the switching instruction of the micro control unit 101 to switch the communication type of the second communication circuit 103 connected between the micro control unit 101 and the receiving device.

[0061] Specifically, referring again to Figure 2 , the first switching module 104 and the second switching module 105 share the control pins of the micro control unit 101 and adopt a synchronous switching method to realize the relay forwarding of the same type of communication data.

[0062] In the embodiment of the present application, by using the first switching module 104 and the second switching module 105 to respond to the switching instruction of the micro control unit, the switching of the communication type is realized, which is convenient for the micro control unit 101 to obtain and forward the communication data of the corresponding communication type, so as to realize the relay forwarding of the same type of communication data.

[0063] Furthermore, as Figure 3 shown, the first switching module 104 includes a first switch control circuit 1041 and a second switch control circuit 1042, and the second switching module 105 includes a third switch control circuit 1051 and a fourth switch control circuit 1052. Among them, the control ends of the first switch control circuit 1041, the second switch control circuit 1042, the third switch control circuit 1051, and the fourth switch control circuit 1052 are respectively connected to the micro control unit 101.

[0064] Moreover, the switching end of the first switch control circuit 1041 is connected to one end of any first communication circuit 102, the other end of any first communication circuit 102 is connected to the switching end of the second switch control circuit 1042, and the communication end of the second switch control circuit 1042 is connected to the sending device.

[0065] In addition, the switching end of the third switch control circuit 1051 is connected to one end of any second communication circuit 103, the other end of any second communication circuit 103 is connected to the switching end of the fourth switch control circuit 1052, and the communication end of the fourth switch control circuit 1052 is connected to the receiving device.

[0066] In the embodiment of the present application, the microcontroller unit 101 realizes the switching of the communication type of the first communication circuit 102 between the microcontroller unit 101 and the sending device by controlling the switching of the switches in the first switch control circuit 1041 and the second switch control circuit 1042. At the same time, the third switch control circuit 1051 and the fourth switch control circuit 1052 adopt a synchronous switching method to realize the switching of the communication type of the second communication circuit 103 between the microcontroller unit 101 and the receiving device, which is convenient for realizing the relay forwarding of the same type of communication data.

[0067] It should be noted that the embodiment of the present application does not limit the specific structure of the switch control circuit, because the main innovation point of the present application lies in the overall layout of the switch control circuit to achieve the effect of switching the communication type of the communication circuit. As for the specific structure of the switch control circuit, it can be set according to the actual use situation. For example, it can also be a controller such as a switching tube or a chip, as long as the switching effect can be achieved. These adjustments all fall within the protection scope of the embodiment of the present application.

[0068] In some alternative embodiments, as Figure 4 shown, the multifunctional repeater 100 further includes a first communication port 106 and a second communication port 107. Among them, one end of the first communication port 106 is connected to an external sending device, and the other end of the first communication port 106 is connected to the communication end of the second switch control circuit 1042; one end of the second communication port 107 is connected to the communication end of the fourth switch control circuit 1052, and the other end of the second communication port 107 is connected to an external receiving device.

[0069] Exemplarily, the microcontroller unit controls the first switch control circuit and the second switch control circuit to switch the switches to form a link between the first communication port 106 and the microcontroller unit 101; similarly, the microcontroller unit controls the third switch control circuit and the fourth switch control circuit to switch the switches to form a link between the second communication port 107 and the microcontroller unit 101, thereby realizing the link switching of the RS485, HBUS, and CAN communication circuits and realizing the data sending and receiving of the three communication methods.

[0070] Specifically, the microcontroller unit 101 is further configured to obtain the communication data stored in the first communication port 106 and send the communication data to the second communication port 107, thereby realizing the relay forwarding of the communication data.

[0071] In this embodiment, the first communication port 106 and the second communication port 107 are provided to communicate with the sending device and the receiving device respectively, which is convenient for receiving, storing, and forwarding the communication data.

[0072] In some alternative embodiments, referring again to Figure 4, the communication terminals of the first switch control circuit 1041 and the third switch control circuit 1051 are respectively connected to the micro control unit 101 through a bidirectional communication serial port.

[0073] Specifically, the micro control unit 101 has functions such as UART and CAN communication, and the selected I / O pins can be configured with serial communication methods such as CAN or UART through software.

[0074] Exemplarily, referring again to Figure 4 , the micro control unit 101 (i.e., MCU) uses 4 pins, and two independent communication serial ports are set through software configuration, namely communication serial port 1 and communication serial port 2. The two independent serial ports can realize free switching of RS485, HBUS, and CAN communication. Communication serial port 1 and communication serial port 2 can realize bidirectional data relay transparent transmission and forwarding. After any communication serial port receives communication data, it will synchronously forward it to the other serial port to realize bidirectional transmission of data.

[0075] In the embodiment of the present application, the micro control unit communicates with the corresponding switch control circuit through a bidirectional communication serial port, which is convenient for receiving and sending communication data and realizes bidirectional transmission of data.

[0076] Specifically, the micro control unit 101 is further configured to obtain the communication data transmitted by the receiving device and forward the communication data to the sending device.

[0077] In the embodiment of the present application, not only can the communication data transmitted by the sending device be obtained, but also the communication data transmitted by the receiving device can be obtained by using bidirectional serial port communication and forwarded to the sending device to realize bidirectional relay forwarding of data.

[0078] As Figure 5 shown, the embodiment of the present utility model provides a working flow chart of a micro control unit, and its specific control timing is as follows:

[0079] First, the multi-functional repeater is powered on. Referring again to Figure 4 , the micro control unit configures the communication types of the two independent communication ports, namely the first communication port 106 and the second communication port 107, as CAN1 and CAN2 respectively. At the same time, the first, second, third, and fourth switch control circuits are synchronously switched to CAN1 and CAN2 serial communication circuits. At this time, bidirectional real-time data transparent transmission and forwarding can be realized between the CAN-type first communication port 106 and the CAN-type second communication port 107.

[0080] After that, when it is detected that the first communication port 106 and the second communication port 107 have not received normal CAN communication data for a long time, at this time, the micro-control unit switches the communication type, and the two communication ports are configured as UART1 and UART2. At the same time, the first, second, third, and fourth switch control circuits are synchronously switched to the RS485_1 and RS485_2 serial communication circuits, so as to realize the two-way real-time data transparent transmission and forwarding between the first communication port 106 of the RS485 type and the second communication port 107 of the RS485 type.

[0081] Then, when it is detected that the first communication port 106 and the second communication port 107 have not received normal RS485 communication data for a long time, at this time, the micro-control unit synchronously switches the first, second, third, and fourth switch control circuits to the HUBS1 and HUBS2 serial communication circuits, so as to realize the two-way real-time data transparent transmission and forwarding between the first communication port 106 of the HUBS type and the second communication port 107 of the HUBS type.

[0082] Finally, by cycling in the above manner, it is possible to realize the free matching and switching of three types of serial port communications for the same communication port, and complete the data transparent transmission and forwarding.

[0083] The repeater of the present utility model adopts a software programming design based on a micro-control unit. Through software configuration, combined with the peripheral circuit and a single communication interface, it realizes multiple types of network communications such as RS485, CAN, and HBUS, and the data forwarding adopts a transparent transmission method. At the same time, the communication port can identify the communication type of the network, adopts a polling self-scanning method and a switch control circuit, and switches and matches the corresponding type of serial port circuit to realize the multi-type network data transmission of a single communication interface.

[0084] The present utility model adopts a single MCU software integrated design to realize the compatible transparent transmission and forwarding of multi-type network data, and the interface circuit design is simple. At the same time, it adopts a single communication port, which can automatically adapt to different types of serial port networks, and the installation and connection are simple and efficient, with strong versatility and scalability.

[0085] According to an embodiment of the present utility model, a multi-connected air conditioner system is provided, as Figure 6 shown. The multi-connected air conditioner system 600 includes a multi-connected air conditioner device 601 and a multi-functional repeater 100. It should be noted that the number of multi-connected air conditioner devices 601 can be multiple, Figure 6 only as an example.

[0086] Specifically, the multi-functional repeater 100 can be connected between multiple multi-connected devices 601. There can be multiple types of communication for the multi-connected devices 601. The multi-functional repeater 100 can identify the network type of the multi-connected device 601 connected thereto through the communication port, and switch the communication circuit matching the network type to receive the communication data of the multi-connected device 601.

[0087] In some alternative embodiments, the communication port of the multi-functional repeater 100 can automatically receive and store different types of communication data. Then, the multi-functional repeater 100 sequentially switches different types of communication circuits in a timing manner to obtain the communication data stored in the communication port and forward it to the corresponding device.

[0088] Exemplarily, the multi-connected device 601 can be an air conditioner, but the embodiments of the present utility model are not limited thereto.

[0089] In the embodiments of the present application, by using a multi-functional repeater connected between multi-connected devices, a single repeater can receive the communication data of different communication types corresponding to different devices and forward it to the corresponding device, realizing data intermediate forwarding, and reducing the complexity of repeater selection and the difficulty of system maintenance.

[0090] The present utility model can automatically adapt and convert RS485, CAN, and HBUS communication networks under a single communication port, meet multi-type serial port compatible communication, realize the interconnection and interoperability of different types of interface communications, and has characteristics such as a simple interface circuit design and strong communication performance.

[0091] Although the embodiments of the present utility model have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present utility model, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A multifunctional repeater, characterized in that, It includes a microcontroller unit, multiple first communication circuits with different communication types, and second communication circuits corresponding to the communication types of each first communication circuit; The microcontroller unit is connected to a sending device through any one of the first communication circuits, and is configured to receive communication data transmitted by the sending device; The microcontroller unit is connected to a receiving device through a second communication circuit corresponding to the communication type of the any one first communication circuit, and is configured to forward the communication data to the receiving device.

2. The multifunctional repeater according to claim 1, characterized in that, The multifunctional repeater further includes a first switching module and a second switching module; The first switching module is respectively connected to the microcontroller unit, the first communication circuit, and the sending device, and is configured to respond to a switching instruction of the microcontroller unit to switch the communication type of the first communication circuit connected between the microcontroller unit and the sending device; The second switching module is respectively connected to the microcontroller unit, the second communication circuit, and the receiving device, and is configured to respond to a switching instruction of the microcontroller unit to switch the communication type of the second communication circuit connected between the microcontroller unit and the receiving device.

3. The multifunctional repeater according to claim 2, characterized in that, The first switching module includes a first switch control circuit and a second switch control circuit, and the second switching module includes a third switch control circuit and a fourth switch control circuit; The control ends of the first switch control circuit, the second switch control circuit, the third switch control circuit, and the fourth switch control circuit are respectively connected to the microcontroller unit; The switching end of the first switch control circuit is connected to one end of any one of the first communication circuits, the other end of the any one first communication circuit is connected to the switching end of the second switch control circuit, and the communication end of the second switch control circuit is connected to the sending device; The switching end of the third switch control circuit is connected to one end of any one of the second communication circuits, the other end of the any one second communication circuit is connected to the switching end of the fourth switch control circuit, and the communication end of the fourth switch control circuit is connected to the receiving device.

4. The multifunctional repeater according to claim 3, characterized in that, The multifunctional repeater further includes a first communication port and a second communication port; One end of the first communication port is connected to an external sending device, and the other end of the first communication port is connected to the communication end of the second switch control circuit; One end of the second communication port is connected to the communication end of the fourth switch control circuit, and the other end of the second communication port is connected to an external receiving device.

5. The multifunctional repeater according to claim 4, characterized in that, The microcontroller unit is further configured to obtain communication data stored in the first communication port and send the communication data to the second communication port.

6. The multifunctional repeater according to any one of claims 3-5, characterized in that, The communication ends of the first switch control circuit and the third switch control circuit are respectively connected to the microcontroller unit through bidirectional communication serial ports.

7. The multifunctional repeater according to claim 6, characterized in that, The microcontroller unit is further configured to obtain communication data transmitted by the receiving device and forward the communication data to the sending device.

8. The multifunctional repeater according to any one of claims 1-5, characterized in that, The multiple first communication circuits include at least two of a CAN communication circuit, an RS485 communication circuit, and an HBUS communication circuit.

9. A multi-connected air-conditioning system, characterized in that, It includes: A multi-connected unit device and the multifunctional repeater according to any one of claims 1 to 8.

10. The multi-connected air conditioner system according to claim 9, wherein The multi-connected unit device is an air conditioner.

Images