109results about How to "Change working mode" patented technology

The invention provides a household appliance control device and method. The household appliance control device is respectively in data connection with a cloud server, a user operating terminal and various household appliances and comprises an environment detection sensor module, an environment data sending module, an instruction receiving module and an instruction sending module. The environment detection sensor module is used for detecting environment data of the environment where the household appliance control device is located. The environment data sending module is used for sending the environment data to the cloud server and / or the user operating terminal so that the cloud server and / or the user operating terminal can generate instruction data according to the environment data. The instruction receiving module is used for receiving the instruction data. The instruction sending module is used for sending control instructions corresponding to the instruction data to the household appliances to control the household appliances to execute operation corresponding to the control instructions. According to the scheme, intelligent control over the household appliances can be realized, and the household appliances can match with the working environment intelligently.

The invention discloses an ion source suitable for a flight time mass spectrometer, which relates to an ion source for a mass spectrometer. The ion source is provided with a sample introduction booster pump, a solenoid valve, a repulsion electrode, an ionization chamber, a middle grid, an extraction grid, a focusing electrode, an emergent pole piece and an excitation source generator, wherein theoutlet of the sample introduction booster pump is communicated with the inlet of the solenoid valve; the outlet of the solenoid valve is communicated with the inlet of the repulsion electrode; the repulsion electrode is arranged in the inlet end of the ionization chamber; the middle grid is arranged at the outlet end of the ionization chamber; the extraction grid is arranged at the side of the middle grid; the focusing electrode and the emergent pole piece are successively arranged at the side of the extraction grid; the focusing electrode and the emergent pole piece are both provided with a central ion extraction through hole; the ionization chamber, the repulsion electrode, the middle grid, the extraction grid, the focusing electrode and the emergent pole piece are coaxial; a filament is arranged out of the upper end and the lower end of the ionization chamber; and the excitation source generator faces to an energy beam incidence hole arranged on the ionization chamber. According tothe ion source, a pulse ion group can be generated, the ion extraction efficiency is greatly improved, the ion use ratio is improved, and the sensitivity of the mass spectrometer is improved.

The invention discloses an X type open full-section tunnel boring machine. The X type open full-section tunnel boring machine comprises a driving system (2) and a cutter head (1) installed at the front end of the driving system, wherein the driving system (2) is connected with a protective shield system (3), an inner clamp assembly (6) and a rear supporting assembly (7) in sequence, an outer clamp assembly (5) is installed on the inner clamp assembly (6) through a propelling system (4), the outer clamp assembly (5) is composed of outer clamp structural components (15), supporting boots (16), supporting boot oil cylinders (17) and supporting boot oil cylinder guiding pillars (18), and the protective shield system (3) is composed of a top protective shield (8), side protective shields (10), a middle protective shield (12) and a bottom protective shield (13). By means of the structure of the X type open full-section tunnel boring machine, only a supporting point is needed to bear the gravity of the tunnel boring machine, the supporting area of a supporting boot plate is large, the X type open full-section tunnel boring machine is wide in application range of surrounding rocks and high in flexibility, the gravity center of the tunnel boring machine is balanced so that the phenomenon of sinking in the tunneling process of the main machine can be avoided, and the work mode can be changed in order to adapt to variation of different surrounding rocks in the tunneling process.

The invention discloses a mobile intelligent meter reading system. The invention is characterized in that the system comprises a PC interface end, a PC work station, a GPRS network, a mobile terminal, an electronic tag, a concentrator and a printing terminal. The PC interface terminal sets a Web Service interface to synchronize data and to realize the uploading and the downloading of the data; the PC work station is used for leading the mobile terminal to be accessed into an enterprise MIS network; a GPRS network is used for leading the mobile terminal to be accessed into the enterprise MIS network; the mobile terminal uses a palm PDA to set a mobile meter reading procedure, a 232 serial port, a Bluetooth interface and a radio-frequency card, so as to realize each task such as downloading, uploading, managing meter reading, gauging and recording information, recording defects, reading meter on the spot, printing the advice note of energy charge, and counting meter reading results, and the like; the concentrator realizes the communication between the palm PDA mobile meter reading procedure and the ammeter of a meter box; and the printing terminal realizes the on-spot printing of the advice note of the energy charge of the mobile meter reading procedure on the palm PDA by the Bluetooth. The system realizes the combination of mobile intelligent meter reading and marketing MIS.

The invention relates to an industrial robot automatic processing method and device for a logistics system. Including a conveyor belt, the conveyor belt is a segmented structure, the front section is a waiting area conveyor belt, and the rear section is a conveyor belt, and the waiting area conveyor belt is controlled by a transmission motor; Connected distance control device, alignment device, code scanning device, steering device, code scanning centering device, box adjustment device, weighing device, rejecting device, and coding device. The invention has reasonable structure and convenient use, can change the original working mode of workers, reduces the occupation of the production site, and saves the production space. 4. Mechanical operation and precise process control ensure product quality.

The invention discloses a fault detection device and method of a finished automobile controller. The method comprises that a communication module writes a diagnosis mode program in the finished automobile controlled in a detection scene, writes a work mode program in the finished automobile controlled in a work scene, and provides data communication between the finished automobile controller and a host computer controller in the detection process; the host computer controller determines and emits a detection instruction according to a channel between each pin and a microprocessor, and determines the fault type and position according to detection result signals from the communication module or a signal processing and collecting module, corresponding detection instruction and the corresponding pins; and the signal processing and collecting module receives the detection instruction emitted by the host computer controller, generates a detection signal, sends the detection signal to corresponding pins at the input end of the finished automobile controller, collects the detection result signals from the finished automobile controller, and returns the detection result signals to the host computer controller. The device and method of the invention can improve the accuracy and efficiency of fault detection.

The invention discloses an intelligent analysis method and system for a power grid access point of an electricity customer. The intelligent analysis method comprises the steps that installation information of the electricity customer is received, wherein the installation information contains the installation address, the installation type, the installation capacity and the percentage of concurrence; a positioning point on a map is determined according to the installation address, and an access point device meeting preset conditions is searched for within the specified searching radius range of the positioning point according to the installation type; the information of a customer needing installation is obtained from a marketing system, the historical data of the position where the access point device is to have access are obtained from a metering automation system according to the installation type, and the maximum load rate of the position where the access point device is to have access after the access point device has access to the position is calculated; whether the maximum load rate is smaller than or equal to a threshold value is judged; if yes, the access point device corresponding to the maximum load rate is taken as the standby device of the electricity customer. According to the intelligent analysis method and system for the power grid access point of the electricity customer, a method for calculating the load rate of a device after a new installation load integrated based on distribution information has access to a device is provided, and a forceful supporting basis is provided for power supply scheme selection.

The invention discloses an intelligent library system for universities. Mutual cooperation of an online APP, a comprehensive management system and offline intelligent equipment is utilized, an unmanned working mode of a library borrowing and returning flow is achieved, more human resources are liberated, and unmanned and intelligent construction of libraries is promoted. In the borrowing process,a user finishes a borrowing reservation on the online APP. The comprehensive management system processes borrowing information and sends a task instruction to an intelligent borrowing and returning trolley. The intelligent borrowing and returning trolley distributes and places target books into an intelligent borrowing and returning cabinet. The user can directly take the books from the intelligent borrowing and returning cabinet. In the returning process, the user returns the books through the intelligent borrowing and returning cabinet. The intelligent borrowing and returning cabinet automatically magnetizes the returned books and stores the returned books in a classifying manner. The comprehensive management system sends the task instruction to the intelligent borrowing and returning trolley. The intelligent borrowing and returning trolley takes the books from the borrowing and returning cabinet and places the books back to an intelligent bookshelf. The intelligent bookshelf carriesout position information binding on the books on the bookshelf and sets up a database. The specific books can be inquired through the database, and the books can be checked conveniently.

The invention provides a method for estimating a position of a branching joint of a transformer in a transformer substation. The method comprises the following steps of: 1, acquiring an equipment model in the transformer substation and measurement data, filtering the measurement data according to a mass identifier and a calculation demand of the measurement data, and selecting effective measurement data, wherein the acquired measurement data comprise a name plate parameter of the transformer and power, voltage and current measurement and pulse modulation unit (PMU) measurement of each set of equipment; 2, determining transformation ratios k12 and k13 of a high-voltage side winding to a medium-voltage side winding and a low-voltage side winding according to the PMU measurement or a power measurement value and a voltage measurement value, and pre-estimating the position of the branching joint of the transformer according to the transformation ratios k12 and k13; and 3, adding a virtual node between an ideal transformer and equalized impedance, performing optimization analysis according to a constriction relation between the measurements, and acquiring an estimation result of the position of the branching joint of the transformer. The position of the branching joint of the transformer is calculated and estimated by using various original parameters and data in the transformer substation, and the estimation result is accurate and real-time.

The invention discloses a device for measuring a surface velocity and a flow direction of a river, a rivus and the sea. A buoy shell, a mooring cable and a counter weight are arranged on the water. A global positioning system receiver, a signal transmitting device and a power supply are arranged in the buoy shell. A signal receiving device and a terminal are arranged on the bank. In the process of measuring the surface velocity and the flow direction, the global positioning system receiver in the buoy shell receives a signal transmitted by a satellite, so that position coordinates of a location point are known; the point is preserved in a positioning receiver memory and the signal is simultaneously transmitted through the signal transmitting device; and the receiving device receives the signal and is connected with the terminal, so that the real-time monitoring and data processing are realized. The flow velocity and the flow direction are continuously measured, the process of signal receiving, storage, transmitting, far-end receiving and monitoring and processing is circularly carried out, and the work of measuring the flow velocity and the flow direction is automatically completed. According to the device, the middle-distance and remote wireless transmission can be realized in a large space range, the flow velocity and the flow direction are monitored in real time, and manpower and material resources are effectively saved.

The invention relates to the technical field of terahertz metamaterial functional devices, in particular to a graphene metamaterial terahertz device capable of being dynamically regulated and controlled based on an anapol mode and a preparation method and application of the graphene metamaterial terahertz device. The terahertz device comprises the following parts: a single-layer metamaterial witha periodic structure; the unit structure of the periodic structure is of a circular ring structure and is composed of two symmetrically-arranged semicircular split rings made of metal materials, eachsplit ring is composed of a ring body and an extension arm, and the extension arms extend from the ring bodies to the circle centers of the ring bodies; an opening is formed between the two split rings, the opening penetrates through the diameter of a circular ring structure formed by the two semicircular split rings, and the extension arms are perpendicular to the opening; openings of the ring bodies and the extension arms are filled with graphene. The Fermi energy of the graphene is adjusted through electrostatic doping, so that the conductivity of the graphene is tuned, and terahertz anapleresponse dynamic tuning is realized.

The invention discloses a DC charging device, which comprises a control unit and a main circuit. An AC rectifying unit is used for rectifying AC to DC and outputting the DC to a DC boost unit for boost; a primary-side full-control active bridge is used for converting the DC to square wave AC; and an isolation transformer is used for outputting the square wave AC to a secondary-side active bridge for being rectified to DC to be outputted to a load. The invention also discloses a charging system, which comprises multiple DC charging assemblies in mutual parallel connection, wherein each DC charging assembly comprises multiple DC charging devices sequentially in serial connection. The invention also discloses a charging method, which comprises an independent working mode and a series-parallel networking working mode. In the independent working mode, a single charging device charges a single load; and in the series-parallel networking working mode, multiple DC charging assemblies are in parallel connection for charging the single load. The device, the system and the method of the invention have the advantages that input of multiple types of power supplies is compatible; various types of loads can be met; and the like.

The invention discloses a resonance circuit, which comprises a switch unit, a resonant unit, a transformer and a secondary rectifier unit, wherein the resonant unit comprises a resonant capacitor and a resonant inductor; the resonance circuit further comprises a current acquisition unit, a signal processing unit, a drive control unit, a first clamping unit and a second clamping unit; a first end and a first reference voltage end of the first clamping unit are connected; a first end and a second reference voltage end of the second clamping unit are connected; a second end of the first clamping unit and a second end of the second clamping unit are both connected to a public end of the resonant capacitor and a primary winding of the transformer; an input end of the current acquisition unit is connected to the resonant inductor; an output end of the current acquisition unit is connected to an input end of the signal processing unit; and an output end of the signal processing unit is connected to an input end of the drive control unit. When the cost of the resonance circuit is smaller, the working frequency of the resonance circuit is increased along with the increase of the output power, so that the working frequency of the resonance circuit is further improved.

The invention discloses a discrete type low-power consumption integrator for a delta-sigma modulator. The discrete type low power consumption integrator comprises a clock generation sub-module, a first feedback integral sub-module, a second feedback integral sub-module and an integral amplifier, the clock generation sub-module comprises a first output end, a second output end, a third output end and a fourth output end; and the clock generation sub-module circuit is connected with the first feedback integral sub-module, the second feedback integral sub-module and the integral amplifier throughthe output end of the clock generation sub-module circuit, and generates clock pulses with different phase frequencies to control the first feedback integral sub-module, the second feedback integralsub-module and the integral amplifier. The invention also provides a method for controlling the enable end of the integral amplifier by using the clock, which is used for reducing the power consumption of the integrator. According to the integrator, nonlinear distortion can be effectively reduced, the problem of voltage overshoot caused by switching can be greatly reduced, and the power consumption of the whole modulator can be greatly reduced by utilizing the integrator.

The invention discloses a steering wheel device for steer-by-wire vehicles, and aims to accurately detecting the rotary angle of a steering wheel, providing a proper and adjustable road feeling for a driver, changing the work modes under different work conditions and adjusting the full-steering rotary turn numbers of the steering wheel. A driving shaft is fixedly connected with an input shaft of an angular displacement sensor by a coupler, a transmission nut and a screw shaft are mounted in a match and transmission mode, a return spring is fixedly connected with the transmission nut by a support, an electromagnet is fixedly connected with the transmission nut, an iron core of the electromagnet and a baffle are connected by a pin shaft, grooves with different lengths are arranged on the frond and rear sides of a stroke baffle, the transmission nut is fixedly connected with a linkage rod, a work oil port of an oil cylinder is correspondingly connected with a work oil port of a proportional throttle valve by a pipeline, and a differential pressure sensor is arranged between two work oil pipelines of the oil cylinder. The steering wheel device for the steel-by-wire vehicles is suitable for engineering vehicles to be used as the steer-by-wire steering wheels.

The invention discloses a bevel-gear-type vehicle drive-by-wire steering wheel device in order to achieve the purposes that the rotation angle of a steering wheel can be detected accurately, adjustable and appropriate road feels can be provided for drivers, the working mode can be changed on different working conditions and full-wheel-steering rotation turns are completed by adjusting the steering wheel. A gear shaft is installed in a bearing seat of a box through a bearing, an electromagnetic coil is fixedly installed on the box, and a damping disk is fixedly connected to the lower end of the gear shaft. A driven bevel gear is fixedly installed at the right end of a transmission lead screw, a driving bevel gear is fixedly installed on the gear shaft, and the driven bevel gear and the driving bevel gear are installed in a meshed, transmission and matched mode. A transmission lead screw is installed on the box through a bearing, and a transmission nut and the transmission lead screw are installed in a transmission and matched mode. A shell of an angular displacement sensor is fixedly installed on the box, and an input hollow shaft of the angular displacement sensor is fixedly connected with the transmission lead screw. The bevel-gear-type vehicle drive-by-wire steering wheel device is suitable for being used as a drive-by-wire steering wheel of a vehicle.

The invention provides a wireless optical fiber transceiver. The wireless optical fiber transceiver comprises an optical transceiving module, a conversion module and an electric interface, wherein the optical transceiving module and the electric interface are respectively connected with the conversion module. The wireless optical fiber transceiver is characterized by further comprising a wireless communication module, a function control module and a controller, the wireless communication module is connected with the conversion module, and the electric interface, the wireless communication module and the controller are respectively connected with the function control module. The wireless optical fiber transceiver has the benefits that due to the additional arrangement of the wireless communication module, the optical fiber transceiver has a wireless communication function and can carry out wireless data transmission; due to the additional arrangement of the function control module, the optical fiber transceiver can be switched between wired communication and wireless communication; the work mode of the optical fiber transceiver can be conveniently changed by a user through the adoption of a key or a button as the controller; due to the additional arrangement of a function indicator, the mode in which the optical fiber transceiver works can be visually observed by the user.

The invention relates to a non-special line client access method for a 10kV power distribution network, and belongs to the technical field of power distribution networks. The method comprises the following steps: S1, performing automatic collection and whole-process management analysis of power grid planning data based on big data; S2, carrying out data planning simulation analysis on a power distribution network planning net rack; S3, dynamically visualizing the planning and development process of the power distribution network; S4, calculating and preprocessing power grid data; S5, performing power distribution network power flow calculation. According to the method, the working mode of the traditional client access service is changed, and the graphical and informationized services are completely penetrated into the actual service. A series of work of power grid funding, current situation power grid analysis, non-special line client access scheme compilation, access scheme quantitative analysis and the like is studied, and auxiliary decision making and management are achieved through the system.

The invention discloses a rolling wheel-stored underwater tourism investigation device. The rolling wheel-stored underwater tourism investigation device includes a fixing connection plate, and two sealed cabins having the same structures; the fixing connection plate is laid on the tops of the two sealed cabins; a gap is formed between the two sealed cabins; outlook windows are arranged on two ends of the sealed cabins; the rolling wheel-stored underwater tourism investigation device also includes a dive distance measurement alarm device, pneumatic tire wheels, swinging storage racks and hydraulic cylinders; one ends of the swinging storage racks are hinged on the bottoms of the sealed cabins, and the other ends of the swinging storage racks are fixed on piston rods of the hydraulic cylinders; the hydraulic cylinders are arranged in grooves formed in the bottoms of the sealed cabins, and the pneumatic tire wheels are arranged on the swinging storage racks; and the hydraulic cylinders pull the swinging storage racks to swing, the pneumatic tire wheels follow the swinging storage racks and enter grooves. The dive distance measurement alarm device can greatly improve the dive safety, and can prevent the investigation device from hard landing or colliding with underwater obstacles; and the pneumatic tires can be easily stored.

The invention discloses an energy storage battery management system and a bidirectional DCDC converter synchronization management method and a device thereof. The method comprises the steps that a measuring reference is set; the working condition of an electric drive system is judged; if the working condition is a dynamic working condition, a bidirectional DCDC converter transmits a synchronization signal to the energy storage battery management system; and synchronization connection of the bidirectional DCDC converter and the energy storage battery management system is established, and parameters of a current energy storage battery are acquired for the next step of computation. According to the method, the parameter variation of the bidirectional DCDC converter is compared with the measuring reference to confirm the working condition of the electric drive system so that timeliness is better; besides, a synchronization working mode of the energy storage battery management system and the bidirectional DCDC converter is established, change of the working condition of the energy storage battery can be tracked in real time by the energy storage battery management system and the detection and management strategy of the energy storage battery management system can be adjusted so that the energy state and the power state of the system can be accurately provided, the service life of the battery system can be prolonged and reliability of the battery system can be enhanced.

The invention, which relates to the technical field of geotechnical engineering investigation, discloses a geotechnical investigation method based on a high-density electric method and a treatment system thereof. The geotechnical investigation method comprises: selecting a measuring area and arranging a measuring net; placing all electrodes on all measuring points of an observation section; collecting data rapidly by using a program-controlled electrode conversion device and a microcomputer engineering electrical measuring instrument; and sending a measuring result into the microcomputer. Therefore, the rapid data collection and microcomputer processing are realized and thus the e traditional working mode of resistivity exploration is changed, so that the work efficiency is improved and the labor intensity is reduced. Since the high measuring point density is set for the high-density electrical method, the vertical and horizontal two-dimensional exploration process can be completed atone time, so that the observation accuracy is high and the data acquisition is reliable. The obtained geological information is rich, and the basis is reliable.

The present invention discloses a subjective audiometry system for audiometry. The subjective audiometry system for the audiometry comprises a testing device, a display device and a control device, and the testing device is worn on both ears of a subject and arranged to emit a test sound to the subject; the testing device is connected with the display device, the display device is controlled by the subject, and the display device surface is provided with a manipulation interface; the manipulation interface is provided with a plurality of operation regions and the operation regions comprise a test item selection region and a response region; the test device and the display device are both connected with the control device, and the control device is arranged to treat feedback information bythe test device and the display device. The subjective audiometry system for the audiometry is basically completely dominated by the subject in the test process, replaces a control method of traditional subjective audiometry needing cooperation by operators and the subject, changes a working mode of the operators, can maximally reduce error caused by human factors and improves accuracy of the test.

The invention relates to a terahertz metamaterial converter with switchable ring couple and galvanic couple based on MEMS planar structure reconstruction and a preparation method thereof, relates to aterahertz metamaterial converter with switchable working modes and a preparation method thereof, and aims at solving the problems of small resonant tuning depth of planar terahertz metamaterial ringcouple, complex external equipment required for the excitation mode, narrow optional range of active materials and small linear properties. The terahertz metamaterial converter comprises a base silicon substrate, a comb-shaped electrostatic drive structure, a fixed metal structure array, a movable metal structure array and a suspended silicon frame. The method comprises the steps: 1, deposition ofa silica layer; 2, patterning of a photoresist mask with an anchor structure; 3, formation of the anchor structure; 4, bonding and thinning of structural layers; 5, patterning of metal structure units; 6, patterning of the photoresist mask; and 7, etching silicon and releasing the MEMS structure. The preparation method is mainly used for preparing the terahertz metamaterial converter with switchable ring couple and galvanic couple.

The invention relates to the field of mechanical technology, and particularly to an intelligent nurse PDA system. The intelligent nurse PDA system comprises a PDA, an HIS system and a wireless charging dock for charging the PDA. In the intelligent nurse PDA system, the HIS system extends to the bedside of a patient; a nurse can check basic information of all patients at the bedside by means of thePDA, thereby changing the working mode of an original doctor's advice system, maximally reducing a distance between the nurse and a patient, tracking the full lifecycle of the doctor's advice, extending the HIS to the bedside of the patient, realizing real-time recording of doctor's advice execution time and an executor; bedside patient identification confirming is utilized, thereby ensuring correctness of the patient, the time and a nursing behavior in a nursing process; nursing information acquisition is utilized for realizing vital sign data acquisition at the bedside. The intelligent nurse PDA system has advantages of automatically generating various nursing lists, reducing repeated operation of the nurse, reducing labor intensity, optimizing a working flow, realizing more time for nursing the patient by the nurse, and prolonging effective service time length.

The invention belongs to the technical field of remote sensing image processing, and discloses an on-orbit high-precision light-weight global image control point database construction method and system, and the method comprises the steps: obtaining a control point of a satellite remote sensing image through employing an image feature extraction algorithm and a uniform sampling algorithm; making acorresponding control point image film, and determining point location index information of a control point; sorting the attribute information of the control point to form a control point attribute file; constructing a global image control point database system structure; associating the control point image film with the control point attribute file by using a data integration technology to form acontrol point data block; and formulating a database storage strategy, and storing the control point images into a database. The method is suitable for remote sensing images provided by different global satellites, is refined in structure, simple to implement, small in database volume, high in data precision, high in expandability, and meets the requirements of on-orbit surveying and mapping processing.

The invention relates to 3D printer equipment. A screw feeding mechanism is arranged in a printing head of a printer; the 3D printer equipment comprises a drive device, a screw connected with an output shaft of the drive device and a screw barrel, wherein the screw is arranged inside the screw barrel; the drive device is mounted at one end of the outer part of the screw barrel; the feeding end of the screw is connected with a discharge hole of a hopper; the discharging end of the screw is connected with a printing head spray nozzle; and an electric heating ring is arranged on the outer part of the screw barrel. The 3D printer equipment changes the working mode of an existing plastic high-molecular 3D printer without using a pre-prepared linear plastic high-molecular material while only a granular or powdered thermoplastic high-molecular material is needed; and moreover, a colorant can be mixed while the material is added, so that a colorful 3D printing function is realized.

The invention discloses a novel cloth cotton blending machine. The novel cloth cotton blending machine comprises a machine body, and a cotton blending bin is formed in the machine body; two air blowers are symmetrically installed on the two sides of the bottom end of the machine body, air delivery pipes are connected to the air outlet ends of the two air blowers, an air inlet chamber is formed inthe machine body, and the ends, away from the air blowers, of the two air delivery pipes are communicated with the interior of the air inlet chamber; a cotton blending motor is installed on the top wall of the machine body, a rotating rod is installed on the driving end of the cotton blending motor and penetrates through the top wall of the machine body to extend into the cotton blending bin, a cotton blending net is installed on the outer side wall of the rotating rod, and a plurality of cotton dividing cutters are installed on the lower side of the cotton blending net. The novel cloth cottonblending machine is simple in structure and easy to implement; the working mode of a traditional horizontal cotton blending machine is changed, blended materials can be manually controlled to remainin the cotton blending bin, the materials can be fully blended, the product quality of blend fiber materials is improved, and the work efficiency is also improved.

The invention discloses an X type open full-section tunnel boring machine. The X type open full-section tunnel boring machine comprises a driving system (2) and a cutter head (1) installed at the front end of the driving system, wherein the driving system (2) is connected with a protective shield system (3), an inner clamp assembly (6) and a rear supporting assembly (7) in sequence, an outer clamp assembly (5) is installed on the inner clamp assembly (6) through a propelling system (4), the outer clamp assembly (5) is composed of outer clamp structural components (15), supporting boots (16), supporting boot oil cylinders (17) and supporting boot oil cylinder guiding pillars (18), and the protective shield system (3) is composed of a top protective shield (8), side protective shields (10), a middle protective shield (12) and a bottom protective shield (13). By means of the structure of the X type open full-section tunnel boring machine, only a supporting point is needed to bear the gravity of the tunnel boring machine, the supporting area of a supporting boot plate is large, the X type open full-section tunnel boring machine is wide in application range of surrounding rocks and high in flexibility, the gravity center of the tunnel boring machine is balanced so that the phenomenon of sinking in the tunneling process of the main machine can be avoided, and the work mode can be changed in order to adapt to variation of different surrounding rocks in the tunneling process.

The application discloses a digital filter device and method used for a pulse width modulation signal. The digital filtering device comprises a first filter, a second filter, a storage device, a multiplier and a data controller. The first filter is used for carrying out low-pass filtering of a pretreatment signal of the pulse width modulation signal to generate a first intermediate signal. The second filter is used for carrying out high-pass filtering of the first intermediate signal to generate audio data. The storage device is used for storing parameter values and historical values of the first filter and the second filter. The multiplier is used for carrying out multiplication according to the parameter values and the historical values so as to carry out filtering. The data controller is used for connecting the storage device and the multiplier with the first filter and the second filter in a time sharing mode respectively, so as to carry out filtering. The digital filtering device can reduce the power consumption, the chip size and the cost by using shared modules.

The invention discloses a micro-valve system based on the flow path state. The micro-valve system comprises a microfluidic chip and a pressure sample inlet system. The chip comprises a main flow path and multiple sample inlet flow paths. Switching among three work modes including a reverse sample inlet mode, a valve closing mode and a forward sample inlet mode of the microfluidic chip is achieved by adjusting the magnitude of a pressure source of a sample inlet device and a pressure source of a main flow path sample. The micro-valve system is simple in structure, machining and integrating are easy, a control method is simple, control equipment is low in complexity, and the opening degree of the micro-valve system is controllable.