技术领域Technical Field
本发明涉及电致变色器件技术领域，具体而言，涉及一种电致变色器件驱动系统及方法。The present invention relates to the technical field of electrochromic devices, and in particular to an electrochromic device driving system and method.
背景技术Background technique
电致变色是指材料的光学属性在外加电场的作用下发生稳定、可逆的变化的现象，在视觉上表现为颜色或透明度的可逆变化。具有电致变色性能的材料称为电致变色材料，具有视力友好、低功耗等优点，在智能窗、防眩目后视镜等领域中有广泛的应用。电致变色材料制成的器件具有低功耗等特点，但是在使用时，通常存在一些问题，现有的电致变色器件的驱动电路体积较大，需要外接电源导线供电，导线长度限制了对电致变色器件的布置距离，驱动电路的体积限制了电致变色器件的布置空间，导致其应用场景较为局限。Electrochromism refers to the phenomenon that the optical properties of a material undergo stable and reversible changes under the action of an external electric field, which visually manifests as a reversible change in color or transparency. Materials with electrochromic properties are called electrochromic materials, which have the advantages of being vision-friendly and low power consumption. They are widely used in smart windows, anti-glare rearview mirrors and other fields. Devices made of electrochromic materials have characteristics such as low power consumption, but there are usually some problems when using them. The driving circuit of existing electrochromic devices is large in size and requires an external power supply wire. The length of the wire limits the layout distance of the electrochromic device. The volume of the driving circuit limits the layout space of the electrochromic device, resulting in its application scenarios being relatively limited.
发明内容Summary of the invention
本发明解决的问题是如何对电致变色器件的驱动电路进行改进，以减少空间及距离的限制。The problem solved by the present invention is how to improve the driving circuit of the electrochromic device to reduce the limitation of space and distance.
为解决上述问题，本发明提供一种电致变色器件驱动系统，包括电致变色器件、发射装置和驱动装置，所述电致变色器件与所述驱动装置电连接，所述发射装置与所述驱动装置通信连接，所述发射装置包括读写器，所述驱动装置包括RFID电子标签和信号调理电路，用于驱动所述电致变色器件，所述RFID电子标签与所述读写器相匹配，所述信号调理电路与所述驱动装置电连接。To solve the above problems, the present invention provides an electrochromic device driving system, including an electrochromic device, a transmitting device and a driving device, wherein the electrochromic device is electrically connected to the driving device, the transmitting device is communicatively connected to the driving device, the transmitting device includes a reader/writer, and the driving device includes an RFID electronic tag and a signal conditioning circuit for driving the electrochromic device, the RFID electronic tag matches the reader/writer, and the signal conditioning circuit is electrically connected to the driving device.
可选地，所述读写器包括读写器天线、射频接口模块和逻辑控制模块，所述射频接口模块包括发射器和射频接收器，其中，所述读写器天线用于与所述RFID电子标签进行通信，所述射频接口模块用于处理由所述逻辑控制模块发送而来的指令。Optionally, the reader/writer includes a reader/writer antenna, a radio frequency interface module and a logic control module, the radio frequency interface module includes a transmitter and a radio frequency receiver, wherein the reader/writer antenna is used to communicate with the RFID electronic tag, and the radio frequency interface module is used to process instructions sent by the logic control module.
可选地，所述逻辑控制模块包括微控制器、存储单元和应用接口驱动电路，所述微控制器用于对所述读写器发出或接收的信号进行编解码、对数据进行加解密，所述应用接口驱动电路用于与上位机进行输入或输出的通信。Optionally, the logic control module includes a microcontroller, a storage unit and an application interface driving circuit, the microcontroller is used to encode and decode the signals sent or received by the reader and writer and encrypt and decrypt the data, and the application interface driving circuit is used to communicate with the host computer for input or output.
可选地，所述RFID电子标签包括标签天线和射频芯片，所述标签天线包括UHFRFID弯折偶极子天线和电小环天线的一种，用于与所述读写器通信，所述射频芯片用于对信号进行调制和解调；所述信号调理电路用于将所述射频芯片产生的驱动信号转变为与电致变色器件相匹配的驱动电压。Optionally, the RFID electronic tag includes a tag antenna and a radio frequency chip, the tag antenna includes a UHFRFID bent dipole antenna and an electric small loop antenna, which is used to communicate with the reader/writer, and the radio frequency chip is used to modulate and demodulate the signal; the signal conditioning circuit is used to convert the driving signal generated by the radio frequency chip into a driving voltage matching the electrochromic device.
相对于现有技术，本发明通过读写器发射信号，驱动装置接收读写器的信号，通过射频芯片处理获得控制RFID电子标签的指令，进而通过信号调理电路驱动RFID电子标签，实现电子标签与电致变色器件的结合，通过RFID技术，实现能量的非接触式传输，获得相较于导线更长的通信范围；由于电子标签能耗较低，使得驱动电路的体积较小。Compared with the prior art, the present invention transmits signals through a reader/writer, a driving device receives the signals from the reader/writer, obtains instructions for controlling the RFID electronic tag through radio frequency chip processing, and then drives the RFID electronic tag through a signal conditioning circuit, thereby realizing the combination of the electronic tag and the electrochromic device. Through RFID technology, non-contact transmission of energy is realized, and a longer communication range is obtained compared to wires; since the electronic tag has low energy consumption, the size of the driving circuit is smaller.
另一方面，本发明提供一种基于读写器的电致变色器件无线驱动方法，应用于如上所述的电致变色器件驱动系统，所述基于读写器的电致变色器件无线驱动方法包括：读写器接收计算机网络系统发出的第一指令，通过所述读写器中的逻辑控制单元处理判断后将所述第一指令调制到载波信号上获得第一控制指令；通过所述读写器传递所述第一控制指令至电子标签；通过所述读写器接收由所述电子标签反射的调制信号，基于所述调制信号获得身份信息；通过所述读写器将所述身份信息发送至所述计算机网络系统，获得由所述计算机网络系统发送来的第二指令，通过所述逻辑控制单元处理判断后将所述第二指令调制到载波信号上获得第二控制指令，其中，所述第二指令为电信号；通过所述读写器发射所述第二控制指令至所述电子标签，以通过所述电子标签控制电致变色器件。On the other hand, the present invention provides a reader-writer-based electrochromic device wireless driving method, which is applied to the electrochromic device driving system as described above, and the reader-writer-based electrochromic device wireless driving method comprises: the reader-writer receives a first instruction issued by a computer network system, and after processing and judging by a logic control unit in the reader-writer, modulates the first instruction onto a carrier signal to obtain a first control instruction; transmits the first control instruction to an electronic tag through the reader-writer; receives a modulated signal reflected by the electronic tag through the reader-writer, and obtains identity information based on the modulated signal; sends the identity information to the computer network system through the reader-writer, obtains a second instruction sent by the computer network system, and after processing and judging by the logic control unit, modulates the second instruction onto a carrier signal to obtain a second control instruction, wherein the second instruction is an electrical signal; and transmits the second control instruction to the electronic tag through the reader-writer to control the electrochromic device through the electronic tag.
可选地，所述通过所述读写器发射所述第二控制指令至所述电子标签，以通过所述电子标签控制电致变色器件包括：Optionally, transmitting the second control instruction to the electronic tag through the reader/writer to control the electrochromic device through the electronic tag includes:
根据所述身份信息选中对应的电子标签；通过所述读写器对被选中的电子标签发射所述第二控制指令。The corresponding electronic tag is selected according to the identity information; and the second control instruction is transmitted to the selected electronic tag through the reader/writer.
可选地，所述通过所述读写器将所述身份信息发送至所述计算机网络系统，获得由所述计算机网络系统发送来的第二指令包括：Optionally, sending the identity information to the computer network system through the reader/writer to obtain a second instruction sent by the computer network system includes:
在所述计算机网络系统的逻辑运算模块识别所述身份信息后，对所述身份信息进行存储，根据所述身份信息确定所述第二指令的内容，其中，所述第二指令包括驱动指令，所述驱动指令包括控制所述电子标签产生的驱动电压和驱动时间。After the logic operation module of the computer network system recognizes the identity information, the identity information is stored, and the content of the second instruction is determined according to the identity information, wherein the second instruction includes a driving instruction, and the driving instruction includes controlling the driving voltage and driving time generated by the electronic tag.
可选地，所述第二指令还包括：Optionally, the second instruction further includes:
停止指令，所述停止指令包括控制所述电子标签停止产生驱动电压，并控制所述读写器停止向外发射指令。A stop instruction, wherein the stop instruction includes controlling the electronic tag to stop generating a driving voltage and controlling the reader to stop transmitting instructions externally.
相对于现有技术，本发明通过读写器发射第一控制指令，在回收到电子标签的反射信息后，确认身份信息，然后通过计算机发出第二指令，以对电子标签进行无线通信，保证在通信范围内准确识别和控制电致变色器件，通过RFID技术使计算机可以无线驱动电致变色器件，无需导线连接，扩大了控制范围。Compared with the prior art, the present invention transmits a first control instruction through a reader/writer, confirms the identity information after receiving the reflected information of the electronic tag, and then issues a second instruction through a computer to wirelessly communicate with the electronic tag, thereby ensuring accurate identification and control of the electrochromic device within the communication range. Through RFID technology, the computer can wirelessly drive the electrochromic device without the need for wire connection, thereby expanding the control range.
另一方面，本发明还提供一种基于电子标签的电致变色器件无线驱动方法，应用于如上所述的电致变色器件驱动系统，所述基于电子标签的电致变色器件无线驱动方法包括：On the other hand, the present invention further provides an electrochromic device wireless driving method based on an electronic tag, which is applied to the electrochromic device driving system as described above. The electrochromic device wireless driving method based on an electronic tag comprises:
在电子标签进入读写器的通信范围后，通过所述电子标签接收读写器发出的第一控制指令；After the electronic tag enters the communication range of the reader/writer, receiving a first control instruction sent by the reader/writer through the electronic tag;
通过所述电子标签发射自身的身份信息至所述读写器；通过所述电子标签接收来自所述读写器的第二控制指令；通过所述电子标签对所述第二控制指令进行译码获得指令内容，以驱动电致变色器件发生变色或停止驱动电致变色器件。The electronic tag transmits its own identity information to the reader/writer; the electronic tag receives a second control instruction from the reader/writer; the electronic tag decodes the second control instruction to obtain the instruction content to drive the electrochromic device to change color or stop driving the electrochromic device.
可选地，所述通过所述电子标签对所述第二控制指令进行译码获得指令内容，以驱动电致变色器件发生变色或停止驱动电致变色器件包括：Optionally, decoding the second control instruction through the electronic tag to obtain instruction content to drive the electrochromic device to change color or stop driving the electrochromic device includes:
通过所述指令内容确定所述电子标签是否需要产生驱动信号；若需要产生驱动信号，则判断所述驱动信号的驱动电压是否超过预设电压阈值；若所述驱动电压超过所述预设电压阈值，则控制信号调理电路驱动所述电致变色器件；若所述驱动电压未超过所述预设电压阈值，则根据所述指令内容驱动所述电致变色器件。Determine whether the electronic tag needs to generate a driving signal through the instruction content; if a driving signal needs to be generated, determine whether the driving voltage of the driving signal exceeds a preset voltage threshold; if the driving voltage exceeds the preset voltage threshold, control the signal conditioning circuit to drive the electrochromic device; if the driving voltage does not exceed the preset voltage threshold, drive the electrochromic device according to the instruction content.
所述基于电子标签的电致变色器件无线驱动方法相对于现有技术的有益效果与所述基于读写器的电致变色器件无线驱动方法基本相同，在此不再赘述。The beneficial effects of the wireless driving method of the electrochromic device based on the electronic tag relative to the prior art are substantially the same as those of the wireless driving method of the electrochromic device based on the reader/writer, and will not be described in detail herein.
附图说明BRIEF DESCRIPTION OF THE DRAWINGS
图1为本发明实施例的电致变色器件驱动系统组成框图；FIG1 is a block diagram of a driving system for an electrochromic device according to an embodiment of the present invention;
图2为本发明实施例的基于读写器的电致变色器件无线驱动方法的流程图；2 is a flow chart of a method for wirelessly driving an electrochromic device based on a reader/writer according to an embodiment of the present invention;
图3为本发明实施例的基于读写器的电致变色器件无线驱动方法的步骤流程图；3 is a flowchart of the steps of a wireless driving method for an electrochromic device based on a reader/writer according to an embodiment of the present invention;
图4为本发明实施例的基于电子标签的电致变色器件无线驱动方法的步骤流程图。FIG. 4 is a flowchart of the steps of a wireless driving method for an electrochromic device based on an electronic tag according to an embodiment of the present invention.
具体实施方式Detailed ways
为使本发明的上述目的、特征和优点能够更为明显易懂，下面结合附图对本发明的具体实施例做详细的说明。虽然附图中显示了本发明的某些实施例，然而应当理解的是，本发明可以通过各种形式来实现，而且不应该被解释为限于这里阐述的实施例，相反提供这些实施例是为了更加透彻和完整地理解本发明。应当理解的是，本发明的附图及实施例仅用于示例性作用，并非用于限制本发明的保护范围。In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. Although certain embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be interpreted as being limited to the embodiments described herein. On the contrary, these embodiments are provided to provide a more thorough and complete understanding of the present invention. It should be understood that the drawings and embodiments of the present invention are only for exemplary purposes and are not intended to limit the scope of protection of the present invention.
应当理解，本发明的方法实施方式中记载的各个步骤可以按照不同的顺序执行，和/或并行执行。此外，方法实施方式可以包括附加的步骤和/或省略执行示出的步骤。本发明的范围在此方面不受限制。It should be understood that the various steps described in the method embodiments of the present invention may be performed in different orders and/or in parallel. In addition, the method embodiments may include additional steps and/or omit the steps shown. The scope of the present invention is not limited in this respect.
本文使用的术语“包括”及其变形是开放性包括，即“包括但不限于”。术语“基于”是“至少部分地基于”。术语“一个实施例”表示“至少一个实施例”；术语“另一实施例”表示“至少一个另外的实施例”；术语“一些实施例”表示“至少一些实施例”；术语“可选地”表示“可选的实施例”。其他术语的相关定义将在下文描述中给出。需要注意，本发明中提及的“第一”、“第二”等概念仅用于对不同的装置、模块或单元进行区分，并非用于限定这些装置、模块或单元所执行的功能的顺序或者相互依存关系。The term "including" and its variations used in this document are open inclusions, that is, "including but not limited to". The term "based on" means "based at least in part on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one other embodiment"; the term "some embodiments" means "at least some embodiments"; the term "optionally" means "optional embodiments". Relevant definitions of other terms will be given in the following description. It should be noted that the concepts of "first", "second", etc. mentioned in the present invention are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.
需要注意，本发明中提及的“一个”、“多个”的修饰是示意性而非限制性的，本领域技术人员应当理解，除非在上下文另有明确指出，否则应该理解为“一个或多个”。It should be noted that the modifications of "one" and "plurality" mentioned in the present invention are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise clearly indicated in the context, it should be understood as "one or more".
如图1所示，本发明实施例提供一种电致变色器件驱动系统，包括电致变色器件、发射装置和驱动装置，所述电致变色器件与所述驱动装置电连接，所述发射装置与所述驱动装置通信连接，所述发射装置包括读写器，所述驱动装置包括RFID电子标签和信号调理电路，用于驱动所述电致变色器件，所述RFID电子标签与所述读写器相匹配，所述信号调理电路与所述驱动装置电连接。As shown in Figure 1, an embodiment of the present invention provides an electrochromic device driving system, including an electrochromic device, a transmitting device and a driving device, the electrochromic device is electrically connected to the driving device, the transmitting device is communicatively connected to the driving device, the transmitting device includes a reader/writer, the driving device includes an RFID electronic tag and a signal conditioning circuit for driving the electrochromic device, the RFID electronic tag matches the reader/writer, and the signal conditioning circuit is electrically connected to the driving device.
RFID(Radio Frequency Identification)，射频识别技术，是自动识别技术的一种，通过无线射频方式进行非接触双向数据通信，利用无线射频方式对记录媒体(电子标签或射频卡)进行读写，从而达到识别目标和数据交换的目的。RFID (Radio Frequency Identification) is a type of automatic identification technology that uses wireless radio frequency to perform non-contact two-way data communication and uses wireless radio frequency to read and write recording media (electronic tags or radio frequency cards) to achieve the purpose of identifying targets and exchanging data.
可选地，在本发明的实施例中，使用超高频射频识别技术(UHF RFID)无线驱动电致变色器件。Optionally, in an embodiment of the present invention, ultra high frequency radio frequency identification technology (UHF RFID) is used to wirelessly drive the electrochromic device.
所述发射装置可分为读写器和通信系统。The transmitting device can be divided into a reader/writer and a communication system.
在一实施例中，读写器为RFID读写器，通过射频识别信号自动识别目标对象并获取相关数据，无需人工干预，即可识别进入识别区域的物体。通过RFID读写器，可同时识别多个RFID标签，操作较为快捷方便。RFID读写器通过自身的通信模块与RFID电子标签进行无线通信，可以实现对标签识别码和内存数据的读出或写入操作。In one embodiment, the reader is an RFID reader, which automatically identifies the target object and obtains relevant data through radio frequency identification signals, and can identify objects entering the identification area without human intervention. Through the RFID reader, multiple RFID tags can be identified at the same time, and the operation is relatively fast and convenient. The RFID reader communicates wirelessly with the RFID electronic tag through its own communication module, and can realize the reading or writing of the tag identification code and memory data.
可选地，RFID读写器可以是固定式读写器，固定在应用场景中的预设位置。RFID读写器还可以是手持式读写器，以使用者为中心，控制所要驱动的电致变色器件。Optionally, the RFID reader-writer can be a fixed reader-writer, fixed at a preset position in the application scene. The RFID reader-writer can also be a handheld reader-writer, which is user-centric and controls the electrochromic device to be driven.
对于发射装置，可根据电致变色器件的特点，调整发射指令，改变磁场发射功率以及磁场发射的时间，从而控制电致变色器件的状态切换，还可以同时控制多个电致变色器件。For the transmitting device, the transmitting instructions can be adjusted according to the characteristics of the electrochromic device, the magnetic field transmitting power and the time of the magnetic field transmitting can be changed, so as to control the state switching of the electrochromic device, and multiple electrochromic devices can also be controlled at the same time.
所述驱动装置可分为RFID电子标签和信号调理电路。The driving device can be divided into an RFID electronic tag and a signal conditioning circuit.
信号调理电路，具体为驱动电致变色器件信号调理电路，用于将驱动信号转为与电致变色器件相匹配的驱动电压，实现电致变色器件的最佳变色。The signal conditioning circuit, specifically a signal conditioning circuit for driving an electrochromic device, is used to convert a driving signal into a driving voltage that matches the electrochromic device to achieve optimal color change of the electrochromic device.
通过RFID读写器以及RFID电子标签相互配合，通过RFID技术的无线传输，能够实现远距离控制电致变色器件，不受导线长度的限制，减小了电路体积和功耗。Through the cooperation of RFID readers and RFID electronic tags, and through the wireless transmission of RFID technology, it is possible to remotely control the electrochromic device without being limited by the length of the wire, thereby reducing the circuit volume and power consumption.
对于驱动装置，可与发射装置进行数据与能量的交换，根据电致变色器件的性质调整输出的电压大小，根据发射装置的指令调整输出电压的方向，以满足电致变色器件状态的切换。The driving device can exchange data and energy with the emitting device, adjust the output voltage according to the properties of the electrochromic device, and adjust the direction of the output voltage according to the instructions of the emitting device to meet the switching of the electrochromic device state.
可选地，在所述电致变色器件驱动系统中，具有多个所述电致变色器件。Optionally, in the electrochromic device driving system, there are a plurality of the electrochromic devices.
通过发射装置中的RFID读写器，发射电磁信号，与驱动装置中的RFID取得通信，在确认身份后，通过RFID读写器以电磁信号为载体，发射控制信号，在RFID电子标签接收信号后，经芯片解调后再通过信号调理电路将信号转变为驱动电压，以驱动电致变色器件使其变色。由于方案中通过RFID技术控制，故在此系统中，一个读写器可同时与多个RFID电子标签建立通信，从而控制多个电致变色器件。The RFID reader in the transmitting device transmits electromagnetic signals to communicate with the RFID in the driving device. After confirming the identity, the RFID reader uses the electromagnetic signal as a carrier to transmit the control signal. After the RFID electronic tag receives the signal, it is demodulated by the chip and then converted into a driving voltage through the signal conditioning circuit to drive the electrochromic device to change color. Since the solution is controlled by RFID technology, in this system, one reader can establish communication with multiple RFID electronic tags at the same time, thereby controlling multiple electrochromic devices.
可选地，所述读写器包括读写器天线、射频接口模块和逻辑控制模块，所述射频接口模块包括发射器和射频接收器，其中，所述读写器天线用于与所述RFID电子标签进行通信，所述射频接口模块用于处理由所述逻辑控制模块发送而来的指令。Optionally, the reader/writer includes a reader/writer antenna, a radio frequency interface module and a logic control module, the radio frequency interface module includes a transmitter and a radio frequency receiver, wherein the reader/writer antenna is used to communicate with the RFID electronic tag, and the radio frequency interface module is used to process instructions sent by the logic control module.
读写器天线用于接收和发射电磁信号，其中，接收电磁信号包括接收从RFID电子标签发射来的射频载波信号，并将射频载波信号转化为电信号；发射电磁信号包括将读写器中的电流信号转换成射频载波信号并发送给RFID电子标签。The reader antenna is used to receive and transmit electromagnetic signals, wherein receiving electromagnetic signals includes receiving radio frequency carrier signals transmitted from RFID electronic tags and converting the radio frequency carrier signals into electrical signals; transmitting electromagnetic signals includes converting the current signal in the reader into radio frequency carrier signals and sending them to the RFID electronic tags.
射频接口模块包括发射器和接收器。射频接口模块是RFID读写器的射频前端，也是影响RFID读写器效率的关键，主要负责射频信号的发射及接收。其中，发射器包括调制电路负责将需要发送给RFID电子标签的电磁信号加以调制，然后通过读写器天线发送；接收器包括解调电路，负责将来自RFID电子标签的电磁信号加以解调，并对其进行放大。The RF interface module includes a transmitter and a receiver. The RF interface module is the RF front end of the RFID reader and is also the key to the efficiency of the RFID reader. It is mainly responsible for the transmission and reception of RF signals. Among them, the transmitter includes a modulation circuit that is responsible for modulating the electromagnetic signal to be sent to the RFID electronic tag and then sending it through the reader antenna; the receiver includes a demodulation circuit that is responsible for demodulating the electromagnetic signal from the RFID electronic tag and amplifying it.
可选地，射频接口模块还包括时钟发生器，时钟发生器负责产生系统的正常工作时钟。Optionally, the radio frequency interface module further includes a clock generator, which is responsible for generating a normal working clock of the system.
可选地，所述逻辑控制模块包括微控制器、存储单元和应用接口驱动电路，所述微控制器用于对所述读写器发出或接收的信号进行编解码、对数据进行加解密，所述应用接口驱动电路用于与上位机进行输入或输出的通信。Optionally, the logic control module includes a microcontroller, a storage unit and an application interface driving circuit, the microcontroller is used to encode and decode the signals sent or received by the reader and writer and encrypt and decrypt the data, and the application interface driving circuit is used to communicate with the host computer for input or output.
逻辑控制模块是读写器的控制模块，在读写器工作时，由逻辑控制模块发出指令，以控制射频接口模块作出不同的操作。还执行防碰撞算法，防止多个RFID电子标签同时对读写器发射信号时出现的数据间碰撞。具体地，逻辑控制模块包括微控制器、接口驱动电路和存储单元。The logic control module is the control module of the reader/writer. When the reader/writer is working, the logic control module issues instructions to control the RF interface module to perform different operations. It also executes an anti-collision algorithm to prevent data collisions when multiple RFID tags transmit signals to the reader/writer at the same time. Specifically, the logic control module includes a microcontroller, an interface driver circuit, and a storage unit.
可选地，所述RFID电子标签包括标签天线和射频芯片，所述标签天线包括UHFRFID弯折偶极子天线和电小环天线的一种，用于与所述读写器通信，所述射频芯片用于对信号进行调制和解调；Optionally, the RFID electronic tag includes a tag antenna and a radio frequency chip, the tag antenna includes one of a UHFRFID bent dipole antenna and an electric small loop antenna, which is used to communicate with the reader, and the radio frequency chip is used to modulate and demodulate the signal;
所述信号调理电路用于将所述射频芯片产生的驱动信号转变为与电致变色器件相匹配的驱动电压。The signal conditioning circuit is used to convert the driving signal generated by the radio frequency chip into a driving voltage matching the electrochromic device.
标签天线负责发射和接收电磁波，用于接收RFID读写器传送过来的电磁信号，还用于将RFID读写器所需要的数据发送至读写器。天线匹配电路用于天线的阻抗匹配，实现最大效率的能量传输。The tag antenna is responsible for transmitting and receiving electromagnetic waves, receiving electromagnetic signals transmitted by the RFID reader, and sending the data required by the RFID reader to the reader. The antenna matching circuit is used for impedance matching of the antenna to achieve the most efficient energy transmission.
射频芯片负责对RFID读写器传送来的电磁信号进行译码判断处理，包括调制解调器、电压调节器和时钟发射器。其中，调制器将控制单元传出的数据进行调制成为射频信号，然后加载到天线上，用于被天线发射回RFID读写器。解调器将经过调制的信号加以解调，去除载波，获得最初的调制信号。电压调节器用于将从RFID读写器接收过来的射频信号转化为直流电源(DC)，经由其内部的储能装置将能量储存，再通过稳压电路确保电源供应稳定。The RF chip is responsible for decoding and judging the electromagnetic signal transmitted by the RFID reader, including a modem, a voltage regulator and a clock transmitter. Among them, the modulator modulates the data transmitted by the control unit into a radio frequency signal, and then loads it to the antenna for transmission back to the RFID reader by the antenna. The demodulator demodulates the modulated signal, removes the carrier, and obtains the original modulated signal. The voltage regulator is used to convert the radio frequency signal received from the RFID reader into a direct current power supply (DC), stores the energy through its internal energy storage device, and then ensures a stable power supply through a voltage stabilization circuit.
射频芯片还包括存储单元，其中，存储单元主要用于存储系统运行时产生的数据或识别数据。The radio frequency chip also includes a storage unit, wherein the storage unit is mainly used to store data or identification data generated when the system is running.
在一实施例中，RFID电子标签为无源RFID标签，故不需要为RFID电子标签及驱动装置供电，当驱动装置进入RFID读写器的通信范围时，RFID读写器发出的电磁信号被无源RFID标签接收，其中，被RFID电子标签接收到的一部分射频信号产生感应电流，为RFID电子标签供应能量，一部分能量信号被RFID电子标签内保存的数据信息调制后，携带自身的身份信息返射回读写器。In one embodiment, the RFID electronic tag is a passive RFID tag, so there is no need to power the RFID electronic tag and the driving device. When the driving device enters the communication range of the RFID reader, the electromagnetic signal emitted by the RFID reader is received by the passive RFID tag, wherein a portion of the radio frequency signal received by the RFID electronic tag generates an induced current to supply energy to the RFID electronic tag, and a portion of the energy signal is modulated by the data information stored in the RFID electronic tag and then reflected back to the reader with its own identity information.
在另一实施例中，RFID电子标签为有源/半有源RFID标签，则驱动装置还包括电源管理模块，为RFID电子标签中的微控制器或其他外界模块供电，实现标签的多功能化应用。有源RFID标签主动发射射频信号，在进入RFID读写器的通信范围后，将信息传送至RFID读写器。In another embodiment, the RFID electronic tag is an active/semi-active RFID tag, and the driving device further includes a power management module to power the microcontroller or other external modules in the RFID electronic tag, thereby realizing the multifunctional application of the tag. The active RFID tag actively transmits a radio frequency signal and transmits information to the RFID reader after entering the communication range of the RFID reader.
通信范围，包括RFID读写器电磁波所能发射到的范围，或RFID电子标签能接收到RFID读写器的范围。The communication range includes the range within which the electromagnetic waves of the RFID reader can be emitted, or the range within which the RFID electronic tag can receive the RFID reader.
另一方面，如图2和图3所示，本发明实施例提供一种基于读写器的电致变色器件无线驱动方法，应用于上述电致变色器件驱动系统，所述基于读写器的电致变色器件无线驱动方法包括：On the other hand, as shown in FIG. 2 and FIG. 3 , an embodiment of the present invention provides a reader-writer-based electrochromic device wireless driving method, which is applied to the above-mentioned electrochromic device driving system. The reader-writer-based electrochromic device wireless driving method includes:
步骤S100，读写器接收计算机网络系统发出的第一指令，通过所述读写器中的逻辑控制单元处理判断后将所述第一指令调制到载波信号上获得第一控制指令。Step S100: The reader receives a first instruction sent by a computer network system, and after being processed and judged by a logic control unit in the reader, the first instruction is modulated onto a carrier signal to obtain a first control instruction.
步骤S200，通过所述读写器传递所述第一控制指令至电子标签。Step S200: transmitting the first control instruction to the electronic tag through the reader/writer.
在一实施例中，通信系统指PC或其他上层网络系统。In one embodiment, the communication system refers to a PC or other upper-layer network system.
PC或其他上层网络系统将指令发送至读写器，读写器的逻辑控制单元对指令进行逻辑处理，判断此指令是否需要被发射，若是，则将信号调制到载波信号上，通过读写器天线将指令以电磁波的形式发射，用于寻找可通信的电子标签；若否，则等待指令。The PC or other upper network system sends the instruction to the reader/writer. The logic control unit of the reader/writer performs logical processing on the instruction to determine whether the instruction needs to be transmitted. If so, the signal is modulated onto the carrier signal and the instruction is transmitted in the form of electromagnetic waves through the reader/writer antenna to find a communicative electronic tag; if not, it waits for instructions.
在一实施例中，第一控制指令可以不具有指令信息，用于为无源电子标签进行供电，以及确认与其进行通信的电子标签的身份。In one embodiment, the first control instruction may not have instruction information, and is used to power the passive electronic tag and confirm the identity of the electronic tag communicating with the passive electronic tag.
步骤S300，通过所述读写器接收由所述电子标签反射的调制信号，基于所述调制信号获得身份信息。Step S300: receiving, by means of the reader/writer, a modulated signal reflected by the electronic tag, and obtaining identity information based on the modulated signal.
读写器的天线接收电子标签反射的调制信号，通过天线调节器传送至射频接口模块，通过接收器中的解调电路进行解调和解码后，将有效的身份信息传送。The antenna of the reader receives the modulated signal reflected by the electronic tag, transmits it to the RF interface module through the antenna adjuster, and after being demodulated and decoded by the demodulation circuit in the receiver, the valid identity information is transmitted.
步骤S400，通过所述读写器将所述身份信息发送至所述计算机网络系统，获得由所述计算机网络系统发送来的第二指令，通过所述逻辑控制单元处理判断后将所述第二指令调制到载波信号上获得第二控制指令，其中，所述第二指令为电信号。Step S400, sending the identity information to the computer network system through the reader/writer, obtaining a second instruction sent by the computer network system, and modulating the second instruction onto a carrier signal after processing and judgment by the logic control unit to obtain a second control instruction, wherein the second instruction is an electrical signal.
将有效的身份信息传送至计算机或后台主机系统进行处理，主机系统根据逻辑运算识别此标签的身份，然后根据标签身份或预设策略发出第二控制指令。The valid identity information is transmitted to a computer or a background host system for processing. The host system identifies the identity of the tag based on a logical operation, and then issues a second control instruction based on the tag identity or a preset strategy.
可选地，所述第二指令还包括：Optionally, the second instruction further includes:
停止指令，所述停止指令包括控制所述电子标签停止产生驱动电压，并控制所述读写器停止向外发射指令。A stop instruction, wherein the stop instruction includes controlling the electronic tag to stop generating a driving voltage and controlling the reader to stop transmitting instructions externally.
所述通过所述读写器将所述身份信息发送至所述计算机网络系统，获得由所述计算机网络系统发送来的第二指令包括：The sending of the identity information to the computer network system through the reader/writer to obtain a second instruction sent by the computer network system comprises:
在所述计算机网络系统的逻辑运算模块识别所述身份信息后，对所述身份信息进行存储，根据所述身份信息确定所述第二指令的内容，其中，所述第二指令包括驱动指令，所述驱动指令包括控制所述电子标签产生的驱动电压和驱动时间。After the logic operation module of the computer network system recognizes the identity information, the identity information is stored, and the content of the second instruction is determined according to the identity information, wherein the second instruction includes a driving instruction, and the driving instruction includes controlling the driving voltage and driving time generated by the electronic tag.
通过第二指令，可直接对读写器和电子标签进行一系列控制。Through the second instruction, a series of controls can be directly performed on the reader and the electronic tag.
步骤S500，通过所述读写器发射所述第二控制指令至所述电子标签，以通过所述电子标签控制电致变色器件。Step S500: transmitting the second control instruction to the electronic tag through the reader/writer, so as to control the electrochromic device through the electronic tag.
计算机或后台主机发射第二指令至读写器，第二指令中的控制指令使读写器中的射频接口模块进行调制，将电信号转为载波信号，然后由天线进行传输。电子标签接收到信号后，电子标签中的芯片对指令译码，判断是否需要产生驱动信号，若是，则产生驱动信号，驱动电致变色器件变色，实现对电致变色器件的长距离控制；若否，则继续等待指令。The computer or background host sends the second instruction to the reader/writer. The control instruction in the second instruction causes the radio frequency interface module in the reader/writer to modulate and convert the electrical signal into a carrier signal, which is then transmitted by the antenna. After the electronic tag receives the signal, the chip in the electronic tag decodes the instruction and determines whether a drive signal needs to be generated. If so, a drive signal is generated to drive the electrochromic device to change color, thereby realizing long-distance control of the electrochromic device; if not, it continues to wait for instructions.
可选地，所述通过所述读写器发射所述第二控制指令至所述电子标签，以通过所述电子标签控制电致变色器件包括：Optionally, transmitting the second control instruction to the electronic tag through the reader/writer to control the electrochromic device through the electronic tag includes:
根据所述身份信息选中对应的电子标签；Selecting a corresponding electronic tag according to the identity information;
通过所述读写器对被选中的电子标签发射所述第二控制指令。The second control instruction is transmitted to the selected electronic tag through the reader/writer.
在一实施例中，接收到电子标签的信号后，通过主机发射第二指令，所述第二指令用于控制反射信号的所述电子标签。In one embodiment, after receiving the signal from the electronic tag, a second instruction is transmitted through the host, and the second instruction is used to control the electronic tag that reflects the signal.
换言之，在后台主机确认身份后，发射的第二指令仅用于控制此电子标签，对通信范围中的不同电子标签分别进行身份确认和控制，达到同时控制多个电子标签的目的，同时也防止数据碰撞。In other words, after the background host confirms the identity, the second instruction transmitted is only used to control this electronic tag, and the identities of different electronic tags in the communication range are confirmed and controlled respectively, so as to achieve the purpose of controlling multiple electronic tags at the same time, while also preventing data collision.
在一实施例中，通过RFID读写机向外发射磁场，当电子标签进入到磁场范围内时，将存储单元内的身份信息反射发送给读写器，读写器读取信息后选中该标签，通过读写器天线向其发送驱动指令和能量。标签感应到能量后，一方面经过芯片内的整流稳压器转变为直流信号供标签各部分工作，一方面经过芯片内的调制解调器获得读写器的操作指令，经由逻辑控制单元判断处理后，产生驱动电压信号。一般无源标签感应输出的电压在1.2V左右，若该电压达到电致变色器件的开启电压，则可以省略信号调理电路，直接驱动电致变色器件变色，若该电压不满足电致变色器件的开启电压，则需要设计相应的信号调理电路。In one embodiment, a magnetic field is emitted outward by an RFID reader/writer. When the electronic tag enters the magnetic field range, the identity information in the storage unit is reflected and sent to the reader/writer. After the reader/writer reads the information, it selects the tag and sends driving instructions and energy to it through the reader/writer antenna. After the tag senses the energy, on the one hand, it is converted into a DC signal through the rectifier regulator in the chip for the operation of various parts of the tag. On the other hand, it obtains the operation instructions of the reader/writer through the modem in the chip. After being judged and processed by the logic control unit, a driving voltage signal is generated. Generally, the voltage output by the passive tag sensing is about 1.2V. If the voltage reaches the turn-on voltage of the electrochromic device, the signal conditioning circuit can be omitted and the electrochromic device can be directly driven to change color. If the voltage does not meet the turn-on voltage of the electrochromic device, a corresponding signal conditioning circuit needs to be designed.
类似的，当读写器向标签发送停止驱动指令时，读写器停止向外发射磁场，标签停止输出驱动电压。采用该种方法以及UHF RFID读写器可同时读取多个标签的特性，可以控制多个电致变色器件的状态切换。Similarly, when the reader sends a stop driving instruction to the tag, the reader stops emitting a magnetic field and the tag stops outputting a driving voltage. This method and the UHF RFID reader can read multiple tags at the same time, and the state switching of multiple electrochromic devices can be controlled.
第三方面，如图2和图4所示，本发明实施例提供一种基于电子标签的电致变色器件无线驱动方法，应用于如上所述的电致变色器件驱动系统，所述基于电子标签的电致变色器件无线驱动方法包括：In a third aspect, as shown in FIG. 2 and FIG. 4 , an embodiment of the present invention provides a wireless driving method for an electrochromic device based on an electronic tag, which is applied to the electrochromic device driving system as described above. The wireless driving method for an electrochromic device based on an electronic tag includes:
步骤S600，在电子标签进入读写器的通信范围后，通过所述电子标签接收读写器发出的第一控制指令。Step S600: After the electronic tag enters the communication range of the reader/writer, a first control instruction sent by the reader/writer is received through the electronic tag.
当电子标签为无源RFID标签时，电子标签接收读写器发来的第一控制指令。由于指令是由电磁波形式传输的，故具有能量，电子标签接收第一控制指令时，一部分电磁波被电压调节器整流为直流电源供电子标签内的电路工作，电子标签被激活。此时另一部分能量信号被电子标签内保存的数据信息调制后，将自身携带的唯一身份信息反射回读写器，用于使读写器识别电子标签的身份。When the electronic tag is a passive RFID tag, the electronic tag receives the first control instruction sent by the reader. Since the instruction is transmitted in the form of electromagnetic waves, it has energy. When the electronic tag receives the first control instruction, a part of the electromagnetic wave is rectified by the voltage regulator into a DC power supply for the circuit in the electronic tag to work, and the electronic tag is activated. At this time, another part of the energy signal is modulated by the data information stored in the electronic tag, and the unique identity information it carries is reflected back to the reader, so that the reader can identify the identity of the electronic tag.
当电子标签为有源RFID标签时，电子标签主动发射射频信号，在进入读写器的通信范围后，双方进行通信。When the electronic tag is an active RFID tag, the electronic tag actively transmits a radio frequency signal, and after entering the communication range of the reader/writer, the two parties communicate.
步骤S700，通过所述电子标签发射自身的身份信息至所述读写器。Step S700: transmitting the identity information of the electronic tag to the reader/writer.
通过标签天线，将自身的唯一身份信息反射回读写器。The tag's unique identification information is reflected back to the reader through the tag antenna.
步骤S800，通过所述电子标签接收来自所述读写器的第二控制指令。Step S800: receiving a second control instruction from the reader/writer via the electronic tag.
在读写器确认身份信息后，由后台主机发出第二指令，控制读写器发射第二控制指令，通过电磁波传输给电子标签。After the reader confirms the identity information, the background host sends a second instruction to control the reader to send the second control instruction, which is transmitted to the electronic tag through electromagnetic waves.
步骤S900，通过所述电子标签对所述第二控制指令进行译码获得指令内容，以驱动电致变色器件发生变色或停止驱动电致变色器件。Step S900: decoding the second control instruction through the electronic tag to obtain instruction content, so as to drive the electrochromic device to change color or stop driving the electrochromic device.
可选地，步骤S900包括：Optionally, step S900 includes:
通过所述指令内容确定所述电子标签是否需要产生驱动信号；Determining whether the electronic tag needs to generate a driving signal according to the instruction content;
若需要产生驱动信号，则判断所述驱动信号的驱动电压是否超过预设电压阈值；If a driving signal needs to be generated, determining whether a driving voltage of the driving signal exceeds a preset voltage threshold;
若所述驱动电压超过所述预设电压阈值，则控制信号调理电路驱动所述电致变色器件；If the driving voltage exceeds the preset voltage threshold, the signal conditioning circuit is controlled to drive the electrochromic device;
若所述驱动电压未超过所述预设电压阈值，则根据所述指令内容驱动所述电致变色器件。If the driving voltage does not exceed the preset voltage threshold, the electrochromic device is driven according to the instruction content.
标签天线接收第二控制指令，然后通过调制解调器进行解调和解码，获得指令内容，然后判断是否需要产生驱动信号，若是，则产生驱动信号，驱动电致变色器件；若否，则等待读写器发送指令。The tag antenna receives the second control instruction, then demodulates and decodes it through the modem to obtain the instruction content, and then determines whether a driving signal needs to be generated. If so, a driving signal is generated to drive the electrochromic device; if not, it waits for the reader to send an instruction.
本发明又一实施例提供的一种计算机可读存储介质，应用于包括如上所述的电致变色器件驱动系统，所述存储介质上存储有计算机程序，当所述计算机程序被处理器执行时，实现如上所述的基于读写器的电致变色器件无线驱动方法以及如上所述的基于电子标签的电致变色器件无线驱动方法。Another embodiment of the present invention provides a computer-readable storage medium, which is applied to the electrochromic device driving system as described above, and a computer program is stored on the storage medium. When the computer program is executed by a processor, the above-mentioned reader-writer-based electrochromic device wireless driving method and the above-mentioned electronic tag-based electrochromic device wireless driving method are implemented.
所述计算机可读存储介质相对于现有技术具有的有益效果与所述电致变色器件驱动系统、所述基于读写器的电致变色器件无线驱动方法和所述基于电子标签的电致变色器件无线驱动方法相同，在此不再赘述。The beneficial effects of the computer-readable storage medium relative to the prior art are the same as those of the electrochromic device driving system, the reader-writer-based electrochromic device wireless driving method, and the electronic tag-based electrochromic device wireless driving method, and are not repeated here.
现将描述可以作为本发明的服务器或客户端的电子设备，其是可以应用于本发明的各方面的硬件设备的示例。电子设备旨在表示各种形式的数字电子的计算机设备，诸如，膝上型计算机、台式计算机、工作台、个人数字助理、服务器、刀片式服务器、大型计算机、和其它适合的计算机。电子设备还可以表示各种形式的移动装置，诸如，个人数字处理、蜂窝电话、智能电话、可穿戴设备和其它类似的计算装置。本文所示的部件、它们的连接和关系、以及它们的功能仅仅作为示例，并且不意在限制本文中描述的和/或者要求的本发明的实现。An electronic device that can be used as a server or client of the present invention will now be described, which is an example of a hardware device that can be applied to various aspects of the present invention. Electronic devices are intended to represent various forms of digital electronic computer devices, such as laptop computers, desktop computers, workbenches, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. Electronic devices can also represent various forms of mobile devices, such as personal digital processing, cellular phones, smart phones, wearable devices, and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely examples, and are not intended to limit the implementation of the present invention described and/or required herein.
电子设备包括计算单元，其可以根据存储在只读存储器(ROM)中的计算机程序或者从存储单元加载到随机访问存储器(RAM)中的计算机程序，来执行各种适当的动作和处理。在RAM中，还可存储设备操作所需的各种程序和数据。计算单元、ROM以及RAM通过总线彼此相连。输入/输出(I/O)接口也连接至总线。The electronic device includes a computing unit, which can perform various appropriate actions and processes according to a computer program stored in a read-only memory (ROM) or a computer program loaded from a storage unit into a random access memory (RAM). In the RAM, various programs and data required for the operation of the device can also be stored. The computing unit, ROM, and RAM are connected to each other via a bus. An input/output (I/O) interface is also connected to the bus.
计算机系统可以包括客户端和服务器。客户端和服务器一般远离彼此并且通常通过通信网络进行交互。通过在相应的计算机上运行并且彼此具有客户端-服务器关系的计算机程序来产生客户端和服务器的关系。A computer system may include clients and servers. Clients and servers are generally remote from each other and usually interact through a communication network. The relationship of client and server is generated by computer programs running on respective computers and having a client-server relationship to each other.
本领域普通技术人员可以理解实现上述实施例方法中的全部或部分流程，是可以通过计算机程序来指令相关的硬件来完成，所述的程序可存储于一计算机可读取存储介质中，该程序在执行时，可包括如上述各方法的实施例的流程。其中，所述的存储介质可为磁碟、光盘、只读存储记忆体(Read-Only Memory，ROM)或随机存储记忆体(Random AccessMemory，RAM)等。在本申请中，所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本发明实施例方案的目的。另外，在本发明各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以是两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。A person of ordinary skill in the art can understand that all or part of the processes in the above-mentioned embodiment method can be implemented by instructing the relevant hardware through a computer program, and the program can be stored in a computer-readable storage medium. When the program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, the storage medium can be a disk, an optical disk, a read-only memory (ROM) or a random access memory (RAM), etc. In the present application, the unit described as a separate component may or may not be physically separated, and the component displayed as a unit may or may not be a physical unit, that is, it may be located in one place, or it may be distributed on multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the embodiment of the present invention. In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, or each unit can exist physically separately, or two or more units can be integrated in one unit. The above-mentioned integrated unit can be implemented in the form of hardware or in the form of a software functional unit.
虽然本公开披露如上，但本公开的保护范围并非仅限于此。本领域技术人员在不脱离本公开的精神和范围的前提下，可进行各种变更与修改，这些变更与修改均将落入本发明的保护范围。Although the disclosure is disclosed as above, the protection scope of the disclosure is not limited thereto. Those skilled in the art may make various changes and modifications without departing from the spirit and scope of the disclosure, and these changes and modifications will fall within the protection scope of the present invention.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210640267.1ACN115017929B (en) | 2022-06-08 | 2022-06-08 | Electrochromic device driving system and method |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210640267.1ACN115017929B (en) | 2022-06-08 | 2022-06-08 | Electrochromic device driving system and method |
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| CN115017929A CN115017929A (en) | 2022-09-06 |
| CN115017929Btrue CN115017929B (en) | 2024-06-07 |
| Application Number | Title | Priority Date | Filing Date |
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| CN202210640267.1AActiveCN115017929B (en) | 2022-06-08 | 2022-06-08 | Electrochromic device driving system and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102129580A (en)* | 2011-01-18 | 2011-07-20 | 北京航空航天大学 | Data communication method from label to reader-writer based on Miller codes |
| CN103649826A (en)* | 2011-03-16 | 2014-03-19 | 唯景公司 | On-board controller for multiple status windows |
| CN110095915A (en)* | 2018-01-29 | 2019-08-06 | 菲尔齐费尔公司 | For controlling the method and system of electrochromic film |
| CN113919377A (en)* | 2021-10-29 | 2022-01-11 | 海信家电集团股份有限公司 | Storage cabinet and article positioning system |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20100036089A (en)* | 2008-09-29 | 2010-04-07 | 삼성전자주식회사 | Radio frequency identification display pixel, display panel and display apparatus using the rfid display pixel |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102129580A (en)* | 2011-01-18 | 2011-07-20 | 北京航空航天大学 | Data communication method from label to reader-writer based on Miller codes |
| CN103649826A (en)* | 2011-03-16 | 2014-03-19 | 唯景公司 | On-board controller for multiple status windows |
| CN110095915A (en)* | 2018-01-29 | 2019-08-06 | 菲尔齐费尔公司 | For controlling the method and system of electrochromic film |
| CN113919377A (en)* | 2021-10-29 | 2022-01-11 | 海信家电集团股份有限公司 | Storage cabinet and article positioning system |
| Publication number | Publication date |
|---|---|
| CN115017929A (en) | 2022-09-06 |
| Publication | Publication Date | Title |
|---|---|---|
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