42results about How to "Avoid blunt" patented technology

A coated surgical fastener is provided for an easy visualization within tissue. The coated surgical fastener includes a core and a relatively non-reflective coating applied about the core. There is also disclosed an illuminated staple cartridge for use with a surgical stapling device having a light source. The illuminated staple cartridge includes a transparent insert and a relatively nontransparent U-shaped outer channel at least partially surrounding the transparent insert. Windows formed in sides of the U-shaped outer channel allow defined amounts of light to project from the sides of the illuminated staple cartridge.

A method (200) for controlling a pan / tilt (610), a controller (400, 500) and a pan / tilt (610), capable of intelligently controlling the motion response speed of the pan / tilt (610) in combination with the acceleration of a base (11), It can avoid the problem that if the fixed speed is set too high, the shooting picture will be stiff and not soft, and if the fixed speed is set too low, the problem of not being able to closely follow the target will be caused. The control method (200) of the cloud platform comprises: determining the acceleration (210) of the base (11) of the platform (610); according to the acceleration of the base (11), controlling the motion response speed of the platform (610), so that The attitude of the camera on the platform (610) is adjusted (220).

A gait planning method for improving the walking stability of a six-legged robot. The method comprises: moving: lifting two non-adjacent legs, and initiating movement of the two legs along translation paths of the terminal ends of the legs, the translation paths being parallel to a line connecting a center of a body of the robot and a destination point, wherein during moving, there are always four legs contacting the ground and two non-adjacent legs being lifted, and joints of each leg are periodically rotated to corresponding predetermined angles, such that the terminal end of each leg is lifted up and lands on the translation path thereof; and turning: rotating a camera module of a head portion of the robot to a direction directly facing a target destination, and then performing the basic moving operation. By employing the method, the present invention prevents the robot from moving in a staggering, rigid or leaning manner, and enables a smooth and stable gait. In addition, upon rotating, only the head portion needs to be rotated rather than the body, thus enabling the robot to always move in a straight line facing forwards without twisting, and achieving fast change of the forward direction without moving the legs or fast movement toward a specified direction.

The invention discloses a vocal music performance teaching method and system. The teaching method is realized through the following processes: constructing a virtual three-dimensional vocal music performance teaching environment scene model, constructing a learner model; designing experiments, using virtual reality scene stimulation materials to stimulate learners to generate different emotions , collect the EEG signals of the learners; compare the EEG signals of the learners' vocal music learning without using the VR head-mounted display device with the EEG signals of the vocal music learning using the VR device, and obtain the learner's stimulation in the virtual reality scene. According to the degree of influence of different emotions on the singing state, adjust the teaching plan according to the obtained results; the equipment involved includes the model building module integrated in the VR head-mounted display device, the learner's facial image capture module, and the hand image capture module , the equipment has a high degree of integration, and using the equipment and method provided by the present invention for teaching can significantly improve the learning effect.

The invention discloses an electric vehicle hydraulic brake system according with brake energy recovery and having ABS / ESP function, which comprises a pedal and a pedal push rod. The pedal push rod is connected with a pedal brake valve; a P port of the pedal brake valve is connected with an outlet oil way of a high pressure accumulator, a T port of the pedal brake valve is connected with an oil way of a liquid accumulator, and an A port of the pedal brake valve is connected with an oil way of an ABS / ESP hydraulic valve block; the oil way connecting the pedal brake valve and the ABS / ESP hydraulic valve block is provided with a pedal brake valve pressure sensor; the high pressure accumulator supplies oil by an oil pump through a one-way valve, and the oil pump is connected with the liquid accumulator; the ABS / ESP hydraulic valve block are respectively connected with four wheel cylinders on the front and rear of a vehicle through an oil way, and the four wheel cylinders are respectively provided with a wheel speed sensor; and a brake controller of the vehicle is in circuit connection with the pedal brake valve pressure sensor, the high pressure accumulator, the ABS / ESP hydraulic valve block and each wheel speed sensor. The hydraulic brake system has high safety, can meet the requirement of electric vehicle series brake energy recovery technology, and can realize the ABS / ESP function by controlling the ABS / ESP hydraulic valve block.

The invention relates to a concrete retaining wall drainage hole greening structure and method and belongs to the technical field of construction engineering. Retaining wall drainage holes are provided with grooves capable of draining water and storing water respectively, the grooves internally comprise permeable layers and planting soil layers, the planting soil layers are arranged on the permeable layers, and the planting soil layers are used for planting plants. Permeable geotextile is laid between the planting soil layers and the permeable layers. The permeable layers are internally provided with spring permeable pipes. A retaining wall is provided with water falling pipes. The spring permeable pipes are connected into the water falling pipes, and water falling pipes are connected into an urban sewage system or a detention and retention facility. The concrete retaining wall drainage hole greening structure and method are simple in design, convenient to construct and capable of enhancing the durability and reliability of the concrete retaining wall; meanwhile, the surface of concrete is greened and beautified; the structure can store water as well, and the construction concept of wisdom city and sponge city is achieved.

The invention relates to a retaining wall for constructing a sponge city and a construction method thereof. The retaining wall is a concrete structure wall, a solar power system is arranged on the top of the retaining wall, flower troughs are arranged on the outside of the retaining wall, and the wall A water delivery pipe, a water collecting pipe and a water suction pipe are arranged inside, a water storage tank is arranged under the wall body, a water pump is arranged in the water storage tank, the water pump is connected with the water suction pipe, and the water storage tank is connected with the urban drainage system at the same time. The invention makes full use of solar energy, which is a huge amount of energy, has ingenious design and convenient construction, and is used for building an intelligent sponge city.

Embodiments of the present disclosure disclose methods and devices for speech recognition. A specific embodiment of the method includes: in response to receiving the first speech, matching the first speech with a predetermined keyword set; if the matching is successful, continuing to receive the second speech, and matching the first speech with the predetermined keyword set; After the second segment of speech is merged, speech recognition is performed to obtain a speech recognition result text; the speech recognition result text is subjected to semantic analysis to obtain a speech instruction; if the speech instruction and the matching keyword belong to the same semantic field, the speech instruction is executed. This embodiment can reduce the traditional voice interaction to be completed twice to one time. The speech recognition process is combined with semantics, thus effectively suppressing false triggers.

The invention discloses a multifunctional massage machine, comprising a cassette mechanism of massage machine and a guide rail, which is characterized in that a fixing frame device, a kneading device, a lapping device, a traveling device and a shoulder device are arranged in the cassette mechanism of massage machine. The kneading device, the lapping device and the traveling device are arranged on the fixing frame device and the shoulder device is arranged in the kneading device. The kneading device is connected with the shoulder device by crank and screw. The multifunctional massage machine has the advantages of simple structure, compact size, light weight, comfortable feeling, soft massage, advanced technology and wide use. The multifunctional massage machine can not only be used in massage chair, but also in backset or mattress of bed or other similar structure, so is suitable for wrinkly and wage-earners.

The invention discloses a realization method for running of a hexapod robot. The realization method comprises the following steps: a camera module is controlled to rotate to be aligned with a target end point, and a translation path of the body centre of the robot is calculated by virtue of the coordinates of the target end point; a corresponding relationship between a foot coordinate system of each foot and a body coordinate system is established by virtue of a transform algorithm, and a translation path of the tail end of each foot is calculated; through a movement track of the tail end of each foot on the vertical plane of the translation path of the tail end of the foot, a corresponding rotation angle of each joint of the tail end of the foot on different coordinate points of the movement track is obtained, and a preset rotation angle of the joint is configured; and the robot is controlled to lift up two non-adjacent feet, run along the translation path of the tail end of each foot at the beginning, and always keep four feet touching the ground during running, wherein the two non-adjacent feet are lifted up, each joint of each foot is periodically rotated to the corresponding preset angle, and the tail end of each foot is lifted up and down on the translation path thereof. The hexapod robot disclosed by the invention is smooth and stable in gait, the head is rotated only and the body is fixed during steering, and the front surface of the robot is kept always straight forward, without angle distortion.

The invention relates to a novel modular combined seat, and belongs to the technical field of household articles of daily use. The seat comprises a seat main body module and seat armrest modules; wherein the seat main body module and the seat armrest modules are made by wooden materials and formed through inserting combination. The modular combined seat provided by the invention has the beneficialeffects that the seat is concise in modeling, free from excessive decorations, simple in structure, reasonable in design, low in cost and strong in practicability; and on the basis of the full use ofa limited space, various furniture can be accommodated and arranged.