CN203543803U - Brake lamp alarm device - Google Patents
Brake lamp alarm device Download PDFInfo
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- CN203543803U CN203543803U CN201320455356.5U CN201320455356U CN203543803U CN 203543803 U CN203543803 U CN 203543803U CN 201320455356 U CN201320455356 U CN 201320455356U CN 203543803 U CN203543803 U CN 203543803U
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Abstract
The utility model relates to a brake lamp alarm device, and aims to solve the problems of various structures, extremely high false alarm probability and high cost in the prior art. The technical scheme mainly includes that a vehicular power supply is connected with a first conduction end of a brake lamp L1 through a brake lamp switch S1, a second conduction end of the brake lamp L1 is grounded, an input end of a first input unit is connected with the second conduction end of the brake lamp L1, an output end of the first input unit is connected with an input end of a processing chip, the vehicular power supply is connected with a first conduction end of a brake lamp L2 through the brake lamp switch S1, a second conduction end of the brake lamp L2 is grounded, an input end of a second input unit is connected with the second conduction end of the brake lamp L2, an output end of the second input unit is connected with the input end of the processing chip, an output end of the processing chip is connected with an alarm unit, and a power supply detection end of the processing chip is connected with the vehicular power supply through the brake lamp switch S1. The brake lamp alarm device is simple in structure and small in electromagnetic interference.
Description
Technical field
The utility model is a kind of vehicle alarm device, particularly relates to a kind of brake lamp warning device.
Background technology
In the process of moving, when the faults such as brake lamp bulb burns out occur, user has stepped on brake pedal, but brake lamp does not work, and user at that time and do not know, while travelling in this case, if can bring danger while having rear car to closely follow, be easy to just form rear-end collision, jeopardize driving safety.
China Patent Publication No.: 102555904A, open day on July 11st, 2012, a kind of brake lamp filament damage alarming system is disclosed, it is characterized in that: it comprises ignition lock, brake switch, alarm lamp, the first magnet coil, the second magnet coil, reed switch, the first brake lamp and the second brake lamp, one end of described alarm lamp is connected with ignition lock, the other end of alarm lamp is connected with reed switch, the middle of ignition lock and alarm lamp is located in one end of brake switch, the other end of brake switch is connected with the second magnet coil with the first magnet coil respectively, one side of the first described magnet coil is provided with the first brake lamp, one side of the second described magnet coil is provided with the second brake lamp.This technical scheme structural load, although can realize warning, because structure is various, be subject to electromagnetic interference larger, wrong report probability is very high, and cost also can not be ignored, so it is imperative to develop a kind of brake lamp warning device simple in structure, that trigger accurately, can apply original device on car.
Utility model content
The purpose of this utility model is for solving current technical scheme because structure is various, and wrong report probability is very high, and the problem that cost is larger provides a kind of simple in structure, brake lamp warning device of triggering accurately, can applying original device on car.
The utility model solves the technical scheme that its technical matters adopts: a kind of brake lamp warning device, by vehicle power, powered, be used for testing brake lamp L1 and brake lamp L2, comprise the stop lamp switch S1 with brake pedal interlock, process chip, the first input block, the second input block and alarm unit, described vehicle power is connected with the first conduction terminal of brake lamp L1 by stop lamp switch S1, the second conduction terminal ground connection of brake lamp L1, the input end of described the first input block is connected with the second conduction terminal of described brake lamp L1, the mouth of the first input block is connected with the input end of process chip, described vehicle power is connected with the first conduction terminal of brake lamp L2 by stop lamp switch S1, the second conduction terminal ground connection of brake lamp L2, the input end of described the second input block is connected with the second conduction terminal of described brake lamp L2, the mouth of the second input block is connected with the input end of process chip, the mouth of process chip is connected with alarm unit, and the power supply test side of process chip is connected with vehicle power by brake switch S1.The utility model is simple in structure, triggering is accurate, can apply original device on car, and improvement cost is lower.
As preferably, described process chip is vehicle-mounted micro controller system.Vehicle-mounted micro controller system is original device on car, and improvement cost is lower.
As preferably, the first described input block comprises resistance R 1, resistance R 2, resistance R 3, resistance R 4, resistance R 5, resistance R 6, resistance R 7, amplifier U1 and amplifier U2, described resistance R 2 is clamp resistance, one end of described resistance R 2 is connected with the second conduction terminal of brake lamp L1, the other end ground connection of described resistance R 2, the first end of resistance R 1 is connected with the second conduction terminal of brake lamp L1, the second end of resistance R 1 is connected with the positive input terminal of amplifier U1, the mouth of amplifier U1 is connected with the first end of resistance R 3, the second end of resistance R 3 is by resistance R 4 ground connection, the second end of resistance R 3 is also connected with the negative input end of amplifier U1, the mouth of amplifier U1 is also connected with the positive input terminal of amplifier U2, the negative input end of amplifier U2 is connected with vehicle power by resistance R 5, the negative input end of amplifier U2 is also by resistance R 6 ground connection, the mouth of amplifier U2 is connected with vehicle power by resistance R 7, the mouth of amplifier U2 is also connected with process chip.
As preferably, the first described input block comprises resistance R 8, resistance R 9, resistance R 10, resistance R 11, resistance R 12, resistance R 13, resistance R 14, amplifier U3 and amplifier U4, described resistance R 14 is clamp resistance, one end of described resistance R 14 is connected with the second conduction terminal of brake lamp L2, the other end ground connection of described resistance R 14, the first end of resistance R 13 is connected with the second conduction terminal of brake lamp L2, the second end of resistance R 13 is connected with the positive input terminal of amplifier U4, the mouth of amplifier U4 is connected with the first end of resistance R 11, the second end of resistance R 11 is by resistance R 12 ground connection, the second end of resistance R 11 is also connected with the negative input end of amplifier U4, the mouth of amplifier U4 is also connected with the positive input terminal of amplifier U3, the negative input end of amplifier U3 is connected with vehicle power by resistance R 9, the negative input end of amplifier U3 is also by resistance R 10 ground connection, the mouth of amplifier U3 is connected with vehicle power by resistance R 8, the mouth of amplifier U3 is also connected with process chip.
As preferably, described alarm unit comprises relay K S and loud speaker S, the coil input end of described relay K S is connected with vehicle power, the coil conduction terminal of relay K S is connected with process chip, the contact of relay K S is open contact, the moving contact of described open contact is connected with vehicle power, and the break back contact of described open contact is by loud speaker S ground connection.Arrange like this, needing only vehicle-mounted micro controller system output signal can report to the police, simple in structure.
As preferably, the first input/output terminal of described vehicle-mounted micro controller system is connected with the first input block, the 5th input/output terminal of vehicle-mounted micro controller system is connected with the second input block, the 4th input/output terminal of vehicle-mounted micro controller system is connected with alarm unit, the second input/output terminal of vehicle-mounted micro controller system is connected with vehicle power by stop lamp switch S1, the 3rd input/output terminal of described vehicle-mounted micro controller system is connected with vehicle power, the 6th pin ground connection of vehicle-mounted micro controller system.
As preferably, the resistance of described resistance R 2 is 20 to 1/50th of brake lamp L1 resistance.
As preferably, the resistance of described resistance R 14 is 20 to 1/50th of brake lamp L2 resistance.
Substantial effect of the present utility model is: the utility model is simple in structure, be subject to electromagnetic interference little, triggers accurately, can apply original device on car, and improvement cost is lower.
Accompanying drawing explanation
Fig. 1 is a kind of schematic circuit diagram of the present utility model.
The specific embodiment
Below by specific embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment:
A kind of brake lamp warning device, by vehicle power, powered, be used for testing brake lamp L1 and brake lamp L2, it is characterized in that: comprise stop lamp switch S1, process chip, the first input block, the second input block and alarm unit with brake pedal interlock, vehicle power is connected with the first conduction terminal of brake lamp L1 by stop lamp switch S1, the second conduction terminal ground connection of brake lamp L1, the input end of the first input block is connected with the second conduction terminal of brake lamp L1, and the mouth of the first input block is connected with the input end of process chip; Vehicle power is connected with the first conduction terminal of brake lamp L2 by stop lamp switch S1, the second conduction terminal ground connection of brake lamp L2, the input end of the second input block is connected with the second conduction terminal of brake lamp L2, the mouth of the second input block is connected with the input end of process chip, the mouth of process chip is connected with alarm unit, and the power supply test side of process chip is connected with vehicle power by brake switch S1.The first input block comprises resistance R 1, resistance R 2, resistance R 3, resistance R 4, resistance R 5, resistance R 6, resistance R 7, amplifier U1 and amplifier U2, resistance R 2 is clamp resistance, one end of resistance R 2 is connected with the second conduction terminal of brake lamp L1, the other end ground connection of resistance R 2, the first end of resistance R 1 is connected with the second conduction terminal of brake lamp L1, the second end of resistance R 1 is connected with the positive input terminal of amplifier U1, the mouth of amplifier U1 is connected with the first end of resistance R 3, the second end of resistance R 3 is by resistance R 4 ground connection, the second end of resistance R 3 is also connected with the negative input end of amplifier U1, the mouth of amplifier U1 is also connected with the positive input terminal of amplifier U2, the negative input end of amplifier U2 is connected with vehicle power by resistance R 5, the negative input end of amplifier U2 is also by resistance R 6 ground connection, the mouth of amplifier U2 is connected with vehicle power by resistance R 7, the mouth of amplifier U2 is also connected with process chip.The first input block comprises resistance R 8, resistance R 9, resistance R 10, resistance R 11, resistance R 12, resistance R 13, resistance R 14, amplifier U3 and amplifier U4, resistance R 14 is clamp resistance, one end of resistance R 14 is connected with the second conduction terminal of brake lamp L2, the other end ground connection of resistance R 14, the first end of resistance R 13 is connected with the second conduction terminal of brake lamp L2, the second end of resistance R 13 is connected with the positive input terminal of amplifier U4, the mouth of amplifier U4 is connected with the first end of resistance R 11, the second end of resistance R 11 is by resistance R 12 ground connection, the second end of resistance R 11 is also connected with the negative input end of amplifier U4, the mouth of amplifier U4 is also connected with the positive input terminal of amplifier U3, the negative input end of amplifier U3 is connected with vehicle power by resistance R 9, the negative input end of amplifier U3 is also by resistance R 10 ground connection, the mouth of amplifier U3 is connected with vehicle power by resistance R 8, the mouth of amplifier U3 is also connected with process chip.Alarm unit comprises relay K S and loud speaker S, the coil input end of relay K S is connected with vehicle power, the coil conduction terminal of relay K S is connected with process chip, the contact of relay K S is open contact, the moving contact of open contact is connected with vehicle power, and the break back contact of open contact is by loud speaker S ground connection.The first input/output terminal of vehicle-mounted micro controller system is connected with the first input block, the 5th input/output terminal of vehicle-mounted micro controller system is connected with the second input block, the 4th input/output terminal of vehicle-mounted micro controller system is connected with alarm unit, the second input/output terminal of vehicle-mounted micro controller system is connected with vehicle power by stop lamp switch S1, the 3rd input/output terminal of vehicle-mounted micro controller system is connected with vehicle power, the 6th pin ground connection of vehicle-mounted micro controller system.The resistance of resistance R 2 is 20 to 1/50th of brake lamp L1 resistance.The resistance of resistance R 14 is 20 to 1/50th of brake lamp L2 resistance.Process chip is vehicle-mounted micro controller system.
When brake lamp is lighted, when electric current flows through clamp resistance, current potential can rise, current potential amplifies through computing amplifier, export amplifier U2 and amplifier U3 to, amplifier U2 and amplifier U3 are used as 1 pin and 5 pin that export vehicle-mounted micro controller system after comparator is used to, and now output is high level; When ignition key, opening No. 3 pin energisings of process chip starts working, now step on brake pedal, stop lamp switch S1 connects, No. 1 pin, No. 2 pins and No. 5 pins all should have high level input, if when No. 2 pins have high level input, arbitrary brake lamp damages, when No. 1 or No. 5 arbitrary pins are inputted without high level, vehicle-mounted micro controller system is connected loud speaker relay switch by No. 4 pins, and loud speaker S starts to report to the police.
Above-described embodiment is a kind of preferably scheme of the present utility model, not the utility model is done to any pro forma restriction, also has other variant and remodeling under the prerequisite that does not exceed the technical scheme that claim records.
Claims (8)
1. a brake lamp warning device, by vehicle power, powered, be used for testing brake lamp L1 and brake lamp L2, it is characterized in that: comprise stop lamp switch S1, process chip, the first input block, the second input block and alarm unit with brake pedal interlock, described vehicle power is connected with the first conduction terminal of brake lamp L1 by stop lamp switch S1, the second conduction terminal ground connection of brake lamp L1, the input end of described the first input block is connected with the second conduction terminal of described brake lamp L1, and the mouth of the first input block is connected with the input end of process chip; Described vehicle power is connected with the first conduction terminal of brake lamp L2 by stop lamp switch S1, the second conduction terminal ground connection of brake lamp L2, the input end of described the second input block is connected with the second conduction terminal of described brake lamp L2, the mouth of the second input block is connected with the input end of process chip, the mouth of process chip is connected with alarm unit, and the power supply test side of process chip is connected with vehicle power by brake switch S1.
2. brake lamp warning device according to claim 1, is characterized in that: described process chip is vehicle-mounted micro controller system.
3. brake lamp warning device according to claim 1 and 2, it is characterized in that: the first described input block comprises resistance R 1, resistance R 2, resistance R 3, resistance R 4, resistance R 5, resistance R 6, resistance R 7, amplifier U1 and amplifier U2, described resistance R 2 is clamp resistance, one end of described resistance R 2 is connected with the second conduction terminal of brake lamp L1, the other end ground connection of described resistance R 2, the first end of resistance R 1 is connected with the second conduction terminal of brake lamp L1, the second end of resistance R 1 is connected with the positive input terminal of amplifier U1, the mouth of amplifier U1 is connected with the first end of resistance R 3, the second end of resistance R 3 is by resistance R 4 ground connection, the second end of resistance R 3 is also connected with the negative input end of amplifier U1, the mouth of amplifier U1 is also connected with the positive input terminal of amplifier U2, the negative input end of amplifier U2 is connected with vehicle power by resistance R 5, the negative input end of amplifier U2 is also by resistance R 6 ground connection, the mouth of amplifier U2 is connected with vehicle power by resistance R 7, the mouth of amplifier U2 is also connected with process chip.
4. brake lamp warning device according to claim 1 and 2, it is characterized in that: the first described input block comprises resistance R 8, resistance R 9, resistance R 10, resistance R 11, resistance R 12, resistance R 13, resistance R 14, amplifier U3 and amplifier U4, described resistance R 14 is clamp resistance, one end of described resistance R 14 is connected with the second conduction terminal of brake lamp L2, the other end ground connection of described resistance R 14, the first end of resistance R 13 is connected with the second conduction terminal of brake lamp L2, the second end of resistance R 13 is connected with the positive input terminal of amplifier U4, the mouth of amplifier U4 is connected with the first end of resistance R 11, the second end of resistance R 11 is by resistance R 12 ground connection, the second end of resistance R 11 is also connected with the negative input end of amplifier U4, the mouth of amplifier U4 is also connected with the positive input terminal of amplifier U3, the negative input end of amplifier U3 is connected with vehicle power by resistance R 9, the negative input end of amplifier U3 is also by resistance R 10 ground connection, the mouth of amplifier U3 is connected with vehicle power by resistance R 8, the mouth of amplifier U3 is also connected with process chip.
5. brake lamp warning device according to claim 1 and 2, it is characterized in that: described alarm unit comprises relay K S and loud speaker S, the coil input end of described relay K S is connected with vehicle power, the coil conduction terminal of relay K S is connected with process chip, the contact of relay K S is open contact, the moving contact of described open contact is connected with vehicle power, and the break back contact of described open contact is by loud speaker S ground connection.
6. brake lamp warning device according to claim 2, it is characterized in that: the first input/output terminal of described vehicle-mounted micro controller system is connected with the first input block, the 5th input/output terminal of vehicle-mounted micro controller system is connected with the second input block, the 4th input/output terminal of vehicle-mounted micro controller system is connected with alarm unit, the second input/output terminal of vehicle-mounted micro controller system is connected with vehicle power by stop lamp switch S1, the 3rd input/output terminal of described vehicle-mounted micro controller system is connected with vehicle power, the 6th pin ground connection of vehicle-mounted micro controller system.
7. brake lamp warning device according to claim 3, is characterized in that: the resistance of described resistance R 2 is 20 to 1/50th of brake lamp L1 resistance.
8. brake lamp warning device according to claim 4, is characterized in that: the resistance of described resistance R 14 is 20 to 1/50th of brake lamp L2 resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320455356.5U CN203543803U (en) | 2013-07-29 | 2013-07-29 | Brake lamp alarm device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320455356.5U CN203543803U (en) | 2013-07-29 | 2013-07-29 | Brake lamp alarm device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203543803U true CN203543803U (en) | 2014-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320455356.5U Expired - Fee Related CN203543803U (en) | 2013-07-29 | 2013-07-29 | Brake lamp alarm device |
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| Country | Link |
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| CN (1) | CN203543803U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106274879A (en) * | 2016-08-23 | 2017-01-04 | 贵州天义电器有限责任公司 | A kind of emergency warning lamp drive circuit |
-
2013
- 2013-07-29 CN CN201320455356.5U patent/CN203543803U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106274879A (en) * | 2016-08-23 | 2017-01-04 | 贵州天义电器有限责任公司 | A kind of emergency warning lamp drive circuit |
| CN106274879B (en) * | 2016-08-23 | 2019-11-08 | 贵州天义电器有限责任公司 | A kind of warning lamp drive circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140416 Termination date: 20170729 |
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| CF01 | Termination of patent right due to non-payment of annual fee |