1414 results about "Contact mode" patented technology

The invention discloses a method of 3D contour measurement of a workpiece on a conveyor belt based on line laser scanning. The method comprises the following steps of obtaining camera internal and external parameters through camera calibration, carrying out filtering and laser light strip center position initial extraction through an image preprocessing step, carrying out sub-pixel precision refinement on the center coordinates of a light bar, obtaining a light plane equation through the laser light plane calibration and finally carrying out reconstruction and measurement of the three-dimensional contour information of a workpiece to be measured. The workpiece 3D contour measurement brought forward by the invention has the following advantages: a high measurement precision which means thethree-dimensional contour information of the workpiece to be measured can be accurately obtained through the laser light bar extraction with sub-pixel precision and 3D reconstruction; a fast measurement speed which means real-time measurement of 3D contour information of the workpiece to be tested can be realized to improve the efficiency of industrial production site operations; and low hardwarecosts which is realized in a hardware implementation mode in which laser is combined with a monocular camera. Accordingly, the technical method of the application has advantages such as being in a non-contact mode, high in measurement precision, fast in speed and low in cost, and can be applied to an industrial automation production process to realize accurate measurement of the 3D contour information of the workpiece on the conveyor belt.

The invention relates to a device for measuring thickness, in particular to a testing device for thickness of a slice medium. The testing device comprises a fixed mount, a reference shaft, a testing shaft, an elastic press sheet, a magnet, and a Hall sensor, wherein two ends of the reference shaft are installed on the fixed mount by bearings, the reference shaft is fixedly sleeved with a reference roller; two ends of the testing shaft are fixedly installed on the fixed mount; the testing shaft is provided with at least one testing roller base of which one end is rotated freely around the testing shaft; a free end of the testing roller base is provided with a testing roller which can rotate freely; the testing roller and the reference roller are formed in elastic contact; the elastic press sheet is arranged correspondingly to the testing roller base; one end of the elastic press sheet is fixed on the fixed mount and the other end of the elastic press sheet forms a free end and applies a pressing force to the testing roller base at the reference roller; the free end of the elastic press sheet is fixedly provided with the magnet on the opposite side to the testing roller; and the Hall sensor for testing the displacement of the magnet in a non-contact mode is fixed on the fixed mount opposed to the magnet.

The invention relates to the field of electronic health detection, and discloses a non-contact type automatic heart rate measurement system and a measurement method. The non-contact type automatic heart rate measurement system adopts a non-contact mode to remotely collect video data of a measured person and performs data conversion to realize automatic heart rate measurement, and is characterized by comprising a video collection module, a framing extraction ROI (region of interest) module, a primary color component separation module, a time-domain signal generation module, a blind source separation module, a signal screening module and a heart rate analysis module. Compared with the prior art, the non-contact type automatic heart rate measurement system and the measurement method are based on an automatic face track and blind source separation technology, adopt a noninvasive and non-contact type remote physiological signal detection method, overcome influence of motion artifact in video record, has motion tolerance, is high in measurement accuracy, and can perform heart rate measurement automatically and simultaneously.

A mobile phone intelligent card with radio frequency communication function is featured as on one hand using control software of CPU in card to carry out short distance data communication in no contact mode by utilizing its radio frequency function and its auxiliary unit, on the other hand using APDU protocol to control mobile phone i.e. using STK function of mobile phone to control screen and keyboard of mobile phone to let mobile phone be used as no contact IC card for realizing application such as penny payment and so on.

The invention provides a friction-nanogenerator-based molecular sensor. The sensor comprises a first conducting element, a first friction layer, a second conducting element, a second friction layer, a modified layer and an elastic connecting component, wherein the first friction layer is placed on the lower surface of the first conducting element in a contact mode, the second friction layer is placed on the upper surface of the second conducting element in the contact mode, and the modified layer is combined with the upper surface of the second friction layer; by the elastic connecting component, the lower surface of the first friction layer is opposite to the upper surface of the second friction layer, and a certain distance is respectively kept between the lower surface of the first friction layer and the upper surface of the second friction layer; the lower surface of the first friction layer is at least partially in contact with the upper surfaces of the second friction layer under the action of external force, and the distance respectively between the lower surface of the first friction layer and the upper surfaces of the second friction layer can be restored under the action of the elastic connecting component when external force is removed, and simultaneously, electrical signals are outputted outwards through the first conducting element and the second conducting element; the electrical signals can be changed after the modified layer is combined with a target material to be detected.

A mixed mode smart card is disclosed including an internal circuit having a CPU, a contactless mode processor adapted to prosecute a contactless mode operation, and a contact mode processor adapted to prosecute a contact mode operation. The mixed mode smart card also comprises a power voltage control block receiving contact and contactless mode power source voltages and supplying the internal circuit with an internal power source voltage derived either during an entire period of mixed mode operation.

An AFM that combines an AFM Z position actuator and a self-actuated Z position cantilever (both operable in cyclical mode and contact mode), with appropriate nested feedback control circuitry to achieve high-speed imaging and accurate Z position measurements. A preferred embodiment of an AFM for analyzing a surface of a sample in either ambient air or fluid includes a self-actuated cantilever having a Z-positioning element integrated therewith and an oscillator that oscillates the self-actuated cantilever at a frequency generally equal to a resonant frequency of the self-actuated cantilever and at an oscillation amplitude generally equal to a setpoint value. The AFM includes a first feedback circuit nested within a second feedback circuit, wherein the first feedback circuit generates a cantilever control signal in response to vertical displacement of the self-actuated cantilever during a scanning operation, and the second feedback circuit is responsive to the cantilever control signal to generate a position control signal. A Z position actuator is also included within the second feedback circuit and is responsive to the position control signal to position the sample. In operation, preferably, the cantilever control signal alone is indicative of the topography of the sample surface. In a further embodiment, the first feedback circuit includes an active damping circuit for modifying the quality factor (“Q”) of the cantilever resonance to optimize the bandwidth of the cantilever response.

A non-contact control method and a non-contact control device are applied to a lock control device in a non-contact mode for manipulation. The non-contact control device includes a master control module and a slave control module. Both the master control module and the slave control module include a radio frequency identify (RFID) component and a Bluetooth component. In the master control module and the slave control module, the RFID component serves as first-layer authentication and unlocking and starts the Bluetooth component, and the Bluetooth component serves as second-layer authentication and unlocking and triggers a circuit control device. The master control module actively starts the slave control module and performs pairing and unlocking, so as to achieve a non-contact locking and control mode with low energy consumption and high security.

The invention discloses an absorption tower for desulfurization and denitrification combined with an oxidant in forward-flow and back-flow spraying mode and a method. The absorption tower includes two washing sections: a first section is a desulfurization loop and arranged on the lower portion of the absorption tower, and sulfur dioxide and hydrogen chloride are removed through slurry forward-flow and back-flow and smoke contact cleaning; a second section cleans oxidized smoke pollutants in slurry back-flow and smoke contact mode mainly for removing oxynitride and heavy metal mercury. A slurry divider is arranged between the two cleaning sections, the bottom of the slurry divider is an oxidization area, and strong oxidant is sprayed in the area. For reducing consumption of the oxidant, a catalyst is added in second-loop slurry for achieving auxiliary oxidization. Sulfur dioxide, oxynitride, heavy metal mercury and the like can be removed simultaneously in a washing tower by the technology, and the absorption tower has the advantages of being high in efficient and simple and suitable for various combustion devices including fuel coal power stations, refuse incineration plants, organic and inorganic production enterprises and the like.

The invention discloses a connector plug, a connector socket and a connector combination of the connector plug and the connector socket. The plug and the socket respectively comprise an insulating body, two rows of contact terminals, two baffles and a shielding shell. The plug is internally provided with the upper baffle and the lower baffle for the contact terminals, and the socket is internally provided with the upper baffle and the lower baffle for the contact terminals, the baffles of the contact terminals are conducted with the corresponding shielding shells in a contact mode so as to improve the shielding effect and to ensure that contact transmission is stable. The socket baffles are provided with contact elastic sheets, when the plug and the socket are combined, the contact elastic sheets make elastic contact with the socket baffles to form a shielding protection loop, the signal interference between the different rows of contact terminals is further avoided, and the plugging force of the connector combination can be enhanced. The connector plug and the connector socket are internally and respectively provided with hook plates and partition plates to separate the two rows of contact terminals, the hook plates and the partition plates are conducted with the corresponding shielding shells in a contact mode, inverted hook parts of hooks are buckled in the concave parts of the partition plates, and the inverted hook parts are conducted with the concave parts of the partition plates in a contact mode.

The invention discloses a testing device and a testing device of an anchor-tension type retaining wall model. The testing device of the anchor-tension type retaining wall model comprises a testing groove, a main force-bearing surface cantilever retaining wall, an auxiliary force-bearing surface cantilever retaining wall, a loading system and a testing system. The main force-bearing surface cantilever retaining wall and the auxiliary force-bearing surface cantilever retaining wall are arranged inside the testing groove, the main force-bearing surface cantilever retaining wall comprises a main force-bearing surface vertical steel plate and a first horizontal steel plate which are connected with each other, the auxiliary force-bearing surface cantilever retaining wall comprises an auxiliary force-bearing surface vertical steel plate and a second horizontal steel plate which are connected with each other, the main force-bearing surface vertical steel plate is provided with a first rock bolt through hole, and the auxiliary force-bearing surface vertical steel plate is provided with a second rock bolt through hole. The loading system comprises a vertical loading structure and a prestress loading structure, the lower portion of the vertical loading structure is connected with the floor, the upper portion of the vertical loading structure is connected with the filling in a contact mode, and the prestress loading structure is connected with both sides of the main force-bearing surface cantilever retaining wall. The testing device of the anchor-tension type retaining wall model is convenient to mount and dismount, reusable and capable of reducing the cost and improving the working efficiency.

The invention is applied to the technical field of information security, and provides a watermark generation method, a client side and a server. The method includes the steps of sending logging information to the server so as to enable the server to verify the identity of a user on the client side according to the logging information, generating unique identification data corresponding to the user on the client side, and sending the unique identification data corresponding to the user on the client side to the client side when verification of the identity of the user on the client side passes; receiving the unique identification data sent by the server; generating watermarks according to the unique identification data and superimposing the watermarks to multimedia data to be played. The identity of a publisher of the multimedia data can be verified through the watermarks in the multimedia data, the situation that the multimedia data are obtained to carry out infringement through recording or shooing and other non-contact modes is achieved, and a spreading source can be effectively tracked.

The invention is a NFC controller able to communicate in contact mode with first and second applications and able to establish and to manage a first communication between a contactless reader device and the first application by using a specific type of contactless protocol. The NFC controller is able to establish and to manage a second communication between the contactless reader device and the second application by using the specific type of contactless protocol. The NFC controller is adapted to handle simultaneously said first and second communications.

A heterodyne detection technique for highly localized IR spectroscopy based on an AFM. A pulsed IR source illuminates a sample and causes contact resonance of an AFM probe, which is a function of localized absorption. The probe is operated in intermittent contact mode and is therefore oscillated at a resonance frequency. A secondary oscillation is mixed in to the probe oscillation such that the sum of the secondary oscillation and the IR source pulse frequency is near another harmonic of the probe. A mixing effect causes measurable probe response at the other harmonic allowing data to be taken away from the pulse frequency, resulting in background effect rejection and improved spatial resolution.

The invention relates to a food cooking utensil comprising a food container and an electromagnetic heating device. The food container is placed on the electromagnetic heating device; the electromagnetic heating device comprises a machine body, electromagnetic coils and a control circuit board, the electromagnetic coils are located in the machine body, and the control circuit board is electrically connected with the electromagnetic coils; the electromagnetic heating device is further provided with vibrating reeds, vibrating spaces are arranged between the vibrating reeds and the upper surfaces of the electromagnetic coils and between the vibrating reeds and the bottom surface of the food container, and the vibrating reeds induce an alternating magnetic field of the electromagnetic coils to generate ultrasonic waves. The vibrating reeds are arranged above the electromagnetic coils to induce the electromagnetic field to generate the ultrasonic waves which act on food in the food container, mouthfeel of the food is improved, and application of the ultrasonic waves to kitchen household appliances is achieved. The ultrasonic waves are generated and transmitted in a non-contact mode, direct contact with the high-temperature food container and the high-temperature electromagnetic coils can be avoided, temperature influences are small, and performance is stable and reliable. In addition, no driving circuit needs to be added, the structure is simple, and cost is low.

The invention relates to the field of notebook computer heat dissipation, in particular to a heat dissipation base of a notebook computer. The heat dissipation base comprises a base outer shell and a semiconductor chilling plate, the base outer shell is divided into a refrigerating cavity and a heat dissipation cavity which are relatively independent spaces, a turbine fan and a cooling copper plate are installed in the refrigerating cavity, an axial fan and a heat dissipation aluminum plate are installed in the heat dissipation cavity, the cooling copper plate is attached to the cold face of the semiconductor chilling plate, the heat dissipation aluminum plate is attached to the hot face of the semiconductor chilling plate, the cooling copper plate and the heat dissipation aluminum plate are provided with fin sets, a large amount of cooling air is produced through the intensified heat exchanging measure of the turbine fan, the axial fan, the fin sets and a heat pipe and then the interior of the computer can be cooled. The heat dissipation base has the advantages that a refrigerating face and a heat dissipation face are completely and closely attached to the cold face and the hot face of the semiconductor chilling plate in a contact mode respectively, the structure is simple, the heat exchanging effect is higher, and the refrigerating effect is better.

The invention relates to a non-contact movable intelligent charging method for an electric vehicle and a system thereof. The system is characterized by comprising a charging post and a vehicle-mounted charging terminal, and duplexing communication is realized between the charging post and the vehicle-mounted charging terminal by a 2-27MHz shortwave communication mode. The invention has the following beneficial effects that the system can charge electric vehicles in normal running in a non-contact mode so as to finish charging for the electric vehicles in the running process, avoid the limitation that the electric vehicles need to be stopped for charging, indirectly solve the problems of limited endurance capability of rechargeable batteries and longer charging time, effectively solve the problems of charging distance, charging efficiency and the like by calculating and adjusting the transmitting frequency of a magnetic resonance charging circuit in real time, completely realize intellectualization in the charging process, and have practicability and safety as well as efficiency and energy conservation.

The invention discloses a high-speed electric transmission connector requiring slight plug-pull force. By a contact component composed of a plurality of flexible single needles, 'elastic and elastic' contact mode of contact pairs is realized, and slighter plug-pull force is achieved on the premise of ensuring high reliability in electrical connection. According to the distance among nodes, dielectric constant Epsilon r of a transmission medium is lowered by drilling blind holes in a base and by means of gaps between conductors and holes, in doing so, impedance matching of the signal transmission length direction is realized, and consumption during signal transmission is lowered. In addition, cross talk between differential pairs is reduced by setting earth points between the differential pairs in a staggered manner, and high transmission speed is realized. The high-speed electric transmission connector is widely applicable to manufacture of high-core-number and high-density high-speed transmission connector.

The invention discloses a confidential express method. The method comprises the following steps: establishing an express information processing center; encrypting and saving the address information and receiving password of a recipient and generating a key code through a server; sending the key code to an initiator through the recipient; sending the key code, the goods information and the initiator identification to the server through the initiator for encrypting, saving and generating a bill number; sending the goods together with the bill number; reading the bill number and checking the goods information by an undertaking worker; transporting the goods to a sorting place to enter the transfer stage after checking; reading out the bill number by a sorting worker; sorting the goods according to a targeted city; transferring to the next station until arriving at the delivery station of the targeted city; reading the bill number by an express delivery worker to obtain the receiving address and contact mode; delivering the goods to the recipient; sending the receiving password to the server to verify to obtain the goods by the recipient. With the adoption of the confidential express method, the information of the recipient and the initiator can be effectively prevented from leaking; in addition, a complete system of signing after receiving is provided. The invention also discloses a confidential express system.

The invention discloses a method for realizing information interaction as a non-contact mode, correlation equipment and a system so as to increase safety of near filed communication (NFC) mobile terminal usage. The information interaction method comprises the following steps that when a secure element (SE) application comprised by the SE which is arranged in the NFC mobile terminal, the NFC mobile terminal receives a confirmation request of using the SE application; the NFC mobile terminal indicates a NFC mobile terminal user to carry out confirmation according to the received confirmation request; after confirmation information returned by the NFC mobile terminal user is received, the confirmation information is carried in an authentication request and is sent to a SE application server, and the SE application server is requested to carry out verification on the confirmation information.

Sensors, systems, and methods for monitoring environmental conditions, such as physical, electromagnetic, thermal, and / or chemical parameters within an environment, over extended periods of time with the use of one or more electromechanical sensing devices and electronic circuitry for processing an output of the sensing devices. The sensing devices each include a cantilevered structure and at least one contact configured for contact-mode operation with the cantilevered structure in response to the cantilevered structure deflecting toward or away from the contact when exposed to the parameter of interest. The cantilevered structure has at least first and second beams of dissimilar materials, at least one of which has at least one property that changes as a result of exposure to the parameter.

The invention discloses a vibration modeling and analyzing method of a crack impeller structure of a centrifugal compressor. The vibration modeling and analyzing method comprises the steps of firstly, providing a modeling method of a centrifugal impeller, obtaining a whole model by rotating and converting a finite element model of a section of the impeller, reducing the DOF (Degree of Freedom) of a system by adopting a hybrid interface modal synthesis method, and simulating a breath effect of a crack by defining a contact mode on a crack interface; secondly, providing a method for solving large-scale symmetrical sparse matrix-inverse matrix, and thus obviously reducing the memory space needed by calculation; finally, providing a method for carrying out statistical analysis on resonant frequency of the crack impeller structure, considering dissonant factors such as manufacturing error and state degradation which exist in an actual impeller, and obtaining statistical regularity of structure resonant frequency under a random dissonant mode. According to the vibration modeling and analyzing method disclosed by the invention, the calculating accuracy is ensured, obvious improvement effect of calculating efficiency is realized at the same time, and a high-efficiency analyzing method is provided for optimal design of the impeller and quantitative diagnosis of the crack.

The invention relates to a transient electromagnetic logging instrument which comprises a shell, a circuit module and an electromagnetic probe system, wherein the circuit module is arranged in the shell, and the electromagnetic probe system is connected with the circuit module. The circuit module is sequentially connected with a power voltage regulator module, a PWM (pulse width modulation) module, a high-power isolating transformer bank and a power conversion module through a direct-current power supply to form a direct-current power supply circuit and a main control circuit taking a digital signal processor as a core, and a communication bus, a power bus, a control bus and a data bus are arranged on the periphery of the main control circuit. The electromagnetic probe system comprises a transmitting coil and a plurality of receiving coils, wherein the transmitting coil is provided with a magnetic core. The instrument detects casing damage and effectively measures the formation resistivity of an open hole well and a cased well in a non-contact mode. High-power transient excitation is realized by the aid of internal iron cores of the coils, the excitation intensity of a transient electromagnetic field is improved, and the formation resistivity is finally obtained by necessarily graduating and processing measured original signals.

A method for recognizing shot photos by facial expressions is used for shooting of photos or videos of mobile equipment. A main camera acquires an object or a scene required to be shot; an auxiliary camera acquires complete face information of a photographer and image information; whether the facial expression, which is captured by the auxiliary camera, of the photographer or the image information of an action of the photographer is matched with a preset condition or not is judged; and if the facial expression, which is captured by the auxiliary camera, of the photographer or the image information of the action of the photographer is matched with the preset condition, a shooting shutter procedure is triggered, and a photo is shot. By using the method, the shooting means of the mobile equipment is flexible; when the photographer inconveniently touches a shuttle key, a photo can be shot by a simple facial expression or a simple action of the photographer; and moreover, a shutter triggering method is in a non-contact mode, and the possibility of blurring of photos due to manual shaking is greatly reduced.

The present invention relates to a sensing apparatus for sensing an object, wherein the sensing apparatus (1) comprises an arrangement (7) of sensing elements for sensing a property of the object (2). The sensing elements are operable in a contact mode, in which a sensing is performable, while the sensing elements are in contact with the object (2), and in a non-contact mode, in which a sensing is performable, while the sensing elements are not in contact with the object. The sensing apparatus comprises preferentially further a mode determination unit for determining whether a sensing element is in contact with the object (2) or not.

The invention provides a pulsed friction generator and a frictional electricity generating method. The generator comprises a first friction layer, a second friction layer and a touch switch, wherein the upper surface of the first friction layer is provided with a first electrode layer in a contact mode, the lower surface of the second friction layer is provided with a second electrode layer in a contact mode, the lower surface of the first friction layer and the upper surface of the second friction layer are contacted with and then separated from each other form a set distance, the first electrode layer and the second electrode layer are enabled to be connected through turning on the touch switch, and the touch switch is turned off after pulse electric signals are outputted between the first electrode layer and the second electrode layer; and then, when or after the lower surface of the first friction layer is contacted with the upper surface of the second friction layer again, the first electrode layer and the second electrode layer are connected again through turning on the touch switch, the touch switch is turned off when the pulse electric signals are outputted between the first electrode layer and the second electrode layer, and so forth, the lower surface of the first friction layer is separated from or contacted with the upper surface of the second friction layer, thereby converting mechanical energy applied to the generator into the pulse electric signals to output.

A heterodyne detection technique for highly localized IR spectroscopy based on an AFM. A pulsed IR source illuminates a sample and causes contact resonance of an AFM probe, which is a function of localized absorption. The probe is operated in intermittent contact mode and is therefore oscillated at a resonance frequency. A secondary oscillation is mixed in to the probe oscillation such that the sum of the secondary oscillation and the IR source pulse frequency is near another harmonic of the probe. A mixing effect causes measurable probe response at the other harmonic allowing data to be taken away from the pulse frequency.

The invention discloses a torque sensing system for bottom brackets of bicycles, which comprises a torque sensor, a wireless signal transmitter and a wireless signal receiver, wherein the torque sensor is arranged at a bottom bracket for bicycles, and the wireless signal transmitter and the bottom bracket are relatively fixed; the wireless signal receiver is arranged at a fixed position (near the bottom bracket) of a bicycle body, and the wireless signal transmitter is used for receiving sensing signals transmitted by the torque sensor, and then sending the sensing signals to the wireless signal receiver in a non-contact mode, so that the sensing signals are difficult to attenuate or lose in the process of transmission, therefore, torques provided for a bicycle by a rider can be sensed accurately.