72results about How to "Have control" patented technology

The invention relates to an H-bridge driving control circuit of a motor, which comprises an H-bridge driving circuit, a driving control unit, an anti-interference unit and a protection unit, wherein in the H-bridge driving unit, two diagonal branch circuits are formed by four switching tubes; the driving control unit is used for converting an input control signal into a suitable voltage for controlling to switch on the corresponding switching tube; the anti-interference unit is used for preventing the upper arm switching tube of the other branch circuit from being switched on when one branch circuit is in the switch-on state; and the protection unit is used for preventing the lower arm switching tube of the other branch circuit from being switched on when one branch circuit is in the switch-on state. The H-bridge driving control circuit of the invention prevents the P switching tube which cannot be switched on from being switched on due to starting of the motor or burr generated by transient large current, improves the anti-interference capacity of the circuit, and can rapidly switch off the corresponding N-channel switching tube when the circuit control signal is disordered or goes wrong, so that the circuit has through protection function. The whole driving control circuit is driven by a single power supply, is easy to implement and has a simple structure, and the reliable work of the circuit is further guaranteed.

The invention is to protect the coolant extrinsic cycle system of the engine bench test. The engine water-yielding is educed the cooling liquid pipe which returns to the engine infall after passing a heat exchanger to form a closed circle. The cool end pipe of the heat exchanger is installed with the valve which is closed. The temperature sensor is set in the engine water-yielding and the signal line is connected to the controlling unit which the controlling line is connected with the valve and the alarming device. The controlling unit is set with two temperature value, one is the highest cooling liquid temperature endured by the engine and the other is the proper cooling liquid temperature of the engine. The invention can shorten the warming time of the engine and improve the quality and reliability of the engine bench test.

The invention discloses a method, system and device for carrying out service relay for a first standard terminal, and relates to the technical field of wireless communication. According to the embodiment of the invention, a first standard/second standard dual-mode terminal is selected for carrying out service relay for the first standard terminal to a second standard base station, the first standard/second standard dual-mode terminal reports the first standard terminal and relay information thereof to the second standard base station so as to enable the second standard base station to distributed relay configuration information used by the service relay based on the reported information, and the first standard/second standard dual-mode terminal is communicated with the first standard terminal based on the relay configuration information, so that relay of devices different in standard is realized, conventional relay nodes are not needed, the network covering performance of a first standard user is improved under the condition that the disposition scope of a first standard base station is limited, and the cost and the workload of a service provider are saved. In addition, the second standard base station has a control force over the whole relay process, and the stability and the performance of the system are ensured.

The invention discloses a method for acquiring and updating configuration for network equipment. The method is divided into a manned management mode and an unmanned management mode. The manned management mode comprises the following steps of: detecting the network equipment through a network equipment management program in a computer terminal, and sending a basic information query instruction to the network equipment through universal serial bus (USB) connection, wherein the basic information comprises but is not limited in media access control (MAC) address, equipment model and information of marking equipment identity of a serial number; after the network equipment receives the instruction, sending the basic information in the step A2 to the computer terminal; and after the computer terminal receives the basic information of the network equipment and processes the information, presenting the information to an administrator and the like through a user interface of a program. Identity authentication and communication encryption can be eliminated, and an internet protocol (IP) is not required to be configured, so the method is very convenient and simple.

A cluster controller of etching machine consists of input unit for inputting data into controller, storage unit for storing data, output unit for displaying monitor state, CPU for executing control information, transmission unit being used to connect with etching machine and process module for outputting control information to etching machine according to condition required by process flow stored in said module.

The invention discloses a preparation method of a Ca-P-Sn composite coating layer on the surface of magnesium alloy. The preparation method comprises the steps of taking sodium EDTA (Ethylene Diamide Tetraacetic Acid), calcium nitrate, monosodium phosphate, nano tin oxide of which the grain size is 50 to 70 nm and distilled water as raw materials to prepare a precursor solution; then soaking a to-be-processed magnesium alloy substrate in the precursor solution in a hydrothermal reaction kettle, regulating the pH (Potential of Hydrogen) value to be 2.0 to 4.0 by strong base, adding the nano tin oxide, and preparing the Ca-P-Sn composite coating layer, of which the thickness is 50 to 80 mum, on the surface of the magnesium alloy by adopting a hydrothermal method, namely, doping a Ca-P coating layer by utilizing tin oxide. Compared with the prior art, the preparation method disclosed by the invention has the advantages that the technology is simple, flow is short, the control is easy, the production cost is low, the obtained coating layer is compact in structure, strong in adhesion and good in anti-corrosion performance, and the like; an obtained product not only can be used for carrying out anti-corrosion treatment on a material for a magnesium alloy structure, but also is suitable for being applied to the field of medical magnesium alloy.

The invention provides a full-aqueous release coating for an electrochemical aluminum hot stamping foil and a preparation method of the coating. When a release coating in an alcohol-water system is inuse, because the volatilization of ethyl alcohol and demulsification of a wax emulsion cause the quality defects such as concentration rising, which affects the release tightness of a product, and the utilization rate of the release coating in the alcohol-water system is low, a large amount of waste is caused. The full-aqueous release coating is prepared from, by weight, 80-98 parts of purified water, 1-5 parts of an aqueous polyurethane emulsion, 0.1-1 part of an aqueous acrylic emulsion, 0.1-1 part of a polyurethane crosslinking agent, 1-5 parts of an aqueous wax emulsion, 0.1-0.5 part of awetting agent and 0.1-1 part of a defoaming agent. The release coating improves the water resistance, solvent resistance, temperature resistance and mechanical properties of coating film; the recoating performance of the release coating is good, and coating requirements of subsequent colored layer coating can be met; the release effect is excellent, a hot stamping layer is transferred completely,and the release tightness is adjusted by adjusting the addition amount of a release agent.

The invention relates to a large-stroke high-rigidity series-parallel hybrid machine tool with the reconfigurable characteristic. The large-stroke high-rigidity series-parallel hybrid machine tool comprises a fixed working table, an X-direction movement unit, a Y-direction movement unit, a lifting adjusting device, three driving branches with same structures, a movable platform and a main shaft head. A special clamp is installed on the fixed working table, and the X-direction movement unit and the Y-direction movement unit are each composed of a rack and a servo driving unit. The lifting adjusting device comprises three passive branches with the same structures and a middle active branch, the structure dip angle of a parallel structure can be adjusted, and the parallel structure has the reconfigurable characteristic. The three driving branches with the same structures are connected with the lifting adjusting device and the movable platform, and one-dimensional movement and two-dimensional movement can be achieved through the space closed loop parallel mechanism. The large-stroke high-rigidity series-parallel hybrid machine tool has the beneficial effects of good structural symmetry, high rigidity, large working space, high posture capacity, good in dynamic performance and the like; meanwhile, the beneficial effects of a series machine tool and a parallel machine tool are achieved at the same time; and the large-stroke high-rigidity series-parallel hybrid machine tool can be used for five-axis machining of large heterogeneous part complex surfaces.

A rotary tiller belongs to the technical field of rotary tillers. According to the rotary tiller, the interior of a machine body is provided with a speed-changing direction-changing transmission mechanism, a 360-degree rotating crawler drive mechanism, and a machine speed-reducing box in a cooperative mode. The interior of the machine body is also provided with an engine and a pump body assembly in a cooperative mode, wherein the pump body assembly includes a first variable pump, a second variable pump, and a third variable pump, the third variable pump is in control connection with a machinemotor, and the first variable pump and the second variable pump are connected to left and right crawler-driving motors, respectively. The rotary tiller has a two-stage speed regulation function and ahigh transmission efficiency, and can realize 360-degree rotary reversal in situ; a speed-changing latch handle transmission mechanism has three gear positions, that is, a forward gear position, a neutral gear position and a reverse gear position, and through position control of an entire direction-changing transmission assembly, control on the interiors of the variable pumps is realized, and thespeed of the rotary tiller can be changed; and with the direction-changing transmission mechanism, position change of a crawler-controlled variable pump connection seat can be realized through a smallrotation amount, and thus differential-speed direction change can be realized.

The invention relates to a portable adsorption type natural gas recovery device and method. The device consists of a gas collecting module, a machine pump module, an adsorption module and a control module, wherein each of the modules comprises a natural gas bottle or an LNG bottle, a gasifier, a buffer tank, a vacuum pump, a natural gas compressor, an ANG bottle, a control cabinet, a pressure, temperature and oxygen detecting probe and various valves; main body equipment of the device is mounted on a gasifier prying block, a buffer tank prying block, a vacuum pump prying block and a compressor prying block; the prying blocks are in bolt connection, so that in-site assembled prying can be convenient to perform, and a vehicle-mounted natural gas recovery device can be made, so that the movement and the operation are convenient. The ANG bottles can be demounted, and replaced, and system operation is not influenced. The device is provided with a vacuum system for vacuumizing the system. According to the portable adsorption type natural gas recovery device and the method disclosed by the invention, natural gas exhausted from the natural gas bottles or the LNG bottles is collected to the gasifier and the buffer tank; a compressor is used for compressing the natural gas through medium pressure into the ANG bottles to be stored, so that recovery is realized. When being required by outside, gas in the bottles can realize desorption for use of energy resources.

The invention relates to a hydraulic clamp capable of tilting vertical and horizontal rolls in air, which comprises a horizontal rotating part, a tilting part, a clamp part, a hydraulic part, a chain assembly and a control part. The hydraulic air tilting clamp provided by the invention can hang steel rolls in the air and tilt the steel rolls from horizontal rolls into vertical rolls and vice versa, enhances the production efficiency, saves the cost and improves the convenience and safety of the operation through the action of the control part.

The invention discloses a high-sensitivity light-sensing system of a solar light tracker, which includes a housing, a light intensity adjuster and a light spot receiving sensor; the light intensity adjuster is arranged on the housing, and the light spot receiving sensor The device is arranged in the housing, and the light spot receiving sensor is set at the light spot gathering place of the light intensity adjuster; the light intensity adjuster is a combination of a condenser lens and a color-changing mirror or a color-changing condenser lens; the light spot The receiving sensor includes a wiring board, a photocell assembly arranged on the wiring board and lead wires drawn from the wiring board. The high-sensitivity light-sensing system of the solar tracker of the present invention has outstanding advantages including: simple structure, convenient manufacture, cost saving, the lens itself also has a self-cleaning function, and is not easy to fall dust; the sun using the high-sensitivity light-sensing system The light tracker has the advantages of high sensitivity, easy control, and high precision. It has good economic prospects and can produce good social benefits.

The invention provides a vehicle air compressor and an intelligent air supply system device thereof. The vehicle air compressor is characterized in that the vehicle air compressor is provided with a driving gear (2) and a driven gear (11) which are a pair of gears with the same tooth number, the driving gear (2) is driven by a motor (58), and the driving gear (2) is meshed with the driven gear (11) with the same tooth number, so that two crankshaft connecting rod mechanisms are driven to rotate oppositely, under the driving of the two crankshaft connecting rod mechanisms which rotate oppositely, two pistons of a high-pressure piston group and a low-pressure piston group realize alternate up-and-down reciprocating motion; the pair of gears with the same tooth number are arranged on a main journal (64) of a crankshaft (4), and the crankshaft (4) adopts the double-point supported crankshaft (4) and a maintenance-free bearing (5) which is located at an eccentric crankshaft journal (62) ofthe crankshaft (4). The intelligent air supply system device has the advantages of small vibration, low noise, long service life, high protection level, intelligent control, compact structure, convenience in installation and arrangement and the like.

The invention provides a WiFi night lamp. The WiFi night lamp comprises a lampshade and a base; the lampshade is a hollow shell, and the base is fixed to the bottom of the lampshade; the lampshade is divided into an upper part and a lower part, the upper part is made of transplant materials, and a power source driving module, a route WiFi module and a light source module are arranged in the lampshade, wherein the light source module is fixed at the position between the upper part and the lower part of the lampshade, and the route WiFi module and the power source driving module are sequentially fixed below the light source module from top to bottom; and the power source module is fixed in the base. The WiFi night lamp is concise and attractive in model, the better decoration effect can be achieved, and lighting can be achieved; meanwhile, the actual functions of lighting, wireless routes and movement power sources are achieved, whole integration is achieved, and convenience is brought to control; and troubles, caused by too many electric appliances in the aspects of control, arrangement, power interface using, caring and the like, of users are effectively reduced.

The invention discloses a digital valve flow control system and an optimal control method thereof. The system comprises a signal input device for inputting a preset value, a v-shaped ball valve, a three-phase asynchronous motor for controlling the opening degree of the v-shaped ball valve, a valve position feedback device, a frequency converter for adjusting the rotation number and the rotation direction of the three-phase asynchronous motor, an amplifier, and a PLC. The three-phase asynchronous motor is electrically connected with the frequency converter, and the frequency converter is electrically connected with the amplifier, and the valve position feedback device, the amplifier and the signal input device are all electrically connected with the PLC. The optimal control method comprisesthe steps that a transfer function of the system is established, and a state equation of the control system is worked out by the transfer function, and an optimal solution is performed on the state equation to obtain an optimal control system. The invention is advantageous in that flow stability and interference resistance are good; the intelligent control is adopted to enable the accurate valveflow control device to have relatively good stability and energy-saving effect.

The invention relates to the technical field of metallurgical production, and discloses an automatic control system for pressure of a liquid chlorine gasification device. The system comprises the liquid chlorine gasification device, a liquid chlorine conveying pipeline, a chlorine conveying pipeline and a steam conveying pipeline, wherein the liquid chlorine conveying pipeline is provided with a liquid chlorine cut-off valve and a liquid chlorine adjusting valve in sequence; the chlorine conveying pipeline is provided with a chlorine pressure sensor; the steam conveying pipeline is provided with a steam pressure sensor; a pressure signal detected by the chlorine pressure sensor is transmitted to a host; a valve opening control signal is emitted to the liquid chlorine adjusting valve by the host to control the opening of the liquid chlorine adjusting valve; the detected steam pressure signal is transmitted to the host by the steam pressure sensor; a liquid chlorine cut-off valve opening control signal is emitted by the host to control the opening of the liquid chlorine cut-off valve. The system has the chlorine pressure on-line detection and pressure automatic adjustment functions, can realize automatic protection during steam decompression or low voltage of the liquid chlorine gasification device, the input of the liquid chlorine is cut off through one key, and the safety performance of production equipment is improved.

The invention discloses a drainer overturning control device based on gravity detection. The method is based on a motor which is fixedly connected with a drainer by virtue of a rotating shaft, and comprises the following steps: presetting a weight value of water in a pool basin; detecting the weight of water in the pool basin, and acquiring the weight value; presetting a difference table, dividing the differences into multiple ranges by virtue of the difference table, and setting the corresponding value of the number of rotating turns of the motor in each range; obtaining an actual difference value; comparing the actual difference value with the difference table, and determining the range in which the actual difference value is positioned so as to acquire the number of rotating turns of the motor set in the range; driving the rotating shaft to rotate by the motor according to the acquired number of rotating turns of the motor, and driving the drainer to turn so as to form an included angle between the drainer and a drain opening. According to the method disclosed by the invention, the value of the number of different rotating turns of the motor can be acquired according to the difference range, and the motor is controlled to rotate for different turns, so that different included angles are generated between the drainer and the drain opening, and automatic drainage control can be realized.

The invention provides a solid-state food cutting machine capable of circulating delivery. The cutting machine comprises a base, and a cutting support body arranged on the base and used for cutting, wherein supporting shafts arranged on the two sides of the cutting support body respectively are fixedly mounted on the base; a pushing part for pushing the cutting body to operate is arranged at the upper part of the cutting support body; a controller is fixedly arranged on the operational surface of a mounting part; a low-position detector is mounted at the bottom of the pushing part so as to detect the low position of the pushing part; a high-position detector is mounted at the high position of the pushing part so as to detect the high-position; an electromagnetic contactor is mounted at the top of the pushing part so as to control the working position of the pushing part; a programmable controller is connected with the outer part of the controller so as to conduct overall monitoring and control; a conveyor is mounted at the front end of the base correspondingly; solid-state food undercutting plates are arranged on the conveyor in sequence. The solid-state food cutting machine has the advantages that the machine is stable in operational effect, larger in extrusion force, better in the protection of a cutting tool, more stable and solid in internal structure, and has the advantages that the automatic detecting and controlling can be implemented, and the automatic delivery can be implemented for conducting cutting and processing.

A DC/AC hybrid and off-grid energy rout device is disclosed, It mainly consists of distributed power interface, bidirectional AC power interface, unidirectional DC power output interface, sensor signal interface, energy storage battery interface, unidirectional AC power output interface, energy router control module, energy meter (10, 16), grid-connected transfer switch, off-grid transfer switch,multi-MPPT-DC/DC module, bidirectional DC/AC module, A switch power supply/rectifier module is compose of, in accordance with that signal interface of the sensor, distributed power interface, Data transmitted by the energy storage battery interface, Through the detection and control of the unidirectional DC power output interface and the bidirectional AC power connection interface by the energy router control module, the multi-path AC/DC hybrid off-grid active power supply and distribution for different loads and different periods is realized, the structure of the micro-grid is optimized, andthe clean energy access ratio and the active distribution capacity are improved.