136results about How to "Reduce the possibility of interference" patented technology

There is disclosed an automobile hang tag for use in parking control and the like with an integral radio transponder, together with interrogator apparatus associated therewith in a system for parking control or other purposes. The detection range for the RFID interrogator and transponder is at least about six meters (20 feet) to enable rapid control monitoring of parking facilities from a moving vehicle through the back window or front windshield of parked vehicles. Reliable and trouble-free monitoring of the hang tags in a customary rear view mirror location is facilitated by employing directional antennas in the RFID hang tags, increasing the antenna gain while suppressing false signals and noise and improving the range-to-power ratio for the system. The RFID hang tags may be battery powered but are preferably unpowered RFID transponders. Suitable directional antennas employed may include Yagi antennas, log periodic antennas, stacked dipole antennas, spiral or slot antennas or other monodirectional or bidirectional antennas, preferably those suitable for selected frequencies within the 1,000 megahertz to 10,000 megahertz range.

The invention discloses decompressed purge-and-trap processing equipment for a non-volatile organic compound in a water sample and a processing method thereof. The invention is characterized in that the equipment is formed by sequentially connecting a sample heater (1), a purge bottle (2), a trapper (3), a pressure controller (4) and a pump (5), wherein purge gas (6) is connected with the purge bottle (2) through a purge gas inlet (7); the purge bottle is connected with the trapper (3) through a purge gas outlet (8); the trapper (3) is connected with the pump (5) through the pressure controller (4); the gas trapped by the trapper (3) is taken out and then placed into a heater (13) of the trapper; chromatographic carrier gas (14) is connected with a chromatographic injection port (12) in a column oven (11) through the trapper (3) and a transmission pipeline (15); and the chromatographic injection port is connected with a chromatographic detector (9) through a chromatographic column (10). The processing method comprises the following steps: forming a negative pressure environment around a test sample under the action of the pump, and increasing the vapor pressure of the non-volatile organic compound under the negative pressure environment; purging the bottom of the sample by utilizing inert gas so that the target compound can be trapped by the trapper after being blown out from the sample; and finally, resolving the target compound at high temperature and then carrying out chromatographic analysis.

Docking stations having a connector with a compliance mechanism to provide improved durability and flexibility are provided herein. The compliance mechanism may be attached to a connector in a base of a docking station and may include any or all of a flexure, a torsion bar, damping members, a compressive foam member, and an engineered base plate. The compliance mechanism may be configured to provide sufficient rigidity to the connector to support a portable device when mounted on the connector within the dock in an upright position, sufficient flexibility to allow angular displacement of a mounted portable device, and sufficient elasticity to provide a resilient biasing force to return the connector and a mounted portable device from a displaced position to the upright position.

The invention belongs to the field of wireless communication and discloses a timing adjusting method and a base station of a time division duplex system. A timing advance Ta of UE is set to be a value larger than two times of unidirectional transmission delay, thereby enhancing the robustness of TDD equipment when receiving and transmitting receiving-transmitting switching point signals, reducing the interference possibility of the tail part of the receiving time slot to the head part of the subsequent transmitting time slot, and improving the transmission performance on the whole. A protection time interval Tg can be determined according to the variance of a timing advance of a TDD system and the receiving-transmitting switching time of the base station in a TDD mode so as to further calculate the value of the timing advance Ta, wherein the Tg can be also a preset value.

The invention discloses an aerodynamic heat flow measuring device and method for the plume field of an engine in a vacuum chamber. A support is fixedly mounted on an installation platform of a four-axis movement mechanism, the rear end of a heat flow sensor penetrates the rear side of the support, the heat flow sensor is sleeved with an insulated end cover, and an insulation sleeve is arranged between the heat flow sensor and the support. A signal line of the heat flow sensor is placed in a signal line protective piece, and connected to a signal converter by penetrating the front side surface of the support and then lead to a signal collector outside the vacuum chamber via a chamber-through flange. Voltage signals measured by the heat flow sensor are converted into current signals via the signal converter, and then collected by the signal collector, heat flow values are obtained by conversion according to the coefficient of the hot flow sensor, and thus, the aerodynamic heat flow of the plume field of the engine in the vacuum chamber is obtained. The method and device have the advantages that a three-dimensional movement device is cooperated, total-flow-field measurement is realized, and the problem that interference among sensors influences the flow-field form and further leads to inaccurate measurement is completely solved.

The invention provides a two-hybrid yeast for detecting estrogen-like compounds in environmental samples and a preparation method thereof, wherein the yeast contains pGBKT7-ER yeast expression plasmids and pGAD424-GRIP1 yeast expression plasmids, wherein the pGBKT7-ER yeast expression plasmids contain estrogen receptor genes, and the pGAD424-GRIP1 yeast expression plasmids contain estrogen receptor coactivated factor genetic fragments with the sequence of SEQ ID No.2. The invention also provides a bioassay method for detecting the estrogen-like compounds in the environment, which comprises: co-culturing two-hybrid yeast cells and a sample to be detected, adding a reaction liquid of o-nitrobenzene-beta-D-galactopyranoside for reaction, and calculating the concentration of the estrogen-like compounds according to the detected absorbance value of supernatant at 420 nanometers after the reaction stops. The invention adopts the two-hybrid yeast of recombinant estrogen receptor genes for test, and is more close to the actual action conditions of an endocrine system of a mammal; constructed yeast cell genes have stable character and are easy to culture and screen; the screening process of the whole estrogen-like effect is simple to operate; and the required quantity of the sample is small, and the cost is low.

The invention provides a method and device for providing a prompt message. The method comprises the steps that the prompt triggering operation of a user is detected, and an object to be prompted is determined; a user related message of the user is obtained, and the prompt message corresponding to the object to be prompted is determined based on the user related message of the user; the prompt message is displayed based on the preset display rule. Due to the fact that the prompt message provided for the user adapts to the user related message, in other words, the prompt message meets the personalization requirement of the individual user, the prompt message provided for the user meets the actual requirement of the user and conforms to the message browsing habit of the user, the possibility of interference in the user from the prompt message is greatly reduced, the prompt effect is improved, and the user using experience is enhanced.

The invention discloses a method, a device and electronic equipment for controlling a flash lamp, aiming to increase the control accuracy of the flash lamp. The method comprises the following steps: obtaining the actual size of pupils of a user in a current shooting environment; and controlling the flash intensity of the flash lamp according to the actual size of the pupils. According to the embodiment of the method, the device and the electronic equipment, the possibility of interference in the process of ambient light detection is greatly reduced, thereby increasing the control accuracy of the flash lamp.

The invention provides a radio frequency circuit, terminal equipment and a circuit control method. The radio frequency circuit comprises: a first radio frequency receiving and transmitting module, at least one first radio frequency receiving path and a second radio frequency receiving and transmitting module; each first radio frequency receiving path comprises a first antenna, a first switch module, a first filter and a first amplifier; the first antenna is connected with a first contact of the first switch module; a second contact of the first switch module is grounded, a first movable arm of the first switch module is connected with a first end of the first filter, a second end of the first filter is connected with an input end of the first amplifier, and an output end of the first amplifier is connected with a receiving end of the first radio frequency transceiving module; the first switch module is used for controlling the connection state of the first movable arm and the first contact and the connection state of the first movable arm and the second contact. According to the embodiment of the invention, the possibility of interference between antennas connected with different radio frequency transceivers can be reduced.

The invention relates to a six-wheel running system for an interplanetary exploration patrol vehicle. The system comprises three suspension units which are distributed around a bodywork main instrument cabinet with one transversal suspension unit and the other two longitudinal suspension units, wherein, the transversal suspension unit is arranged in the front part of the main instrument cabinet, and comprises a secondary instrument cabinet connected with the main instrument cabinet, and a wheel I and a wheel II which are connected with the left side and the right side of the secondary instrument cabinet respectively; the left longitudinal suspension unit is arranged at the left side of the main instrument cabinet, and comprises a main rocker, and a wheel III and a wheel IV which are connected with two ends of the main rocker respectively; the right longitudinal suspension unit is arranged at the right side of the main instrument cabinet, and comprises a main rocker connected with the main instrument cabinet, and a wheel V and a wheel IV which are connected with two ends of the main rocker respectively. The invention not only well solves the problem of stability of the bodywork to avoid using a differential mechanism and other devices, but also has good trafficability and load balancing capability, and is particularly suitable for various exploration vehicles.

An electric vehicle (10), comprising: an electric device unit (30) arranged upon a floor tunnel (21) and having a plurality of electric devices (40) housed therein; and conductive cables (49, 51) and a cooling pipe (52) that extend from a first motor (13), a second motor (16), and a radiator, and are connected to the electric device unit (30). Connection sections (45, 46) in the electric device unit (30), to which the conductive cables (49, 51) and the cooling pipe (52) are connected, penetrate openings (37, 38) formed in a floor panel (20) and are arranged below the floor panel (20).

The invention discloses a stepped frequency spectrum sensing method based on energy and covariance detection, relates to the frequency spectrum sensing field of cognitive radio, and aims at solving the problem that a present energy detection method is low in the detection accuracy. Energy detection is carried out at a user end; if it is detected that a main user uses an authorized frequency spectrum, a cognitive user keeps silent; if a result of energy detection is a frequency spectrum cavity, secondary detection, namely covariance detection, is needed; and a result of the covariance detection is still that the authorized frequency spectrum is not used, the cognitive user can occupy the authorized frequency spectrum for communication. Thus, advantages of energy detection and covariance detection are effectively integrated; when the channel state is sound, energy detection which is easy to implement is carried out to sense the frequency spectrum; and when the signal to noise ratio is low, secondary detection is carried out by utilizing the high statistic characteristics of covariance detection, and thus, the detection accuracy is improved.

The invention discloses a two-degree-of-freedom spatial parallel mechanism for realizing one-dimensional rotation and one-dimensional movement. Three branched chains are connected between a fixed platform and a movable platform; a first branched chain and a second branched chain have the same connection combination mode and are sequentially connected with universal hinges, movable pairs and spherical pairs from the fixed platform to the movable platform; and a third branched chain is sequentially connected with a rotation pair and a movable pair from the fixed platform to the movable platform. The invention has the advantages that: 1, the mechanism has a small number of moving members and greatly reduces the possibility that the members generate interference in the movement process, so that the phenomena of movement inflexibility caused by manufacturing and assembling errors can be greatly reduced; 2, one-dimensional rotation output and one-dimensional movement output of the movable platform can be realized; and 3, the mechanism has the characteristics of high speed, high efficiency, high rigidity and large working space.

The invention provides a human body target tracking method applicable to a depth image. The human body target tracking method is characterized in that firstly a target template updating method is designed based on threshold judgment by using a human body target depth value; secondly, whether tracking is interfered by an obstacle to enable a tracking frame to jump or not is judged through calculating the distance between a predicted position of a Kalman filter and a mass center position of the current tracking frame, an obstacle shielding method is designed, and interference of an obstacle region for tracking is eliminated; then re-tracking is realized according to a method of human body target detection; and finally, a shielding obstacle removing mechanism is designed based on threshold judgment, a depth camera is enabled to be changed in viewing angle, and shielding of the obstacle region before the viewing angle is changed is removed. The human body target tracking method enables the success rate of human body target tracking in the depth image to be significantly improved.

The invention discloses a folding hydrofoil device of a running system of an evasive crawler-type amphibious vehicle. When the amphibious vehicle sails in the water, the hydrofoil device is driven by a hydraulic cylinder to be unfolded, and a flat plate connected with a folding mechanism is used as a hydrofoil, thereby increasing the upstream area of the amphibious vehicle travelling in the water, improving the lift borne by the amphibious vehicle, enabling the amphibious vehicle to rise from the water as quickly as possible, indirectly reducing the resistance borne by the amphibious vehicle, and improving the cruise speed. When the amphibious vehicle travels on the ground, the hydraulic cylinder retracts, the folding mechanism is retracted under the auxiliary action of a spring, and the flat plate is in an upright state parallel with the side of the vehicle body and can indirectly protect the mobile devices of the amphibious vehicle. Because a connecting rod between the hydraulic cylinder and a beam is eliminated, the evolution mechanism can prevent the mobile devices such as the crawler and the like from generating interference and can meet the requirement of compact assembly of the running devices of the amphibious vehicle.

The invention relates to the field of laser welding, in particular to a non-contact type robot laser welding teaching positioning method. The non-contact type robot laser welding teaching positioningmethod includes the specific steps that firstly, a teaching center is driven by a robot to move and make contact with a calibrated plane to determine an auxiliary laser calibration position point; secondly, a welding laser device is driven by the robot to move and eject out a laser device guiding light path to form a light spot on the auxiliary laser calibration position point, the posture of a space multi-freedom-degree adjusting frame is adjusted, a light spot generated by an auxiliary laser light path ejected out of an auxiliary laser generator on the calibrated plane is made to coincide with the light spot generated by the laser device guiding light path, and the posture of the space multi-freedom-degree adjusting frame is fixed; and thirdly, during welding teaching, the welding laserdevice is adjusted through the robot till the light spots generated by the laser device guiding light path and the auxiliary laser light path on a welding object coincide with each other, and a teaching target position point is acquired. By means of the non-contact type robot laser welding teaching positioning method, the welding trajectory planning efficiency can be improved, and the possibilitythat interference happens in the teaching process is reduced.

A robot with five-freedom mix couple structure is disclosed, which comprises a fixed frame, a first setting adjustable in length, a second setting adjustable in length, a third setting adjustable in length, a positioning head, a movable table. Thereinto, a first hinge is provided in the middle of the fixed frame. The top of the first setting is mounted on the fixed frame via the first hinge and a shift pair that is formed by the first setting and the first hinge, the end of which connects the movable table. A second hinge and a third hinge are provided symmetrically on an end face of the fixed frame, the tops of them are mounted respectively and symmetrically on the end face of the fixed frame, and the ends connect apart with the movable table. The invention can be designed in modularization and used conveniently; the amount of moving components can be reduced, which can avoid the interference among moving components. The end performer can move with five-freedom and holds the performance of high speed, high precision, high rigidity and the trait of broad working space.

The invention discloses a miner positioning method based on a low-power Bluetooth positioning technology. According to the major technical scheme, a very accurate micro positioning module developed through a low-power-consumption Bluetooth technology is adopted. The micro positioning module is encapsulated into a tiny positioner (1), and then the positioner (1) is arranged on a mine channel. The positioner (1) is small in size, and can be arranged densely. More importantly, the energy consumption of the micro positioner (1) adopting low-power-consumption Bluetooth is very low, so that the positioner can work continuously for two years through an ordinary button cell, and the maintainability and durability of the positioner are ensured. Signal sensing devices (2) arranged on a miner safety helmet and a belt buckle can exchange signals with the positioner (1), so that the position of a miner in a mine can be positioned accurately.

The invention provides a two-hybrid yeast for detecting estrogen-like compounds in environmental samples and a preparation method thereof, wherein the yeast contains pGBKT7-ER yeast expression plasmids and pGAD424-GRIP1 yeast expression plasmids, wherein the pGBKT7-ER yeast expression plasmids contain estrogen receptor genes, and the pGAD424-GRIP1 yeast expression plasmids contain estrogen receptor coactivated factor genetic fragments with the sequence of SEQ ID No.2. The invention also provides a bioassay method for detecting the estrogen-like compounds in the environment, which comprises: co-culturing two-hybrid yeast cells and a sample to be detected, adding a reaction liquid of o-nitrobenzene-beta-D-galactopyranoside for reaction, and calculating the concentration of the estrogen-likecompounds according to the detected absorbance value of supernatant at 420 nanometers after the reaction stops. The invention adopts the two-hybrid yeast of recombinant estrogen receptor genes for test, and is more close to the actual action conditions of an endocrine system of a mammal; constructed yeast cell genes have stable character and are easy to culture and screen; the screening process of the whole estrogen-like effect is simple to operate; and the required quantity of the sample is small, and the cost is low.

A method for carrying out synchronization of up link includes receiving request of switching UE (215) from BT1 (205) to BT2(210) by BT1 (205) at BT2 (210), sending UpPTS by BT2 (210) to UE (215) in order to send synchronous component request such as SYNC-UL field to BT2 (210), receiving synchronous component from UE (215) in assigned UpPTS on receiving power and on receiving time by BT2 (210), sending synchronization regulating information of up link to UE(215) by BT2 (210) based on estimation of receiving power and time at receiving synchronous component in UpPTS from UE (215) by BT2 (210).

The invention belongs to the field of wireless communication and discloses time division duplex wireless communication equipment and a receiving and transmitting method thereof. At a switching point of a receiving time slot and a transmitting time slot, the robustness of TDD equipment when receiving and transmitting receiving-transmitting switching point signals can be enhanced and the interference possibility of the tail part of the receiving time slot to the head part of the subsequent transmitting time slot can be reduced through temporarily stopping receiving and transmitting the last oneor a plurality of OFDM symbols of a former time slot of the switching point, thereby improving the transmission performance on the whole. A protection time interval can be determined according to thevariance of a timing advance of a TDD system and the receiving-transmitting switching time of a base station in a TDD mode so as to further calculate the value of N, wherein the N can be also preset.

The invention relates to a color circle rotation detecting device and method for a projection image display device, comprising the following parts of: chroma filter; color circle arranged in the central cylinder part of each delimitation of the chroma filter; optical detector for detecting each index identification as the color circle rotates and outputting detected signal; delay time determining part for determining delay time of the smallest boundary needed for chroma signal conversion to respond the detected signal; and control part for controlling digital micro-reflector imaging chip by reflecting the light inputted to the chip to a light absorber in the period from the index identification detecting time to the delay time. And the invention can accurately detect varying time of the color circle chroma filter, thus able to minimize the boundary of a light shielding region formed at the time of chroma image signal conversion.

The invention discloses an APTEEN routing protocol optimization method based on a genetic algorithm and an optimization device thereof. The optimization method comprises the steps of establishing an energy consumption model of a routing protocol; selecting a cluster head for the first time according to the fitness Iof each node so as to determine the positions of all clusters in the system; removing non-cluster-head nodes covered by other current clusters from the nodes covered by the current cluster, and reselecting cluster heads in the cluster according to the fitness IIof each node; calculating the node degree of each node , and when the node degree of a non-edge node in the energy consumption model is not smaller than a first preset node degree and the node degree of an edge node is not smaller than a second preset node degree, enabling the corresponding node to be dormant, and subtracting the node degree of a neighbor node by 1; and enabling the corresponding non-cluster head nodes to enter the cluster according to the fitness III of each node. According to the invention, the life cycle and the effective coverage area of the network are prolonged; the coverage rate of the system is enhanced; and the transmission energy consumption, the network tail ductility and the transmission of redundant data volume are reduced.

The invention provides a two-hybrid yeast cell for detecting thyrotropic hormone-like / antithyrotropic hormone compounds in a sample and a preparation method thereof, wherein a yeast contains pGBT9-TR yeast expression plasmids and pGAD424-GRIP1 yeast expression plasmids, wherein the pGBT9-TR yeast expression plasmids contain thyroid hormone receptor genes, and the pGAD424-GRIP1 yeast expression plasmids contain thyroid hormone receptor coactivated factor genetic fragments with the sequence of SEQ ID No.2. The invention also provides a bioassay method for detecting the thyrotropic hormone-like / antithyrotropic hormone compounds in the sample. The yeast and the bioassay method greatly improve the sensitivity of the thyrotropic hormone-like / antithyrotropic hormone compounds. The constructed yeast has stable characteristics and is easy to culture and screen; the screening process of the whole thyrotropic hormone-like / antithyrotropic hormone effect is simple to operate; and the required quantity of the sample is small, and the cost is low.

The invention discloses a multi-position self-aligning system with a track movable type belt discharging trolley and a control method thereof and belongs to the field of coal chemical industrial transportation equipment. The multi-position self-aligning system comprises a positioning structure and an electric control system. The positioning structure comprises a movable discharging trolley, a motor reducing gear, proximity switches, a cam, a mechanical brake mechanism, a trolley track, a travelling motor and a dust shield. The electric control system comprises an industrial control computer, a processor, an I / O (input / output) module card and a motor driver. The processor, the I / O module card and the motor driver are sequentially connected. The industrial control computer is connected with the processor through a network. According to the arrangement, a positioning method that rough positioning is combined with fine positioning is adopted to achieve low cost, high accuracy and mounting easiness.

The invention discloses a mechanical decoupling single-hole surgery robot rapid replacement mechanism with a prismatic joint. The mechanism comprises a first joint driving mechanism, a second joint driving mechanism, a third joint driving mechanism, a fourth joint driving mechanism, a fifth joint driving mechanism, a sixth joint driving mechanism, a seventh joint driving mechanism, an eighth jointdriving mechanism, a base shell, a base outer cover, a connector and a locking mechanism. A surgical instrument rapid replacement mechanism is provided with a mechanical decoupling mechanism and completely solves the problem of mutual motion coupling generated when joints of surgical instrument executing mechanisms swing and rotate, the mechanical decoupling mechanism is mounted on the base, structure design of the surgical instrument executing mechanisms can be simplified, and mass production of the surgical instrument executing mechanisms is facilitated. The mechanical decoupling rapid replacement mechanism with the prismatic joint for a single-hole surgery robot has the advantages of convenience in disassembly and assembly, easiness in adjustment, accuracy in positioning, high stiffness, reasonable layout, small size and light weight.