CN2725994Y - Tactile feedback data gloves - Google Patents
Tactile feedback data gloves Download PDFInfo
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- CN2725994Y CN2725994Y CN 200420050946 CN200420050946U CN2725994Y CN 2725994 Y CN2725994 Y CN 2725994Y CN 200420050946 CN200420050946 CN 200420050946 CN 200420050946 U CN200420050946 U CN 200420050946U CN 2725994 Y CN2725994 Y CN 2725994Y
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- tactile feedback
- bend sensor
- data glove
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Abstract
The utility model relates to a technical field of computers is a data glove with the function of tactile feedback. A bending sensor which is composed of a flexible circuit board, a force sensitive component and elastic encapsulating material is provided with the glove, and is connected to the signal processing circuit by a conducting wires. Two conducting wires are provided with the flexible circuit board which is covered with the force-sensitive material for the most part, and then the force-sensitive material is covered with a layer which is made of the elastic packaging material; one end of the flexible circuit board is retained outside and is connected with an external circuit. The utility model can transfer the posture of the human hands to the virtual environment and can feed the contact information back to the operators. The utility model can make the operator communicate with virtual world with a more direct, more natural, and more effective way, which enhances the interactivity and the feeling of being steeped in. The utility model provides a universal and direct way of human-computer interaction, in particular to fitting for a virtual reality system which requires hand models with multiple degrees of freedom to operate with the virtual objects in a complex way.
Description
Technical field
The utility model relates to field of computer technology, relates to Man Machine Interface, is the man-machine haptic interface in a kind of virtual reality system, the power feel telepresenc system in the teleoperation of robot field.
Technical background
In real world, hand is the human and extraneous mutual important means of carrying out.People grasp object with hand, express thoughts the perception material world.Yet, early stage in virtual reality development, in the face of the dummy object that computing machine generated, owing to lack necessary Man Machine Interface, people have to handle them by peripheral hardwares such as keyboard, mouse, operating rods.So not only greatly reduce operator's feeling of immersion, and confined operator's both hands.If can input to computing machine to operator's gesture, and from computing machine, obtain tactile feedback information, the operator just can resemble in daily life naturally, operating computer generated neatly dummy object.
The researcher is to having done a large amount of research based on the Man Machine Interface of staff.At the research initial stage, in order to allow the action and the attitude of computing machine " perception " staff, researcher's main research object is based on mechanical system and based on the gesture input system of gloves mode.That in the mechanical type system meaning represented is arranged relatively is Dextrious HandMaster, in the glove-type input media relatively success digital data entry glove, Nintendo/Mattel PowerGlove, VPLDataglove arranged, 5th Glove, and CyberGlove
TMDeng.Development along with technology, some researchers adopt computer vision to discern people's gesture, the constraint that this method can make the operator abandon interactive device, the thorough liberation both hands, but computer vision intrinsic occlusion issue can't be solved well.In addition, utilize computer vision that the identification of complicated gesture also is difficult to solve the real-time problem.Therefore, people have invested research and application based on the input system of gloves mode and mechanical system to sight again.
Have power and feel that feedback function is another important aspect of this class Man Machine Interface.But difficulty is bigger in realization owing to this type systematic, so can enter seldom the part had only of practical stage, for example FEELIt
TMMouse, PHANToM
TMArm, CyberTouch
TMAnd CyberGrasp
TMDeng.In virtual reality system,, operator's feeling of immersion will be strengthened greatly if can allow operator's hand when handling dummy object, experience its reacting force by power feel feedback assembly.Power feels that feedback assembly can be divided into shape representation formula and surface stimulation formula two big classes according to its feedback system.The shape representation formula mainly contains pneumatic type (as air bag, compression ring), electromechanical, marmem, piezoelectric-array formula etc.Wherein widely used have RMI, RMII, a PHANToM
TMThe six degree of freedom manipulater, Cybergrasp
TMDeng.
Tracking to the spatial pose of arm in the virtual reality system is crucial.Commonly used electromagnetic tracking system, optical tracking system are arranged, based on the posture tracing system of obliquity sensor etc.In these systems, adopt electromagnetism to follow the tracks of and can accurately follow the tracks of pose, but be subject to the interference of surrounding magnetic field and ferromagnetic material, its fancy price also limits its widespread use.Though optical tracking system also can obtain very high pose accuracy, its system architecture complexity, measurement range also is subjected to restriction to a certain degree.And advantages such as obliquity sensor miscellaneous is little, in light weight with its volume, interface simple, low price have been widely used in the attitude measurement system.
The utility model content
The purpose of this utility model is that it has haptic feedback functions, dependable performance, precision height, the wide model of usable range for attitude measurement system provides a kind of light and handy, simple data glove.
Another purpose of the present utility model provides a kind of data glove, and it not only can feed back to the operator to the contact information with dummy object, and can accurately pass to virtual environment to the attitude of staff in real time.
For achieving the above object, technical solution of the present utility model provides a kind of data glove with haptic feedback functions, is the man-machine haptic interface that is used for virtual reality system, and it is based on the quick principle of power, and gloves are provided with bend sensor.
Described tactile feedback data glove, its described bend sensor is made up of flexible PCB, force sensing element, elastic packaging material, and is connected to signal processing circuit by lead; Be provided with at least two leads on flexible PCB, be coated on the major part of flexible PCB with force-sensitive material, coat one deck elastic packaging material again on force-sensitive material, flexible PCB stays an end outside, is connected with external circuit with lead.
Described tactile feedback data glove, its described bend sensor are installed in the position of gloves inside corresponding to hand, articulations digitorum manus bending, are used to detect the angle of bend in the main joint of hand.
Described tactile feedback data glove, its described bend sensor is quantification as required.
Described tactile feedback data glove, the mutual disjunct plain conductor of its described lead, and parallel to each other or interlaced.
Described tactile feedback data glove comprises:
Several are installed on the bend sensor of gloves inside;
Several tactile feedback vibration units;
A signals collecting and a control module based on DSP comprise five parts: bend sensor signaling conversion circuit, obliquity sensor, COM port, tactile feedback driving circuit, digital signal processor, and this five part is electrically connected; Wherein, bend sensor is electrically connected on bend sensor signaling conversion circuit to A/D input port, the tactile feedback vibration unit of digital signal processor and is electrically connected on the CAP input port that tactile feedback driving circuit, obliquity sensor are electrically connected on digital signal processor, and signals collecting links to each other with computing machine by the computer serial communication interface with the COM port of control module; Signals collecting and control module are located at the wrist top of gloves outside.
Described tactile feedback data glove, its described vibration unit comprise a cylinder blanket and an arc-shaped base, and base and shell circle side are affixed, and contact with the finger belly of finger tips; A miniature vibrating motor is arranged in the cylinder blanket, and motor is electrically connected on the tactile feedback driving circuit.Vibration unit is exported the tactile feedback signal of various patterns under the driving of control module.
Described tactile feedback data glove, its described obliquity sensor adopts the twin-axis accelerometer ADXL202 based on the MEMS technology, is used to detect the inclination angle of arm.
Described tactile feedback data glove, its described output signal of gathering bend sensor and obliquity sensor in real time based on signals collecting and the control module of DSP carries out passing to virtual reality system by serial port after the Filtering Processing; When virtual hand and dummy object came in contact, tactile data passed to control module by serial port, makes it export corresponding tactile feedback.
The utility model has adopted a kind of novel bend sensor to finish the input that the measurement in hand joint is realized gesture.
The utility model adopts specific mode of vibration to provide tactile feedback for the operator.
The utility model uses the attitude that detects arm based on the obliquity sensor of MEMS technology.Though use this sensor can not obtain positional information, the operator can realize the motion of virtual hand in virtual environment by attitude and cooperating of gesture.
Description of drawings
Fig. 1 is a bend sensor structure of the present utility model;
Fig. 2 is a bend sensor metering circuit of the present utility model;
Fig. 3 is sensor placement figure of the present utility model;
Fig. 4 is oscillatory type tactile feedback of the present utility model unit;
Fig. 5 is data acquisition of the present utility model and control module.
Embodiment
The bend sensor technology is the core technology of data glove, requires it should have lightly, and is flexible good, characteristics such as reliability height.The bend sensor of the quick principle of the power that is based on that the utility model adopts.Shown in Figure 1 is the structural drawing of this sensor, and this novel bend sensor mainly is made up of following three parts: force-sensitive material 1, flexible PCB 2, elastic packaging material 3.On the flexible PCB 2 of sheet bar shaped, be provided with two copper conductors parallel to each other 4, be coated on the major part of flexible PCB 2 with force-sensitive material 1, coat one deck elastic packaging material 3 again on force-sensitive material 1, flexible PCB 2 is remained in office an end outside, so that lead 4 is connected with external circuit.
Force-sensitive material 1 is the sensitive element of this sensor, and it covers on the flexible PCB 2 with two row copper conductor 4 parallel to each other.The outermost layer of bend sensor has wrapped up one deck resilient material 3, when bend sensor is bent, elastic deformation takes place in outer elastic packaging material 3, thereby produces the stress that is applied on the force-sensitive material 1 at sensor internal, and therefore the resistance of force-sensitive material 1 changes.The variation of this resistance can be transformed into electric signal output by the external signal change-over circuit that links to each other with parallel wire 4.This sensor has following characteristic:
1) pliable and tough
The all material that this bend sensor adopted all has good flexibility, so it is easy to bending, can not influence the activity in hand joint.
2) light and handy
This sensor thickness is 1.2mm, can be made into different sizes as required, since light and handy, so its sensor as data glove can not felt any discomfort to wearer.
3) reliable
The bend sensor that the utility model adopts can stand tens thousand of times bending and remain intact.
In actual applications, this bend sensor can be simplified as a conversion.Shown in Figure 2 is circuit theory diagrams.When being connected bend sensor on the constant pressure source, the variation of the bending of sensor makes its resistance change, thereby changes the voltage output value of follower, and big more its voltage output value of angle of bend is also big more.If allow bend sensor keep certain angle constant, voltage output will keep constant.The input/output relation of bend sensor has the better linearity degree, according to the initial value of bend sensor output and ultimate value with and pairing angle of bend just can draw the bend sensor input/output relation by linear interpolation, and this relational application is arrived among the measurement of joint angles.Before the measurement, can obtain higher measuring accuracy through suitable calibrating procedure.
Fig. 3 is the layout of bend sensor.The utility model is at 16 bend sensors of the inner installation of gloves, and 10 bend sensors wherein are used to detect IP, MP joint and other four PIP and MCP joint that refers to of thumb; 4 bend sensors are used to detect the angle between adjacent finger; Other 2 bend sensors are respectively applied for and detect palm and carpal angle of bend.These bend sensors can come out the measurement of angle in the main joint of staff.Output by data acquisition among Fig. 5 and control module are gathered these sensors in real time passes to virtual reality system through filtering, calculating back by serial communication interface again, makes virtual hand follow the variation of operator's gesture real-time and accurately.
Shown in Figure 4 is oscillatory type tactile feedback unit.This vibration unit comprises a cylinder blanket and a base.Built-in miniature vibrating motor in the right cylinder.The diameter of vibrating motor is 6mm, and maximum speed reaches 7200 rev/mins.The vibration unit volume that the utility model adopts is less, can be installed in to refer to the belly position, and this layout is consistent with the position that staff contact object produces sense of touch.In addition, vibration unit has an arc-shaped base, and it has increased the contact area of vibration unit and people's skin of hand, and what make staff feels more vivid.By control, can make oscillatory type tactile feedback unit simulation go out three kinds of sensations: attack, touch and mechanical vibration to current of electric.Employing can strengthen the feeling of immersion of operator in the virtual reality system greatly based on the tactile feedback mode of vibration.
The utility model has adopted twin-axis accelerometer ADXL202 based on the MEMS technology as obliquity sensor.This sensor has that volume is little, and measurement range is big, characteristics such as precision height.Microprocessor in the utility model is tried to achieve the angle of pitch and the roll angle of arm according to the digital output of two measurement axis of ADXL202, and passes to virtual reality system.
Shown in Figure 5 is data acquisition of the present utility model and control module.It mainly comprises five parts: bend sensor signaling conversion circuit, obliquity sensor, COM port, tactile feedback driving circuit, TMS320LF2407 DSP (digital signal processor), and this five part is electrically connected; Wherein, bend sensor is electrically connected on bend sensor signaling conversion circuit to A/D input port, the tactile feedback vibration unit of digital signal processor and is electrically connected on the CAP input port that tactile feedback driving circuit, obliquity sensor are electrically connected on digital signal processor, and signals collecting links to each other with computing machine by the computer serial communication interface with the COM port of control module; Signals collecting and control module are located at the wrist top of gloves outside.
DSP is the core processing unit of total system, it passes through A/D converting unit and CAP port processing to the output of the output of 16 curved way sensor signal change-over circuits and two measurement axis of ADXL202 respectively to processor inside, through by serial communication interface the current sampled value of sensor being passed to the computing machine or the workstation of operation virtual reality system behind the digital filtering.When virtual hand and dummy object were had an effect, computing machine or workstation passed to DSP to feedback information by serial communication interface, and the vibrating motor that is driven the tactile feedback unit by DSP gives the operator with tactile feedback.
Data glove with haptic feedback functions of the present utility model both can be from the computing machine power taking, also can external power supply.More convenient concerning the user from the direct power taking of computing machine.
Claims (7)
1. the data glove with haptic feedback functions is the man-machine haptic interface that is used for virtual reality system, and it is characterized in that: gloves are provided with bend sensor; Bend sensor is made up of flexible PCB, force sensing element, elastic packaging material, and is connected to signal processing circuit by lead; Be provided with at least two leads on flexible PCB, be coated on the major part of flexible PCB with force-sensitive material, coat one deck elastic packaging material again on force-sensitive material, flexible PCB stays an end outside, is connected with external circuit with lead.
2. tactile feedback data glove according to claim 1, it is characterized in that: described bend sensor is installed in the position of gloves inside corresponding to hand, articulations digitorum manus bending.
3. tactile feedback data glove as claimed in claim 1 or 2, it is characterized in that: described bend sensor is quantification as required.
4. tactile feedback data glove according to claim 1, it is characterized in that: described lead is mutual disjunct plain conductor, and parallel to each other or interlaced.
5. tactile feedback data glove according to claim 1 is characterized in that: comprising:
Several are installed on the bend sensor of gloves inside;
Several tactile feedback vibration units;
A signals collecting and a control module based on DSP comprise five parts: bend sensor signaling conversion circuit, obliquity sensor, COM port, tactile feedback driving circuit, digital signal processor, and this five part is electrically connected;
Wherein, bend sensor is electrically connected on bend sensor signaling conversion circuit to A/D input port, the tactile feedback vibration unit of digital signal processor and is electrically connected on the CAP input port that tactile feedback driving circuit, obliquity sensor are electrically connected on digital signal processor, and signals collecting links to each other with computing machine by the computer serial communication interface with the COM port of control module; Signals collecting and control module are located at the wrist top of gloves outside.
6, as tactile feedback data glove as described in the claim 5, it is characterized in that described vibration unit comprises a cylinder blanket and an arc-shaped base, base and shell circle side are affixed, and contact with the finger belly of finger tips; A miniature vibrating motor is arranged in the cylinder blanket, and motor is electrically connected on the tactile feedback driving circuit.
As tactile feedback data glove as described in the claim 5, it is characterized in that 7, described obliquity sensor adopts the twin-axis accelerometer ADXL202 based on the MEMS technology.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420050946 CN2725994Y (en) | 2004-05-13 | 2004-05-13 | Tactile feedback data gloves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420050946 CN2725994Y (en) | 2004-05-13 | 2004-05-13 | Tactile feedback data gloves |
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| Publication Number | Publication Date |
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| CN2725994Y true CN2725994Y (en) | 2005-09-14 |
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| CN 200420050946 Expired - Lifetime CN2725994Y (en) | 2004-05-13 | 2004-05-13 | Tactile feedback data gloves |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102426477A (en) * | 2011-08-09 | 2012-04-25 | 广东科学中心 | Gesture detecting method and detecting device |
| CN102858413A (en) * | 2010-04-13 | 2013-01-02 | 三星电子株式会社 | Device and method for processing a virtual world |
| CN103097990A (en) * | 2010-07-06 | 2013-05-08 | 原子能和替代能源委员会 | System for simulating a contact with a surface by tactile stimulation |
| CN103558913A (en) * | 2013-10-31 | 2014-02-05 | 中山大学 | Virtual input glove keyboard with vibration feedback function |
| CN104970497A (en) * | 2014-04-01 | 2015-10-14 | 宏达国际电子股份有限公司 | Wearable device |
| CN112370311A (en) * | 2019-12-11 | 2021-02-19 | 上海司羿智能科技有限公司 | Data glove, manufacturing method and finger joint rehabilitation training device |
| CN115033100A (en) * | 2022-06-08 | 2022-09-09 | 苏州大学 | Multidirectional fingertip plane tactile feedback device |
-
2004
- 2004-05-13 CN CN 200420050946 patent/CN2725994Y/en not_active Expired - Lifetime
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102858413A (en) * | 2010-04-13 | 2013-01-02 | 三星电子株式会社 | Device and method for processing a virtual world |
| CN102858413B (en) * | 2010-04-13 | 2014-10-29 | 三星电子株式会社 | Device and method for processing a virtual world |
| CN104281262A (en) * | 2010-04-13 | 2015-01-14 | 三星电子株式会社 | A method of interacting between a real world and a virtual world |
| CN104281262B (en) * | 2010-04-13 | 2017-08-01 | 三星电子株式会社 | Method for the mutual action between virtual world and real world |
| CN103097990A (en) * | 2010-07-06 | 2013-05-08 | 原子能和替代能源委员会 | System for simulating a contact with a surface by tactile stimulation |
| US9298259B2 (en) | 2010-07-06 | 2016-03-29 | Commissariat A L'energie Atomique Et Aux Energies Alternatives | System for simulating a contact with a surface by tactile simulation |
| CN102426477A (en) * | 2011-08-09 | 2012-04-25 | 广东科学中心 | Gesture detecting method and detecting device |
| CN103558913A (en) * | 2013-10-31 | 2014-02-05 | 中山大学 | Virtual input glove keyboard with vibration feedback function |
| CN104970497B (en) * | 2014-04-01 | 2017-07-04 | 宏达国际电子股份有限公司 | Wearable device |
| CN104970497A (en) * | 2014-04-01 | 2015-10-14 | 宏达国际电子股份有限公司 | Wearable device |
| CN112370311A (en) * | 2019-12-11 | 2021-02-19 | 上海司羿智能科技有限公司 | Data glove, manufacturing method and finger joint rehabilitation training device |
| WO2021115376A1 (en) * | 2019-12-11 | 2021-06-17 | 上海司羿智能科技有限公司 | Finger joint rehabilitation training device |
| EP4059485A4 (en) * | 2019-12-11 | 2023-01-04 | Shanghai Siyi Intelligent Technology Co., Ltd. | Finger joint rehabilitation training device |
| JP2023505722A (en) * | 2019-12-11 | 2023-02-10 | 上海司▲い▼智能科技有限公司 | finger joint rehabilitation training device |
| JP7381759B2 (en) | 2019-12-11 | 2023-11-15 | 上海司▲い▼智能科技有限公司 | Finger joint rehabilitation training device |
| CN112370311B (en) * | 2019-12-11 | 2024-05-28 | 上海司羿智能科技有限公司 | Data glove, manufacturing method and finger joint rehabilitation training device |
| CN115033100A (en) * | 2022-06-08 | 2022-09-09 | 苏州大学 | Multidirectional fingertip plane tactile feedback device |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
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| CX01 | Expiry of patent term |
Expiration termination date: 20140513 Granted publication date: 20050914 |