CN102357899A - Finger gesture collector - Google Patents

Abstract

The invention discloses a finger attitude collector, which consists of a hand back fixing plate, a palm elastic fixing belt, a hand back buffer pad, a sliding potentiometer, a finger elastic traction piece, a finger buffer pad, a primary finger cot and a secondary finger cot composition. It is characterized in that: the two ends of the palm elastic fixing belt are respectively fixed on the left and right sides of the back of the hand fixing plate, the back of the hand buffer gasket is fixed under the back fixing plate, and the sliding potentiometer is respectively fixed on the back of the hand fixing plate with screws. The sliding end of the sliding potentiometer is fixedly linked with one end of the finger elastic traction piece, and a finger buffer pad is pasted under the finger elastic traction piece, and the finger elastic traction piece is fixed to the finger through the first-level finger cot and the second-level finger cot. The invention has the beneficial effects of low cost, comfortable wearing, and adaptability to different finger spacing, finger thickness and finger length.

Description

A Finger Gesture Collector

technical field

The invention relates to a human-machine interface device for realizing the control of a remote-controlled robot, specifically a finger posture collector, which uses a sliding potentiometer to measure the bending degree of the finger, and is a device for measuring finger posture in a virtual reality system .

Background technique

With the widespread application of interactive remote control robots, a large number of human-machine interface devices capable of collecting gestures of human fingers will be required. Data gloves are common human-machine interface devices for teleoperated robots. The current data gloves have a fixed size and can only adapt to a specific palm size. For different sizes of palms, only data gloves of different sizes can be used, which has poor versatility, and most of them use bending sensors as measuring components, which are expensive.

Invention content:

In order to be able to adapt to the size of different fingers, the present invention provides a finger posture collector, which uses a sliding potentiometer to measure the finger posture, and can adapt to the length and thickness of fingers of different people.

A finger posture collector is characterized in that it includes a back of the hand fixing plate, an elastic fixing belt of the palm, a sliding potentiometer, an elastic finger traction piece and a first-level finger cot. The two ends of the palm elastic fixing belt are respectively fixed on the left and right sides of the back of the hand fixing plate, and five sliding potentiometers are fixed on the back of the hand fixing plate. The sliding ends of the five sliding potentiometers are fixedly connected to one end of the five finger elastic traction pieces, and each finger elastic traction piece is fixed to the finger through a first-level finger cot, and the first-level finger cot is covered at the root of the finger. A voltage is applied across each slide potentiometer using a power supply.

The left and right sides of the back of the hand fixing plate are fixed with palm elastic fixing belts, which can be made of elastic materials, and it is recommended to use elastic elastic belts. When the present invention is worn by human hands, the palm elastic fixing belt can make the palm and the back of the hand fixing plate closely fit. Because the palm elastic fixing belt has certain elasticity, it can adapt to different palm widths and thicknesses, which improves the scope of application of the present invention.

Further: There are 5 pairs of potentiometer mounting slots on the back of the hand fixing plate, and each pair of mounting slots fixes a sliding potentiometer.

The back of the hand fixing plate is provided with an installation groove, which can allow the fixing screw of the sliding potentiometer to slide in the groove, and then adjust the position of the sliding potentiometer on the back of the hand fixing plate, so that the present invention can adapt to the fingers of different people spacing.

Further: a second-level finger cot is also used to fix the finger elastic traction piece and the finger, and the second-level finger cot is set on the tip of the finger.

Use the first-level finger cot and the second-level finger cot to fix the finger elastic traction piece and the finger. The finger cot can be made of elastic material. It is recommended to use elastic elastic band, which can adapt to the thickness of different fingers. When people wear the present invention, the first-level finger cots are placed on the root of the finger, and the second-level finger cots are placed on the fingertips. At the same time, the operator can change the positions of the first and second-level finger cots according to the length of his fingers, which improves the performance of the user. scope of application of the invention.

For finger movement, the movement position of the root of the finger reflects the bending information of the whole finger to some extent. For collecting the bending degree of the finger, it is only necessary to make the finger bending signal correspond to the position signal of the sliding potentiometer, so the first-level finger cot is used to fix the finger elastic traction piece and the root of the finger to convert the finger bending signal into sliding Potentiometer position signal. The secondary finger cot is placed on the tip of the finger to make the finger elastic traction piece more tightly combined with the finger, to prevent relative sliding between the finger elastic traction piece and the finger during exercise, and to avoid error in the measurement signal, but it is not necessary to use.

Further: The back of the hand buffer pad is fixed under the back of the hand fixing plate.

The back of the hand cushion is fixed under the back of the hand fixing plate, which can be made of elastic material, and sponge is recommended. When the present invention is worn by human hands, the back of the hand cushion pad can play a buffering role between the back of the hand and the back of the hand fixing plate, thereby improving comfort.

Further: Finger cushion pads are pasted under the finger elastic traction piece.

Finger cushion pads are pasted under the finger elastic traction piece, which can be made of elastic materials, and sponge is recommended. When the present invention is worn by a person's hand, the finger cushion pad can play a buffering role between the finger and the finger elastic traction piece, thereby improving comfort.

Working principle of the present invention: a back of the hand fixed plate with a mounting groove, 5 sliding potentiometers are installed above the back of the hand fixed plate by screws, and the position of the potentiometer can be adjusted by adjusting the position of the screw in the mounting groove. The two ends of the palm elastic fixing band are respectively fixed on the left and right sides of the back of the hand fixing plate, and the back of the hand buffer pad is pasted below the back of the hand fixing plate. A finger elastic traction piece is fixed on the sliding end of the potentiometer, and a finger buffer gasket is pasted below the finger elastic traction piece. During the wearing process, the human hand stretches between the back of the hand fixing plate and the palm elastic fixing belt, and at the same time uses the first-level finger cot and the second-level finger cot to cover the fingers with the finger elastic traction piece respectively. When the hand is bent and straightened, the sliding potentiometer will be driven to slide through the finger elastic traction piece. A certain voltage is applied to both ends of the sliding potentiometer, and the voltage of the sliding potentiometer changes when the finger is bent or straightened, and the bending degree of the finger is judged by detecting the voltage change.

Beneficial effect:

The sliding potentiometer is used as the measuring element, and the position signal can be conveniently converted into an electric signal when voltage is applied to the potentiometer, and the sliding potentiometer is cheap, which reduces the cost of the present invention.

A finger elastic traction piece is fixed on the sliding end of the sliding potentiometer, which can be made of a certain rigid and elastic material, and it is recommended to use an elastic plastic piece. When the present invention is worn by a human hand, the finger elastic pulling piece can pull the sliding end of the sliding potentiometer to slide, and convert the bending signal of the finger into the position signal of the sliding potentiometer.

The overall beneficial effect of the present invention is: low cost, comfortable to wear, and can adapt to different finger spacing, finger thickness and finger length.

Description of drawings:

Fig. 1 is the structural diagram of the back of the hand fixing plate of the present invention

Fig. 2 is the front structural view of the present invention

Fig. 3 is the back structure diagram of the present invention

Figure 4 is a schematic diagram of finger stretching during the work of the present invention

Fig. 5 is a schematic diagram of finger bending when the present invention works

Figure 6 is a schematic diagram of potentiometer voltage output when the present invention works

In the figure 1. Back of hand fixing plate, 2. Back of hand buffer gasket, 3. Palm elastic fixing belt, 4.1~4.5 sliding potentiometer, 5.1~5.5 finger elastic traction piece, 6.1~6.5 Finger buffer gasket, 7.1~7.5 Level 1 Finger cots, 8.1 to 8.5 second-level finger cots.

Detailed ways:

In Figure 1, there are 5 pairs of potentiometer mounting slots on the back of the hand fixing plate, and each pair of mounting slots fixes a sliding potentiometer.

In Fig. 2 and Fig. 3, the two ends of the palm elastic fixing belt 2 are respectively fixed on the left and right sides of the back of the hand fixing plate 1, the back of the hand buffer gasket 2 is fixed on the bottom of the back fixing plate 1, and the sliding potentiometers 4.1 to 4.5 are respectively used Screws are fixed on the back of the hand fixed plate 1. The sliding end of the sliding potentiometer 4.1-4.5 is fixedly linked with one end of the finger elastic traction piece 5.1-5.5, and a finger buffer pad is pasted below the finger elastic traction piece 5.1-5.5.

In Fig. 4, when the human hand wears the finger posture collector, the finger elastic traction piece 5.1-5.5 is connected to the thumb, index finger, middle finger, ring finger and The little finger is fixed, and when the fingers are stretched, the sliding ends of the sliding potentiometers 4.1-4.5 corresponding to the five fingers are placed close to the wrist.

In FIG. 5 , when the finger posture collector is worn by the human hand, when the finger is bent, the sliding ends of the sliding potentiometers 4.1-4.5 corresponding to the five fingers slide toward the finger under the drive of the finger elastic traction piece.

In Figure 6, when a voltage of 5V is applied to both ends of the sliding potentiometer, the figure shows the corresponding relationship between the voltage change of the sliding potentiometer and its finger posture. When the finger is fully straightened, the voltage output of the sliding potentiometer is 0V; when the finger is fully bent, the voltage output of the sliding potentiometer is 5V.

Claims (5)

1. a finger gesture collector is characterized in that: comprise the back of the hand fixed head, palm elastic reducing-fixing band, slip potentiometer, finger elastic traction sheet and one-level fingerstall; The two ends of palm elastic reducing-fixing band are individually fixed in the left and right sides of the back of the hand fixed head, and 5 slip potentiometers are fixed on the back of the hand fixed head; 5 potentiometric sliding ends that slide are fixedly connected with an end of 5 finger elastic traction sheets, and each finger elastic traction sheet is fixing through 1 one-level fingerstall and finger, and said one-level fingerstall is enclosed within finger root; All adopt power supply to apply voltage at each potentiometric two ends of sliding.

2. a kind of finger gesture collector according to claim 1 is characterized in that: 5 pairs of potentiometer mounting grooves are arranged, every pair of fixing slip potentiometer of mounting groove on the back of the hand fixed head.

3. a kind of finger gesture collector according to claim 1 is characterized in that: also adopt secondary fingerstall adversary thrum property machine leader and finger to fix, the secondary fingerstall is enclosed within the finger tip.

4. a kind of finger gesture collector according to claim 1, it is characterized in that: the back of the hand buffering spacer is fixed in the below of the back of the hand fixed head.

5. a kind of finger gesture collector according to claim 1 is characterized in that: the below of finger elastic traction sheet is pasted with the finger buffering spacer.

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