Abstract: A signal detection system includes a motherboard and a signal detection card. The signal detection card includes a connecting plate, a first interface, and a detection module. The first interface is mounted in the connecting plate. The connecting plate includes a first signal detection terminal. The first interface is coupled to the first signal detection terminal of the connecting plate. The first interface is coupled to the motherboard to receive a signal from the motherboard. The detection module is configured to couple to the first signal detection terminal of the connecting plate and detect the signal via the first interface. A signal detection card is also provided.

Abstract: A centralized control mechanism for a multi-motor drive, the mechanism including: a plurality of independent motor drive modules; a power source module; an interface control microprocessor; a communication module; and a plurality of interface modules of motors. The power source module supplies power for each circuit, and each independent motor drive module drives one permanent magnet motor. Each motor drive module includes a motor microprocessor, an inverter circuit, and a phase current detection circuit. The phase current detection circuit transmits detected data to the motor microprocessor, and the motor microprocessor outputs multiple paths of PWM signals to the inverter circuit and controls the inverter circuit. An output end of the inverter circuit is connected to a coil winding of the PM motor. The plurality of motor microprocessors communicates with the interface control microprocessor via a data bus. The interface control microprocessor communicates with the outside via the communication module.

Abstract: The present invention provides a governor assembly and an elevator, wherein the governor assembly includes: a support; a first axle rotatably supported by the support; a main pulley rotatably mounted on the first axle relative to the first axle; a first guide pulley near the main pulley; a first safety device actuated by the rotation of the first axle; and a centrifugal tripping mechanism which enables, when a rotating speed of the main pulley exceeds a preset value, the main pulley and the first axle to be coupled and rotate together. The governor assembly according to the present invention is of a compact structure and is applicable to a small mounting space.

Abstract: The present invention relates to the technical field of an elevator, and provides a governor of an elevator. The governor of the present invention is provided with a reset push part which is disposed on a ratchet wheel and is used for resetting the governor from a second state to a first state, wherein the reset push part and a pawl of the governor are set in such a manner that when a rope sheave rotates in a direction, the reset push part pushes the pawl to reset the pawl to a position corresponding to the first state.

Abstract: The invention relates to electrospun three-dimensional (3D) nanofibrous scaffolds (with controllable porosities as high as about 96%) and methods of preparing the same. The electrospun 3D scaffolds possess interconnected and hierarchically structured pores with sizes ranging from tens of nanometers to hundreds of micrometers. In embodiments, the 3D scaffolds can be biocompatible and/or biodegradable. In some embodiments, the 3D scaffolds can be conductive. In some embodiments, the 3D scaffolds can contain bioactive species.

Abstract: A lighting device comprising a housing arranged with at least one first housing space and at least one second housing space; at least one first illumination module respectively arranged in the at least one or more first housing space and at least one first auxiliary functional module, respectively arranged in the at least one second housing spaces; wherein each of the first auxiliary functional modules includes at least one of a communication module, a sensor module or a camera module. The lighting device arranged according to an embodiment of the present invention not only satisfies the lighting demand of existing urban planning, but also facilitates the upgrading of intelligent lighting devices with such functions as temperature detection, traffic monitoring and alarm, at a low cost.

Abstract: A centralized motor controller for receiving commands from an application system controller and for controlling operation of a plurality of independent motors. The centralized motor controller includes: a power supply; a microprocessor; and an interface circuit for motor control including at least two inverter units and two rotor position detection units. The power supply supplies power for each circuit part. The motors are controlled by the microprocessor via the interface circuit for motor control. The number of the motors is equal to or more than three, in which, at least two of the motors are permanent magnet synchronous motors in the absence of a motor controller. The permanent magnet synchronous motors are driven by the microprocessor via the inverter units, respectively. Rotor position data of the permanent magnet synchronous motors are transmitted to the microprocessor via the rotor position detection units, respectively.

Abstract: A method for predicting high-temperature operating life of an integrated circuit (IC) includes performing bias temperature instability tests and high-temperature operating life tests on a device of the IC, establishing a relationship between the device bias temperature instability and the IC's high-temperature operating life based on a result of the bias temperature instability tests and the high-temperature operating life tests. The method further includes providing a lot of subsequent integrated circuits (ICs), performing wafer-level bias temperature instability tests on a device of the ICs, and predicting high-temperature operating life of the ICs based on a result of the wafer-level bias temperature instability tests and based on the established relationship between the device's bias temperature instability and the IC's high-temperature operating life. The method can save significant effort and time over conventional approaches for accurate prediction of high-temperature operating life of an IC.

Abstract: An indoor digital centralized controller system (DCCS) that is connected to a controller of an application system and accepts orders from the controller of the application system and controls at least one motor to work. The DCCS includes a power supply, a master control unit (MCU), a plurality of motor control modules, a programming port module, and an input interface. The power supply is configured to supply power for circuits. The MCU is connected to and communicates with the controller of the application system via the input interface. An outer computer is capable of rewriting control programs of the MCU via the programming port module. The MCU is connected to a motor via a motor control module. The motor includes a stator assembly, a rotor assembly, and a shell assembly. The stator assembly and the rotor assembly are coupled magnetically.

Abstract: A ballastless track system comprises a base; a track slab arranged above the base; a poured-field layer arranged between the base and the track slab, the poured-field layer being formed by filling self-compacting concrete, emulsified asphalt cement mortar or resin mortar, and the inside of the poured-field layer being of a steel bar structure; a connecting piece, the first end of the connecting piece extending into the track slab, and the second end of the connecting piece extending into the poured-field layer; and two rows of rail-seat arranged on the track slab in parallel; and rails arranged on the rail-seat. The ballastless track system is high in reliability, good in durability, and easy in construction and maintenance.

Abstract: Examples of methods and systems for providing calibration for eye gesture recognition are described. In some examples, calibration can be executed via a head-mountable device. A method for calibration of a system may account for changes in orientation of the head-mountable device, update recognition of the eye gestures, or increase efficiency of the system, for example. The head-mountable device may be configured to receive signals indicative of eye gestures from an eye gesture-detection system and in response to receiving a second command confirming that the signal is indicative of an eye gesture command, to make adjustments to the eye gesture recognition system and/or the reference signals. The head-mountable device may calibrate an eye gesture recognition system via implicit or explicit calibration, for example.

Abstract: Systems and methods for providing constant airflow based on direct motor power control and advanced motor system modeling are described. A power and speed of a motor may be determined based on static pressure in the system. A target airflow rate for the system may be obtained, and a target motor power that yields the target airflow rate in the system may be determined based on the determined speed of the motor and the obtained target airflow rate for the system. A determination of whether the determined motor power is approximately equal to the target motor power may be made, and the power of the motor may be adjusted when the motor power is not approximately equal to the target motor power.

Abstract: A multi-domain vertical alignment display panel and a pixel structure are provided. The pixel structure includes three subpixels arranged in a row, wherein the three subpixels respectively consist of an upper alignment region and a lower alignment region. The upper alignment region and lower alignment region respectively includes four, subregions, and alignment directions of the upper and lower adjacent subregions as well as the left and right subregions are perpendicular to each other. Alignment directions of any two adjacent subregions respectively located in the upper and lower adjacent subpixels as well as the left and right adjacent subpixels are identical. The alignment directions of any two adjacent subregions respectively located in the vertically adjacent upper alignment region and lower alignment region are identical, so as to reduce dark lines and increase light transmittance.

Abstract: A mobile secret communications method based on a quantum key distribution network, comprises the following steps: a mobile terminal registering to access the network and establishing a binding relationship with a certain centralized control station in the quantum key distribution network; after a communication service is initiated, the mobile terminals participating in the current communication applying for service keys from the quantum key distribution network; the quantum key distribution network obtaining addresses of the centralized control stations participating in service key distribution during the current communication, designating a service key generation centralized control station according to a current state indicator of each centralized control station; the service key generation centralized control station generating service keys required in the current communication and distributing the keys to the mobile terminals participating in the current communication.

Abstract: A computer system includes a display, a motherboard and a power circuit. The display includes a video interface. The motherboard includes a super input-output (SIO) chip. The power circuit includes a first switch unit, a second switch unit, a third switch unit, and an oscillator. When the display is powered on, the video interface outputs a high level signal, the first switch unit is turned on, a power supply powers the oscillator through the first switch unit. The oscillator operates and outputs a high level signal, the second switch unit is turned on, a power-on signal pin of the SIO chip receives a low level signal, and the motherboard is turned on.

Abstract: Example methods and devices are disclosed for generating life-logs with point-of-view images. An example method may involve: receiving image-related data based on electromagnetic radiation reflected from a human eye, generating an eye reflection image based on the image-related data, generating a point-of-view image by filtering the eye reflection image, and storing the point-of-view image. The electromagnetic radiation reflected from a human eye can be captured using one or more video or still cameras associated with a suitably-configured computing device, such as a wearable computing device.

Abstract: Disclosed is a method for allocating a communication key based on an Android intelligent mobile terminal. By establishing a universal secret communication platform on the bottom layer of an Android operating system, an intelligent mobile terminal is equipped with the functions of being able to interact with a secret communication support network, receiving a two-level key and using a received service key after decrypting same, thereby being able to provide universal bottom-layer support for a VoIP secret call, a secret short message, a secret video call, file encryption transmission, secure mobile payment and other communication services which require secrecy support. The secret communication support network provides the service keys required for various communication services for a reformed intelligent mobile terminal, and after obtaining the service keys, the intelligent mobile terminal uses same to conduct the secret communication.

Abstract: A method for unlocking a display screen of an electronic device includes activating the display screen which is locked of the electronic device when receiving a communication signal from a key, and generating an unlocked icon on the display screen. A request is sent to the key for generating first audio information after the unlocked icon is pressed, and the first audio information of an unlock code is received from the key. When the first audio information is the same as second audio information generated by a decryption algorithm stored in the storage device of the electronic device, the display screen of the electronic device is unlocked.

Abstract: The present invention relates to a slider driving mechanism on a CNC assembly machine for assembled camshaft. The mechanism includes a servo motor (1), the host frame (5), ball screw (6), linear guides (9) and the slider body (8), wherein, the servo motor (1), ball screw (6) and linear guides (9) are mounted vertically on the host frame (5). The servo motor (1) connects with the ball screw. The slider body (8) connects with both the ball screw (6) and the linear guides (9). It is driven by a ball screw (6) and moves along a linear guides (9) in the vertical direction. The present invention is novel. It not only can greatly improve the assembly speed of cam, hexahedron on assembled camshaft and improve productivity, but also can eliminate complex gear system. It makes the manufacturing and processing more simple. The installation is also more convenient. It can further improve product quality and manufacturing precision of assembled camshaft.

Abstract: A protection circuit to prevent power-on operations for a motherboard includes a first power supply, a spring mechanical switch attached to a chassis of an electronic device, a plurality of second power supplies with different voltages, and a plurality of electronic switches. The spring mechanical switch includes a first terminal coupled to the first power supply, and a second terminal grounded. First pins of the electronic switches are coupled to the first terminal, second pins of the electronic switches respectively are coupled to the second power supplies, third pins of the electronic switches are capable of powering the motherboard. When the cover is detached from the chassis, the mechanical switch rebounds, the first terminal disconnects and the second terminal are disconnected, the electronic switches are turned off, no voltages output from the third pins of the electronic switches.