Vehicle and control method and device of dipped headlight thereof
阅读说明：本技术 车辆及其近光灯的控制方法和装置 (Vehicle and control method and device of dipped headlight thereof ) 是由 吴厚计 班平宝 杨守超 郭鹏伟 赵国泰 曲恒伟 石刚 于 2019-11-28 设计创作，主要内容包括：本发明提出一种车辆及其近光灯的控制方法和装置,所述方法包括：获取当前车辆前方积水区域的第一位置信息和对向车辆的第二位置信息；根据第一位置信息确定防眩目区域；根据第二位置信息判断对向车辆是否位于防眩目区域内；若是,则对当前车辆的近光灯进行防眩目控制。本发明的控制方法,能够避免地面积水对对向来车驾驶员造成眩目,提升车辆行驶的安全性。(The invention provides a vehicle and a method and a device for controlling a dipped headlight thereof, wherein the method comprises the following steps: acquiring first position information of a water accumulation area in front of a current vehicle and second position information of an opposite vehicle; determining an anti-glare area according to the first position information; judging whether the opposite vehicle is positioned in the anti-glare area or not according to the second position information; and if so, carrying out anti-dazzle control on the dipped headlight of the current vehicle. The control method can avoid dazzling of the opposite vehicle drivers by the accumulated water on the ground, and improve the driving safety of the vehicle.)
1. A method of controlling a low beam light of a vehicle, comprising:
acquiring first position information of a water accumulation area in front of a current vehicle and second position information of an opposite vehicle;
determining an anti-glare area according to the first position information;
judging whether the opposite vehicle is positioned in the anti-dazzle area or not according to the second position information;
and if so, carrying out anti-dazzle control on the dipped headlight of the current vehicle.
2. The method of claim 1, wherein the first location information comprises: a first maximum direction angle of the water-collecting area with respect to the current vehicle, a first minimum direction angle of the water-collecting area with respect to the current vehicle, a maximum distance of the water-collecting area with respect to the current vehicle, and a minimum distance of the water-collecting area with respect to the current vehicle.
3. The method of claim 1, wherein determining an anti-glare area from the first location information comprises:
determining an arc-shaped area bounded by the first maximum and minimum direction angles with a radius of 2 times the maximum distance and 2 times the minimum distance as the anti-glare area.
4. The method of claim 3, wherein the second location information comprises: a second maximum directional angle of the oncoming vehicle with respect to the current vehicle, a second minimum directional angle of the oncoming vehicle with respect to the current vehicle, and a relative distance of the oncoming vehicle with respect to the current vehicle.
5. The method of claim 4, wherein the determining whether the oncoming vehicle is located within the anti-glare area from the second location information comprises:
and if the second maximum direction angle is larger than the difference value between the first minimum direction angle and a preset first angle, the second minimum direction angle is smaller than the sum value of the first maximum direction angle and a preset second angle, and the relative distance is equal to or larger than 2 times of the minimum distance and equal to or smaller than 2 times of the maximum distance, judging that the opposite vehicle is positioned in the anti-glare area.
6. The method of claim 1, wherein the anti-glare control of the low beam light of the current vehicle comprises:
turning off a low beam lamp which dazzles the oncoming vehicle.
7. The method of claim 6, wherein prior to turning off a low beam that dazzles the oncoming vehicle, further comprising:
determining a low beam that dazzles the oncoming vehicle based on the second maximum and minimum directional angles, the third maximum and minimum directional angles of the low beam illumination.
8. The method of claim 1, wherein the obtaining first position information of a water-collecting area in front of a current vehicle and second position information of an oncoming vehicle comprises:
determining whether the water accumulation area and the oncoming vehicle are present ahead of the current vehicle;
and if so, acquiring the first position information and the second position information.
9. A control device for a low beam light of a vehicle, characterized by comprising:
the acquisition module is used for acquiring first position information of a water accumulation area in front of a current vehicle and second position information of an opposite vehicle;
a determining module for determining an anti-glare area according to the first position information;
the judging module is used for judging whether the opposite vehicle is positioned in the anti-dazzle area according to the second position information;
and the control module is used for carrying out anti-dazzle control on the dipped headlight of the current vehicle if the opposite vehicle is positioned in the anti-dazzle area.
10. A vehicle, characterized by comprising: a control device for a low beam light of a vehicle as claimed in claim 9.
Technical Field
The invention relates to the technical field of vehicles, in particular to a control method of a vehicle dipped headlight, a control device of the vehicle dipped headlight and a vehicle with the control device.
Background
When a vehicle runs in rainy or snowy days, because accumulated water on the road can be generated and reflects light rays under the irradiation of automobile light, drivers who face the vehicle are dazzled, and then traffic accidents are easily caused, so that great potential safety hazards exist in driving in rainy and snowy days.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art.
Therefore, a first object of the present invention is to provide a method for controlling a vehicle dipped headlight, which can prevent the glare of the oncoming vehicle driver caused by the ground water accumulation, and improve the driving safety of the vehicle.
A second object of the present invention is to provide a control device for a low beam of a vehicle.
A third object of the invention is to propose a vehicle.
To achieve the above object, an embodiment of a first aspect of the present invention provides a control method for a low beam light of a vehicle, including: acquiring first position information of a water accumulation area in front of a current vehicle and second position information of an opposite vehicle; determining an anti-glare area according to the first position information; judging whether the opposite vehicle is positioned in the anti-dazzle area or not according to the second position information; and if so, carrying out anti-dazzle control on the dipped headlight of the current vehicle.
According to the control method of the low beam light of the vehicle, the first position information of the water accumulation area in front of the current vehicle and the second position information of the opposite vehicle are acquired, the anti-dazzle area is determined according to the first position information, and whether the opposite vehicle is located in the anti-dazzle area is judged according to the second position information, wherein when the opposite vehicle is located in the anti-dazzle area, the anti-dazzle control is carried out on the low beam light of the current vehicle. Therefore, the method can avoid dazzling of the opposite vehicle drivers by the ground water accumulation, and improves the driving safety of the vehicle.
In addition, the control method of the low beam light of the vehicle proposed according to the above-described embodiment of the present invention may also have the following additional technical features:
according to an embodiment of the invention, the first location information comprises: a first maximum direction angle of the water-collecting area with respect to the current vehicle, a first minimum direction angle of the water-collecting area with respect to the current vehicle, a maximum distance of the water-collecting area with respect to the current vehicle, and a minimum distance of the water-collecting area with respect to the current vehicle.
According to an embodiment of the present invention, the determining an anti-glare area according to the first location information includes: determining an arc-shaped area bounded by the first maximum and minimum direction angles with a radius of 2 times the maximum distance and 2 times the minimum distance as the anti-glare area.
According to an embodiment of the invention, the second location information comprises: a second maximum directional angle of the oncoming vehicle with respect to the current vehicle, a second minimum directional angle of the oncoming vehicle with respect to the current vehicle, and a relative distance of the oncoming vehicle with respect to the current vehicle.
According to an embodiment of the present invention, the determining whether the oncoming vehicle is located within the anti-glare area from the second position information includes: and if the second maximum direction angle is larger than the difference value between the first minimum direction angle and a preset first angle, the second minimum direction angle is smaller than the sum value of the first maximum direction angle and a preset second angle, and the relative distance is equal to or larger than 2 times of the minimum distance and equal to or smaller than 2 times of the maximum distance, judging that the opposite vehicle is positioned in the anti-glare area.
According to one embodiment of the present invention, the anti-glare control of the low beam light of the present vehicle includes: turning off a low beam lamp which dazzles the oncoming vehicle.
According to an embodiment of the present invention, before turning off the low beam light that dazzles the oncoming vehicle, the method further includes: determining a low beam that dazzles the oncoming vehicle based on the second maximum and minimum directional angles, the third maximum and minimum directional angles of the low beam illumination.
According to one embodiment of the present invention, the acquiring first position information of a water accumulation area in front of a current vehicle and second position information of an oncoming vehicle includes: determining whether the water accumulation area and the oncoming vehicle are present ahead of the current vehicle; and if so, acquiring the first position information and the second position information.
In order to achieve the above object, a second aspect of the present invention provides a control device for a low beam light of a vehicle, comprising: the acquisition module is used for acquiring first position information of a water accumulation area in front of a current vehicle and second position information of an opposite vehicle; a determining module for determining an anti-glare area according to the first position information; the judging module is used for judging whether the opposite vehicle is positioned in the anti-dazzle area according to the second position information; and the control module is used for carrying out anti-dazzle control on the dipped headlight of the current vehicle if the opposite vehicle is positioned in the anti-dazzle area.
According to the control device of the vehicle low-beam lamp, the acquisition module acquires first position information of a water accumulation area in front of the current vehicle and second position information of the opposite vehicle, the determination module determines the anti-dazzle area according to the first position information, the judgment module judges whether the opposite vehicle is located in the anti-dazzle area according to the second position information, and if the opposite vehicle is located in the anti-dazzle area, the control module performs anti-dazzle control on the low-beam lamp of the current vehicle. Therefore, the device can prevent the accumulated water on the ground from dazzling the driver of the oncoming vehicle, and improve the driving safety of the vehicle.
In addition, the control device for the low beam light of the vehicle according to the above embodiment of the present invention may further have the following additional technical features:
according to an embodiment of the invention, the first location information comprises: a first maximum direction angle of the water-collecting area with respect to the current vehicle, a first minimum direction angle of the water-collecting area with respect to the current vehicle, a maximum distance of the water-collecting area with respect to the current vehicle, and a minimum distance of the water-collecting area with respect to the current vehicle.
According to an embodiment of the invention, the determining module determines the anti-glare area according to the first location information, in particular to: determining an arc-shaped area bounded by the first maximum and minimum direction angles with a radius of 2 times the maximum distance and 2 times the minimum distance as the anti-glare area.
According to an embodiment of the invention, the second location information comprises: a second maximum directional angle of the oncoming vehicle with respect to the current vehicle, a second minimum directional angle of the oncoming vehicle with respect to the current vehicle, and a relative distance of the oncoming vehicle with respect to the current vehicle.
According to an embodiment of the present invention, the determining module determines whether the oncoming vehicle is located within the anti-glare area according to the second position information, and is specifically configured to: and if the second maximum direction angle is larger than the difference value between the first minimum direction angle and a preset first angle, the second minimum direction angle is smaller than the sum value of the first maximum direction angle and a preset second angle, and the relative distance is equal to or larger than 2 times of the minimum distance and equal to or smaller than 2 times of the maximum distance, judging that the opposite vehicle is positioned in the anti-glare area.
According to one embodiment of the invention, the control module performs anti-glare control on the low beam light of the current vehicle, in particular to: turning off a low beam lamp which dazzles the oncoming vehicle.
According to one embodiment of the present invention, the control module, before turning off a low beam glare to the oncoming vehicle, is further configured to: determining a low beam that dazzles the oncoming vehicle based on the second maximum and minimum directional angles, the third maximum and minimum directional angles of the low beam illumination.
According to one embodiment of the invention, the acquiring module acquires first position information of a water accumulation area in front of a current vehicle and second position information of an opposite vehicle, and is specifically configured to: determining whether the water accumulation area and the oncoming vehicle are present ahead of the current vehicle; and if so, acquiring the first position information and the second position information.
In order to achieve the above object, a third aspect of the present invention provides a vehicle including the above vehicle low beam control device.
According to the vehicle provided by the embodiment of the invention, through the control device of the vehicle dipped headlight, the situation that ground water dazzles an oncoming vehicle driver can be avoided, and the driving safety of the vehicle is improved.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a flowchart of a control method of a vehicle low beam lamp according to an embodiment of the present invention;
FIG. 2 is a schematic illustration of the water accumulation anti-glare principle according to an embodiment of the present invention;
FIG. 3 is a flow diagram of a low beam light anti-glare function activation process according to one embodiment of the present invention;
FIG. 4 is a schematic diagram of an LED low beam according to one embodiment of the present invention;
FIG. 5 is a schematic diagram of a vehicle low beam light being turned off in accordance with one embodiment of the present invention;
fig. 6 is a block schematic diagram of a control device for a low beam light of a vehicle according to an embodiment of the present invention; and
FIG. 7 is a block schematic diagram of a vehicle according to an embodiment of the invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
A control method of a vehicle low beam lamp, a control device of a vehicle low beam lamp, and a vehicle having the control device of an embodiment of the present invention are described below with reference to the drawings.
Fig. 1 is a flowchart of a control method of a low beam lamp of a vehicle according to an embodiment of the present invention.
As shown in fig. 1, the control method of the vehicle low beam light of the embodiment of the present invention may include the steps of:
and S1, acquiring first position information of the water accumulation area in front of the current vehicle and second position information of the opposite vehicle.
According to an embodiment of the present invention, the first location information may include: the vehicle driving device comprises a first maximum direction angle of the water accumulation area relative to the current vehicle, a first minimum direction angle of the water accumulation area relative to the current vehicle, a maximum distance of the water accumulation area relative to the current vehicle and a minimum distance of the water accumulation area relative to the current vehicle.
Specifically, the example is given by taking the vehicle as the center, the traveling direction as the ordinate, the lateral traveling direction as the abscissa, and the left side and the right side of the traveling direction of the vehicle as the positive and negative sides. As shown in fig. 2, a camera acquisition module acquires a road area Water area, processes an image, and acquires a maximum direction angle MaxAngle _ Water, a minimum direction angle MinAngle _ Water, a maximum distance MaxDist _ Water, and a minimum distance minidist _ Water.
Further, according to an embodiment of the present invention, acquiring first position information of a water accumulation area in front of a current vehicle and second position information of an oncoming vehicle includes: determining whether a water accumulation area and an opposite vehicle exist in front of the current vehicle; and if so, acquiring the first position information and the second position information.
That is, if the camera capture module does not capture an image of the area of the roadway, subsequent control logic need not be executed.
And S2, determining the anti-dazzle area according to the first position information.
According to one embodiment of the present invention, determining an anti-glare area according to the first location information includes: an arc-shaped region having a radius of 2 times the maximum distance and 2 times the minimum distance and bounded by the first maximum and minimum direction angles is determined as the anti-glare region.
Specifically, also taking fig. 2 as an example, because the distance between the anti-glare region and the host vehicle is twice the distance between the water-collecting region and the host vehicle due to the relationship of light refraction, the anti-glare region is an arc region having a radius of 2 times the maximum distance between the water-collecting region and the host vehicle, 2 times the minimum distance between the water-collecting region and the host vehicle, and a boundary of the water-collecting region and the host vehicle at the maximum direction angle and the water-collecting region and the host vehicle at the minimum direction angle, as shown in the lower right corner of fig. 2.
And S3, judging whether the opposite vehicle is positioned in the anti-dazzle area according to the second position information.
And S4, if yes, performing anti-dazzle control on the dipped headlight of the current vehicle.
In one embodiment of the present invention, the second location information may include: the second maximum direction angle of the oncoming vehicle with respect to the current vehicle, the second minimum direction angle of the oncoming vehicle with respect to the current vehicle, and the relative distance of the oncoming vehicle with respect to the current vehicle.
According to an embodiment of the present invention, determining whether the oncoming vehicle is located within the anti-glare area from the second position information includes: and if the second maximum direction angle is larger than the difference value between the first minimum direction angle and the preset first angle, the second minimum direction angle is smaller than the sum value of the first maximum direction angle and the preset second angle, and the relative distance is equal to or larger than 2 times of the minimum distance and equal to or smaller than 2 times of the maximum distance, judging that the opposite vehicle is positioned in the anti-glare area.
Specifically, whether the dipped headlight anti-glare function is activated or not is judged by detecting whether accumulated water exists on the road surface or not and whether an oncoming vehicle exists or not according to the camera acquisition module. Secondly, whether the camera detects that four angles, namely the maximum direction angle MaxAngle _ Water of the ponding area and the host Vehicle, the minimum direction angle MinAngle _ Water of the ponding area and the host Vehicle, the maximum direction angle MaxAngle _ Vehicle of the opposite Vehicle and the host Vehicle and the minimum direction angle MinAngle _ Vehicle of the opposite Vehicle and the host Vehicle, satisfy the following relations are judged: MaxAngle _ Vehicle is less than or equal to MinAngle _ Water-Angle _ Thd1, or MinAngle _ Vehicle is more than or equal to MaxAngle _ Water + Angle _ Thd2, if the conditions are met, the low-beam light anti-dazzling function is not activated; otherwise, whether the camera acquisition module detects that the maximum distance MaxList _ Water of the ponding area relative to the Vehicle, the minimum distance MinDist _ Water of the ponding area relative to the current Vehicle and the distance Dist _ Vehicle of the oncoming Vehicle and the Vehicle meet the conditions is continuously judged: 2 min Dist _ Water is not less than Dist _ Vehicle is not less than 2 MaxDist _ Water, if yes, it is determined that the oncoming Vehicle is located in the anti-glare area, and the low-beam light anti-glare function is activated, as shown in fig. 3 specifically.
It should be noted that Angle _ Thd1 and Angle _ Thd2 are calibration matching values, mainly for considering the effects of delay or dynamic change, etc., and preventing the driver of the oncoming vehicle from being dazzled due to the non-activated function, and Angle _ Thd1 and Angle _ Thd2 are values greater than 0, and suitable data can be calibrated and matched through actual tests.
If the entire oncoming Vehicle is on the left side of the host Vehicle, maxagle _ Vehicle > MinAngle _ Vehicle > 0.
According to one embodiment of the present invention, anti-glare control of a low beam light of a current vehicle includes: the low beam light that dazzles the oncoming vehicle is turned off.
Further, according to an embodiment of the present invention, before turning off the low beam light that dazzles the oncoming vehicle, the method further includes: determining a low beam that dazzles the oncoming vehicle based on the second maximum angle of direction, the second minimum angle of direction, the third maximum angle of direction of low beam illumination, and the third minimum angle of direction of low beam illumination.
Specifically, the low beam lamps of a general vehicle are arranged in a single piece, and as shown in fig. 4, 12 LED lamps are assumed, and when the direction of the LED sorting direction shown in fig. 4 is the driving direction seen by the driver, the LEDs and the like are arranged from left to right in the order of 1 to 12. Since the LED lamps are in a single-row physical structure, from left to right, the serial numbers of the LED lamps are respectively LED 1-
According to the maximum direction angle MaxAngle _ Vehicle of the opposite Vehicle and the host Vehicle, the minimum direction angle MinAngle _ Vehicle of the opposite Vehicle and the host Vehicle, the maximum direction angles MaxAngle _ LED 1-MaxAngle _ LED12 irradiated by the LED lamps corresponding to the serial numbers 1-12 and the minimum direction angle MinAngle _ LED 1-MinAngle _ LED12, the LED lamps needing to be turned off are determined so as to prevent dazzling the driver of the opposite Vehicle.
The maximum direction angle maxagle _ Vehicle of the opposite Vehicle and the Vehicle is used as an independent variable, the maximum direction angles maxagle _ LED 1-maxagle _ LED12 irradiated by the LED lamps corresponding to the numbers 1-12 are used as axes, the corresponding LED lamp numbers are used as table output values, and the LED lamp numbers corresponding to the maximum direction angles of the opposite Vehicle and the Vehicle are small values, so the minimum value of the critical LED lamp obtained by table lookup calculation is LED _ Num _ Min.
The minimum direction angle MinAngle _ Vehicle of the opposite Vehicle and the Vehicle is used as an independent variable, the minimum direction angles MinAngle _ LED 1-MinAngle _ LED12 irradiated by the LED lamps corresponding to the numbers 1-12 are used as axes, the corresponding LED lamp numbers are used as table output values, and the LED lamp numbers corresponding to the minimum direction angles of the opposite Vehicle and the Vehicle are large values, so the maximum value of the critical LED lamp is obtained by table lookup as LED _ Num _ Max. The serial numbers of the LED lamps are LED _ Num _ Min and LED _ Num _ Max, and the LED lamps between the LED lamps are turned off, so that light irradiated by the LED lamps cannot fall in an anti-dazzling area, the situation that the driver of the opposite vehicle is dazzled is avoided, and the driving safety is improved. Taking fig. 5 as an example, by obtaining the left boundary direction angle and the right direction angle of each LED lamp projected on the road surface, the LED lamps within the No. 4 LED lamp and the No. 12 LED lamp are turned off, and the No. 1-4 LED lamps and the No. 12 LED lamps are reserved.
In summary, according to the control method of the vehicle passing lights, whether dazzling is caused to the driver of the opposite vehicle is judged firstly, then the LED lights corresponding to the dazzling water accumulation area are determined, and by turning off the corresponding LED lights, the driver dazzling caused by the fact that the lights irradiate the water accumulation area is avoided, and the driving safety of the vehicle is improved.
In summary, according to the control device of the low beam light of the vehicle of the embodiment of the invention, the acquisition module acquires the first position information of the water accumulation area in front of the current vehicle and the second position information of the opposite vehicle, the determination module determines the anti-glare area according to the first position information, and the determination module determines whether the opposite vehicle is located in the anti-glare area according to the second position information, and if the opposite vehicle is located in the anti-glare area, the control module performs anti-glare control on the low beam light of the current vehicle. Therefore, the device can prevent the accumulated water on the ground from dazzling the driver of the oncoming vehicle, and improve the driving safety of the vehicle.
Fig. 6 is a block schematic diagram of a control device of a vehicle low beam lamp according to an embodiment of the present invention.
As shown in fig. 6, the control device for a low beam lamp of a vehicle of an embodiment of the present invention may include: the device comprises an
The acquiring
According to one embodiment of the present invention, the first location information includes: the vehicle driving device comprises a first maximum direction angle of the water accumulation area relative to the current vehicle, a first minimum direction angle of the water accumulation area relative to the current vehicle, a maximum distance of the water accumulation area relative to the current vehicle and a minimum distance of the water accumulation area relative to the current vehicle.
According to an embodiment of the invention, the
According to an embodiment of the invention, the second location information comprises: the second maximum direction angle of the oncoming vehicle with respect to the current vehicle, the second minimum direction angle of the oncoming vehicle with respect to the current vehicle, and the relative distance of the oncoming vehicle with respect to the current vehicle.
According to an embodiment of the present invention, the determining
According to one embodiment of the present invention, the
According to one embodiment of the invention, the
According to an embodiment of the present invention, the obtaining
It should be noted that, for details that are not disclosed in the control device of the low beam light of the vehicle according to the embodiment of the present invention, please refer to details that are disclosed in the control method of the low beam light of the vehicle according to the embodiment of the present invention, and detailed description thereof is omitted here.
According to the control device of the vehicle low-beam lamp, the acquisition module acquires first position information of a water accumulation area in front of the current vehicle and second position information of the opposite vehicle, the determination module determines the anti-dazzle area according to the first position information, the judgment module judges whether the opposite vehicle is located in the anti-dazzle area according to the second position information, and if the opposite vehicle is located in the anti-dazzle area, the control module performs anti-dazzle control on the low-beam lamp of the current vehicle. Therefore, the device can prevent the accumulated water on the ground from dazzling the driver of the oncoming vehicle, and improve the driving safety of the vehicle.
FIG. 7 is a block schematic diagram of a vehicle according to an embodiment of the invention.
As shown in fig. 7, a vehicle 100 of an embodiment of the present invention may include: the
According to the vehicle provided by the embodiment of the invention, through the control device of the vehicle dipped headlight, the situation that ground water dazzles an oncoming vehicle driver can be avoided, and the driving safety of the vehicle is improved.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing steps of a custom logic function or process, and alternate implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present invention.
The logic and/or steps represented in the flowcharts or otherwise described herein, e.g., an ordered listing of executable instructions that can be considered to implement logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium could even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, via for instance optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. If implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware that is related to instructions of a program, and the program may be stored in a computer-readable storage medium, and when executed, the program includes one or a combination of the steps of the method embodiments.
In addition, functional units in the embodiments of the present invention may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a separate product, may also be stored in a computer readable storage medium.
The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc. Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
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