CN203047070U - Automobile automatic turnover rearview mirror based on single chip microcomputer - Google Patents
Automobile automatic turnover rearview mirror based on single chip microcomputer Download PDFInfo
- Publication number
- CN203047070U CN203047070U CN 201220669173 CN201220669173U CN203047070U CN 203047070 U CN203047070 U CN 203047070U CN 201220669173 CN201220669173 CN 201220669173 CN 201220669173 U CN201220669173 U CN 201220669173U CN 203047070 U CN203047070 U CN 203047070U
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- China
- Prior art keywords
- back mirror
- rearview mirror
- micro controller
- controller system
- motor
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- Expired - Fee Related
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- Rear-View Mirror Devices That Are Mounted On The Exterior Of The Vehicle (AREA)
Abstract
The utility model discloses an automobile automatic turnover rearview mirror based on a single chip microcomputer. The automobile automatic turnover rearview mirror based on the single chip microcomputer comprises the single chip microcomputer, an angle sensor, a motor driver chip, a rearview mirror motor, a rearview mirror body and a displacement sensor, wherein the single chip microcomputer is sequentially connected with the motor driver chip, the rearview mirror motor, the rearview mirror body and the displacement sensor, an output end of the displacement sensor is connected with the single chip microcomputer, and the angle sensor is connected with the single chip microcomputer. Due to the fact that the high-precision linear displacement sensor is adopted to control the rotation angle of the rearview mirror body, measurement and control of the angle are more convenient and accurate. The device is compact in structure, strong in adaptability, not prone to be affected by the outside, and stability and reliability are greatly improved.
Description
Technical field
The utility model relates to a kind of automobile rearview mirror, relates in particular to a kind of SCM Based automobile back mirror that overturns automatically.
Background technology
Automobile driver because the back mirror angle is not adjusted to the right place, tends to occur the problem that is scratched by the roadside step in motor tire side, right side, even if skilled chaufeur also is difficult to avoid when operations such as the warehouse-in of moveing backward, the parking of keeping to the side.There is product to address this problem at present on the market: when automobile keeps to the side to stop, to adjust the back mirror angle automatically, so that driver's observation step situation.And normal engage a gear makes back mirror automatically revert to normal position when advancing.Its cardinal principle is to utilize timer to realize control to the back mirror anglec of rotation, namely records the motor rotational time, makes motor stop the rotation after arriving setting-up time, same time of contrarotation again when back mirror resets.This method does not have feedback element, is subjected to ectocine big, and bigger rotation error is arranged.
Summary of the invention
The purpose of this utility model is, a kind of SCM Based automobile back mirror that overturns automatically is provided, and this device is at reversing automobile or when turning, and adjusts the rotational angle of back mirror by linear displacement transducer, makes angle observing and controlling more convenient, accurate.
In order to realize above-mentioned task, the utility model adopts following technical solution to be achieved:
A kind of SCM Based automobile back mirror that overturns automatically, comprise micro controller system, angular transducer, motor drive ic, back mirror motor, back mirror, displacement pickup, wherein, micro controller system is connected successively with motor drive ic, back mirror motor, back mirror, displacement pickup, the mouth of displacement pickup connects micro controller system, and angular transducer connects micro controller system.
The utility model also has following other technologies characteristics:
Described micro controller system is the STC12C2052AD micro controller system.
Described angular transducer adopts FCA7300 steering wheel torque angular transducer.
Described motor drive ic is the L298N chip.
Described back mirror motor adopts LZ-7512 type back mirror motor.
Described displacement pickup is KTM-10mm type linear displacement transducer.
The utility model adopts the high precision linear displacement transducer to control the anglec of rotation of back mirror, makes chaufeur turn, make angle observing and controlling convenient, accurate when moveing backward; This apparatus structure compactness, comformability is strong, is not subject to ectocine, and stability and reliability have had bigger lifting.
Description of drawings
Fig. 1 is annexation scheme drawing of the present utility model.
The utility model is described in further detail below in conjunction with accompanying drawing.
The specific embodiment
Below provide specific embodiment of the utility model, need to prove that the utility model is not limited to following specific embodiment, all equivalents of doing on present techniques scheme basis all fall into protection domain of the present utility model.
Defer to technique scheme, as shown in Figure 1, a kind of SCM Based automobile back mirror that overturns automatically, comprise micro controller system, angular transducer, motor drive ic, back mirror motor, back mirror, displacement pickup, wherein, micro controller system is connected successively with motor drive ic, back mirror motor, back mirror, displacement pickup, and the mouth of displacement pickup connects micro controller system, and angular transducer connects micro controller system.
Described micro controller system adopts the STC12C2052AD micro controller system, and STC12C2052AD is the micro controller system of compatible 8051RISC type CPU core of the single clock/machine cycle of 20 pin encapsulation, and its speed is than common 8051 fast 12 times; The RAM of integrated 256 bytes on the sheet; 15 general programmable I/O mouths have the EEPROM function in the sheet; Have 2 16 bit timing device/counting machines; Inner also integrated RC oscillator, P1.7-P1.0 is totally 8 tunnel 8 imported A/D converters of high-precision high speed voltage, and speed can reach 100KHz.Micro controller system is mainly for the treatment of sensor signal and control the back mirror machine operation in the utility model.
Described angular transducer adopts FCA7300 steering wheel torque angular transducer; be installed on the vehicle steering; this sensor has the function of measuring steering torque, deflection angle and turning velocity; can adapt to various types of vehicles; possesses the overload protection ability that surpasses 10 times of the specified ranges of sensor; the user obtains the draw drum angular signal, passes to micro controller system as the foundation of Single-chip Controlling back mirror flip angle.
Described motor drive ic adopts the L298N chip, and L298N is that a kind of high potential, the large-current electric machine that ST company produces drives chip.This chip adopts the encapsulation of 15 pin, the operating voltage height, and outgoing current is big, adopts the control of standard logic level signal, includes the high-voltage large current full-bridge type actuator of two H bridges, can be used for driving DC motor and stepping motor even load.
Described sensor is linear displacement transducer KTM-10mm, and the built-in conductive plastic measuring unit of this sensor has the automatic electric grounding function, is particularly suitable for narrow and small application scenario, space, and two kinds of selections of direct outlet and five core plug sockets output are arranged.Tie rod ball has 0.5mm automatic centering function, and the tolerance limit kinematic velocity can reach 5m/s, and this sensor of the utility model is installed on the automobile rearview mirror.
Described back mirror motor adopts LZ-7512 type back mirror motor.
Chaufeur is turned or during reversing driving a car, and can obtain the angle signal of automobile turning by angular transducer, and this signal passes to micro controller system, and micro controller system can calculate the optimum anglec of rotation of back mirror by this angle signal.Linear displacement transducer passes to micro controller system with the angle of rotation displacement signal of back mirror, and the A/D modular converter that micro controller system carries is changed signal, then signal is carried out analyzing and processing.By current back mirror angle and the anglec of rotation that calculates are compared, determine hand of rotation and the anglec of rotation of back mirror, drive the rotation of back mirror motor by driving chip L298N then, the rotation of back mirror motor can drive the back mirror upset, displacement pickup and angular transducer are constantly gathered signal and are passed to micro controller system, micro controller system can be adjusted back mirror according to the signal of up-to-date collection immediately, reaches the purpose of automatically, accurately controlling back mirror.
The electronic devices and components that the utility model adopts are known product, and those skilled in the art are according to the i.e. concrete connection mode of electronic devices and components as can be known of the technical solution of the utility model.
Claims (6)
1. SCM Based automobile back mirror that overturns automatically, it is characterized in that, comprise micro controller system, angular transducer, motor drive ic, back mirror motor, back mirror, displacement pickup, wherein, micro controller system is connected successively with motor drive ic, back mirror motor, back mirror, displacement pickup, the mouth of displacement pickup connects micro controller system, and angular transducer connects micro controller system.
2. the SCM Based automobile as claimed in claim 1 back mirror that overturns automatically is characterized in that described micro controller system is the STC12C2052AD micro controller system.
3. the SCM Based automobile as claimed in claim 1 back mirror that overturns automatically is characterized in that, described angular transducer adopts FCA7300 steering wheel torque angular transducer.
4. the SCM Based automobile as claimed in claim 1 back mirror that overturns automatically is characterized in that described motor drive ic is the L298N chip.
5. the SCM Based automobile as claimed in claim 1 back mirror that overturns automatically is characterized in that, described back mirror motor adopts LZ-7512 type back mirror motor.
6. the SCM Based automobile as claimed in claim 1 back mirror that overturns automatically is characterized in that described displacement pickup is KTM-10mm type linear displacement transducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220669173 CN203047070U (en) | 2012-12-06 | 2012-12-06 | Automobile automatic turnover rearview mirror based on single chip microcomputer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220669173 CN203047070U (en) | 2012-12-06 | 2012-12-06 | Automobile automatic turnover rearview mirror based on single chip microcomputer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203047070U true CN203047070U (en) | 2013-07-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220669173 Expired - Fee Related CN203047070U (en) | 2012-12-06 | 2012-12-06 | Automobile automatic turnover rearview mirror based on single chip microcomputer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203047070U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104276093A (en) * | 2014-10-28 | 2015-01-14 | 奇瑞汽车股份有限公司 | Control system for anti-dazzle rearview mirror |
| CN104276092A (en) * | 2014-09-12 | 2015-01-14 | 大连职业技术学院 | Vehicle road merging steering blind region advanced visual control system |
-
2012
- 2012-12-06 CN CN 201220669173 patent/CN203047070U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104276092A (en) * | 2014-09-12 | 2015-01-14 | 大连职业技术学院 | Vehicle road merging steering blind region advanced visual control system |
| CN104276092B (en) * | 2014-09-12 | 2016-08-17 | 大连职业技术学院 | A kind of vehicle road turn to blind area to shift to an earlier date visible controlling system |
| CN104276093A (en) * | 2014-10-28 | 2015-01-14 | 奇瑞汽车股份有限公司 | Control system for anti-dazzle rearview mirror |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130710 Termination date: 20131206 |