37results about How to "Reduce leads" patented technology

The invention provides a communication method for a programmable logic controller and an extension module. A communication protocol state machine controller and an I/O refresh state machine controller recognize periodic I/O refresh data frames and nonperiodic state data frames, can instantly send notification to the I/O refresh state machine controller to require the I/O refresh state machine controller to respond to the received state data frames when recognizing the sent nonperiodic state data frames, and can automatically respond and perform data read-write when recognizing the sent I/O refresh data frames so as to lighten the load of the I/O refresh state machine controller and improve communication speed and efficiency; meanwhile, the communication method adopts serial communication lines for connection, has few lead wires and low cost, saves capital goods resource and achieves the aim of the invention.

The invention discloses a pipe cleaning robot, which consists of robot host and robot control box, wherein the control box controls cleaning working of the robot host; the robot host contains car body, cam, wheels at two side of the car body, elevating arm on the car body, hair brush on the elevating arm, luminous tube, first motor to anchor the wheel to move forwards and backwards, turn left and right, second motor to control the up-and-down movement of the elevating arm, wherein the hair brush is pneumatically rotary hair brush, which provides dynamics for the compressed air. The invention avoids block for hair brush, which doesn't damage equipment easily with low cost.

The invention relates to a high-power self-cooled thyristor valve and a vehicle for assembling the same. The invention is characterized in that: a single-phase thyristor valve body comprises two thyristor valve string, and insulating tension rods, flanges, radiating fins, high-potential trigger plates, energy-taking magnetic rings, high-voltage energy-transmitting cables and a plurality of retaining nuts which are symmetrically distributed; every two thyristors are in positive and negative parallel connection with each other through flexible cables on the radiating fins to form a thyristor valve unit; a plurality of thyristor valve units form a thyristor valve string through parallel connection and upright stacking; radiating fins are pressed between each layer of thyristor valve units at intervals; the two thyristor valve strings form a single-phase thyristor valve through positive and negative parallel connection; both ends of the insulating tension rods are respectively fastened between an upper flange and a lower flange through the retaining nuts; the high-voltage energy-transmitting cables are connected to the inside of the thyristor valve body through the energy-taking magnetic rings of the high-potential trigger plates; the single-phase thyristor valve body inputs and outputs current through two moving contacts; the two moving contacts and the thyristor valve body are fixed together through copper bars which are fixed on the upper end and the lower end of the insulating tension rods through the flanges; and annealed copper sheets which are communicated with the radiating fins are arranged on the copper bars.

PROBLEM TO BE SOLVED: To obtain a device and a method for detecting an unbalance of a washing machine which reduce the number of components, simplify the structure and moreover enable stop of the rotation of a washing and dewatering tub corresponding to the amount of the unbalance, only when it is needed.SOLUTION: The washing and dewatering tub provided with a rotating blade at the bottom is disposed rotatably in a water tank 3 suspended and supported swingably in an outer box 1. In the washing machine having this constitution, the device for detecting the unbalance is disposed between the outer box 1 and the water tank 3 and fitted to a unit case 16 of a power supply unit disposed in the outer box 1.

The disclosed single-coil measurement sensor for position of control rod based on self-induction principle in reactor measuring and controlling technique comprises a measurement mandrel space arranged with the magnetic inductive material and non-inductive material, a group of independent self-inductive measuring coils, a generating and amplifying circuit for pumping signal for coils, and the measurement circuit for inductive voltage in coil. This invention has small volume and stable running with convenient maintenance to provide security guarantee for reactor.

The invention provides an enhanced FLASH chip and a method for encapsulating a chip, and aims to solve the problems of high design complexity, long design cycle and high design cost. The enhanced FLASH chip comprises a FLASH and an RPMC (Replay Protection Monotonic Counter) which are encapsulated together, wherein the FLASH and the RPMC comprise an independent controller respectively; the same IO (Input-Output) pins in the FLASH and the RPMC are connected with each other, and are connected to the same external sharing pin of the chip; the insides of the FLASH and the RPMC are in no need of connection with each other; an external instruction is transmitted to the FLASH and the RPMC through the external sharing pin of the chip; and the controllers of the FLASH and the RPMC judge whether the external instruction is executed or not respectively. According to the enhanced FLASH chip and the method for encapsulating the chip, the encapsulating area and the design cost are reduced, the design complexity of the chip is low, and the design cycle is short.

The invention provides a single-stage coil cable tension sensor based on a self-inductance principle and a test method thereof, and belongs to the technical field of structural health monitoring. The single-stage coil cable tension sensor comprises a magnetic conductive steel cable test piece, a single-stage coil cable tension sensor for cable tension measurement, a coil skeleton for winding the sensor, a loading device, a test piece fixing and clamping device, a generation circuit for generating a self-inductance coil sensor excitation signal, an amplification circuit, a filtering circuit, an effective value circuit and a digital analog conversion circuit and other circuits for analyzing and processing each signal. The steel cable test piece magnetic permeability variance is used as the intermediate quantity, and a linear relation between the cable tension value and the self-inductance variance is established so that the cable tension value can be measured. The single-stage coil cable tension sensor based on a self-inductance principle and the test method thereof can solve the problems that a traditional magnetic flux cable tension sensor has more coils and is large in volume, and is low in anti-interference capability, and have the advantages of being simple in manufacturing process, being small in volume, and being able to improve the signal to noise ratio of the sensor.

The invention discloses a three-dimensional force flexible touch sensor with high tangential angular resolution. The sensor is formed by superposing a top layer, a middle layer and a bottom layer from top to bottom. The top layer electrode, the sensitive material and the bottom layer electrode form three common-ground detection circuits, the positive pressure, the tangential force and the tangential angle borne by the sensor can be detected at the same time, then the positive pressure, the tangential force and the tangential angle can be converted into three-dimensional force, and the tangential force and the tangential angle can be recognized through different characteristics of a voltage signal. According to the three-dimensional force flexible tactile sensor, the sensor has a three-dimensional force detection function by utilizing the conducting material with regionalization and slope design, and compared with a traditional four-unit distribution combined three-dimensional force flexible tactile sensor, the sensor needs fewer electrode leads, the overall structure is more compact, and tangential angle detection has higher resolution.

A switching device of a transformer comprises a bracket and a plurality of contact sets, wherein each contact set comprises a common static contact, two tap static contacts, and a moving contact; thecommon static contacts are disposed on the bracket; the tap static contacts are disposed on the bracket and sequentially disposed in a circumferential direction; the moving contacts are movably disposed on the bracket, the ends of the moving contacts are movable in the circumferential direction, the moving contacts contact the common static contacts and one tap static contact when in a first gear,and the moving contacts contact the common static contacts and the other tap static contact when in a second gear. When the switching device realizes functions, the common static contacts in respective contact sets only need to be connected with one lead wire to eliminate the plurality of lead wires at the same position of the winding, which saves the cost of the transformer, and facilitates theutilization of the internal space of the transformer. The invention also provides a transformer comprising the switching device.