35results about How to "Reduce transmission interference" patented technology

The present invention refers to reversal radar set without control box. It contains at least one master sensor and one or more than one slave sensor; wherein said master sensor including through microprocessor, one gate circuit and one communication circuit and slave sensor for controlling each slave sensor, and collecting each slave sensor detecting result, master sensor also executing obstruction detection, its microprocessor according to itself and slave sensor detected result determining whether actuating alarm circuit, to alarm driver, without using independent control box.

The present invention discloses an electric energy and signal synchronous transmission method based on frequency splitting in an ICPT (Inductively Coupled Power Transfer) system, in the method, a transmission system with a primary side resonance circuit and a secondary side resonance circuit is adopted, a controller in the system selects a time-delay interference parameter according to a digital signal, and forms an output control signal on the reference of a primary side resonance current zero-crossing detection signal for outputting to a drive circuit module, thereby finally achieving the purpose that the system switches between two autonomous stable resonant frequencies according to the digital signal to achieve signal frequency modulation and transmission; in addition, the secondary side resonance circuit is additionally provided with a coupling coil and a signal extraction and recovery module, which can achieve the process of coupling and picking a signal from the secondary side resonance circuit and performing recovery through the signal extraction and recovery module to obtain the digital signal. The electric energy and signal synchronous transmission method of the present invention facilitates high-efficiency transmission of electric energy in the ICPT system while achieving reliable transmission of signals in the case of not changing a topological structure of a main circuit of the ICPT system.

The invention discloses an anti-interference channel switching method suitable for a wireless sensor network. At first, according to IEEE802.11 wireless channel distribution and IEEE802.15.4 wireless channel distribution, wireless sensor network channels based on the IEEE802.15.4 are classified. According to a classification result, the wireless sensor network channels are reconstituted to channel assemblies of different types. Wireless sensor network nodes are classified through a minimum repeated node coordination method to correspond to the channel assemblies of the different types. A time superframe is divided into a plurality of time slots, and each time slot is divided into multiple secondary time slots. The network nodes carry out awakening monitoring on the corresponding time slots through a pseudorandom algorithm or an inquiry dispatch list method. At last, each network node carries out channel switching on the corresponding time slot according to a Latin square algorithm and an initial channel of the network node. According to the method, the performance indexes of end-to-end data average time delay, the data time delay upper limit and time delay jittering are improved.

The invention provides an insulating adhesive film with low dielectric loss and a preparation method and application thereof. The insulating adhesive film comprises the following components in parts by weight: 10-15 parts of cyanate ester resin, 5-10 parts of bismaleimide resin, 80-180 parts of an inorganic filling material, 15-40 parts of epoxy resin, 1-10 parts of thermoplastic resin and 0.5-7 parts of a modifier, the modifier comprises an allyl compound and/or a porous nano material. The insulating adhesive film provided by the invention has relatively low dielectric loss, can improve signal transmission speed and reduce signal transmission interference, has relatively high reliability and relatively long service life, and can be used for printed circuit board and chip packaging and the like.

The invention relates to an advertisement server. The advertisement server comprises a processing module for making a corresponding advertisement plan and advertisement content for a voiceprint audio,and receiving a request message sent by a mobile terminal, wherein the request message is a message for requesting to send the advertisement plan and advertisement content corresponding to the voiceprint audio; and a control module for sending the advertisement plan and the advertisement content to the mobile terminal according to the request message. The invention also provides an advisement player, the mobile terminal, a control method, an audio playing method and an advertisement playing method. The advertisement server, the advisement player, the mobile terminal, the control method, the audio playing method and the advertisement playing method can flexibly make the advertisement playing plan according to the voiceprint audio, and can play the corresponding advertisement in the mobileterminal under the condition of not influencing video playing of the advisement player, thereby improving advisement input effect.

The invention discloses an information processing method. The method is applied to electronic equipment. The electronic equipment can work on a first communication unit and a second communication unit. The method comprises the following steps: judging the first communication unit of the electronic equipment is in a first preset state or not, and generating a first judgment result, wherein the first preset state is used for representing that the first communication unit of the electronic equipment is in a working state; and when the first judgment result represents that the first communication unit of the electronic equipment is in the first preset state, adjusting the first attribute of the second communication unit of the electronic equipment to reduce the interference of the second communication unit on the first communication unit. Meanwhile, the invention discloses the electronic equipment. In a system in which LTE (Long Term Evolution) and WIFI (Wireless Fidelity) coexist, the transmission interference of one party on the other party can be reduced, so that normal transmission of the services of one party is ensured.

The invention belongs to the technical field of wireless communication and discloses a delay tolerant network (DTN) routing strategy under light-weight infantry combat brigade scene and based on a messenger directly under data. The messenger directly under the data comprises a routing sequence and a transmission information sequence, the routing sequence represents a moving sequence and is composed of serial numbers of transmission nodes, and a first number and a last number of the routing sequence are only a source node. The transmission sequence represents information which a transmitted by digital distribution frame (DDF) to each node, when the DDF reaches one target node and after the DDF finishes transmitting the information which a given by a data source to the node, the information is removed from the information sequence, the data source controls the messenger directly under the data, the other nodes can not request the DDF to conduct independent transmission, the DDF moves according to the routing sequence provided by a list, and finally the DDF returns to the data source. The DNT routing strategy of the messenger directly under the data has the advantages of being high in transmission efficiency and little in transmission interference.

The invention provides an elevator running safety monitoring system. The system comprises a monitoring sensor, a data collection terminal, a video monitoring device and a power module; the monitoringsensor is connected with the data collection terminal, the monitoring sensor is used for detecting and monitoring the elevator running state, the data collection terminal is used for storing elevatorrunning state monitoring data formed through treatment of the elevator running state, the video monitoring device is connected with a video displayer, the video monitoring device is used for shootingvideos in the elevator and carrying out storing, the power module supplies power to the monitoring sensor, the data collection terminal and the video monitoring device, the power module comprises an alternating current power supply device and a standby battery, and the power module enables the standby battery to supply power when the alternating current power supply device fails. Physical isolation or optocoupler isolation of the system and an elevator running and control system can be achieved, elevator monitoring data and a video cloud end in a car are shared, the influence on the elevator running and control system is reduced, and flexible and reliable monitoring in multiple aspects and places is facilitated.

The embodiment of the invention provides a random access message processing method and a terminal. The method comprises the following steps: receiving an uplink cancel instruction; and if the resourceindicated by the uplink cancellation instruction is overlapped with the resource of the random access message, cancelling transmission of the random access message. The embodiments of the present invention can reduce transmission interference in a communication system.

The invention relates to an active filter device based on a wireless sensing technology. The active filter device comprises a mutual inductor, a digital signal processor and an inverter, wherein the inverter is connected with the digital signal processor, a wireless sensing sampling converter is installed on the mutual inductor, a wireless receiver is connected to the digital signal processor, the wireless sensing sampling converter comprises an internal acquisition conversion circuit and a wireless sending circuit which are connected, and the wireless sending circuit is connected with a wireless receiver through a wireless network; the wireless sensing sampling converter converts the sampling signal acquired from the mutual inductor to a digital signal and sends out the digital signal through the wireless network, the wireless receiver receives the digital signal and then transmits the digital signal to the digital signal processor, and the digital signal processor controls the output of the inverter according to the received signal. Compared with the prior art, the active filter device disclosed by the invention has the advantages of being low in transmission interference, long in transmission distance, and the like.

The invention relates to the field of communication, in particular to an RJ45 high-speed signal conversion device. The device comprises an RJ45 head and a shell and further comprises a circuit board; the RJ45 head comprises a plastic shell and a metal sheet in contact with an RJ45 socket pin, and part of the circuit board extends into the RJ45 head. The device also comprises a plug, and the plug comprises an outer shell and a wiring core located in the outer shell; a wire breaking groove is formed in the wiring core, a wire breaking connecting piece is arranged in the wire breaking groove, a flexible connecting part is arranged on the side face of the outer shell and corresponds to the wire breaking groove of the wiring core, and a wire pressing block corresponding to the wire breaking groove is arranged on the inner side of the flexible connecting part; and the front end of the wiring core is provided with an open slot for inserting a circuit board. The device adapts to the international general RJ45 standard, is convenient to replace, and breaks through the conventional network transmission limit; a left-right separated wiring mode is adopted to increase the distance between wire cores and reduce transmission interference; a pin structure of a conventional RJ45 interface is removed, and signal crosstalk caused by the pin is avoided; the contact area is larger, and the problem of poor contact caused by oxidation of the contact pin is effectively prevented.

The invention relates to the technical field of communication, provides a time slot adjustment method, electronic equipment and a computer readable storage medium, and aims to solve the problem that interference is easily generated between a PCC and an SCC of the electronic equipment. The method comprises the steps of obtaining frequency band information of a first main carrier PCC connected withthe electronic equipment and frequency band information of a first auxiliary carrier SCC connected with the electronic equipment; obtaining interference information of the frequency band information of the first PCC and the frequency band information of the first SCC from a preset carrier aggregation conflict table; based on the interference information, adjusting a transmission time slot of the electronic equipment in at least one of the first PCC and the first SCC. Due to the fact the adjusted uplink transmission time slot of the electronic equipment in the first PCC and the downlink transmission time slot of the electronic equipment in the first SCC are not overlapped, and/or, the adjusted downlink transmission time slot of the electronic equipment in the first PCC is not overlapped with the uplink transmission time slot of the first SCC, so that the transmission interference between the first PCC and the first SCC of the electronic equipment can be reduced.

The present invention provides a method for a user equipment to send a signal and the user equipment, the method comprising: within the acquired channel detection period, detecting the first interference intensity within the system bandwidth and the second interference of each sub-band within the system bandwidth intensity, and compare the first interference intensity with the first interference threshold value, if the first interference intensity is less than the first interference threshold value, according to the second interference intensity received by each sub-band within the system bandwidth , select N first sub-bands with less interference from the system bandwidth, and send signals on the N first sub-bands, by considering the interference in the entire bandwidth and the interference of each sub-band, in the entire When the system interference is small, transmission collisions are avoided, and sub-bands with low interference are selected for signal transmission, further reducing transmission interference, thereby effectively improving the reliability of data transmission.

The invention relates to the technical field of location degree detection, in particular to a device for measuring the parallelism of a micro electrode plate group, which comprises a device body, a functional base is arranged in the device body, a test cavity for detecting the parallelism is fixedly connected to the functional base, a fluid medium is arranged in the test cavity, and the fluid medium is communicated with the functional base. The arrangement of the test cavity can ensure that visual and complete parallelism detection can be carried out on the to-be-detected micro electrode plate group, specifically, after the to-be-detected micro electrode plate group is placed in the test cavity, the electrode plates are electrified, an electric field is generated immediately, an electric field force is generated under the action of the electric field, and the parallelism of the to-be-detected micro electrode plate group is detected. And the electric field force and the medium liquid jointly form an electric field environment with a driving effect, so that a subsequent detection environment is effectively guaranteed.