CN103869766A - Non-contact control system for vehicle and control method - Google Patents
Non-contact control system for vehicle and control method Download PDFInfo
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- CN103869766A CN103869766A CN201210562178.6A CN201210562178A CN103869766A CN 103869766 A CN103869766 A CN 103869766A CN 201210562178 A CN201210562178 A CN 201210562178A CN 103869766 A CN103869766 A CN 103869766A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The invention discloses a non-contact control system for a vehicle and a control method. The non-contact control system comprises a signal collection unit, a signal processing unit and a target unit, wherein the signal collecting unit comprises at least one bioelectric sensor and is used for collecting bioelectric signals, the signal processing unit comprises a hardware signal processing circuit and a micro controller, the hardware signal processing circuit is connected with the signal collecting unit, the collected bioelectric signals are input into the micro controller through AD (analog-to-digital) sampling after being subjected to demodulation filtering processing, the micro controller is connected with the hardware signal processing circuit and is used for identifying the moving track of the human limbs and bodies and converting the identified moving tracks into corresponding operation instructions, and the target unit is connected with the signal processing unit, and the corresponding operation is executed according to the operation instructions of the signal processing unit. Through the control system, the contact with any object is not needed, and the control on an automobile can be realized only through executing specific or pre-stored actions in specified regions by the limbs and bodies of people.
Description
Technical field
The invention belongs to automotive control system, be specifically related to a kind of automobile-used Touchless control system and control method.
Background technology
Along with the development of automotive engineering, comfortableness and the practicality of client to automobile requires more and more higher.Present stage, the market control assembly in control system of getting on the car used mechanical type or button more, in sense of touch, give stiff, dull, the dull sensation of people, and mechanical type or key switch easily damage after working long hours, and appearance easily produces old phenomenon, affects attractive in appearance.
Summary of the invention
The object of this invention is to provide a kind of automobile-used Touchless control system and control method, by this control system without with any object contact, only in specific region, carry out the action of pre-stored by people's limbs, can realize the control to automobile.
Automobile-used Touchless control system of the present invention, comprising:
Signal gathering unit, comprises at least one biopotential sensor, for gathering bioelectrical signals;
Signal processing unit, comprise hardware signal processing circuit and microcontroller, described hardware signal processing circuit is connected with described signal gathering unit, the bioelectrical signals of collection is carried out after demodulation filtering processing, sample and input microcontroller by AD, described microcontroller is connected with hardware signal processing circuit, for identifying the movement locus of people's limbs, and identified movement locus is converted to corresponding operational order;
Object element, connects described signal processing unit, carries out corresponding operation according to the operational order of described signal processing unit.
Carry out demodulation filtering processing by hardware signal processing circuit, can effectively reduce the interference of signal, reduce the burden of microcontroller, signal is after filtering sampled and is input to microcontroller by AD, microcontroller operating software (comprising filtering algorithm, logic evaluation algorithm and control algolithm) does further filtering and logical process to the signal of sampling, then result is transported to object element, carries out corresponding operation by object element.
Described object element comprises actuator and display screen, is connected respectively with microcontroller, and described actuator is carried out corresponding operation according to the operational order of described microcontroller, and described display screen shows executing state.
Described signal gathering unit comprise be arranged symmetrically between two console both sides first, second, third, fourth, the 5th, the 6th biopotential sensor, and first, second, third, fourth biopotential sensor is arranged in same level, the 5th, the 6th biopotential sensor is arranged in the top/below of first, second, third, fourth biopotential sensor place surface level.
Also comprise the shift knob of closing or open this control system, this shift knob is arranged on bearing circle.
Also comprise a power module, for this control system provides stable electric energy, described power module comprises holding circuit, mu balanced circuit and reduction voltage circuit.
Described hardware signal processing circuit comprises demodulator circuit, filtering circuit and AD sample circuit.
When people's limbs are during near biopotential sensor, the biological power that biopotential sensor detects is larger, and when in like manner people's limbs are away from biopotential sensor, what biopotential sensor detected dies down relatively to biological power.This system forms array by multiple biopotential sensors, jointly detects the bioelectrical signals of people's limbs.When the residing position of people's limbs difference, the size of the detected biological power of each biopotential sensor is also different, and the electric energy size that multiple biopotential sensors are detected is comprehensively analyzed, and can draw limbs residing position in this plane of people; In the time that people's limbs move, the detected value of each biopotential sensor also can change thereupon, can again calculate people with above-mentioned principle is limbs residing positions in this plane, in the time increasing sample rate, the movement locus of the limbs that can obtain people in this plane, by the motion track information contrast of the movement locus of people's limbs and pre-stored, after coupling, display screen is responsible for systematic analysis result to show, and carries out this corresponding content of operation of limb motion institute by actuator.
The control method of automobile-used Touchless control system of the present invention, its step is as follows:
A, signal gathering unit are by the bioelectrical signals of biopotential sensor continuous acquisition people limbs;
The bioelectrical signals that B, signal processing unit detect signal gathering unit by hardware signal processing circuit carries out after demodulation, filtering processing, sample and input microcontroller by AD, microcontroller carries out movement locus identification to the data of AD sampling, judge the movement locus of people's limbs, determine the operational order corresponding with this movement locus, and operational order is inputed to object element;
C, object element are carried out corresponding operation according to the operational order of signal processing unit output.
Described object element comprises actuator and display screen, and described actuator is carried out corresponding operation according to the operational order of described microcontroller, and described display screen shows executing state.
Described control system can be familiar with according to user, self-defined its function of action of liking, in the time that system enters learning functionality pattern, user only need perform an action in appointed area, system is carried out first record to this action, system prompt is carried out this action again, in the time that twice action of user input is identical, this action record success of system prompt, display screen is pointed out selectable mapping function, user selects a kind of function and mates with this action, after the match is successful, control system is stored in this information in microcontroller, even to system cut-off, this information also can not be lost, user's later stage can modify to this information.
Described system controls the multiple biopotential sensors that all mistakes are positioned at same level and forms arrays, jointly detects the bioelectrical signals of people's limbs; When the residing position of people's limbs difference, the size of the detected biological power of each biopotential sensor is also different, and the biological power value that multiple biopotential sensors are detected is comprehensively analyzed, and can draw people's limbs residing position in this plane; In the time increasing sample rate, the movement locus of the limbs that can obtain people in this plane, by the motion track information contrast of the movement locus of people's limbs and pre-stored, after coupling, inquire about the corresponding operational order of this movement locus, display screen shows systematic analysis result, and carries out this corresponding content of operation of limb motion institute by actuator.
The present invention has the following advantages: this control system is without any object of contact, and directly end user's limbs are carried out the action of pre-stored in this system in specific region, can realize the control to automobile, operates very simply, and reliability is higher; And self-defined its function of action that user can be familiar with according to oneself, like, can meet the request for utilization of different user.
Accompanying drawing explanation
Fig. 1 is composition frame chart of the present invention;
Fig. 2 is structured flowchart of the present invention;
Fig. 3 is sensor and the mounting structure schematic diagram of shift knob in car in the present invention;
Fig. 4 is one of biopotential sensor schematic diagram that biological power power detected;
Fig. 5 is two of biopotential sensor schematic diagram that biological power power detected.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described:
Automobile-used Touchless control system as depicted in figs. 1 and 2, comprises signal gathering unit, signal processing unit, object element, power module 12 and shift knob 7;
Signal gathering unit, comprises at least one biopotential sensor, for gathering bioelectrical signals;
Signal processing unit, comprise hardware signal processing circuit 8 and microcontroller 9, described hardware signal processing circuit 8 is connected with described signal gathering unit, the bioelectrical signals of collection is carried out after demodulation filtering processing, sample and input microcontroller 9 by AD, described microcontroller 9 is connected with hardware signal processing circuit 8, for identifying the movement locus of people's limbs, and identified movement locus is converted to corresponding operational order;
Object element, described object element comprises actuator 10 and display screen 11, is connected respectively with microcontroller 9, and described actuator 10 is carried out corresponding operation according to the operational order of described microcontroller 9, and described display screen 11 shows executing state.
Shift knob 7, is arranged on shift knob 7 on bearing circle 13, selects whether to open the recognition function of this control system, to avoid causing maloperation in driving.
When people's limbs are during near biopotential sensor, the biological power that biopotential sensor detects is larger, and when in like manner people's limbs are away from biopotential sensor, what biopotential sensor detected dies down relatively to biological power.This system forms array by multiple biopotential sensors, jointly detects the bioelectrical signals of people's limbs.When the residing position of people's limbs difference, the size of the detected biological power of each biopotential sensor is also different, and the biological power value that multiple biopotential sensors are detected is comprehensively analyzed, and can draw limbs residing position in this plane of people; In the time that people's limbs move, the detected value of each biopotential sensor also can change thereupon, can again calculate people's limbs residing position in this plane with above-mentioned principle, in the time increasing sample rate, the movement locus of the limbs that can obtain people in this plane, by the motion track information contrast of the movement locus of people's limbs and pre-stored, after coupling, display screen 11 is responsible for systematic analysis result to show, and carries out this corresponding content of operation of limb motion institute by actuator 10.
The control method of automobile-used Touchless control system of the present invention, its step is as follows:
A, signal gathering unit are by the bioelectrical signals of biopotential sensor continuous acquisition people limbs;
The bioelectrical signals that B, signal processing unit detect signal gathering unit by hardware signal processing circuit 8 carries out after demodulation, filtering processing, sample and input microcontroller 9 by AD, microcontroller 9 carries out movement locus identification to the data of AD sampling, judge the movement locus of people's limbs, determine the operational order corresponding with this movement locus, and operational order is inputed to object element;
C, object element are carried out corresponding operation according to the operational order of signal processing unit output.
Described object element comprises actuator 10 and display screen 11, and described actuator 10 is carried out corresponding operation according to the operational order of described microcontroller 9, and described display screen 11 shows executing state.
Described control system can be familiar with according to user, self-defined its function of action of liking, in the time that system enters learning functionality pattern, user only need perform an action in appointed area, system is carried out first record to this action, system prompt is carried out this action again, in the time that twice action of user input is identical, this action record success of system prompt, display screen 11 is pointed out selectable mapping function, user selects a kind of function and mates with this action, after the match is successful, control system is stored in this information in microcontroller 9, even to system cut-off, this information also can not be lost, user's later stage can modify to this information.
Described system controls the multiple biopotential sensors that all mistakes are positioned at same level and forms arrays, jointly detects the bioelectrical signals of people's limbs; When the residing position of people's limbs difference, the size of the detected biological power of each biopotential sensor is also different, and the biological power value that multiple biopotential sensors are detected is comprehensively analyzed, and can draw people's limbs residing position in this plane; In the time increasing sample rate, the movement locus of the limbs that can obtain people in this plane, by the motion track information contrast of the movement locus of people's limbs and pre-stored, after coupling, inquire about the corresponding operational order of this movement locus, display screen 11 shows systematic analysis result, and carries out this corresponding content of operation of limb motion institute by actuator 10.
Below take signal gathering unit as six biopotential sensors, first, second, third, fourth, the 5th, the 6th biopotential sensor 1,2,3,4,5,6 is arranged symmetrically in console 14 both sides between two, and first, second, third, fourth biopotential sensor 1,2,3,4 is arranged in same level, five, the top (or below) that the 6th biopotential sensor 5,6 is arranged in first, second, third, fourth biopotential sensor 1,2,3,4 place surface levels is example, and control system of the present invention is described:
As shown in Figure 3, the 5th biopotential sensor 5, the 3rd biopotential sensor 3, the first biopotential sensor 1 are arranged in the left side of console 14 from front to back successively, and the 6th biopotential sensor 6, the second biopotential sensor 2, the 4th biopotential sensor 4 are arranged in the right side of console 14 from front to back successively.The first biopotential sensor 1, the second biopotential sensor 2, the 3rd biopotential sensor 3 and the 4th biopotential sensor 4 form a biological electric sensor web, for the limbs that judge people coordinate position and movement locus in the horizontal direction.The first biopotential sensor 1, the second biopotential sensor 2, the 5th biopotential sensor 5 and the 6th biopotential sensor 6 another biopotential sensor nets of composition, for the limbs that judge people coordinate position and movement locus in the vertical direction.Can effectively judge the motion conditions of people's limbs in one dimension, two and three dimensions space by these two biopotential sensor nets.
Moving left and right of staff is customized for to the page-turning function of vehicle entertainment system menu bar, moving up and down of staff is customized for and confirms to select to play music.
As shown in Figure 4, when staff is during in A point, the biological power that the first biopotential sensor 1 detects is 4.3, the biological power that the second biopotential sensor 2 detects is 3.5, the biological power that the 3rd biopotential sensor 3 detects is 4, the biological power that the 4th biopotential sensor 4 detects is 2, and the biological power that this control system detects first, second, third, fourth biopotential sensor 1,2,3,4 is processed, and can show that staff is at A point, as shown in Figure 5, in the time that human hand movement arrives B point, the biological power that the first biopotential sensor 1 detects is 2.0, the biological power that the second biopotential sensor 2 detects is 3.6, the biological power that the 3rd biopotential sensor 3 detects is 2.3, the biological power that the 4th biopotential sensor 4 detects is 4.5, this control system is to first, second, the 3rd, the 4th biopotential sensor 1, 2, 3, 4 biological powers that detect are processed, can show that staff is at B point, when increasing sample rate, can judge the movement locus that staff is ordered to B from A point, that is: move left and right, now, vehicle entertainment system is carried out menu page-turning function.When staff is moved horizontally to after assigned address, move up and down again, in like manner, this control system to first, second, the biological power that detects of the 5th, the 6th biopotential sensor 1,2,5,6 processes, identify the movement locus of staff for moving up and down, now, vehicle entertainment system is carried out broadcasting musical instruction, and music starts to play.
Claims (10)
1. an automobile-used Touchless control system, is characterized in that: comprise
Signal gathering unit, comprises at least one biopotential sensor, for gathering bioelectrical signals;
Signal processing unit, comprise hardware signal processing circuit (8) and microcontroller (9), described hardware signal processing circuit (8) is connected with described signal gathering unit, the bioelectrical signals of collection is carried out after demodulation filtering processing, sample and input microcontroller (9) by AD, described microcontroller (9) is connected with hardware signal processing circuit (8), for identifying the movement locus of people's limbs, and identified movement locus is converted to corresponding operational order;
Object element, connects described signal processing unit, carries out corresponding operation according to the operational order of described signal processing unit.
2. automobile-used Touchless control system according to claim 1, it is characterized in that: described object element comprises actuator (10) and display screen (11), be connected with microcontroller (9) respectively, described actuator (10) is carried out corresponding operation according to the operational order of described microcontroller (9), and described display screen (11) shows executing state.
3. automobile-used Touchless control system according to claim 1 and 2, it is characterized in that: described signal gathering unit comprises and is arranged symmetrically between two first of console (14) both sides, second, the 3rd, the 4th, the 5th, the 6th biopotential sensor (1, 2, 3, 4, 5, 6), and first, second, the 3rd, the 4th biopotential sensor (1, 2, 3, 4) be arranged in same level, the 5th, the 6th biopotential sensor (5, 6) be arranged in first, second, the 3rd, the 4th biopotential sensor (1, 2, 3, 4) top/below of place surface level.
4. automobile-used Touchless control system according to claim 3, is characterized in that: also comprise the shift knob (7) of closing or open this control system, this shift knob (7) is arranged on bearing circle (13).
5. automobile-used Touchless control system according to claim 3, is characterized in that: also comprise a power module (7), for this control system provides stable electric energy, described power module (7) comprises holding circuit, mu balanced circuit and reduction voltage circuit.
6. automobile-used Touchless control system according to claim 3, is characterized in that: described hardware signal processing circuit (8) comprises demodulator circuit, filtering circuit and AD sample circuit.
7. as a control method for the automobile-used Touchless control system as described in arbitrary according to claim 1 to 6, its step is as follows:
A, signal gathering unit are by the bioelectrical signals of biopotential sensor continuous acquisition people limbs;
The bioelectrical signals that B, signal processing unit detect signal gathering unit by hardware signal processing circuit (8) carries out after demodulation, filtering processing, sample and input microcontroller (9) by AD, microcontroller (9) carries out movement locus identification to the data of AD sampling, judge the movement locus of people's limbs, determine the operational order corresponding with this movement locus, and operational order is inputed to object element;
C, object element are carried out corresponding operation according to the operational order of signal processing unit output.
8. the control method of automobile-used Touchless control system according to claim 7, it is characterized in that: described object element comprises actuator (10) and display screen (11), described actuator (10) is carried out corresponding operation according to the operational order of described microcontroller (9), and described display screen (11) shows executing state.
9. the control method of automobile-used Touchless control system according to claim 8, it is characterized in that: described control system can be familiar with according to user, self-defined its function of action of liking, in the time that system enters learning functionality pattern, user only need perform an action in appointed area, system is carried out first record to this action, system prompt is carried out this action again, in the time that twice action of user input is identical, this action record success of system prompt, display screen (11) is pointed out selectable mapping function, user selects a kind of function and mates with this action, after the match is successful, control system is stored in this information in microcontroller (9), even to system cut-off, this information also can not be lost, user's later stage can modify to this information.
10. the control method of automobile-used Touchless control system according to claim 9, is characterized in that: described system controls the multiple biopotential sensors that all mistakes are positioned at same level and forms arrays, jointly detects the bioelectrical signals of people's limbs; When the residing position of people's limbs difference, the size of the detected biological power of each biopotential sensor is also different, and the biological power value that multiple biopotential sensors are detected is comprehensively analyzed, and can draw people's limbs residing position in this plane; In the time increasing sample rate, the movement locus of the limbs that can obtain people in this plane, by the motion track information contrast of the movement locus of people's limbs and pre-stored, after coupling, inquire about the corresponding operational order of this movement locus, display screen (11) shows systematic analysis result, and carries out this corresponding content of operation of limb motion institute by actuator (10).
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Cited By (2)
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| CN105353667A (en) * | 2014-08-19 | 2016-02-24 | 深圳市赛格导航科技股份有限公司 | System and method for controlling vehicle by body movement |
| CN110428101A (en) * | 2019-07-31 | 2019-11-08 | 重庆长安汽车股份有限公司 | Destination prediction technique and computer readable storage medium based on history trip rule |
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