Abstract: A handcuff structure, comprising a lock shell, a lock cover, a movable lock ring and a key; the side of the lock shell close to the lock cover is provided with a lock box; the inside of the lock box is provided with a rotating wheel, and the center of the rotating wheel is provided with a rotating shaft; one end of the rotating shaft extends into a first shaft hole at the bottom of the lock box, and the other end of the rotating shaft extends into a second shaft hole at the bottom of the lock cover; the first shaft hole and the second shaft hole are coaxially arranged. The invention can effectively prevent prisoners from opening handcuffs through wires, needles, wooden sticks and other items, avoid criminals from escaping, and improve the overall locking effect of handcuffs.

Abstract: A bicycle rear-wheel drive mechanism comprises a fixed shaft, a hollow toothed disc shaft, a wheel shaft, a sprocket shaft, an end cap and pin posts, the hollow toothed disc shaft is composed of a shaft cylinder and a toothed disc arranged at one end of the shaft cylinder, the toothed disc is provided with an array of semi-circular slots located at the edge of the disc body; in this design, the structure is stronger, the torque transmitted is greater, and the driving ability is stronger; replacing the original ball bearings used in bicycles with standardized tapered roller bearings allows the mechanism to be adjusted to the optimal axial and radial positions after installation, while also improving sealing performance and durability.

Abstract: Systems and methods for continuous insects sensing are described. One example method includes receiving a flow at a singulator, the flow comprising one or more insects; singulating the insects into a single-file flow of insects; sensing, using a sensor, insects within the single-file flow of insects; and incrementing a counter based on each sensed insects in the single-file flow of insects.

Abstract: Systems and methods for continuous insects sensing are described. One example method includes receiving a flow at a singulator, the flow comprising one or more insects; singulating the insects into a single-file flow of insects; sensing, using a sensor, insects within the single-file flow of insects; and incrementing a counter based on each sensed insects in the single-file flow of insects.

Abstract: The invention proposes a kind of bending bolt type anti-loosening nut, which relates to the technical field of mechanical fastening. It comprises an upper nut and a lower nut, the upper nut and the lower nut are stacked on the outside of the bolt and used to tightly connect the bolt to the connecting piece, the lower nut is arranged close to the connecting piece, the upper nut is arranged on the outer end surface of the lower nut; the adjacent end between the upper nut and lower nut is provided with an inclined surface, the inclined surface is inclined towards the interior of the upper nut, so that an inclined plane angle with deformation space between the upper nut and lower nut is formed; the invention achieves the effect of preventing nut loosening, is low in price, easy to manufacture, and suitable for small or miniature anti-loosening nuts.

Abstract: A system includes an acoustic lure and a sensor package disposed within an interior volume of an insect trapping container and a computing device in communication with the acoustic lure and the sensor package configured to instruct the acoustic lure to output an acoustic tone. The computer device is further configured to receive sensor data from the sensor package, the sensor data representative of insects within the interior volume. Responsive to receiving the sensor data, the computing device is configured to instruct an imaging device to capture image data representative of the insects within the interior volume or determine insect count data based on the sensor data. The computing device is configured to then transmit output data to a remote computing system, the output data including at least one of a first portion of the image data or a second portion of the insect count data.

Abstract: An insect trapping system includes an enclosed container having an entrance hole formed in a vertical wall and an acoustic lure device located within the container. The enclosed container may be formed from a transparent material. The system may also include a support stand, formed from a dark-colored material, and used to support the container.

Abstract: Systems and methods for continuous insects sensing are described. One example method includes receiving a flow at a singulator, the flow comprising one or more insects; singulating the insects into a single-file flow of insects; sensing, using a sensor, insects within the single-file flow of insects; and incrementing a counter based on each sensed insects in the single-file flow of insects.

Abstract: Systems and methods for continuous insect pupae sensing are described. One example method includes receiving a flow at a singulator, the flow comprising one or more insect pupae; singulating the insect pupae into a single-file flow of insect pupae; sensing, using a sensor, insect pupae within the single-file flow of insect pupae; and incrementing a counter based on each sensed insect pupae in the single-file flow of insect pupae.

Abstract: This document describes techniques and devices for detecting twist input with an interactive cord. An interactive cord may be constructed with one or more conductive yarns wrapped around a cable in a first direction (e.g., clockwise), and one or more conductive yarns wrapped around the cable in a second direction that is opposite the first direction (e.g., counter-clockwise). A controller measures one or more capacitance values associated with the conductive yarns. In response to detecting a change in the one or more capacitance values, the controller determines that the change in the capacitance values corresponds to twist input caused by the user twisting the interactive cord. Then, the controller initiates one or more functions based on the twist input, such as by controlling audio to a headset by increasing or decreasing the volume, scrolling through menu items, and so forth.

Abstract: A chainsaw which has a low profile chain cover and a chain bar tightening clutch system. The chain bar tightening clutch system can have a bar tightening knob which drives a clutch which governs the amount of pressure applied to the chain bar by operating the bar tightening knob. The chainsaw can have a chain bar tensioning system which can have a tensioning drive member in an offset position from the tensioning post which positions the tensioning post to achieve a chain tension and compact chainsaw design. The chainsaw can also have an oil cap with a lock channel having a detent with produces a sound when moved from a disengaged to an engage position with an oil reservoir.

Abstract: This document describes techniques and devices for detecting twist input with an interactive cord. An interactive cord may be constructed with one or more conductive yarns wrapped around a cable in a first direction (e.g., clockwise), and one or more conductive yarns wrapped around the cable in a second direction that is opposite the first direction (e.g., counter-clockwise). A controller measures one or more capacitance values associated with the conductive yarns. In response to detecting a change in the one or more capacitance values, the controller determines that the change in the capacitance values corresponds to twist input caused by the user twisting the interactive cord. Then, the controller initiates one or more functions based on the twist input, such as by controlling audio to a headset by increasing or decreasing the volume, scrolling through menu items, and so forth.

Abstract: This document describes techniques and devices for detecting twist input with an interactive cord. An interactive cord may be constructed with one or more conductive yarns wrapped around a cable in a first direction (e.g., clockwise), and one or more conductive yarns wrapped around the cable in a second direction that is opposite the first direction (e.g., counter-clockwise). A controller measures one or more capacitance values associated with the conductive yarns. In response to detecting a change in the one or more capacitance values, the controller determines that the change in the capacitance values corresponds to twist input caused by the user twisting the interactive cord. Then, the controller initiates one or more functions based on the twist input, such as by controlling audio to a headset by increasing or decreasing the volume, scrolling through menu items, and so forth.

Abstract: One example system for insect detection includes a block of material defining a transit opening and a sensing opening, the transit opening defined along a first axis in a first direction, and the sensing opening defined to provide a light path to traverse a cross-section of the transit opening; a light emitter positioned at a first end of the sensing opening and oriented to project light through the sensing opening and across the transit opening; and a plurality of light detectors positioned at a second end of the sensing opening and oriented to receive the projected light and to output detector signals based on an amount of detected light.

Abstract: A chainsaw which has a low profile chain cover and a chain bar tightening clutch system. The chain bar tightening clutch system can have a bar tightening knob which drives a clutch which governs the amount of pressure applied to the chain bar by operating the bar tightening knob. The chainsaw can have a chain bar tensioning system which can have a tensioning drive member in an offset position from the tensioning post which positions the tensioning post to achieve a chain tension and compact chainsaw design. The chainsaw can also have an oil cap with a lock channel having a detent with produces a sound when moved from a disengaged to an engage position with an oil reservoir.

Abstract: A chainsaw which has a low profile chain cover and a chain bar tightening clutch system. The chain bar tightening clutch system can have a bar tightening knob which drives a clutch which governs the amount of pressure applied to the chain bar by operating the bar tightening knob. The chainsaw can have a chain bar tensioning system which can have a tensioning drive member in an offset position from the tensioning post which positions the tensioning post to achieve a chain tension and compact chainsaw design. The chainsaw can also have an oil cap with a lock channel having a detent with produces a sound when moved from a disengaged to an engage position with an oil reservoir.

Abstract: An insect trapping system includes an enclosed container having an entrance hole formed in a vertical wall and an acoustic lure device located within the container. The enclosed container may be formed from a transparent material. The system may also include a support stand, formed from a dark-colored material, and used to support the container.

Abstract: This disclosure relates to systems and methods for sensing insect sex or species. One example sensing system includes a light transmitter having a light emitter, and a light collimator positioned to receive light emitted by the light emitter, and collimate the received light; a light receiver positioned and oriented to receive the collimated light, the light receiver including a light detector, and a light decollimator positioned to receive collimated light from the light transmitter, and focus the received light onto the light detector; a non-transitory computer-readable medium; and a processor in communication with the non-transitory computer-readable medium, the processor configured to execute processor-executable instructions stored in the non-transitory computer-readable medium to: receive one or more signals from the light detector; and determine a wingbeat frequency of an insect traversing the collimated light based on the one or more signals.

Abstract: One example insect sensing system includes a light emitter configured to emit light; a structured light generator positioned to receive the emitted light and configured to generate structured light from the emitted light; a plurality of light sensors arranged in a line, each of the light sensors oriented to receive at least a portion of the structured light and output a sensor signal indicating an amount of light received by the respective light sensor; a processing device configured to: obtain the sensor signals from each of the light sensors, and determine a presence of an insect based a received sensor signal from at least one light sensor, the sensor signal indicating a reduced amount of received light by the at least one light sensor. Another example insect sensing system includes a camera comprising an image sensor and a lens having an aperture of f/2.8 or wider; and a processor configured to obtain an image from the camera and detect an insect in the image.

Abstract: One example insect sensing system includes a light emitter configured to emit light; a structured light generator positioned to receive the emitted light and configured to generate structured light from the emitted light; a plurality of light sensors arranged in a line, each of the light sensors oriented to receive at least a portion of the structured light and output a sensor signal indicating an amount of light received by the respective light sensor; a processing device configured to: obtain the sensor signals from each of the light sensors, and determine a presence of an insect based a received sensor signal from at least one light sensor, the sensor signal indicating a reduced amount of received light by the at least one light sensor. Another example insect sensing system includes a camera comprising an image sensor and a lens having an aperture of f/2.8 or wider; and a processor configured to obtain an image from the camera and detect an insect in the image.