Wire controller

Abstract

The utility model discloses a wire controller, comprising an HBS communication module suitable for being connected with a target device through an HBS communication bus; the 24V communication module is suitable for being connected with target equipment through a 24V communication bus; the main controller is respectively connected with the HBS communication module and the 24V communication module, and is configured to communicate with target equipment through the HBS communication module or the 24V communication module; and the power supply module is connected with the HBS communication bus, the 24V communication bus, the HBS communication module, the 24V communication module and the main controller, and is configured to generate power supply voltage based on the communication voltage of the HBS communication bus or the 24V alternating current voltage of the 24V communication bus so as to supply power to the HBS communication module, the 24V communication module and the main controller. The wire controller can be compatible with an HBS communication mode and a 24V communication mode, and has wide applicability.

Description

Technical Field

[0001] The utility model relates to the technical field of equipment control, in particular to a wire controller. Background Art

[0002] The wire controller in the related art can only adapt to the HBS communication mode and is not compatible with the 24V communication mode, resulting in poor applicability of the wire controller. Utility Model Content

[0003] The utility model aims to solve one of the technical problems in the related art at least to a certain extent. To this end, the purpose of the utility model is to provide a wire controller that is compatible with the HBS communication mode and the 24V communication mode and has wide applicability.

[0004] To achieve the above-mentioned purpose, an embodiment of the utility model proposes a wire controller for controlling a target device, the wire controller comprising: an HBS communication module, suitable for being connected to the target device through an HBS communication bus; a 24V communication module, suitable for being connected to the target device through a 24V communication bus; a main controller, the main controller being connected to the HBS communication module and the 24V communication module respectively, and being configured to communicate with the target device through the HBS communication module or the 24V communication module; a power supply module, the power supply module being connected to the HBS communication bus, the 24V communication bus, the HBS communication module, the 24V communication module and the main controller respectively, and being configured to generate a power supply voltage based on the communication voltage of the HBS communication bus or the 24V AC voltage of the 24V communication bus, and to power the HBS communication module, the 24V communication module and the main controller.

[0005] According to the wire controller of the embodiment of the utility model, power is taken from the HBS communication bus or the 24V communication bus through the power module to supply power to the HBS communication module, the 24V communication module and the main controller. The main controller can communicate with the target device through the HBS communication module or the 24V communication module, so that the wire controller can be compatible with the HBS communication mode and the 24V communication mode, and has wide applicability.

[0006] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 It is a structural schematic diagram of a wire controller according to some embodiments of the utility model;

[0008] Figure 2 It is a schematic diagram of the structure of a power module according to some embodiments of the utility model;

[0009] Figure 3It is a schematic diagram of the structure of the power supply module according to other embodiments of the utility model;

[0010] Figure 4 is a structural schematic diagram of a first rectifier circuit according to some embodiments of the utility model;

[0011] Figure 5 is a structural schematic diagram of a second rectifier circuit according to some embodiments of the utility model;

[0012] Figure 6 is a schematic diagram of the structure of a voltage conversion circuit according to some embodiments of the utility model;

[0013] Figure 7 It is a structural schematic diagram of an HBS communication module according to some embodiments of the utility model;

[0014] Figure 8 Schematic diagram of the structure of the HBS communication module according to other embodiments of the present utility model;

[0015] Fig. 9 It is a structural schematic diagram of a 24V communication module according to some embodiments of the utility model;

[0016] Fig.10 It is a structural schematic diagram of a signal sending circuit and a first detection circuit according to some embodiments of the utility model;

[0017] Fig.11 It is a structural schematic diagram of a signal sending circuit and a first detection circuit according to other embodiments of the utility model;

[0018] Fig.12 It is a structural schematic diagram of a signal expansion circuit according to some embodiments of the utility model;

[0019] Fig.13 It is a structural schematic diagram of a power supply detection circuit according to some embodiments of the utility model;

[0020] Fig.14 It is a schematic diagram of the structure of a control chip according to some embodiments of the utility model;

[0021] Fig.15 Schematic diagram of the structure of the connecting terminal according to some embodiments of the present invention. DETAILED DESCRIPTION

[0022] The embodiments of the present invention are described in detail below, and examples of the embodiments 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.

[0023] The wire controller provided by the embodiment of the utility model is described below with reference to the accompanying drawings.

[0024] The wire controller of the embodiment of the utility model is used to control a target device, which includes but is not limited to an air conditioner, a heating system, etc. For ease of description, the air conditioner is taken as an example for explanation below.

[0025] It should be noted that HBS (Home Bus System) is a concept jointly proposed by Japanese companies and formulated by the HBS Standards Committee of the Japan Electronics Industry Federation / Wireless Engineering Electronics Association. 24V control is a common non-communication control method for thermostat products in North America. The thermostat sends a switch signal to the air conditioner using a defined signal line, thereby sending cooling and heating commands to the indoor unit, and controlling the start and stop of the switch signal to control the operation of the air conditioner and achieve the desired temperature.

[0026] Figure 1 Schematic diagram of the structure of a wire controller according to some embodiments of the present invention.

[0027] Reference Figure 1 , the wire controller 100 may include: an HBS communication module 110, a 24V communication module 120, a main controller 130 and a power module 140. Among them, the HBS communication module 110 is suitable for connecting to the target device through the HBS communication bus 150. The 24V communication module 120 is suitable for connecting to the target device through the 24V communication bus 160. The main controller 130 is connected to the HBS communication module 110 and the 24V communication module 120 respectively, and is configured to communicate with the target device through the HBS communication module 110 or the 24V communication module 120. The power module 140 is connected to the HBS communication bus 150, the 24V communication bus 160, the HBS communication module 110, the 24V communication module 120 and the main controller 130 respectively, and is configured to generate a power supply voltage based on the communication voltage of the HBS communication bus 150 or the 24V AC voltage of the 24V communication bus 160, and to power the HBS communication module 110, the 24V communication module 120 and the main controller 130.

[0028] Exemplarily, the HBS communication bus 150 may include a first HBS bus and a second HBS bus, through which the wire controller 100 is powered and signals are transmitted. The differential voltage between the first HBS bus and the second HBS bus is the communication voltage. The 24V communication bus 160 may include a 24V power line and at least one signal line, through which the wire controller 100 is powered and signals are transmitted to the wire controller 100 through the 24V power line. The 24V power line is an AC power line for providing a 24V AC voltage. It should be noted that the communication voltage and the 24V AC voltage can be provided by a target device such as an air conditioner, and the 24V AC voltage can also be provided by an independent AC power supply.

[0029] The HBS communication module 110 is connected to the HBS communication bus 150 and the main controller 130 respectively. When the online controller 100 is connected to the target device such as the air conditioner through the HBS communication bus 150, the main controller 130 can communicate with the target device such as the air conditioner through the HBS communication module 110 and the HBS communication bus 150, such as sending a control signal to the air conditioner to perform heating control, cooling control, etc. on the air conditioner. The 24V communication module 120 is connected to the 24V communication bus 160 and the main controller 130 respectively. When the online controller 100 is connected to the target device such as the air conditioner through the 24V communication bus 160, the main controller 130 can communicate with the target device such as the air conditioner through the 24V communication module 120 and the 24V communication bus 160, such as sending a control signal to the air conditioner to perform heating control, cooling control, etc. on the air conditioner.

[0030] The power module 140 is connected to the HBS communication bus 150 and the 24V communication bus 160. When the line controller 100 is connected to a target device such as an air conditioner via the HBS communication bus 150, the power module 140 generates a power supply voltage based on the communication voltage of the HBS communication bus 150, that is, the differential voltage between the first HBS bus and the second HBS bus, and supplies power to the entire line controller 100. When the line controller 100 is connected to a target device such as an air conditioner via the 24V communication bus 160, the power module 140 generates a power supply voltage based on the 24V AC voltage of the 24V communication bus 160, that is, the AC voltage on the 24V power line, and supplies power to the entire line controller 100.

[0031] As an example, when the online controller 100 is connected to a target device such as an air conditioner through the HBS communication bus 150, the power module 140 draws power from the HBS communication bus 150 and generates a power supply voltage to power the HBS communication module 110, the 24V communication module 120 and the main controller 130. After the main controller 130 is powered, it can send a control signal to the air conditioner through the HBS communication module 110 and the HBS communication bus 150. When the online controller 100 is connected to a target device such as an air conditioner through the 24V communication bus 160, the power module 140 draws power from the 24V power line in the 24V communication bus 160 and generates a power supply voltage to power the HBS communication module 110, the 24V communication module 120 and the main controller 130. After the main controller 130 is powered, it can send a control signal to the air conditioner through the 24V communication module 120 and the signal line in the 24V communication bus 160.

[0032] In the above embodiment, power is taken from the HBS communication bus or the 24V communication bus through the power module to supply power to the HBS communication module, the 24V communication module and the main controller, so that the wire controller can be powered and work regardless of whether it is connected to the target device through the HBS communication bus or the 24V communication bus; after the wire controller is powered, the main controller can communicate with the target device through the HBS communication module and the HBS communication bus, or the 24V communication module and the 24V communication bus, so that the wire controller can be compatible with the HBS communication mode and the 24V communication mode, and has wide applicability.

[0033] In some embodiments, reference Figure 2 The power module 140 includes: a first rectifier circuit 141, a second rectifier circuit 142 and a voltage conversion circuit 143. The first rectifier circuit 141 is connected to the HBS communication bus 150, and is configured to rectify the communication voltage to obtain a first DC voltage. The second rectifier circuit 142 is connected to the 24V communication bus 160, and is configured to rectify the 24V AC voltage to obtain a first DC voltage. The voltage conversion circuit 143 is respectively connected to the first rectifier circuit 141 and the second rectifier circuit 142, and is configured to convert the first DC voltage to generate a power supply voltage.

[0034] Exemplarily, when the online controller 100 is connected to a target device such as an air conditioner via the HBS communication bus 150, the first rectifier circuit 141 rectifies the communication voltage of the HBS communication bus 150, i.e., the differential voltage between the first HBS bus and the second HBS bus, to obtain a first DC voltage such as 18V; then, the voltage conversion circuit 143 performs voltage conversion, such as step-down processing, on the first DC voltage such as 18V to obtain a power supply voltage such as 5V, 3.3V, 1V, etc., to power the HBS communication module 110, the 24V communication module 120 and the main controller 130.

[0035] When the online controller 100 is connected to a target device such as an air conditioner through a 24V communication bus 160, the second rectifier circuit 142 rectifies the 24V AC voltage on the 24V power line in the 24V communication bus 160 to obtain a first DC voltage such as 18V; then, the voltage conversion circuit 143 performs voltage conversion, such as step-down processing, on the first DC voltage such as 18V to obtain a power supply voltage such as 5V, 3.3V, 1V, etc., to power the HBS communication module 110, the 24V communication module 120 and the main controller 130.

[0036] In this way, no matter whether the wire controller is connected to the target device via the HBS communication bus or the 24V communication bus, the wire controller can be powered by the first rectifier circuit, the second rectifier circuit and the voltage conversion circuit.

[0037] In some embodiments, reference Figure 3 The first rectifier circuit 141 includes: a first interference suppression circuit 1411 and a first rectifier bridge 1412. The first interference suppression circuit 1411 is connected to the HBS communication bus 150 and is configured to suppress common-mode interference of the communication voltage. The first rectifier bridge 1412 is connected to the first interference suppression circuit 1411 and is configured to rectify the communication voltage after common-mode interference suppression to obtain a first DC voltage.

[0038] That is, the communication voltage of the HBS communication bus 150, ie, the differential voltage between the first HBS bus and the second HBS bus, is first subjected to common-mode interference suppression by the first interference suppression circuit 1411, and then rectified by the first rectifier bridge 1412, thereby obtaining a stable and reliable first DC voltage.

[0039] For example, refer to Figure 4 , the first interference suppression circuit 1411 may include a first common-mode inductor L3, and the first rectifier bridge 1412 may be an uncontrolled rectifier bridge. Among them, the first end of the first common-mode inductor L3 is connected to the first HBS bus HA, the second end of the first common-mode inductor L3 is connected to the second HBS bus HB, the third end of the first common-mode inductor L3 is connected to the first AC input end of the uncontrolled rectifier bridge, and the fourth end of the first common-mode inductor L3 is connected to the second AC input end of the uncontrolled rectifier bridge. Common-mode interference suppression is performed through the first common-mode inductor L3; the first DC output end of the uncontrolled rectifier bridge is connected to the input end DC_IN of the voltage conversion circuit 143, and the second DC output end of the uncontrolled rectifier bridge is grounded DC_GND, which is used to rectify the communication voltage after common-mode interference suppression to obtain a first DC voltage such as 18V. In this way, the first DC voltage can be obtained and the circuit is simple and reliable.

[0040] It should be noted that the first rectifier circuit 141 may also include other circuits, for example, refer to Figure 4 The first rectifier circuit 141 may further include a sixth voltage regulator tube Z6, an anode of the sixth voltage regulator tube Z6 is connected to the first HBS bus HA, and a cathode of the sixth voltage regulator tube Z6 is connected to the second HBS bus HB. The communication voltage is stabilized by the sixth voltage regulator tube Z6 to protect subsequent circuits.

[0041] In some embodiments, continue to refer to Figure 3 The second rectifier circuit 142 includes: a first filter circuit 1421 and a second rectifier bridge 1422. The first filter circuit 1421 is connected to the 24V communication bus 160 and is configured to filter the 24V AC voltage. The second rectifier bridge 1422 is connected to the first filter circuit 1421 and is configured to rectify the filtered 24V AC voltage to obtain a first DC voltage.

[0042] That is to say, the 24V AC voltage of the 24V power line is first filtered by the first filtering circuit 1421 to filter out interference signals, and then rectified by the second rectifier bridge 1422, so as to obtain a stable and reliable first DC voltage.

[0043] For example, refer to Figure 5 , the first filtering circuit 1421 may include a twenty-eighth resistor R28, a twenty-ninth resistor R29 and a ninth capacitor C9, and the second rectifier bridge 1422 may be an uncontrolled rectifier bridge. Among them, one end of the twenty-eighth resistor R28 is respectively connected to the 24V power line RC and the first AC input end of the uncontrolled rectifier bridge, and the other end of the twenty-eighth resistor R28 is respectively connected to the 24V power line C and the second AC input end of the uncontrolled rectifier bridge; one end of the twenty-ninth resistor R29 is connected to the 24V power line C, and the other end of the twenty-ninth resistor R29 is grounded DC_GND; the ninth capacitor C9 is connected in parallel with the twenty-ninth resistor R29; the first DC output end of the uncontrolled rectifier bridge is connected to the input end DC_IN of the voltage conversion circuit 143, and the second DC output end of the uncontrolled rectifier bridge is grounded DC_GND, which is used to rectify the filtered 24V AC voltage to obtain a first DC voltage such as 18V. In this way, the first DC voltage can be obtained and the circuit is simple and reliable.

[0044] It should be noted that the twenty-eighth resistor R28 and the twenty-ninth resistor R29 may be resistors with variable resistance. The second rectifier circuit 142 may also include other circuits, for example, refer to Figure 5The second rectifier circuit 142 may further include a first fuse FU1, which is connected in series between the 24V power line C and the second AC input terminal of the uncontrolled rectifier bridge for overcurrent protection. The second rectifier circuit 142 may further include a tenth capacitor C10, one end of which is connected to the input terminal DC_IN of the voltage conversion circuit 143, and the other end of which is grounded GND, for filtering the first DC voltage to obtain a stable first DC voltage.

[0045] In some embodiments, continue to refer to Figure 3 , the voltage conversion circuit 143 includes: a second interference suppression circuit 1431, a first step-down circuit 1432, a second filter circuit 1433 and a second step-down circuit 1434. The second interference suppression circuit 1431 is connected to the first rectifier circuit 141 and the second rectifier circuit 142 respectively, and is configured to suppress common-mode interference on the first DC voltage. The first step-down circuit 1432 is connected to the second interference suppression circuit 1431, and is configured to step down the first DC voltage after common-mode interference suppression to generate a first power supply voltage. The second filter circuit 1433 is connected to the first step-down circuit 1432, and is configured to filter the first power supply voltage. The second step-down circuit 1434 is connected to the second filter circuit 1433, and is configured to step down the filtered first power supply voltage to generate a second power supply voltage.

[0046] That is, the first DC voltage, such as 18V, can be firstly subjected to common-mode interference suppression by the second interference suppression circuit 1431, and then the first DC voltage, such as 18V, can be subjected to voltage reduction processing by the first voltage reduction circuit 1432 to obtain a first power supply voltage, such as 5V, and the first power supply voltage, such as 5V, can be filtered by the second filtering circuit 1433 to obtain a stable first power supply voltage, such as 5V, and finally the first power supply voltage, such as 5V, can be subjected to voltage reduction processing by the second voltage reduction circuit 1434 to obtain a second power supply voltage, such as 3.3V. The power supply voltage includes a first power supply voltage, such as 5V, and a second power supply voltage, such as 3.3V, which are used to supply power to the HBS communication module 110, the 24V communication module 120, and the main controller 130.

[0047] For example, refer to Figure 6The second interference suppression circuit 1431 may include a second common mode inductor L4, a thirtieth resistor R30, a thirty-first resistor R31, an eleventh capacitor C11, a twelfth capacitor C12 and a thirteenth capacitor C13. Among them, the first end of the second common-mode inductor L4 is connected to the input end DC_IN of the voltage conversion circuit 143, the second end of the second common-mode inductor L4 is grounded DC_GND, the third end of the second common-mode inductor L4 is connected to the input end of the first step-down circuit 1432, and the fourth end of the second common-mode inductor L4 is grounded GND; one end of the 30th resistor R30 is connected to the first end of the second common-mode inductor L4, and the other end of the 30th resistor R30 is connected to the third end of the second common-mode inductor L4; one end of the 31st resistor R31 is connected to the second end of the second common-mode inductor L4, and the other end of the 31st resistor R31 is connected to the fourth end of the second common-mode inductor L4; one end of the 11th capacitor C11 is connected to the third end of the second common-mode inductor L4, and the other end of the 11th capacitor C11 is connected to the fourth end of the second common-mode inductor L4; the 12th capacitor C12 and the 13th capacitor C13 are both connected in parallel with the 11th capacitor C11.

[0048] The first step-down circuit 1432 may include a step-down chip U2 and its peripheral circuit, which may include a thirty-second resistor R32, a thirty-third resistor R33, a thirty-fourth resistor R34, a fourteenth capacitor C14, a thirty-fifth resistor R35, a fifteenth capacitor C15, a thirty-sixth resistor R36, a sixteenth capacitor C16, a thirty-seventh resistor R37, a thirty-eighth resistor R38, a seventeenth capacitor C17 and a fifth inductor L5. Among them, one end of the thirty-second resistor R32 is respectively connected to the input end of the buck chip U2 and the output end of the second interference suppression circuit 1431, and the other end of the thirty-second resistor R32 is connected to the power detection end of the buck chip U2; one end of the thirty-third resistor R33 is respectively connected to the input end of the buck chip U2 and the output end of the second interference suppression circuit 1431, and the other end of the thirty-third resistor R33 is respectively connected to the enable end of the buck chip U2 and one end of the thirty-fourth resistor R34, and the other end of the thirty-fourth resistor R34 is grounded GND; the fourteenth capacitor C14 is connected in parallel with the thirty-fourth resistor R34; one end of the fifth inductor L5 is connected to the output end of the buck chip U2, and the other end of the fifth inductor L5 is connected to the second filter circuit 1433; one end of the fifteenth capacitor C15 is connected to the driving end of the buck chip U2, The other end of the fifteenth capacitor C15 is connected to the output end of the buck chip U2; the cathode of the fifth diode D5 is connected to the output end of the buck chip U2, and the anode of the fifth diode D5 is grounded GND; one end of the thirty-sixth resistor R36 is connected to the output end of the buck chip U2, and the other end of the thirty-sixth resistor R36 is grounded GND through the sixteenth capacitor C16; one end of the thirty-seventh resistor R37 is connected to the other end of the fifth inductor L5, and the other end of the thirty-seventh resistor R37 is respectively connected to the feedback end of the buck chip U2 and one end of the thirty-eighth resistor R38, and the other end of the thirty-eighth resistor R38 is grounded GND; the seventeenth capacitor C17 is connected to the thirty-seventh resistor R37 in parallel; one end of the thirty-fifth resistor R35 is connected to the frequency setting end of the buck chip U2, and the other end of the thirty-fifth resistor R35 is grounded GND.

[0049] The second filter circuit 1433 may include an eighteenth capacitor C18, a nineteenth capacitor C19, a twentieth capacitor C20, a seventh voltage regulator tube Z7, a thirty-ninth resistor R39, and a twenty-first capacitor C21. Among them, one end of the eighteenth capacitor C18 is connected to the output end of the first step-down circuit 1432, and the other end of the eighteenth capacitor C18 is grounded GND; the nineteenth capacitor C19 and the twenty-first capacitor C20 are both connected in parallel with the eighteenth capacitor C18; the cathode of the seventh voltage regulator tube Z7 is connected to the output end of the first step-down circuit 1432, and the anode of the seventh voltage regulator tube Z7 is grounded GND; one end of the thirty-ninth resistor R39 is connected to the output end of the first step-down circuit 1432, and the other end of the thirty-ninth resistor R39 is connected to the first power supply voltage terminal VCC_5V, for outputting the first power supply voltage such as 5V; one end of the twenty-first capacitor C21 is connected to the first power supply voltage terminal VCC_5V, and the other end of the twenty-first capacitor C21 is grounded GND.

[0050] The second step-down circuit 1434 may include an LDO circuit (not shown), the input end of the LDO circuit is connected to the first power supply voltage end VCC_5V, and the output end of the LDO circuit is connected to the first power supply voltage end VCC_3V3, for stepping down the first power supply voltage such as 5V to obtain a second power supply voltage such as 3.3V.

[0051] Thus, through the cooperation of the above circuits, a stable and reliable first power supply voltage such as 5V and a second power supply voltage such as 3.3V can be obtained.

[0052] In some embodiments, reference Figure 7 The HBS communication module 110 includes: an HBS communication circuit 111, an HBS communication chip 112 and a first serial communication circuit 113. The HBS communication circuit 111 is connected to the HBS communication bus 150. The HBS communication chip 112 is connected to the HBS communication circuit 111. The first serial communication circuit 113 is connected to the HBS communication chip 112 and the main controller 130 respectively, and the main controller 130 is configured to communicate with the target device through the first serial communication circuit 113, the HBS communication chip 112 and the HBS communication circuit 111 in sequence.

[0053] Exemplarily, when the online controller 100 is connected to a target device such as an air conditioner via the HBS communication bus 150, the main controller 130 may communicate with the HBS communication chip 112 via the first serial communication circuit 113 to send a control instruction to the HBS communication chip 112, and then the HBS communication chip 112 generates a control signal based on the control instruction and sends it to the HBS communication circuit 111, so as to be sent to the target device via the HBS communication circuit 111 and the HBS communication bus 150 to control the target device.

[0054] In this way, HBS communication between the wire controller and the target device is achieved through the HBS communication module.

[0055] In some embodiments, reference Figure 8 The HBS communication circuit 111 includes an HBS transmission circuit, which includes: a first capacitor C1, a second capacitor C2, a first resistor R1, a third capacitor C3, a first inductor L1, and a second inductor L2. Among them, one end of the first capacitor C1 is connected to the first HBS bus HA; one end of the second capacitor C2 is connected to the second HBS bus HB; one end of the first resistor R1 is connected to the other end of the first capacitor C1, and the other end of the first resistor R1 is connected to the other end of the second capacitor C2; the third capacitor C3 is connected in parallel with the first resistor R1; one end of the first inductor L1 is connected to the other end of the first capacitor C1, and the other end of the first inductor L1 is connected to the first signal output terminal OUT(A) of the HBS communication chip 112; one end of the second inductor L2 is connected to the other end of the second capacitor C2, and the other end of the second inductor L2 is connected to the second signal output terminal OUT(B) of the HBS communication chip 112.

[0056] For further information, please refer to Figure 8 The HBS transmitting circuit also includes: a second resistor R2, a first voltage regulator tube Z1, a third resistor R3 and a second voltage regulator tube Z2. Among them, one end of the second resistor R2 is connected to the first driving end COL (A) of the HBS communication chip 112; the anode of the first voltage regulator tube Z1 is respectively connected to the other end of the second resistor R2 and the first signal output end OUT (A) of the HBS communication chip 112, and the cathode of the first voltage regulator tube Z1 is grounded; one end of the third resistor R3 is connected to the second driving end COL (B) of the HBS communication chip 112; the anode of the second voltage regulator tube Z2 is respectively connected to the other end of the third resistor R3 and the second signal output end OUT (B) of the HBS communication chip 112, and the cathode of the second voltage regulator tube Z2 is grounded.

[0057] Exemplarily, after the HBS communication chip 112 receives the control instruction sent by the main controller 130 through the first serial communication circuit 113, it generates a control signal based on the control instruction, and sends the control signal to the target device through the HBS sending circuit and the HBS communication bus 150 to control the target device. It should be noted that, in this example, the HBS sending circuit is driven by a triode inside the HBS communication chip 112, and static protection is performed by a voltage regulator.

[0058] In some embodiments, reference Figure 8The HBS communication circuit 111 includes an HBS receiving circuit, which includes: a fourth resistor R4, a fourth capacitor C4, a fifth resistor R5 and a fifth capacitor C5. One end of the fourth resistor R4 is connected to the first signal input terminal In(2) of the HBS communication chip 112, and the other end of the fourth resistor R4 is connected to the first HBS bus HA through the fourth capacitor C4; one end of the fifth resistor R5 is connected to the second signal input terminal In(1) of the HBS communication chip 112, and the other end of the fifth resistor R5 is connected to the second HBS bus HB through the fifth capacitor C5.

[0059] Exemplarily, the main controller 130 can also receive a signal sent by a target device such as an air conditioner through the HBS receiving circuit, the HBS communication chip 112 and the first serial communication circuit 113. In this way, when the line controller 100 communicates with the target device based on the HBS communication method, bidirectional transmission of the signal can be achieved. For example, the HBS communication chip 112 receives a signal sent by a target device such as an air conditioner through the HBS receiving circuit, and then forwards the signal to the main controller 130 through the first serial communication circuit 113, so that the main controller 130 can obtain relevant information of the target device such as the air conditioner.

[0060] In some embodiments, reference Figure 8 The first serial communication circuit 113 includes a serial transmission circuit, which includes: a sixth resistor R6, a seventh resistor R7, a first switch tube Q1, an eighth resistor R8 and a ninth resistor R9. Among them, one end of the sixth resistor R6 is connected to the first serial receiving terminal UART1-RX of the main controller 130; one end of the seventh resistor R7 is connected to the second power supply voltage VCC_3V3; the first end of the first switch tube Q1 is connected to the second power supply voltage VCC_3V3, and the second end of the first switch tube Q2 is respectively connected to the other end of the sixth resistor R6 and the other end of the seventh resistor R7; one end of the eighth resistor R8 is connected to the first power supply voltage VCC_5V; one end of the ninth resistor R9 is respectively connected to the third end of the first switch tube Q1 and the other end of the eighth resistor R8, and the other end of the ninth resistor R9 is connected to the serial output terminal OUT of the HBS communication chip 112.

[0061] For further information, please refer to Figure 8The first serial communication circuit 113 includes a serial receiving circuit, which includes: a tenth resistor R10, an eleventh resistor R11, a second switch tube Q2, a twelfth resistor R12, a thirteenth resistor R13 and a sixth capacitor C6. Among them, one end of the tenth resistor R10 is connected to the first serial transmission terminal UART1_TX of the main controller 130; one end of the eleventh resistor R11 is connected to the second power supply voltage VCC_3V3; the first end of the second switch tube Q2 is connected to the second power supply voltage VCC_3V3, and the second end of the second switch tube Q2 is respectively connected to the other end of the tenth resistor R10 and the other end of the eleventh resistor R11; one end of the twelfth resistor R12 is connected to the first power supply voltage VCC_5V; one end of the thirteenth resistor R13 is respectively connected to the third end of the second switch tube Q2 and the other end of the twelfth resistor R12, and the other end of the thirteenth resistor R13 is connected to the serial input terminal DATA_IN of the HBS communication chip 112; the sixth capacitor C6 is connected in series between the other end of the thirteenth resistor R13 and the ground.

[0062] It should be noted that when the HBS communication module 110 is powered, that is, the first power supply voltage terminal VCC_5V has a first power supply voltage such as 5V, and the second power supply voltage terminal VCC_3V3 has a second power supply voltage such as 3.3V. Under the action of the second power supply voltage such as 3.3V, the first switch tube Q1 and the second switch tube Q2 are turned on, and the first serial communication circuit 113 is turned on. The main controller 130 can communicate serially with the HBS communication chip 112 through the first serial communication circuit 113, such as UART communication.

[0063] It should be noted that the HBS communication chip 112 also includes some other peripheral circuits, such as a twenty-second capacitor C22 and a twenty-third capacitor C23, the specific connection relationship of which is shown in the figure and will not be repeated here.

[0064] In some embodiments, reference Fig. 9 , the 24V communication module 120 includes: at least one signal transmission circuit 121 and a control chip 122. Each signal transmission circuit 121 is respectively connected to the 24V power lines RC and C, and corresponding signal lines (such as G, W1, W2, etc.); the control chip 122 is respectively connected to at least one signal transmission circuit 121 and the main controller 130, and the main controller 130 is configured to send control signals to the target device through the control chip 122 and at least one signal transmission circuit 121 in sequence.

[0065] It should be noted that when the target device is an air conditioner, the signal line may include G, W1, W2, Y1, Y2, and O / B, wherein G is used to send an indoor fan control signal, W1 and W2 are used to send a heating control signal, and the heating levels of W1 and W2 are different, Y1 and Y2 are used to send a cooling control signal, and the cooling levels of Y1 and Y2 are different, and O / B is used to send a pump / belt auxiliary control signal. In addition, the signal line may also include RH, which is used to send a power supply signal. Each signal line corresponds to a signal sending circuit 121, so that the corresponding control signal is sent to the air conditioner through the signal sending circuit 121 and the signal line. In this way, the wire controller 100 can send a control signal to the target device through a 24V communication method.

[0066] In some embodiments, reference Fig.10 The signal sending circuit 121 includes: a fourteenth resistor R14, a fifteenth resistor R15, a sixteenth resistor R16, a third switch tube Q3, a first optical coupler U1 and a third voltage regulator tube Z3. Among them, one end of the fourteenth resistor R14 is connected to the second power supply voltage VCC_3V3; one end of the fifteenth resistor R15 is connected to the control end (such as G_EN) of the control chip 122; the sixteenth resistor R16 is connected in series between the other end of the fifteenth resistor R15 and the ground; the first end of the third switch tube Q3 is connected to the other end of the fifteenth resistor R15, and the second end of the third switch tube Q3 is grounded; the first end of the first optical coupler U1 is connected to the other end of the fourteenth resistor R14, the second end of the first optical coupler U1 is connected to the third end of the third switch tube Q3, the third end of the first optical coupler U1 is connected to the 24V power line RC, and the fourth end of the first optical coupler U1 is connected to the corresponding signal line (such as G); the cathode of the third voltage regulator tube Z3 is connected to the third end of the first optical coupler U1, and the anode of the third voltage regulator tube Z3 is connected to the fourth end of the first optical coupler U1. Among them, the 24V power line C is grounded.

[0067] Furthermore, a second fuse FU2 is connected in series between the third end of the first optical coupler U1 and the 24V power line RC for overcurrent protection.

[0068] Exemplarily, take the control chip 122 sending the indoor fan control signal through the signal line G as an example. The control chip 122 can send high and low level signals to the third switch tube Q3 through the control terminal G_EN to control the third switch tube Q3 to be turned on or off, thereby controlling the first optocoupler U1 to be turned on or off. Among them, when the first optocoupler U1 is turned on, the voltage of the 24V power line RC is transmitted to the signal line G through the first optocoupler U1, and the signal line G is a high level; when the first optocoupler U1 is turned off, the voltage of the 24V power line RC stops being transmitted to the signal line G through the first optocoupler U1, and the signal line G is a low level. The air conditioner obtains the corresponding indoor fan control signal based on the high and low levels of the signal line G to control the indoor fan.

[0069] It should be noted that when the signal lines are W1, W2, Y1, Y2, O / B, and RH respectively, Fig.10 The control terminal G_EN of the control chip 122 is replaced by W1_EN, W2_EN, Y1_EN, Y2_EN, O / B_EN, and RH_EN, and the signal line G is replaced by W1, W2, Y1, Y2, O / B, and RH, respectively. The specific circuit structure will not be described one by one here.

[0070] In some embodiments, reference Fig.11 The signal sending circuit 121 includes a power supply signal sending circuit 1211 and a control signal sending circuit 1212 , and the third end of the first optical coupler U1 in the control signal sending circuit 1212 is connected to the signal line corresponding to the power supply signal sending circuit 1211 .

[0071] It should be noted that the signal line RH is mainly used to send power supply signals, and the corresponding signal sending circuit 121 can be named as the power supply signal sending circuit 1211. The signal lines G, W1, W2, Y1, Y2, and O / B are mainly used to send control signals, and the corresponding signal sending circuit 121 can be named as the control signal sending circuit 1212. The signal line RH can be set selectively. When there is no signal line RH, the third end of the first optical coupler U1 in each control signal sending circuit 1212 is connected to the 24V power line RC; when there is a signal line RH, the third end of the first optical coupler U1 in some control signal sending circuits 1212 can be connected to the signal line RH corresponding to the power supply signal sending circuit 1211. The signal line RH can be connected to the 24V AC power supply RC or not.

[0072] Take the control chip 122 sending a heating control signal through the signal line W1 as an example. When the signal line RH is not connected to the 24 AC power supply RC, the control chip 122 can send a high-level signal to the third switch tube Q3 in the power supply signal sending circuit 1211 through the control terminal RH_EN, so that the first optocoupler U1 in the power supply signal sending circuit 1211 is turned on, and the voltage of the 24 power line RC is transmitted to the signal line RH through the first optocoupler U1. On the one hand, the air conditioner can obtain the power supply signal sent by the wire controller 100 based on the level of the signal line RH; on the other hand, the control chip 122 can send high and low level signals to the third switch tube Q3 in the control signal sending circuit 1212 through the control terminal W1_EN to control the third switch tube Q3 to be turned on or off, thereby controlling the first optocoupler U1 in the control signal sending circuit 1212 to be turned on or off. When the first optocoupler U1 in the control signal transmission circuit 1212 is turned on, the voltage of the signal line RH is transmitted to the signal line W1 through the first optocoupler U1, and the signal line W1 is at a high level; when the first optocoupler U1 in the control signal transmission circuit 1212 is turned off, the voltage of the signal line RH stops being transmitted to the signal line W1 through the first optocoupler U1, and the signal line W1 is at a low level. The air conditioner obtains the corresponding heating control signal based on the high and low levels of the signal line W1 to control the air conditioner.

[0073] When the signal line RH is connected to the 24-V AC power supply RC, when the signal line RH is connected to the air conditioner, the air conditioner can obtain a power supply signal based on the level of the signal line RH. When the control chip 122 sends a heating control signal through the signal line W1, the control chip 122 can send a high or low level signal to the third switch tube Q3 in the control signal sending circuit 1212 through the control terminal W1_EN to control the third switch tube Q3 to turn on or off, thereby controlling the first optocoupler U1 in the control signal sending circuit 1212 to turn on or off. Among them, when the first optocoupler U1 in the control signal sending circuit 1212 is turned on, the voltage of the signal line RH is transmitted to the signal line W1 through the first optocoupler U1, and the signal line W1 is a high level; when the first optocoupler U1 in the control signal sending circuit 1212 is turned off, the voltage of the signal line RH stops being transmitted to the signal line W1 through the first optocoupler U1, and the signal line W1 is a low level. The air conditioner obtains the corresponding heating control signal based on the high and low levels of the signal line W1 to control the air conditioner.

[0074] It should be noted that Fig.10 and Fig.11 The components in the signal transmission circuit in FIG. 1 are named the same, but in the actual circuit, they are different components. This is only for the convenience of explanation.

[0075] In some embodiments, continue to refer to Fig. 9The 24V communication module 120 also includes: at least one first detection circuit 123, which corresponds one-to-one to at least one signal sending circuit 121, each first detection circuit 123 is respectively connected to a corresponding signal line (such as G, W1, W2, etc.) and a control chip 122, and the control chip 122 is configured to detect the connection status of the corresponding signal line through the first detection circuit 123.

[0076] That is to say, the first detection circuit 123 can detect whether the signal lines in the 24V communication bus 160 of the wire controller 100 are all connected to the target device such as the air conditioner. If so, the wire controller 100 is allowed to communicate with the target device such as the air conditioner using the 24V communication method.

[0077] For example, take signal line G as an example. The control chip 122 can detect whether the signal line G is connected to a target device such as an air conditioner through the first detection circuit 123 corresponding to the signal line G, so as to send an indoor fan control signal to the air conditioner through the signal line G when connected.

[0078] In this way, by detecting the connection state of the signal line through the first detection circuit, it can be determined whether the current wire controller is connected to the target device through the 24V communication bus, thereby realizing automatic detection of the 24V communication mode.

[0079] In some embodiments, continue to refer to Fig.10 The first detection circuit 123 includes: a seventeenth resistor R17, an eighteenth resistor R18, a nineteenth resistor R19, a seventh capacitor C7, a first bidirectional voltage regulator ZVS1, a twentieth resistor R20, a fourth switch tube Q4, a twenty-first resistor R21, a twenty-second resistor R22, a twenty-third resistor R23 and an eighth capacitor C8. Among them, one end of the seventeenth resistor R17 is connected to the corresponding signal line (such as G); the eighteenth resistor R18 is connected in series between the other end of the seventeenth resistor R17 and the ground; one end of the nineteenth resistor R19 is connected to the other end of the seventeenth resistor R17; the seventh capacitor C7 is connected in series between the other end of the nineteenth resistor R19 and the ground; the first bidirectional voltage regulator ZVS1 is connected in parallel with the seventh capacitor C7; the twentieth resistor R20 is connected in parallel with the first bidirectional voltage regulator ZVS1; the first end of the fourth switch tube Q4 is connected to the other end of the nineteenth resistor R19 The second end of the fourth switch tube Q4 is connected to the ground; the twenty-first resistor R21 is connected in series between the third end of the fourth switch tube Q4 and the second power supply voltage VCC_3V3; the twenty-second resistor R22 is connected in series between the third end and the first end of the fourth switch tube Q4; one end of the twenty-third resistor R23 is connected to the third end of the fourth switch tube Q4, and the other end of the twenty-third resistor R23 is connected to the detection end (such as G_DET) of the control chip 122; the eighth capacitor C8 is connected in series between the other end of the twenty-third resistor R23 and the ground.

[0080] Exemplarily, take the signal line G as an example. The control chip 122 can output a low-level signal to the third switch tube Q3 through the control terminal G_EN, so that the third switch tube Q3 is turned off, and then the first optical coupler U1 is turned off, so as to avoid the voltage of the 24V power line RC affecting the detection result and causing misjudgment. It should be noted that when the signal line G is connected to a target device such as an air conditioner, the air conditioner will provide a high level to the signal line G. Therefore, when the signal line G is connected to the air conditioner, the fourth switch tube Q4 is turned on, and the detection terminal G_DET of the control chip 122 will obtain a low-level signal; when the signal line G is not connected to the air conditioner, the fourth switch tube Q4 is turned off, and the detection terminal G_DET of the control chip 122 will obtain a high-level signal. The control chip 122 can determine whether the signal line G is connected to the air conditioner based on the high and low level signals of the detection terminal G_DET, and then determine whether the line controller and the air conditioner communicate in a 24V communication mode.

[0081] It should be noted that when the signal lines are W1, W2, Y1, Y2, O / B, and RH respectively, Fig.10 The detection terminal G_DET of the control chip 122 in the embodiment can be replaced by W1_DET, W2_DET, Y1_DET, Y2_DET, O / B_DET, and RH_DET, respectively. The specific circuit structure will not be described one by one here. In addition, when the control chip 122 detects that each required signal line (some signal lines may not need to be connected) is connected to the target device such as an air conditioner, it is determined that the wire controller 100 is connected to the target device using the 24V communication bus 160, thereby allowing communication with the target device.

[0082] In some embodiments, reference Fig.12 , the 24V communication module 120 also includes: a first signal expansion circuit 124 and / or a second signal expansion circuit 125, each of which is connected to a signal transmission circuit 121 and a signal extension line PEK, and is configured to enable the signal transmission circuit 121 to send a control signal to the target device through the signal extension line PEK when the corresponding signal transmission circuit 121 does not have a corresponding signal line terminal. It should be noted that the lack of a corresponding signal line terminal here means that there is no corresponding external signal line, that is, there is no corresponding external signal connection port.

[0083] Exemplarily, the first signal expansion circuit 124 can send a control signal to the target device in the positive half cycle of the 24V AC voltage, and the second signal expansion circuit 125 can send a control signal to the target device in the negative half cycle of the 24V AC voltage. Fig.10, the control chip 122 can send high or low level signals to the third switch tube Q3 through the control terminal G_EN to control the third switch tube Q3 to turn on or off, thereby controlling the first optical coupler U1 to turn on or off, and the voltage of the 24V power line RC is selectively output to the internal signal line G through the first optical coupler U1. Fig.12 In the negative half cycle of the 24V AC voltage, the second signal expansion circuit 125 transmits the voltage on the internal signal line G to the signal expansion line PEK, and then sends a control signal to the target device such as an air conditioner through the signal expansion line PEK. In this way, even if there is no external signal line, the control signal can be sent to the target device through the signal expansion line and the signal expansion circuit.

[0084] It should be noted that the process of signal transmission based on the first signal extension circuit 124 is similar to the process of signal transmission based on the second signal extension circuit 125, which will not be described in detail here. In practical applications, only the first signal extension circuit 124 can be set, only the second signal extension circuit 125 can be set, and both the first signal extension circuit 124 and the second signal extension circuit 125 can be set, which is not limited here.

[0085] In some embodiments, continue to refer to Fig.12 The first signal extension circuit 124 includes: a twenty-fourth resistor R24, a twenty-fifth resistor R25, a fifth switch tube Q5, a first diode D1, a second diode D2 and a fourth voltage regulator tube Z4. Among them, one end of the twenty-fourth resistor R24 ​​is connected to the 24V power line C; one end of the twenty-fifth resistor R25 is connected to the other end of the twenty-fourth resistor R24; the first end of the fifth switch tube Q5 is connected to the other end of the twenty-fourth resistor R24; the cathode of the first diode D1 is connected to the other end of the twenty-fifth resistor R25 and the second end of the fifth switch tube Q5 respectively, and the anode of the first diode D1 is connected to the corresponding signal sending circuit (such as the signal sending circuit corresponding to Y1); the anode of the second diode D2 is connected to the third end of the fifth switch tube Q5, and the cathode of the second diode D2 is connected to the signal extension line PEK; the cathode of the fourth voltage regulator tube Z4 is connected to the anode of the first diode D1, and the anode of the fourth voltage regulator tube Z4 is connected to the cathode of the second diode D2.

[0086] In some embodiments, continue to refer to Fig.12The second signal extension circuit 125 includes: a twenty-sixth resistor R26, a twenty-seventh resistor R27, a sixth switch tube Q6, a third diode D3, a fourth diode D4, and a fifth voltage-stabilizing tube Z5. Among them, one end of the twenty-sixth resistor R26 is connected to the 24V power line C; one end of the twenty-seventh resistor R27 is connected to the other end of the twenty-sixth resistor R26; the first end of the sixth switch tube Q6 is connected to the other end of the twenty-sixth resistor R26; the anode of the third diode D3 is connected to the other end of the twenty-seventh resistor R27 and the second end of the sixth switch tube Q6 respectively, and the cathode of the third diode D3 is connected to the corresponding signal sending circuit (such as the signal sending circuit corresponding to G); the cathode of the fourth diode D4 is connected to the third end of the sixth switch tube Q6, and the anode of the fourth diode D4 is connected to the signal extension line PEK; the cathode of the fifth voltage-stabilizing tube Z5 is connected to the cathode of the third diode D3, and the anode of the fifth voltage-stabilizing tube Z5 is connected to the anode of the fourth diode D4.

[0087] For example, the signal line G is still used as an example. When there is no external signal line G, refer to Fig.10 , the control chip 122 can send high or low level signals to the third switch tube Q3 through the control terminal G_EN to control the third switch tube Q3 to turn on or off, thereby controlling the first optical coupler U1 to turn on or off, and the voltage of the 24V power line RC is selectively output to the internal signal line G through the first optical coupler U1. Fig.12 In the negative half cycle of the 24V AC voltage, the third diode D3, the fourth diode D4 and the sixth switch tube Q6 are all turned on. At this time, the voltage on the internal signal line G is transmitted to the signal extension line PEK through the third diode D3, the sixth switch tube Q6 and the fourth diode D4, and then the control signal is sent to the target device such as the air conditioner through the signal extension line PEK. In this way, even if there is no external signal line, the control signal can be sent to the target device through the signal extension line and the signal extension circuit.

[0088] It should be noted that the process of sending a signal based on the first signal extension circuit 124 is similar to the process of sending a signal based on the second signal extension circuit 125 , and will not be described in detail here.

[0089] In some embodiments, reference Fig.12 The 24V communication module 120 also includes: a second detection circuit 126 corresponding to the first signal extension circuit 124 and / or the second signal extension circuit 125, the second detection circuit 126 is respectively connected to the signal extension line PEK and the detection end PEK_DET of the control chip 122, and the control chip 122 is configured to detect the connection status of the signal extension line PEK through the second detection circuit 126.

[0090] That is, the control chip 122 detects whether the signal extension line PEK is connected to the target device such as the air conditioner through the second detection circuit 126. It should be noted that when the control chip 122 detects that each required signal line (some signal lines may not need to be connected) and the signal extension line PEK (when connection is required) are connected to the target device such as the air conditioner, it is determined that the wire controller 100 is connected to the target device using the 24V communication bus 160, thereby allowing communication with the target device.

[0091] It should be noted that the circuit structure of the second detection circuit 126 is the same as that of the first detection circuit 123 , and specific details are referred to the first detection circuit 123 , which will not be described again here.

[0092] In some embodiments, reference Fig.13 The 24V communication module 120 also includes: a power detection circuit 127, which is respectively connected to the 24V power lines RC and C and the control chip 122, and the control chip 122 is configured to detect the connection status of the 24V power line through the power detection circuit 127.

[0093] That is to say, the control chip 122 also detects whether the 24V power line is connected to the target device such as an air conditioner through the power detection circuit 127, and only determines that the wire controller 100 is connected to the target device using the 24V communication bus 160 when it is connected, thereby allowing communication with the target device.

[0094] Exemplarily, when the control chip 122 detects through the power detection circuit 127 that the 24V power line is connected to the target device such as an air conditioner, and at the same time detects through the first detection circuit 123 that the required signal line is connected to the target device such as an air conditioner, and detects through the second detection circuit 126 that the required signal extension line PEK is connected to the target device such as an air conditioner, it is determined that the wire controller 100 is connected to the target device through the 24V communication bus 160, thereby allowing the wire controller 100 to communicate with the target device using a 24V communication method.

[0095] It can be understood that if the control chip 122 detects that a signal line that does not need to be connected is connected to a target device such as an air conditioner, it means that the signal line may be misconnected or should not be connected. Thus, it can not only identify whether the wire controller 100 is connected to the target device through the 24V communication bus 160, but also identify whether the connected signal line is misconnected, thereby improving the reliability of communication.

[0096] In some embodiments, continue to refer to Fig.13The power detection circuit 127 includes: a third detection circuit 1271 and a fourth detection circuit 1272. The third detection circuit 1271 is respectively connected to one power line RC in the 24V power line and a detection terminal RC_DET of the control chip 122, and the control chip 122 is configured to detect the connection state of one power line RC in the 24V power line through the third detection circuit 1271; the fourth detection circuit 1272 is respectively connected to another power line C in the 24V power line and another detection terminal C_DET of the control chip 122, and the control chip 122 is configured to detect the connection state of another power line C in the 24V power line through the fourth detection circuit 1272.

[0097] That is, the third detection circuit 1271 can detect whether the 24V power line RC is connected to the target device such as the air conditioner, and the fourth detection circuit 1272 can detect whether the 24V power line C is connected to the target device such as the air conditioner. In this way, by individually detecting the connection status of each power line, the connection status of each power line can be determined, thereby ensuring the reliability of communication.

[0098] It should be noted that the circuit structures of the third detection circuit 1271 and the fourth detection circuit 1272 are the same as the circuit structure of the first detection circuit 123 , and specific reference is made to the first detection circuit 123 , which will not be described again here.

[0099] In some embodiments, the control chip 122 communicates with the main controller 130 using a serial bus, for example, Fig.14 , the serial receiving end of the control chip 122 is connected to the second serial transmitting end UART2_TX of the main controller 130 through the 40th resistor R40, and the serial transmitting end of the control chip 122 is connected to the second serial receiving end UART2_RX of the main controller 130 through the 41st resistor R41. The main controller 130 can receive the signal sent by the control chip 122 through the second serial receiving end UART2_RX and the 41st resistor R41, and send a signal to the control chip 122 through the second serial transmitting end UART2_TX and the 40th resistor R40, and perform serial communication with the control chip 122, such as UART communication.

[0100] In some embodiments, the wire controller 150 is connected to the target device via a wiring terminal. Fig.15 , the wire controller 150 can be connected to the target device through two connection terminals J1 and J2.

[0101] For example, when the wire controller 100 is connected to a target device such as an air conditioner through the HBS communication bus 150, the first HBS bus HA in the HBS communication bus 150 can be connected to the corresponding interface of the target device such as the air conditioner through the wiring terminal J1, and the second HBS bus HB in the HBS communication bus 150 can be connected to the corresponding interface of the target device such as the air conditioner through the wiring terminal J2.

[0102] When the wire controller 100 is connected to a target device such as an air conditioner through a 24V communication bus 160, the 24V power line C and the signal lines RH, W1, W2, C and O / B in the 24V communication bus 160 can be connected to the corresponding interface of the target device such as the air conditioner through the wiring terminal J1, and the 24V power line RC, signal lines Y1, Y2, G, and signal extension line PEK in the 24V communication bus 160 can be connected to the corresponding interface of the target device such as the air conditioner through the wiring terminal J2.

[0103] It should be noted that the 24V AC voltage of the 24V power line can be provided by an external 24V AC power source or by a target device such as an air conditioner, and there is no restriction here. Fig.15 The positive and negative signs in AC24V+ and AC24V- are only used to illustrate the two power wires and do not distinguish between positive and negative.

[0104] It should be noted that the specific models or parameters of the above-mentioned chips, switches, resistors, capacitors, inductors, etc. can be selected and set according to actual needs and are not limited here.

[0105] In summary, according to the wire controller of the embodiment of the utility model, power is taken from the HBS communication bus or the 24V communication bus through the power module to power the HBS communication module, the 24V communication module and the main controller. The main controller can communicate with the target device through the HBS communication module or the 24V communication module, so that the wire controller can be compatible with the HBS communication mode and the 24V communication mode, and has wide applicability.

[0106] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", 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 utility model. 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 can be combined in any one or more embodiments or examples in a suitable manner.

[0107] 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 utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0108] 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.

[0109] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A wire controller, characterized in that: Used to control the target device, the wire controller includes: An HBS communication module, adapted to be connected to the target device via an HBS communication bus; A 24V communication module, adapted to be connected to the target device via a 24V communication bus; a main controller, the main controller being connected to the HBS communication module and the 24V communication module respectively, and being configured to communicate with the target device through the HBS communication module or the 24V communication module; A power supply module, which is respectively connected to the HBS communication bus, the 24V communication bus, the HBS communication module, the 24V communication module and the main controller, and is configured to generate a power supply voltage based on the communication voltage of the HBS communication bus or the 24V AC voltage of the 24V communication bus to power the HBS communication module, the 24V communication module and the main controller.

2. The wire controller according to claim 1, characterized in that: The power module comprises: a first rectifier circuit, the first rectifier circuit being connected to the HBS communication bus and configured to rectify the communication voltage to obtain a first DC voltage; a second rectifier circuit, the second rectifier circuit being connected to the 24V communication bus and configured to rectify the 24V AC voltage to obtain the first DC voltage; A voltage conversion circuit is connected to the first rectifier circuit and the second rectifier circuit respectively, and is configured to convert the first DC voltage to generate the supply voltage.

3. The wire controller according to claim 1, characterized in that: The HBS communication module includes: An HBS communication circuit, wherein the HBS communication circuit is connected to the HBS communication bus; An HBS communication chip, wherein the HBS communication chip is connected to the HBS communication circuit; A first serial communication circuit, wherein the first serial communication circuit is connected to the HBS communication chip and the main controller respectively, and the main controller is configured to communicate with the target device through the first serial communication circuit, the HBS communication chip and the HBS communication circuit in sequence.

4. The wire controller according to claim 3, characterized in that: The HBS communication bus includes a first HBS bus and a second HBS bus, the HBS communication circuit includes an HBS sending circuit and an HBS receiving circuit, and the HBS sending circuit includes: a first capacitor, one end of which is connected to the first HBS bus; a second capacitor, one end of which is connected to the second HBS bus; a first resistor, one end of the first resistor being connected to the other end of the first capacitor, and the other end of the first resistor being connected to the other end of the second capacitor; a third capacitor, the third capacitor being connected in parallel with the first resistor; a first inductor, one end of the first inductor being connected to the other end of the first capacitor, and the other end of the first inductor being connected to the first signal output end of the HBS communication chip; a second inductor, one end of the second inductor being connected to the other end of the second capacitor, and the other end of the second inductor being connected to the second signal output end of the HBS communication chip; a second resistor, one end of which is connected to the first driving end of the HBS communication chip; A first voltage regulator tube, wherein an anode of the first voltage regulator tube is connected to the other end of the second resistor and a first signal output end of the HBS communication chip respectively, and a cathode of the first voltage regulator tube is grounded; a third resistor, one end of which is connected to the second driving end of the HBS communication chip; A second voltage regulator tube, wherein an anode of the second voltage regulator tube is respectively connected to the other end of the third resistor and the second signal output end of the HBS communication chip, and a cathode of the second voltage regulator tube is grounded; The HBS receiving circuit comprises: a fourth resistor and a fourth capacitor, wherein one end of the fourth resistor is connected to the first signal input end of the HBS communication chip, and the other end of the fourth resistor is connected to the first HBS bus through the fourth capacitor; a fifth resistor and a fifth capacitor, wherein one end of the fifth resistor is connected to the second signal input end of the HBS communication chip, and the other end of the fifth resistor is connected to the second HBS bus through the fifth capacitor.

5. The wire controller according to claim 3, characterized in that: The first serial communication circuit includes a serial transmission circuit and a serial receiving circuit, and the serial transmission circuit includes: a sixth resistor, one end of which is connected to the first serial receiving end of the main controller; a seventh resistor, one end of which is connected to the second supply voltage; a first switch tube, wherein a first end of the first switch tube is connected to the second power supply voltage, and a second end of the first switch tube is respectively connected to the other end of the sixth resistor and the other end of the seventh resistor; an eighth resistor, one end of which is connected to the first supply voltage; a ninth resistor, one end of which is respectively connected to the third end of the first switch tube and the other end of the eighth resistor, and the other end of the ninth resistor is connected to the serial output end of the HBS communication chip; The serial receiving circuit comprises: a tenth resistor, one end of which is connected to the first serial transmitting end of the main controller; an eleventh resistor, one end of the eleventh resistor being connected to the second supply voltage; a second switch tube, wherein a first end of the second switch tube is connected to the second power supply voltage, and a second end of the second switch tube is respectively connected to the other end of the tenth resistor and the other end of the eleventh resistor; a twelfth resistor, one end of which is connected to the first supply voltage; a thirteenth resistor, one end of the thirteenth resistor being respectively connected to the third end of the second switch tube and the other end of the twelfth resistor, and the other end of the thirteenth resistor being connected to the serial input end of the HBS communication chip; A sixth capacitor is connected in series between the other end of the thirteenth resistor and the ground.

6. The wire controller according to claim 1, characterized in that: The 24V communication bus includes a 24V power line and at least one signal line, and the 24V communication module includes: At least one signal sending circuit, each of the signal sending circuits is respectively connected to the 24V power line and the corresponding signal line; A control chip, wherein the control chip is connected to the at least one signal sending circuit and the main controller respectively, and the main controller is configured to send a control signal to the target device through the control chip and the at least one signal sending circuit in sequence.

7. The wire controller according to claim 6, characterized in that: The signal sending circuit comprises: a fourteenth resistor, one end of which is connected to the second power supply voltage; a fifteenth resistor, one end of which is connected to the control end of the control chip; a sixteenth resistor, the sixteenth resistor being connected in series between the other end of the fifteenth resistor and ground; a third switch tube, wherein a first end of the third switch tube is connected to the other end of the fifteenth resistor, and a second end of the third switch tube is grounded; a first optical coupler, wherein a first end of the first optical coupler is connected to the other end of the fourteenth resistor, a second end of the first optical coupler is connected to the third end of the third switch tube, a third end of the first optical coupler is connected to the 24V power line, and a fourth end of the first optical coupler is connected to a corresponding signal line; A third voltage regulator tube, wherein a cathode of the third voltage regulator tube is connected to the third end of the first optical coupler, and an anode of the third voltage regulator tube is connected to the fourth end of the first optical coupler.

8. The wire controller according to claim 7, characterized in that: The signal sending circuit includes a power supply signal sending circuit and a control signal sending circuit, and the third end of the first optical coupler in the control signal sending circuit is connected to a signal line corresponding to the power supply signal sending circuit.

9. The wire controller according to claim 6, characterized in that: The 24V communication module also includes: at least one first detection circuit, which corresponds one-to-one to the at least one signal sending circuit, each of the first detection circuits is respectively connected to the corresponding signal line and the control chip, and the control chip is configured to detect the connection status of the corresponding signal line through the first detection circuit.

10. The wire controller according to claim 9, characterized in that: The first detection circuit comprises: a seventeenth resistor, one end of which is connected to the corresponding signal line; an eighteenth resistor, the eighteenth resistor being connected in series between the other end of the seventeenth resistor and ground; a nineteenth resistor, one end of the nineteenth resistor being connected to the other end of the seventeenth resistor; a seventh capacitor, the seventh capacitor being connected in series between the other end of the nineteenth resistor and ground; A first bidirectional voltage regulator tube, wherein the first bidirectional voltage regulator tube is connected in parallel with the seventh capacitor; A twentieth resistor, which is connected in parallel with the first bidirectional voltage regulator; a fourth switch tube, wherein a first end of the fourth switch tube is connected to the other end of the nineteenth resistor, and a second end of the fourth switch tube is grounded; a twenty-first resistor, the twenty-first resistor being connected in series between the third end of the fourth switch tube and the second power supply voltage; a twenty-second resistor, the twenty-second resistor being connected in series between the third end and the first end of the fourth switch tube; a twenty-third resistor, one end of the twenty-third resistor being connected to the third end of the fourth switch tube, and the other end of the twenty-third resistor being connected to the detection end of the control chip; An eighth capacitor, wherein the eighth capacitor is connected in series between the other end of the twenty-third resistor and the ground.

11. The wire controller according to claim 6, characterized in that: The 24V communication module also includes: a first signal expansion circuit and / or a second signal expansion circuit, each of which is connected to a signal sending circuit and a signal expansion line, and is configured to enable the signal sending circuit to send a control signal to the target device through the signal extension line when the corresponding signal sending circuit does not have a corresponding signal line terminal.

12. The wire controller according to claim 11, characterized in that: The first signal expansion circuit comprises: A twenty-fourth resistor, one end of which is connected to the 24V power line; a twenty-fifth resistor, one end of the twenty-fifth resistor being connected to the other end of the twenty-fourth resistor; a fifth switch tube, wherein a first end of the fifth switch tube is connected to the other end of the twenty-fourth resistor; a first diode, wherein a cathode of the first diode is connected to the other end of the twenty-fifth resistor and the second end of the fifth switch tube respectively, and an anode of the first diode is connected to a corresponding signal sending circuit; a second diode, wherein an anode of the second diode is connected to the third end of the fifth switch tube, and a cathode of the second diode is connected to the signal extension line; a fourth voltage regulator tube, wherein the cathode of the fourth voltage regulator tube is connected to the anode of the first diode, and the anode of the fourth voltage regulator tube is connected to the cathode of the second diode; The second signal expansion circuit comprises: A twenty-sixth resistor, one end of which is connected to the 24V power line; a twenty-seventh resistor, one end of the twenty-seventh resistor being connected to the other end of the twenty-sixth resistor; a sixth switch tube, wherein a first end of the sixth switch tube is connected to the other end of the twenty-sixth resistor; a third diode, wherein an anode of the third diode is connected to the other end of the twenty-seventh resistor and the second end of the sixth switch tube respectively, and a cathode of the third diode is connected to a corresponding signal sending circuit; a fourth diode, wherein a cathode of the fourth diode is connected to the third end of the sixth switch tube, and an anode of the fourth diode is connected to the signal extension line; A fifth voltage-stabilizing tube, wherein the cathode of the fifth voltage-stabilizing tube is connected to the cathode of the third diode, and the anode of the fifth voltage-stabilizing tube is connected to the anode of the fourth diode.

13. The wire controller according to claim 11, characterized in that: The 24V communication module also includes: a second detection circuit corresponding to the first signal extension circuit and / or the second signal extension circuit, the second detection circuit is respectively connected to the signal extension line and the control chip, and the control chip is configured to detect the connection status of the signal extension line through the second detection circuit.

14. The wire controller according to claim 6, characterized in that: The 24V communication module also includes: a third detection circuit, the third detection circuit being connected to one of the 24V power lines and a detection end of the control chip respectively, and the control chip being configured to detect a connection state of one of the 24V power lines through the third detection circuit; A fourth detection circuit, wherein the fourth detection circuit is respectively connected to another power line in the 24V power line and another detection end of the control chip, and the control chip is configured to detect the connection status of another power line in the 24V power line through the fourth detection circuit.

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