CN110896582A - Vehicle-mounted terminal and control method of backlight module of key - Google Patents
Vehicle-mounted terminal and control method of backlight module of key Download PDFInfo
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Abstract
The present invention provides a vehicle-mounted terminal adapted to play music, the vehicle-mounted terminal comprising: at least one key with a backlight module; the envelope detection module is used for acquiring an envelope signal of the audio signal of the music; and the control module is used for receiving the envelope signal and controlling the color and/or the brightness of the backlight module according to the envelope signal so as to change the color and/or the brightness of the backlight of the key. According to the vehicle-mounted terminal provided by the invention, the color and/or the brightness of the backlight module of the key can be changed according to the change of music, so that the application and the backlight of the key can be simultaneously utilized to build the atmosphere of the carriage, and the better carriage atmosphere is realized.
Description
Technical Field
The invention relates to the field of automobiles, in particular to an automobile-mounted terminal of an automobile and a control method of a backlight module of a key capable of operating on the automobile-mounted terminal of the automobile.
Background
The vehicle terminals of modern cars often have many functions. In order to control these functions, the in-vehicle terminal is often provided with a plurality of keys. In order to enable the keys to be clearly identified by users in poor light conditions such as rainy days, when vehicles enter tunnels and at night, automobile manufacturers have started to add backlight modules to the keys on the vehicle-mounted terminals. On this basis, some automobile manufacturers pay attention to that different users have different preferences to the color and the intensity of the backlight of the keys, and then choose to equip the keys with backlight modules capable of emitting light of multiple colors with different intensities, and enable the colors and the intensities of the backlight modules to be adjusted, thereby creating better carriage atmosphere. The adjustment mode of the lighting color and the intensity of the screen key backlight module of the vehicle-mounted terminal sold on the market at present is generally manual adjustment. Some vehicle models also adjust the light emitting color of the screen button backlight module according to the driving mode. For example, when the user switches the vehicle into the sport mode, the lighting color of the key backlight module is changed from other colors to red to provide a more sports car atmosphere.
The existing method for adjusting the backlight color and intensity of the key is still simple, and the atmosphere of the carriage cannot be well improved, so that a more important method is needed to be provided
The backlight module of the button and the vehicle-mounted terminal flexibly adjust the color and the intensity of the backlight of the button so as to further improve the carriage atmosphere.
Disclosure of Invention
An object of the present invention is to provide a vehicle-mounted terminal capable of changing the color and/or brightness of a backlight module of a key according to a change of music to achieve a better car atmosphere.
In order to solve at least a part of technical problems of the present invention, the present invention provides a vehicle-mounted terminal adapted to play music, the vehicle-mounted terminal comprising: at least one key with a backlight module; the envelope detection module is used for acquiring an envelope signal of the audio signal of the music; and the control module is used for receiving the envelope signal and controlling the color and/or the brightness of the backlight module according to the envelope signal so as to change the color and/or the brightness of the backlight of the key.
In at least one embodiment of the present invention, the envelope detection module includes a digital signal processing unit that generates the envelope signal from the audio signal; the control module comprises a microcontroller which controls the color and/or brightness of the backlight module according to the envelope signal.
In at least one embodiment of the present invention, the envelope detection module is configured to transmit the envelope signal to the control module at preset time intervals; the lower limit of the preset time interval is 5 msec or 10 msec, and the upper limit of the preset time interval is 20 msec or 50 msec.
In at least one embodiment of the present invention, the controlling module controlling the color and/or brightness of the backlight module according to the envelope signal includes: generating an envelope effective intensity value according to the envelope signal; and controlling the color and/or the brightness of the backlight module according to the envelope effective intensity value. In at least one embodiment of the present invention, the control module is configured to continuously change the color of the backlight module during the duration of the envelope signal.
In at least one embodiment of the present invention, each of the backlight modules includes a plurality of light emitting units having different colors; the control module is configured to: and controlling at least one part of the plurality of light-emitting units to be intermittently turned on and off when the envelope signal is received, and enabling the turning-on and turning-off timings of the at least one part of the plurality of light-emitting units to be the same or different.
In at least one embodiment of the present invention, the control module is configured to control at least a portion of the plurality of light emitting units to maintain a current light emitting state after the envelope signal stops being received.
In order to solve at least a part of technical problems of the present invention, the present invention further provides a method for controlling a backlight module of a key, comprising the steps of: acquiring envelope signals of audio signals of music when the music is played;
and controlling the color and/or the brightness of the backlight module according to the envelope signal.
In at least one embodiment of the present invention, an envelope signal of an audio signal of music when the music is played is obtained based on a digital signal processing unit; and controlling the color and/or brightness of the backlight module according to the envelope signal based on a microcontroller.
In at least one embodiment of the present invention, the controlling the color and/or brightness of the backlight module according to the envelope signal includes: generating an envelope effective intensity value according to the envelope signal; and controlling the color and/or the brightness of the backlight module according to the envelope effective intensity value.
In at least one embodiment of the present invention, while controlling the color and/or brightness of the backlight module according to the envelope signal, the color of the backlight module is continuously changed for the duration of the envelope signal.
In at least one embodiment of the present invention, the backlight module includes a plurality of light emitting units of different colors; when the color and/or the brightness of the backlight module are controlled according to the envelope signal, at least one part of the plurality of light-emitting units is controlled to be intermittently turned on and off according to the envelope signal, and the turn-on and turn-off timings of at least one part of the plurality of light-emitting units are the same or different.
In at least one embodiment of the present invention, the backlight module includes a plurality of light emitting units having different colors; the control method further comprises the following steps: after the music stops, at least one part of the light-emitting units is maintained in the current light-emitting state.
According to the vehicle-mounted terminal and the control method of the backlight module of the key, provided by the invention, the color and/or the brightness of the backlight module of the key can be changed according to the change of music, so that the carriage atmosphere can be created by simultaneously using the application and the backlight of the key, and the better carriage atmosphere is realized.
Drawings
The above and other features, properties and advantages of the present invention will become more apparent from the following description of the embodiments with reference to the accompanying drawings, in which:
fig. 1 is a system configuration diagram of a vehicle-mounted terminal according to an embodiment of the present invention;
fig. 2 is a flowchart illustrating a method for controlling a backlight module of a key according to an embodiment of the present invention.
Detailed Description
The following discloses many different embodiments or examples for implementing the subject technology described. Specific examples of components and arrangements are described below to simplify the present disclosure, but these are merely examples and do not limit the scope of the invention. For example, if a first feature is formed over or on a second feature described later in the specification, this may include embodiments in which the first and second features are formed in direct contact, and may also include embodiments in which additional features are formed between the first and second features, such that the first and second features may not be in direct contact. Additionally, reference numerals and/or letters may be repeated among the various examples throughout this disclosure. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. Further, when a first element is described as being coupled or coupled to a second element, the description includes embodiments in which the first and second elements are directly coupled or coupled to each other, as well as embodiments in which one or more additional intervening elements are added to indirectly couple or couple the first and second elements to each other.
Referring to fig. 1, in some embodiments of the present invention, the in-vehicle terminal 10 is capable of playing music. The specific implementation of this "playing music" may be varied. Either by a separate music module or by running specific software on a general-purpose processor of the in-vehicle terminal. Referring to fig. 1, in an embodiment, the in-vehicle terminal 10 includes a car machine 1, an audio driving module 2, and a speaker 3. The vehicle 1 has an I/O interface 15. The car machine 1 is connected to the audio driving module 2 through the I/O interface 15, and can output an audio signal to the audio driving module 2 through the I/O interface 15. The audio driving module 2 decodes the audio signal, and drives the speaker 3 to play music. It is noted that this embodiment is merely exemplary, and therefore the details thereof should not be construed as limiting the invention. For example, only one speaker 3 is described in the present embodiment, but the number of speakers may be several, tens, or even more, as a matter of fact.
With continued reference to fig. 1, the in-vehicle terminal 10 has a control module 13, a first key 11, and a second key 12. The control module 13 is connected with the first key 11 and the second key 12. The first key has 11 a first backlight module 111, and the second key 12 has a second backlight module 121. At least one of the color and brightness of the first backlight module 111 and the second backlight module 121 can be changed under the control of the control module 13.
With continued reference to fig. 1, the in-vehicle terminal 10 also has an envelope detection module 14. The envelope detection module 14 is configured to obtain an envelope signal of an audio signal of music when the in-vehicle terminal 10 plays the music, and output the envelope signal. The specific method of the envelope detection block 14 obtaining the envelope signal of the audio signal of music may be various. In the present embodiment, the envelope detection module 14 obtains an audio signal of music being played when the music is played, and generates an envelope signal of the audio signal with the obtained audio signal.
Referring to fig. 1, in some embodiments, the in-vehicle terminal 10 plays music in such a manner that the controller 13 outputs an audio signal to the audio driving module 2 through the I/O interface 15. In these embodiments, the envelope detection module 14 obtains an audio signal from the controller 13 and generates an envelope signal of the audio signal with the obtained audio signal.
Referring to fig. 1 in further embodiments, the in-vehicle terminal 10 further includes a microphone 4 connected to the I/O interface 15. The microphone 4 is capable of detecting a sound signal in the vehicle compartment and converting the sound signal into an audio signal. The envelope detection module 14 is also connected to the I/O interface 15, and can receive the audio signal from the microphone 4 through the I/O interface 15, and generate an envelope signal of the audio signal.
The control module 13 is connected to an envelope detection module 14. The control module 13 is arranged to receive an envelope signal from the envelope detection module 14. On the basis, the control module 13 can control the color and/or brightness of the backlight module according to the envelope signal, that is, the color and/or brightness of the backlight of the key can be changed.
Such an arrangement may enable the color and/or brightness of the backlight module of the key to be varied according to the music. For example, when playing passion music, since the control module 13 can obtain the envelope of the passion music, the color and/or brightness of the backlight module of the key can be changed rapidly, so that the passion atmosphere is presented in the vehicle cabin.
Although one embodiment of the in-vehicle terminal of the present invention is described above, in other embodiments of the present invention, the in-vehicle terminal may have various variations in many aspects from the above-described embodiments. For example, the reason why the above-described implementation in-vehicle terminal has only two keys 11 and 12 is merely for convenience of explanation. In some other embodiments of the present invention, the in-vehicle terminal 10 has one key or three or more keys. Similarly, in some other embodiments of the present invention, each key has a plurality of backlight modules. At least some of these variations are described below in terms of several embodiments.
The specific manner in which the envelope detection module 14 obtains the envelope signal of the audio signal of the played music when the in-vehicle terminal 10 plays the music may be various. Referring to fig. 1, in some embodiments, the envelope detection module 14 includes a Digital Signal Processing (DSP) unit. The envelope detection module 14 realizes a function of generating an envelope signal from the audio signal by the digital signal processing unit.
Similarly, the specific manner of controlling the color and/or brightness of the backlight modules 111 and 121 by the control module 13 according to the envelope signal may also be varied. Referring to fig. 1, in some embodiments, the control module 13 includes a Microcontroller (MCU). The control module 13 implements with the microcontroller the function of controlling the color and/or brightness of the backlight modules 111, 121 in accordance with the received envelope signal.
The specific manner in which the envelope detection module 14 transmits the obtained envelope signal to the control module 13 may be various. In some embodiments, the envelope detection module 14 transmits the obtained envelope signal to the control module 13 continuously and in real time. In some embodiments, the envelope detection module 14 then sends the envelope signal intermittently to the control module. For example, the envelope detection module 14 packs the envelope signal and transmits the packed envelope signal to the control module 13 at preset time intervals. The preset time interval may be generally set in the range of 5 ms to 50 ms depending on the response speed, the bandwidth, and the like. For example, when a faster corresponding speed is required, the preset time interval may be set to 10 milliseconds. For another example, when bandwidth saving is required, the preset time interval may be set to 20 milliseconds.
The specific implementation form of the control module 13 controlling the color and/or brightness of the backlight modules 111 and 121 according to the envelope signal may be various. For example, in some embodiments, the control module 13 intermittently detects a peak value of the envelope signal and controls the color and/or brightness of the backlight modules 111 and 121 according to the magnitude of the peak value. In other embodiments, the control module 13 is configured to generate an envelope effective intensity value according to the envelope signal, and then control the color and/or brightness of the backlight modules 111 and 121 according to the generated envelope effective intensity value.
In some embodiments, the control module 13 is configured to continuously change the color of the backlight module 111, 121 during the duration of the envelope signal. It is noted that "continuously" is to be understood in a broad sense here. For example, in one embodiment, the control module 13 continuously changes the color of the backlight modules 111, 121 at a frequency of once every 5 seconds. This way of controlling the control module 13 should also be understood as "continuously changing the color of the backlight modules 111, 121".
In some embodiments, to achieve a change in color, the backlight modules 111, 121 are configured to have a plurality of light emitting units of different colors. The control module 13 is configured to be able to control at least some of the plurality of light-emitting units of the backlight modules 111, 121 to be intermittently turned on and off upon receiving the envelope signal, and to make timings of turning on and off at least some of the light-emitting units the same or different. For example, the backlight module 111 has three light emitting units of red, green, and blue. The control module 13 controls the green and blue light emitting units of the backlight module 111 to be alternately turned on and off when receiving a certain envelope signal, so that the red light emitting unit is always turned on and off simultaneously with the blue light emitting unit. In the foregoing example, the backlight module 111 has three light emitting units of red, green, and blue colors only for convenience of description. In other embodiments, the backlight modules 111 and 121 have more light emitting units.
In some embodiments, the control module 13 is configured to enable at least a part of the plurality of light emitting units of the backlight module 111, 121 to maintain the current light emitting state after the envelope signal stops being received, i.e. after the music stops being received. The arrangement is such that when music stops, the backlight condition of the keys is fixed to the condition when music stops. So that the current atmosphere can be maintained in the vehicle compartment without abrupt changes.
Although the above embodiments are all with respect to the in-vehicle terminal, the present invention is not limited to the in-vehicle terminal. Some embodiments of the invention relate to a control method of a backlight module of a key. Some of these embodiments are described below with reference to fig. 2.
Referring to fig. 2, a method for controlling a backlight module of a key according to some embodiments of the present invention includes the steps of:
in step 10, music being played is detected. This detection step may be implemented in a dedicated module or hardware, or by running special software on a general-purpose processor, or by adding special instructions to the software. For example, it may be implemented as an envelope detection module or a digital signal processing chip. Also for example, it may be implemented by inserting a specific command in the music playing software or adding a specific software module to the music playing software.
It is noted that this step is not essential, for example in some embodiments the envelope signal of the audio signal of the music may be obtained directly, thus eliminating the need for the step of detecting the music being played.
On the other hand, before this step, other further steps may also be performed, such as performing a "start" step. In this step, it is determined whether music is being played. For example, a user inputs an instruction to play music by pressing a button, touching a touch screen, or the like, and the user may consider that music is being played at that time when receiving the instruction. As another example, it is detected that when the music player starts to operate, music is considered to be being played.
In step 20, an envelope signal of the audio signal of the music being played is obtained. The specific method of obtaining the envelope signal of the audio signal of music may be various. For example, an audio signal of music may be obtained first, and then an envelope signal of the audio signal may be obtained. The envelope signal of the audio signal of the music can also be directly obtained.
In step 30, the color and/or brightness of the backlight module of the key is controlled according to the obtained envelope signal. In this step, the specific manner of controlling the color and/or brightness of the backlight module according to the envelope signal may be various. For example, in some embodiments, the peak value of the envelope signal is detected intermittently, and then the color and/or brightness of the backlight module is controlled according to the magnitude of the obtained peak value.
In other embodiments, the method for controlling the color and/or brightness of the backlight module of the key according to the envelope signal includes generating an envelope effective intensity value according to the envelope signal, and then controlling the color and/or brightness of the backlight module 111, 121 according to the generated envelope effective intensity value.
Although the control method of the backlight module of the key of the present embodiment is as described above, the control method of the backlight module of the key of the present invention can be changed in many ways. At least some of these variations are described below in terms of several embodiments.
In the step of obtaining the envelope signal of the audio signal of music, that is, in step 20, a specific method of obtaining the envelope of the audio signal of music may be various. For example, an audio signal of music being played is obtained by reading, recording, and the like, and then an envelope signal of the audio signal is generated by an envelope detection module. With continued reference to fig. 2, in some embodiments, the manner of obtaining the envelope signal is based on the digital signal processing unit obtaining the envelope signal of the audio signal of the music when the music is played. For example, an audio signal of music is obtained, and then the audio signal of music is detected by the digital signal processing unit to generate an envelope signal of the audio signal of music.
Accordingly, the specific manner of controlling the color and/or brightness of the backlight module according to the envelope signal may be various, that is, the specific implementation manner of step 30 may be various. In some embodiments, the specific manner of controlling the color and/or brightness of the backlight module according to the envelope signal is based on a microcontroller controlling the color and/or brightness of the backlight module according to the envelope signal. For example, a microcontroller receives the envelope signal and controls the color and/or brightness of the backlight module according to the received envelope signal.
Optionally, in some embodiments, in the step of controlling the color and/or brightness of the backlight module according to the envelope signal, that is, in step 30, the color of the backlight module is continuously changed during the duration of the envelope signal. It is noted that "continuously" is to be understood in a broad sense here. For example, in one embodiment, when the color of the backlight module is changed at a frequency of once every 5 seconds in the step of controlling the color and/or the brightness of the backlight module according to the envelope signal, it is also understood that the color of the backlight module is continuously changed.
In some embodiments, the backlight module of the key comprises a plurality of light emitting units with different colors. In the step of controlling the color and/or brightness of the backlight module according to the envelope signal, that is, in step 30, when the color and/or brightness of the backlight module is controlled, at least a part of the light emitting units is intermittently turned on and off. And the lighting and extinguishing time of at least one part of the light-emitting units is the same or different. For example, the backlight module has three light emitting units of red, green, and blue. In step 30, the light-emitting units of green and blue are alternately turned on and off so that the light-emitting unit of red is always turned on and off simultaneously with the light-emitting unit of blue.
The control method of the backlight module of the key-press can be used for controlling the backlight module in various ways after the music stops. For example, in some embodiments, all backlight modules are caused to emit light of a predetermined color and/or brightness after music has stopped. In some embodiments, after the music is stopped, step 40 is performed, and in step 40, at least a part of the light emitting units of the backlight module is maintained in a current light emitting state. That is, the lighting state immediately before the music is finished is maintained. The arrangement is such that when music stops, the backlight condition of the key stops at the condition when music stops or the like. Such a setting enables the current atmosphere to be maintained in the vehicle compartment without abrupt changes. The termination of the "maintaining" may be the termination after the "maintaining" is performed for a specific time period, or the termination may be the termination after the "maintaining" is performed until the "ending" command of the user is received.
Although the present invention has been disclosed in terms of the preferred embodiment, it is not intended to limit the invention, and variations and modifications may be made by one skilled in the art without departing from the spirit and scope of the invention. Therefore, any modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are within the protection scope defined by the claims of the present invention, unless the technical essence of the present invention departs from the content of the present invention.
Claims (13)
1. A vehicle-mounted terminal adapted to play music, comprising:
at least one key with a backlight module;
the envelope detection module is used for acquiring an envelope signal of the audio signal of the music; and
and the control module is used for receiving the envelope signal and controlling the color and/or the brightness of the backlight module according to the envelope signal so as to change the color and/or the brightness of the backlight of the key.
2. The in-vehicle terminal according to claim 1, wherein the envelope detection module includes a digital signal processing unit that generates the envelope signal from the audio signal;
the control module comprises a microcontroller, and the microcontroller controls the color and/or the brightness of the backlight module according to the envelope signal.
3. The in-vehicle terminal according to claim 1, wherein the envelope detection module is configured to transmit the envelope signal to the control module at preset time intervals;
the lower limit of the preset time interval is 5 msec or 10 msec, and the upper limit of the preset time interval is 20 msec or 50 msec.
4. The vehicle-mounted terminal according to claim 1, wherein the control module controls the color and/or brightness of the backlight module according to the envelope signal comprises:
generating an envelope effective intensity value according to the envelope signal;
and controlling the color and/or the brightness of the backlight module according to the envelope effective intensity value.
5. The in-vehicle terminal of claim 1, wherein the control module is configured to continuously change the color of the backlight module during the duration of the envelope signal.
6. The in-vehicle terminal according to claim 1, wherein each of the backlight modules includes a plurality of light emitting units different in color;
the control module is configured to:
and controlling at least one part of the plurality of light-emitting units to be intermittently turned on and off when the envelope signal is received, and enabling the turning-on and turning-off of at least one part of the plurality of light-emitting units to be at the same time or different times.
7. The vehicle-mounted terminal according to claim 6, wherein the control module is configured to control at least a part of the plurality of light-emitting units to maintain a current light-emitting state after the envelope signal stops being received.
8. A control method of a backlight module of a key is characterized by comprising the following steps:
acquiring envelope signals of audio signals of music when the music is played;
and controlling the color and/or the brightness of the backlight module according to the envelope signal.
9. The control method according to claim 8, wherein an envelope signal of an audio signal of music when the music is played is obtained based on the digital signal processing unit;
and controlling the color and/or brightness of the backlight module according to the envelope signal based on a microcontroller.
10. The method according to claim 9, wherein the controlling the color and/or brightness of the backlight module according to the envelope signal comprises:
generating an envelope effective intensity value according to the envelope signal;
and controlling the color and/or the brightness of the backlight module according to the envelope effective intensity value.
11. The method according to claim 8, wherein the color of the backlight module is continuously changed during the duration of the envelope signal when the color and/or brightness of the backlight module is controlled according to the envelope signal.
12. The control method according to claim 8, wherein the backlight module comprises a plurality of light emitting units of different colors;
when the color and/or the brightness of the backlight module are controlled according to the envelope signal, at least one part of the plurality of light-emitting units is controlled to be intermittently turned on and off according to the envelope signal, and the turn-on and turn-off time of at least one part of the plurality of light-emitting units is the same or different.
13. The control method according to claim 8, wherein the backlight module comprises a plurality of light emitting units with different colors;
the control method further comprises the following steps: after the music is stopped, maintaining at least one part of the plurality of light-emitting units in a current light-emitting state.
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| CN201810958560.6A CN110896582A (en) | 2018-08-22 | 2018-08-22 | Vehicle-mounted terminal and control method of backlight module of key |
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| CN201810958560.6A CN110896582A (en) | 2018-08-22 | 2018-08-22 | Vehicle-mounted terminal and control method of backlight module of key |
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| CN201810958560.6A Pending CN110896582A (en) | 2018-08-22 | 2018-08-22 | Vehicle-mounted terminal and control method of backlight module of key |
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