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5153results about How to "Reduce design cost" patented technology

Efficient automatic dust-removing and intelligent ventilation system and automatic dust-removing method

The invention relates to the ventilation system field, in particular to an efficient automatic dust-removing and intelligent ventilation system and an automatic dust-removing method. The system comprises an intelligent energy-saving ventilation system housing component and a fan, wherein the intelligent energy-saving ventilation system housing component comprises a dual duct, a dust-discharging duct, a throttle actuating mechanism, a dust screen, a temperature and humidity sensor and a distributed pressure sensor, wherein the temperature and humidity sensor and the distributed pressure sensor are connected with a control system, and the control system drives the throttle actuating mechanism to realize time-sharing and smooth transition of the dual duct and the dust-discharging duct. The beneficial effects of the invention are as follows: the fans of the air feeder unit can be used for several purposes such as air supply and dust removing, thus reducing the equipment cost; the self-cleaning of the filtering screen can be realized, thus prolonging the service life of the filtering screen, reducing replacement frequency and lowering maintenance cost; and by turning on/off the automatic dust-removing and intelligent ventilation system, the normal operation of the devices in an equipment room can be ensured.
Owner:SHENZHEN ZHONGXING SINDI TECH CO LTD

High-power seeker tile type active phased array antenna

The invention discloses a high-power seeker tile type active phased array antenna, and aims at providing an active phased array antenna which is small in size and low in weight and can reliably work with no requirement for temperature compensation. The high-power seeker tile type active phased array antenna is realized by the following scheme that E-type patches act as radiation array elements of a microstrip antenna array which can be extended according to integral multiples of 4x4 array scale, rectangular grid arrays are distributed on an antenna dielectric substrate, and a tile type TR component is closely connected with a heat exchanger integrally; and the microstrip antenna array is connected with the high-power transmit-receive chips of the tile type TR component to form transmit-receive channels through integration, every four high-power transmit-receive chips are connected with one TR multifunctional chip simultaneously, four TR multifunctional chips form one 4x4 subarray circuit module together, and then subsequent connection with a power distribution synthesis network is performed. Power supply, high-power pulse power modulation and amplitude-phase code control of a DC power supply and wave beam control signals are realized via a power supply modulation distributor so that directional diagram scanning of the high-power tile type active phased array antenna can be realized.
Owner:10TH RES INST OF CETC

General signal processing board card based on multi-core DSP (digital signal processor)

The invention discloses a general signal processing board card based on a multi-core DSP (digital signal processor). An FPGA (field programmable gate array) serves as a master control core, and two multi-core DSP chips are connected through a high-speed serial bus and supportable to SRIO (serial rapid input / output) and PCIE (peripheral component interconnect express) protocols. Each DSP is connected with an expandable external memory and a gigabit Ethernet interface, and the DSPs are connected mutually through the high-speed serial bus and supportable to Hyperlink, SRIO and PCIE protocols. The FPGA and a VPX connector are mutually connected through a gigabit transceiver and supportable to SRIO, PCIE and Ethernet protocols. Mounting positions of an external memory chip, a DSP chip and an FPGA chip on a printed board of the general signal processing board card are compatible positions allowing placement of other chips in the series respectively and accord with 6U standards in size. The problems of poor universality, small data throughput, low storing rate and low processing speed of existing signal processing board cards are solved, and the general signal processing board card has the advantages of quickness in processing, high storing rate, large data throughput and high universality and can be widely applied to fields of communication, radar, guided missiles, remote sensing, image processing and the like.
Owner:XIDIAN UNIV

Charging and communication collinear system and earphone product

The invention discloses a charging and communication collinear system and an earphone product. The charging and communication collinear system comprises a charging device and an electric product. Thecharging device comprises a main charging interface, a power output circuit and a main controller. The power output circuit is connected with the positive electrode of the main charging interface through a first switch. The main controller is connected with the positive electrode of the main charging interface through a second switch. The electric product comprises a slave charging interface, a charging circuit and a slave controller. The charging circuit is connected with the positive electrode of the slave charging interface through a third switch, and is used for receiving a charging powersource outputted by the charging device and charging a battery in the electric product. The slave controller is connected with the positive electrode of the slave charging interface through a fourth switch. According to the invention, the dual functions of transmitting a charging current and transmitting a communication signal on a single connection line are achieved. The technology is applied tothe earphone product. In this way, the charging function and the communication function of an earphone can be realized by a charging box. Meanwhile, the number of contacts between the earphone and thecharging box can be reduced.
Owner:GEER TECH CO LTD

Board system and FPGA (Field Programmable Logic Array) online update method of communication interface cards

The invention relates to the technical field of communication and discloses a board system, aiming at solving the problems that an FPGA (Field Programmable Logic Array) online update mode is inapplicable for the FPGA online update of a separated type system of a motherboard plus multiple communication interface cards in the prior art, and the update mode is high in cost and low in reliability. The system comprises a motherboard and n interface cards, wherein the motherboard comprises a CPU (Center Processing Unit), a CPLD (Complex Programmable Logic Device) unit and n slot positions; each slot position is connected with the CPLD unit; the CPLD unit is connected with the CPU; the n interface cards are connected onto the n slot positions in a plugging and one-to-one correspondence way through n connectors so as to realize signal interconnection with the motherboard; as an integer, n is greater than or equal to 2; the CPLD unit comprises a gating module and a counting module; the interface cards comprise an FPGA unit, a selector switch, a main flash module and a slave flash module; the main flash module and the slave flash module are connected with the FPGA unit through the selector switch. In addition, the invention also discloses an FPGA online update method of the communication interface cards, which is applicable for the separated type system of the motherboard plus the multiple interface cards.
Owner:MAIPU COMM TECH CO LTD

Three-dimensional design method and system for nuclear powder support hanger

InactiveCN102346797AGet rid of the shackles of technologyKeep 3D Models ConsistentSpecial data processing applicationsEngineeringPart type
The invention discloses a three-dimensional design method and system for a nuclear powder support hanger. The three-dimensional design method and system are operated under a PDMS (Plant Design Management System); a nuclear powder support hanger database consisting of a support hanger composition table is hung below a main menu of the PDMS system; the support hanger composition table comprises support hanger types, type description and inner codes; the inner codes are formed according to part types and the part shut sequence forming the support hanger; each support hanger type is in respective one-to-one correspondence to a style picture and the inner code of the support hanger; the design method comprises the following steps of: establishing the support hanger composition table at a first phase according to the type code, the type description and the inner code; generating a preliminary mode of the support hanger at a second phase according to the support hanger description and a corresponding picture; adding a connecting point and a rooting point by setting parameters; and finally, generating a corresponding a support hanger three-dimensional mode, wherein the first phase and the second phase can be continuously and alternatively carried out, or a novel type support hanger in the support hanger composition table during execution at the second phase can be added and modified.
Owner:BEIJING WEIXIHUA HIGH TECH

Method for realizing flexible cable assembling model in virtual assembling environment

ActiveCN101799845AAccurate modelGood interactivitySpecial data processing applicationsCable designInformation architecture
The invention discloses a method for realizing a flexible cable assembling model in a virtual assembling environment according to the application requirements of cable assembling process design and verification in the field of virtual manufacturing. In the method, the cable assembling model is divided into a cable branch model and an electric connector model and the method is implemented by the steps of CAD design information read, model information architecture in the virtual environment, real-time assembling operation and the like, wherein the cable branch model can realize real-time flexible deformation according to a loaded mass spring system and perform clamping assembling operation by setting the attribute of the mass point; and the electric connector model can realize the cable assembling operation such as plugging and the like according to a restraining model. The method adopts the design information of the cable and overcomes the defect that the conventional cable assembling process design and verification depend on a physical model heavily on the premise of not changing cable design parameters. The method has the characteristics of obviously improving the efficiency of product assembling design and reducing design cost, along with accurate model, good intuitive performance and interactivity.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS +1

Ball joint locking method and device

ActiveCN103610555AAchieve instant multi-point lockAchieve isolationJointsOperating tablesEngineeringSacroiliac joint
The invention provides a ball joint locking method and a locking device designed according to the method. A ball head of a ball joint is sleeved with a connecting sleeve which can be movably locked with the ball head or be in a release state with the ball head. An abutting assembly connected with a hydraulic system is arranged in a position corresponding to a matching position of the ball head and the connecting sleeve at locking time. Under the action of pressure oil provided by the hydraulic system, the abutting assembly is forced to instantly press the outer surface of the ball head and enables the ball head to abut against the position matched with the connecting sleeve at the same time, so that the abutting assembly and the connecting sleeve lock the ball head in a multipoint mode. When pressure is released, the abutting assembly and the connecting sleeve can restore to original positions automatically, so that the locking state and the release state of the ball joint can be switched quickly. According to the ball joint locking method and the locking device, the characteristics that the hydraulic system is small in inertia and quick in response are fully utilized, so that that the device have the advantages of being simple in structure, reliable in locking, and good in effect, and can ensure rigid connection and bear certain load moment at the same time. Moreover, locking devices can be connected in series through the same oil path for utilization in one product.
Owner:SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI

Wireless sensor network-based monitoring and early warning method for running state of mine ventilator

The invention relates to a wireless sensor network-based monitoring and early warning method for a running state of a mine ventilator. Accurate online monitoring and early warning are realized through collecting the vibration, the temperature and the negative pressure information of the ventilator. A monitoring and early warning system comprises a monitoring computer, a Zigbee coordinator node, at least six sensor nodes, at least four temperature sensors, a negative pressure sensor and two vibration sensors, wherein the coordinator node and the sensor nodes are built into a wireless sensor network in a self-organization way; the monitoring computer and the coordinator node are connected through a serial interface line; the four temperature sensors are respectively fixed on bearing bushes at both sides of a motor and a fan; the two vibration sensors are horizontally and vertically arranged on a fan shell; and the negative pressure sensor is connected onto a negative pressure measuring pipe on the fan. According to the wireless sensor network-based monitoring and early warning method for the running state of the mine ventilator, the early warning is more timely and diagnosis is more accurate by adopting integrated diagnosis method of built-in countermeasure base and relative threshold early warning and fuzzy theory.
Owner:BEIJING UNIV OF TECH
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