CN105302376B - A kind of control method of tyre pressure indicator and tyre pressure indicator - Google Patents
A kind of control method of tyre pressure indicator and tyre pressure indicator Download PDFInfo
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- CN105302376B CN105302376B CN201510780704.XA CN201510780704A CN105302376B CN 105302376 B CN105302376 B CN 105302376B CN 201510780704 A CN201510780704 A CN 201510780704A CN 105302376 B CN105302376 B CN 105302376B
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Abstract
The present invention is suitable for technical field of automotive electronics, provide a kind of tyre pressure indicator, including display screen, shell, circuit board, control module, touch key-press and Trackpad, the display screen be embedded on the shell and with the circuit board electrical connection, the circuit board is placed in the shell, the touch key-press is fixedly arranged on the shell, receives to touch and send out touch signal to the Trackpad；The Trackpad adheres under the touch key-press, and the multiple switch on surface is corresponding with the touch key-press, and with the circuit board electrical connection, receive touch signal and be translated into touching position information and export to the control module；The control module is placed on the circuit board, for handling the touching position information received, and obtained functional picture information is exported and is shown to the display screen.The tyre pressure indicator is reliability and durability, material materials are few, installation and maintenance easy to produce, and beautiful and stylish.
Description
Technical field
The invention belongs to the controls of technical field of automotive electronics more particularly to a kind of tyre pressure indicator and tyre pressure indicator
Method processed.
Background technology
With the continuous development of society, automobile is more and more universal, and the ownership of automobile is increasing, and safe driving seems more
Come more important.Tyre pressure indicator is the patron saint of vehicle safety travel, it can display real-time the tire pressure and tire temperature of tire, avoid
Tyre overpressure and under-voltage, there is irreplaceable important function.
Existing tire pressure display all uses mechanical key, and the stroke length of mechanical key, reaction are slow, and service life has
Limit, Experience Degree is not high when user uses.Meanwhile mechanical key influences appearance, cannot meet the aesthetic conceptions of some consumers.
Invention content
Technical problem to be solved by the present invention lies in the controls of a kind of tyre pressure indicator of offer and tyre pressure indicator
Method, it is intended to which it is to use mechanical key, inconvenient problem with use to solve existing tire pressure display all.
The invention is realized in this way a kind of tyre pressure indicator, including display screen, shell and circuit board, the display
Screen be embedded on the shell and with the circuit board electrical connection, the circuit board is placed in the shell, and the tire pressure is shown
Device further includes control module, multiple touch key-press and Trackpad, and the multiple touch key-press is fixedly arranged on the shell, is received
It touches and sends out touch signal to the Trackpad；
The Trackpad adheres under the touch key-press, the multiple switch on surface and the multiple touch key-press one
One is corresponding, and with the circuit board electrical connection, receive touch signal and be translated into touching position information and export to described
Control module；
The control module is placed on the circuit board, for handling the touching position information received, and will generate with
The corresponding function numerical information of touching position information received, output are shown to the display screen.
Further, the control module includes touch key-press chip, main control chip and display driver chip, the touch
Button chip is connected with the main control chip, several read-write positions is arranged according to the number of touch key-press, the read-write position is used for
Whether the Petting Area of monitoring touch key-press has the information being triggered；
The main control chip is connected with the display driver chip, and periodic detection is carried out to the touch key-press chip,
Obtain read-write position information when detecting that the read-write position changes, and by read-write position information be converted to corresponding touch by
The functional information of key carries out corresponding display function processing；
The display driver chip exports current functional picture information to institute according to the display function of the main control chip
Display screen is stated to be shown.
Further, the control module further includes high-frequency reception unit and Power Management Unit, the power management list
It is first to be connected with the main control chip, it is used for the main control chip out-put supply；The high-frequency reception unit and the master control
Chip is connected, and the high-frequency signal received is exported to the main control chip.
Further, the tyre pressure indicator further includes solar panels and accumulator, and the solar panels are placed in described
The outer surface of shell, and be connected with the accumulator；The accumulator be placed in the shell and respectively with the circuit board,
Display screen is connected.
Further, the shell includes adornment frame, face-piece and bottom case, and the adornment frame is embedded on the face-piece, institute
Face-piece is stated to be fixedly arranged on the bottom case.
The present invention also provides a kind of control methods of tyre pressure indicator, including any one tire pressure as described above display dress
It sets, the control method includes the following steps：
Step A, Initialize installation is carried out to touch key-press chip；
Step B, it waits for and whether has touch information input in the interval detection touch key-press of setting, be then to obtain to touch
Key information is touched, otherwise continues waiting for and detects；
Step C, the function of corresponding touch key-press is consulted according to the touch key-press information, and according to the touch key-press
Function treatment is corresponding function numerical value；
Step D, the function numerical information is shown.
Further, the step A specifically includes following steps：
Step A1, the read-write position of corresponding digit is set according to the number of touch key-press, the read-write position is described for monitoring
Whether the Petting Area of touch key-press has touch information；
Step A2, the read-write position is set to low level, when there is touch information input, the output for reading and writing position is high electricity
It is flat.
Further, the step B specifically includes following steps：
Step B1, it sets time between interruptions and opens the scanning to touch key-press, open the function of touch key-press, simultaneously
The scanning for opening touch key-press is interrupted, and the time between interruptions is set as M milliseconds；
Step B2, judge whether to reach time between interruptions, be to detect whether touch key-press is pressed, otherwise continue
It waits for；
Step B3, when the described touch key-press is pressed, judge whether touch key-press has scanning flag, be, judge twice by
Whether be same touch key-press triggering, scanning flag and return to step B2 otherwise is arranged for the touch key-press if pressing；When touch is pressed
When key is not pressed, judge whether touch key-press reaches preset and lift the time, be to remove scanning flag, otherwise returns to step
Rapid B2；
Step B4, when it is the triggering of same touch key-press to be pressed twice, detect touch key-press duration whether
Reach the preset retention time, be, confirm touch key-press push, and remove scanning flag return to step B2, waits for next time
The triggering of touch key-press, the retention time are Y milliseconds；Otherwise direct return to step B2；
Step B5, judge touch key-press be lifted whether effectively, when all mouthfuls keep low levels for a period of time after just think
Touch key-press has lifted.
Compared with prior art, the present invention advantageous effect is：The tyre pressure indicator adheres on touch key-press
On Trackpad, and Trackpad is connected with control module, judges human body by detecting the charge movement that human finger is brought
The touch action of finger, to realize touch operation tyre pressure indicator.The tyre pressure indicator is reliability and durability, material materials
It is few, installation and maintenance easy to produce, and it is beautiful and stylish.
Description of the drawings
Fig. 1 is the structural schematic diagram of tyre pressure indicator of the present invention；
Fig. 2 is the decomposition texture schematic diagram of Fig. 1；
Fig. 3 is the composition schematic diagram of control module in tyre pressure indicator；
Fig. 4 is the touch schematic diagram of single touch key-press in tyre pressure indicator of the present invention；
Fig. 5 is the flow chart of the control method of tyre pressure indicator of the present invention；
Fig. 6 is the flow chart of touch detection.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
In conjunction with shown in Fig. 1 to Fig. 4, to invent a preferred embodiment, a kind of tyre pressure indicator, including display screen 12,
Shell 11, circuit board 16, control module 20, multiple touch key-press 13 and Trackpad 15.Display screen 12 be embedded on shell 11 and
It is electrically connected with circuit board 16, circuit board 16 is placed in shell 11, and multiple touch key-press 13 are fixedly arranged on shell 11, receives to touch simultaneously
Touch signal is sent out to Trackpad 15.Trackpad 15 adheres under touch key-press 13, and the multiple switch on surface is touched with multiple
It is corresponding one by one to touch button 13, and be electrically connected with circuit board 16, receives touch signal and to be translated into touching position information defeated
Go out to control module 20.Control module 20 is placed on circuit board 16, for handling the touching position information received, and will be generated
Function numerical information corresponding with the touching position information received, output are shown to display screen 12.Wherein, function number
Value information includes the matching function information etc. for switching machine information, the threshold information for debugging tire pressure, sensor.Do not have in touch key-press 13
When receiving touch information, display screen 12 shows the real time data of tire pressure and tire temperature.
As shown in figure 3, control module 20 includes touch key-press chip 201, main control chip 203 and display driver chip 205,
Touch key-press chip 201 is connected with main control chip 203, Trackpad 15 respectively, is arranged according to the number of touch key-press 13 several
Position is read and write, whether the Petting Area that read-write position is used to monitor touch key-press 13 has the information being triggered.Main control chip 203 drives with display
Dynamic chip 205 is connected, and periodic detection is carried out to touch key-press chip 201, obtains and reads when detecting that read-write position changes
Write bit information, and the functional information for reading and writing position information and being converted to corresponding touch key-press 13 is subjected to corresponding display function processing.
Display driver chip 201 exports current functional picture information according to the display function of main control chip 203 and is carried out to display screen 12
Display.
Control module 20 further includes high-frequency reception unit 204 and Power Management Unit 202, Power Management Unit 202 with it is main
Control chip 203 is connected, and is used for 203 out-put supply of main control chip.High-frequency reception unit 204 is connected with main control chip 203,
The high-frequency signal received is exported to main control chip 203.
Shell 11 includes adornment frame 111, face-piece 112 and bottom case 113, and adornment frame 111 is embedded on face-piece 112, face-piece 112
It is fixedly arranged on bottom case 113.In the present embodiment, there is screw hole on bottom case 113, screw column is installed on adornment frame 111, screw 20 is worn
It crosses screw hole to be locked in bottom case 113 on the screw column of adornment frame 111, the internal cavity formed is for installing circuit.Circuit
Plate 16 is fixed on by screw 20 on bottom case 113, and touch key-press 13 is close to 112 phase of face-piece.
Tyre pressure indicator further includes antenna 19, solar panels 14 and accumulator 17.Solar panels 14 are placed in shell 11
Outer surface, and be connected with accumulator 17.Antenna 19 is connected with circuit board 16.Accumulator 17 respectively with circuit board 16, display
Screen 12 is connected.Battery fixed frame is equipped in bottom case 113, accumulator 17 is placed in battery fixed frame.In the present embodiment, face-piece
Solar panels 14 are inlayed in 112 roof window, the display screen 12 on circuit board 16 is exposed in front window, and display screen 12 is fixed on circuit board
It is electrically connected on 16 and with circuit board 16.External power supply input jack 18 is provided on the side of face-piece 112, power supply, which is inserted on hole 18, to be had
The corresponding protective case 181 of the jack can be with external power supply to tyre pressure indicator in no sunlight or in the sunlight insufficient date
It charges.112 positive thickness of face-piece is more than the thickness at the back side, makes solar panels 14 inclined downward towards headstock direction,
Such structure can make 112 front of face-piece have enough thickness to accommodate display screen 12, and tilt forward structure and meet driver's cabin
The angle of inclination of front windshield at console, while can also achieve the effect that preferably to receive solar energy.
The tyre pressure indicator is used in combination with sensor, and sensor is placed in tire, passes through wireless
The data such as the tire pressure detected, temperature are transferred to tyre pressure indicator, then by the display screen in tyre pressure indicator
12 are shown.The pressure limit for the tire for needing to monitor can be debugged by operating the touch key-press 13 on tyre pressure indicator
And temperature range, and the sensor of installation is made to match with tyre pressure indicator.
As shown in figure 4, for the touch schematic diagram of single touch key-press, wherein by touch key-press 13, Trackpad 15, circuit board
16 and touch key-press chip 201 form.Touch key-press 13 is made using non-conductive mediums such as plastic cement, glass, on the surface of button
Band silk-screen.Induction metal on Trackpad 15 is corresponding with the button silk-screen region on the touch key-press 13 of plastic casing and is close to,
A signal source, which is come out, among induction metal is given to touch key-press chip 201.201 built-in capacitance measuring circuit of touch key-press chip
And high-precision logical-arithmetic unit is measured to 13 input port of each touch key-press and operation, when finger is close to touch-sensitive area
When, which can change, and when the changing value reaches the triggering threshold of touch key-press chip 201, sentence
Break to there is actuation of keys.When the variable quantity is detected by continuous and effective more than Y milliseconds, touch key-press chip 201 judges that button is dynamic
Make effective, corresponding output port meeting output key information.When finger is far from touching induction region, pair of the key-press input mouth
Ground capacitance can be restored to original value, equally when the variable quantity is detected by continuous and effective more than N milliseconds, touch key-press chip 201
Judge that touch key-press 13 leaves effectively, corresponding output port can export 13 information of no touch button.
In conjunction with shown in Fig. 5 and Fig. 6, a kind of control method of tyre pressure indicator, including the tire described in any one as above
Display device, the control method is pressed to include the following steps：
Step A, Initialize installation is carried out to touch key-press chip 201.
Step B, it waits for and whether has touch information input in the interval detection touch key-press 13 of setting, be to obtain
Touch key-press information, otherwise continues waiting for and detects.
Step C, the function of corresponding touch key-press 13 is consulted according to touch key-press information, and according to the function of touch key-press 13
Processing is corresponding function numerical value.
Step D, function numerical information is shown.
Step A specifically includes following steps：
Step A1, the read-write position of corresponding digit is set according to the number of touch key-press 13, the read-write position is tactile for monitoring
Whether the Petting Area for touching button 13 has touch information.
Step A2, read-write position is set to low level, when there is touch information input, the output for reading and writing position is high level.
Step B specifically includes following steps：
Step B1, it sets time between interruptions and opens the scanning to touch key-press 13, open the function of touch key-press 13,
The scanning for opening touch key-press 13 simultaneously is interrupted, wherein time between interruptions is set as M milliseconds.
Step B2, judge whether to reach time between interruptions, be to detect whether touch key-press 13 is pressed, otherwise continue
It waits for.
Step B3, when touch key-press 13 is pressed, judge whether touch key-press 13 has scanning flag, be, judge twice by
Whether be same touch key-press 13 trigger, scanning flag and return to step B2 otherwise is arranged for the touch key-press 13 if pressing.When tactile
When touching button 13 and being pressed, the delivery outlet level of touch key-press chip 201 is raised, and judges whether touch key-press 13 is pressed,
Judge whether the output pin of touch key-press chip 201 is high level.When touch key-press 13 is not pressed, judges to touch and press
Whether key 13, which reaches preset, is lifted the time, is to remove scanning flag, otherwise return to step B2.
Step B4, when it is that same touch key-press 13 triggers to be pressed twice, the duration of touch key-press 13 is detected
Whether reach the preset retention time, be, confirm 13 push of touch key-press, and removes scanning flag return to step B2, etc.
Wait for that the triggering of next touch key-press 13, retention time are Y milliseconds.Otherwise direct return to step B2.
Step B5, judge touch key-press 13 be lifted whether effectively, when all delivery outlets keep low level for a period of time after
Just think that touch key-press 13 has lifted.Kept for the low level time be set as N milliseconds, and the integral multiple that Y is N.
The tyre pressure indicator adheres on touch key-press on Trackpad, and Trackpad is connected with control module,
The touch action of human finger is judged by detecting the charge movement that human finger is brought, to realize touch operation tire pressure
Display device.Touch key-press does not need the mechanical contact of conventional keys, and the human body for also not using conventional metals touch directly connects
The security risk and application limitation touched sheet metal and brought.The tyre pressure indicator that touch sensible button is worked it out is reliably resistance to
With high sensitivity is beautiful and stylish, and material materials are few, installation and maintenance easy to produce.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement etc., should all be included in the protection scope of the present invention made by within refreshing and principle.
Claims (7)
1. a kind of tyre pressure indicator, including display screen, shell and circuit board, the display screen be embedded on the shell and with
The circuit board electrical connection, the circuit board are placed in the shell, which is characterized in that the tyre pressure indicator further includes control
Molding block, multiple touch key-press and Trackpad, the multiple touch key-press are fixedly arranged on the shell, receive to touch and send out tactile
Signal is touched to the Trackpad；The touch key-press is made using non-conductive medium；
The Trackpad adheres under the touch key-press, the multiple switch on surface and the multiple touch key-press phase one by one
It is corresponding, and with the circuit board electrical connection, receive touch signal and be translated into touching position information and export to the control
Module；
The control module is placed on the circuit board, for handling the touching position information received, and will be generated and be received
The corresponding function numerical information of touching position information arrived, output are shown to the display screen；
The control module includes touch key-press chip, main control chip and display driver chip, the touch key-press chip and institute
It states main control chip to be connected, several read-write positions is arranged according to the number of touch key-press, the read-write position is for monitoring touch key-press
Petting Area whether have the information being triggered；
The main control chip is connected with the display driver chip, carries out periodic detection to the touch key-press chip, is examining
It measures and obtains read-write position information when the read-write position changes, and the read-write position information is converted into corresponding touch key-press
Functional information carries out corresponding display function processing；
The display driver chip exports current functional picture information to described aobvious according to the display function of the main control chip
Display screen is shown.
2. tyre pressure indicator according to claim 1, which is characterized in that the control module further includes high-frequency reception list
Member and Power Management Unit, the Power Management Unit are connected with the main control chip, for being exported to the main control chip
Power supply；The high-frequency reception unit is connected with the main control chip, and the high-frequency signal received is exported to the master control core
Piece.
3. tyre pressure indicator according to claim 1, which is characterized in that the tyre pressure indicator further includes solar energy
Plate and accumulator, the solar panels are placed in the outer surface of the shell, and are connected with the accumulator；The accumulator is set
It is connected in the shell and respectively with the circuit board, display screen.
4. tyre pressure indicator according to claim 1, which is characterized in that the shell includes adornment frame, face-piece and bottom
Shell, the adornment frame are embedded on the face-piece, and the face-piece is fixedly arranged on the bottom case.
5. a kind of control method of tyre pressure indicator, which is characterized in that including the tire described in Claims 1-4 any one
Display device, the control method is pressed to include the following steps：
Step A, Initialize installation is carried out to touch key-press chip；
Step B, wait for and whether have touch information input in the interval detection touch key-press of setting, be obtain touch by
Otherwise key information is continued waiting for and is detected；
Step C, the function of corresponding touch key-press is consulted according to the touch key-press information, and according to the function of the touch key-press
Processing is corresponding function numerical value；
Step D, the function numerical information is shown.
6. the control method of tyre pressure indicator according to claim 5, which is characterized in that the step A is specifically included
Following steps：
Step A1, the read-write position of corresponding digit is set according to the number of touch key-press, the read-write position is for monitoring the touch
Whether the Petting Area of button has touch information；
Step A2, the read-write position is set to low level, when there is touch information input, the output for reading and writing position is high level.
7. the control method of tyre pressure indicator according to claim 5, which is characterized in that the step B is specifically included
Following steps：
Step B1, it sets time between interruptions and opens the scanning to touch key-press, open the function of touch key-press, open simultaneously
The scanning of touch key-press is interrupted, and the time between interruptions is set as M milliseconds；
Step B2, judge whether to reach time between interruptions, be to detect whether touch key-press is pressed, otherwise continue waiting for；
Step B3, when the described touch key-press is pressed, judge whether touch key-press has scanning flag, be, judge to be pressed twice
Whether it is same touch key-press triggering, scanning flag and return to step B2 otherwise is set for the touch key-press；When touch key-press does not have
When being pressed, judge whether touch key-press reaches preset and lift the time, be to remove scanning flag, otherwise return to step
B2；
Step B4, when it is same touch key-press triggering to be pressed twice, whether the duration for detecting touch key-press reaches
The preset retention time, it is to confirm touch key-press push, and remove scanning flag return to step B2, waits for touch next time
The triggering of button, the retention time are Y milliseconds；Otherwise direct return to step B2；
Step B5, judge touch key-press be lifted whether effectively, when all mouthfuls keep low levels for a period of time after just think to touch
Button has lifted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510780704.XA CN105302376B (en) | 2015-11-13 | 2015-11-13 | A kind of control method of tyre pressure indicator and tyre pressure indicator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510780704.XA CN105302376B (en) | 2015-11-13 | 2015-11-13 | A kind of control method of tyre pressure indicator and tyre pressure indicator |
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| Publication Number | Publication Date |
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| CN105302376A CN105302376A (en) | 2016-02-03 |
| CN105302376B true CN105302376B (en) | 2018-08-24 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107225921A (en) * | 2017-06-13 | 2017-10-03 | 铁将军汽车电子股份有限公司 | Automobile function servicing unit and automobile |
| CN107933216A (en) * | 2017-11-24 | 2018-04-20 | 广东菲柯特电子科技有限公司 | Solar tire pressure controller |
| CN107878127A (en) * | 2017-11-24 | 2018-04-06 | 广东菲柯特电子科技有限公司 | Tire pressure controller shell structure easy to assemble |
| CN109823122A (en) * | 2018-12-28 | 2019-05-31 | 广东菲柯特电子科技有限公司 | A kind of solar energy tire pressure device |
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| CN105302376A (en) | 2016-02-03 |
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