91results about How to "Reduce the probability of interference" patented technology

The invention provides a cooking utensil. The cooking utensil comprises an outer pot, a temperature controller, an elastic part and a heating disc. Guide holes are formed in the outer pot, the temperature controller is put in the outer pot, supporting legs are arranged at the bottom of a shell of the temperature controller, and the supporting legs penetrate through the guide holes. The elastic part is arranged between the shell and the outer pot, and the upper end and the lower end of the elastic part abut against the shell and the inner bottom wall of the outer pot respectively. The heating disc is arranged in the outer pot and covers the temperature controller, a receding hole is formed in the heating disc, and the top of the temperature controller can protrude out of the receding hole.The supporting legs make contact with the guide holes tangentially, and the sizes of the cross sections of the guide holes are larger than those of the cross sections of the supporting legs. Accordingto the cooking utensil, the supporting legs make contact with the guide holes tangentially, and the sizes of the cross sections of the guide holes are larger than those of the cross sections of the supporting legs, it is effectively avoided that a main temperature controller greatly rubs with an outer pot in the moving process, so that the main temperature controller is jammed, thus, the problemof jamming of the temperature controller is conveniently and effectively solved, and the cooking utensil is simple in structure and beneficial for popularization.

The invention discloses a gravity inductive type axis-counting device and a method for detecting the state of a tract district thereof, relating to a railway transport management device and a management method thereof. The gravity inductive type axis-counting device comprises an axis detector, an axis-counting information processing system, an input-output subsystem and a power supply, wherein the axis detector is composed of a wheel electronic detector and a gravity inductive type sensor unit; the wheel electronic detector consists of an axis-counting CPU unit, a signal processing unit, a sensor power unit and a state detecting unit; the axis-counting information processing unit comprises a CPU unit, a communication unit, and an I/O unit; and the input-output subsystem consists of a dynamic drive assembly unit, a relay and a button. In the method, a wheel signal is detected by a gravity inductive type sensor arranged on a rail, and is transmitted to the wheel electronic detector and the axis-counting information processing unit for processing, thus judging the state of the tract district. The invention has the advantages of accurate detection result, high reliability, scientific method and capability of realizing automatic judgment on the idle and occupied states of the tract district.

The invention discloses a wireless local area network access point capable of intelligent antenna scanning covering and access. Beam scanning is conducted through four array element antenna arrays and the narrow beam forming technology of an intelligent antenna, a beacon is sent on scanning beams by the access point, after a certain period passes by, response to the beacon by a user site is received or a detecting request of the user site is received, the access point can determine the number and the orientation of surrounding sites, and namely, all-around or sector coverage is provided. When the user request is found, access is provided for a user through narrow beams pointing to the user site. Due to the fact that the narrow beams are scanned in time, the covering angle is much smaller than that of the 360-degree all-around covering and due to the Mohaupt effect of the narrow beams, the transmitting power of the access point is reduced and the jamming intensity and the jamming probability which are acted on other wireless devices in the same frequency band by the wireless local area network are effectively reduced; due to the fact that the user accessing beams are narrowed, the jamming probability in receiving of the access point by the other wireless devices in the same frequency band is reduced when the user sends the request.

The present invention discloses a ship safety forewarning method based on a classification detection of collision. The ship safety forewarning method provided by the invention comprises the following steps: (a) acquiring state information of a ship on the basis of an established three-dimensional virtual scene of a ship navigation channel; (b) classifying the collision types according to the driving direction angle with respect to the ship in the three-dimensional virtual scene; (c) calculating the minimum safe distance among ships through different determination methods of collision types; and (d) performing collision determination and emitting safety warning to the ships in a dangerous situation. The ship safety forewarning method based on classification detection of collision provided by the invention is capable of visually and accurately determining the ships in a potential collision danger in the navigation channel three-dimensional virtual scene in advance, and has the advantages of good accuracy, low operation cost, low interference rate and good application prospects.

The invention relates to a key detection method and a device. The method is characterized by comprising the following steps: detecting a key to acquire a key signal; and carrying out the frequency-change sampling of the key signal, outputting a control signal when the frequency of sampling effective key signals reaches or exceeds a preset frequency, wherein the frequency-change sampling refers to the repeated process of progressively increasing a sampling frequency from a first frequency to a second frequency and progressively decreasing the second frequency to the first frequency, and preset time resides in each frequency of the sampling frequency. The invention decreases the interference frequency of the key detection by external signals.

A reception antenna arrangement for motor vehicles for the GHz frequency range that is formed as a combined system for the reception of circularly polarized waves and/or vertically polarized waves by a plurality of dipole antennas. Their length is not greater than ¾ of the wavelength. To form a diversity function, at least one switching or reversing device (2) is provided so that at least two signals that are different in terms of diversity and received from the dipole antennas are alternatively supplied to at least one antenna connection point for diversity reception so that one or several more favorable reception signals can be selected and provided to the antenna amplifiers.

The invention relates to the technical field of intelligent recommendation, and discloses a message pushing method, a device and a terminal device based on the intelligent recommendation. The method comprises the following steps: the characteristic data of a push channel associated with a user in a preset time length before the push node is counted; the characteristic data at least comprises a reminder priority, a push message arrival rate, a click rate of the push message by the user and a conversion rate of the push message by the user; Determining a target pushing channel from the pushing channel according to the characteristic data; The target push message is pushed through the target push channel. The implementation of the method can improve the user perception of push message on thepremise of reducing the information interference to the user.

The invention discloses an ultrahigh-frequency RFID reader-writer which comprises a radio frequency module, an ultrasonic sensor, a storage unit, a processor, a power module and a radio frequency module power source. The radio frequency module is used for receiving and sending signals and the power is adjustable; the ultrasonic sensor is used for detecting the distance between the radio frequency module and an ultrahigh-frequency RFID label object; the storage unit is used for storing the distance, detected by the ultrasonic sensor, between the radio frequency module and the ultrahigh-frequency RFID label object; the processor is used for controlling the storage unit to store the detected distance and controlling the radio frequency module to adjust the radio frequency power and is respectively connected with the storage unit and the radio frequency module; the power module is used for supplying power to the ultrasonic sensor and the processor; the radio frequency module power source is used for supplying power to the radio frequency module. The ultrahigh-frequency RFID reader-writer can dynamically adjust the radiation power of a radio frequency power amplifier, the power of a system can be optimized, the electric power can be reasonably saved, and the probability of interference between adjacent reader-writers can be reduced.

The invention relates to a quasi-real-time cable-free network seismograph system based on an ultra wide band wireless module. The system is provided with a display and control central station and multiple groups of acquisition nodes. The display and control central station is provided with a host computer, an ultra wide band wireless module A, an epicenter trigger, an intelligent battery, and a voltage stabilization module A. Each group of acquisition node is provided with a single-chip microcomputer module, an ultra wide band wireless module B, a signal conditioning and data acquisition module, an intelligent battery, and a voltage stabilization module B. All the acquisition nodes are arranged into 14 groups, each group assigns an aggregation node, other acquisition nodes in the group send data to the aggregation node in order, and all the aggregation nodes then send the data to the display and control central station. After being started up, the system can self-organize wireless Internet of Things, and the ultra wide band wireless modules A, B work at 3.1-10.6GHz. The system is small in size, light in weight, low in cost, low in battery power consumption and high in interference resistance. Relative positions of the nodes can be resolved automatically, an error range of the positioning precision is from -1.0cm to 1.0cm, and the synchronization precision is 1[mu]s. The system is suitable for being popularized and applied in the field of geological exploration.

The invention relates to a tubular holder for holding a tail end of a mechanical arm of a bone drill. The tubular holder comprises a main holding pipe, an opening snap ring, a locking sleeve and a plurality of cone-shaped holding blocks, wherein the holding pipe is arranged at the tail end of the mechanical arm; the opening snap ring is positioned in the middle outside the main holding pipe; the locking sleeve is sleeved at a tail end of the outer part of the main holding pipe, the plurality of cone-shaped holding blocks are respectively positioned in holding block holes arranged at the tail end of the outer part of the main holing pipe and are arranged in the locking sleeve. The tubular holder can not only have the positioning function along the axial line of the tubular holder, but alsoensure that the axial line of the bone drill is consistent with the axial line of the holder all the time, thereby realizing the accurate repeated positioning of the bone drill after disassembly and assembly at one time; in addition, the tubular holder also has the characteristics that the operation is simple, the structure is compact, the holding force is small, the holding is reliable, etc.

The embodiment of the invention provides a data sending method, an apparatus, a base station and a user's device. The method applied in the base station includes detecting the uplink interference situation of a cell, determining whether the uplink interference situation satisfies the preset interference scope or not, and if yes, sending a first control signal to instruct the user's device to start a time-division multiplex transmission mode which indicates employing a time-division mode to send DCH data on unlike carrier frequency. In this way, any user's device can send DCH data without changing a conventional network structure based on the time-division multiplex transmission mode when other user's devices do not send data. Accordingly, other user's devices may not send data when any one user's device sends DCH data based on the time-division multiplex transmission mode, thereby minimizing the probability of interference when user's devices send data.

The present invention provides a laser radar receiving device, laser radar and an echo processing method thereof. The laser radar receiving device comprises a convergence module and a detection modulewhich are arranged in order along a receiving optical path; the convergence module is suitable for receiving and converging laser echo; and the detection module is suitable for detection of the laserecho converged by the convergence module. The detection module comprises a first linear array detector and a second linear array detector which respectively comprise a plurality of detection units ina linear array mode, and the linear array directions of the first linear array detector and the second linear array detector form a predetermined inclined angle. The laser radar comprises a transmitting device and the laser radar receiving device provided by the embodiment of the invention. The laser radar receiving device, the laser radar and the echo processing method thereof can reduce the number of detection units and can enhance the anti-interference performances of the laser radar.

The invention relates to the technical field of mobile communication business. According to the method, adjoining cells are taken as a whole, the coverage balance and the business load balance are uniformly considered. After different strategies are selected, the relative balance between the resource allocation and the business requirement within the range of the adjoining cells of whole network can be realized respectively. The problems in the existing methods can be solved. The method has the beneficial effects that 1. the adjustment of resource allocation and the adjustment of each cell service region are combined with each other, the relative business load balance of the adjoining regions is sufficiently considered, and the quantity of the serving cells within business hot spot regions can be increased as far as possible, so that on one hand, the allocation of each region within the network can be relatively balanced, the frequency plan can be simplified, and the interference probability can be reduced; and on the other hand, due to more cell serving business hotpot regions, the risk of a system can be greatly reduced; and 2. the suggest for adjusting the telephone traffic sharing parameters is also sufficiently combined with the coverage and the business balance, so that the mandatory characteristic of the business sharing operation completely controlled by the parameters in the existing method can be greatly reduced.

The invention provides a displacement assembly and a variable valve lift device, and relates to the technical field of vehicles. The displacement assembly comprises a displacement sleeve; a groove isformed in the outer wall of the displacement sleeve, and is spirally arranged in the axis of the displacement sleeve, and the distance between the two side walls of each end of the groove is larger than the distance between the two side walls of the middle of the groove. When the displacement assembly is used, the displacement sleeve is arranged on a core shaft, the core shaft rotates to be capable of driving the displacement sleeve to rotate in the axis of the core shaft, a pin shaft extends into the groove at this moment so that the displacement sleeve can be driven to move in the axial direction of the core shaft, and therefore a cam on the core shaft is driven to move to the suitable position in the axial direction of the core shaft to adjust valve lift. As the width of the groove is variable, the widths of the two ends of the groove are larger that the width of the middle of the groove, and when the pin shaft extends into and extends out of the two ends of the groove, the probability when interference occurs between the pin shaft and the side wall of the groove can be reduced, impact of the pin shaft to the displacement sleeve is reduced, and the process of adjusting the valvelift is more stable.

The invention discloses a weighing device of a CAN bus elevator car, comprising an elevator control system and a transducer, wherein the transducer is arranged in an equipment room and connected with the elevator car of the elevator through a tractor; and the lower part of the elevator car is provided with a beam. The weighing device of the CAN bus elevator car also comprises an inductive proximity weighing sensor, an elevator car main control board and a computer board which are electrically connected in sequence, wherein the computer board outputs a signal to the transducer and the elevator control system. The weighing device of the CAN bus elevator car can ensure the real time, the accuracy and the flexibility of signal transmission and can realize the smoothness and the comfort of the elevator running.

The invention provides a cooking utensil and an upper cover of the cooking utensil. The upper cover of the cooking utensil comprises an upper face cover, a first actuation part, a material discharge cavity door and a second actuation part, wherein the upper face cover is provided with a washing cavity body, and the washing cavity body is provided with a material discharge hole for discharging materials; the first actuation part is arranged on the upper face cover; the material discharge cavity door can cover the material discharge hole, or can translate in a plane vertical to the central axisof the material discharge hole to be separated from the material discharge hole, so that the material discharge hole is open; the second actuation part is fixed on the material discharge cavity door,is used for realizing actuation and fixing with the first actuation part when the material discharge cavity door covers the material discharge hole, and is separated from the first actuation part whenthe material discharge cavity door is separated from the material discharge hole. For the upper cover of the cooking utensil provided by the technical scheme, by utilizing the actuation and fixing ofthe first actuation part and the second actuation part, the stable covering of the material discharge cavity door with the material discharge hole can be guaranteed, and meanwhile, the purposes of reducing driving energy consumption and reducing fatigue damage of a power device are achieved.

The invention discloses a rapid frequency hopping synchronization method based on TODh. The method comprises the following steps that: after communication starts, a transmitter sends a certain numberof synchronization hops as synchronization heads, the synchronization frequency is calculated according to TODh information, a synchronization frame comprises a front protection sequence, a rear protection sequence and a synchronization sequence, and different synchronization frequencies correspond to different synchronization sequences; a receiver calculates a search frequency according to TODh information of the receiver, and performs parallel capture on the frequency based on all synchronization sequences; the position of a synchronization hop is judged according to the matched synchronization sequence after successful capture, and the TODh difference value between the receiver and the transmitter is further judged; and the receiver performs TODh correction and automatically supplementsTOD1 information to calculate the service hopping frequency, and synchronization succeeds. The TODh information can be hidden in the synchronization frequency and the synchronization sequence, directsending is not needed, the receiving end searches and captures on the specific frequency, capturing can be completed in one group of synchronization hops, and the method has the advantages of being short in synchronization time, reliable in synchronization, easy and convenient to operate, wide in application range and the like.

The invention discloses an air guide plate assembly of an air conditioner and the air conditioner comprising the same. The air guide plate assembly of the air conditioner comprises a mounting box andan air guide plate, wherein the mounting box is used for containing a motor, and the mounting box comprises an arc-shaped outer wall surface; the air guide plate is suitable for being connected with the motor to drive the air guide plate to rotate around the arc-shaped outer wall surface; the center point of the contour line of the cross section of the air guide plate does not coincide with the rotation axis of the air guide plate; lines, parallel to the rotation axis, of the inner surface of the air guide plate serve as reference lines; the reference lines are parallel to the arc-shaped outerwall surface; when the air guide plate moves, the distances from the reference lines to the arc-shaped outer wall surface are equal. According to the air guide plate assembly of the air conditioner,provided by the invention, the arc-shaped outer wall surface of the mounting box is parallel to the reference lines; when the air guide plate moves, the distances from the reference lines to the arc-shaped outer wall surface are equal; and accordingly, when the air guide plate can rotate within a large angle range, the probability of interference between the air guide plate and the mounting box isreduced, and the containing space of the mounting box can be increased.

An intelligent arrangement and assembly method of the feature numbers based on radiation units comprises the following steps: A) grouping the radiation units to be assembled, photographing and measuring the radiation units one by one, numbering the radiation units one by one, and calculating a required mouth edge center distance and a mouth edge margin; B) sequencing, numbering and marking serialnumbers of to-be-assembled arrangement positions on a radiation unit array assembly bottom plate; C) enabling an upper computer to carry out radiation unit assembling arrangement planning; D) enablingthe upper computer to determine a radiation unit arrangement planning optimization result; and E) enabling a robot to automatically and intelligently arrange the radiation units according to the position serial number of the bottom plate, the arrangement planning optimization result and the feature numbers and assemble the radiation units into an array according to the output data of the upper computer. The one-time assembly success rate and the efficiency of the whole assembly process are improved, the assembly preparation period is greatly shortened, and the assembly precision and consistency of the radiation unit are greatly improved; and completely efficient and automatic operation can be achieved for large-scale radiation unit array arrangement and assembly which are difficult to achieve by manpower.

The present invention discloses a data measurement method and device based on a surface acoustic wave sensor, wherein the method comprises a step A of emitting an electromagnetic wave to the surface acoustic wave sensor, and receiving the return power of the surface acoustic wave sensor; a step B of increasing an emission frequency to emit the electromagnetic wave continuously according to a first sweep frequency step size, and receiving the return power after each emission until the return power of a full frequency band of the surface acoustic wave sensor is obtained; a step C of calculating the maximum value first power and the second largest second power in the return power of the sweep frequency points, and between the emission frequencies corresponding to the first power and the second power respectively, adopting a closed loop control algorithm to reduce the sweep frequency step size gradually to emit the electromagnetic wave, and receiving the return power; a step D of repeating the step C until the last sweep frequency step size reaches a preset second sweep frequency step size, and calculating the maximum value third power in the last return power.

The invention relates to a loading/unloading mechanical arm system for slice part punching. The system consists of a loading mechanical arm and an unloading mechanical arm. The loading mechanical arm and the unloading mechanical arm adopt the same structural design; and the system mainly comprises a mechanical arm large arm, a mechanical arm small arm, a lifting table, a guide column, a lead screw nut mechanism, a base, a vacuum sucker, a hand frame and the like. The loading and unloading arms both have four degrees of freedom: three degrees of rotational freedom and one degree of moving freedom; during working, the four degrees of freedom are matched to enable the tail ends of the loading and unloading mechanical arms to reach above a part; and the slice part is sucked or put down through the vacuum sucker mounted on the hand frame at the tail end of the mechanical arm, so that the loading and unloading work of the system is realized.

The invention relates to a bus communication control circuit and a control method thereof. The bus communication control circuit comprises at least one switch module; one switch module is arranged between one to-be-connected device and a bus; and the switch module is used for detecting the communication state of the to-be-connected equipment and controlling the to-be-connected equipment to be connected into the bus or disconnected from the bus according to the communication state. According to the technical scheme provided by the invention, the switch module is arranged between the to-be-connected equipment and the bus, and the to-be-connected equipment is controlled to be connected into the bus or disconnected from the bus by detecting the communication state of the to-be-connected equipment, so that compared with the technical scheme that all equipment is always connected with the bus in the prior art, according to the invention, the to-be-connected equipment can be accessed to the bus as required, so that the probability that the to-be-connected equipment is interfered by other equipment on the bus and the other equipment on the bus is interfered is reduced, and the communication reliability is improved.

The invention provides a two-dimensional data concealed transmission method based on data-driven multi-subcarrier mapping, relating to the technical field of data communication. The method includes the following steps: performing second-dimensional data subcarrier mapping based on a differential system; performing first-dimensional data modulation based on an OFDM system; performing channel transmission; performing second-dimensional data demodulation based on subcarrier detection after receiving a signal; and performing first-dimensional data demodulation based on FFT. According to the schemeof the invention, the differential system and an OFDM technology are combined, the number of subcarriers is increased, and based on the original operation of performing parallel multi-subcarrier modulation on first-dimensional transmission data, second-dimensional transmission data is used to control the selection of the subcarriers, and thus the concealed transmission of the second-dimensional transmission data can be implemented, and the anti-interference performance of the communication process can be improved.

The present invention provides a test system for obtaining the position of a moving body. The test system comprises at least one set of a sensitive body arranged on a moving body to be measured, a position sensing unit, a photoelectric unit, a position signal transmission optical cable and a position data processing unit; the position data processing unit includes a box body and three sensors of the same type, wherein the three sensors are arranged at certain intervals so as to form a structure shaped like a Chinese character "pin"; the sensors are arranged in the box body; the box body is fixed at a position which is separated from the sensitive body by a detection distance; the photoelectric unit is arranged in the box body and is used for performing photoelectric isolation and level conversion on electric signals which reflect the position of the moving body and are outputted by the position sensing unit so as to obtain optical signals which can be remotely transmitted by the optical cable and reflect the position of the moving body; the position signal transmission optical cable is used for transmitting the optical signals to the position data processing unit; and the position data processing unit is used for obtaining the position of the moving body to be measured according to the optical signals. According to the test system of the invention, the optical cable is adopted as a signal transmission medium, can remotely transmit signals and has strong anti-electromagnetic interference capacity.