CN113689637A - Doorbell without button and implementation method thereof - Google Patents

Doorbell without button and implementation method thereof Download PDF

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Publication number
CN113689637A
CN113689637A CN202110782413.XA CN202110782413A CN113689637A CN 113689637 A CN113689637 A CN 113689637A CN 202110782413 A CN202110782413 A CN 202110782413A CN 113689637 A CN113689637 A CN 113689637A
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main control
doorbell
control mcu
sound
door
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陆成刚
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Zhejiang University of Technology ZJUT
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Zhejiang University of Technology ZJUT
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    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B3/00—Audible signalling systems; Audible personal calling systems
    • G08B3/10—Audible signalling systems; Audible personal calling systems using electric transmission; using electromagnetic transmission
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/48—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 specially adapted for particular use
    • G10L25/51—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 specially adapted for particular use for comparison or discrimination

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
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  • Alarm Systems (AREA)

Abstract

一种不需要按钮的门铃，包括电池模块、接触式麦克风、主控MCU芯片和蜂鸣器，电池模块与接触式麦克风、主控MCU芯片和蜂鸣器连接，接触式麦克风与主控MCU芯片连接，主控MCU芯片与蜂鸣器连接；接触式麦克风是能够接收固体传导声音，却对空气传导声音不敏感的传感器，接触式麦克风在供电时处于开启状态，用于实时监听墙面或门面传递的固体表面声波；所述主控MCU模块分析采集的声波数据，滤除偶尔误触碰门面，或者风吹门面，以及关门开门的碰击声，识别出间隔短促、持续两三下的敲击声脉冲，将其识别为敲门声，然后出发蜂鸣器报警。以及提供一种不需要按钮的门铃的实现方法。本发明简化结构、降低故障率。

Figure 202110782413

A doorbell that does not need a button, comprising a battery module, a contact microphone, a main control MCU chip and a buzzer, the battery module is connected to the contact microphone, the main control MCU chip and the buzzer, and the contact microphone is connected to the main control MCU chip Connection, the main control MCU chip is connected to the buzzer; the contact microphone is a sensor that can receive solid conduction sound, but is insensitive to air conduction sound. The contact microphone is turned on when power is supplied, and is used to monitor walls or facades in real time. The transmitted solid surface acoustic wave; the main control MCU module analyzes the collected acoustic wave data, filters out the occasional accidental touch on the facade, or the wind blowing the facade, and the knocking sound of closing the door and opening the door, and recognizes the knocking of short intervals and lasting two or three times. The sound pulse is recognized as a knock on the door, and the buzzer alarms. And an implementation method of a doorbell that does not require a button is provided. The invention simplifies the structure and reduces the failure rate.

Figure 202110782413

Description

Doorbell without button and implementation method thereof
Technical Field
The invention relates to a doorbell and an implementation method thereof.
Background
A button is necessarily installed on a door of a traditional doorbell, and the button is connected with a buzzer. When the button is pressed, a buzzer is triggered to alarm, so that the owner is informed to open the door. For example, in the previously disclosed patent "a doorbell structure", a foot pad is arranged at the front bottom of a door, and a doorbell button is arranged in the foot pad, so that a user can easily press a bell in a foot-stepping mode no matter how tall or short the user is and whether the user conveniently uses a hand (for example, carrying things in the hand). The patent 'lazy doorbell' uses an electronic communication means, a person entering a door presses a doorbell and then triggers a camera on the door to grab a face of the person, and the face of the person is sent to a mobile phone of a host through WIFI; the owner decides whether to communicate with the door entrants (shouting) according to the needs, or can remotely control the door opening without walking to the door side. There is also a button device and the manner of triggering the door open is more complicated, more convenient, more human-friendly and automated.
From the above two examples, the doorbell has almost two components, a button and an alarm device (in the case of a lazy doorbell, a photo is sent to the owner's cell phone) that is triggered by the button being pressed. This means that both wired and wireless communication between the two parts requires a certain cost of communication and also means a certain degree of complexity of the system, and thus an increased failure rate of the system due to the complexity. Fig. 1 shows a conventional doorbell structure.
Disclosure of Invention
In order to overcome the defects of complex system and high failure rate of the existing doorbell, the invention provides the doorbell which simplifies the structure, reduces the failure rate and does not need a button and the implementation method thereof
The technical scheme adopted by the invention for solving the technical problems is as follows:
a doorbell without a button comprises a battery module, a contact microphone, a main control MCU chip and a buzzer, wherein the battery module is connected with the contact microphone, the main control MCU chip and the buzzer; the contact microphone is a sensor which can receive solid conducted sound but is insensitive to air conducted sound, is in an open state when powered and is used for monitoring solid surface sound waves transmitted by a wall surface or a door surface in real time; the main control MCU module analyzes the collected sound wave data, filters the sound wave data which accidentally touches the door face in a wrong way or blows the door face by wind, and the hitting sound of closing the door and opening the door, recognizes the hitting sound pulse with short interval and lasting two or three times, recognizes the hitting sound pulse as the hitting sound, and then starts the buzzer to give an alarm.
A realization method of a doorbell without a button comprises the following steps:
1) the contact microphone is started to be in a working state and keeps in contact with a door surface or a wall surface;
2) the contact microphone collects solid surface acoustic wave data;
3) analyzing the sound wave data by the master control MCU module, and identifying the door knocking sound;
4) the main control MCU module triggers the buzzer to sound and alarm.
Further, in the step 3), the step of detecting and recognizing the knock is as follows,
3.1) calculating real-time sound wave energy, and judging as a sound pulse when the energy of the current frame is higher than a set decibel and is a peak value on a time line;
3.2) if a pulse is encountered, buffering the data of the next 3 seconds;
3.3) analyzing whether other peak pulses exist in the 3-second data, if so, indicating that the pulses can be extracted, calculating the time intervals of the peak pulses, and if not, indicating that the pulses cannot be extracted, returning to 3.1);
3.4) judging as knocking when the time interval of the peak values is more than the set millisecond, and returning to 3.1) if the time interval of the peak values is not less than the set millisecond.
Preferably, in the 3.1), the set decibel is 60 decibels. Of course, other values are possible.
In the 3.3), the energy of the peak pulse is higher than 60 db. Of course, other values are possible.
In the above 3.4), 100 msec is set. Of course, other values are possible.
The invention has the following beneficial effects: the structure is simplified, and the failure rate is reduced.
Drawings
Fig. 1 is a binary configuration diagram of a conventional doorbell.
Fig. 2 is a view of a usage scenario of the present invention, wherein 1 is a door, 2 is a doorbell that does not require a button, and 3 is a wall.
Fig. 3 is a functional block diagram of the present invention.
Fig. 4 is a flow chart of the operation of the present invention.
Fig. 5 is a flowchart for recognizing a knock by a surface acoustic wave.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
Referring to fig. 2 to 5, the doorbell without a button comprises a battery module, a contact microphone, a main control MCU chip and a buzzer, wherein the battery module is connected with the contact microphone, the main control MCU chip and the buzzer, the contact microphone is connected with the main control MCU chip, and the main control MCU chip is connected with the buzzer; the contact microphone is a sensor which can receive solid conducted sound but is insensitive to air conducted sound, is in an open state when powered and is used for monitoring solid surface sound waves transmitted by a wall surface or a door surface in real time; the main control MCU module analyzes the collected sound wave data, filters the sound wave data which accidentally touches the door face in a wrong way or blows the door face by wind, and the hitting sound of closing the door and opening the door, recognizes the hitting sound pulse with short interval and lasting two or three times, recognizes the hitting sound pulse as the hitting sound, and then starts the buzzer to give an alarm.
A realization method of a doorbell without a button comprises the following steps:
1) the contact microphone is started to be in a working state and keeps in contact with a door surface or a wall surface;
2) the contact microphone collects solid surface acoustic wave data;
3) analyzing the sound wave data by the master control MCU module, and identifying the door knocking sound;
4) the main control MCU module triggers the buzzer to sound and alarm.
Further, in a home environment, when a door is knocked by a non-visitor, the door may be touched or knocked, namely, the door is opened or closed by wind, the body of a person or a pet, and the like.
Specifically, through the analysis of the surface acoustic wave data, an algorithm block diagram is shown in fig. 5;
in the step 3), the step of detecting and recognizing the knock is as follows,
3.1) calculating real-time sound wave energy, and judging as a sound pulse when the energy of the current frame is higher than 60 decibels and is a peak value on a time line;
3.2) if a pulse is encountered, buffering the data of the next 3 seconds;
3.3) analyzing whether other peak pulses exist in the 3-second data, wherein the energy of the peak pulses is higher than 60 dB, if so, indicating that the pulses can be extracted, calculating the time interval of the peak pulses, and if not, indicating that the pulses cannot be extracted, returning to 3.1);
3.4) judging as knocking when the time interval of the peak values is more than 100 milliseconds, and returning to 3.1) if the time interval of the peak values is not less than 100 milliseconds.
The embodiment provides a doorbell design without a button, only comprises an alarm device, and is simple in structure and simple and convenient to install. The mechanism for triggering the alarm device is still that the door is knocked by traditional fingers (or the door surface is optionally lightly knocked), and the alarm device is triggered to make a ding-dong sound no matter how loud the door surface is knocked. Fig. 2 illustrates a usage scenario of a doorbell.
The device of this embodiment may be mounted on the face of the door behind the door, or on a wall surface slightly remote from the door. The structure of the device is shown in fig. 3.
The embodiments described in this specification are merely illustrative of implementations of the inventive concepts, which are intended for purposes of illustration only. The scope of the present invention should not be construed as being limited to the particular forms set forth in the examples, but rather as being defined by the claims and the equivalents thereof which can occur to those skilled in the art upon consideration of the present inventive concept.

Claims (6)

1.一种不需要按钮的门铃，其特征在于，所述门铃包括电池模块、接触式麦克风、主控MCU芯片和蜂鸣器，所述电池模块与接触式麦克风、主控MCU芯片和蜂鸣器连接，所述接触式麦克风与主控MCU芯片连接，所述主控MCU芯片与蜂鸣器连接；所述接触式麦克风是能够接收固体传导声音，却对空气传导声音不敏感的传感器，接触式麦克风在供电时处于开启状态，用于实时监听墙面或门面传递的固体表面声波；所述主控MCU模块分析采集的声波数据，滤除偶尔误触碰门面，或者风吹门面，以及关门开门的碰击声，识别出间隔短促、持续两三下的敲击声脉冲，将其识别为敲门声，然后出发蜂鸣器报警。1. a doorbell that does not need a button, is characterized in that, described doorbell comprises battery module, contact microphone, main control MCU chip and buzzer, described battery module and contact microphone, main control MCU chip and buzzer The contact microphone is connected to the main control MCU chip, and the main control MCU chip is connected to the buzzer; the contact microphone is a sensor that can receive solid conduction sound but is insensitive to air conduction sound. The main control MCU module analyzes the collected sound wave data, filters out occasional accidental touches on the facade, or the wind blows the facade, and closes the door The knocking sound of the door is recognized, and the knocking sound pulses with short intervals and lasting two or three times are recognized as knocking on the door, and then the buzzer alarm is set off. 2.一种如权利要求1所述的不需要按钮的门铃的实现方法，其特征在于，所述方法包括以下步骤：2. the realization method of the doorbell that does not need button as claimed in claim 1, is characterized in that, described method comprises the following steps: 1).接触式麦克风开启处于工作状态，并与门面或墙面保持接触；1). The contact microphone is turned on and in working state, and keeps in contact with the facade or wall; 2).接触式麦克风采集固体表面声波数据；2). The contact microphone collects the solid surface acoustic wave data; 3).主控MCU模块分析声波数据，识别出敲门声；3). The main control MCU module analyzes the sound wave data and recognizes the knock on the door; 4).主控MCU模块触发蜂鸣器发声报警。4). The main control MCU module triggers the buzzer to sound an alarm. 3.如权利要求2所述的不需要按钮的门铃的实现方法，其特征在于，所述步骤3)中，检测识别敲门声的步骤如下，3. the realization method of the doorbell that does not need button as claimed in claim 2 is characterized in that, in described step 3), the step of detection and recognition knock is as follows, 3.1)计算实时的声波能量，当当前帧能量高于设定分贝，且是时间线上的峰值，则判定为声脉冲；3.1) Calculate the real-time sound wave energy. When the current frame energy is higher than the set decibel and is the peak value on the timeline, it is determined as a sound pulse; 3.2)如果碰到一个脉冲，则缓存后面3秒的数据；3.2) If a pulse is encountered, the data for the next 3 seconds is cached; 3.3)分析这3秒数据里是否还有其它峰值脉冲，如果有，说明能提取出脉冲，则计算这些峰值的时间间隔，如果没有，说明提取不出脉冲，则返回3.1)；3.3) Analyze whether there are other peak pulses in the 3-second data. If so, it means that pulses can be extracted, then calculate the time interval of these peaks. If not, it means that no pulses can be extracted, then return to 3.1); 3.4)当这些峰值数时间间隔在设定毫秒以上时，判断为敲门声，否则返回3.1)。3.4) When the time interval of these peaks is more than set milliseconds, it is judged as knocking, otherwise, return to 3.1). 4.如权利要求3所述的不需要按钮的门铃的实现方法，其特征在于，所述3.1)中，设定分贝为60分贝。4. The method for realizing a doorbell that does not require a button according to claim 3, wherein, in said 3.1), the set decibel is 60 decibels. 5.如权利要求3所述的不需要按钮的门铃的实现方法，其特征在于，所述3.3)中，所述峰值脉冲的能量高于60分贝。5 . The method for realizing a doorbell without a button according to claim 3 , wherein, in 3.3), the energy of the peak pulse is higher than 60 decibels. 6 . 6.如权利要求3所述的不需要按钮的门铃的实现方法，其特征在于，所述3.4)中，设定毫秒为100毫秒。6. The method for realizing a doorbell that does not require a button as claimed in claim 3, wherein in said 3.4), the set millisecond is 100 milliseconds.
CN202110782413.XA 2021-07-12 2021-07-12 Doorbell without button and implementation method thereof Pending CN113689637A (en)

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1450502A (en) * 2002-04-07 2003-10-22 厦门市南孚贸易有限公司 Intelligent theft-proof door bell
CN201489617U (en) * 2009-08-18 2010-05-26 李智新 Vibration type electronic music doorbell
CN102419880A (en) * 2010-09-14 2012-04-18 上海科斗电子科技有限公司 Doorbell triggered by knock sound
CN105205953A (en) * 2014-06-13 2015-12-30 上海本星电子科技有限公司 Knock sound identification doorbell
CN105225371A (en) * 2014-06-13 2016-01-06 上海科斗电子科技有限公司 To knock at the door sound recognitiion gate bell waken system
CN205100820U (en) * 2015-11-03 2016-03-23 上海翰创规划建筑设计有限公司 Knock at door intelligence door of voice recognition system of setting
US20180197383A1 (en) * 2017-01-11 2018-07-12 Ring Inc. Doorbell sound output device controllers, doorbell switches, and associated systems and methods
CN208369751U (en) * 2018-05-24 2019-01-11 深圳宇盾时代电子有限公司 A kind of recognition of face intelligent doorbell

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1450502A (en) * 2002-04-07 2003-10-22 厦门市南孚贸易有限公司 Intelligent theft-proof door bell
CN201489617U (en) * 2009-08-18 2010-05-26 李智新 Vibration type electronic music doorbell
CN102419880A (en) * 2010-09-14 2012-04-18 上海科斗电子科技有限公司 Doorbell triggered by knock sound
CN105205953A (en) * 2014-06-13 2015-12-30 上海本星电子科技有限公司 Knock sound identification doorbell
CN105225371A (en) * 2014-06-13 2016-01-06 上海科斗电子科技有限公司 To knock at the door sound recognitiion gate bell waken system
CN205100820U (en) * 2015-11-03 2016-03-23 上海翰创规划建筑设计有限公司 Knock at door intelligence door of voice recognition system of setting
US20180197383A1 (en) * 2017-01-11 2018-07-12 Ring Inc. Doorbell sound output device controllers, doorbell switches, and associated systems and methods
CN208369751U (en) * 2018-05-24 2019-01-11 深圳宇盾时代电子有限公司 A kind of recognition of face intelligent doorbell

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