CN109872361A - Automobile combination meter system - Google Patents
Automobile combination meter system Download PDFInfo
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- CN109872361A CN109872361A CN201910120283.6A CN201910120283A CN109872361A CN 109872361 A CN109872361 A CN 109872361A CN 201910120283 A CN201910120283 A CN 201910120283A CN 109872361 A CN109872361 A CN 109872361A
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Abstract
The invention discloses a kind of automobile combination meter system, including control unit, revolution counter, speedometer and display unit in instrument, the revolution counter, speedometer and display unit are connect with control unit in instrument respectively；It further include scale extraction process module.The present invention is carried out binary conversion treatment after the pointer image processing that will acquire in scale extraction using gray scale subtractive method in advance again, effectively eliminates the effect of interference light, the precision of scale extraction and the accuracy of subsequent calculation processing is effectively ensured before calculating reading.
Description
Technical field
The present invention relates to instrument and equipment technical fields, more specifically, are related to a kind of automobile combination meter system.
Background technique
Existing automobile instrument image recognition technology is obtained dependent on optical imagery, is easy to be interfered by ambient light, be deposited
It identifies and extracts the problems such as difficult, calculating accuracy of reading is poor in pointer scale, and the scale extractive technique of automobile instrument hand of dial, certainly
The accuracy of guarantee subsequent processing is determined.
Summary of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of automobile combination meter systems, improve vapour
The precision that vehicle meter dial extracts, while ensure that the precision of subsequent calculation processing.
The purpose of the present invention is achieved through the following technical solutions:
A kind of automobile combination meter system, including control unit, revolution counter, speedometer and display unit in instrument, it is described
Revolution counter, speedometer and display unit are connect with control unit in instrument respectively；It further include scale extraction process module, for holding
The following process of row:
S1: using gray scale subtractive method, and measuring image D (x, y) is subtracted each other with the reference picture C (x, y) prestored, obtains pointer
Gray level image E (x, y)；
Wherein, reference picture C (x, y) in such as under type by obtaining:
Original scale image A (x, y) of the acquisition tables disk area pointer under first angle, then pointer rotates to second jiao
It spends and acquisition tables disk area pointer in original scale image B (x, y) obtains the reference of pointer-free with minimal gray comparison method
Image C (x, y), if A (x, y) > B (x, y), C (x, y)=B (x, y), otherwise C (x, y)=A (x, y)；
S2: the gray level image obtained in step S1 is subjected to binary conversion treatment；
S3: calculating total indicator reading,
aiPoint on expression graduation mark nearest on the left of pointer straight line, biIndicate nearest on the left of pointer straight line
Point on graduation mark, daiIndicate aiTo the distance of pointer straight line, dbiIndicate biTo the distance of pointer straight line, MdIndicate adjacent scale
Between read difference, θdIndicate the angle between pointer left scale line and right graduation mark, αdIndicate the folder between pointer and left scale line
Angle；
S4: the calculated result in output step S3 generates control instruction to display unit, and by control unit in instrument, such as
Fruit shows data exception, then generates controlling alarm instruction, and be issued to warning note system automatically.
Further, including rate-adaptive pacemaker line, communication CANH bus and communication CANL bus, the rate-adaptive pacemaker line and instrument
Control unit connects in table, and the communication CANH bus is connect with control unit in instrument, the communication CANL bus and instrument
Interior control unit connection.
Further, including brake troubles lamp, EPS indicator light, Rear Fog Lamp and front fog lamp, the brake troubles lamp with
Control unit connects in instrument, and the EPS indicator light is connect with control unit in instrument, and control is single in the Rear Fog Lamp and instrument
Member connection, the front fog lamp are connect with control unit in instrument.
Further, including parking braking lamp, seat belt light, full beam indicator lamp and air bag indicator light, described
Parking braking lamp is connect with control unit in instrument, and the seat belt light is connect with control unit in instrument, the distance light
Indicator light is connect with control unit in instrument, and the air bag indicator light is connect with control unit in instrument.
Further, the display unit includes 5 cun of colour TFT screens, and control is single in 5 cun of colour TFT screens and instrument
Member connection.
The beneficial effects of the present invention are:
(1) present invention improves the extraction accuracy of automobile instrument scale, while ensure that the subsequent essence for calculating reading processing
Degree.Specifically, the pointer image that the present invention before calculating reading, will acquire in scale extraction using gray scale subtractive method in advance
Binary conversion treatment is carried out after processing again, the effect of interference light can be effectively eliminated, the precision of scale extraction is effectively ensured, and
Guarantee the accuracy of subsequent calculation processing.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without any creative labor, may be used also for those of ordinary skill in the art
To obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of the embodiment of the present invention one.
Fig. 2 is the electrical schematic diagram of the embodiment of the present invention one.
Specific embodiment
Technical solution of the present invention is described in further detail with reference to the accompanying drawing, but protection scope of the present invention is not limited to
It is as described below.All features disclosed in this specification, or implicit disclosed all methods or in the process the step of, in addition to mutual
Other than the feature and/or step of repulsion, it can combine in any way.
Any feature disclosed in this specification (including any accessory claim, abstract and attached drawing), except non-specifically chatting
It states, can be replaced by other alternative features that are equivalent or have similar purpose.That is, unless specifically stated, each feature is only
It is an example in a series of equivalent or similar characteristics.
Specific embodiments of the present invention are described more fully below, it should be noted that the embodiments described herein is served only for illustrating
Illustrate, is not intended to restrict the invention.In the following description, in order to provide a thorough understanding of the present invention, a large amount of spies are elaborated
Determine details.It will be apparent, however, to one skilled in the art that: this hair need not be carried out using these specific details
It is bright.In other instances, in order to avoid obscuring the present invention, well known circuit, software or method are not specifically described.
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Before embodiment is described, need to explain some necessary terms.Such as:
If occurring describing various elements using the terms such as " first ", " second " in the application, but these elements are not answered
It is limited when by these terms.These terms are only used to distinguish an element and another element.Therefore, discussed below
" first " element can also be referred to as " second " element without departing from the teachings of the present invention.It should be understood that if referring to unitary
Part " connection " perhaps " coupled " to another element when it can be directly connected or be directly coupled to another element or can also
With there are intermediary elements.On the contrary, when referring to an element being " directly connected " or " directly coupled " to another element, then not
There are intermediary elements.
The various terms occurred in this application are used only for the purpose of description specific embodiment and are not intended as pair
Restriction of the invention, unless the context clearly indicates otherwise, otherwise singular intention also includes plural form.
When the terms " comprising " and/or " comprising " are used in this specification, these terms specify the feature, whole
The presence of body, step, operations, elements, and/or components, but be also not excluded for more than one other feature, entirety, step, operation,
The presence of component, assembly unit and/or its group and/or additional.
As shown in figures 1 and 2, a kind of automobile combination meter system, including control unit in instrument, revolution counter, speedometer and aobvious
Show that unit, the revolution counter, speedometer and display unit are connect with control unit in instrument respectively；It further include scale extraction process
Module, for executing following process:
S1: using gray scale subtractive method, and measuring image D (x, y) is subtracted each other with the reference picture C (x, y) prestored, obtains pointer
Gray level image E (x, y)；
Wherein, reference picture C (x, y) in such as under type by obtaining:
Original scale image A (x, y) of the acquisition tables disk area pointer under first angle, then pointer rotates to second jiao
It spends and acquisition tables disk area pointer in original scale image B (x, y) obtains the reference of pointer-free with minimal gray comparison method
Image C (x, y), if A (x, y) > B (x, y), C (x, y)=B (x, y), otherwise C (x, y)=A (x, y)；
S2: the gray level image obtained in step S1 is subjected to binary conversion treatment；
S3: calculating total indicator reading,
aiPoint on expression graduation mark nearest on the left of pointer straight line, biIndicate nearest on the left of pointer straight line
Point on graduation mark, daiIndicate aiTo the distance of pointer straight line, dbiIndicate biTo the distance of pointer straight line, MdIndicate adjacent scale
Between read difference, θdIndicate the angle between pointer left scale line and right graduation mark, αdIndicate the folder between pointer and left scale line
Angle；
S4: the calculated result in output step S3 generates control instruction to display unit, and by control unit in instrument, such as
Fruit shows data exception, then generates controlling alarm instruction, and be issued to warning note system automatically.
Optionally, including rate-adaptive pacemaker line, communication CANH bus and communication CANL bus, the rate-adaptive pacemaker line and instrument
Interior control unit connection, the communication CANH bus is connect with control unit in instrument, in the communication CANL bus and instrument
Control unit connection.
Optionally, including brake troubles lamp, EPS indicator light, Rear Fog Lamp and front fog lamp, the brake troubles lamp and instrument
Control unit connects in table, and the EPS indicator light is connect with control unit in instrument, control unit in the Rear Fog Lamp and instrument
Connection, the front fog lamp are connect with control unit in instrument.
Optionally, including parking braking lamp, seat belt light, full beam indicator lamp and air bag indicator light, described to stay
Vehicle Brake lamp is connect with control unit in instrument, and the seat belt light is connect with control unit in instrument, and the distance light refers to
Show that lamp is connect with control unit in instrument, the air bag indicator light is connect with control unit in instrument.
Optionally, the display unit includes 3.5 cun of colour TFT screens, control in 3.5 cun of colour TFT screens and instrument
Unit connection.
Embodiment one
As shown in figures 1 and 2, a kind of automobile combination meter system, including control unit in instrument, revolution counter, speedometer and aobvious
Show that unit, the revolution counter, speedometer and display unit are connect with control unit in instrument respectively；It further include scale extraction process
Module, for executing following process:
S1: using gray scale subtractive method, and measuring image D (x, y) is subtracted each other with the reference picture C (x, y) prestored, obtains pointer
Gray level image E (x, y)；
Wherein, reference picture C (x, y) in such as under type by obtaining:
Original scale image A (x, y) of the acquisition tables disk area pointer under first angle, then pointer rotates to second jiao
It spends and acquisition tables disk area pointer in original scale image B (x, y) obtains the reference of pointer-free with minimal gray comparison method
Image C (x, y), if A (x, y) > B (x, y), C (x, y)=B (x, y), otherwise C (x, y)=A (x, y)；
S2: the gray level image obtained in step S1 is subjected to binary conversion treatment；
S3: calculating total indicator reading,
aiPoint on expression graduation mark nearest on the left of pointer straight line, biIndicate nearest on the left of pointer straight line
Point on graduation mark, daiIndicate aiTo the distance of pointer straight line, dbiIndicate biTo the distance of pointer straight line, MdIndicate adjacent scale
Between read difference, θdIndicate the angle between pointer left scale line and right graduation mark, αdIndicate the folder between pointer and left scale line
Angle；
S4: the calculated result in output step S3 generates control instruction to display unit, and by control unit in instrument, such as
Fruit shows data exception, then generates controlling alarm instruction, and be issued to warning note system automatically.
Remaining technical characteristic in the present embodiment, those skilled in the art can flexibly be selected according to the actual situation
With with to meet different specific actual demands.It will be apparent, however, to one skilled in the art that: it need not use
These specific details realize the present invention.In other instances, in order to avoid obscuring the present invention, well known calculation is not specifically described
Method, method or system etc. limit within technical protection scope in the claimed technical solution of claims of the present invention.
For the aforementioned method embodiment, for simple description, therefore, it is stated as a series of action combinations, still
Those skilled in the art should understand that the application is not limited by the described action sequence, because according to the application, it is a certain
A little steps can be performed in other orders or simultaneously.Secondly, those skilled in the art should also know that, it is retouched in specification
The embodiment stated belongs to preferred embodiment, necessary to related movement and unit not necessarily the application.
It will be appreciated by those of skill in the art that unit described in conjunction with the examples disclosed in the embodiments of the present disclosure and
Algorithm steps can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions are actually with hard
Part or software mode execute, the specific application and design constraint depending on technical solution.Professional technician can be with
Each specific application is come to realize described function using distinct methods, but this realization should not exceed model of the invention
It encloses.
Disclosed system, module and method, may be implemented in other ways.For example, device described above
Embodiment, only schematically, for example, the division of the unit, can be only a kind of logical function partition, it is practical to realize
When there may be another division manner, such as multiple units or components can be combined or can be integrated into another system, or
Some features can be ignored or not executed.Another point, shown or discussed mutual coupling or direct-coupling or communication
Connection is it may be said that through some interfaces, the indirect coupling or communication connection of device or unit can be electrical property, mechanical or other
Form.
The unit that the discrete parts illustrates can be or can not also receive and is physically separated, shown as a unit
Component can be or can not receive physical unit, it can and it is in one place, or may be distributed over multiple network lists
In member.It can select some or all of unit therein according to the actual needs to realize the purpose of the scheme of the present embodiment.
It, can be with if the function is realized in the form of SFU software functional unit and when sold or used as an independent product
It is stored in a computer readable storage medium.Based on this understanding, technical solution of the present invention is substantially right in other words
The part of part or the technical solution that the prior art contributes can be embodied in the form of software products, the calculating
Machine software product is stored in a storage medium, including some instructions are used so that a computer equipment (can be individual
Computer, server or network equipment etc.) it performs all or part of the steps of the method described in the various embodiments of the present invention.And
Storage medium above-mentioned includes: USB flash disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory
The various media that can store program code such as device (Random Access Memory, RAM), magnetic or disk.
Those of ordinary skill in the art will appreciate that realizing all or part of the process in the method for above-described embodiment, being can
It is completed with instructing relevant hardware by computer program, the program can be stored in computer-readable storage medium
In, the program is when being executed, it may include such as the process of the embodiment of above-mentioned each method.Wherein, the storage medium can be magnetic
Dish, CD, ROM, RAM etc..
The above is only a preferred embodiment of the present invention, it should be understood that the present invention is not limited to described herein
Form should not be regarded as an exclusion of other examples, and can be used for other combinations, modifications, and environments, and can be at this
In the text contemplated scope, modifications can be made through the above teachings or related fields of technology or knowledge.And those skilled in the art institute into
Capable modifications and changes do not depart from the spirit and scope of the present invention, then all should be in the protection scope of appended claims of the present invention
It is interior.
Claims (5)
1. a kind of automobile combination meter system, which is characterized in that including control unit, revolution counter, speedometer and display in instrument
Unit, the revolution counter, speedometer and display unit are connect with control unit in instrument respectively；It further include scale extraction process mould
Block, for executing following process:
S1: using gray scale subtractive method, and measuring image D (x, y) is subtracted each other with the reference picture C (x, y) prestored, obtains pointer gray scale
Image E (x, y)；
Wherein, reference picture C (x, y) in such as under type by obtaining:
Original scale image A (x, y) of the acquisition tables disk area pointer under first angle, then pointer rotates to second angle simultaneously
Acquisition tables disk area pointer obtains the reference picture C of pointer-free with minimal gray comparison method in original scale image B (x, y)
(x, y), if A (x, y) > B (x, y), C (x, y)=B (x, y), otherwise C (x, y)=A (x, y)；
S2: the gray level image obtained in step S1 is subjected to binary conversion treatment；
S3: calculating total indicator reading,
aiPoint on expression graduation mark nearest on the left of pointer straight line, biIndicate scale nearest on the left of pointer straight line
Point on line, daiIndicate aiTo the distance of pointer straight line, dbiIndicate biTo the distance of pointer straight line, MdIt indicates to read between adjacent scale
Number difference, θdIndicate the angle between pointer left scale line and right graduation mark, αdIndicate the angle between pointer and left scale line；
S4: the calculated result in output step S3 generates control instruction to display unit, and by control unit in instrument, if aobvious
Show data exception, then generates controlling alarm instruction, and be issued to warning note system automatically.
2. a kind of automobile combination meter system according to claim 1, which is characterized in that including rate-adaptive pacemaker line, communication
CANH bus and communication CANL bus, the rate-adaptive pacemaker line connect with control unit in instrument, the communication CANH bus and
Control unit connects in instrument, and the communication CANL bus is connect with control unit in instrument.
3. a kind of automobile combination meter system according to claim 1 or 2, which is characterized in that including brake troubles lamp,
EPS indicator light, Rear Fog Lamp and front fog lamp, the brake troubles lamp are connect with control unit in instrument, the EPS indicator light with
Control unit connects in instrument, and the Rear Fog Lamp is connect with control unit in instrument, control unit in the front fog lamp and instrument
Connection.
4. a kind of automobile combination meter system according to claim 3, which is characterized in that including parking braking lamp, safety
Tape light, full beam indicator lamp and air bag indicator light, the parking braking lamp are connect with control unit in instrument, the peace
Full tape light is connect with control unit in instrument, and the full beam indicator lamp is connect with control unit in instrument, the substitute
Capsule indicator light is connect with control unit in instrument.
5. a kind of automobile combination meter system according to claim 3, which is characterized in that the display unit includes 5 cun
Colored TFT screen, 5 cun of colours TFT screen are connect with control unit in instrument.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910120283.6A CN109872361A (en) | 2019-02-18 | 2019-02-18 | Automobile combination meter system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910120283.6A CN109872361A (en) | 2019-02-18 | 2019-02-18 | Automobile combination meter system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109872361A true CN109872361A (en) | 2019-06-11 |
Family
ID=66918821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910120283.6A Withdrawn CN109872361A (en) | 2019-02-18 | 2019-02-18 | Automobile combination meter system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109872361A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110853031A (en) * | 2019-11-20 | 2020-02-28 | 航天科技控股集团股份有限公司 | Exclusive detection method for lightening of indicator light of automobile combined instrument |
| CN111951708A (en) * | 2020-07-15 | 2020-11-17 | 东风电驱动系统有限公司 | Sectional scale dynamic display method and device |
-
2019
- 2019-02-18 CN CN201910120283.6A patent/CN109872361A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110853031A (en) * | 2019-11-20 | 2020-02-28 | 航天科技控股集团股份有限公司 | Exclusive detection method for lightening of indicator light of automobile combined instrument |
| CN111951708A (en) * | 2020-07-15 | 2020-11-17 | 东风电驱动系统有限公司 | Sectional scale dynamic display method and device |
| CN111951708B (en) * | 2020-07-15 | 2022-06-17 | 东风电驱动系统有限公司 | Sectional scale dynamic display method and device |
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Application publication date: 20190611 |
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