CN202088899U - Combined instrument of a car - Google Patents
Combined instrument of a car Download PDFInfo
- Publication number
- CN202088899U CN202088899U CN2011201621788U CN201120162178U CN202088899U CN 202088899 U CN202088899 U CN 202088899U CN 2011201621788 U CN2011201621788 U CN 2011201621788U CN 201120162178 U CN201120162178 U CN 201120162178U CN 202088899 U CN202088899 U CN 202088899U
- Authority
- CN
- China
- Prior art keywords
- mcu
- module
- main control
- combination meter
- automobile combination
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
Abstract
The utility model discloses a combined instrument of a car. The instrument comprises an MCU (master control unit), an LED (light-emitting diode) display module connected with the MCU, a signal input module connected with the MCU and used for realizing the function of a radio-and-player, a power amplifier circuit, a sound processing circuit and an audio playing circuit. Signals of the radio-and-player is transmitted to the MCU by the signal input module, then is processed by the MCU and transmitted to the sound processing circuit, and is amplified by the power amplifier circuit, and played by the audio playing circuit finally; at the same time, the MCU controls the LED display module to display the playing state information. The utility model combines the function of a radio-and-player into an original combined instrument; thereby integrates a combined instrument and a radio-and-player; saves production and development cost greatly, also saves resources and protects the environment.
Description
Technical field
The utility model relates to a kind of automobile combination meter, is meant a kind of integrated automobile combination meter of radio cassette player function especially.
Background technology
On the layout, vehicle-mounted combination instrument and vehicle-mounted radio cassette player are two independently electronic control units in the car of current vehicle electronic control unit.Current in the system design of combination instrument, be to be core, by handling from the numeral on the car with microcontroller unit MCU, analog signal, the bus communication signal, drive motor carries out the running of scale, light relevant warning indicator lamp and drive LCD and show mileage, gear or the like information.The scale of combination instrument mainly passes through step motor control.And the driving of stepping motor is considered from cost optimization, generally is integrated among the microcontroller unit MCU.In addition, in the system design of cassette car radio, be to be core with the microcontroller, by handling from the numeral on the car, analog signal, bus communication signal and handle input from user's keyboard etc. drives that the power amplifier chip is play corresponding source of sound and show corresponding radio cassette player source of sound information on LCD.
By the above, these two kinds of electronic control units are core with microcontroller unit MCU all.And the microprocessor unit MCU of combination instrument is with respect to the much main step motor drive module that is integrated in the chip of the microprocessor unit MCU of radio cassette player.Guaranteeing under the product quality and performances unmodified situation, based on allowing combination instrument and radio cassette player design-calculated cost more optimize from design, environmental protection low-carbon (LC) more, the utility model provides combination instrument and the incorporate system schema of radio cassette player.
Summary of the invention
The problem that the utility model need solve provides a kind of automobile combination meter with radio cassette player function.
The technical scheme that the utility model is taked is: a kind of automobile combination meter, comprise MCU main control module and connected LCD display module, be used to realize the signal input module of radio cassette player function, power amplifier, sound treatment circuit, audio playing circuit with MCU main control module bonded assembly;
Described signal input module is transferred to MCU by Connector Clip with the radio cassette player signal, exports to sound treatment circuit after MCU handles, and this signal amplifies through power amplifier again, plays by audio playing circuit at last; Simultaneously, the MCU control LCD display module status information that displays the play.
Concrete, described signal input module comprises SD card unit, usb interface unit, control panel unit and signals of vehicles input block.
More specifically, described signal input module and MCU main control module realize that by connector signal is interconnected.
Further, described automobile combination meter also comprises and MCU main control module bonded assembly audio broadcasting receiving wire, this antenna receives exports to the MCU main control module after audio broadcast signal is handled by the signal tuning unit, is realized playing by MCU master control module controls power amplifier, audio playing circuit.
Further, described automobile combination meter also comprises pointer meter table amount display module and stepping motor module, and MCU is by the stepping motor module and then drive pointer meter table amount display module demonstration vehicle operating information.
Further, described automobile combination meter also comprises the warning indicator lamp module, and the information that MCU sends over according to the signals of vehicles input block judges whether to drive the warning indicator lamp of warning indicator lamp module.
In sum, the utlity model has following beneficial effect: (1) combination instrument and radio cassette player integrated design, reduced quite a few electronic devices and components, saved productive costs greatly; (2) owing to the minimizing of combination instrument and the integrated back of radio cassette player module, the development efficiency of system also improves relatively; (3) use loudspeaker to replace buzzer phone to play alarm song, the sound of warning is more melodious, and the content of warning is variation and hommization more; (4) when saving cost, because the electronic devices and components usage quantity reduces, played economizing on resources, the effect of protection environment.
Description of drawings
Fig. 1 is that system of the present utility model forms structural representation.
The specific embodiment
In order to allow those skilled in the art understand the technical solution of the utility model better, the utility model is further elaborated below in conjunction with accompanying drawing.
The utility model is by adding electronic devices and components such as power amplifier chip, tuner chip and acoustic processing chip in combination instrument, make on the basis of combination instrument reservation self original function, with the integrated data handing and the controllable function thereof of radio cassette player, accomplish that combination instrument and radio cassette player are integrated.
As shown in Figure 1, automobile combination meter comprises MCU main control module and connected LCD display module, be used to realize the signal input module of radio cassette player function with the MCU bonded assembly, power amplifier, sound treatment circuit, audio playing circuit, be connected to the player of audio playing circuit, be connected to warning indicator lamp module, LCD display module and the stepping motor module of MCU main control module, and with stepping motor module bonded assembly pointer meter table amount display module; Signal input module comprises SD card unit, usb interface unit, control panel unit and signals of vehicles input block, and it realizes with MCU main control module signal interconnected by connector.
Signal input module is transferred to MCU by connector with the radio cassette player signal, exports to sound treatment circuit after MCU handles, and this signal amplifies through power amplifier again, by audio playing circuit sound is played back from loudspeaker at last; Simultaneously, MCU is by the LCD display module status information that displays the play.
Signal input module is transferred to MCU by connector with the control command that the control panel unit sends, and MCU handles the back and makes relevant operational orders such as for example volume control according to command content.
Simultaneously, the signals of vehicles input block received pulse of signal input module, logic level, and from the information such as signal on the CAN network, send to and make relevant instruction after MCU handles, as open warning indicator lamp, order stepping motor module drive pointer gauging table display module shows vehicle operating information etc.
Automobile combination meter of the present utility model also is provided with and MCU main control module bonded assembly audio broadcasting receiving wire, this antenna receives exports to the MCU main control module after audio broadcast signal is handled by the signal tuning unit, is realized playing by MCU master control module controls sound treatment circuit, power amplifier, audio playing circuit.
Automobile combination meter of the present utility model has been cancelled buzzer phone, directly use loudspeaker to play alarm song, scheme with respect to existing combination instrument uses buzzer phone to report to the police makes the sound of warning more melodious when having saved resource, and the content of warning is variation and hommization more; Simultaneously, the function of radio cassette player is integrated into automobile combination meter after, radio cassette player does not just need electronic elements such as MCU, economizes on resources more comparatively speaking, more environmental protection.
Present embodiment is a more excellent embodiment of the present utility model; need to prove; under the situation that does not deviate from the utility model spirit and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the utility model, but these changes and distortion all should belong to the protection domain of the appended claim of the utility model.
Claims (6)
1. automobile combination meter, comprise MCU main control module and connected LCD display module, it is characterized in that, also comprise the signal input module that is used to realize the radio cassette player function with MCU main control module bonded assembly, power amplifier, sound treatment circuit, audio playing circuit;
Described signal input module is transferred to MCU with the radio cassette player signal, exports to sound treatment circuit after MCU handles, and this signal amplifies through power amplifier again, plays by audio playing circuit at last; Simultaneously, the MCU control LCD display module status information that displays the play.
2. automobile combination meter according to claim 1 is characterized in that, described signal input module comprises SD card unit, usb interface unit, control panel unit and signals of vehicles input block.
3. automobile combination meter according to claim 2 is characterized in that, described signal input module and MCU main control module realize that by connector signal is interconnected.
4. automobile combination meter according to claim 3, it is characterized in that, also comprise and MCU main control module bonded assembly audio broadcasting receiving wire, this antenna receives exports to the MCU main control module after audio broadcast signal is handled by the signal tuning unit, is realized playing by MCU master control module controls power amplifier, audio playing circuit.
5. automobile combination meter according to claim 4 is characterized in that, also comprises pointer meter table amount display module and stepping motor module, and MCU is by the stepping motor module and then drive pointer meter table amount display module demonstration vehicle operating information.
6. automobile combination meter according to claim 5 is characterized in that, also comprises the warning indicator lamp module, and the information that MCU sends over according to the signals of vehicles input block judges whether to drive the warning indicator lamp of warning indicator lamp module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201621788U CN202088899U (en) | 2011-05-20 | 2011-05-20 | Combined instrument of a car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201621788U CN202088899U (en) | 2011-05-20 | 2011-05-20 | Combined instrument of a car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202088899U true CN202088899U (en) | 2011-12-28 |
Family
ID=45363986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201621788U Expired - Fee Related CN202088899U (en) | 2011-05-20 | 2011-05-20 | Combined instrument of a car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202088899U (en) |
-
2011
- 2011-05-20 CN CN2011201621788U patent/CN202088899U/en not_active Expired - Fee Related
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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: 20111228 Termination date: 20140520 |