WO2017121110A1 - 一种具有主动预警功能的新能源汽车行人声音警示装置 - Google Patents

一种具有主动预警功能的新能源汽车行人声音警示装置 Download PDF

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Publication number
WO2017121110A1
WO2017121110A1 PCT/CN2016/095076 CN2016095076W WO2017121110A1 WO 2017121110 A1 WO2017121110 A1 WO 2017121110A1 CN 2016095076 W CN2016095076 W CN 2016095076W WO 2017121110 A1 WO2017121110 A1 WO 2017121110A1
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Prior art keywords
module
sound
resistor
signal
main control
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PCT/CN2016/095076
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English (en)
French (fr)
Inventor
黄海阳
吴鹏
Original Assignee
吉林航盛电子有限公司
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Application filed by 吉林航盛电子有限公司 filed Critical 吉林航盛电子有限公司
Priority to DE112016006219.2T priority Critical patent/DE112016006219T5/de
Priority to EP16884664.0A priority patent/EP3404640B1/de
Publication of WO2017121110A1 publication Critical patent/WO2017121110A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q5/00—Arrangement or adaptation of acoustic signal devices
    • B60Q5/005—Arrangement or adaptation of acoustic signal devices automatically actuated
    • B60Q5/008—Arrangement or adaptation of acoustic signal devices automatically actuated for signaling silent vehicles, e.g. for warning that a hybrid or electric vehicle is approaching
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B60L3/0007—Measures or means for preventing or attenuating collisions
    • B60L3/0015—Prevention of collisions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q5/00—Arrangement or adaptation of acoustic signal devices
    • B60Q5/005—Arrangement or adaptation of acoustic signal devices automatically actuated
    • B60Q5/006—Arrangement or adaptation of acoustic signal devices automatically actuated indicating risk of collision between vehicles or with pedestrians
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/16—Anti-collision systems
    • G08G1/166—Anti-collision systems for active traffic, e.g. moving vehicles, pedestrians, bikes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2270/00—Problem solutions or means not otherwise provided for
    • B60L2270/42—Means to improve acoustic vehicle detection by humans

Definitions

  • the invention relates to the technical field of sound alarms, in particular to a new energy vehicle pedestrian sound warning device with an active early warning function.
  • a new energy vehicle is a vehicle with advanced technology, new technology and new structure, which uses unconventional vehicle fuel as a power source or uses conventional vehicle fuel and adopts a new vehicle power device. With the rise of new energy vehicles, the related technologies are gradually developing. The new energy vehicle is driven by a new type of engine. The sound it emits is very small and is overwhelmed by environmental noise.
  • one technical problem to be solved by the present invention is to provide a new energy vehicle pedestrian sound warning device with an active early warning function, which can effectively solve the above problems.
  • a new energy vehicle pedestrian sound warning device with an active early warning function comprising: a main control module, a voice chip module, a power amplifier module and an infrared detection module; the main control module is respectively connected with the voice chip module and the infrared detection module
  • the voice chip module is connected to the power amplifier module; the infrared detection module detects whether there is a person around the vehicle and outputs an infrared detection signal, and the main control module receives the infrared detection signal and according to the infrared detection signal
  • the voice chip module sends a play command, and the voice chip module sends a sound signal to the power amplifier module, and the power amplifier module drives the speaker to play the sound signal.
  • an ambient sound signal collecting module further comprising: an ambient sound signal collecting module; the main control module is connected to the ambient sound signal collecting module; and the ambient sound signal collecting module is to sound pressure signal of the external environment sound Sending to the main control module, the main control module determines the volume of playing the sound signal according to the sound pressure signal, and controls the output power of the power amplifier module based on the volume.
  • a segment memory knob further comprising: a segment memory knob; the segment memory knob is electrically connected to the main control module.
  • a CAN transceiver module further comprising: a CAN transceiver module; the main control module is connected to the control device of the new energy vehicle through the CAN transceiver module, and receives the status sent by the control device of the new energy vehicle
  • the signal includes: a motor speed and a vehicle speed signal; the main control module generates driving data based on the status signal, and transmits the driving data to the voice chip module, and the voice chip module generates a vehicle based on the driving data Engine sound signal.
  • an anti-blasting circuit module comprising: a diode, a first resistor, a second resistor, an NPN transistor, a first polarity capacitor, a third resistor, a fourth resistor; one end of the fourth resistor is grounded, and the other end is connected to an emitter of the NPN transistor; the first polarity capacitor and the third resistor are connected in parallel to form a first sub-circuit; One end of the first resistor is connected to one end of the second resistor to form a first connection point; one end of the diode is connected to the power supply module or the power amplifier module, and the other end of the diode is connected to the first connection point The other end of the second resistor is connected to the collector of the NPN transistor; one end of the first sub-circuit is connected to the other end of the first resistor, and the connection point is the base of the NPN transistor a pole connection; a second end of the first sub-circuit is connected
  • the main control module controls the volume adjustment circuit module to generate a PWM signal having a square wave, wherein the PWM signal passes the
  • the RC shaping circuit module is shaped and sent to the power amplifier module to adjust the volume;
  • the RC shaping circuit module includes: a fifth resistor, a sixth resistor, a second polarity-free capacitor, and a third non-polar capacitor; a fifth resistor is connected in series with the second non-polarity capacitor, one end of the fifth resistor is connected to the volume adjustment circuit module, one end of the second non-polar capacitor is grounded; the sixth resistor and the third non-polarity a capacitor is connected in series, one end of the sixth resistor is connected to a connection line between the fifth resistor and the second non-polar capacitor, one end of the third non-polar capacitor is grounded; and one end of the second output line is connected On the connection line between the sixth resistor and the third polarity-free capacitor, the other end is
  • a digital filter further comprising: a digital filter;
  • the set module collects the sound pressure signal of the external environment sound in real time and sends it to the main control module; the main control module sends the sound pressure signal to the digital filter for periodic sampling, and for each sample Quantization and encoding are performed to generate a digital signal, which is converted into an analog signal, and the analog signal is processed and sound pressure information is obtained.
  • the main control module monitors a control pin BUSY of the voice chip module, determines a time of a sound file currently played by the voice chip module, and determines that the sound file is played. When the remaining time reaches the preset time threshold, the main control module controls to send a control instruction for playing the next sound file to the voice chip module.
  • the ambient sound signal acquisition module includes: a microphone amplifier, a fourth capacitor, a fifth capacitor, and a seventh resistor; and the signal collected by the microphone passes through the fourth capacitor through the input line,
  • the seventh resistor is connected to the IN pin of the microphone amplifier and the BIAS pin, wherein the IN pin is a signal input pin, the BIAS pin is a voltage compensation pin; and the SHND pin of the microphone amplifier passes through The fifth capacitor is grounded, and a voltage is introduced on the connection line between the SHND pin and the fifth capacitor, the GND pin of the microphone amplifier is grounded, and the VCC pin of the microphone amplifier is connected to the voltage,
  • the OUT pin of the microphone amplifier outputs a large signal to the main control module.
  • the main control module and the voice chip module are connected through an SPI serial bus.
  • a varistor is disposed in a connection line between the power supply module and the voice chip module and the power amplifier module.
  • the utility model relates to a new energy vehicle pedestrian sound warning device with an active early warning function, which is provided with an infrared detecting module and an environmental sound signal collecting module, which can actively determine whether a sound needs to be emitted, can completely close and reduce the pedestrian warning sound, and solves the problem. Regardless of whether there is a pedestrian in front or not, the warning sound is always issued, and the warning sound can be sounded in real time according to the magnitude of the ambient sound pressure.
  • the download interface allows the user to download the selected sound and has a function such as a section memory function knob. , to improve the degree of intelligence.
  • FIG. 1 is a schematic diagram showing the circuit structure of an embodiment of a pedestrian electric sound warning device for a new energy vehicle with an active early warning function according to the present invention
  • FIG. 2 is a workflow diagram of an embodiment of a new energy vehicle pedestrian sound warning device with an active early warning function according to the present invention.
  • FIG. 3 is a schematic diagram of an anti-blowout sound circuit of an embodiment of a new energy vehicle pedestrian sound warning device with an active early warning function according to the present invention
  • FIG. 4 is a schematic diagram of a PWM volume shaping circuit of an embodiment of a new energy vehicle pedestrian sound warning device with an active early warning function according to the present invention
  • FIG. 5 is a schematic diagram of a microphone amplifying circuit in an ambient sound signal collecting module of an embodiment of a new energy vehicle pedestrian sound warning device with an active early warning function according to the present invention.
  • the present invention provides a new energy vehicle pedestrian sound warning device with an active early warning function, comprising: a main control module 21, a voice chip module 22, a power amplifier module 23, an infrared detection module 28, and an ambient sound.
  • Signal acquisition module 26 The main control module 21 sends a play command to the voice chip module 22, and the voice chip module 22 transmits a sound signal to the power amplifier module 23, and the power amplifier module 23 drives the speaker 27 to play the sound signal.
  • the infrared detecting module 28 detects whether there is a person around the vehicle and outputs an infrared detecting signal.
  • the main control module 21 receives the infrared detecting signal and sends a play command to the voice chip module 22 according to the infrared detecting signal, and the voice chip module 22 sends a sound signal to the power amplifier module 23.
  • the speaker 27 is driven by the power amplifier module 23 to play a sound signal.
  • the new energy vehicle pedestrian sound warning device with active early warning function in the above embodiment is equipped with an infrared detecting module in front of it, and the infrared detecting module has an infrared probe interface, and the detecting head can detect the infrared characteristic of the human body characteristic based on the pyroelectric sensor.
  • the strength of the 10um signal is used to determine whether a pedestrian has passed and outputs an infrared detection signal.
  • the pyroelectric will generate a corresponding voltage signal, that is, an infrared detecting signal, and the voltage signal is denoised and purified by the filtering circuit, and sent to the AD collecting part to collect the pyroelectric power.
  • the incoming analog signal is converted into a digital signal, and the digital signal enters the main control module 21, thereby judging that a pedestrian appears in front and the control emits a warning tone.
  • the section memory knob 29 is electrically connected to the main control module 21.
  • the user touches the section memory knob 29 to preset the warning sound, and can control the corresponding volume by rotating the section memory knob 29. size.
  • the user touches the road segment memory knob 29 to memorize the car environment.
  • the main control module 21 according to the preset volume.
  • the sound is sized to avoid disturbing people and sound pollution.
  • a download interface is installed at the front end of the pedestrian alarm device of the new energy vehicle of the present invention, and the user can use this interface to complete the downloading sound.
  • the main control module can be implemented as a microprocessor, a single chip microcomputer, a single board machine, and the like.
  • the main control module 21 and the voice chip module 22 are connected via an SPI serial bus or the like.
  • a varistor is disposed in a connection line between the power supply module 24 and the voice chip module and the power amplifier module.
  • the ambient sound signal acquisition module 26 transmits the sound pressure signal of the ambient sound to the main control module 21, and the main control module 21 determines the volume of the sound signal to be played based on the sound pressure signal, and controls the output power of the power amplifier module 23 based on the volume.
  • the sound pressure signal of the external environment sound it can be judged whether the surrounding sound is noisy. If the surrounding noise is high or the decibel is high, the volume is increased. If the surrounding is very quiet or the decibel is small, the volume is reduced to avoid disturbing people.
  • the new energy vehicle pedestrian sound warning device with active early warning function can monitor the sound pressure level of the environment in real time, and determine the sound pressure level to be emitted by the new energy vehicle pedestrian sound warning device according to the surrounding sound pressure level, and then around When the average sound pressure level is small, a small sound pressure value is issued to complete the pedestrian warning function.
  • the new energy vehicle pedestrian sound warning device with active early warning function can avoid the pedestrian warning being passively issued, and the sound volume of the sound pressure can be controlled according to the dynamic pressure feedback of the environment in which the vehicle travels, such as at a noisy intersection.
  • the quiet cell in the night can be properly adjusted to the low volume, with infrared detection to detect the presence of pedestrians, if a pedestrian is detected, a warning tone is sounded, otherwise the warning tone is stopped.
  • the main control module 21 is connected to the control device 31 of the new energy vehicle through the CAN transceiver module 25, and receives the status signal transmitted by the control device 31 of the new energy vehicle, including: motor speed and vehicle speed signal.
  • the main control module 21 generates driving data based on the status signal, and transmits the driving data to the voice chip module 22.
  • the voice chip module 22 generates an automobile engine sound signal based on the driving data, for example, can simulate different engines of the automobile at a speed of 40 kilometers and 80 kilometers per hour. the sound of.
  • the new energy vehicle pedestrian sound warning device with active early warning function acquires the current state of the automobile through the CAN bus, and sends a corresponding warning sound according to the current state, and can actively issue an alarm to find that the line talent starts to alarm, and can also target The distance of the pedestrian has a corresponding sound that is planned.
  • an anti-blasting circuit module is provided in the alerting device.
  • the anti-blasting circuit module includes a diode 1, a first resistor 2, a second resistor 3, an NPN transistor 4, a first polarity capacitor 5, a third resistor 6, and a fourth resistor 7.
  • the fourth resistor 7 is grounded at one end and connected to the emitter of the NPN transistor 4 at the other end.
  • the first polar capacitor 5 and the third resistor 6 are connected in parallel to form a first sub-circuit.
  • One end of the first resistor 2 and one end of the second resistor 3 Connected to form a first connection point.
  • One end of the diode 1 is connected to the power supply module or the power amplifier module 23, and the other end of the diode 1 is connected to the first connection point.
  • the other end of the second resistor 3 is connected to the collector of the NPN transistor 4.
  • One end of the first sub-circuit is connected to the other end of the first resistor 2, and this connection point is connected to the base of the NPN-type transistor 4.
  • the second end of the first sub-circuit is connected to the connection line of the fourth resistor 7 for grounding, and one end of the first current output line is connected to the connection line between the fourth resistor 7 and the emitter of the NPN transistor 4, The other end of the first current output line is connected to the speaker.
  • the current enters through one end of the diode 1 and is used to charge the first polar capacitor 5 after being limited by the first resistor 2.
  • the NPN transistor 4 exhibits a high resistance state, when the first polarity capacitor 5 When the voltage reaches the threshold, the NPN transistor 4 enters an on state.
  • the pedestrian warning of the new energy vehicle is highly compliant with the state of the vehicle and the state of the sound, often because of the opportunity to give the speaker a pulse signal, which results in a momentary plosive sound to the speaker, affecting system quality.
  • the anti-blasting sound circuit module is activated, and the hardware circuit delay and the power-on-time instant bleeder circuit are adopted in eliminating the broken sound of the speaker, and the diode, the high-resistance capacitor and the triode combination circuit are used to suppress the influence of the voltage of the starting instant on the system.
  • the system power supply is controlled by powering the POWER pin, and after 5 current limit, the battery is charged. At this time, 4 is in a high-resistance state, and the Remote is low. When the charging voltage reaches 0.7 volts, 4 enters conduction, and 3, 7 divides the POWER voltage. The Pwer voltage at which the Remote voltage exhibits 99/100 appears high.
  • a volume adjustment circuit module and an RC shaping circuit module are provided in the alerting device.
  • the main control module controls the volume adjustment circuit module to generate a PWM signal having a square wave, and the PWM signal is shaped by the RC shaping circuit module and sent to the power amplifier module to adjust the volume.
  • the adjustment of the volume of the sound can be adjusted by means of a PWM synthesis algorithm, involving a processing circuit that converts the PWM into an average DC voltage.
  • the volume adjustment adopts PWM mode to control the analog voltage output of the power output control pin of the power amplifier chip, and the resolution can reach 65536 gear positions.
  • the square wave signal of the PWM signal is generated and generates an approximate DC level through the RC shaping circuit module. Similar to the "potentiometer knob" voltage regulation method, a subdivision voltage of 1/65535 is generated.
  • the RC shaping circuit module includes: a fifth resistor 8, a sixth resistor 9, a second polarity-free capacitor 10, and a third polarity-free capacitor 11.
  • the fifth resistor 8 is connected in series with the second polarity-free capacitor 10.
  • One end of the fifth resistor 8 is connected to the volume adjustment circuit module, and one end of the second polarity-free capacitor 10 is grounded.
  • the sixth resistor 9 and the third non-polarity capacitor 11 are connected in series, one end of the sixth resistor 9 is connected to the connection line between the fifth resistor 8 and the second non-polarity capacitor 10, and one end of the third non-polarity capacitor 11 is grounded; One end of the two output lines is connected On the connection line between the sixth resistor 9 and the third non-polarity capacitor 11, the other end is connected to the power amplifier module.
  • a digital filter is provided in the alerting device.
  • the ambient sound signal acquisition module 26 collects the sound pressure signal of the ambient environment sound in real time and sends it to the main control module 21.
  • the main control module 21 sends the sound pressure signal to the digital filter for periodic sampling, and quantizes and encodes each sample to generate a digital signal, converts the digital signal into an analog signal, processes the analog signal and acquires the sound. Pressure information.
  • a circuit for collecting sound and sound by a microphone or a microphone is added, and the collected voltage is transmitted to the AD terminal of the main control device (microprocessor) for digital filtering to obtain the voltage of the sound pressure of the specific frequency signal, based on the voltage value. Control the sound pressure value to be emitted.
  • the AD port of the main control device receives the sound field voltage value of the external environment. Since the sound pressure of the environmental noise is mostly concentrated at a certain frequency, the digital filtering algorithm is performed internally by the main control device (microprocessor). Or set a separate digital filter to use the sound field of the sound of a specific frequency as the feedback reference voltage, and control the magnitude of the sound pressure to be emitted according to the voltage value.
  • a bandpass type digital filter is selected, and a specific required frequency range is planned by an oscilloscope to obtain a desired frequency range, and then a specific filter model is adopted by matlab software simulation according to the frequency range.
  • the digital filter algorithm determined by matlab is implemented on a CPU or other hardware, such as CPLD, to generate a digital filter.
  • CPLD CPLD
  • the voice chip module 22 includes a voice chip YMF827 and the like.
  • the main control module 21 monitors the control pin BUSY of the voice chip module 22. Determine the time of the sound file played by the current voice chip module. When it is determined that the remaining time of the sound file playback reaches the preset time threshold, the main control module 21 controls to send a control instruction to the voice chip module 22 to play the next sound file.
  • the control pin BUSY of the voice chip YMF827 is monitored, and the oscilloscope mode is used to identify the time of the sound switching.
  • the play command is issued at this time in advance, that is, the next play command is issued before the last sound is stopped. Complete the sound switch without interruption. For example, the sound is played back in a loop using a sound. When the sound is switched, the sound will be broken.
  • the sound switching command is activated in advance according to the preset time.
  • the sound switching command is executed, thereby avoiding the sound switching due to the command execution delay. For example, when the sound is played, there is an interval of more than 20 milliseconds from the monitoring to the BUSY from high level to low level to the last sound playback. This interval is the main cause of the sound break. Record the time required for the sound to switch. This time is in milliseconds. After recording this time, set this time to X and write it to the EEPROM of the CPU for saving. When it is necessary to switch, it is only necessary to release the next sound playback command X milliseconds before the playback of the sound file is stopped.
  • the ambient sound signal acquisition module includes a microphone amplifier MAX9812LM1, a fourth capacitor 16, a fifth capacitor 17, and a seventh resistor 18.
  • the signal collected by the microphone 15 is connected to the IN pin and the BIAS pin of the microphone amplifier MAX9812L through the input capacitor through the fourth capacitor 16 and the seventh resistor 18, wherein the IN pin is a signal input pin, and the BIAS pin is voltage compensated. Pin.
  • the SHND pin of the microphone amplifier MAX9812L is grounded through the fifth capacitor 17, and the voltage is introduced on the connection line between the SHND pin and the fifth capacitor 17, the GND pin of the microphone amplifier MAX9812L is grounded, and the VCC pin of the microphone amplifier MAX9812L is connected.
  • the OUT pin of the microphone amplifier MAX9812L outputs a large signal to the main control module 21.
  • the main control module 21 can obtain the voltage value of the sound at a frequency of about 1000 Hz to feedback the sound pressure value for setting the warning sound.
  • the new energy vehicle pedestrian sound warning device with active early warning function provided in the above embodiment is equipped with an infrared detecting module and an environmental sound signal collecting module, which can actively determine whether a sound needs to be emitted, and can completely close and reduce the pedestrian warning sound.
  • the utility model solves the problem that the pedestrian warning always emits a sound regardless of whether there is a pedestrian in front, and the volume can be adjusted according to the magnitude of the ambient sound pressure, and has a download interface, and the user can download the selected sound and has a function of a segment memory function knob. Increased intelligence.
  • the methods and systems of the present invention may be implemented in a number of ways.
  • the methods and systems of the present invention can be implemented in software, hardware, firmware, or any combination of software, hardware, and firmware.
  • the above-described sequence of steps for the method is for illustrative purposes only, and the steps of the method of the present invention are not limited to the order specifically described above unless otherwise specifically stated.
  • the invention may also be embodied as a program recorded in a recording medium, the program comprising machine readable instructions for implementing the method according to the invention.
  • the invention also covers a recording medium storing a program for performing the method according to the invention.
  • a fixed connection can be understood as: a detachable fixed connection (for example, using bolts or screws), or It is understood as: non-detachable fixed joints (such as riveting, welding), of course, the mutual fixed connection can also be replaced by a one-piece structure (for example, manufactured by integral casting process) (except that the integral forming process is obviously not available).
  • any of the components provided by the present invention may be assembled from a plurality of separate components or may be a separate component manufactured by an integral forming process.

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Abstract

一种具有主动预警功能的新能源汽车行人声音警示装置，包括：红外探测模块（28）检测车辆周边是否有人并输出红外探测信号，主控模块（21）接收到红外探测信号并根据红外探测信号向语音芯片模块（22）发送播放指令，语音芯片模块（22）向功率放大器模块（23）发送声音信号，由功率放大器模块(23)驱动扬声器（27）播放声音信号。该警示装置配有红外探测模块（28）和环境声音信号采集模块（26），可以主动判断是否需要发出声音，能够最大限度的关闭和减小行人警示音，解决了行人警示一直发出声音而无论前方是否有行人的问题，用户可以下载所选择的声音，并带有路段记忆功能旋钮（29）等功能，提高了智能化程度。

Description

一种具有主动预警功能的新能源汽车行人声音警示装置 技术领域
本发明涉及声音报警技术领域，尤其涉及一种具有主动预警功能的新能源汽车行人声音警示装置。
背景技术
现代社会，汽车已经成为人们生活中必不可少的工具，私人汽车和公交汽车方便了人们的出行，汽车正在取代自行车成为人们生活中重要的交通工具。近年来，随着全球空气污染的日渐增强，各国越来越重视环境的保护和空气污染的预防及治理，汽车尾气的排放被认为是空气污染的主要来源之一。新能源汽车是指采用非常规车用燃料作为动力来源或使用常规车用燃料、采用新型车载动力装置，形成的技术原理先进、具有新技术、新结构的汽车。随着新能源汽车的兴起，与其相关的技术也在逐渐的发展。新能源汽车采用新型发动机驱动，它所发出的声音很微小，并被环境噪声所淹没，这样导致汽车处于一个“静音状态”，即存在新能源汽车的行驶过程中声音较小，不易被行人发现，容易造成交通事故的问题。目前市场上针对新能源汽车行驶时声音过低的情况做出的行人警示系统，发声方式采用被动方式，汽车只要在行驶无论前方是否有人，均会发出行人警示音，这样就会导致在无行人的情况下对环境的噪声污染，对于行人的远近特定警示音的需求无法响应。
发明内容
有鉴于此，本发明要解决的一个技术问题是提供一种具有主动预警功能的新能源汽车行人声音警示装置，能够有效地解决上述的问题。
一种具有主动预警功能的新能源汽车行人声音警示装置，包括:主控模块、语音芯片模块、功率放大器模块、红外探测模块；所述主控模块分别与所述语音芯片模块和红外探测模块连接；所述语音芯片模块和所述功率放大器模块连接；所述红外探测模块检测车辆周边是否有人并输出红外探测信号，所述主控模块接收到所述红外探测信号并根据所述红外探测信号向所述语音芯片模块发送播放指令，所述语音芯片模块向所述功率放大器模块发送声音信号，由所述功率放大器模块驱动扬声器播放所述声音信号。
根据本发明的一个实施例，进一步的，还包括：环境声音信号采集模块；所述主控模块与所述环境声音信号采集模块连接；所述环境声音信号采集模块将外界环境声音的声压信号发送到所述主控模块，所述主控模块根据所述声压信号确定播放所述声音信号的音量，并基于所述音量控制所述功率放大器模块的输出功率。
根据本发明的一个实施例，进一步的，还包括：路段记忆旋钮；所述路段记忆旋钮与所述主控模块电连接。
根据本发明的一个实施例，进一步的，还包括：CAN收发器模块；所述主控模块通过所述CAN收发器模块与新能源汽车的控制装置连接，接收新能源汽车的控制装置发送的状态信号，包括：电机转速和车速信号；所述主控模块基于所述状态信号生成行车数据，并将所述行车数据发送到所述语音芯片模块，所述语音芯片模块基于所述行车数据生成汽车引擎声音信号。
根据本发明的一个实施例，进一步的，包括：防爆破音电路模块；所述防爆破音电路模块包括：二极管、第一电阻、第二电阻、NPN型三极管、第一有极性电容、第三电阻、第四电阻；所述第四电阻的一端接地，另一端与所述NPN型三极管的发射极连接；所述第一有极性电容和第三电阻并联，形成第一子电路；所述第一电阻的一端和所述第二电阻的一端连接，形成第一连接点；所述二极管的一端与供电模块或功率放大器模块连接，所述二极管的另一端与所述第一连接点连接；所述第二电阻的另一端与所述NPN型三极管的集电极连接；所述第一子电路的一端与所述第一电阻的另一端连接，此连接点与所述NPN型三极管的基极连接；所述第一子电路的第二端连接在所述第四电阻用于接地的连接线路上，第一电流输出线的一端连接在所述第四电阻与所述NPN型三极管的发射极之间的连接线路上，所述第一电流输出线的另一端与所述扬声器连接；其中，电流通过所述二极管的一端进入，通过所述第一电阻限流后用于给所述第一有极性电容进行充电，此时所述NPN型三极管呈现高阻状态，当所述第一有极性电容的电压达到阈值时，所述NPN型三极管进入导通状态。
根据本发明的一个实施例，进一步的，包括：音量调节电路模块和RC整形电路模块；所述主控模块控制所述音量调节电路模块生成具有方波的PWM信号，所述PWM信号通过所述RC整形电路模块进行整形后发送到所述功率放大器模块，进行音量的调节；所述RC整形电路模块包括：第五电阻、第六电阻、第二无极性电容、第三无极性电容；所述第五电阻与所述第二无极性电容串联，所述第五电阻的一端与所述音量调节电路模块连接，所述第二无极性电容的一端接地；所述第六电阻和第三无极性电容串联，所述第六电阻的一端连接在所述第五电阻与所述第二无极性电容之间的连接线路上，所述第三无极性电容的一端接地；第二输出线的一端连接在所述第六电阻和第三无极性电容之间的连接线路上，另一端与所述功率放大器模块连接。
根据本发明的一个实施例，进一步的，还包括：数字滤波器；所述环境声音信号采 集模块实时采集外界环境声音的声压信号并发送到所述主控模块；所述主控模块将所述声压信号发送到所述数字滤波器中进行周期性的采样,并对每个样本进行量化和编码生成数字信号,将所述数字信号转换为模拟信号，对此模拟信号进行处理并获取声压信息。
根据本发明的一个实施例，进一步的，所述主控模块监控所述语音芯片模块的控制引脚BUSY，判断当前所述语音芯片模块播放的声音文件的时间；当判断所述声音文件播放的剩余时间达到预设的时间阈值时，则所述主控模块控制向所述语音芯片模块发送播放下一个声音文件的控制指令。
根据本发明的一个实施例，进一步的，所述环境声音信号采集模块包括：麦克风放大器、第四电容、第五电容和第七电阻；麦克收集的信号通过输入线路分别通过所述第四电容、所述第七电阻与所述麦克风放大器的IN管脚、BIAS管脚连接，其中，IN引脚是信号输入引脚，BIAS引脚为电压补偿引脚；所述麦克风放大器的SHND管脚通过所述第五电容接地，并且在SHND管脚与所述第五电容之间的连接线路上引入电压，所述麦克风放大器的GND管脚接地，所述麦克风放大器的VCC管脚接入所述电压，所述麦克风放大器的OUT管脚输出发大后的信号至所述主控模块。
根据本发明的一个实施例，进一步的，所述主控模块与所述语音芯片模块通过SPI串行总线连接。在供电模块与所述语音芯片模块、所述功率放大器模块的连接线路中设置压敏电阻。
本发明的具有主动预警功能的新能源汽车行人声音警示装置，配有红外检测模块和环境声音信号采集模块，可以主动判断是否需要发出声音，能够最大限度的关闭和减小行人警示音，解决了无论前方有无行人而一直发出警示声音的问题，并可以根据环境声压的大小来实时适当的发出警示音，具有下载接口，用户可以下载所选择的声音，并带有路段记忆功能旋钮等功能，提高了智能化程度。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作一简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1为本发明的具有主动预警功能的新能源汽车行人声音警示装置的一个实施例的电路结构示意图；
图2为本发明的具有主动预警功能的新能源汽车行人声音警示装置的一个实施例的工作流程 示意图；
图3为本发明的具有主动预警功能的新能源汽车行人声音警示装置的一个实施例的防爆破音电路示意图；
图4为本发明的具有主动预警功能的新能源汽车行人声音警示装置的一个实施例的PWM音量整形电路示意图；
图5为本发明的具有主动预警功能的新能源汽车行人声音警示装置的一个实施例的环境声音信号采集模块中的麦克放大电路示意图。
具体实施方式
下面参照附图对本发明进行更全面的描述，其中说明本发明的示例性实施例。下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。下面结合图和实施例对本发明的技术方案进行多方面的描述。
下文中的“第一”、“第二”等为描述上相区别，并没有其他特殊的含义。
如图1、2所示，本发明提供一种具有主动预警功能的新能源汽车行人声音警示装置，包括:主控模块21、语音芯片模块22、功率放大器模块23、红外探测模块28和环境声音信号采集模块26。主控模块21向语音芯片模块22发送播放指令，语音芯片模块22向功率放大器模块23发送声音信号，由功率放大器模块23驱动扬声器27播放声音信号。
红外探测模块28检测车辆周边是否有人并输出红外探测信号，主控模块21接收到红外探测信号并根据红外探测信号向语音芯片模块22发送播放指令，语音芯片模块22向功率放大器模块23发送声音信号，由功率放大器模块23驱动扬声器27播放声音信号。
上述实施例中的具有主动预警功能的新能源汽车行人声音警示装置，在其前方配有红外探测模块，红外探测模块具有红外探头接口，此探测头基于热释电传感器可以通过检测人体特征红外波段10um的信号的强弱来判断是否有行人经过，并且输出红外探测信号。
一旦有行人出现热释电传感器的接收范围，热释电就会产生对应的电压信号，即一种红外探测信号，电压信号经过滤波电路去噪提纯，输送到AD采集部分，把热释电采集来的模拟信号转换为数字信号，数字信号进入主控模块21，进而判断到前方有行人出现，控制发出警示音。
路段记忆旋钮29与主控模块21电连接，当汽车行驶到某一路段时，用户触动此路段记忆旋钮29可以预设警示音，并可以通过旋转路段记忆旋钮29的方式控制其对应音量的 大小。例如，行驶在高速公路上时，用户触动此路段记忆旋钮29记忆此汽车环境，当用户以后再次经过此路段时，如果红外探测模块28没有探测到行人，主控模块21会根据预设的音量大小进行发声，避免了扰民和声音污染。在本发明的新能源汽车行人声音警示装置的前端安装有下载接口，用户可以用此接口完成下载声音。
主控模块可以实现为微处理器、单片机、单板机等。主控模块21与语音芯片模块22通过SPI串行总线等连接。在供电模块24与语音芯片模块、功率放大器模块的连接线路中设置压敏电阻。
环境声音信号采集模块26将外界环境声音的声压信号发送到主控模块21，主控模块21根据声压信号确定播放声音信号的音量，并基于音量控制功率放大器模块23的输出功率。通过外界环境声音的声压信号可以判断周边的声音是否嘈杂，如果周边嘈杂或分贝很高则加大音量，如果周边很安静或分贝很小则减小音量，可以避免发生扰民等发生。
本发明的具有主动预警功能的新能源汽车行人声音警示装置，可以实时监测环境的声压水平，根据周围的声压水平决定新能源汽车行人声音警示装置本身所要发出的声压大小，进而在周围声压平均水平的较小时，发出较小的声压值就能完成行人警示作用。
本发明的具有主动预警功能的新能源汽车行人声音警示装置，可以避免一直被动地发出行人警示，根据车辆行驶的环境的声压动态的反馈控制播放的音量，如在吵杂的十字路口可以适当的提高音量，在夜晚安静的小区可以适当的调低音量，配有红外探测用来检测行人是否存在，如果检测到行人则发出警示音，反之则停止发出警示音。
在一个实施例中，主控模块21通过CAN收发器模块25与新能源汽车的控制装置31连接，接收新能源汽车的控制装置31发送的状态信号，包括：电机转速和车速信号等。主控模块21基于状态信号生成行车数据，并将行车数据发送到语音芯片模块22，语音芯片模块22基于行车数据生成汽车引擎声音信号，例如可以模拟汽车在40公里、80公里时速时的发动机不同的声音。
本发明的具有主动预警功能的新能源汽车行人声音警示装置，通过CAN总线获取汽车的当前状态，根据当前状态发出相对应的警示音，可以主动的发出报警即发现行人才开始报警，还可以针对行人的距离有规划的发出对应的声音。
在一个实施例中，在警示装置中设置防爆破音电路模块。如图3所示，防爆破音电路模块包括：二极管1、第一电阻2、第二电阻3、NPN型三极管4、第一有极性电容5、第三电阻6、第四电阻7。第四电阻7的一端接地，另一端与NPN型三极管4的发射极连接。第一有极性电容5和第三电阻6并联，形成第一子电路。第一电阻2的一端和第二电阻3的一端连 接，形成第一连接点。
二极管1的一端与供电模块或功率放大器模块23连接，二极管1的另一端与第一连接点连接。第二电阻3的另一端与NPN型三极管4的集电极连接。第一子电路的一端与第一电阻2的另一端连接，此连接点与NPN型三极管4的基极连接。
第一子电路的第二端连接在第四电阻7用于接地的连接线路上，第一电流输出线的一端连接在第四电阻7与NPN型三极管4的发射极之间的连接线路上，第一电流输出线的另一端与扬声器连接。其中，电流通过二极管1的一端进入，通过第一电阻2限流后用于给第一有极性电容5进行充电，此时NPN型三极管4呈现高阻状态，当第一有极性电容5的电压达到阈值时，NPN型三极管4进入导通状态。
在一个实施例中，新能源汽车的行人警示是满足车身状态和声音状态的高度切合，往往因为开机会给扬声器一个脉冲信号，这样就导致了会给扬声器一个瞬时的爆破音，影响系统品质。
启动防爆破音电路模块，在消除扬声器破音中采用硬件电路延迟和电源上电瞬间泄放电路，采用了二极管、高阻电容、三极管组合电路抑制开机瞬间电压的对系统的影响。系统供电通过控制POWER管脚上电，通过2限流后给5进行充电，此时4呈现高阻状态，Remote呈现低电平。当充电的电压达到0.7伏时4进入导通，3、7对POWER电压进行分压。Remote电压呈现99/100的Pwer电压呈现为高电平。
在一个实施例中，警示装置中设置了音量调节电路模块和RC整形电路模块。如图4所示，主控模块控制音量调节电路模块生成具有方波的PWM信号，PWM信号通过RC整形电路模块进行整形后发送到功率放大器模块，进行音量的调节。
对于声音的音量的调节，可以采用PWM方式合成算法的方式调节，涉及到PWM转换成平均直流电压的处理电路。音量调节采用PWM方式对功放芯片的功率输出控制引脚进行模拟电压输出的控制，分辨率可达65536个档位，PWM的信号的方波信号发出后通过RC整形电路模块产生一个近似直流电平，类似于“电位器旋钮”调压方式，产生1/65535的细分电压。
在一个实施例中，RC整形电路模块包括：第五电阻8、第六电阻9、第二无极性电容10、第三无极性电容11。第五电阻8与第二无极性电容10串联，第五电阻8的一端与音量调节电路模块连接，第二无极性电容10的一端接地。
第六电阻9和第三无极性电容11串联，第六电阻9的一端连接在第五电阻8与第二无极性电容10之间的连接线路上，第三无极性电容11的一端接地；第二输出线的一端连接 在第六电阻9和第三无极性电容11之间的连接线路上，另一端与功率放大器模块连接。
在一个实施例中，警示装置中设置数字滤波器。环境声音信号采集模块26实时采集外界环境声音的声压信号并发送到主控模块21。主控模块21将声压信号发送到数字滤波器中进行周期性的采样,并对每个样本进行量化和编码生成数字信号,将数字信号转换为模拟信号，对此模拟信号进行处理并获取声压信息。
加入了由麦克或传声器进行声音响度采集的电路，采集得到的电压传入到主控装置(微处理器)的AD端内部进行数字滤波，得到特定频率信号的声压的电压，基于此电压值控制所要发出的声压值。
主控装置(微处理器)的AD端口接收到外部环境的声场电压值，因为环境噪声的声压大多都集中在某一特定频率的，通过主控装置(微处理器)内部进行数字滤波算法，或设置独立的数字滤波器，将特定频率的声音的声场作为反馈参考电压，根据电压值控制所要发出的声压的大小。
在一个实施例中，选用带通型的数字滤波器，通过示波器观察频谱后规划出具体的需要频率范围，得到需要的频率范围，而后根据频率范围通过matlab软件模拟规划出采用具体滤波器模型，最后把matlab确定的数字滤波器算法实现在CPU或其它的硬件上，例如CPLD等，生成数字滤波器。常采用现有的多种滤波算法。
在一个实施例，语音芯片模块22包括：语音芯片YMF827等。主控模块21监控语音芯片模块22的控制引脚BUSY。判断当前语音芯片模块播放的声音文件的时间。当判断声音文件播放的剩余时间达到预设的时间阈值时，则主控模块21控制向语音芯片模块22发送播放下一个声音文件的控制指令。
对语音芯片YMF827的控制引脚BUSY进行监控，用示波器模式来识别声音切换的时间，在进行声音切换时提前此时间下达播放命令，即在上次声音没有停止前就下达下一次的播放命令。完成声音切换无断档。例如，声音的播放采用一个声音进行循环播放，当要进行声音切换时声音会发生断档，这里采用的是按照预设的时间提前激发声音切换命令。
通过提前向声音播放芯片发出声音切换命令，而不是等待系统播放完成后才执行声音切换命令，避免了因为命令执行延时带来的声音切换断档。例如，声音播放时，从监测到BUSY由高电平到低电平到最后的声音播放会有20毫秒以上时间不等的间隔，此间隔是导致声音断档的主要原因。记录声音切换所需要的时间，此时间为毫秒级，记录下此时间后把此时间设为X写到CPU的EEPROM中保存。当需要切换时，只需要根据声音文件的播放停止之前，提前X毫秒下达下一个声音的播放命令即可。
在一个实施例中，如图5所示，环境声音信号采集模块包括：麦克风放大器MAX9812LM1、第四电容16、第五电容17和第七电阻18。麦克15收集的信号通过输入线路分别通过第四电容16、第七电阻18与麦克风放大器MAX9812L的IN管脚、BIAS管脚连接，其中，IN引脚是信号输入引脚，BIAS引脚为电压补偿引脚。
麦克风放大器MAX9812L的SHND管脚通过第五电容17接地，并且在SHND管脚与第五电容17之间的连接线路上引入电压，麦克风放大器MAX9812L的GND管脚接地，麦克风放大器MAX9812L的VCC管脚接入电压，麦克风放大器MAX9812L的OUT管脚输出发大后的信号至主控模块21。主控模块21可以得到1000Hz左右频率的声音的电压值，来反馈设置发出警示音的声压值。
上述实施例中提供的具有主动预警功能的新能源汽车行人声音警示装置，配有红外检测模块和环境声音信号采集模块，可以主动判断是否需要发出声音，能够最大限度的关闭和减小行人警示音，解决了行人警示一直发出声音而无论前方是否有行人的问题，可以根据环境声压的大小来调节音量，具有下载接口，用户可以下载所选择的声音，并带有路段记忆功能旋钮等功能，提高了智能化程度。
可能以许多方式来实现本发明的方法和系统。例如，可通过软件、硬件、固件或者软件、硬件、固件的任何组合来实现本发明的方法和系统。用于方法的步骤的上述顺序仅是为了进行说明，本发明的方法的步骤不限于以上具体描述的顺序，除非以其它方式特别说明。此外，在一些实施例中，还可将本发明实施为记录在记录介质中的程序，这些程序包括用于实现根据本发明的方法的机器可读指令。因而，本发明还覆盖存储用于执行根据本发明的方法的程序的记录介质。
上述本发明所公开的任一技术方案除另有声明外，如果其公开了数值范围，那么公开的数值范围均为优选的数值范围，任何本领域的技术人员应该理解：优选的数值范围仅仅是诸多可实施的数值中技术效果比较明显或具有代表性的数值。由于数值较多，无法穷举，所以本发明才公开部分数值以举例说明本发明的技术方案，并且，上述列举的数值不应构成对本发明创造保护范围的限制。
同时，上述本发明如果公开或涉及了互相固定连接的零部件或结构件，那么，除另有声明外，固定连接可以理解为：能够拆卸地固定连接(例如使用螺栓或螺钉连接)，也可以理解为：不可拆卸的固定连接(例如铆接、焊接)，当然，互相固定连接也可以为一体式结构(例如使用铸造工艺一体成形制造出来)所取代(明显无法采用一体成形工艺除外)。
另外，上述本发明公开的任一技术方案中所应用的用于表示位置关系或形状的术语 除另有声明外其含义包括与其近似、类似或接近的状态或形状。本发明提供的任一部件既可以是由多个单独的组成部分组装而成，也可以为一体成形工艺制造出来的单独部件。
最后应当说明的是:以上实施例仅用以说明本发明的技术方案而非对其限制；尽管参照较佳实施例对本发明进行了详细的说明，所属领域的普通技术人员应当理解：依然可以对本发明的具体实施方式进行修改或者对部分技术特征进行等同替换；而不脱离本发明技术方案的精神，其均应涵盖在本发明请求保护的技术方案范围当中。

Claims (10)

  1. 一种具有主动预警功能的新能源汽车行人声音警示装置，其特征在于,包括：
    主控模块(21)、语音芯片模块(22)、功率放大器模块(23)、红外探测模块(28)；所述主控模块(21)分别与所述语音芯片模块(22)和红外探测模块(28)连接；所述语音芯片模块(22)和所述功率放大器模块(23)连接；所述红外探测模块(28)检测车辆周边是否有人并输出红外探测信号，所述主控模块(21)接收到所述红外探测信号并根据所述红外探测信号向所述语音芯片模块(22)发送播放指令，所述语音芯片模块(22)向所述功率放大器模块(23)发送声音信号，由所述功率放大器模块(23)驱动扬声器(27)播放所述声音信号。
  2. 如权利要求1所述的警示装置，其特征在于，包括：
    环境声音信号采集模块(26)；所述主控模块(21)与所述环境声音信号采集模块(26)连接；所述环境声音信号采集模块(26)将外界环境声音的声压信号发送到所述主控模块(21)，所述主控模块(21)根据所述声压信号确定播放所述声音信号的音量，并基于所述音量控制所述功率放大器模块(23)的输出功率。
  3. 如权利要求2所述的警示装置，其特征在于，包括：
    路段记忆旋钮(29)；所述路段记忆旋钮(29)与所述主控模块(21)电连接。
  4. 如权利要求2所述的警示装置，其特征在于：
    还包括：CAN收发器模块(25)；
    所述主控模块(21)通过所述CAN收发器模块(25)与新能源汽车的控制装置连接，接收新能源汽车的控制装置发送的状态信号，包括：电机转速和车速信号；所述主控模块(21)基于所述状态信号生成行车数据，并将所述行车数据发送到所述语音芯片模块(22)，所述语音芯片模块(22)基于所述行车数据生成汽车引擎声音信号。
  5. 如权利要求4所述的警示装置，其特征在于：
    包括：防爆破音电路模块；所述防爆破音电路模块包括：二极管(1)、第一电阻(2)、第二电阻(3)、NPN型三极管(4)、第一有极性电容(5)、第三电阻(6)、第四电阻(7)；
    所述第四电阻(7)的一端接地，另一端与所述NPN型三极管(4)的发射极连接；所述第一有极性电容(5)和第三电阻(6)并联，形成第一子电路；所述第一电阻(2)的一端和所述第二电阻(3)的一端连接，形成第一连接点；所述二极管(1)的一端与供电模块或功率放大器模块(23)连接，所述二极管(1)的另一端与所述第一连接点连接；所述第二电阻(3)的另一端与所述NPN型三极管(4)的集电极连接；所述第一子电路的一端与所述第一电阻(2)的另一端连接，此连接点与所述NPN型三极管(4)的基极连接；所述第一 子电路的第二端连接在所述第四电阻(7)用于接地的连接线路上，第一电流输出线的一端连接在所述第四电阻(7)与所述NPN型三极管(4)的发射极之间的连接线路上，所述第一电流输出线的另一端与所述扬声器连接；
    其中，电流通过所述二极管(1)的一端进入，通过所述第一电阻(2)限流后用于给所述第一有极性电容(5)进行充电，此时所述NPN型三极管(4)呈现高阻状态，当所述第一有极性电容(5)的电压达到阈值时，所述NPN型三极管(4)进入导通状态。
  6. 如权利要求5所述的警示装置，其特征在于：
    包括：音量调节电路模块和RC整形电路模块；
    所述主控模块控制所述音量调节电路模块生成具有方波的PWM信号，所述PWM信号通过所述RC整形电路模块进行整形后发送到所述功率放大器模块，进行音量的调节；
    所述RC整形电路模块包括：第五电阻(8)、第六电阻(9)、第二无极性电容(10)、第三无极性电容(11)；所述第五电阻(8)与所述第二无极性电容(10)串联，所述第五电阻(8)的一端与所述音量调节电路模块连接，所述第二无极性电容(10)的一端接地；所述第六电阻(9)和第三无极性电容(11)串联，所述第六电阻(9)的一端连接在所述第五电阻(8)与所述第二无极性电容(10)之间的连接线路上，所述第三无极性电容(11)的一端接地；第二输出线的一端连接在所述第六电阻(9)和第三无极性电容(11)之间的连接线路上，另一端与所述功率放大器模块连接。
  7. 如权利要求6所述的警示装置，其特征在于：
    还包括：数字滤波器；所述环境声音信号采集模块实时采集外界环境声音的声压信号并发送到所述主控模块；所述主控模块将所述声压信号发送到所述数字滤波器中进行周期性的采样,并对每个样本进行量化和编码生成数字信号,将所述数字信号转换为模拟信号，对此模拟信号进行处理并获取声压信息。
  8. 如权利要求7所述的警示装置，其特征在于：
    所述主控模块监控所述语音芯片模块的控制引脚BUSY，判断当前所述语音芯片模块播放的声音文件的时间；当判断所述声音文件播放的剩余时间达到预设的时间阈值时，则所述主控模块控制向所述语音芯片模块发送播放下一个声音文件的控制指令。
  9. 如权利要求8所述的警示装置，其特征在于：
    所述环境声音信号采集模块包括：麦克风放大器(M1)、第四电容(16)、第五电容(17)和第七电阻(18)；麦克(15)收集的信号通过输入线路分别通过所述第四电容(16)、所述第七电阻(18)与所述麦克风放大器的IN管脚、BIAS管脚连接，其中，IN引脚是信号输 入引脚，BIAS引脚为电压补偿引脚；所述麦克风放大器的SHND管脚通过所述第五电容(17)接地，并且在SHND管脚与所述第五电容(17)之间的连接线路上引入电压，所述麦克风放大器的GND管脚接地，所述麦克风放大器的VCC管脚接入所述电压，所述麦克风放大器的OUT管脚输出发大后的信号至所述主控模块。
  10. 如权利要求1所述的警示装置，其特征在于：
    所述主控模块与所述语音芯片模块通过SPI串行总线连接；
    在供电模块(24)与所述语音芯片模块、所述功率放大器模块的连接线路中设置压敏电阻。
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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107757473A (zh) * 2017-11-23 2018-03-06 华中师范大学 一种自供电汽车避险辅助系统
CN108092235A (zh) * 2017-12-08 2018-05-29 九牧智能厨卫（安徽）有限公司 一种电机过流或堵转的纯硬件保护装置、方法及其应用
CN110412923A (zh) * 2019-08-17 2019-11-05 广东乐创电器有限公司 一种具有语音预警提示功能的控制电路
CN112637375A (zh) * 2020-12-16 2021-04-09 安徽阿瑞特汽车电子科技有限公司 一种can总线设备地址设定的电路
CN113014860A (zh) * 2019-12-20 2021-06-22 杭州海康威视数字技术股份有限公司 摄像机系统
CN113067563A (zh) * 2021-03-15 2021-07-02 重庆智行者信息科技有限公司 一种pwm信号输出和诊断电路
WO2023201480A1 (zh) * 2022-04-18 2023-10-26 常州市工业互联网研究院有限公司 一种生产设备数据获取装置、电源电路及生产设备

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105489063B (zh) * 2016-01-13 2018-04-13 吉林航盛电子有限公司 一种具有主动预警功能的新能源汽车行人声音警示装置
CN105751963A (zh) * 2016-05-06 2016-07-13 北京长安汽车工程技术研究有限责任公司 一种电动汽车警示系统
CN107054210A (zh) * 2017-03-16 2017-08-18 吉林航盛电子有限公司 一种新能源汽车的警示音发生器
CN108263313A (zh) * 2018-02-06 2018-07-10 安徽英之杰汽车科技有限公司 一种商用车转向行人警示系统及其控制方法
US10800409B2 (en) * 2018-09-04 2020-10-13 Caterpillar Paving Products Inc. Systems and methods for operating a mobile machine using detected sounds
DE102020204044A1 (de) 2020-03-27 2021-09-30 Zf Friedrichshafen Ag Verfahren zum Warnen von Lebewesen
CN113029107B (zh) * 2021-03-30 2022-11-11 南京智行信息科技有限公司 一种基于机器视觉和5g网络的车载式检测装置
TWI801870B (zh) * 2021-05-13 2023-05-11 樹德科技大學 汽車聲響警示系統及方法
CN113868337B (zh) * 2021-09-27 2022-04-22 哈尔滨华强电力自动化工程有限公司 应用区块链的双参数协同判断系统及方法
DE102022128996A1 (de) 2022-11-02 2024-05-02 Daimler Truck AG Elektrisch oder hybridelektrisch angetriebenes Fahrzeug

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005035040A1 (de) * 2004-08-06 2006-04-13 Kerstin Oppermann Kollisionsvermeidungssystem und Verfahren zum Betrieb eines Kraftfahrzeugs
CN201780641U (zh) * 2010-08-23 2011-03-30 红塔烟草(集团)有限责任公司 便携式智能语音警示装置
CN202652374U (zh) * 2012-04-18 2013-01-02 深圳创维－Rgb电子有限公司 一种电视机及其静音辅助控制电路
CN103974171A (zh) * 2014-05-28 2014-08-06 上海贝岭股份有限公司 爆破音消除电路
CN204196774U (zh) * 2013-11-28 2015-03-11 长城汽车股份有限公司 一种发动机噪音模拟系统
CN104464182A (zh) * 2014-11-10 2015-03-25 国家电网公司 一种危险区域红外线告警系统
CN105383376A (zh) * 2015-12-04 2016-03-09 吉林航盛电子有限公司 一种基于环境声音反馈的新能源汽车行人声音警示装置
CN105489063A (zh) * 2016-01-13 2016-04-13 吉林航盛电子有限公司 一种具有主动预警功能的新能源汽车行人声音警示装置
CN205281809U (zh) * 2016-01-13 2016-06-01 吉林航盛电子有限公司 一种具有主动预警功能的新能源汽车行人声音警示装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201130928Y (zh) * 2007-12-05 2008-10-08 环隆电气股份有限公司 爆音消除电路
JP2011084224A (ja) * 2009-10-18 2011-04-28 Masahide Tanaka モータ駆動可能な車両
US20120166042A1 (en) * 2009-12-11 2012-06-28 Noritaka Kokido Sound output device for electric vehicle
DE102010048463A1 (de) * 2010-10-14 2011-05-19 Daimler Ag Verfahren und Signalisierungssystem zum umgebungsadaptiven Regeln der Signalausgabe geräuscharmer Fahrzeuge
DE102011121284A1 (de) * 2011-12-15 2013-06-20 Gm Global Technology Operations, Llc Verfahren und Vorrichtung zum Erzeugen von künstlichen Fahrgeräuschen eines Kraftfahrzeugs, Computerprogramm
CN203419064U (zh) * 2013-08-23 2014-02-05 重庆金宏汽车电子有限公司 用于电动汽车的行人自动报警装置
US9347388B2 (en) * 2014-03-21 2016-05-24 GM Global Technology Operations LLC Autostop customer alert feature
CN103927849B (zh) * 2014-04-28 2017-01-18 吉林航盛电子有限公司 一种新能源汽车的音量可调的行人声音提醒装置

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005035040A1 (de) * 2004-08-06 2006-04-13 Kerstin Oppermann Kollisionsvermeidungssystem und Verfahren zum Betrieb eines Kraftfahrzeugs
CN201780641U (zh) * 2010-08-23 2011-03-30 红塔烟草(集团)有限责任公司 便携式智能语音警示装置
CN202652374U (zh) * 2012-04-18 2013-01-02 深圳创维－Rgb电子有限公司 一种电视机及其静音辅助控制电路
CN204196774U (zh) * 2013-11-28 2015-03-11 长城汽车股份有限公司 一种发动机噪音模拟系统
CN103974171A (zh) * 2014-05-28 2014-08-06 上海贝岭股份有限公司 爆破音消除电路
CN104464182A (zh) * 2014-11-10 2015-03-25 国家电网公司 一种危险区域红外线告警系统
CN105383376A (zh) * 2015-12-04 2016-03-09 吉林航盛电子有限公司 一种基于环境声音反馈的新能源汽车行人声音警示装置
CN105489063A (zh) * 2016-01-13 2016-04-13 吉林航盛电子有限公司 一种具有主动预警功能的新能源汽车行人声音警示装置
CN205281809U (zh) * 2016-01-13 2016-06-01 吉林航盛电子有限公司 一种具有主动预警功能的新能源汽车行人声音警示装置

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107757473A (zh) * 2017-11-23 2018-03-06 华中师范大学 一种自供电汽车避险辅助系统
CN108092235A (zh) * 2017-12-08 2018-05-29 九牧智能厨卫（安徽）有限公司 一种电机过流或堵转的纯硬件保护装置、方法及其应用
CN108092235B (zh) * 2017-12-08 2024-04-26 南安九牧智能晾晒科技有限公司 一种电机过流或堵转的纯硬件保护装置、方法及其应用
CN110412923A (zh) * 2019-08-17 2019-11-05 广东乐创电器有限公司 一种具有语音预警提示功能的控制电路
CN110412923B (zh) * 2019-08-17 2024-02-20 广东乐创电器有限公司 一种具有语音预警提示功能的控制电路
CN113014860A (zh) * 2019-12-20 2021-06-22 杭州海康威视数字技术股份有限公司 摄像机系统
CN112637375A (zh) * 2020-12-16 2021-04-09 安徽阿瑞特汽车电子科技有限公司 一种can总线设备地址设定的电路
CN113067563A (zh) * 2021-03-15 2021-07-02 重庆智行者信息科技有限公司 一种pwm信号输出和诊断电路
WO2023201480A1 (zh) * 2022-04-18 2023-10-26 常州市工业互联网研究院有限公司 一种生产设备数据获取装置、电源电路及生产设备

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