45results about How to "Reduce the number of cores" patented technology

The invention relates to a hybrid power underwater robot, which comprises an underwater robot body and an overwater control box, and is characterized in that an output cable socket is arranged on the top of the underwater robot body and is connected with the overwater control box through a shielding cable; the cable is a six-core wire encapsulated by a silica gel pipe; two pairs of dual-stranded signal wires are respectively connected with a signal differential transformation circuit of a control circuit II of the overwater control box and a signal differential transformation circuit of a control circuit I of the underwater robot body; and a pair of power wires is connected with a direct current power supply of the overwater control box and a direct current power supply of the underwater robot body. A video sensor transmits an appearance and a running state image of an underwater detected object to an overwater working station in real time, so that a professional can analyze the data; and various manipulators can perform light-weight catching work.

A control unit using distributed node network for underwater robot features that the CAN network is used as the core of distributed control. It is composed of the master node consisting of computer host and CAN interface, and the CAN network nodes based no single-chip computer and including system state detecting node, device power supply control mode, power supply managing node, motor control node, emergency treating node, data acquisition node, and serial-pore device node.

An underwater robot for culturing and observing the sea cucumbers is composed of a floating system consisting of power unit, control unit comprising control rods and control circuit and display unit composed of video monitor, character superimposer and video recorder-reproducer, and an underwater robot consisting of left, right and vertical propellers, camera, compass, lamp, cable, protecting frame, floating cabin and supporting frame.

The invention discloses a distributed high-density electrical method instrument. The distributed high-density electrical method instrument comprises a plurality of electrode converter cables which are connected in series, wherein each electrode converter cable is provided with a second electrode junction box and a plurality of first electrode junction boxes; the first electrode junction boxes and the second electrode junction box in the same electrode converter cable are connected in parallel; all the electrode converter cables are connected in series; a main unit is connected with a first joint of one of the cables through a connector to achieve communication with each electrode converter cable. Thus, a communication mode in the same electrode converter cable is a broadcast communication mode, so that fewer cable cores are needed, the size of each cable is reduced, and the cables are convenient to construct and transport; under the condition of more electrodes, encoding can be conveniently carried out in a relay communication mode. Through the combination of the broadcast communication mode and the relay communication mode, the problem of time delay caused by single relay communication can be solved, and the speed of electrode switching is increased.

The invention discloses an underwater unmanned ship communication system for achieving communication connection between an underwater unmanned ship body and an above-water base station of an unmanned ship, wherein the above-water base station is provided with a first electric power modem which is in communication connection with a second electric power modem on the unmanned ship body through a cable. A method combining an image transmission and data transmission common link with an electric power carrier technology is adopted by the underwater unmanned ship communication system disclosed by the invention, so that a man-machine interaction device can watch videos acquired by the unmanned ship while the unmanned ship is controlled and managed, and communication signals can be transmitted for a longer distance; and meanwhile, by adopting the method, the number of cable cores between the underwater unmanned ship body and the above-water base station is reduced to the utmost extent, so that the total weight of cables is reduced, and the maneuverability of the unmanned ship is improved.

The invention provides a medical crane tower system. The medical crane tower system comprises a movable component, an executive component and a bus, wherein the movable component comprises a keystroke control module; the keystroke control module comprises braking system control keys and crane tower lifting control keys; the executive component comprises an output control part; the output control part is connected with a concentration line power source, a crane tower motor and a braking system respectively; the movable component and the executive component are both connected to the bus; the bus is used for transmitting power source supply; the bus is further used for transmitting instructions from the movable component to the executive component. The medical crane tower system provided by the invention can achieve the following benefits: stepless regulation of the height direction can be realized; the lengths of cables are not required to be changed; core number of the cables is reduced; the circuit design is optimized; the installation is easy; the maintenance is easy; function integration and function extension are facilitated; the reliability is improved.

The invention provides node devices for an LED (light-emitting diode) light control network and an LED light network topology. The node devices and the network topology have the following beneficial effects: each node can automatically monitor the respective input / output state and has a signal bypassing function; once signals interrupt abnormally, bypass devices are immediately started, the nodes are separated from the network and the signals are directly connected to the following stage; because of the chained network topology, each node only communicates with the two adjacent nodes, so the signal drive capacity is greatly improved and longer distances and more nodes can be driven; and the quantity of the needed cable cores is small and the data traffic is large, so the automatic address allocation function can be achieved, thus greatly reducing the workload of construction.

The invention relates to an isolation type DC / DC power converter and is to provide a combination converter capable of realizing output tight adjustment. A primary side winding of a transformer is formed by a first winding and an auxiliary winding, wherein the first winding is connected with the output of an inverter circuit, and the auxiliary winding is connected to an un-isolated DC-DC converting circuit through a second rectifier circuit; an output capacitor of the un-isolated DC-DC converting circuit is connected in series with an input DC voltage to serve as DC input of the inverter circuit; a DC output voltage is sampled on a resistor connected in parallel to the output capacitor and sent to an isolation feedback circuit; and the isolation feedback circuit sends a duty ratio regulation signal to the un-isolated DC-DC converting circuit to realize tight adjustment of the output voltage. Magnetic core utilization rate of the transformer can be maximized, and efficiency and power density are improved; stability and regulation of the output voltage can be realized without changing switching frequency of a resonance circuit; only one main isolation transformer is needed in the topology, thereby reducing magnetic core quantity; and the rectifier circuit at the secondary side of the transformer can adopt the synchronous rectification technology easier.

The invention relates to the technical field of no synchronous lines, in particular to a light curtain detection method and device without special synchronous lines, and the method comprises the steps: controlling a TX light curtain to emit a light source through employing a special lighting sequence and a lighting period, and completing one round of lighting; in the lighting process, through theRX, performing receiving synchronization; if synchronization fails, the RX receiving and selecting periodic continuous sampling of a head lamp at the first time; when signals exist for N times continuously, starting a timer, and after entering the timer, performing ADC data acquisition and comparison; if there is no signal for the first time and taillight signal collection for the second time succeeds, judging that synchronization succeeds, or otherwise, judging that synchronization fails in any other mode; if synchronization succeeds, calculating the state according to the collected signals,if synchronization fails and timeout occurs, directly judging that the state is shielded; and finally, outputting a result according to the light curtain state, and after output, the light curtain repeating the above steps. The method is simple, the number of cable cores and an anti-interference and protection circuit of the synchronous line can be reduced, the cost is reduced, and the performanceis consistent with that of a light curtain of the synchronous line.

The invention relates to a hydraulic cylinder, in particular to a hydraulic cylinder with a built-in stroke detecting device. The hydraulic cylinder comprises a cylinder body, a ceramic piston rod, a lower end cover and a sensor. A stroke detecting section is arranged on the ceramic piston rod and is divided into a start section, a stroke section and a finish section, grooves with equal widths are equidistantly formed in the stroke section, the width of the start section is not smaller than two times the width of each groove, the sensor is close to the surface of the stroke detecting section or is in contact with the surface of the stroke detecting section, and the detection direction of the sensor directly faces the center of the ceramic piston rod and is parallel to the axis of the ceramic piston rod. The hydraulic cylinder has the advantages that accumulated errors due to interference during running can be eliminated; the quantity of cable cores of the sensor is reduced, the sensor is only provided with a positive power core, a negative power core and a signal core, the cable usage cost is reduced as compared with an existing sensor with a six-core cable, the size of the sensor is reduced and is smaller than one-third of that of a conventional sensor of a ceramic piston rod, and output signals are analog signals and accordingly are good in universality.

A high-speed shielded flat cable is provided with a flat cable configured by connecting at least one signal line formed by covering the outer periphery of a conductor with an outer peripheral insulator and plural ground lines each formed by covering the outer periphery of a conductor with a conductive resin in a plane, and shield members closely attached to the top and bottom of the flat cable. The ground lines are disposed on both sides in the width direction of the flat cable and electrically connected to the upper and lower shield members. The flat cable is vertically and laterally insulated from external noise since the ground lines on both sides are electrically connected to the upper and lower shield members, whereby the flat cable is insulated by only the shield members without using a sheathe.

The invention discloses a radar signal processor external communication control system. The radar signal processor external communication control system comprises an FPGA, which comprises a transceiving module used for interface management and transceiving of serial communication; a DSP, which is connected with the FPGA, and is used for control of transceiving time sequences, processing of communication protocol content, and configuration of communication parameters; and a connector, which is in a bidirectional connection with the FPGA. The radar signal processor external communication control system is advantageous in that the internal resources of the FPGA and the DSP are fully used, and a special 422 communication chip is not required, and corresponding peripheral circuit design is reduced, and therefore the communication control of the signal processor over other components of the radar is realized stably, and power consumption of a single device and device costs are reduced; parameter configuration is realized, and the requirements of the system on the diverse working modes are satisfied.

The invention relates to a high-altitude wind power generation device in the field of wind power generation. The wind power generation device comprises three parts including a high-altitude suspensiondevice, a traction cable and a ground recycling system. The high-altitude suspension device is a kite with multiple rotors, the high-altitude suspension device can be lifted up and down through the multiple rotors, and the multiple rotors can generate electricity. In the process of power generation at the high altitude, wind power can be generated by a sail, empennage windward area adjusting andswitching of the multiple rotors from the power generating state to the power consumption state to maintain the relative position of the suspension device at the high altitude, so that the high-altitude suspension device conducts suspension power generation within a certain space range. During multi-unit cluster distributed power generation, the high-altitude space utilization rate is improved, and it is ensured that the problems of position interference and cable entanglement cannot be caused when all units operate in coordination. In the manner, wind power generation is not limited by regions, and large-scale application can be achieved.

The invention discloses a contact type elevator power transmission system. The system comprises a storage battery arranged on a car and used for supplying power for an electric load in the car, and the system further comprises a plurality of first contact plates on an elevator shaft wall and a second contact plate on the car of the elevator, wherein the plurality of first contact plates, through an electronic switch controlled by a door open / close in place signal of each floor, are connected with a rectification circuit electrically connected with a commercial power, the second contact plate is connected with the storage battery, and a contact of the second contact plate is electrically connected with the contacts of the first contact plates. The contact type elevator power transmission system can be electrically connected with the second contact plate through the first contact plates by adopting the electronic switch controlled by the door open / close in place signal of each floor when the door of the elevator opens, so that the commercial power charges the storage battery on the car, and the storage battery supplies power for the electric load in the car, in this way, the number of cores of wires in a traveling cable of the elevator is reduced, and simultaneously, interference of the electromagnetic field generated by a power line to the control signals in the traveling cable is avoided.

The invention provides a digital trusted instrument with a CAN interface. An external mechanical rotation angle variation quantity is transferred to a second automatic angle adjusting machine, and a fine channel angle digital quantity is obtained through an SDC module. The external mechanical rotation angle variation quantity is transferred to a first automatic angle adjusting machine through a speed reducer, and a coarse channel angle digital quantity is obtained through an SDC module. The coarse channel angle digital quantity and the fine channel angle digital quantity are subjected to coarse and fine combined operation of a single chip microcomputer, and a 17-bit trusted instrument position digital quantity is obtained. The trusted instrument position digital quantity is transmitted to a servo controller by a CAN bus driver module through a CAN data bus. A power supply module supplies power to the SDC modules, the single chip microcomputer and the CAN bus driver module. According to the digital trusted instrument, the direct influence on precision by excitation power supply interference is small, the conversion precision is ensured, and the calculation workload of a servo control computer is reduced.

The invention discloses a variable-current power transmission system of a tidal current generator unit, and a working method thereof; the variable-current power transmission system comprises a plurality of water-turbine generator sets which are respectively and sequentially connected with a corresponding electric reactor and a three-phase full-controlled rectifier; an output end of each three-phase full-controlled rectifier is respectively connected with a storage battery and a three-phase full-controlled inverter; a back-to-back structure is formed by each three-phase full-controlled rectifier and each three-phase full-controlled inverter; and an output end of each three-phase full-controlled inverter is connected with an electrical load by an inductance filter and an alternating-current transformer. The three-phase controlled rectifier adopts a three-phase full-controlled space vector pulse width modulation (SVPWM) rectifier, and the invention has the advantages of reducing the number of devices on a carrier platform, simplifying the system and reducing the consumption.

The invention discloses a radar signal processor external communication control system. The radar signal processor external communication control system comprises an FPGA, which comprises a transceiving module used for interface management and transceiving of serial communication; a DSP, which is connected with the FPGA, and is used for control of transceiving time sequences, processing of communication protocol content, and configuration of communication parameters; and a connector, which is in a bidirectional connection with the FPGA. The radar signal processor external communication control system is advantageous in that the internal resources of the FPGA and the DSP are fully used, and a special 422 communication chip is not required, and corresponding peripheral circuit design is reduced, and therefore the communication control of the signal processor over other components of the radar is realized stably, and power consumption of a single device and device costs are reduced; parameter configuration is realized, and the requirements of the system on the diverse working modes are satisfied.

The invention relates to a medical tower crane system which comprises a movable assembly, an execution assembly and buses. The movable assembly comprises a key control module, the key control module comprises brake system control keys and tower crane ascending and descending control keys, the execution assembly comprises a main control board module, a driving board module, a bus power source, a tower crane motor and a brake system, the main control module is connected to the driving board module, the bus power source and the brake system, the driving board module is connected to the tower crane motor, the movable assembly and the execution assembly are respectively connected to the buses, the buses are used for transmitting power supply and instructions, and the tower crane ascending and descending control keys include a tower crane ascending key and a tower crane descending key which are double-step keys. The medical tower crane system has the technical advantages that the medical tower crane system can be steplessly adjusted in the height direction without change of the lengths of cables; the number of cores of the cables can be reduced; circuit designs can be optimized, and the medical tower crane system is easy to mount and maintain; function integration and extension are facilitated; requirements of medical equipment under single-failure conditions can be met; the reliability of the medical tower crane system can be improved.

The present invention discloses an adaptive radiation dose calculation simulation method for an irregular shaped radioactive source, and belongs to the field of nuclear facility decommissioning simulation. The method comprises: establishing a three-dimensional geometric model of an object in three-dimensional modeling software and deriving the three-dimensional geometric model as initial input; reading a three-dimensional model file of the object, and acquiring a mesh model of the object; performing spatial division; performing approximation on the object model by using a cuboid; taking the overlapping part of the cuboid of the surface of the object and the object to generate an adaptive point nucleus; segmenting the cuboid inside the object to generate an adaptive point nucleus; and usingthe point nucleus method to perform gamma radiation dose calculation. According to the technical scheme of the present invention, the adaptive point nucleus technology is used to improve the calculation efficiency, requirements of the radiation dose calculation time and precision can be satisfied by adjusting the distribution density of the point nucleus according to the position of the detectionpoint, and geometry with any shape can be processed, so that dose evaluation modeling and calculation processes are more flexible and efficient.

The invention relates to the technical field of aerospace, in particular to a multistage rocket separation electric connector insertion state detection device and a rocket thereof. According to the multi-stage rocket separation electric connector insertion state detection device, no matter when the separation electric connector in each stage is used for ground testing or flying in the air, only asignal line led out from a negative bus is connected with the intelligent detection combination of the stage, and the transmission of an insertion state signal is realized. Therefore, the number of cores used for detecting the plugging state of the separated electric connector of each stage is one, the occupied number of cores is saved by about 75% compared with a traditional detection method, thesize of the separated electric connector is reduced, the connection complexity and weight of a cable network are reduced, and the carrying capacity of a rocket is improved.

The invention discloses an active data transmission system for a seismic exploration system. The seismic exploration system is provided with multiple collection nodes connected to a transmission line;the active data transmission system is used for supplying power for various collection nodes of the seismic exploration system, and transmitting data among various nodes; the active transmission system comprises a power supply end and a power receiving end; the power supply end is configured on the former collection node, and the power receiving end is configured on the next collection node, andthe power supply end and the power receiving end have the power module. The active data transmission system for the seismic exploration system performs multiplexing transmission by adopting a way of coupling the power supply and the data, the weight of the data transmission line and the cable core number are reduced; the cable of the seismic exploration system can be saved after the system is saved, the manpower and the material resource are saved, and the system brings great convenience for the field construction.

The invention relates to a mini-size underwater observing robot, which comprises an underwater robot body and an above-water control box, wherein, two sides of an electronic cabin on the underwater robot body are horizontally provided with a left propeller, a right propeller and a lamp; a middle part on the electronic cabin is vertically provided with a vertical propeller; a bracket and a manipulator are arranged together with a lower part of the electronic cabin, the interior of which is provided with a compass, a temperature gauge, a depth gauge and a control circuit board; a front part on the electronic cabin is provided with a camera with variable focus, a camera pan and tilt and a lamp; a back part on the electronic cabin is provided with a camera with fixed focus; video images are transferred to a display on the above-water control box through shielded cable; the above-water control box consists of a control panel, a control circuit, a liquid crystal display and a chassis body. The invention transfers the shapes and the movement state of observed objects under water to the above-water control box through a video sensor, so the repair personnel can analyze the images; besides, the arranged manipulator can carry out grabbing work with light weight.

The invention discloses an adaptive radiation dose calculation and simulation method for an irregular-shaped radiation source, which belongs to the field of nuclear facility decommissioning simulation. The invention includes establishing a three-dimensional geometric model of an object in three-dimensional modeling software and exporting it as an initial input; reading the three-dimensional model file of the object to obtain a grid model of the object; space division; using a cuboid to approximate the object model; An adaptive point kernel is generated from the overlapping part with the object; an adaptive point kernel is generated from the cuboid segmentation inside the object; the point kernel method is used to calculate the gamma radiation dose. The invention adopts the self-adaptive point kernel technology to improve the calculation efficiency, and can adjust the distribution density of the point kernel according to the position of the detection point to meet the requirements of radiation dose calculation time and accuracy, and can process any shape geometry, so that the modeling of the dose evaluation can be achieved. , The calculation process is more flexible and efficient.

A mixed type stepping motor can reduce the number of rotor cores when a multi-layer rotor is mounted, and raise assembly efficiency and motor characteristics. The mixed type stepping motor comprises a first rotor core (4) which is arrange around a rotor shaft (1) and provided with a first rotor polar tooth (4a) on the outer circumference surface; a first rotor magnet (6) arranged concentric with the rotor shaft (1) near the first rotor polar tooth (4a); and a second rotor polar tooth (5a) which is laminated across a magnetic body (7) at two sides of the axial direction of the first rotor core (4), arranged around the rotor shaft (1), and provided with a second rotor polar tooth on the outer circumference surface, wherein an axial direction lamination thickness of the first rotor core (4) is bigger than that of the second rotor core (5), a plurality of magnetic circuits are formed simultaneously in the axial direction, and among the magnetic circuits, magnetic flows of the first rotor magnet (6) starts from the first rotor polar tooth (4a), passes through an opposed stator polar tooth (8a), the second rotor core (5) at two sides of the axial direction, and the magnetic body (7), and returns back to the first rotor magnet (6).

The distributive underwater robot control system has RS-485 network as distributive control kernel and consists of computer system unit nodes and RS-485 network nodes. The computer system unit nodes to disperse the task to the network nodes include computer system unit and RS-232 / RS-485 converter. The RS-485 network nodes with monochip computer as kernel includes mainly state detecting nodes, equipment power supply controlling nodes, power supply controlling nodes, motor controlling nodes, emergency treating nodes, datan acquiring nodes and serial port device nodes. The network nodes are for the tasks of sensor datan acquisition and processing, device control, motor control, fault detection, water leakage detection and emergency treatment. All the nodes are connected together via RS-485 interfaces to constitute RS-485 network; and the software consists of computer system unit programs and monochip computer programs.

The invention relates to a medical pendant system. The medical pendant system includes movable parts, executive parts and a bus. The movable parts include a button control module, which includes brake system control buttons and pendant lifting control buttons. The executive parts include a main control board module, a drive board module, and a bus power supply. , Pendant motor and brake system, the main control board module is connected to the drive board module, bus power supply and brake system, the drive board module is connected to the pendant motor, the movable parts and executive parts are respectively connected to the bus, and the bus is used to transmit power supply and commands, the pendant lifting control buttons include the pendant up button and the pendant down button, both of which are two-step buttons. The invention can have the following beneficial technical effects: the height direction can be adjusted steplessly without changing the cable length; the number of cable cores is reduced; the circuit design is optimized, easy to install and maintain; it is convenient for function integration and expansion; Failure condition requirements; improved reliability.

The invention relates to the technical field of elevator communication, and discloses an elevator communication method based on a low-delay wireless network, a storage medium and a system thereof. The method includes: setting a first wireless module on the car top that is data-connected to a car top control board, The second wireless module is set in the control cabinet, and the first wireless module and the second wireless module are both wirelessly connected to the same cloud server; the first wireless module collects the status data in the car top control panel, and sends the status data to the cloud server; The cloud server sends the status data to the second wireless module, the control cabinet receives the status data through the second wireless module, and sends control commands to the cloud server through the second wireless module; the cloud server sends control commands to the car top control board through the first wireless module command, the car top control board receives and executes the control command; there is no need for expensive elevator communication cables, and when the accompanying cable fails to communicate, only the wireless module needs to be replaced, and maintenance is also convenient.

The present invention relates to the field of no-synchronization line technology, and in particular to a light curtain detection method and equipment without a dedicated synchronous line. The present invention uses a special lighting sequence and a lighting cycle to control the emission light source of the TX light curtain to complete a round of lighting; during the lighting process , RX performs reception synchronization; if it is not synchronized, the RX receives and selects the cycle of the headlight for continuous sampling at the first time; when there are signals continuously for N times, the timer is started, and after entering the timer, ADC data collection is performed and compared; If there is no signal for the first time and the tail light signal is successfully collected for the second time, the synchronization is successful; otherwise, the synchronization fails in any other way; if the synchronization is successful, the status is calculated according to the collected signal. If the synchronization fails and times out, it is directly judged as the blocked state, and finally Output the result according to the state of the light curtain; after output, the light curtain repeats the above steps. The method of the invention is simple, can reduce the number of cable cores and the anti-interference and protection circuit of the synchronous line, reduces the cost, and has the same performance as the light curtain of the synchronous line.