WO2020034562A1 - Novel emergency-braking warning lamp - Google Patents

Novel emergency-braking warning lamp Download PDF

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Publication number
WO2020034562A1
WO2020034562A1 PCT/CN2019/070673 CN2019070673W WO2020034562A1 WO 2020034562 A1 WO2020034562 A1 WO 2020034562A1 CN 2019070673 W CN2019070673 W CN 2019070673W WO 2020034562 A1 WO2020034562 A1 WO 2020034562A1
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Prior art keywords
terminal
microcontroller
voltage regulator
circuit
resistor
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PCT/CN2019/070673
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French (fr)
Chinese (zh)
Inventor
吴文峰
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深圳爽丽日化企业
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Publication of WO2020034562A1 publication Critical patent/WO2020034562A1/en

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Classifications

    • 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
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • B60Q1/44—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating braking action or preparation for braking, e.g. by detection of the foot approaching the brake pedal
    • 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
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • B60Q1/50—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating other intentions or conditions, e.g. request for waiting or overtaking
    • B60Q1/54—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating other intentions or conditions, e.g. request for waiting or overtaking for indicating speed outside of the vehicle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices

Definitions

  • the utility model relates to the technical field of automobiles, and more particularly, to a novel emergency brake warning light.
  • the vehicle often encounters the brakes of the front vehicle during the driving process, but the rear vehicle cannot determine whether the front vehicle brakes lightly or suddenly, so many traffic accidents occur because the brake conditions of the front vehicle are not clearly determined; for example, in heavy fog, In heavy rain or snow, when visibility is poor, or when the front car turns on the rear driving lights, it is more difficult for the rear car to distinguish whether the front car is in the braking deceleration state or the normal driving state, so it is easy to cause a traffic accident.
  • the technical problem to be solved by the present utility model is to provide a new type of emergency brake warning light with simple structure, low cost, small size and wide applicability in response to the above defects of the prior art.
  • a new type of emergency brake warning light is constructed, which includes a vehicle acceleration acquisition circuit; wherein the vehicle acceleration acquisition circuit includes an acceleration sensor, the acceleration sensor is connected to a control circuit, and the control circuit includes a microcontroller; The SDA end is connected to the P1.0 / T2 end of the microcontroller, the SCL end of the acceleration sensor is connected to the P1.1 / T2EX end of the microcontroller; the microcontroller is connected with a warning light circuit, The warning light circuit includes a plurality of light emitting diodes, and the anodes of the plurality of light emitting diodes are all connected to the P0.0 / AD0 terminal of the microcontroller; the new type of emergency brake warning light lamp further includes a power circuit, The power circuit is connected to the vehicle acceleration acquisition circuit, the control circuit, and the warning light circuit.
  • the power circuit includes a voltage regulator tube, the VI terminal of the voltage regulator tube is connected to the positive pole of the power source, and the GND terminal of the voltage regulator tube is connected to the negative pole of the power source.
  • the VI terminal and the GND terminal of the voltage regulator tube are connected in parallel with a first capacitor;
  • the VO terminal of the voltage regulator tube is connected with a voltage regulator, and the I terminal and the en terminal of the voltage regulator are connected to the voltage regulator tube;
  • the VO terminal of the voltage regulator is connected to the second and third capacitors at the O terminal, and the other ends of the second and third capacitors are both connected to the negative electrode of the power supply.
  • the VO terminal of the voltage regulator tube is connected to the VCC terminal of the microcontroller; the VLOGIC terminal and the VDD terminal of the acceleration sensor are both connected to the voltage regulator. O terminal connection.
  • a first resistor is connected to the SDA terminal of the acceleration sensor, and a second resistor is connected to the SCL terminal of the acceleration sensor.
  • One end is connected to the O terminal of the voltage regulator;
  • a third resistor is connected to the AD0 terminal of the acceleration sensor, and the other terminal of the third resistor is connected to the negative electrode of the power supply;
  • the REGOUT terminal of the acceleration sensor is connected
  • There is a fourth capacitor the other end of the fourth capacitor is connected to the negative electrode of the power supply, the CPOUT terminal of the acceleration sensor is connected to a fifth capacitor, and the other end of the fifth capacitor is connected to the negative electrode of the power supply.
  • a fourth resistor is connected to the P0.0 / AD0 end of the microcontroller, and a field effect tube is connected to the other end of the fourth resistor, and the field effect
  • the gate of the tube is connected to the other end of the fourth resistor
  • the drain of the field effect tube is connected to the O terminal of the voltage regulator
  • a fifth resistor is connected in parallel to the gate and source of the field effect tube.
  • the source of the field effect tube is further connected with a diode, and the anode of the diode is connected with the source of the field effect tube.
  • a sixth capacitor is further connected to the RST terminal of the micro-control circuit, and a negative electrode of the sixth capacitor is connected to the RST terminal of the microcontroller.
  • the other end of the six capacitors is connected to the VO end of the voltage regulator tube; the EST end of the microcontroller is also connected to a sixth resistor, and the other end of the sixth resistor is connected to the negative pole of the power supply;
  • the EA terminal of the controller is connected to the VO terminal of the voltage regulator.
  • the beneficial effect of the utility model is that the current acceleration of the vehicle is detected in real time by the acceleration sensor in the vehicle acceleration acquisition circuit, and the collected data is transmitted to the microcontroller in the control circuit for analysis and processing.
  • the microcontroller controls multiple light-emitting diodes in the warning light circuit to blink to warn other vehicles. The greater the speed of the decrease, the higher the blinking frequency of the light-emitting diodes.
  • the human instinct's conditioned reflection feature is used to intuitively notify the driver of the surrounding vehicle to reduce quickly.
  • the running speed of the vehicle keeps the distance from the preceding vehicle, which reduces the occurrence of serious rear-end collisions and reduces the fatality of traffic accidents.
  • the emergency stop signal light stops flashing, making it have the same function as the current ordinary brake light.
  • the power circuit can adapt to 7-30V wide voltage power supply to meet different usage needs; simple structure, low cost, small size, and wide applicability.
  • FIG. 1 is a schematic diagram of installing a new emergency brake warning light according to a preferred embodiment of the present invention
  • FIG. 2 is a circuit diagram of a novel emergency brake warning light power supply circuit according to a preferred embodiment of the present invention
  • FIG. 3 is a circuit diagram of a novel rapid brake warning light vehicle speed acquisition circuit according to a preferred embodiment of the present invention.
  • FIG. 4 is a circuit diagram of a novel emergency brake warning light control circuit according to a preferred embodiment of the present invention.
  • FIG. 5 is a circuit diagram of a new emergency brake warning light warning light circuit according to a preferred embodiment of the present invention.
  • FIG. 1 A new type of emergency brake warning light according to a preferred embodiment of the present invention is shown in FIG. 1, and referring to FIG. 2, FIG. 3, FIG. 4, and FIG. 5, the vehicle speed acquisition circuit 2 is included, and the vehicle acceleration acquisition circuit 2 includes the acceleration sensor IC1.
  • a control circuit 3 is connected to the sensor IC1, and the control circuit 3 includes a microcontroller U1; the SDA terminal of the acceleration sensor IC1 is connected to the P1.0 / T2 terminal of the microcontroller U1, and the SCL terminal of the acceleration sensor IC1 is connected to P1 of the microcontroller U1 .1 / T2EX terminal connection; microcontroller U1 is connected with warning light circuit 4, warning light circuit 4 includes multiple light emitting diodes, and the positive poles of multiple light emitting diodes are connected to P0.0 / AD0 terminal of microcontroller U1; This new type of emergency brake warning light also includes a power supply circuit 1, which is connected to the vehicle speed acquisition circuit 2, the control circuit 3, and the warning light circuit 4.
  • the acceleration sensor IC1 in the vehicle acceleration acquisition circuit 2 detects the current acceleration of the vehicle in real time.
  • the collected data is transmitted to the microcontroller U1 in the control circuit 3 for analysis and processing.
  • the microcontroller U1 controls multiple light emitting diodes in the warning light circuit. Blink to alert other vehicles.
  • the human instinct's conditioned reflection feature is used to intuitively notify the driver of the surrounding vehicle to quickly reduce the speed of the vehicle, keep a distance from the front vehicle, and reduce serious rear-end collisions.
  • the emergency braking signal light stops flashing, making it have the same function as the current ordinary brake light; and the power circuit 1 can adapt to a 7-30V wide voltage power supply, To meet different usage needs; simple structure, low cost, small size and wide applicability.
  • the power supply circuit 1 includes a zener tube U2.
  • the VI terminal of the zener tube U2 is connected to the positive pole of the power supply, the GND terminal of the zener tube U2 is connected to the negative pole of the power supply; the VI terminal of the zener tube U2 and the GND terminal are connected in parallel.
  • the voltage regulator U2 is a 7805 three-terminal voltage regulator capable of adapting to a 7-30V wide voltage input.
  • the regulator Q1 is an RT9193 low-dropout linear regulator, which further ensures the stability of the circuit's operation and improves the work efficiency.
  • the first, second, and third capacitors C12, C2, and C3 are connected in parallel to the circuit. The operation stability of the power supply circuit 1 is further improved, and unnecessary AC components in the DC power supply are filtered out to smooth the DC power and make the work more stable.
  • the VO terminal of the voltage regulator U2 is connected to the VCC terminal of the microcontroller U1; the VLOGIC terminal and VDD terminal of the acceleration sensor IC1 are connected to the O terminal of the voltage regulator Q1, and the structure is simple. low cost.
  • the SDA terminal of the acceleration sensor IC1 is connected to a first resistor R2
  • the SCL terminal of the acceleration sensor IC1 is connected to a second resistor R3
  • the other ends of the first and second resistors R2 and R3 are connected to the regulator Q1.
  • the O terminal is connected, and a pull-up resistor is used to ensure that the acceleration sensor IC1 and the microcontroller U1 communicate normally;
  • the AD0 terminal of the acceleration sensor IC1 is connected to a third resistor R4, and the other end of the third resistor R4 is connected to the negative pole of the power supply;
  • the acceleration sensor IC1 A fourth capacitor C5 is connected to the REGOUT terminal, the other terminal of the fourth capacitor C5 is connected to the negative electrode of the power supply, a fifth capacitor C6 is connected to the CPOUT terminal of the acceleration sensor IC1, and the other terminal of the fifth capacitor C6 is connected to the negative electrode of the power supply. Acceleration sensor IC1's working requirements improve working efficiency and make the operation more stable.
  • the P0.0 / AD0 terminal of the microcontroller U1 is connected to a fourth resistor R6, and the other end of the fourth resistor R6 is connected to a field effect transistor Q2.
  • the gate of the field effect transistor Q2 and the fourth resistor R6 The other end of the MOSFET Q2 is connected to the O terminal of the voltage regulator Q1.
  • the gate and source of the MOSFET Q2 are connected in parallel with a fifth resistor R7, and the source of the MOSFET Q2 is also connected to a diode.
  • the anode of the diode D37 is connected to the source of the field effect tube Q2;
  • the field effect tube Q2 is an IGR540 field effect tube, and the use of the field effect tube to control the power of the warning light circuit 4 makes the control more decisive and the circuit loss is lower; and the series diode In order to reduce the voltage by using the voltage drop characteristic of the diode, the use of the warning light circuit is met.
  • the RST terminal of the microcontroller U1 is also connected to a sixth capacitor C10, the negative electrode of the sixth capacitor C10 is connected to the RST terminal of the microcontroller U1, and the other end of the sixth capacitor C10 is connected to the voltage regulator U2.
  • the VO terminal is connected; the EST terminal of the microcontroller U1 is also connected to a sixth resistor R6, and the other end of the sixth resistor R6 is connected to the negative pole of the power supply; the EA terminal of the microcontroller U1 is connected to the VO terminal of the voltage regulator U2;
  • the controller U1 uses the reset initialization at power-on to further cooperate with the electronic watchdog to improve the operation stability; the EA terminal of the microcontroller U1 is connected to a high level to use the internal program processor of the microcontroller U1, reducing costs and reducing The small size makes the structure simple.
  • the warning light circuit 4 includes a plurality of light emitting diodes, and the plurality of light emitting diodes are connected in parallel; to ensure that the warning light circuit 4 does not affect the entire circuit due to the damage of the local light emitting diodes.
  • the power supply of the new emergency brake warning light can be directly connected to the vehicle's battery or the brake light signal line to achieve brake detection to save power.
  • the new emergency brake warning light only takes about 100ms to power up and run normally. No delay to ensure real-time feedback of the vehicle's current acceleration.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)

Abstract

Disclosed is a emergency-braking warning lamp, comprising a vehicular acceleration collecting circuit (2) including an acceleration sensor (IC1), the acceleration sensor (IC1) is connected with a control circuit (3) including a microcontroller (U1); the microcontroller (U1) is connected with a warning lamp circuit (4) which is composed of a plurality of light emitting diodes and a control circuit (3); the acceleration sensor (IC1) in the vehicular acceleration collecting circuit (2) detects an acceleration of a vehicle in real time, and transmits the collected data to the microcontroller (U1) in the control circuit (3) for processing; when the speed of the vehicle is reduced suddenly, the microcontroller (U1) controls the plurality of light emitting diodes in the warning lamp circuit (4) to flicker to warn other vehicles; the larger the reduction amplitude is, the higher the flickering frequency of the warning lamp is; the human brain conditioned reflex is utilized to warn drivers of the surrounding vehicles to rapidly reduce the driving speed of the vehicle, so as to warn the vehicles to keep a distance from the front vehicle, thereby reducing occurrence of serious rear-end collisions. The reduction amplitude of the vehicle is reduced to a certain numerical value, the emergency-braking signal lamp stops flickering, such that the warning lamp has the same function as the current common brake lamps.

Description

一种新型急刹警示灯Novel emergency brake warning light 技术领域Technical field
本实用新型涉及汽车技术领域，更具体地说，涉及一种新型急刹警示灯。 The utility model relates to the technical field of automobiles, and more particularly, to a novel emergency brake warning light.
背景技术Background technique
车辆在行驶过程中经常会遇到前车刹车，但是后车根本无法判断前车是轻点刹车还是急刹车，因此出现很多因未清楚判断前车刹车情况而出现交通事故；例如在大雾、大雨或者大雪天气视线不佳的情况下或者是前车开启尾部行车灯等情况，后车更难分辨前车在刹车减速状态还是正常行驶状态，因而很容易造成交通事故的发生。The vehicle often encounters the brakes of the front vehicle during the driving process, but the rear vehicle cannot determine whether the front vehicle brakes lightly or suddenly, so many traffic accidents occur because the brake conditions of the front vehicle are not clearly determined; for example, in heavy fog, In heavy rain or snow, when visibility is poor, or when the front car turns on the rear driving lights, it is more difficult for the rear car to distinguish whether the front car is in the braking deceleration state or the normal driving state, so it is easy to cause a traffic accident.
技术问题technical problem
本实用新型要解决的技术问题在于，针对现有技术的上述缺陷，提供一种结构简单，成本低，体积小，适用性广泛的新型急刹警示灯。The technical problem to be solved by the present utility model is to provide a new type of emergency brake warning light with simple structure, low cost, small size and wide applicability in response to the above defects of the prior art.
技术解决方案Technical solutions
本实用新型解决其技术问题所采用的技术方案是：The technical solution adopted by the utility model to solve its technical problems is:
构造一种新型急刹警示灯，包括车辆加速度采集电路；其中，所述车辆加速度采集电路包括加速度传感器，所述加速度传感器连接有控制电路，所述控制电路包括微控制器；所述加速度传感器的SDA端与所述微控制器的P1.0/T2端连接，所述加速度传感器的SCL端与所述微控制器的P1.1/T2EX端连接；所述微控制器连接有警示灯电路，所述警示灯电路包括多个发光二极管，所述多个发光二极管的正极均与所述微控制器的P0.0/AD0端连接；所述一种新型急刹警示灯灯还包括电源电路，所述电源电路均与所述车辆加速度采集电路、所述控制电路以及所述警示灯电路连接。A new type of emergency brake warning light is constructed, which includes a vehicle acceleration acquisition circuit; wherein the vehicle acceleration acquisition circuit includes an acceleration sensor, the acceleration sensor is connected to a control circuit, and the control circuit includes a microcontroller; The SDA end is connected to the P1.0 / T2 end of the microcontroller, the SCL end of the acceleration sensor is connected to the P1.1 / T2EX end of the microcontroller; the microcontroller is connected with a warning light circuit, The warning light circuit includes a plurality of light emitting diodes, and the anodes of the plurality of light emitting diodes are all connected to the P0.0 / AD0 terminal of the microcontroller; the new type of emergency brake warning light lamp further includes a power circuit, The power circuit is connected to the vehicle acceleration acquisition circuit, the control circuit, and the warning light circuit.
本实用新型所述的新型急刹警示灯，其中，所述电源电路包括稳压管，所述稳压管的VI端连接电源正极，所述稳压管的GND端与所述电源的负极连接；所述稳压管的VI端和GND端并联有第一电容；所述稳压管的VO端连接有稳压器，所述稳压器的I端、en端均与所述稳压管的VO端连接；所述稳压器的O端连接有第二、第三电容，所述第二、第三电容的另一端均与所述电源的负极连接。The novel emergency brake warning light according to the present utility model, wherein the power circuit includes a voltage regulator tube, the VI terminal of the voltage regulator tube is connected to the positive pole of the power source, and the GND terminal of the voltage regulator tube is connected to the negative pole of the power source. The VI terminal and the GND terminal of the voltage regulator tube are connected in parallel with a first capacitor; the VO terminal of the voltage regulator tube is connected with a voltage regulator, and the I terminal and the en terminal of the voltage regulator are connected to the voltage regulator tube; The VO terminal of the voltage regulator is connected to the second and third capacitors at the O terminal, and the other ends of the second and third capacitors are both connected to the negative electrode of the power supply.
本实用新型所述的新型急刹警示灯，其中，所述稳压管的VO端与所述微控制器的VCC端连接；所述加速度传感器的VLOGIC端、VDD端均与所述稳压器的O端连接。According to the novel emergency brake warning light of the present utility model, the VO terminal of the voltage regulator tube is connected to the VCC terminal of the microcontroller; the VLOGIC terminal and the VDD terminal of the acceleration sensor are both connected to the voltage regulator. O terminal connection.
本实用新型所述的新型急刹警示灯，其中，所述加速度传感器的SDA端连接有第一电阻，所述加速度传感器的SCL端连接有第二电阻，所述第一、第二电阻的另一端均与所述稳压器的O端连接；所述加速度传感器的AD0端连接有第三电阻，所述第三电阻的另一端与所述电源的负极连接；所述加速度传感器的REGOUT端连接有第四电容，所述第四电容的另一端与所述电源的负极连接，所述加速度传感器的CPOUT端连接有第五电容，所述第五电容的另一端与所述电源的负极连接。According to the novel emergency brake warning light of the present utility model, a first resistor is connected to the SDA terminal of the acceleration sensor, and a second resistor is connected to the SCL terminal of the acceleration sensor. One end is connected to the O terminal of the voltage regulator; a third resistor is connected to the AD0 terminal of the acceleration sensor, and the other terminal of the third resistor is connected to the negative electrode of the power supply; the REGOUT terminal of the acceleration sensor is connected There is a fourth capacitor, the other end of the fourth capacitor is connected to the negative electrode of the power supply, the CPOUT terminal of the acceleration sensor is connected to a fifth capacitor, and the other end of the fifth capacitor is connected to the negative electrode of the power supply.
本实用新型所述的新型急刹警示灯，其中，所述微控制器的P0.0/AD0端连接有第四电阻，所述第四电阻的另一端连接有场效应管，所述场效应管的栅极与所述第四电阻的另一端连接，所述场效应管的漏极与所述稳压器的O端连接，所述场效应管的栅极和源极并联有第五电阻，所述场效应管的源极还连接有二极管，所述二极管的正极与所述场效应管的源极连接。According to the novel emergency brake warning light of the present utility model, a fourth resistor is connected to the P0.0 / AD0 end of the microcontroller, and a field effect tube is connected to the other end of the fourth resistor, and the field effect The gate of the tube is connected to the other end of the fourth resistor, the drain of the field effect tube is connected to the O terminal of the voltage regulator, and a fifth resistor is connected in parallel to the gate and source of the field effect tube. The source of the field effect tube is further connected with a diode, and the anode of the diode is connected with the source of the field effect tube.
本实用新型所述的新型急刹警示灯，其中，所述微控制电路的RST端还连接有第六电容，所述第六电容的负极于所述微控制器的RST端连接，所述第六电容的另一端与所述稳压管的VO端连接；所述微控制器的EST端还连接有第六电阻，所述第六电阻的另一端与所述电源的负极连接；所述微控制器的EA端与所述稳压管的VO端连接。According to the novel emergency brake warning light of the present utility model, a sixth capacitor is further connected to the RST terminal of the micro-control circuit, and a negative electrode of the sixth capacitor is connected to the RST terminal of the microcontroller. The other end of the six capacitors is connected to the VO end of the voltage regulator tube; the EST end of the microcontroller is also connected to a sixth resistor, and the other end of the sixth resistor is connected to the negative pole of the power supply; The EA terminal of the controller is connected to the VO terminal of the voltage regulator.
有益效果Beneficial effect
本实用新型的有益效果在于：通过车辆加速度采集电路中的加速度传感器实时检测车辆的当前加速度，并将采集到的数据传给控制电路中的微控制器进行分析处理，当车辆出现降速情况时，微控制器控制警示灯电路中的多个发光二极管进行闪烁以警示其它车辆，降速幅度越大发光二极管的闪烁频率就越高，利用人类本能的条件反射特征直观的通知周边车辆司机迅速降低车辆的行驶速度，与前车保持距离，减少严重追尾的事故发生，降低交通事故死亡率；车辆降速幅度减少至一定数值后急刹车信号灯停止闪烁，使其与现行普通刹车灯有相同的功能；且电源电路能适应7-30V宽电压供电，以适应不同的使用需求；实现结构简单，成本低，体积小，适用性广泛。The beneficial effect of the utility model is that the current acceleration of the vehicle is detected in real time by the acceleration sensor in the vehicle acceleration acquisition circuit, and the collected data is transmitted to the microcontroller in the control circuit for analysis and processing. The microcontroller controls multiple light-emitting diodes in the warning light circuit to blink to warn other vehicles. The greater the speed of the decrease, the higher the blinking frequency of the light-emitting diodes. The human instinct's conditioned reflection feature is used to intuitively notify the driver of the surrounding vehicle to reduce quickly. The running speed of the vehicle keeps the distance from the preceding vehicle, which reduces the occurrence of serious rear-end collisions and reduces the fatality of traffic accidents. After the speed of the vehicle is reduced to a certain value, the emergency stop signal light stops flashing, making it have the same function as the current ordinary brake light. ; And the power circuit can adapt to 7-30V wide voltage power supply to meet different usage needs; simple structure, low cost, small size, and wide applicability.
附图说明BRIEF DESCRIPTION OF THE DRAWINGS
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，下面将结合附图及实施例对本实用新型作进一步说明，下面描述中的附图仅仅是本发明的部分实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他附图：In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the present invention will be further described below with reference to the accompanying drawings and embodiments. The drawings in the following description are only some embodiments of the present invention. Those of ordinary skill in the art can obtain other drawings according to these drawings without paying creative labor:
图1是本实用新型较佳实施例的新型急刹警示灯的安装示意图；FIG. 1 is a schematic diagram of installing a new emergency brake warning light according to a preferred embodiment of the present invention;
图2是本实用新型较佳实施例的新型急刹警示灯电源电路的电路图；2 is a circuit diagram of a novel emergency brake warning light power supply circuit according to a preferred embodiment of the present invention;
图3是本实用新型较佳实施例的新型急刹警示灯车速采集电路的电路图；3 is a circuit diagram of a novel rapid brake warning light vehicle speed acquisition circuit according to a preferred embodiment of the present invention;
图4是本实用新型较佳实施例的新型急刹警示灯控制电路的电路图；4 is a circuit diagram of a novel emergency brake warning light control circuit according to a preferred embodiment of the present invention;
图5是本实用新型较佳实施例的新型急刹警示灯警示灯电路的电路图。FIG. 5 is a circuit diagram of a new emergency brake warning light warning light circuit according to a preferred embodiment of the present invention.
本发明的实施方式Embodiments of the invention
为了使本实用新型实施例的目的、技术方案和优点更加清楚，下面将结合本实用新型实施例中的技术方案进行清楚、完整的描述，显然，所描述的实施例是本实用新型的部分实施例，而不是全部实施例。基于本发明的实施例，本领域普通技术人员在没有付出创造性劳动的前提下所获得的所有其他实施例，都属于本实用新型的保护范围。In order to make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the following clearly and completely describes the technical solutions in the embodiments of the present utility model. Obviously, the described embodiments are part of the implementation of the utility model. Examples, not all examples. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without paying any creative effort belong to the protection scope of the present utility model.
在下面的描述中阐述了很多具体细节以便于充分理解本实用新型，但是本实用新型还可以采用其他不同于在此描述的其他方式来实施，本领域技术人员可以在不违背本实用新型内涵的情况下做类似推广，因此本实用新型不受下面公开的具体实施例的限制。In the following description, many specific details are set forth in order to fully understand the present invention, but the present invention can also be implemented in other ways than those described herein, and those skilled in the art can implement the present invention without violating the meaning of the present invention. Similar promotion is made under the circumstances, so the present invention is not limited by the specific embodiments disclosed below.
本实用新型较佳实施例的新型急刹警示灯如图1所示，同时参阅图2，图3，图4，图5，包括车速采集电路2，车辆加速度采集电路2包括加速度传感器IC1，加速度传感器IC1连接有控制电路3，控制电路3包括微控制器U1；加速度传感器IC1的SDA端与微控制器U1的P1.0/T2端连接，加速度传感器IC1的SCL端与微控制器U1的P1.1/T2EX端连接；微控制器U1连接有警示灯电路4，警示灯电路4包括多个发光二极管，多个发光二极管的正极均与微控制器U1的P0.0/AD0端连接；一种新型急刹警示灯还包括电源电路1，电源电路1均与车速采集电路2、控制电路3以及警示灯电路4连接；通过车辆加速度采集电路2中的加速度传感器IC1实时检测车辆的当前加速度，并将采集到的数据传给控制电路3中的微控制器U1进行分析处理，当车辆出现急速降速情况时，微控制器U1控制警示灯电路中的多个发光二极管进行闪烁以警示其它车辆，降速幅度越大发光二极管的闪烁频率就越高，利用人类本能的条件反射特征直观的通知周边车辆司机迅速降低车辆的行驶速度，与前车保持距离，减少严重追尾的事故发生，降低交通事故死亡率；车辆降速幅度减少至一定数值后急刹车信号灯停止闪烁，使其与现行普通刹车灯有相同的功能；且电源电路1能适应7-30V宽电压供电，以适应不同的使用需求；实现结构简单，成本低，体积小，适用性广泛。A new type of emergency brake warning light according to a preferred embodiment of the present invention is shown in FIG. 1, and referring to FIG. 2, FIG. 3, FIG. 4, and FIG. 5, the vehicle speed acquisition circuit 2 is included, and the vehicle acceleration acquisition circuit 2 includes the acceleration sensor IC1. A control circuit 3 is connected to the sensor IC1, and the control circuit 3 includes a microcontroller U1; the SDA terminal of the acceleration sensor IC1 is connected to the P1.0 / T2 terminal of the microcontroller U1, and the SCL terminal of the acceleration sensor IC1 is connected to P1 of the microcontroller U1 .1 / T2EX terminal connection; microcontroller U1 is connected with warning light circuit 4, warning light circuit 4 includes multiple light emitting diodes, and the positive poles of multiple light emitting diodes are connected to P0.0 / AD0 terminal of microcontroller U1; This new type of emergency brake warning light also includes a power supply circuit 1, which is connected to the vehicle speed acquisition circuit 2, the control circuit 3, and the warning light circuit 4. The acceleration sensor IC1 in the vehicle acceleration acquisition circuit 2 detects the current acceleration of the vehicle in real time. The collected data is transmitted to the microcontroller U1 in the control circuit 3 for analysis and processing. When the vehicle has a rapid speed drop, the microcontroller U1 controls multiple light emitting diodes in the warning light circuit. Blink to alert other vehicles. The larger the speed of the reduction, the higher the blinking frequency of the LED. The human instinct's conditioned reflection feature is used to intuitively notify the driver of the surrounding vehicle to quickly reduce the speed of the vehicle, keep a distance from the front vehicle, and reduce serious rear-end collisions. Accidents, reducing the fatality rate of traffic accidents; after the vehicle's speed reduction has been reduced to a certain value, the emergency braking signal light stops flashing, making it have the same function as the current ordinary brake light; and the power circuit 1 can adapt to a 7-30V wide voltage power supply, To meet different usage needs; simple structure, low cost, small size and wide applicability.
如图2所示，电源电路1包括稳压管U2，稳压管U2的VI端连接电源正极，稳压管U2的GND端与电源的负极连接；稳压管U2的VI端和GND端并联有第一电容C12；稳压管U2的VO端连接有稳压器Q1，稳压器Q1的I端、en端均与稳压管U2的VO端连接；稳压器Q1的O端连接有第二、第三电容C2、C3，第二、第三电容C2、C3的另一端均与电源的负极连接；稳压管U2为7805三端稳压管能够适应7-30V宽电压输入，以适应不同的电源电压，稳压器Q1为RT9193低压差线性稳压器，进一步确保电路的运行稳定性，提高工作效率，电路中并联有第一、第二、第三电容C12、C2、C3以进一步的提高电源电路1的运行稳定性，滤除直流电源中不需要的交流成分，使直流电平滑，使得工作更平稳。As shown in FIG. 2, the power supply circuit 1 includes a zener tube U2. The VI terminal of the zener tube U2 is connected to the positive pole of the power supply, the GND terminal of the zener tube U2 is connected to the negative pole of the power supply; the VI terminal of the zener tube U2 and the GND terminal are connected in parallel. There is a first capacitor C12; the VO terminal of the voltage regulator U2 is connected to the voltage regulator Q1, and the I and en terminals of the voltage regulator Q1 are connected to the VO terminal of the voltage regulator U2; the O terminal of the voltage regulator Q1 is connected to The other ends of the second and third capacitors C2 and C3, and the other ends of the second and third capacitors C2 and C3 are connected to the negative pole of the power supply; the voltage regulator U2 is a 7805 three-terminal voltage regulator capable of adapting to a 7-30V wide voltage input. Adapted to different power supply voltages, the regulator Q1 is an RT9193 low-dropout linear regulator, which further ensures the stability of the circuit's operation and improves the work efficiency. The first, second, and third capacitors C12, C2, and C3 are connected in parallel to the circuit. The operation stability of the power supply circuit 1 is further improved, and unnecessary AC components in the DC power supply are filtered out to smooth the DC power and make the work more stable.
如图2,3,4所示，稳压管U2的VO端与微控制器U1的VCC端连接；加速度传感器IC1的VLOGIC端、VDD端均与稳压器Q1的O端连接，结构简单，成本低。As shown in Figures 2, 3, and 4, the VO terminal of the voltage regulator U2 is connected to the VCC terminal of the microcontroller U1; the VLOGIC terminal and VDD terminal of the acceleration sensor IC1 are connected to the O terminal of the voltage regulator Q1, and the structure is simple. low cost.
如图3所示，加速度传感器IC1的SDA端连接有第一电阻R2，加速度传感器IC1的SCL端连接有第二电阻R3，第一、第二电阻R2、R3的另一端均与稳压器Q1的O端连接，采用上拉电阻确保加速度传感器IC1和微控制器U1正常通信；加速度传感器IC1的AD0端连接有第三电阻R4，第三电阻R4的另一端与电源的负极连接；加速度传感器IC1的REGOUT端连接有第四电容C5，第四电容C5的另一端与电源的负极连接，加速度传感器IC1的CPOUT端连接有第五电容C6，第五电容C6的另一端与电源的负极连接，满足加速度传感器IC1的工作需求，提高工作效率，使得运行更稳定。As shown in Figure 3, the SDA terminal of the acceleration sensor IC1 is connected to a first resistor R2, the SCL terminal of the acceleration sensor IC1 is connected to a second resistor R3, and the other ends of the first and second resistors R2 and R3 are connected to the regulator Q1. The O terminal is connected, and a pull-up resistor is used to ensure that the acceleration sensor IC1 and the microcontroller U1 communicate normally; the AD0 terminal of the acceleration sensor IC1 is connected to a third resistor R4, and the other end of the third resistor R4 is connected to the negative pole of the power supply; the acceleration sensor IC1 A fourth capacitor C5 is connected to the REGOUT terminal, the other terminal of the fourth capacitor C5 is connected to the negative electrode of the power supply, a fifth capacitor C6 is connected to the CPOUT terminal of the acceleration sensor IC1, and the other terminal of the fifth capacitor C6 is connected to the negative electrode of the power supply. Acceleration sensor IC1's working requirements improve working efficiency and make the operation more stable.
如图4所示，微控制器U1的P0.0/AD0端连接有第四电阻R6，第四电阻R6的另一端连接有场效应管Q2，场效应管Q2的栅极与第四电阻R6的另一端连接，场效应管Q2的漏极与稳压器Q1的O端连接，场效应管Q2的栅极和源极并联有第五电阻R7，场效应管Q2的源极还连接有二极管D37，二极管D37的正极与场效应管Q2的源极连接；场效应管Q2为IGR540场效应管，使用该场效应管控制警示灯电路4的电源使得控制更果断，电路损耗低；而串联二极管以利用二极管的压降特性降低电压，满足警示灯电路的使用需求。As shown in FIG. 4, the P0.0 / AD0 terminal of the microcontroller U1 is connected to a fourth resistor R6, and the other end of the fourth resistor R6 is connected to a field effect transistor Q2. The gate of the field effect transistor Q2 and the fourth resistor R6 The other end of the MOSFET Q2 is connected to the O terminal of the voltage regulator Q1. The gate and source of the MOSFET Q2 are connected in parallel with a fifth resistor R7, and the source of the MOSFET Q2 is also connected to a diode. D37, the anode of the diode D37 is connected to the source of the field effect tube Q2; the field effect tube Q2 is an IGR540 field effect tube, and the use of the field effect tube to control the power of the warning light circuit 4 makes the control more decisive and the circuit loss is lower; and the series diode In order to reduce the voltage by using the voltage drop characteristic of the diode, the use of the warning light circuit is met.
如图4所示，微控制器U1的RST端还连接有第六电容C10，第六电容C10的负极于微控制器U1的RST端连接，第六电容C10的另一端与稳压管U2的VO端连接；微控制器U1的EST端还连接有第六电阻R6，第六电阻R6的另一端与电源的负极连接；微控制器U1的EA端与稳压管U2的VO端连接；微控制器U1采用上电时复位初始化以进一步配合电子看门狗工作，提高运行稳定性；微控制器U1的EA端接高电平以使用微控制器U1的内部程序处理器，降低成本，减小体积，使得结构简单。As shown in Figure 4, the RST terminal of the microcontroller U1 is also connected to a sixth capacitor C10, the negative electrode of the sixth capacitor C10 is connected to the RST terminal of the microcontroller U1, and the other end of the sixth capacitor C10 is connected to the voltage regulator U2. The VO terminal is connected; the EST terminal of the microcontroller U1 is also connected to a sixth resistor R6, and the other end of the sixth resistor R6 is connected to the negative pole of the power supply; the EA terminal of the microcontroller U1 is connected to the VO terminal of the voltage regulator U2; The controller U1 uses the reset initialization at power-on to further cooperate with the electronic watchdog to improve the operation stability; the EA terminal of the microcontroller U1 is connected to a high level to use the internal program processor of the microcontroller U1, reducing costs and reducing The small size makes the structure simple.
如图5所示，警示灯电路4包括多个发光二极管，多个发光二极管均并联；以确保警示灯电路4不因局性的发光二极管的损坏而影响整个电路。As shown in FIG. 5, the warning light circuit 4 includes a plurality of light emitting diodes, and the plurality of light emitting diodes are connected in parallel; to ensure that the warning light circuit 4 does not affect the entire circuit due to the damage of the local light emitting diodes.
需要说明的是；该新型急刹警示灯的供电电源可以直接跟车辆的电瓶或与刹车灯信号线连接实现刹车检测，以节约电能，该新型急刹警示灯上电到正常运行仅需100ms几乎无延时，以确保实时反馈车辆的当前加速度。It should be noted that the power supply of the new emergency brake warning light can be directly connected to the vehicle's battery or the brake light signal line to achieve brake detection to save power. The new emergency brake warning light only takes about 100ms to power up and run normally. No delay to ensure real-time feedback of the vehicle's current acceleration.
应当理解的是，对本领域普通技术人员来说，可以根据上述说明加以改进或变换，而所有这些改进和变换都应属于本实用新型所附权利要求的保护范围。It should be understood that those skilled in the art can make improvements or changes according to the above description, and all these improvements and changes should fall within the protection scope of the appended claims of the present utility model.

Claims (10)

  1. 一种新型急刹警示灯，包括车辆加速度采集电路；其特征在于，所述车辆加速度采集电路包括加速度传感器，所述加速度传感器连接有控制电路，所述控制电路包括微控制器；所述加速度传感器的SDA端与所述微控制器的P1.0/T2端连接，所述加速度传感器的SCL端与所述微控制器的P1.1/T2EX端连接；所述微控制器连接有警示灯电路，所述警示灯电路包括多个发光二极管，所述多个发光二极管的正极均与所述微控制器的P0.0/AD0端连接；所述一种新型急刹警示灯还包括电源电路，所述电源电路均与所述车辆加速度采集电路、所述控制电路以及所述警示灯电路连接。A novel emergency brake warning light includes a vehicle acceleration acquisition circuit; the vehicle acceleration acquisition circuit includes an acceleration sensor, the acceleration sensor is connected to a control circuit, and the control circuit includes a microcontroller; the acceleration sensor The SDA terminal of the micro controller is connected to the P1.0 / T2 terminal of the microcontroller, and the SCL terminal of the acceleration sensor is connected to the P1.1 / T2EX terminal of the microcontroller; a warning light circuit is connected to the microcontroller The warning light circuit includes a plurality of light emitting diodes, and the anodes of the plurality of light emitting diodes are all connected to the P0.0 / AD0 terminal of the microcontroller; the new type of emergency brake warning light further includes a power circuit, The power circuit is connected to the vehicle acceleration acquisition circuit, the control circuit, and the warning light circuit.
  2. 根据权利要求1所述的新型急刹警示灯，其特征在于，所述电源电路包括稳压管，所述稳压管的VI端连接电源正极，所述稳压管的GND端与所述电源的负极连接；所述稳压管的VI端和GND端并联有第一电容；所述稳压管的VO端连接有稳压器，所述稳压器的I端、en端均与所述稳压管的VO端连接；所述稳压器的O端连接有第二、第三电容，所述第二、第三电容的另一端均与所述电源的负极连接。The novel emergency brake warning light according to claim 1, wherein the power supply circuit comprises a voltage regulator tube, a VI terminal of the voltage regulator tube is connected to a positive electrode of a power source, a GND terminal of the voltage regulator tube and the power source A negative capacitor is connected in parallel between the VI terminal and the GND terminal of the voltage regulator tube; a voltage regulator is connected to the VO terminal of the voltage regulator tube, and the I terminal and the en terminal of the voltage regulator are connected to the voltage regulator. The VO terminal of the voltage regulator tube is connected; the O terminal of the voltage regulator is connected with a second and a third capacitor, and the other ends of the second and third capacitors are connected to the negative electrode of the power source.
  3. 根据权利要求2所述的新型急刹警示灯，其特征在于，所述稳压管的VO端与所述微控制器的VCC端连接；所述加速度传感器的VLOGIC端、VDD端均与所述稳压器的O端连接。The new emergency brake warning light according to claim 2, wherein the VO terminal of the voltage regulator tube is connected to the VCC terminal of the microcontroller; and the VLOGIC terminal and the VDD terminal of the acceleration sensor are connected to the The O terminal of the voltage regulator is connected.
  4. 根据权利要求1所述的新型急刹警示灯，其特征在于，所述加速度传感器的SDA端连接有第一电阻，所述加速度传感器的SCL端连接有第二电阻，所述第一、第二电阻的另一端均与所述稳压器的O端连接；所述加速度传感器的AD0端连接有第三电阻，所述第三电阻的另一端与所述电源的负极连接；所述加速度传感器的REGOUT端连接有第四电容，所述第四电容的另一端与所述电源的负极连接，所述加速度传感器的CPOUT端连接有第五电容，所述第五电容的另一端与所述电源的负极连接。The new type of rapid warning warning light according to claim 1, wherein a first resistor is connected to the SDA terminal of the acceleration sensor, a second resistor is connected to the SCL terminal of the acceleration sensor, and the first and second The other end of the resistor is connected to the O terminal of the regulator; a third resistor is connected to the AD0 terminal of the acceleration sensor, and the other end of the third resistor is connected to the negative electrode of the power supply; A fourth capacitor is connected to the REGOUT terminal, the other terminal of the fourth capacitor is connected to the negative electrode of the power supply, a fifth capacitor is connected to the CPOUT terminal of the acceleration sensor, and the other end of the fifth capacitor is connected to the power supply. Negative connection.
  5. 根据权利要求1所述的新型急刹警示灯，其特征在于，所述微控制器的P0.0/AD0端连接有第四电阻，所述第四电阻的另一端连接有场效应管，所述场效应管的栅极与所述第四电阻的另一端连接，所述场效应管的漏极与所述稳压器的O端连接，所述场效应管的栅极和源极并联有第五电阻，所述场效应管的源极还连接有二极管，所述二极管的正极与所述场效应管的源极连接。The new type of rapid warning warning light according to claim 1, wherein a fourth resistor is connected to the P0.0 / AD0 terminal of the microcontroller, and a field effect tube is connected to the other end of the fourth resistor. The gate of the field effect tube is connected to the other end of the fourth resistor, the drain of the field effect tube is connected to the O terminal of the voltage regulator, and the gate and source of the field effect tube are connected in parallel. A fifth resistor, the source of the field effect tube is further connected with a diode, and the anode of the diode is connected with the source of the field effect tube.
  6. 根据权利要求5所述的新型急刹警示灯，其特征在于，所述微控制电路的RST端还连接有第六电容，所述第六电容的负极于所述微控制器的RST端连接，所述第六电容的另一端与所述稳压管的VO端连接；所述微控制器的EST端还连接有第六电阻，所述第六电阻的另一端与所述电源的负极连接；所述微控制器的EA端与所述稳压管的VO端连接。The new type of rapid warning warning light according to claim 5, wherein a sixth capacitor is further connected to the RST terminal of the micro control circuit, and a negative electrode of the sixth capacitor is connected to the RST terminal of the microcontroller, The other end of the sixth capacitor is connected to the VO terminal of the voltage regulator tube; the EST terminal of the microcontroller is also connected to a sixth resistor, and the other end of the sixth resistor is connected to the negative electrode of the power supply; The EA terminal of the microcontroller is connected to the VO terminal of the voltage regulator.
  7. 在此处键入权利要求项7。Type claim 7 here.
  8. 在此处键入权利要求项8。Type claim 8 here.
  9. 在此处键入权利要求项9。Type claim 9 here.
  10. 在此处键入权利要求项10。Type claim 10 here.
PCT/CN2019/070673 2018-08-14 2019-01-07 Novel emergency-braking warning lamp WO2020034562A1 (en)

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