WO2019128309A1 - 空调器通讯装置、通讯方法及空调器 - Google Patents

空调器通讯装置、通讯方法及空调器 Download PDF

Info

Publication number
WO2019128309A1
WO2019128309A1 PCT/CN2018/104917 CN2018104917W WO2019128309A1 WO 2019128309 A1 WO2019128309 A1 WO 2019128309A1 CN 2018104917 W CN2018104917 W CN 2018104917W WO 2019128309 A1 WO2019128309 A1 WO 2019128309A1
Authority
WO
WIPO (PCT)
Prior art keywords
communication
circuit unit
unit
air conditioner
signal
Prior art date
Application number
PCT/CN2018/104917
Other languages
English (en)
French (fr)
Inventor
许国景
刘聚科
程永甫
Original Assignee
青岛海尔空调器有限总公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 青岛海尔空调器有限总公司 filed Critical 青岛海尔空调器有限总公司
Publication of WO2019128309A1 publication Critical patent/WO2019128309A1/zh

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/64—Electronic processing using pre-stored data
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/88—Electrical aspects, e.g. circuits

Definitions

  • the invention belongs to the technical field of air conditioning, and in particular to an air conditioner, a communication device thereof and a communication method.
  • a communication line is arranged between the indoor unit and the outdoor unit of most inverter air conditioners, and the indoor unit and the outdoor unit communicate through the communication line, and the operation of the indoor unit and the outdoor unit are coordinated through communication to complete the operation control of the air conditioner.
  • An object of the present invention is to provide an air conditioner communication device and a communication method for realizing communication between an indoor unit and an outdoor unit in which a communication line does not exist.
  • the air conditioner communication device provided by the present invention is implemented by the following technical solutions:
  • An air conditioner communication device comprises an indoor unit communication circuit and an outdoor unit communication circuit, wherein the indoor unit communication circuit comprises an indoor power supply end, and a switch connected between the indoor power supply end and the outdoor power supply end a circuit unit, a signal transmission control circuit unit connected to the switch circuit unit, the switch circuit unit communicating/disconnecting the power supply line under control of the signal transmission control circuit unit;
  • the outdoor unit communication circuit includes The outdoor power supply terminal and the signal receiving circuit unit connected to the outdoor power supply terminal;
  • the signal transmission control circuit unit controls the on/off state of the switch circuit unit according to the pre-transmitted communication content, based on the switch
  • the on/off state of the circuit unit transmits the communication content to the signal receiving circuit unit, and the signal receiving circuit unit receives and identifies the communication content.
  • the switch circuit unit includes a relay unit, and a switch of the relay unit is formed on the power supply line.
  • the signal receiving circuit unit includes a photocoupler, and the light emitting end of the photocoupler is connected to the outdoor power supply terminal, and the light receiving end of the photocoupler outputs The high and low level signals corresponding to the on/off state of the switching circuit unit.
  • the present invention also provides an air conditioner comprising an indoor unit and an outdoor unit, the air conditioner further comprising the above air conditioner communication device.
  • the air conditioner communication method provided by the present invention is implemented by the following technical solutions:
  • An air conditioner communication method comprising a communication device having an indoor unit communication circuit and an outdoor unit communication circuit, the communication method comprising:
  • the signal transmission control circuit unit in the indoor unit communication circuit acquires the pre-transmitted communication content, and controls the on-off state of the switch circuit unit in the indoor unit communication circuit according to the pre-transmitted communication content, based on the switch circuit Transmitting, by the on-off state of the unit, the pre-transmitted communication content;
  • the signal receiving circuit unit in the outdoor unit communication circuit receives and identifies the communication content
  • the indoor unit communication circuit includes an indoor power supply end, the switch circuit unit connected to a power connection between the indoor power supply end and the outdoor power supply end, and the signal connected to the switch circuit unit. a control circuit unit that communicates/disconnects the power supply line under control of the signal transmission control circuit unit; the outdoor unit communication circuit includes the outdoor power supply terminal, and the outdoor unit The signal receiving circuit unit connected to the power supply terminal.
  • the signal transmission control circuit unit performs the following process before controlling the on-off state of the switch circuit unit in the indoor unit communication circuit according to the pre-transmitted communication content:
  • the signal transmission control circuit unit controls an on-off state of the switch circuit unit according to a known communication start identifier, and transmits the communication start identifier based on an on-off state of the switch circuit unit;
  • the signal receiving circuit unit After receiving and identifying the communication start identifier, the signal receiving circuit unit transfers to the communication processing process, and performs a process of receiving and identifying the communication content.
  • the signal receiving circuit unit transfers to the communication processing process after the air conditioner operating condition satisfies the preset condition and the communication start identifier is recognized.
  • the communication content is represented by a byte stream; the signal receiving circuit unit identifies the communication content characterized by the byte stream based on the received high and low level signals.
  • the signal transmission control circuit unit sequentially controls the switching of the switching circuit unit according to the set bit interval time, according to the switching of the switching circuit unit characterized by the bit in the byte stream.
  • the signal receiving circuit unit sequentially acquires the high and low level signals according to the set bit interval time, and identifies the byte stream based on the correspondence between the known high and low level signals and the bits of the byte stream. Bits, which in turn identify the communication content represented by the byte stream.
  • the signal receiving circuit unit sequentially acquires high and low level signals according to the set bit interval time, and specifically includes:
  • a set interval interval if the signal receiving circuit unit receives a high level pulse signal greater than the set number, determining that the signal received during the set bit interval is a high level signal; Otherwise, it is determined that the signal received during the set bit interval is a low level signal.
  • the advantages and positive effects of the present invention are: the air conditioner communication device and the communication method provided by the present invention, which are provided with a signal transmission control circuit unit and an indoor power supply terminal and an outdoor power supply in an indoor unit communication circuit.
  • a switch circuit unit on the power connection line between the power terminals, a signal receiving circuit unit is disposed in the outdoor unit communication circuit, and the signal transmission control circuit unit controls the on/off state of the switch circuit unit according to the pre-transmitted communication content, based on the switch circuit
  • the on/off state of the unit transmits the communication content to the signal receiving circuit unit, and the signal receiving circuit unit receives and identifies the communication content, thereby realizing communication between the indoor unit and the outdoor unit.
  • the communication between the indoor unit and the outdoor unit is realized by using the power line and the corresponding circuit unit, thereby realizing communication between the internal and external units without the communication line, and the internal and external communication can be realized.
  • the function of communication between the external units can improve the performance of the air conditioner.
  • the device provided by the invention has a simple structure, and the method is effective and reliable, thereby completing complex air conditioner performance at a low cost.
  • FIG. 1 is a block diagram showing the structure of an air conditioner communication device according to the present invention.
  • FIG. 2 is a specific circuit schematic diagram of an indoor unit communication circuit based on the block diagram of FIG. 1;
  • FIG. 3 is a specific circuit schematic diagram of an outdoor unit communication circuit based on the block diagram of FIG. 1;
  • FIG. 4 is a flow chart of an embodiment of an air conditioner communication method based on the present invention.
  • FIG. 1 there is shown a block diagram of an embodiment of an air conditioner communication device according to the present invention.
  • the air conditioner communication device of this embodiment includes an indoor unit communication circuit 100 and an outdoor unit communication circuit 200.
  • the indoor unit communication circuit 100 includes an indoor power supply terminal 11, a switch circuit unit 12, and a signal transmission control circuit unit 13.
  • the outdoor unit communication circuit 200 includes an outdoor power supply terminal 21 and a signal receiving circuit unit 22.
  • the indoor unit communication circuit 100 and the outdoor unit communication circuit 200 are connected by a power connection.
  • the switch circuit unit 12 is connected to a power supply line between the indoor unit communication circuit 100 and the outdoor unit communication circuit 200, and the signal transmission control circuit unit 13 is connected to the switch circuit unit 12.
  • the signal transmission control circuit unit 13 controls the on-off state of the switch circuit unit 12 based on the pre-transmitted communication content, and transmits the communication content on the power supply line based on the on-off state of the switch circuit unit 21.
  • the signal receiving circuit unit 22 is connected to the outdoor power supply terminal 21, and the signal receiving circuit unit 22 receives and recognizes the communication content transmitted from the power supply line.
  • the switch circuit unit 12 is implemented with a structure having a certain hysteresis when turned on and off to ensure accurate transmission of the communication content.
  • the signal transmission control circuit unit 13 controls the on-off state of the switch circuit unit 12 according to the pre-transmitted communication content, and transmits the communication content to the signal reception based on the on-off state of the switch circuit unit 12.
  • the circuit unit 22, the signal receiving circuit unit 22 receives and identifies the communication content, thereby realizing communication between the indoor unit and the outdoor unit.
  • the communication between the indoor unit and the outdoor unit is realized by the power line and the corresponding circuit unit, thereby realizing communication between the internal and external units without the communication line, and the internal and external communication can be realized.
  • the function of communication between the machines can improve the performance of the air conditioner.
  • the apparatus of this embodiment has a simple structure, thereby completing complicated air conditioner performance at a low cost.
  • FIG. 2 shows a specific circuit schematic diagram of an indoor unit communication circuit based on the block diagram of FIG. 1
  • FIG. 3 shows a specific circuit schematic diagram of the outdoor unit communication circuit based on the block diagram of FIG. 1.
  • the switching circuit unit is implemented using a relay unit.
  • AC_L1 and AC_N1 are power connections from the indoor power supply terminal, and are also connected to the outdoor power supply terminal to supply power to the outdoor unit.
  • the switch K1 of the relay unit is formed on the power line, specifically, on the power line AC_L1.
  • the relay unit is controlled by a signal transmission control circuit unit (not shown), and the switch K1 is closed or opened under the control of the signal transmission control circuit unit.
  • the switch K1 is closed, the power supply line AC_L1 is connected to supply power to the outdoor unit; when the switch K1 is disconnected, the power supply line AC_L1 is disconnected, and the outdoor unit is no longer supplied with power.
  • the signal receiving circuit unit includes a photocoupler U1, and the light emitting ends of the photocoupler U1 are respectively connected to the outdoor power supply terminals AC_L and AC_N, and the light receiving end output and switching circuit unit of U1 are respectively connected.
  • the on/off state corresponds to the high and low level signals.
  • the anode of the diode as the light-emitting end of the photocoupler U1 is connected to the outdoor power supply terminal AC_L through the resistor R1, the capacitor C1 and the diode D1, and the anode of the diode is connected to the outdoor power supply terminal AC_N through the resistor R2-R10.
  • the emitter of the transistor as the light receiving end of the photocoupler U1 serves as the receiving signal output terminal RX.
  • the pull-down resistor R11 is connected to the ground GND, and on the other hand, the high and low level signals are output through the resistor R12; the collector of the triode is connected to the power source VCC.
  • the signal output from the receiving signal output terminal RX is received by other circuit portions of the signal receiving circuit unit, and then the communication content is recognized.
  • the high level signal or the low level signal outputted by the receiving signal output terminal RX corresponds to the closing and conducting of the switch K1 in the switching circuit unit.
  • the communication content corresponding to the on-off state of the switch circuit unit can be transmitted at the indoor machine end by means of the control of the switch circuit unit, so that, at the outdoor unit end, the output can be outputted to the receive signal output terminal RX.
  • the level signal recognizes the communication content corresponding to the on-off state of the switch circuit unit, thereby implementing communication between the indoor unit and the outdoor unit. For a more specific communication process, see the description of the communication method below.
  • the air conditioner includes an indoor unit communication circuit and an outdoor unit communication circuit
  • the indoor unit communication circuit includes an indoor power supply end, and a switch circuit connected between the indoor power supply end and the outdoor power supply end.
  • the unit and the signal transmission control circuit unit connected to the switch circuit unit;
  • the outdoor unit communication circuit includes an outdoor power supply terminal and a signal receiving circuit unit connected to the outdoor power supply terminal.
  • the method for implementing air conditioner communication in this embodiment includes the following process:
  • Step 41 The signal transmission control circuit unit in the indoor unit communication circuit acquires the pre-transmitted communication content, and controls the on-off state of the switch circuit unit in the indoor unit communication circuit according to the pre-transmitted communication content, based on the on-off state of the switch circuit unit. Transmit pre-sent communication content.
  • the pre-transmitted communication content is sent by the main control circuit of the indoor unit and transmitted to the signal transmission control circuit unit.
  • the signal transmission control circuit unit can also be implemented by the main control circuit of the indoor unit.
  • the communication content is in one-to-one correspondence with the on-off state of the switch circuit unit, and the signal transmission control circuit unit controls the on-off state of the switch circuit unit according to the communication content to be transmitted, and transmits the transmission on the power line based on the on-off state of the switch circuit unit.
  • Communication content The communication content transmitted on the power line will be transmitted to the outdoor unit through the power line.
  • Step 42 The signal receiving circuit unit in the outdoor unit communication circuit receives and identifies the communication content.
  • the communication content transmitted by the indoor unit through the power line is reflected in the outdoor unit communication circuit and received by the signal receiving circuit unit in the outdoor unit communication circuit; the outdoor unit communication circuit will be identified according to the correspondence between the known received signal and the communication content.
  • the communication content corresponding to the received signal is output, thereby realizing communication between the indoor unit and the outdoor unit. Based on the communication between the indoor unit and the outdoor unit, the indoor unit and the outdoor unit can work together to complete the function based on the communication between the internal and external units, and improve the running performance of the air conditioner.
  • the communication content is transmitted only through the power line, and the signal transmission control circuit unit is based on the pre-sent communication in order to ensure that the outdoor unit communication circuit accurately receives the communication content.
  • the signal transmission control circuit unit controls the on/off state of the switch circuit unit according to the known communication start identifier, based on the switch circuit unit The off state transmission communication start identifier. After receiving and identifying the communication start identifier, the signal receiving circuit unit in the outdoor unit communication circuit transfers to the communication processing process to perform the process of receiving and identifying the communication content.
  • the signal receiving circuit unit only meets the preset condition in the air conditioner operating condition, and recognizes the communication start. After the identification, transfer to the communication process. If the signal receiving circuit unit does not recognize the communication start flag, or although the communication start flag is recognized, but the air conditioner operating condition does not satisfy the preset condition, the communication processing process is not performed.
  • the preset condition for entering the communication processing is that the outdoor unit power-on time does not exceed the power-on time limit. For example, the power-on time is 30s.
  • the communication between the indoor unit and the outdoor unit occurs only during the power-on time limit in which the outdoor unit power-on time does not exceed 30 seconds. Outside of this time, communication between the internal and external units is not performed.
  • the outdoor unit signal receiving circuit unit recognizes the communication start identifier when the outdoor unit power-on time does not exceed 30 s, determines that the indoor unit transmits the communication content, transfers to the communication processing process, and receives the communication content. If the communication start identifier is recognized after the outdoor unit is powered on for more than 30 seconds, the communication processing process of receiving and identifying the communication content is not performed.
  • the communication content is preferably characterized by a byte stream
  • the signal receiving circuit unit identifies the communication content characterized by the byte stream based on the received high and low level signals.
  • the signal transmission control circuit unit sequentially controls the on-off state of the switch circuit unit according to the set bit interval time, according to the switching circuit unit characterized by the bit in the byte stream; the signal receiving circuit unit according to the set bit interval time
  • the high and low level signals are sequentially acquired, and the bits in the byte stream are identified based on the correspondence between the known high and low level signals and the bits of the byte stream, thereby identifying the communication content represented by the byte stream.
  • the set bit interval time is preset, and both the indoor unit and the outdoor unit are known. For example, the set bit interval time is 120 ms.
  • the switch circuit unit For the communication start identifier, it is preferable to control the switch circuit unit to be turned on or off, and to continuously set the duration; for the signal receiving circuit unit in the outdoor unit communication circuit, it is received within the set duration.
  • a high level signal or a low level signal corresponding to the on or off state of the switching circuit unit.
  • the signal receiving circuit unit sequentially acquires high and low level signals according to the set bit interval time, which specifically includes:
  • a set bit interval if the signal receiving circuit unit receives a high level pulse signal greater than the set number, it is determined that the signal received during the set bit interval is a high level signal; otherwise, it is determined that The signal received during the set bit interval is a low level signal.
  • the communication content includes 1 byte, a total of 8 bits, and the bits "0" and "1" respectively indicate the disconnection and conduction of the switch circuit unit. .
  • the switch circuit unit When the switch circuit unit is turned off, the signal received by the signal receiving circuit unit is a low level signal, and when the switch circuit unit is turned on, the signal received by the signal receiving circuit unit is a high level signal.
  • the communication start identifier is defined as the switch circuit unit is continuously disconnected for 240 ms, and then the communication start identifier received by the signal receiving circuit unit is a low level signal that lasts for 240 ms. If the communication content to be sent by the indoor unit is "00000101", it means "low temperature cooling".
  • the signal transmission control circuit unit in the indoor unit communication circuit controls the switch circuit unit to be turned off for 240 ms to generate a communication start identifier; then, the switch circuit unit is controlled with 120 ms as the bit interval time. Disconnected for 120ms, disconnected for 120ms, disconnected for 120ms, disconnected for 120ms, disconnected for 120ms, turned on for 120ms, disconnected for 120ms, and turned on for 120ms.
  • the signal receiving circuit unit in the outdoor unit communication circuit detects and recognizes a low level signal that lasts for 240 ms within 30 s after the outdoor unit is powered on, determines that the communication starts, and sequentially receives a low level signal that lasts for 120 ms.
  • the signal receiving circuit unit recognizes that the received communication content is "00000101", indicating "low temperature cooling". Then, after receiving the communication content, the outdoor unit will enter the "low temperature cooling" operating state.
  • the communication start identifier duration and the communication content byte stream are reasonably selected.
  • the set interval time of each bit can ensure normal and accurate communication between the indoor unit and the outdoor unit.
  • the communication content only includes the communication content that is actually to be transmitted and related to the execution of the action.
  • the communication content includes not only the communication content that is actually to be transmitted, but also the content of the communication related to the execution of the action.
  • the transmission process and method of the communication content related to the execution of the action may be made to the transmission process and method of the communication content related to the execution of the action.
  • the air conditioner communication device in the above embodiment is applied to the air conditioner, and the communication method in the above embodiment is operated to realize communication between the indoor unit and the outdoor unit of the air conditioner without the communication line.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

一种空调器通讯装置、通讯方法及空调器，空调器包括具有室内机通讯电路（100）和室外机通讯电路（200）的通讯装置，方法包括：室内机通讯电路（100）中的信号发送控制电路单元（13）获取预发送的通讯内容，根据预发送的通讯内容控制室内机通讯电路（100）中的开关电路单元（12）的通断状态，基于开关电路单元（12）的通断状态传输预发送的通讯内容；室外机通讯电路（200）中的信号接收电路单元（22）接收并识别通讯内容。

Description

空调器通讯装置、通讯方法及空调器 技术领域
本发明属于空气调节技术领域，具体地说，是涉及空调器及其通讯装置和通讯方法。
 背景技术
目前，大部分变频空调器的室内机与室外机之间设置有通讯线，室内机与室外机通过通讯线进行通讯，通过通讯协调室内机与室外机的动作，完成空调器的运行控制。
如果室内机与室外机之间没有通讯线，室内机与室外机不能相互通讯，无法实现需要室内机、室外机间的通讯协调完成的运行控制，则空调器运行性能下降。
现有技术中，还没有发现对于未设置通讯线的室内机与室外机之间实现通讯、提升空调器运行性能的解决方案。
 技术问题
本发明的目的是提供一种空调器通讯装置及通讯方法，实现不存在通讯线的室内机与室外机之间的通讯。
 技术解决方案
为实现上述发明目的，本发明提供的空调器通讯装置采用下述技术方案予以实现：
一种空调器通讯装置，包括室内机通讯电路和室外机通讯电路，所述室内机通讯电路包括有室内供电电源端、连接在室内供电电源端与室外供电电源端之间电源连线上的开关电路单元、与所述开关电路单元连接的信号发送控制电路单元，所述开关电路单元在所述信号发送控制电路单元的控制下连通/断开所述电源连线；所述室外机通讯电路包括有所述室外供电电源端、与所述室外供电电源端连接的信号接收电路单元；所述信号发送控制电路单元根据预发送的通讯内容控制所述开关电路单元的通断状态，基于所述开关电路单元的通断状态将所述通讯内容传输至所述信号接收电路单元，所述信号接收电路单元接收并识别所述通讯内容。
如上所述的空调器通讯装置，所述开关电路单元包括有继电器单元，所述继电器单元的开关形成在所述电源连线上。
如上所述的空调器通讯装置，所述信号接收电路单元包括有光电耦合器，所述光电耦合器的发光端与所述室外供电电源端连接，所述光电耦合器的受光端输出与所述开关电路单元的通断状态对应的高低电平信号。
本发明还提供了一种空调器，包括室内机和室外机，所述空调器还包括有上述的空调器通讯装置。
为实现前述发明目的，本发明提供的空调器通讯方法采用下述技术方案来实现：
一种空调器通讯方法，所述空调器包括具有室内机通讯电路和室外机通讯电路的通讯装置，所述通讯方法包括：
所述室内机通讯电路中的信号发送控制电路单元获取预发送的通讯内容，根据所述预发送的通讯内容控制所述室内机通讯电路中的开关电路单元的通断状态，基于所述开关电路单元的通断状态传输所述预发送的通讯内容；
所述室外机通讯电路中的信号接收电路单元接收并识别所述通讯内容；
其中，所述室内机通讯电路包括有室内供电电源端、连接在室内供电电源端与室外供电电源端之间电源连线上的所述开关电路单元、与所述开关电路单元连接的所述信号发送控制电路单元，所述开关电路单元在所述信号发送控制电路单元的控制下连通/断开所述电源连线；所述室外机通讯电路包括有所述室外供电电源端、与所述室外供电电源端连接的所述信号接收电路单元。
如上所述的空调器通讯方法，所述信号发送控制电路单元在根据所述预发送的通讯内容控制所述室内机通讯电路中的开关电路单元的通断状态之前，先执行下述过程：所述信号发送控制电路单元根据已知的通讯开始标识控制所述开关电路单元的通断状态，基于所述开关电路单元的通断状态传输所述通讯开始标识；
所述信号接收电路单元在接收并识别出所述通讯开始标识后，转入通讯处理过程，执行接收并识别所述通讯内容的过程。
如上所述的空调器通讯方法，所述信号接收电路单元在空调器运行条件满足预设条件、且识别出所述通讯开始标识后，再转入所述通讯处理过程。
如上所述的空调器通讯方法，所述通讯内容由字节流表征；所述信号接收电路单元根据接收到的高低电平信号识别所述字节流表征的所述通讯内容。
如上所述的空调器通讯方法，所述信号发送控制电路单元按照设定位间隔时间、根据所述字节流中的位所表征的开关电路单元的通断依次控制所述开关电路单元的通断状态；所述信号接收电路单元按照所述设定位间隔时间依次获取高低电平信号，基于已知的高低电平信号与字节流的位的对应关系识别出所述字节流中的位，进而识别出所述字节流表征的所述通讯内容。
如上所述的空调器通讯方法，所述信号接收电路单元按照所述设定位间隔时间依次获取高低电平信号，具体包括：
在一个所述设定位间隔时间内，若所述信号接收电路单元接收到大于设定数量的高电平脉冲信号，确定在该设定位间隔时间内接收到的信号为高电平信号；否则，确定在该设定位间隔时间内接收到的信号为低电平信号。
 有益效果
与现有技术相比，本发明的优点和积极效果是：本发明提供的空调器通讯装置和通讯方法，通过在室内机通讯电路中设置信号发送控制电路单元和位于室内供电电源端与室外供电电源端之间的电源连线上的开关电路单元，在室外机通讯电路中设置信号接收电路单元，利用信号发送控制电路单元根据预发送的通讯内容控制开关电路单元的通断状态，基于开关电路单元的通断状态将通讯内容传输至信号接收电路单元，信号接收电路单元接收并识别通讯内容，从而，实现室内机与室外机之间的通讯。采用本发明提供的装置和方法，利用电源线及相应的电路单元实现室内机和室外机之间的通讯，实现了在无通讯线的情况下内、外机间的通讯，能够实现基于内、外机间的通讯才能完成的功能，提高了空调器的性能。并且，本发明提供的装置结构简单，方法实现有效、可靠，从而以较低的成本完成了复杂的空调器性能。
结合附图阅读本发明的具体实施方式后，本发明的其他特点和优点将变得更加清楚。
 附图说明
图1是基于本发明空调器通讯装置一个实施例的结构框图；
图2是基于图1结构框图的室内机通讯电路的一个具体电路原理图；
图3是基于图1结构框图的室外机通讯电路的一个具体电路原理图；
图4是基于本发明空调器通讯方法一个实施例的流程图。
 本发明的最佳实施方式
为了使本发明的目的、技术方案及优点更加清楚明白，以下将结合附图和实施例，对本发明作进一步详细说明。
请参见图1，该图所示为基于本发明空调器通讯装置一个实施例的结构框图。
如图1所示，该实施例的空调器通讯装置包括室内机通讯电路100和室外机通讯电路200。室内机通讯电路100包括有室内供电电源端11、开关电路单元12和信号发送控制电路单元13；室外机通讯电路200包括有室外供电电源端21和信号接收电路单元22。其中，室内机通讯电路100和室外机通讯电路200通过电源连线连接。
具体来说，开关电路单元12连接在室内机通讯电路100和室外机通讯电路200之间的电源连线上，信号发送控制电路单元13与开关电路单元12连接。信号发送控制电路单元13根据预发送的通讯内容控制开关电路单元12的通断状态，基于开关电路单元21的通断状态将通讯内容在电源连线上传输。室外机通讯电路200中，信号接收电路单元22与室外供电电源端21连接，信号接收电路单元22接收并识别电源连线上传输来的通讯内容。而且，开关电路单元12采用导通和断开时均具有一定滞后性的结构来实现，以保证通讯内容的准确传输。
更具体的通讯过程参见下面对通讯方法的描述。
利用该实施例提供的空调器通讯装置，利用信号发送控制电路单元13根据预发送的通讯内容控制开关电路单元12的通断状态，基于开关电路单元12的通断状态将通讯内容传输至信号接收电路单元22，信号接收电路单元22接收并识别通讯内容，从而，实现室内机与室外机之间的通讯。采用该实施例的通讯装置，利用电源线及相应的电路单元实现室内机和室外机之间的通讯，实现了在无通讯线的情况下内、外机间的通讯，能够实现基于内、外机间的通讯才能完成的功能，提高了空调器的性能。并且，该实施例的装置结构简单，从而以较低的成本完成了复杂的空调器性能。
图2示出了基于图1结构框图的室内机通讯电路的一个具体电路原理图，图3示出了基于图1结构框图的室外机通讯电路的一个具体电路原理图。
具体而言，在图2示出的电路原理图中，开关电路单元采用继电器单元来实现。具体的，AC_L1和AC_N1为来自室内供电电源端的电源连线，也是连接至室外供电电源端、为室外机供电的电源连线。继电器单元的开关K1形成在电源线上，具体来说是形成在电源线AC_L1。而且，继电器单元受信号发送控制电路单元（图中未示出）的控制，在信号发送控制电路单元的控制下，开关K1闭合或者断开。在开关K1闭合时，电源连线AC_L1连通，为室外机供电；开关K1断开时，电源连线AC_L1断开，不再为室外机供电。
在图3示出的电路原理图中，信号接收电路单元包括有光电耦合器U1，光电耦合器U1的发光端分别与室外供电电源端AC_L和AC_N连接，而U1的受光端输出与开关电路单元的通断状态对应的高低电平信号。
具体来说，作为光电耦合器U1发光端的二极管的负极通过电阻R1、电容C1及二极管D1连接至室外供电电源端AC_L，二极管的正极通过电阻R2-R10连接至室外供电电源端AC_N。作为光电耦合器U1受光端的三极管的发射极作为接收信号输出端RX，一方面通过下拉电阻R11接地GND，另一方面通过电阻R12输出高低电平信号；三极管的集电极连接电源VCC。接收信号输出端RX输出的信号由信号接收电路单元的其他电路部分接收，然后识别出通讯内容。
对于具有上述图2电路结构的室内机通讯电路和具体上述图3结构的室外机通讯电路所构成的空调器通讯装置，信号传输过程简述如下：
若K1断开，电源线AC_L1断开，室外供电电源端AC_L掉电，光电耦合器U1的受光端的三极管截止，接收信号输出端RX输出低电平信号。
若K1闭合，电源线AC_L1连通，室外供电电源端AC_L上电，光电耦合器U1的受光端的三极管导通，接收信号输出端RX输出高电平信号。
因此，接收信号输出端RX输出的高电平信号或者低电平信号与开关电路单元中的开关K1的闭合与导通是相对应的。基于此，在室内机端可以借助于对开关电路单元的控制发送与开关电路单元的通断状态相对应的通讯内容，从而，在室外机端，就可以通过对接收信号输出端RX所输出的电平信号识别出与开关电路单元的通断状态相对应的通讯内容，进而实现室内机与室外机之间的通讯。更具体的通讯过程参见下面对通讯方法的描述。
请参见图4，该图所示为基于本发明空调器通讯方法一个实施例的流程图。在该实施例中，空调器包括室内机通讯电路和室外机通讯电路，室内机通讯电路包括有室内供电电源端、连接在室内供电电源端与室外供电电源端之间电源连线上的开关电路单元、与开关电路单元连接的信号发送控制电路单元；室外机通讯电路包括有室外供电电源端、与室外供电电源端连接的信号接收电路单元。更具体的通讯电路请参见图1、图2及图3所示的结构。
基于上述的通讯电路，该实施例实现空调器通讯的方法包括下述过程：
步骤41：室内机通讯电路中的信号发送控制电路单元获取预发送的通讯内容，根据预发送的通讯内容控制室内机通讯电路中的开关电路单元的通断状态，基于开关电路单元的通断状态传输预发送的通讯内容。
预发送的通讯内容由室内机的主控电路发出，并传输至信号发送控制电路单元。当然，信号发送控制电路单元也可以是由室内机的主控电路来实现。通讯内容与开关电路单元的通断状态一一对应，信号发送控制电路单元根据要发送的通讯内容控制开关电路单元的通断状态，基于开关电路单元的通断状态在电源线上传输要发送的通讯内容。电源线上所传输的通讯内容将通过电源线传输到室外机。
步骤42：室外机通讯电路中的信号接收电路单元接收并识别通讯内容。
室内机通过电源线传输来的通讯内容反映到室外机通讯电路中，被室外机通讯电路中的信号接收电路单元所接收；室外机通讯电路将根据已知的接收信号与通讯内容的对应关系识别出所接收的信号对应的通讯内容，从而，实现室内机与室外机之间的通讯。基于室内机与室外机之间的通讯，室内机与室外机能够协同工作，完成基于内、外机间的通讯才能完成的功能，提高空调器的运行性能。
由于室内机通讯电路与室外机通讯电路之间不存在通讯线，仅通过电源线进行通讯内容的传输，为保证室外机通讯电路准确地接收通讯内容，信号发送控制电路单元在根据预发送的通讯内容控制室内机通讯电路中的开关电路单元的通断状态之前，先执行下述过程：信号发送控制电路单元根据已知的通讯开始标识控制开关电路单元的通断状态，基于开关电路单元的通断状态传输通讯开始标识。而室外机通讯电路中的信号接收电路单元在接收并识别出通讯开始标识后，再转入通讯处理过程，执行接收并识别通讯内容的过程。
另一方面，为进一步保证内、外机之间通过电源线进行通讯的准确性，避免遗漏或误接收通讯内容，信号接收电路单元仅在空调器运行条件满足预设条件、且识别出通讯开始标识后，再转入通讯处理过程。如果信号接收电路单元没有识别出通讯开始标识，或者虽然识别出通讯开始标识，但空调器运行条件不满足预设条件，也不执行通讯处理过程。作为一个优选实施例，进入通讯处理的预设条件是室外机上电时间不超过上电限定时间。譬如，上电限定时间为30s。也即，室内机与室外机之间的通讯仅发生在室外机上电时间不超过30S的上电限定时间内，在该时间之外，并不进行内、外机之间的通讯。室外机信号接收电路单元如果在室外机上电时间不超过30s时识别出通讯开始标识，确定室内机要传输通讯内容，转入通讯处理过程，接收通讯内容。如果是在室外机上电时间超过30s后识别出通讯开始标识，并不执行接收和识别通讯内容的通讯处理过程。
在该实施例中，通讯内容优选由字节流表征，而信号接收电路单元根据接收到的高低电平信号识别字节流所表征的通讯内容。并且，信号发送控制电路单元按照设定位间隔时间、根据字节流中的位所表征的开关电路单元的通断依次控制开关电路单元的通断状态；信号接收电路单元按照设定位间隔时间依次获取高低电平信号，基于已知的高低电平信号与字节流的位的对应关系识别出字节流中的位，进而识别出字节流表征的通讯内容。其中，设定位间隔时间是预先设置的，室内机和室外机均已知的，譬如，设定位间隔时间为120ms。
对于通讯开始标识，优选采用控制开关电路单元导通或断开、并持续设定持续时间；对于室外机通讯电路中的信号接收电路单元，则是在设定持续时间内接收到的均是与开关电路单元的导通或断开状态相对应的高电平信号或低电平信号。
考虑到信号传输过程中可能产生干扰，信号接收电路单元按照设定位间隔时间依次获取高低电平信号，具体包括：
在一个设定位间隔时间内，若信号接收电路单元接收到大于设定数量的高电平脉冲信号，确定在该设定位间隔时间内接收到的信号为高电平信号；否则，确定在该设定位间隔时间内接收到的信号为低电平信号。
举例来说，结合图2和图3示出的电路原理图，通讯内容包括有1个字节，共8位，位的“0”和“1”分别表示开关电路单元的断开和导通。开关电路单元断开时，信号接收电路单元接收到的信号为低电平信号，开关电路单元导通时，信号接收电路单元接收到的信号为高电平信号。通讯开始标识定义为开关电路单元持续240ms断开，那么，信号接收电路单元所接收到的通讯开始标识则是持续240ms的低电平信号。假如室内机要发送的通讯内容是“00000101”，表示的是“低温制冷”。那么，在室外机上电后的30s内，室内机通讯电路中的信号发送控制电路单元控制开关电路单元持续240ms断开，以产生通讯开始标识；然后，以120ms作为位间隔时间，控制开关电路单元断开120ms、断开120ms、断开120ms、断开120ms、断开120ms、导通120ms、断开120ms、导通120ms。相应的，室外机通讯电路中的信号接收电路单元在室外机上电后的30s内，如果检测并识别出持续240ms的低电平信号，确定通讯开始，依次接收到持续120ms的低电平信号、持续120ms的低电平信号、持续120ms的低电平信号、持续120ms的低电平信号、持续120ms的低电平信号、持续120ms的高电平信号、持续120ms的低电平信号、持续120ms的高电平信号。根据已知的高低电平信号与通讯内容的对应关系，信号接收电路单元识别出所接收到的通讯内容为“00000101”，表示的是“低温制冷”。那么，在接收完通讯内容后，室外机将进入“低温制冷”运行状态。
通过结合开关电路单元导通和断开动作的滞后时间、室外机掉电后信号接收电路单元及室外机主控单元的延时掉电时间，合理选择通讯开始标识时长及通讯内容字节流中每位的设定位间隔时间，能够保证室内机与室外机间的正常、准确通讯。
在上述举例中，通讯内容仅包括实际要传输、与动作执行相关的通讯内容。作为更优选的实施方式，通讯内容不仅包括有实际要传输的、与动作执行相关的通讯内容，还可以包括对和动作执行相关的通讯内容的校验内容。对于校验内容的传输，可以参考与动作执行相关的通讯内容的传输过程和方法。
上述实施例中的空调器通讯装置应用到空调器中，运行上述实施例中的通讯方法，实现空调器室内机与室外机在无通讯线的情况下的内、外机间的通讯。
以上实施例仅用以说明本发明的技术方案，而非对其进行限制；尽管参照前述实施例对本发明进行了详细的说明，对于本领域的普通技术人员来说，依然可以对前述实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或替换，并不使相应技术方案的本质脱离本发明所要求保护的技术方案的精神和范围。

Claims (10)

  1. 一种空调器通讯装置，包括室内机通讯电路和室外机通讯电路，其特征在于，所述室内机通讯电路包括有室内供电电源端、连接在室内供电电源端与室外供电电源端之间电源连线上的开关电路单元、与所述开关电路单元连接的信号发送控制电路单元，所述开关电路单元在所述信号发送控制电路单元的控制下连通/断开所述电源连线；所述室外机通讯电路包括有所述室外供电电源端、与所述室外供电电源端连接的信号接收电路单元；所述信号发送控制电路单元根据预发送的通讯内容控制所述开关电路单元的通断状态，基于所述开关电路单元的通断状态将所述通讯内容传输至所述信号接收电路单元，所述信号接收电路单元接收并识别所述通讯内容。
  2. 根据权利要求1所述的空调器通讯装置，其特征在于，所述开关电路单元包括有继电器单元，所述继电器单元的开关形成在所述电源连线上。
  3. 根据权利要求1或2所述的空调器通讯装置，其特征在于，所述信号接收电路单元包括有光电耦合器，所述光电耦合器的发光端与所述室外供电电源端连接，所述光电耦合器的受光端输出与所述开关电路单元的通断状态对应的高低电平信号。
  4. 一种空调器，包括室内机和室外机，其特征在于，所述空调器还包括有上述权利要求1至3中任一项所述的通讯装置。
  5. 一种空调器通讯方法，所述空调器包括具有室内机通讯电路和室外机通讯电路的通讯装置，其特征在于，所述通讯方法包括：
    所述室内机通讯电路中的信号发送控制电路单元获取预发送的通讯内容，根据所述预发送的通讯内容控制所述室内机通讯电路中的开关电路单元的通断状态，基于所述开关电路单元的通断状态传输所述预发送的通讯内容；
    所述室外机通讯电路中的信号接收电路单元接收并识别所述通讯内容；
    其中，所述室内机通讯电路包括有室内供电电源端、连接在室内供电电源端与室外供电电源端之间电源连线上的所述开关电路单元、与所述开关电路单元连接的所述信号发送控制电路单元，所述开关电路单元在所述信号发送控制电路单元的控制下连通/断开所述电源连线；所述室外机通讯电路包括有所述室外供电电源端、与所述室外供电电源端连接的所述信号接收电路单元。
  6. 根据权利要求5所述的空调器通讯方法，其特征在于，所述信号发送控制电路单元在根据所述预发送的通讯内容控制所述室内机通讯电路中的开关电路单元的通断状态之前，先执行下述过程：所述信号发送控制电路单元根据已知的通讯开始标识控制所述开关电路单元的通断状态，基于所述开关电路单元的通断状态传输所述通讯开始标识；
    所述信号接收电路单元在接收并识别出所述通讯开始标识后，转入通讯处理过程，执行接收并识别所述通讯内容的过程。
  7. 根据权利要求6所述的空调器通讯方法，其特征在于，所述信号接收电路单元在空调器运行条件满足预设条件、且识别出所述通讯开始标识后，再转入所述通讯处理过程。
  8. 根据权利要求5至7中任一项所述的空调器通讯方法，其特征在于，所述通讯内容由字节流表征；所述信号接收电路单元根据接收到的高低电平信号识别所述字节流表征的所述通讯内容。
  9. 根据权利要求8所述的空调器通讯方法，其特征在于，所述信号发送控制电路单元按照设定位间隔时间、根据所述字节流中的位所表征的开关电路单元的通断依次控制所述开关电路单元的通断状态；所述信号接收电路单元按照所述设定位间隔时间依次获取高低电平信号，基于已知的高低电平信号与字节流的位的对应关系识别出所述字节流中的位，进而识别出所述字节流表征的所述通讯内容。
  10. 根据权利要求9所述的空调器通讯方法，其特征在于，所述信号接收电路单元按照所述设定位间隔时间依次获取高低电平信号，具体包括：
    在一个所述设定位间隔时间内，若所述信号接收电路单元接收到大于设定数量的高电平脉冲信号，确定在该设定位间隔时间内接收到的信号为高电平信号；否则，确定在该设定位间隔时间内接收到的信号为低电平信号。
PCT/CN2018/104917 2017-12-26 2018-09-11 空调器通讯装置、通讯方法及空调器 WO2019128309A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201711427499.4 2017-12-26
CN201711427499.4A CN108332357B (zh) 2017-12-26 2017-12-26 空调器通讯装置、通讯方法及空调器

Publications (1)

Publication Number Publication Date
WO2019128309A1 true WO2019128309A1 (zh) 2019-07-04

Family

ID=62923460

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2018/104917 WO2019128309A1 (zh) 2017-12-26 2018-09-11 空调器通讯装置、通讯方法及空调器

Country Status (2)

Country Link
CN (1) CN108332357B (zh)
WO (1) WO2019128309A1 (zh)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108332357B (zh) * 2017-12-26 2020-04-24 青岛海尔空调器有限总公司 空调器通讯装置、通讯方法及空调器
CN109780638B (zh) * 2019-01-03 2021-01-12 广东志高暖通设备股份有限公司 通讯板底座、通讯板及空调室外机

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07243691A (ja) * 1994-03-04 1995-09-19 Hitachi Ltd 空気調和機
CN202109612U (zh) * 2011-06-13 2012-01-11 珠海格力电器股份有限公司 空调室外机待机功耗控制系统
CN108332357A (zh) * 2017-12-26 2018-07-27 青岛海尔空调器有限总公司 空调器通讯装置、通讯方法及空调器

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06147604A (ja) * 1992-11-06 1994-05-27 Matsushita Seiko Co Ltd 分離型空気調和機の電源供給装置
CN201740163U (zh) * 2010-07-14 2011-02-09 宁波奥克斯空调有限公司 一种内外机通信控制方式的定频空调器
CN104345729B (zh) * 2013-08-07 2017-03-29 海尔集团公司 一种基于电流环通讯回路的电源控制电路
CN206073362U (zh) * 2016-07-05 2017-04-05 广东美的制冷设备有限公司 一种空调器室内外机的通信装置
CN106685712B (zh) * 2016-12-26 2018-12-21 珠海格力电器股份有限公司 用于零火线通讯设备的故障判定装置、判定采集电路及方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07243691A (ja) * 1994-03-04 1995-09-19 Hitachi Ltd 空気調和機
CN202109612U (zh) * 2011-06-13 2012-01-11 珠海格力电器股份有限公司 空调室外机待机功耗控制系统
CN108332357A (zh) * 2017-12-26 2018-07-27 青岛海尔空调器有限总公司 空调器通讯装置、通讯方法及空调器

Also Published As

Publication number Publication date
CN108332357A (zh) 2018-07-27
CN108332357B (zh) 2020-04-24

Similar Documents

Publication Publication Date Title
US7841542B1 (en) System for supplying communications and power to a thermostat over a two-wire system
WO2019128309A1 (zh) 空调器通讯装置、通讯方法及空调器
RU2013111523A (ru) Приоритизированная передача телеграмм данных
CN102538137B (zh) 一种空调强电通信的抗干扰电路及方法
WO2019095835A1 (zh) 识别空调电路的方法、装置及空调
CN106909081A (zh) 基于家电设备的扩展平台和家电设备
CN104596049A (zh) 电流环通信电路和空调器
CN106545955B (zh) 一种通讯中继装置、方法及空调
US9959231B2 (en) Data bus coupler and method of operation
CN108759021B (zh) 空调压缩机的频率控制方法
WO2016116988A1 (ja) 通信装置、負荷制御システム、負荷制御装置
TWM580840U (zh) Electrical control device with infrared receiving unit and radio frequency unit
CN206639380U (zh) 万用遥控接点控制器
CN112579490A (zh) 一种可编程电子积木连接总线
WO2010121481A1 (zh) 使电子系统复位的方法、电路及其装置
CN220711484U (zh) 抗干扰单线双向通讯电路
CN112460748B (zh) 一种内外机通讯装置、方法和直流供电变频空调
JP2020153617A (ja) 空気調和機
CN214670183U (zh) 一种零火线通讯装置和电器设备
TWI739140B (zh) 供電系統及其受電裝置
JPS5873250A (ja) 空気調和機の信号伝達方式
CN110233783A (zh) 一种基于终端组定位的电器控制系统
KR20190066575A (ko) 제어 장치, 제어 장치의 제어 방법 및 프로그램
CN216700396U (zh) 极性自动适配解码控制板及灯光系统
TWI768881B (zh) 邊帶信號調整系統及其方法和儲存裝置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18896562

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 18896562

Country of ref document: EP

Kind code of ref document: A1