WO2014008675A1 - 一种无线收发模组及其逆变系统 - Google Patents
一种无线收发模组及其逆变系统 Download PDFInfo
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- WO2014008675A1 WO2014008675A1 PCT/CN2012/078745 CN2012078745W WO2014008675A1 WO 2014008675 A1 WO2014008675 A1 WO 2014008675A1 CN 2012078745 W CN2012078745 W CN 2012078745W WO 2014008675 A1 WO2014008675 A1 WO 2014008675A1
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
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- the present invention relates to the field of inverter systems, and in particular, to a wireless transceiver module and an inverter system having a micro power consumption display device and an inverter host. Background technique
- the inverter system of the prior art includes an inverter and a display device, and connects the inverter host and the display device by using a signal line for serial communication, so that the display device can be remotely installed, which is convenient for the user to observe and use, and the display device is remotely
- the LCD display panel is installed, but although the device can remotely install the LCD display and the control panel, the control panel and the inverter host must also have a wire connection, which is not very convenient in practical use. Summary of the invention
- an object of the present invention is to provide a micro power consumption wireless display device, which disconnects a connection line on the basis of the original device, and in the case where the original LCD display panel and the inverter host are not changed, the original connection is made.
- the wireless transmitting and receiving module is respectively connected to the interface, and the wireless connection mode can also realize remote display and micro power sleep control, and is convenient to use.
- a wireless transceiver module for use in a micro power display device and inverse In the inverter system, the inverter and the display device communicate with each other through the wireless transceiver module, wherein the wireless transceiver module comprises a first wireless transceiver module and a second wireless transceiver module;
- the first wireless transceiver module includes at least:
- a first connecting circuit connected to the control interface of the inverter, receiving an operating voltage sent by the inverter through an operating voltage connection line, the first connecting circuit further comprising a trigger signal line to trigger the inverter Opening and closing;
- a first microprocessor connected to the first connection circuit through a plurality of data lines, the plurality of data lines including at least a chip select signal line, a write signal line, and a serial data line;
- a first electrical control switch circuit is respectively connected to the working voltage connection line and the trigger signal line, and is connected to the first microprocessor;
- a voltage dividing circuit one end of which is grounded, and the other end is respectively connected to the first microprocessor and the working voltage connection line;
- the step-down circuit has one end connected to the working voltage connection line and the other end being grounded; the first wireless transmitting and receiving module is connected to the first microprocessor; the second wireless transceiver module comprises at least:
- a second microprocessor connected to the second connection circuit through a plurality of data lines, the plurality of data lines including at least a chip select signal line, a write signal line, a trigger signal line, and a serial data line;
- boost regulator circuit and a second electrical control switch circuit, the second connection circuit Connecting the boost regulator circuit and the second electrical control switch circuit in sequence to be connected to the second microprocessor;
- the second wireless transmitting and receiving module is connected to the second microprocessor to communicate with the first wireless transmitting and receiving module.
- the step-down circuit comprises a CMOS transistor, an electrolytic capacitor and a light emitting diode, the anode of the LED is connected to the working voltage connection line, and the cathode is connected to the drain of the CMOS transistor, the source of the CMOS transistor Connect a working voltage and ground it through the electrolytic capacitor.
- the gate of the CMOS transistor is grounded through a Zener diode, and a first resistor is connected in series between the gate and the drain of the CMOS transistor.
- the CMOS transistor is an N-channel MOSFET enhanced field effect transistor.
- the first electrical control switch circuit includes a first triode, a second triode, a third resistor, a fifth resistor, a sixth resistor, and a seventh resistor, the first triode
- the emitter is connected to the working voltage connection line
- the collector of the first transistor is connected to the trigger signal line
- the base of the first transistor passes through the set of the fifth resistor and the second transistor
- An electrode is connected
- the third resistor is connected in series between the emitter and the base of the first transistor
- the base of the second transistor is connected to the first microprocessor through the sixth resistor
- the first The base of the two transistors is grounded through the seventh resistor
- the emitter of the second transistor is grounded.
- the first triode is a PNP type triode
- the second triode is an NPN type triode.
- the wireless transceiver module wherein the voltage dividing circuit comprises a second resistor and a fourth resistor, one end of the second resistor is connected to the working voltage connection line, and the other end is grounded through the fourth resistor, the first microprocessor is connected Between the second resistor and the fourth resistor.
- the second electrical control switch circuit includes a third tertiary transistor, a fourth triode, an eighth resistor, a ninth resistor, a tenth resistor, and an eleventh resistor, the third three pole a collector of the tube is connected to the boost regulator circuit, a base of the third transistor is connected to a collector of the fourth transistor through the ninth resistor, and an emitter of the third transistor a second microprocessor is connected, the eighth resistor is connected in series between the emitter and the base of the third transistor, and the base of the fourth transistor passes the eleventh resistor and the second microprocessor Connected to the base of the fourth triode through the tenth resistor, the emitter of the fourth triode is grounded; in addition, the emitter of the third triode is connected to a battery pack, the battery pack The positive electrode is connected to the second connecting circuit through a first Schottky diode, and the negative electrode is grounded.
- the trigger signal line is connected to the second microprocessor through a twelfth resistor.
- the third triode is a PNP type triode
- the fourth triode is an NPN type triode.
- the boost regulator circuit comprises a boost set Forming a circuit, a second Schottky diode, a third Schottky diode, and an inductor, wherein the second Schottky diode negative electrode is connected to the second connecting circuit, and the positive electrode is sequentially connected to the boosting integrated circuit, the inductor, and the first A collector connection of the triode, the third Schottky diode being connected in parallel with the ungrounded ends of the boosting integrated circuit.
- the boost regulator circuit further includes a first capacitor and a second capacitor, one end of the first capacitor is connected to an output end of the boosting integrated circuit, and the other end is grounded, and the second capacitor is One end is connected to the collector of the third transistor, and the other end is grounded.
- the wireless transceiver module further includes a charging controller and a solar panel, the solar panel is connected to the charging controller, and an output end of the charging controller is connected to the third transistor The output of the charge controller is also grounded through a third capacitor.
- the present invention also discloses an inverter system including an inverter, a display device, and the wireless transceiver module according to any of the above.
- FIG. 1 is a block diagram showing the structure of a first wireless receiving module of a wireless I module and its inverter system according to an embodiment of the present invention.
- FIG. 2 is a circuit diagram of a first wireless receiving module of a wireless I module and its inverter system according to an embodiment of the present invention
- FIG. 3 is a block diagram showing the structure of a second wireless receiving module of a wireless I module and its inverter system according to an embodiment of the present invention.
- FIG. 4 is a circuit diagram of a second wireless receiving module of a wireless I module and its inverter system in accordance with an embodiment of the present invention. detailed description
- the wireless transceiver module in the embodiment of the present invention is applied to an inverter system having a micro power consumption display device and an inverter, wherein the inverter and the display device communicate with each other through a wireless transceiver module, and the wireless transceiver module includes A wireless transceiver module and a second wireless transceiver module.
- the first wireless transceiver module includes at least a first connection circuit J1, a first microprocessor IC1, a first electrical control switch circuit, a voltage dividing circuit, a step-down circuit, and a first wireless transmission.
- the first connection circuit J1 is connected to the control interface of the inverter, and receives the working voltage sent by the inverter through an operating voltage connection line VCC.
- the first connection circuit J1 further includes a trigger signal line SW to trigger the inverter. Opening and closing.
- the step-down circuit includes a CMOS transistor M1, an electrolytic capacitor E1, and a light-emitting diode LED1.
- the positive electrode of the LED1 is connected to the working voltage connection line VCC, and the negative electrode is connected.
- the drain of the CMOS transistor M1 is connected, the source of the CMOS transistor M1 is connected to an operating voltage VDD, and grounded through the electrolytic capacitor E1.
- the gate of the CMOS transistor M1 is grounded through a Zener diode Z1, and a first resistor R1 is connected in series between the gate and the drain of the CMOS transistor M1.
- CMOS transistor M1 is an N-channel MOSFET enhanced field effect transistor.
- the first microprocessor IC1 is connected to the first connection circuit J1 through a plurality of data lines, and the plurality of data lines include at least a chip selection signal line CS, a write signal line WR, and a serial data line DATA.
- the first electrically controlled switch circuit is coupled to the operating voltage connection line VCC, the trigger signal line SW, and to the first microprocessor IC1.
- the voltage dividing circuit is grounded at one end, and the other end is connected to the first microprocessor IC1 and the working voltage connection line VCC, and one end of the step-down circuit is connected to the working voltage connection line VCC, and the other end is grounded.
- the first wireless transmit receive module is coupled to the first microprocessor IC1. As shown in FIG.
- the first electrically controlled switch circuit includes a first transistor P1, a second transistor N1, a third resistor R3, a fifth resistor R5, a sixth resistor R6, and a seventh resistor R7,
- the emitter of a triode PI is connected to the working voltage connection line VCC
- the collector of the first triode P1 is connected to the trigger signal line SW
- the base of the first triode P1 passes through the fifth resistor R5 and the second three
- the collector of the pole tube N1 is connected
- the third resistor R3 is connected in series between the emitter and the base of the first transistor P1
- the base of the second transistor N1 is passed through the sixth resistor R6 and the first microprocessor.
- IC1 is connected, the base of the second transistor N1 is grounded through the seventh resistor R7, and the emitter of the second transistor N1 is grounded.
- the first triode P1 is a PNP type triode
- the second triode N1 is an NPN type triode.
- the type of the triode is matched with the above connection method to realize the opening and closing control of the first electric control switch circuit.
- the voltage dividing circuit includes a second resistor R2 and a fourth resistor R4.
- One end of the second resistor R2 is connected to the working voltage connection line VCC, and the other end is grounded through the fourth resistor R4.
- the first microprocessor IC1 is connected. Between the second resistor R2 and the fourth resistor R4.
- the first connection circuit J1 is connected to the inverter control interface, where VCC comes from the main working power supply of the inverter, usually +12V (+24V, etc.).
- SW is the inverter switch line. When SW is low, the inverter is completely turned off; when SW is high: 1) The inverter is working normally, and the working state is passed through three serial communication lines CS, WR And DATA is sent to the first microprocessor IC1; 2) If the inverter is not loaded, it will automatically enter sleep, three communication lines No information is transmitted.
- the first microprocessor IC1 is always powered, but when the first microprocessor IC1 is in a shutdown state, the first wireless transmitting and receiving module WX1 is turned off, the whole machine is in a micro power state, and the LED 1 is turned off.
- the first microprocessor IC1 wakes up once every certain time during shutdown and sleep, and asks whether the LCD display module is powered on by the first wireless transmitting and receiving module WX1, and if it is not in the sleep state, the power is turned on, the first microprocessor IC1 sets PIN8 high, second transistor N1 and first transistor P1 are turned on, SW is set high, the inverter is turned on, and the first microprocessor IC1 receives inverters from CS, WR and DATA.
- the working status information is simultaneously sent to the display device, that is, the LCD display module, through the first wireless transmitting and receiving module WX1, and the response is received to confirm the power-on state, and if there is no response, the power is returned to the power-off state.
- the inverter is in a sleep state and the first microprocessor IC1 does not receive information from the inverter, IC1 also goes to sleep. However, it wakes up once every certain time to check CS, WR and DATA information, and sends sleep information to the LCD module, and receives the response to confirm the power-on state, and then enters sleep again, which can minimize the reverse state of the boot state.
- the second wireless transceiver module includes at least a second connection circuit J2, a second microprocessor IC2, a boost regulator circuit, a second electrical control switch circuit, and a second wireless transmit receive module XW2. .
- the second connection circuit J2 is connected to the display device, and the internal circuit of the display device is constructed in the prior art and should be familiar to those skilled in the art.
- the second microprocessor IC2 is connected to the second connection circuit through a plurality of data lines, and the plurality of data lines include at least a chip select signal line CS, a write signal line WR, a trigger signal line SW, and a serial data line DATA.
- the boost regulator circuit and the second electrical control switch circuit, the second connection circuit is connected to the boost regulator circuit and the second electrical control switch circuit in sequence, and is connected to the second microprocessor IC2.
- the second wireless transmitting and receiving module XW2 is connected to the second microprocessor IC2 to communicate with the first wireless transmitting and receiving module WX1, and the second wireless transmitting and receiving module is a simple functional module that can be wirelessly transmitted and received in the market. It is readily available to the skilled person and facilitates the implementation of the present invention.
- the second electrically controlled switch circuit includes a third tertiary tube P2, a fourth triode N2, an eighth resistor R8, a ninth resistor R9, a tenth resistor R10, and an eleventh resistor.
- Rl l the collector of the third transistor P2 is connected to the boost regulator circuit, and the base of the third transistor P2 is connected to the collector of the fourth transistor N2 through the ninth resistor R9, the third three pole
- the emitter of the tube P2 is connected to the second microprocessor IC2, the eighth resistor R8 is connected in series between the emitter and the base of the third transistor P2, and the base of the fourth transistor N2 is passed through the eleventh resistor.
- R11 is connected to the second microprocessor IC2, the base of the fourth transistor N2 is grounded through the tenth resistor R10, and the emitter of the fourth transistor N2 is grounded.
- the emitter of the third transistor P2 is connected to a battery pack BT1, and the anode of the battery pack BT1 is connected to the second connection circuit through the first Schottky diode D1, and the cathode is grounded.
- the trigger signal line SW passes through the twelfth resistor R12 and the second microprocessor IC2 connection.
- the third transistor P2 is a PNP type transistor
- the fourth transistor N2 is an NPN type transistor
- the boost regulator circuit includes a boost integrated circuit VR, a second Schottky diode D2, a third Schottky diode D3, and an inductor L.
- the second Schottky diode D2 has a negative pole connected to the second connection circuit J2, and the positive poles are sequentially connected.
- the boosting integrated circuit VR and the inductor L are connected to the collector of the third transistor P2, and the third Schottky diode D3 is connected in parallel with the input and output terminals of the boosting integrated circuit VR, that is, the non-grounded ends.
- the boost regulator circuit further includes a first capacitor C1 and a second capacitor C2.
- One end of the first capacitor C1 is connected to the output end of the boost integrated circuit VR, and the other end is grounded, and one end of the second capacitor C2 and the third transistor The collector of P2 is connected and the other end is grounded.
- the wireless transceiver module further includes a charging controller CC1 and a solar panel BT2.
- the solar panel BT2 is connected to the charging controller CC1, and the output end of the charging controller CC1 is connected to the emitter of the third transistor P2, and the charging controller CC1 The output is also grounded through a third capacitor C3.
- the second microprocessor IC2 input pin PIN14 is low, and the second microprocessor IC2 is notified to be turned off, and the IC2 output pin 11 is low.
- the second wireless transmitting and receiving module XW2 is turned off, and then the user enters a shutdown sleep state.
- the only wake-up event of IC2 is that its level on PIN14 goes from low to high.
- Battery loss is only IC2
- the sleep loss current which is negligible to the battery, when the display device starts to supply power (ie, the switch on the LCD display panel is closed, J2's PIN6 and PIN2 are connected), and the battery pack BT1 voltage passes through Figure 4.
- Dl via R12 to IC2 PIN14, this signal is used to wake up IC2 of Figure 2, IC2 enters the working state, IC2 sets PIN11 high, N2 turns on, P1 turns on, battery pack BT1 voltage passes boost circuit (VR)
- a stable voltage (5V) is supplied to the display device circuit. If there is no boost circuit as shown in the figure, since the voltage of the battery pack BT1 is less than 5V and unstable, the power supply of the display circuit will be insufficient.
- IC2 After receiving the status information sent by the inverter, IC2 initiates serial information transmission of PIN5, PIN6, and PIN7, and notifies the display circuit to start and display related information.
- This state is the display state, the display state is only maintained for a period of time (such as 10 seconds), then IC2 enters the sleep state, WR is not sent, the display circuit is automatically turned off, and the battery is in the micro power state.
- the wake-up event is S1 in Figure 4 (inquiry button).
- S1 triggers to wake up IC2
- IC2 repeats the power-on display process, IC2 in power-on sleep wakes up at regular intervals to receive the information sent by the inverter. If the inverter is not working properly or needs special wake-up, IC2 starts to display or alarm, otherwise it will continue to sleep, so that the display circuit has only a small power consumption.
- the invention also discloses an inverter system, which comprises an inverter, a display device and the above-mentioned wireless transceiver module, wherein only the wireless transceiver module is different from the prior art, and the specific line structure of other parts is not drawn, Field technician
- the configuration of the other parts than the above-described wireless transceiver module can be grasped in conjunction with the prior art, and details are not described herein.
- the specific embodiments of the present invention have been described in detail above, but the invention is not limited to the specific embodiments described above. Any equivalent modifications and substitutions are also within the scope of the invention for those skilled in the art. Accordingly, equivalent changes and modifications may be made without departing from the spirit and scope of the invention.
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Description
一种无线收发模组及其逆变系统 技术领域
本发明涉及逆变系统技术领域, 尤其涉及一种无线收发 模组及具有一微功耗显示装置和一逆变主机的逆变系统。 背景技术
现有技术的逆变系统包括逆变器和显示装置, 利用用于 串行通讯的信号线连接逆变主机及显示装置, 使得显示装置 可远程安装, 便于用户观察及使用, 显示装置为可远程安装 的 LCD显示面板, 但该装置虽然能远程安装 LCD显示和控制 面板, 但控制面板和逆变主机还须有导线连接, 在实际使用 中不是很方便。 发明内容
针对上述存在的问题, 本发明的目的是提供一种微功耗 无线显示装置, 在原有装置的基础上把连接线断开, 在原有 LCD 显示面板和逆变主机不作改变的情况下, 在原连接接口 上分别连接无线发射接收模块, 这种无线连接方式同样可以 实现远程显示和微功耗休眠控制, 使用方便。
本发明的目的是通过下述技术方案实现的:
一种无线收发模组, 应用于具有一微功耗显示装置和逆
变器的逆变系统中, 该逆变器与该显示装置通过该无线收发 模组进行相互通信, 其中, 该无线收发模组包括第一无线收 发模组和第二无线收发模组;
该第一无线收发模组至少包括:
第一连接电路, 连接于该逆变器的控制接口, 通过一工 作电压连接线接收由该逆变器送来的工作电压, 该第一连接 电路还包括一触发信号线以触发该逆变器的开闭;
第一微处理器, 通过若干数据线与第一连接电路相连, 该若干数据线中至少包括片选信号线、 写信号线和串行数据 线;
第一电控制开关电路, 分别与该工作电压连接线、 触发 信号线连接, 并与该第一微处理器相连;
分压电路, 一端接地, 另一端分别与该第一微处理器以 及该工作电压连接线相连;
降压电路,一端与该工作电压连接线连接,另一端接地; 第一无线发射接收模块, 与该第一微处理器连接; 该第二无线收发模组至少包括:
第二连接电路, 连接于该显示装置;
第二微处理器, 通过若干数据线与第二连接电路相连, 该若干数据线中至少包括片选信号线、 写信号线、 触发信号 线和串行数据线;
升压稳压电路和第二电控制开关电路, 该第二连接电路
依次连接该升压稳压电路、 该第二电控制开关电路后与该第 二微处理器连通;
第二无线发射接收模块, 与该第二微处理器连接, 实现 与该第一无线发射接收模块相互通信。
上述无线收发模组, 其中, 该降压电路包括 CMOS 晶体 管、 电解电容和发光二极管, 该发光二极管正极与该工作电 压连接线连接, 负极与该 CMOS晶体管的漏极连接, 该 CMOS 晶体管的源极接一工作电压, 并通过该电解电容接地。
上述无线收发模组, 其中, 该 CMOS 晶体管的栅极通过 一稳压二极管接地, 该 CMOS 晶体管的栅极与漏极之间串接 有第一电阻。
上述无线收发模组, 其中, 该 CMOS晶体管为 N沟道 M0S 增强型场效应晶体管。
上述无线收发模组, 其中, 该第一电控制开关电路包括 第一三极管、 第二三极管、 第三电阻、 第五电阻、 第六电阻 和第七电阻, 该第一三极管的发射极与该工作电压连接线相 连, 该第一三极管的集电极与该触发信号线连接, 该第一三 极管的基极通过该第五电阻与该第二三极管的集电极相连, 该第三电阻串接于该第一三极管的发射极与基极之间, 该第 二三极管的基极通过该第六电阻与该第一微处理器连接, 该 第二三极管的基极通过该第七电阻接地, 该第二三极管的发 射极接地。
上述无线收发模组, 其中, 该第一三极管为 PNP型三极 管, 该第二三极管为 NPN型三极管。
上述无线收发模组, 其中, 该分压电路包括第二电阻和 第四电阻, 该第二电阻的一端连接该工作电压连接线, 另一 端通过该第四电阻接地, 该第一微处理器连接于该第二电阻 和第四电阻之间。
上述无线收发模组, 其中, 该第二电控制开关电路包括 第三三级管、 第四三极管、 第八电阻、 第九电阻、 第十电阻 和第十一电阻, 该第三三极管的集电极与该升压稳压电路连 接, 该第三三极管的基极通过该第九电阻与该第四三极管的 集电极连接, 该第三三极管的发射极与该第二微处理器连 接, 该第八电阻串接于该第三三极管的发射极与基极之间, 该第四三极管的基极通过该第十一电阻与该第二微处理器 连接, 该第四三极管的基极通过该第十电阻接地, 该第四三 极管的发射极接地; 另外, 该第三三极管的发射极连接一电 池组, 该电池组的正极通过第一肖特基二极管与该第二连接 电路相连, 负极接地。
上述无线收发模组, 其中, 该触发信号线通过第十二电 阻与该第二微处理器连接。
上述无线收发模组, 其中, 该第三三极管为 PNP型三极 管, 该第四三极管为 NPN型三极管。
上述无线收发模组, 其中, 该升压稳压电路包括升压集
成电路、 第二肖特基二极管、 第三肖特基二极管和电感, 该 第二肖特基二极管负极与该第二连接电路相连, 正极依次连 接该升压集成电路、 该电感后与该第三三极管的集电极连 接, 该第三肖特基二极管与该升压集成电路非接地的两端并 联。
上述无线收发模组, 其中, 该升压稳压电路还包括第一 电容和第二电容, 该第一电容的一端与该升压集成电路的输 出端连接, 另一端接地, 该第二电容的一端与该第三三极管 的集电极连接, 另一端接地。
上述无线收发模组, 其中, 该无线收发模组还包括充电 控制器和太阳能电池板, 该太阳能电池板与该充电控制器连 接, 该充电控制器的输出端连接该第三三极管的发射极, 该 充电控制器的输出端还通过第三电容接地。
本发明还公开了一种逆变系统, 其包括逆变器、 显示装 置和如上述任意一项所述的无线收发模组。
与已有技术相比, 本发明的有益效果在于:
( 1 ) 在原有装置的基础上把连接线断开, 在原有 LCD 显示 面板和逆变主机不作改变的情况下, 在原连接接口上分别连 接无线发射接收模块, 这种无线连接方式同样可以实现远程 显示和微功耗休眠控制;
( 2 ) 同时由于显示面板通常置于车前台, 结合显示面板的 智能微功耗控制, 利用小型太阳能电池板为显示面板充电,
省去了换电池或充电的麻烦。 附图说明
图 1是依据本发明 具体实施例的, 无线 I 模组及其 逆变系统的第一无线收: 模组的结构示意框图
图 2是依据本发明 具体实施例的, 无线 I 模组及其 逆变系统的第一无线收: 模组的电路结构图;
图 3是依据本发明 具体实施例的, 无线 I 模组及其 逆变系统的第二无线收: 模组的结构示意框图
图 4是依据本发明 具体实施例的, 无线 I 模组及其 逆变系统的第二无线收: 模组的电路结构图。 具体实施方式
下面结合原理图和具体操作实施例对本发明作进一步 说明。
本发明实施例中的无线收发模组应用于具有一微功耗 显示装置和逆变器的逆变系统中, 逆变器与显示装置通过无 线收发模组进行相互通信, 无线收发模组包括第一无线收发 模组和第二无线收发模组。
请参看图 1和图 2所示, 第一无线收发模组至少包括第 一连接电路 Jl、 第一微处理器 IC1、 第一电控制开关电路、 分压电路、 降压电路和第一无线发射接收模块 WX1。
第一连接电路 Jl 连接于逆变器的控制接口, 通过一工 作电压连接线 VCC接收由逆变器送来的工作电压, 第一连接 电路 J1还包括一触发信号线 SW以触发逆变器的开闭。
继续参看图 1和图 2所示, 在本发明较佳实施例中, 降 压电路包括 CMOS晶体管 Ml、电解电容 E 1和发光二极管 LED1, 发光二极管 LED1正极与工作电压连接线 VCC连接, 负极与 CMOS晶体管 Ml 的漏极连接, CMOS晶体管 Ml 的源极接一工 作电压 VDD, 并通过电解电容 E1接地。 CMOS晶体管 Ml的栅 极通过一稳压二极管 Z1接地, CMOS晶体管 Ml的栅极与漏极 之间串接有第一电阻 Rl。
在本发明的较佳实施例中, CMOS晶体管 Ml为 N沟道 M0S 增强型场效应晶体管。
第一微处理器 IC1 通过若干数据线与第一连接电路 J1 相连, 若干数据线中至少包括片选信号线 CS、 写信号线 WR 和串行数据线 DATA。
继续参看图 1和图 2所示, 第一电控制开关电路分别与 工作电压连接线 VCC、 触发信号线 SW连接, 并与第一微处理 器 IC1相连。
分压电路一端接地, 另一端分别与第一微处理器 IC1以 及工作电压连接线 VCC相连, 降压电路一端与工作电压连接 线 VCC连接, 另一端接地。 第一无线发射接收模块与第一微 处理器 IC1连接。
如图 2所示出的, 第一电控制开关电路包括第一三极管 Pl、 第二三极管 Nl、 第三电阻 R3、 第五电阻 R5、 第六电阻 R6和第七电阻 R7, 第一三极管 PI的发射极与工作电压连接 线 VCC相连,第一三极管 P1的集电极与触发信号线 SW连接, 第一三极管 P1 的基极通过第五电阻 R5与第二三极管 N1 的 集电极相连, 第三电阻 R3串接于第一三极管 P1的发射极与 基极之间, 第二三极管 N1的基极通过第六电阻 R6与第一微 处理器 IC1连接, 第二三极管 N1的基极通过第七电阻 R7接 地, 第二三极管 N1的发射极接地。
本发明较佳实施例中, 第一三极管 P1为 PNP型三极管, 第二三极管 N1为 NPN型三极管。 三极管的型号配合上述连 接方式以实现第一电控制开关电路的开闭控制。
继续参看图 2所示, 分压电路包括第二电阻 R2和第四 电阻 R4, 第二电阻 R2 的一端连接工作电压连接线 VCC, 另 一端通过第四电阻 R4接地, 第一微处理器 IC1连接于第二 电阻 R2和第四电阻 R4之间。
第一连接电路 J1连接逆变器控制接口, 其中 VCC来自 逆变器工作主电源, 通常为 +12V (+24V等) 。
SW是逆变器开关线, SW为低电平时, 逆变器完全关闭; SW 为高电平时: 1 ) 逆变器有负载则正常工作, 同时把工作 状态通过三条串行通讯线 CS, WR和 DATA送至第一微处理器 IC1 ; 2 ) 逆变器若无负载, 则自动进入休眠, 三条通讯线上
无信息传送。
第一微处理器 IC1始终供电, 但当关机状态第一微处理 器 IC1休眠后, 第一无线发射接收模块 WX1被关闭, 整机处 于微功耗状态, LED1熄灭。第一微处理器 IC1在关机休眠中 每隔一定时间自唤醒一次, 通过第一无线发射接收模块 WX1 询问 LCD显示模块是否处于开机状态, 若不是继续睡眠, 是 开机状态, 则第一微处理器 IC1置 PIN8为高, 第二三极管 N1和第一三极管 P1导通, SW被置高, 逆变器被打开, 第一 微处理器 IC1接收来自 CS, WR和 DATA的逆变器工作状态信 息,同时通过第一无线发射接收模块 WX1向显示装置,即 LCD 显示模块发送信息, 同时接收应答以确认开机状态, 若无应 答则回到关机状态。 若逆变器处于休眠状态, 第一微处理器 IC1收不到来自逆变器的信息, 则 IC1也进入休眠。 但每隔 一定时间自唤醒一次, 用以检查 CS, WR和 DATA信息, 同时 向 LCD模块发送休眠信息, 并接收应答以确认开机状态, 之 后再次进入休眠, 这样可以最大限度地降低开机状态下逆变 器休眠时的功耗。
参看图 3和图 4所示, 第二无线收发模组至少包括第二 连接电路 J2、 第二微处理器 IC2、 升压稳压电路、 第二电控 制开关电路和第二无线发射接收模块 XW2。
第二连接电路 J2 连接于显示装置, 显示装置内部电路 构造为现有技术, 应为本领域技术人员所熟悉。
第二微处理器 IC2 通过若干数据线与第二连接电路相 连, 若干数据线中至少包括片选信号线 CS、 写信号线 WR、 触发信号线 SW和串行数据线 DATA。
升压稳压电路和第二电控制开关电路, 第二连接电路依 次连接升压稳压电路、 第二电控制开关电路后与第二微处理 器 IC2连通。
第二无线发射接收模块 XW2与第二微处理器 IC2连接, 实现与第一无线发射接收模块 WX1相互通信, 第二无线发射 接收模块为市面上常见的可以实现无线发射与接收的简单 功能模块, 为技术人员容易获得, 利于本发明的实现。
继续参看图 3和图 4所示, 第二电控制开关电路包括第 三三级管 P2、 第四三极管 N2、 第八电阻 R8、 第九电阻 R9、 第十电阻 R10和第十一电阻 Rl l,第三三极管 P2的集电极与 升压稳压电路连接, 第三三极管 P2的基极通过第九电阻 R9 与第四三极管 N2的集电极连接, 第三三极管 P2的发射极与 第二微处理器 IC2连接, 第八电阻 R8串接于第三三极管 P2 的发射极与基极之间, 第四三极管 N2 的基极通过第十一电 阻 R11与第二微处理器 IC2连接, 第四三极管 N2的基极通 过第十电阻 R10接地, 第四三极管 N2的发射极接地。 另外, 第三三极管 P2的发射极连接一电池组 BT1, 电池组 BT1的正 极通过第一肖特基二极管 D1 与第二连接电路相连, 负极接 地。触发信号线 SW通过第十二电阻 R12与第二微处理器 IC2
连接。
本发明优选实施例中, 第三三极管 P2为 PNP型三极管, 第四三极管 N2为 NPN型三极管。
升压稳压电路包括升压集成电路 VR、第二肖特基二极管 D2、 第三肖特基二极管 D3和电感 L, 第二肖特基二极管 D2 负极与第二连接电路 J2 相连, 正极依次连接升压集成电路 VR、 电感 L后与第三三极管 P2 的集电极连接, 第三肖特基 二极管 D3与升压集成电路 VR的输入输出端, 即非接地的两 端并联。
升压稳压电路还包括第一电容 C1和第二电容 C2, 第一 电容 C1的一端与升压集成电路 VR的输出端连接, 另一端接 地, 第二电容 C2的一端与第三三极管 P2的集电极连接, 另 一端接地。
无线收发模组还包括充电控制器 CC1 和太阳能电池板 BT2, 太阳能电池板 BT2与充电控制器 CC1连接, 充电控制 器 CC1 的输出端连接第三三极管 P2 的发射极, 充电控制器 CC1的输出端还通过第三电容 C3接地。
如图 3和图 4所示, 当显示装置电路整体无供电时, 图 中的第二微处理器 IC2输入脚 PIN14为低, 通知第二微处理 器 IC2关机, IC2置输出脚 11为低, 同时关闭第二无线发射 接收模块 XW2, 随后自身进入关机睡眠状态。 此时 IC2唯一 的唤醒事件是其 PIN14上电平由低变高。电池的损耗仅有 IC2
的睡眠损耗电流, 此电流损耗对电池来说可以忽略不计, 此 当显示装置开始供电 (即 LCD显示板上的开关合上, J2 的 PIN6和 PIN2被连通),电池组 BT1电压通过图 4中的 Dl, 经 R12至 IC2的 PIN14, 此信号用以唤醒图 2的 IC2, IC2进 入工作状态, IC2置 PIN11为高, N2导通, P1导通, 电池组 BT1 电压经升压电路 (VR) 向显示装置电路提供一个稳定的 电压 (5V) 。 如图若没有升压电路, 由于电池组 BT1电压小 于 5V 且不稳定, 会导致显示电路的供电不足。 IC2 在接收 逆变器发送来的状态信息后, IC2启动 PIN5, PIN6, PIN7的 串行信息发送, 通知显示电路启动并显示相关信息。 此状态 为显示状态, 显示状态仅维持一段时间 (如 10 秒) , 之后 IC2进入睡眠状态, WR无发送, 显示电路自动关闭, 电池处 于微功耗状态。 此时唤醒事件是图 4中的 S1合上 (查询按 键) , 当 S1触发唤醒 IC2后, IC2重复开机显示过程, 处于 开机睡眠的 IC2每隔一定时间自唤醒一次以接收逆变器发送 的信息, 如逆变器工作不正常或需特别唤醒, 则 IC2启动显 示或报警, 否则继续睡眠, 这样显示电路开机状态仅有微小 功耗。
本发明还公开了一种逆变系统, 包括逆变器、 显示装置 和上述的无线收发模组, 其中仅有无线收发模组区别于现有 技术, 其他部分的具体线路构造并未绘制, 本领域技术人员
可以结合现有技术掌握除上述无线收发模组以外的其他部 分的构造, 在此不予赘述。 以上对本发明的具体实施例进行了详细描述, 但本发明 并不限制于以上描述的具体实施例, 其只是作为范例。 对于 本领域技术人员而言, 任何等同修改和替代也都在本发明的 范畴之中。 因此, 在不脱离本发明的精神和范围下所作出的 均等变换和修改, 都应涵盖在本发明的范围内。
Claims
1、 一种无线收发模组, 应用于具有一微功耗显示装置和逆 变器的逆变系统中, 该逆变器与该显示装置通过该无线收发 模组进行相互通信, 其特征在于, 该无线收发模组包括第一 无线收发模组和第二无线收发模组;
该第一无线收发模组至少包括:
第一连接电路, 连接于该逆变器的控制接口, 通过一工 作电压连接线接收由该逆变器送来的工作电压, 该第一连接 电路还包括一触发信号线以触发该逆变器的开闭;
第一微处理器, 通过若干数据线与第一连接电路相连, 该若干数据线中至少包括片选信号线、 写信号线和串行数据 线;
第一电控制开关电路, 分别与该工作电压连接线、 触发 信号线连接, 并与该第一微处理器相连;
分压电路, 一端接地, 另一端分别与该第一微处理器以 及该工作电压连接线相连;
降压电路,一端与该工作电压连接线连接,另一端接地; 第一无线发射接收模块, 与该第一微处理器连接; 该第二无线收发模组至少包括:
第二连接电路, 连接于该显示装置;
第二微处理器, 通过若干数据线与第二连接电路相连, 该若干数据线中至少包括片选信号线、 写信号线、 触发信号 线和串行数据线;
升压稳压电路和第二电控制开关电路, 该第二连接电路 依次连接该升压稳压电路、 该第二电控制开关电路后与该第 二微处理器连通;
第二无线发射接收模块, 与该第二微处理器连接, 实现 与该第一无线发射接收模块相互通信。
2、 如权利要求 1 所述无线收发模组, 其特征在于, 该降压 电路包括 CMOS 晶体管、 电解电容和发光二极管, 该发光二 极管正极与该工作电压连接线连接, 负极与该 CMOS 晶体管 的漏极连接, 该 CMOS 晶体管的源极接一工作电压, 并通过 该电解电容接地。
3、 如权利要求 2所述无线收发模组, 其特征在于, 该 CMOS 晶体管的栅极通过一稳压二极管接地, 该 CMOS 晶体管的栅 极与漏极之间串接有第一电阻。
4、 如权利要求 3所述无线收发模组, 其特征在于: 该 CMOS 晶体管为 N沟道 M0S增强型场效应晶体管。
5、 如权利要求 1 所述无线收发模组, 其特征在于: 该第一 电控制开关电路包括第一三极管、 第二三极管、 第三电阻、 第五电阻、 第六电阻和第七电阻, 该第一三极管的发射极与 该工作电压连接线相连, 该第一三极管的集电极与该触发信 号线连接, 该第一三极管的基极通过该第五电阻与该第二三 极管的集电极相连, 该第三电阻串接于该第一三极管的发射 极与基极之间, 该第二三极管的基极通过该第六电阻与该第 一微处理器连接, 该第二三极管的基极通过该第七电阻接 地, 该第二三极管的发射极接地。
6、 如权利要求 5 所述无线收发模组, 其特征在于, 该第一 三极管为 PNP型三极管, 该第二三极管为 NPN型三极管。
7、 如权利要求 1 所述无线收发模组, 其特征在于, 该分压 电路包括第二电阻和第四电阻, 该第二电阻的一端连接该工 作电压连接线, 另一端通过该第四电阻接地, 该第一微处理 器连接于该第二电阻和第四电阻之间。
8、 如权利要求 1 所述无线收发模组, 其特征在于, 该第二 电控制开关电路包括第三三级管、 第四三极管、 第八电阻、 第九电阻、 第十电阻和第十一电阻, 该第三三极管的集电极 与该升压稳压电路连接, 该第三三极管的基极通过该第九电 阻与该第四三极管的集电极连接, 该第三三极管的发射极与 该第二微处理器连接, 该第八电阻串接于该第三三极管的发 射极与基极之间, 该第四三极管的基极通过该第十一电阻与 该第二微处理器连接, 该第四三极管的基极通过该第十电阻 接地, 该第四三极管的发射极接地; 另外, 该第三三极管的 发射极连接一电池组, 该电池组的正极通过第一肖特基二极 管与该第二连接电路相连, 负极接地。
9、 如权利要求 8 所述无线收发模组, 其特征在于, 该触发 信号线通过第十二电阻与该第二微处理器连接。
10、 如权利要求 9所述无线收发模组, 其特征在于, 该第三 三极管为 PNP型三极管, 该第四三极管为 NPN型三极管。
11、 如权利要求 10 所述无线收发模组, 其特征在于, 该升 压稳压电路包括升压集成电路、 第二肖特基二极管、 第三肖 特基二极管和电感, 该第二肖特基二极管负极与该第二连接
电路相连, 正极依次连接该升压集成电路、 该电感后与该第 三三极管的集电极连接, 该第三肖特基二极管与该升压集成 电路非接地的两端并联。
12、 如权利要求 11 所述无线收发模组, 其特征在于, 该升 压稳压电路还包括第一电容和第二电容, 该第一电容的一端 与该升压集成电路的输出端连接, 另一端接地, 该第二电容 的一端与该第三三极管的集电极连接, 另一端接地。
13、 如权利要求 12 所述无线收发模组, 其特征在于, 该无 线收发模组还包括充电控制器和太阳能电池板, 该太阳能电 池板与该充电控制器连接, 该充电控制器的输出端连接该第 三三极管的发射极, 该充电控制器的输出端还通过第三电容 接地。
14、 一种逆变系统, 其特征在于, 包括逆变器、 显示装置和 如权利要求 1至 13中任意一项所述的无线收发模组。
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| CN201210234649.0A CN102800182B (zh) | 2012-07-09 | 2012-07-09 | 一种无线收发模组及其逆变系统 |
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| CN107797957A (zh) * | 2017-11-17 | 2018-03-13 | 华立科技股份有限公司 | 低成本m‑bus主机通讯电路 |
| CN108986575A (zh) * | 2018-10-19 | 2018-12-11 | 科盟(福州)电子科技有限公司 | 一种无线增强型教学互动系统及方法 |
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| CN102800182A (zh) | 2012-11-28 |
| CN102800182B (zh) | 2015-02-25 |
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