WO2011029224A1 - 人体电磁感应开关装置及启动电器设备的方法 - Google Patents

人体电磁感应开关装置及启动电器设备的方法 Download PDF

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Publication number
WO2011029224A1
WO2011029224A1 PCT/CN2009/073803 CN2009073803W WO2011029224A1 WO 2011029224 A1 WO2011029224 A1 WO 2011029224A1 CN 2009073803 W CN2009073803 W CN 2009073803W WO 2011029224 A1 WO2011029224 A1 WO 2011029224A1
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Prior art keywords
human body
electromagnetic induction
capacitor
circuit
signal
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PCT/CN2009/073803
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English (en)
French (fr)
Inventor
盛永祥
邢益涛
Original Assignee
Sheng Yongxiang
Xing Yitao
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Application filed by Sheng Yongxiang, Xing Yitao filed Critical Sheng Yongxiang
Priority to CN200980161331.0A priority Critical patent/CN102640250B/zh
Priority to PCT/CN2009/073803 priority patent/WO2011029224A1/zh
Publication of WO2011029224A1 publication Critical patent/WO2011029224A1/zh

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    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
    • H03K17/945—Proximity switches
    • H03K17/955—Proximity switches using a capacitive detector

Definitions

  • the present invention relates to electrical equipment, and more particularly to a human body electromagnetic induction switch device for starting an electrical device. Background technique
  • the power supply to the sensor circuit and the main circuit is usually a normal power supply or a space-type power supply. Since the conventional power supply mode is always powered, the power is wasted.
  • the interval power supply has a long time delay because it has a time gap between the two power supplies. When it is necessary to turn the switch on during this time interval, it takes a while to start the switch main circuit operation. And this delay will cause inconvenience to people. For example, for an illuminator used in a corridor, it is desirable for the body-sensing switch to turn on the power of the illuminator with minimal delay.
  • Other applications such as corridors, warehouses, underpasses, restrooms, etc., have similar requirements for automatic opening and closing of lights.
  • the technical problem to be solved by the present invention is to provide a switching device for starting an electrical device only when the human body touches or approaches, in view of the above-mentioned defects of large power consumption and response time delay of the prior art.
  • the technical solution adopted by the present invention to solve the technical problem is: constructing a human body electromagnetic induction switch device for starting an electrical device, comprising a detection circuit for detecting an electromagnetic induction signal of a human body; a drive circuit connected to the detection circuit, It generates a drive signal based on the output of the detection circuit for turning on the electrical device power or waking up the electrical device circuit board.
  • the detection circuit is touched by a human body or Outputs a voltage or current signal when the human body approaches.
  • the detection circuit includes a diode, a capacitor, and a conductive contact piece and/or a contact point; wherein one end of the diode is connected to the conductive contact piece and/or the contact point, The other end is connected to one end of the capacitor, and the other end of the capacitor is grounded or in the human body electromagnetic induction switch device of the present invention, and a resistor is further connected in parallel across the capacitor.
  • the drive circuit includes a controllable level conversion circuit module, an analog switch or S3.
  • the detection circuit includes a field effect transistor and a capacitor connected thereto, a first resistor, a second resistor, and a conductive contact piece and/or a contact point, wherein the driving circuit is Control level conversion circuit module.
  • the field effect transistor is a P-channel field effect transistor, and a source thereof is grounded through the capacitor and connected to an enable end of the controllable level conversion circuit module.
  • the drain is connected to the VCC, the gate is connected to the conductive contact piece and/or the contact point, the first resistor is connected between the gate of the P-channel field effect transistor and the ground, the second resistor and the capacitor in parallel.
  • the field effect transistor is an N-channel field effect transistor, the source thereof is connected to VCC, the drain is grounded through the capacitor, and is connected to the controllable level conversion circuit module.
  • the enable end, the gate is connected to the conductive contact piece and/or the contact point, the first resistor is connected between the gate of the P-channel field effect transistor and VCC, the second resistor and the capacitor in parallel.
  • the technical solution adopted by the present invention to solve the technical problem thereof is: providing a method for starting an electrical device, comprising:
  • the electrical device power is turned on or the electrical device circuit board is woken up in response to the drive signal.
  • the method for starting an electrical device according to the present invention is characterized in that the sensing signal comprises a voltage or current signal generated when a human body touches or approaches.
  • the invention has the following beneficial effects: Since the human body electromagnetic induction signal detection circuit does not consume The electric power can detect the voltage change caused by the electromagnetic induction signal of the human body, and transmit the voltage to the driving circuit, thereby saving power and having no delay caused by the interval power supply.
  • the scheme for starting the electrical device by using the electromagnetic induction signal of the human body of the present invention can also be used as an electronic system to determine whether the user has a reference for illegal operation behavior because it can detect whether the user is in close contact or touches the sensor position. And because this solution needs to rely on the large capacitance effect generated by the human body, it can well overcome the interference such as water droplets and mist, and can better overcome the sudden change of the external electric field. At the same time, since the sensor can be non-exposed, it can avoid wear, corrosion and increase the service life.
  • FIG. 1 is a schematic structural view of a human body electromagnetic induction switch device of the present invention
  • FIG. 2 is a flow chart of a method of starting an electrical device of the present invention
  • FIG. 3A is a circuit diagram of a first embodiment of a human body electromagnetic induction switch device of the present invention
  • FIG. 3B is a circuit diagram of a second embodiment of the human body electromagnetic induction switch device of the present invention
  • Figure 3D is a circuit diagram of a fourth embodiment of the human body electromagnetic induction switch device of the present invention
  • Figure 3E is a circuit diagram of a fifth embodiment of the human body electromagnetic induction switch device of the present invention
  • Figure 3F is a human body electromagnetic induction switch device of the present invention
  • FIG. 4A is a schematic diagram showing the voltage of the human body relative to the earth in the case of the power frequency alternating current around
  • FIG. 4B is an embodiment of the human body electromagnetic induction switch device according to the present invention, which is detected by the diode capacitance detecting circuit. a schematic diagram of the output voltage after the electromagnetic induction signal of the human body
  • FIG. 4B is an embodiment of the human body electromagnetic induction switch device according to the present invention, which is detected by the diode
  • 4C is a schematic diagram of an electrical signal outputted by a drive circuit in accordance with an embodiment of a human body electromagnetic induction switch device of the present invention. detailed description
  • the human body electromagnetic induction switching device 100 includes a detection circuit 101 and a drive circuit 102.
  • the detecting circuit 101 can detect the voltage change caused by the induced electromagnetic wave (ie, the human body electromagnetic induction signal) without power consumption, and transmit the voltage signal to the driving circuit 102, and the driving circuit 102
  • a drive signal is generated to activate the electrical device main circuit 120, for example, to turn on the power of the electrical device main circuit 120 or to wake up the circuit board of the electrical device main circuit 120.
  • the method of starting the electrical device is as shown in FIG. 2.
  • the detecting circuit 101 detects the human body electromagnetic induction signal and outputs the sensing signal;
  • the driving circuit 102 generates a driving signal based on the sensing signal;
  • Step 230 Turn on the electrical device power or wake up the electrical device circuit board in response to the driving signal.
  • an alternating current detection circuit is formed using diodes, capacitors, and conductive contact pads and/or contact points to convert the alternating electrical signal into a fluctuating direct current signal.
  • the resistor is used to accelerate the discharge speed of the capacitor after the human body leaves, and to maintain the stability of the electrical signal output by the detection circuit when no human body is approaching or contacting.
  • the role of the resistor is to accelerate the discharge of the capacitor and stabilize the level.
  • a simple set of diodes, capacitors, and conductive contacts/pieces of the detector circuit are designed to accommodate an additional large resistor to prevent floating charge buildup, conductive contact points/pieces 124 ( Directly exposed or covered.) Used to detect voltage changes caused by human touch or proximity.
  • the working principle is: When no one touches, the output signal is at a stable level; when someone (represented by finger 110) touches or approaches, a varying voltage is generated. When the voltage exceeds the threshold, the detector circuit drives the subsequent power supply to turn on or wake up the board.
  • the drive circuit can be, for example, a controllable switch, an analog switch, or a FET circuit.
  • the detection circuit includes a diode D1, a capacitor C1, and a conductive contact piece and/or a contact point 124.
  • the negative end of the diode D1 is connected to the conductive contact piece and/or the contact point 124, and the positive terminal and the capacitor C1.
  • One end is connected, and the other end of the capacitor is connected to VCC.
  • a resistor R1 is also connected in parallel across the capacitor C1.
  • the drive circuit is a controllable switch or an electronic switch S l .
  • the detection circuit includes a diode D2, a capacitor C2, and a conductive contact piece and/or a contact point 124.
  • the positive end of the diode D2 is connected to the conductive contact piece and/or the contact point 124, and the negative terminal and the capacitor C2.
  • One end is connected and the other end of the capacitor is grounded.
  • a resistor R2 is also connected in parallel across the capacitor C2.
  • the drive circuit is a controllable switch or an electronic switch S2.
  • the detection circuit includes a diode D3, a capacitor C3, and a conductive contact piece and/or a contact point 124, wherein the positive end of the diode D3 is connected to the conductive contact piece and/or the contact point 124, and the negative end Connected to one end of capacitor C3, the other end of the capacitor is grounded.
  • a resistor R3 is also connected in parallel across the capacitor C3.
  • the driving circuit is a controllable level converting circuit module U1.
  • the detection circuit includes a diode D4, a capacitor C4, and a conductive contact piece and/or a contact point 124.
  • the positive end of the diode D4 is connected to the conductive contact piece and/or the contact point 124, and the negative terminal and the capacitor C4.
  • One end is connected and the other end of the capacitor is grounded.
  • a resistor R4 is also connected in parallel across the capacitor C4.
  • the drive circuit is an analog switch S3.
  • controllable switch or the electronic switch S l, S2 is a circuit.
  • Analog Switch S3 is a chip.
  • the detector circuit is constructed using field effect transistors, capacitors, two resistors and conductive contacts and/or contact points.
  • the detection circuit includes a field effect transistor M1, a capacitor C5, a first resistor R7, a second resistor R6, and a conductive contact piece and/or a contact point 124.
  • the driving circuit is a controllable level conversion circuit module U2.
  • the field effect transistor M1 is a P-channel field effect transistor, and the source thereof is grounded through a capacitor C5 and connected to an enable terminal of the controllable level conversion circuit module U2, a drain connected to the VCC, a gate connected to the conductive contact piece, and/or
  • the contact point 124, the first resistor R7 is connected between the gate of the P-channel field effect transistor M1 and the ground, and the second resistor R6 is connected in parallel with the capacitor C5.
  • the detection circuit includes a field effect transistor M2, a capacitor C6, a first resistor R9, a second resistor R8, and a conductive contact piece and/or a contact point 124.
  • the driving circuit is a controllable level conversion circuit module U3.
  • the FET M2 is an N-channel FET, the source thereof is connected to VCC, the drain is grounded through the capacitor C6, and is connected to the enable end of the controllable level conversion circuit module U3, the gate is connected to the conductive contact piece and/ Or contact point 124, the first resistor R9 is connected between the gate of the P-channel FET M2 and VCC, and the second resistor R8 is connected in parallel with the capacitor C6.
  • the electromagnetic field sensing signal is used to drive the FET to be turned on and off, and the capacitor is charged during the turn-on. When the capacitor is turned off, the capacitor maintains a charge and outputs a stable high level signal.
  • the purpose of the first resistors R7, R9 is to keep the gate of the FET at a fixed level, such as GND or VCC, when there is no body sensing signal.
  • the second resistors R6 and R8 function to enable the capacitor to quickly discharge the capacitor to a stable level after the body sensing signal disappears.
  • controllable level shifting circuit modules U2, U3 are set to a high level enable, so the capacitor is at the GND level before being charged.
  • Controllable level shift circuit module U2 and U3 need to be enabled with low level. Refer to the previous figures 3A to 3D to change the position of the capacitor and its discharge resistor and connect VCC to form the output of the discharge circuit.
  • the human body electromagnetic induction switch device of the present invention is installed at a position where the user is inevitably approached or touched when the user uses the device, such as a fingerprint acquisition sensor or a vein collection sensor, a grip or a button of the electromechanical device.
  • 4A-4C are the voltage of the human body relative to the earth, the voltage output by the detector circuit, and the electrical signals output by the driving circuit, respectively.
  • the voltage of the human body relative to the earth also changes sinusoidally with time T.
  • the detection circuit When the human body approaches or touches, the detection circuit generates an induced voltage, and its waveform is as shown in Fig. 4B.
  • the driving circuit when the induced voltage exceeds the threshold, the driving circuit generates a driving signal, and the driving power source is turned on or wakes up the circuit board.
  • the driving circuit outputs a high level at the time of TO.
  • the performance comparison table of the human body electromagnetic induction switch device of the present invention and the existing mechanical button or active detection (such as infrared) is shown in Table 1.
  • the human body electromagnetic induction switch device of the invention can be applied to user identification devices such as fingerprint door locks, pulse detection locks, computer and mobile phone startup, factory equipment such as CNC lathes and hydraulic equipment, household appliances such as electric lights, air conditioner start, and the like.

Description

人体电磁感应开关装置及启动电器设备的方法
技术领域
本发明涉及电器设备， 更具体地说， 涉及一种用于启动电器设备的人体 电磁感应开关装置。 背景技术
现有人体感应开关例如红外、 声控开关中， 对其传感器电路及主电路的 供电通常为常通式供电或间隔式供电。 常通式供电方式由于一直供电， 电能 浪费较大。 间隔式供电由于在两次供电之间有一时间间隙， 当在该时间间隙 有需要接通开关时， 要等待一段时间后才能启动开关主电路工作， 因此有一 个较长时间的延迟。 而这一延迟会给人们带来不便。 例如， 对于在楼道中使 用的照明灯， 期望人体感应开关以最小的延迟来接通照明灯的电源。 其它应 用场所， 诸如走廊、 仓库、 地下通道， 洗手间等自动开、 关灯场所也有类似 需求。
另外， 城市或者有人类活动的地方， 已经充满电磁波， 尤其是 50/60HZ 的工频波波动尤为巨大（峰峰值可达到大约 220V) ,也有其他电磁波比如 GSM 信号等。 在这样的环境中， 人体上都会产生电磁感应信号。 发明内容
本发明要解决的技术问题在于， 针对现有技术的上述耗电大及响应时间 延迟的缺陷， 提供一种仅当人体触摸或接近时才启动电器设备的开关装置。
本发明解决其技术问题所采用的技术方案是： 构造一种人体电磁感应开 关装置， 用于启动电器设备， 包括用于检测人体电磁感应信号的检波电路； 连接于所述检波电路的驱动电路， 其基于所述检波电路的输出产生驱动信号， 用以接通电器设备电源或唤醒电器设备电路板。
在本发明所述的人体电磁感应开关装置中， 所述检波电路在人体触摸或 人体接近时输出电压或电流信号。
在本发明所述的人体电磁感应开关装置中， 所述检波电路包括二极管、 电容及导电接触片和 /或接触点； 其中， 所述二极管一端与所述导电接触片和 /或接触点相连， 另一端与所述电容的一端相连， 所述电容的另一端接地或 在本发明所述的人体电磁感应开关装置中， 所述电容两端还并联有电 阻。
在本发明所述的人体电磁感应开关装置中， 所述驱动电路包括可控电平 变换电路模块、 模拟开关或 S3。
在本发明所述的人体电磁感应开关装置中， 所述检波电路包括场效应管 及与其相连的电容、 第一电阻、 第二电阻及导电接触片和 /或接触点， 所述驱 动电路为可控电平变换电路模块。
在本发明所述的人体电磁感应开关装置中， 所述场效应管为 P沟道场效 应管， 其源极通过所述电容接地并连接于所述可控电平变换电路模块的使能 端、 漏极接 VCC、 栅极接所述导电接触片和 /或接触点， 所述第一电阻连接在 所述 P沟道场效应管的栅极与地之间， 所述第二电阻与所述电容并联。
在本发明所述的人体电磁感应开关装置中， 所述场效应管为 N沟道场效 应管， 其源极接 VCC、漏极通过所述电容接地并连接于所述可控电平变换电路 模块的使能端、 栅极接所述导电接触片和 /或接触点， 所述第一电阻连接在所 述 P沟道场效应管的栅极与 VCC之间， 所述第二电阻与所述电容并联。
本发明解决其技术问题所采用的技术方案是： 提供一种启动电器设备的 方法， 包括：
检测人体电磁感应信号， 并输出所述感应信号；
基于所述感应信号生成驱动信号； 且
响应所述驱动信号接通电器设备电源或唤醒电器设备电路板。
在本发明所述的启动电器设备的方法， 其特征在于， 所述感应信号包括 有人体触摸或接近时产生的电压或电流信号。
实施本发明， 具有以下有益效果： 由于人体电磁感应信号检波电路不耗 电即可以检测到人体电磁感应信号的所带来的电压变化， 并将电压传送到驱 动电路， 因此可以节省电能， 并且无因间隔供电所造成的延迟。 另外， 采用 本发明人体电磁感应信号来启动电器设备的方案， 由于能够检测用户是否紧 贴或者触碰传感器位置， 因此还能作为电子系统判断用户是否有违法操作行 为的参考。 并且由于本方案需要借助人体产生的大电容效应， 能够很好地克 服湿度如水滴、 雾气等干扰， 并能较好地克服外界电场突变情况。 同时， 由 于传感器可以是非暴露的， 能够避免磨损、 腐蚀， 提高使用寿命。 附图说明
下面将结合附图及实施例对本发明作进一步说明， 附图中：
图 1是本发明人体电磁感应开关装置的结构示意图；
图 2是本发明启动电器设备的方法的流程图；
图 3A是本发明人体电磁感应开关装置第一实施例的电路示意图； 图 3B是本发明人体电磁感应开关装置第二实施例的电路示意图； 图 3C是本发明人体电磁感应开关装置第三实施例的电路示意图； 图 3D是本发明人体电磁感应开关装置第四实施例的电路示意图； 图 3E是本发明人体电磁感应开关装置第五实施例的电路示意图； 图 3F是本发明人体电磁感应开关装置第六实施例的电路示意图； 图 4A为在周围有工频交流电的情况下， 人体相对大地的电压的示意图； 图 4B为根据本发明人体电磁感应开关装置一实施例， 经过二极管电容检 波电路检测到人体电磁感应信号后所输出电压的示意图；
图 4C为根据本发明人体电磁感应开关装置一实施例， 驱动电路输出的电 信号的示意图。 具体实施方式
如图 1所示， 人体电磁感应开关装置 100包括检波电路 101和驱动电路 102。 检波电路 101不耗电即可以检测到人体因感应电磁波所带来的电压变化 (即人体电磁感应信号），并将电压信号传送到驱动电路 102， 由驱动电路 102 产生驱动信号， 用以启动电器设备主电路 120， 例如， 接通电器设备主电路 120的电源或唤醒电器设备主电路 120的电路板。
在操作中， 启动电器设备的方法如图 2所示， 在步骤 210， 检波电路 101 检测人体电磁感应信号， 并输出感应信号； 在步骤 220， 驱动电路 102基于所 述感应信号生成驱动信号； 在步骤 230， 响应所述驱动信号接通电器设备电源 或唤醒电器设备电路板。
在本发明的多个实施例中， 使用二极管、 电容及导电接触片和 /或接触点 形成交流检波电路， 将交变电信号转变为波动的直流信号。 并且使用电阻， 用于加速人体离开后电容放电的速度， 以及保持无人体接近或者接触时候检 波电路输出电信号的稳定。 其中电阻的作用是为了加速电容放电以及稳定电 平。 如图 3A—图 3D所示， 设计一套简单的二极管、 电容和导电的接触点 /片 构成的检波电路， 配合一个附带的大电阻以防止浮空电荷积聚， 导电的接触 点 /片 124 (直接裸露或者有覆盖物都行） 用于检测人体触摸或者接近时候带 来的电压变化。
其工作原理是： 当没有人触碰时候， 输出信号为稳定的电平； 当有人（用 手指 110代表） 触碰或者接近， 就会产生变化的电压。 当电压超过门限， 就 会使检波电路驱动后面的电源导通或者唤醒电路板。 驱动电路可以是比如可 控开关、 模拟开关或者场效应管电路。
如图 3A所示， 检波电路包括二极管 Dl、 电容 C1及导电接触片和 /或接触 点 124， 其中， 所述二极管 D1负端与导电接触片和 /或接触点 124相连， 正端 与电容 C1的一端相连， 电容的另一端接 VCC。 电容 C1两端还并联有电阻 Rl。 驱动电路为可控开关或电子开关 S l。
如图 3B所示， 检波电路包括二极管 D2、 电容 C2及导电接触片和 /或接触 点 124， 其中， 所述二极管 D2正端与导电接触片和 /或接触点 124相连， 负端 与电容 C2的一端相连， 电容的另一端接地。 电容 C2两端还并联有电阻 R2。 驱动电路为可控开关或电子开关 S2。
如图 3C所示， 检波电路包括二极管 D3、 电容 C3及导电接触片和 /或接触 点 124， 其中， 所述二极管 D3正端与导电接触片和 /或接触点 124相连， 负端 与电容 C3的一端相连， 电容的另一端接地。 电容 C3两端还并联有电阻 R3。 驱动电路为可控电平变换电路模块 U1。
如图 3D所示， 检波电路包括二极管 D4、 电容 C4及导电接触片和 /或接触 点 124， 其中， 所述二极管 D4正端与导电接触片和 /或接触点 124相连， 负端 与电容 C4的一端相连， 电容的另一端接地。 电容 C4两端还并联有电阻 R4。 驱动电路为模拟开关 S3。
其中可控开关或电子开关 S l、 S2是一种电路。 模拟开关 S3是一种芯片。 在本发明的其它实施例中， 使用场效应管、 电容、 两个电阻及导电接触 片和 /或接触点构成检波电路。
如图 3E所示， 检波电路包括场效应管 Ml、 电容 C5、 第一电阻 R7、 第二 电阻 R6及导电接触片和 /或接触点 124，所述驱动电路为可控电平变换电路模 块 U2。 其中， 场效应管 Ml为 P沟道场效应管， 其源极通过电容 C5接地并连 接于可控电平变换电路模块 U2的使能端、 漏极接 VCC、 栅极接导电接触片和 /或接触点 124， 第一电阻 R7连接在 P沟道场效应管 Ml的栅极与地之间， 第 二电阻 R6与电容 C5并联。
如图 3F所示， 检波电路包括场效应管 M2、 电容 C6、 第一电阻 R9、 第二 电阻 R8及导电接触片和 /或接触点 124， 驱动电路为可控电平变换电路模块 U3 o 其中， 所述场效应管 M2为 N沟道场效应管， 其源极接 VCC、 漏极通过电 容 C6接地并连接于可控电平变换电路模块 U3的使能端、 栅极接导电接触片 和 /或接触点 124，第一电阻 R9连接在 P沟道场效应管 M2的栅极与 VCC之间， 第二电阻 R8与电容 C6并联。
其工作原理是： 通过人体电磁感应信号， 驱动场效应管导通与关断， 在 导通的时候给电容充电， 在关断的时候电容保持电荷， 输出稳定的高电平信 号。 第一电阻 R7、 R9的作用是使场效应管的栅极在无人体感应信号时候， 保 持固定的电平， 比如 GND或者 VCC。 第二电阻 R6、 R8的作用是使电容能够在 人体感应信号消失后， 快速给电容放电， 使其恢复到稳定的电平。
在图 3E和 3F的实施例中， 可控电平变换电路模块 U2、 U3设置为高电平 使能， 因此电容在未经过充电前， 为 GND 电平。 如果可控电平变换电路模块 U2、 U3需要用低电平使能， 可以参考前面的图 3A至 3D , 调换电容与其放电 电阻的位置， 连接 VCC , 形成放电电路输出。
本发明的人体电磁感应开关装置安装在用户使用设备时候， 用户必然会 接近、 触碰的位置， 比如指紋采集传感器或者静脉采集传感器的周围、 机电 设备的握把或按键。
图 4A—图 4C分别是人体相对大地的电压、检波电路输出的电压、 以及驱 动电路输出的电信号。
如图 4A所示， 在工频交流电环境中， 人体相对大地的电压随时间 T也呈 正弦波变化。 当人体接近或触碰时， 检波电路产生感应电压， 其波形如图 4B 所示。 如前所述， 当该感应电压超过门限， 驱动电路即产生驱动信号， 驱动 电源导通或者唤醒电路板， 如图 4C所示， TO时刻开始驱动电路输出高电平。
本发明的人体电磁感应开关装置与现有机械按键或有源探测 （如红外） 的性能比较表如表一所示。
机械按键 有源探测 （红外） 人体电磁感应 速度 lOOus-lOms 0.5-2S 10ms 工作功耗 0 lOuA以上 0
体积 中 大 小 安装难易 中 难 容易
寿命 10000次 0.3-2年 10年以上 系统成本 0.1-0.8元 0.3-5元 0.05-0.07元 防非人为干扰 中 弱 强
防水 否 弱 是 温度影响 不受影响 有影响 不受影响 环保 否 否 是
Figure imgf000009_0001
本发明的人体电磁感应开关装置可应用于用户识别设备如指紋门锁、 静 脉探测锁、 电脑和手机启动、 工厂设备启如数控车床和液压设备、 家用电器 如电灯、 空调启动等。

Claims

权 利 要 求
1、 一种人体电磁感应开关装置， 用于启动电器设备， 其特征在于， 包括 用于检测人体电磁感应信号的检波电路； 连接于所述检波电路的驱动电路， 其基于所述检波电路的输出产生驱动信号， 用以接通电器设备电源或唤醒电 器设备电路板。
2、 根据权利要求 1所述的人体电磁感应开关装置， 其特征在于， 所述检 波电路在人体触摸或人体接近时输出电压或电流信号。
3、 根据权利要求 2所述的人体电磁感应开关装置， 其特征在于， 所述检 波电路包括二极管、 电容及导电接触片和 /或接触点； 其中， 所述二极管一端 与所述导电接触片和 /或接触点相连， 另一端与所述电容的一端相连， 所述电 容的另一端接地或 VCC。
4、 根据权利要求 3所述的人体电磁感应开关装置， 其特征在于， 所述 电容两端还并联有电阻。
5、 根据权利要求 3或 4所述的人体电磁感应开关装置， 其特征在于， 所 述驱动电路包括可控电平变换电路模块、 可控开关、 电子开关或模拟开关。
6、 根据权利要求 2所述的人体电磁感应开关装置， 其特征在于， 所述检 波电路包括场效应管及与其相连的电容、 第一电阻、 第二电阻及导电接触片 和 /或接触点， 所述驱动电路为可控电平变换电路模块。
7、 根据权利要求 6所述的人体电磁感应开关装置， 其特征在于， 所述场 效应管为 P沟道场效应管， 其源极通过所述电容接地并连接于所述可控电平 变换电路模块的使能端、 漏极接 VCC、 栅极接所述导电接触片和 /或接触点， 所述第一电阻连接在所述 P沟道场效应管的栅极与地之间， 所述第二电阻与 所述电容并联。
8、 根据权利要求 6所述的人体电磁感应开关装置， 其特征在于， 所述场 效应管为 N沟道场效应管， 其源极接 VCC、漏极通过所述电容接地并连接于所 述可控电平变换电路模块的使能端、 栅极接所述导电接触片和 /或接触点， 所 述第一电阻连接在所述 P沟道场效应管的栅极与 VCC之间， 所述第二电阻与 所述电容并联。
9、 一种启动电器设备的方法， 其特征在于， 包括：
检测人体电磁感应信号， 并输出所述感应信号；
基于所述感应信号生成驱动信号； 且
响应所述驱动信号接通电器设备电源或唤醒电器设备电路板。
10、 根据权利要求 9所述的启动电器设备的方法， 其特征在于， 所述感 应信号包括有人体触摸或接近时产生的电压或电流信号。
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103489029A (zh) * 2013-09-26 2014-01-01 中国联合网络通信集团有限公司 一种射频卡
EP3175319A1 (en) * 2014-08-02 2017-06-07 Sony Corporation Electronic device with static electric field sensor and related method

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109327216A (zh) * 2018-10-18 2019-02-12 广州众诺电子技术有限公司 一种基于电磁感应的开机方法及装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2079835U (zh) * 1990-11-09 1991-06-26 陈晓光 闪光指示触摸延时开关
WO2004070396A2 (en) * 2003-02-10 2004-08-19 N-Trig Ltd. Touch detection for a digitizer
US20050121602A1 (en) * 2003-12-08 2005-06-09 Robin Peng Digital, touchless electrical switch
JP2009200578A (ja) * 2008-02-19 2009-09-03 Toto Ltd 高周波センサおよび高周波スイッチ

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101093990A (zh) * 2007-06-11 2007-12-26 美的集团有限公司 触控感应电路

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2079835U (zh) * 1990-11-09 1991-06-26 陈晓光 闪光指示触摸延时开关
WO2004070396A2 (en) * 2003-02-10 2004-08-19 N-Trig Ltd. Touch detection for a digitizer
US20050121602A1 (en) * 2003-12-08 2005-06-09 Robin Peng Digital, touchless electrical switch
JP2009200578A (ja) * 2008-02-19 2009-09-03 Toto Ltd 高周波センサおよび高周波スイッチ

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103489029A (zh) * 2013-09-26 2014-01-01 中国联合网络通信集团有限公司 一种射频卡
CN103489029B (zh) * 2013-09-26 2017-02-08 中国联合网络通信集团有限公司 一种射频卡
EP3175319A1 (en) * 2014-08-02 2017-06-07 Sony Corporation Electronic device with static electric field sensor and related method

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