CN105365671A - Brake lamp fault prompting circuit - Google Patents
Brake lamp fault prompting circuit Download PDFInfo
- Publication number
- CN105365671A CN105365671A CN201510894136.6A CN201510894136A CN105365671A CN 105365671 A CN105365671 A CN 105365671A CN 201510894136 A CN201510894136 A CN 201510894136A CN 105365671 A CN105365671 A CN 105365671A
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- circuit
- signal
- brake lamp
- brake
- switching value
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Abstract
The invention discloses a brake lamp fault prompting circuit comprising a signal acquisition circuit (1), a signal amplification circuit (2), a switching value forming circuit (3), a comparison circuit (4), and a prompting circuit (5); the signal acquisition circuit (1) collects a light signal of a brake lamp (6) and forms an electric signal, and the electric signal is sent to the signal amplification circuit (2) for amplification; an output signal of the signal amplification circuit (2) enters the switching value forming circuit (3) so as to form a switch signal representing lighting condition of the brake lamp; the comparison circuit (4) compares the switch signal with a brake switch signal so as to form an alarm signal; the prompting circuit (5) sends acousto-optic alarm information according to the alarm signal. The brake lamp fault prompting circuit can spot abnormity conditions of the brake lamp from the root (lamp body), and can sent prompting information to a driver, thus preventing the driver from continuously driving and braking without knowing the brake lamp condition, and causing accidents.
Description
Technical field
The present invention relates to a kind of fault alert circuit, specifically a kind of brake lights failure alert circuit, belongs to technical field of automotive electronics.
Background technology
Stoplight stop lamp, is generally arranged on vehicle tail, and body color is red lamp, so that the vehicle travelled is easy to find front vehicles brake, plays the object preventing rear-end collision from occurring below.So the normal work of stoplight stop lamp whether relation traffic safety, be necessary to arrange fault alert circuit to it.In prior art, the fault alert circuit one of stoplight stop lamp is simple, exactly line is drawn at stoplight stop lamp two ends and is directly connected on volt meter, realized by voltage detecting; Another kind of Measures compare is complicated: sample to the electric current flowing through stoplight stop lamp exactly, amplify, contrast and judge, this scheme also have ignored the factor of bulb self, is not very comprehensive.
Summary of the invention
The object of the invention is to provide a kind of brake lights failure alert circuit, this circuit energy complete detection stoplight stop lamp loop fault.
For achieving the above object, a kind of brake lights failure alert circuit, comprise signal acquisition circuit, signal amplification circuit, switching value formation circuit, comparator circuit and alert circuit, described signal acquisition circuit gathers the optical signal of stoplight stop lamp, form electric signal and send into signal amplification circuit and amplify, whether luminous the output signal of signal amplification circuit enter switching value and form the on-off signal that circuit forms stoplight stop lamp, this on-off signal and BK Brake Switch signal are carried out contrast and form alerting signal by comparator circuit, and alert circuit sends audible and visible alarm information according to alerting signal.
The present invention makes to find stoplight stop lamp cisco unity malfunction from root (lamp self), even if send prompting message to navigating mate, avoids chaufeur to continue to drive, brake in unwitting situation, causes the accident.
Accompanying drawing explanation
Fig. 1 is principle of the invention figure.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
As shown in Figure 1, a kind of brake lights failure alert circuit, comprise signal acquisition circuit 1, signal amplification circuit 2, switching value forms circuit 3, comparator circuit 4 and alert circuit 5, described signal acquisition circuit 1 gathers the optical signal of stoplight stop lamp 6, form electric signal and send into signal amplification circuit 2 and amplify, whether luminous the output signal of signal amplification circuit 2 enter switching value and form the on-off signal that circuit 3 forms stoplight stop lamp, this on-off signal and BK Brake Switch signal are carried out contrast and form alerting signal by comparator circuit 4, alert circuit 5 sends audible and visible alarm information according to alerting signal.
The present invention can find stoplight stop lamp cisco unity malfunction from root, even if send prompting message to navigating mate, avoids chaufeur to continue to drive, brake in unwitting situation, causes the accident.
Preferably, described signal acquisition circuit 1 is photo-transistor, and low price is effective.
Preferably, it is aerotron that described switching value forms circuit 3, low price.
Preferably, described comparator circuit 4 is NOR gate circuit, low price.
Claims (4)
1. a brake lights failure alert circuit, it is characterized in that, comprise signal acquisition circuit (1), signal amplification circuit (2), switching value forms circuit (3), comparator circuit (4) and alert circuit (5), described signal acquisition circuit (1) gathers the optical signal of stoplight stop lamp (6), form electric signal and send into signal amplification circuit (2) and amplify, whether luminous the output signal of signal amplification circuit (2) enter switching value and form the on-off signal that circuit (3) forms stoplight stop lamp, this on-off signal and BK Brake Switch signal are carried out contrast and form alerting signal by comparator circuit (4), alert circuit (5) sends audible and visible alarm information according to alerting signal.
2. brake lights failure alert circuit according to claim 1, is characterized in that, described signal acquisition circuit (1) is photo-transistor.
3. brake lights failure alert circuit according to claim 1 and 2, is characterized in that, it is aerotron that described switching value forms circuit (3).
4. the brake lights failure alert circuit according to claim 1 or 2 or 3, is characterized in that, described comparator circuit (4) is NOR gate circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510894136.6A CN105365671A (en) | 2015-12-08 | 2015-12-08 | Brake lamp fault prompting circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510894136.6A CN105365671A (en) | 2015-12-08 | 2015-12-08 | Brake lamp fault prompting circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105365671A true CN105365671A (en) | 2016-03-02 |
Family
ID=55368477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510894136.6A Pending CN105365671A (en) | 2015-12-08 | 2015-12-08 | Brake lamp fault prompting circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105365671A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108528338A (en) * | 2018-05-31 | 2018-09-14 | 常州机电职业技术学院 | Automotive lighting signal lamp failure alarm device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3545924A1 (en) * | 1984-12-25 | 1986-07-10 | Honda Motor Co., Ltd. | DEVICE FOR CONTROLLING A VEHICLE LIGHTING SYSTEM |
| CN2086225U (en) * | 1991-03-16 | 1991-10-09 | 骆扬 | Motor vehicle signal lamp breakdown detecting unit |
| DE19810512A1 (en) * | 1998-03-11 | 1999-09-16 | Bosch Gmbh Robert | Procedure for generating fault signal which indicates operating state of optical display device for showing retardation state of car |
| CN2656219Y (en) * | 2003-09-30 | 2004-11-17 | 潘传粉 | Lamplight fault alarm device for car |
| CN103786643A (en) * | 2012-11-05 | 2014-05-14 | 西安电子科技大学 | Brake light controller with functions of sparkling and making sound to alert filament disconnection |
| CN204506701U (en) * | 2015-01-14 | 2015-07-29 | 山东理工大学 | A kind of stoplight stop lamp and steering indicating light automatic trouble locating arrangements |
-
2015
- 2015-12-08 CN CN201510894136.6A patent/CN105365671A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3545924A1 (en) * | 1984-12-25 | 1986-07-10 | Honda Motor Co., Ltd. | DEVICE FOR CONTROLLING A VEHICLE LIGHTING SYSTEM |
| CN2086225U (en) * | 1991-03-16 | 1991-10-09 | 骆扬 | Motor vehicle signal lamp breakdown detecting unit |
| DE19810512A1 (en) * | 1998-03-11 | 1999-09-16 | Bosch Gmbh Robert | Procedure for generating fault signal which indicates operating state of optical display device for showing retardation state of car |
| CN2656219Y (en) * | 2003-09-30 | 2004-11-17 | 潘传粉 | Lamplight fault alarm device for car |
| CN103786643A (en) * | 2012-11-05 | 2014-05-14 | 西安电子科技大学 | Brake light controller with functions of sparkling and making sound to alert filament disconnection |
| CN204506701U (en) * | 2015-01-14 | 2015-07-29 | 山东理工大学 | A kind of stoplight stop lamp and steering indicating light automatic trouble locating arrangements |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108528338A (en) * | 2018-05-31 | 2018-09-14 | 常州机电职业技术学院 | Automotive lighting signal lamp failure alarm device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160302 |