CN112026639A - Auxiliary brake lamp - Google Patents
Auxiliary brake lamp Download PDFInfo
- Publication number
- CN112026639A CN112026639A CN202011015315.5A CN202011015315A CN112026639A CN 112026639 A CN112026639 A CN 112026639A CN 202011015315 A CN202011015315 A CN 202011015315A CN 112026639 A CN112026639 A CN 112026639A
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- Prior art keywords
- power supply
- module
- electromagnetic relay
- singlechip
- acceleration sensor
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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
- 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
- B60Q1/444—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 with indication of the braking strength or speed changes, e.g. by changing shape or intensity of the indication
Abstract
The invention discloses an auxiliary brake lamp. The existing automobile brake lamp is single in form and cannot distinguish deceleration or emergency braking. The data line and the control line of the acceleration sensor are connected with the singlechip, and the power supply module supplies power to the acceleration sensor and the singlechip for the internal circuit of the multi-path electromagnetic relay module. A plurality of signal input ends of the multi-path electromagnetic relay module are respectively and correspondingly connected with a plurality of signal output pins of the singlechip. One end of each of the LED lamps is connected with the normally open end of the corresponding multi-path electromagnetic relay, the common end of each of the multi-path electromagnetic relays is connected with one end of the power supply, and the other end of the power supply is connected with the other end of the LED lamp. The singlechip controls the on-off of a plurality of LED lamps through a plurality of electromagnetic relays. The invention monitors the speed change of the automobile in real time through the acceleration sensor, controls the switch of the corresponding LED lamp according to the acceleration, provides warning for the rear automobile and displays deceleration or emergency braking. The invention is a good complement to the existing single mode brake lights.
Description
Technical Field
The invention belongs to the technical field of sensing, and relates to an auxiliary brake lamp for reminding a rear vehicle of paying attention to evasion during emergency braking of the vehicle.
Background
In the aspect of traffic accidents, the emergency braking of the front vehicle causes the avoidance of the rear vehicle to be untimely, so that the traffic accidents are frequent, and the emergency braking is a main aspect of the traffic accidents. The front car is in order to remind the back car front brake, all has a pair of brake light in the car tail lamp, and some vehicles still are provided with high-order brake light. The working mechanism of the existing brake lamp is matched with a brake system, and the brake lamp is turned on when a brake is stepped on. The brake lamp in the form is basically in a light-on form, namely the brake lamp only has two forms of lighting and not lighting, so that more information such as sudden braking, slow braking and point braking can not be provided for a rear vehicle, and the warning effect generated when the vehicle brakes at different accelerated speeds is not considered, so that the rear vehicle is not easy to perform corresponding operation according to the indication of the brake lamp of the front vehicle. Particularly on an expressway, the speed is very fast, the front automobile is subjected to emergency braking in case of emergency, and the braking reminding reaction of the front automobile to the rear automobile is the same on the brake lamp, so that traffic accidents are easily caused.
Disclosure of Invention
The invention aims to provide an auxiliary brake lamp aiming at the defects of the prior art.
The invention comprises an acceleration sensor, a power supply module, a single chip microcomputer, a multi-path electromagnetic relay module, an LED lamp set and a power supply.
The data line and the control line of the acceleration sensor are connected with two analog pins of the singlechip; the power supply pins of the acceleration sensor, the multi-path electromagnetic relay module and the single chip microcomputer are connected with the positive output end of the power supply module, and the grounding pin is connected with the negative output end of the power supply module; the power module supplies power for the internal circuit of the multi-path electromagnetic relay module, the power supply acceleration sensor and the single chip microcomputer.
And a plurality of signal input ends of the multi-path electromagnetic relay module are respectively and correspondingly connected with a plurality of signal output pins of the single chip microcomputer, and the single chip microcomputer controls the opening and closing of each path of electromagnetic relay in the multi-path electromagnetic relay module.
The LED lamp group comprises a plurality of LED lamps which are arranged at the rear part of the automobile and longitudinally arranged in sequence, one end of each LED lamp is connected with the normally open end of a corresponding electromagnetic relay, the common end of each electromagnetic relay is connected with one end of a power supply through a power supply main switch, and the other end of the power supply is connected with the other ends of the LED lamps; the two ends of the power supply are respectively connected with the positive input end and the negative input end of the power supply module.
The single chip microcomputer controls the on and off of the LED lamps through a plurality of paths of electromagnetic relays.
Furthermore, the invention also comprises a satellite positioning module. The navigation data output pin of the satellite positioning module is connected with the data input pin of the singlechip, the interactive command input pin is connected with the command output pin of the singlechip, the power supply pin is connected with the anode output end of the power supply module, and the grounding pin is connected with the cathode output end of the power supply module.
Furthermore, the acceleration sensor adopts an ADXL345 accelerometer, the power supply module adopts an MP1584en voltage reduction power supply module, and the satellite positioning module adopts an ATGM336H-5N satellite positioning module.
According to the invention, the acceleration sensor is used for monitoring the speed change information of the automobile in real time, and the singlechip is used for controlling the switch of the corresponding LED lamp according to the value of the acceleration of the automobile, so as to provide warning for the rear vehicle. The rear vehicle can judge the brake condition of the front vehicle according to the lighting condition of the LED lamp, and whether the front vehicle decelerates or brakes suddenly. The invention is a good supplement to the existing single mode brake lamp.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Detailed Description
The invention is further described below with reference to the following figures and specific examples.
As shown in fig. 1, an auxiliary brake lamp includes an acceleration sensor C, a satellite positioning module W, a power module V, a single chip microcomputer U, a multi-path electromagnetic relay module J, LED lamp set and a power supply P.
The acceleration sensor C adopts an ADXL345 accelerometer, the satellite positioning module W adopts an ATGM336H-5N satellite positioning module, the power supply module V adopts an MP1584en voltage reduction power supply module, and the singlechip U adopts an Arduino/Genuino singlechip.
The ADXL345 accelerometer is a triaxial, digital output acceleration sensor based on the mems technology, introduced in 2009 by ADI (Analog Devices, Inc). The acceleration makes inertial mass deflect, differential capacitance unbalance to the amplitude and the acceleration of sensor output are directly proportional, have resolution ratio and sensitivity height, characteristics such as the low-power consumption size is little, mainly use on products such as human-computer interaction intelligence bracelet.
The ATGM336H-5N satellite positioning module is based on a middle-science micro fourth-generation low-power GNSS SOC single chip-AT 6558, supports various satellite navigation systems, including a BDS (Beidou satellite navigation System) in China, a GPS in the United states, a GLONASS in Russia, a GALILEO in European Union, a QZSS in Japan and a satellite augmentation system SBAS, has the advantages of high sensitivity, low power consumption, low cost and the like, and is suitable for vehicle navigation, handheld positioning, wearable equipment and the like.
The MP1584en voltage reduction power supply module can stably output +5V and +3.3V voltages.
Acceleration sensor C level sets up, and acceleration sensor C, satellite positioning module W and power module V connect singlechip U, specifically are: a data line SDA and a control line SCL of the acceleration sensor C are connected with two analog pins of the singlechip; a navigation data output pin TXD of the satellite positioning module W is connected with a data input pin D1/TX of the singlechip U, and an interactive command input pin RXD is connected with a command output pin D0/RX of the singlechip U; the power supply pin VCC of the acceleration sensor C, the satellite positioning module W and the singlechip U is connected with the positive output end OUT + of the power supply module V, the grounding pin GND of the acceleration sensor C, the satellite positioning module W and the singlechip U is connected with the negative output end OUT-of the power supply module V, and the power supply module V provides +5V power for the acceleration sensor C, the satellite positioning module W and the singlechip U.
In the embodiment, a multi-path electromagnetic relay module J comprising six paths of electromagnetic relays J1-J6 is adopted, a power supply positive input end DC + and a power supply negative input end DC-of the multi-path electromagnetic relay module J are respectively connected with a positive output end OUT + and a negative output end OUT-of a power module V, and the power module V supplies power for an internal circuit of the multi-path electromagnetic relay module J. Six signal input ends IN 1-IN 6 of the multi-path electromagnetic relay module J are respectively connected with six signal output pins of the single chip microcomputer U, the six signal input ends respectively correspond to the six paths of electromagnetic relays, and the single chip microcomputer U controls the six paths of electromagnetic relays J1-J6 to be opened and closed.
In the embodiment, the LED lamp set comprises six LED lamps (or lamp belts) L1-L6, the six LED lamps (or lamp belts) are longitudinally and sequentially arranged, and from top to bottom, the six LED lamps are respectively four LED red lamps, one LED yellow lamp and one LED yellow lamp. One end of each LED lamp is connected with the normally open end NO of the corresponding electromagnetic relay, the common ends COM of the six electromagnetic relays are connected and then connected with one end of a power supply P through a power supply main switch K, and the other end of the power supply P is connected with the other ends of the six LED lamps. Two ends of the power supply P are respectively connected with the positive input end IN + and the negative input end IN-of the power supply module V to provide input power supply. The single chip microcomputer U controls the on and off of six LED lamps through six electromagnetic relays J1-J6.
In use, six LED lamps are arranged at the rear part of an automobile, an acceleration sensor C is adjusted to be horizontal, a power supply main switch K is turned on, an auxiliary brake lamp enters a working state, the acceleration sensor C monitors automobile speed change information in real time, and a satellite positioning module W monitors automobile position information in real time.
When the automobile brakes and generates acceleration which hinders movement, the acceleration sensor C sends acceleration information measured in real time to the single chip microcomputer U. The single chip microcomputer U compares the acceleration information with a plurality of set threshold values, and if the acceleration exceeds the set threshold values, the single chip microcomputer U outputs signals to corresponding electromagnetic relays to control corresponding LED lamps (or lamp belts) to emit light.
In this implementation, six thresholds (measured in terms of acceleration of gravity g) are set:
1. when the acceleration a is larger than 0.25g, the first (lowest) lamp strip emits light;
2. when the acceleration a is larger than 0.37g, the first and the second lamp belts are enabled to emit light;
3. when the acceleration a is larger than 0.49g, the first, second and third lamp belts are enabled to emit light;
4. when the acceleration a is larger than 0.64g, the first, second, third and fourth lamp strips are enabled to emit light;
5. when the acceleration a is larger than 0.79g, enabling the first, second, third, fourth and fifth lamp strips to emit light;
6. when the acceleration a is larger than 0.87g, the first, second, third, fourth, fifth and sixth lamp belts are made to emit light.
The rear vehicle judges whether the front vehicle decelerates (slowly brakes) or brakes suddenly according to the lighting condition of the LED lamp at the rear part of the front vehicle, and makes adjustment as early as possible according to the braking condition of the front vehicle.
The satellite positioning module W sends the automobile position information obtained in real time to the single chip microcomputer U, and the position information does not change when the automobile is still. If the time that the position information is unchanged exceeds a set threshold (such as 1 minute), the single chip microcomputer U controls the LED lamps of the LED lamp set to flicker through the multi-path electromagnetic relay module J, and a vehicle behind is reminded.
The single chip microcomputer U compares acceleration information with a plurality of set threshold values, compares the time with unchanged position information with the set threshold values, outputs signals to the multi-path electromagnetic relay module J, controls switches such as a plurality of LEDs and the like, is mature technology, and can be completely realized by simple program setting according to actual needs by ordinary technicians in the field. The invention aims to realize the auxiliary brake lamp by utilizing the acceleration sensor, and is a good supplement to the existing single-mode brake lamp.
Claims (5)
1. An auxiliary brake light, characterized in that: the system comprises an acceleration sensor, a power supply module, a single chip microcomputer, a multi-path electromagnetic relay module, an LED lamp set and a power supply;
the data line and the control line of the acceleration sensor are connected with two analog pins of the singlechip; the power supply pins of the acceleration sensor, the multi-path electromagnetic relay module and the single chip microcomputer are connected with the positive output end of the power supply module, and the grounding pin is connected with the negative output end of the power supply module; the power supply module supplies power to an internal circuit of the multi-path electromagnetic relay module, the acceleration sensor and the single chip microcomputer;
a plurality of signal input ends of the multi-path electromagnetic relay module are respectively and correspondingly connected with a plurality of signal output pins of a singlechip, and the singlechip controls the opening and closing of each path of electromagnetic relay in the multi-path electromagnetic relay module;
the LED lamp group comprises a plurality of LED lamps which are arranged at the rear part of the automobile and longitudinally arranged in sequence, one end of each LED lamp is connected with the normally open end of a corresponding electromagnetic relay, the common end of each electromagnetic relay is connected with one end of a power supply through a power supply main switch, and the other end of the power supply is connected with the other ends of the LED lamps; two ends of the power supply are respectively connected with the positive input end and the negative input end of the power supply module;
the single chip microcomputer controls the on and off of the LED lamps through a plurality of paths of electromagnetic relays.
2. An auxiliary brake light as claimed in claim 1, wherein: the system also comprises a satellite positioning module;
the navigation data output pin of the satellite positioning module is connected with the data input pin of the singlechip, the interactive command input pin is connected with the command output pin of the singlechip, the power supply pin is connected with the anode output end of the power supply module, and the grounding pin is connected with the cathode output end of the power supply module.
3. An auxiliary brake light as claimed in claim 1 or 2, wherein: the acceleration sensor adopts an ADXL345 accelerometer.
4. An auxiliary brake light as claimed in claim 1 or 2, wherein: the power supply module adopts an MP1584en voltage reduction power supply module.
5. An auxiliary brake light as claimed in claim 2, wherein: the satellite positioning module adopts an ATGM336H-5N satellite positioning module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011015315.5A CN112026639A (en) | 2020-09-24 | 2020-09-24 | Auxiliary brake lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011015315.5A CN112026639A (en) | 2020-09-24 | 2020-09-24 | Auxiliary brake lamp |
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| Publication Number | Publication Date |
|---|---|
| CN112026639A true CN112026639A (en) | 2020-12-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011015315.5A Pending CN112026639A (en) | 2020-09-24 | 2020-09-24 | Auxiliary brake lamp |
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| CN (1) | CN112026639A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112550130A (en) * | 2020-12-09 | 2021-03-26 | 昌辉汽车电气系统（安徽）有限公司 | Brake lamp circuit and brake lamp capable of adjusting display mode according to automobile braking force |
-
2020
- 2020-09-24 CN CN202011015315.5A patent/CN112026639A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112550130A (en) * | 2020-12-09 | 2021-03-26 | 昌辉汽车电气系统（安徽）有限公司 | Brake lamp circuit and brake lamp capable of adjusting display mode according to automobile braking force |
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