203results about How to "Strong security and reliability" patented technology

The invention discloses a mountain torrent disaster on-line monitoring and identification early warning method. The method includes the following steps that: a data acquisition subsystem acquires data at a site: an automatic rainfall monitoring station acquires and processes disaster field rainfall information and transmits the information to the system platform of an early warning index analysis model through a wireless mode and/or a wired transmission mode, a water level and/or mud level monitoring station acquires and processes field debris flow and water level information and transmits the information to the system platform of the early warning index analysis model through a wireless mode and/or a wired transmission mode, and a video monitoring station acquires and processes disaster field image information and transmits the information to the system platform of the early warning index analysis model through a wireless mode and/or a wired transmission mode; an identification early warning subsystem performs early warning judgment and issues internal early warnings; personnel are determined, and formal early warnings are issued; real-time monitoring is performed; and information query is performed. The method has the advantages of rapid identification and predictive early warning, and can assist in avoiding loss. The invention also discloses an early warning system using the mountain torrent disaster on-line monitoring and identification early warning method.

The invention provides a positioning fixture tool which is used for drilling and milling gold of an end cover of an electric generator and comprises a clamping device and a positioning device statically connected with the clamping device, wherein the clamping device is used for fixing the end cover and comprises a pull rod (1), a press block (2), a panel (4), an air cylinder (5), a long side plate (6), a short side plate (7) and a positioning table positioning pin (8); the positioning device comprises a positioning table (a1) and a positioning pin (a2); the panel (4), the long side plate (6) and the short side plate (7) from a support mechanism of the clamping device; and the pull rod (1) penetrates through the press block (2), the positioning table (a1) and the panel (4) and is connected with the air cylinder (5). By the aid of the tool, when the end cover of the electric generator is placed on a drilling and milling processing center, the positioning is accurate, the placing is convenient, the tool universality is high, the preparation time for product switching is short, the stability, the reliability and the safety are high with the adoption of air compression operation, and the production efficiency and the product quality are improved.

The invention discloses an electromagnetic shielding machine case which is composed of a machine case housing (1), side panels (9), waveguide windows, an aviation plug (8) and a power filter (12). Two side panels (9) are arranged on choke grooves (13) on two lateral sides of the machine case housing (1) respectively, the aviation plug (8) and the power filter (12) are arranged in the machine case housing (1), and a front side panel (6) and a rear side panel (11) are respectively provided with a waveguide window to achieve a purpose of efficient shielding. The electromagnetic shielding machine case is clear in structure and good in practicality, achieves the purposes of being convenient to move, high in shielding efficiency, safety and reliability, good in environment adaptation and wide in application range, solves the problems of computer damage caused by electronic pulse and electromagnetic information leaking and is suitable for military and confidential situations.

The invention relates to a motor system for lifting an ocean platform and a load unbalance monitoring and controlling method of the motor system. According to the motor system, an oil inlet pressure relay and an oil outlet pressure relay are respectively arranged at an oil inlet and an oil outlet of each motor and are used for monitoring the pressure of the oil inlet and the pressure of the oil outlet of each motor in real time and comparing the pressure of the oil inlet and the pressure of the oil outlet with a set pressure, if the pressure of the oil inlet and the pressure of the oil outlet are higher than the set pressure, the oil inlet pressure relay and the oil outlet pressure relay sent signals to a PLC (Programmable Logical Controller) control system and the PLC control system judges whether the motor is at a load unbalance state according to the time duration, and if the motor is at the load unbalance state, the PLC control system gives an alarm and is powered off, so that the load unbalance of the motor is monitored and controlled in real time, and therefore, the operation safety and reliability of the lifting system of the ocean platform are enhanced. The motor system disclosed by the invention is better in safety and reliability and strong in controllability.

The invention belongs to the field of printing of books, relates to a paper book, and particularly relates to a paper book with functions of an electronic book, which comprises a front cover (1), a back cover (4), a spine (6), pages (3) and an electronic chip (2). The electronic chip (2) is planted into the front cover (1) or the back cover (4) or the spine (6), is a radio frequency identification RFID electronic chip and is integrally connected with a USB (universal serial bus) interface (5) by a data line (7), and the USB interface (5) is disposed on the spine (6) and fixed to the upper end or the lower end of the spine (6). Advantages of a traditional paper book and the electronic book are combined and organically integrated, and the paper book with functions of the electronic book has excellent application prospect in the field of printing and publishing of books.

The invention belongs to the technical field of medical blood gas biochemical detection equipment, and relates to an integrated kit and a matched device thereof. The matched device consists of an integrated kit, an interface seat assembly, an analyzer bracket, a guide rail and a liquid path system; the integrated kit is composed of an encryption chip assembly, a kit body, a waste liquid bag assembly, a kit cover, a cleaning liquid bag assembly and a reagent bag assembly; and a cleaning liquid bag, a waste liquid bag and various standard liquid reagent bags are all internally packaged and sealed in the independent integrated kit in a combined and double-layer sealing mode. A double-needle layout is adopted on the waste liquid exhaust assembly, one needle is responsible for recovering wasteliquid, and the other needle is responsible for exhausting or overflowing the waste liquid; and once the waste liquid bag is filled with waste liquid or the waste liquid overflows along with gas, thewaste liquid can be reliably and completely recycled through the liquid path system, the safety of an operator is guaranteed to the maximum extent, and the integrated kit and the matched device can beapplied to medical diagnosis and clinical treatment of pneumonia infected by similar novel coronaviruses and used in cooperation with a blood gas biochemical analyzer.

The invention relates to a water heater and an electric leakage and dry burning preventing detection method of the water heater. The water heater comprises an inner container, a heating pipe, a pipe joint and a control unit, wherein the heating pipe is installed in the inner container through a heating tube flange, the pipe joint comprises an insulating piece and two metal pieces which are embedded in the insulating piece and are mutually insulated, the metal pieces which are arranged in the pipe joint and connected with the inner container are provided with conductive components, and the conductive components are led out from the insulating piece and are electrically connected with a current or voltage detection circuit in the control unit. Therefore, detection for whether electric leakage of the water heater exists can be achieved by means of the conductive components on the metal pieces contacted with the inner container, an achieving mode is simple, as long as electric leakage exists, timely alarming can be achieved, and safety and reliability are strong. Meanwhile, by means of judging whether the conductive components and conductive components on the heating tube flange are in a conductive state, whether the water heater is in a dry burning state can be judged, electrodes are not needed to be arranged inside the inner container, and structural design is simple, installation and maintenance are convenient, and cost is saved.

The invention discloses a three-motor steering-by-wire system and a control method thereof. The system comprises a steering wheel module, a steering module and an ECU control module. The steering wheel module is used for a driver to operate and control a vehicle to turn, the steering module comprises a first clutch, a third motor, a planet gear mechanism, a second clutch, a first motor, a second motor, a steering gear and a steering rack, ECU in the ECU control module reads the vehicle running speed, a corner signal of a steering wheel, a torque signal of a rotating rod, current fed back by all motor controllers and other signals, the vehicle steering working conditions are analyzed and judged, and then running of all motors and on and off of the clutches are controlled; motor power is subjected to coupling and distribution through the planet gear mechanism and then cooperates with on and off of the clutches, switching of different steering modes of the steering system is achieved, andthen the requirements of the different steering working conditions and the safety of the system are met.

The invention relates to a magnetic damping tension precision adjustment device which is characterized in that a wrapping tape is arranged between belt-placing plates and fixed by a paper-pressing plate; the wrapping tape passes through a tension sensor after being pulled out; a damping plate is arranged under the belt-placing plate and fixed by a connecting piece; an autorotation body is provided with a rotating bearing and is provided with the damping plate, the belt-placing plate and the paper-pressing plate in sequence; an electromagnetic coil and the autorotation body are directly fixed on a revolution body which is installed on a main shaft; a controller is connected with a sliding ring on the main shaft by a lead; a carbon brush is arranged at the end part of the sliding ring which is arranged on the main shaft; and the main shaft and a director current motor are connected by a synchronous belt wheel. The invention has stable work, and convenient operation, strong safety and reliability, can directly and automatically adjust the tension and the tension angle without stop and can also improve the production efficiency.

The invention discloses a multifunctional integrated circuit debugging system with a circuit welding function. The system comprises a control host computer, a circuit board test fixture, a test signal output and observation unit and a rapid circuit board welder, wherein the test signal output end of the circuit board test fixture is connected with the signal input end of the test signal output and observation unit; a power line of the rapid circuit board welder is connected with the control host computer. The system is simple in structure, convenient to operate, diversified and concentrated in function, simple and easy in a using process, reliable in connection, accurate in test and high in welding efficiency, safe reliability and welding quality, functions of apparatuses such as an adjustable regulated power supply, an oscilloscope and an electronic load meter are integrated, and the circuit board debugging efficiency is greatly improved.

The invention discloses a drilling and blasting machine which comprises a connecting base, a drilling machine, a static blasting machine, a fixing frame, a rotating mechanism, a lifting mechanism and a positioning mechanism, wherein one end of the rotating mechanism is connected with the connecting base and the other end of the rotating mechanism is connected with the lifting mechanism; the lifting mechanism is connected with the drilling machine; the drilling machine and the static blasting machine are arranged at the two ends of the fixing frame oppositely; the positioning mechanism is arranged at the bottom of the rotating mechanism. The drilling and blasting machine provided by the invention integrates the drilling machine with the static blasting machine; the drilling machine can drill quickly, can drill at various angles, especially for hard objects, such as rocks, mountains and the like, can drill at different positions and angles; the drilling and blasting machine is provided with the static blasting machine in the same set of hydraulic system, the static blasting machine is implanted after the surface is drilled, and crushing operation is finished silently and statically.

The invention discloses a redundant electric assisting steering system of an automobile driving vehicle and a control method of the redundant electric assisting steering system. The electric assistingsteering system comprises a first torque coupler, a second torque coupler, a first assisting system, a second assisting system, a main controller and an alarming device. A steering wheel is connectedwith the first torque coupler through a first intermediate shaft, after being connected in parallel, the first assisting system and the second assisting system are connected with the second torque coupler through output shafts, the second torque coupler is connected with the first torque coupler through a second intermediate shaft, and the first torque coupler is connected with a steering devicethrough a third intermediate shaft. The control method includes the two portions of a control method in an active steering manner and a control method in an assisting steering manner. The redundant electric assisting steering system of the automobile driving vehicle and the control method of the redundant electric assisting steering system have the beneficial effects that sufficient time can be reserved for a driver to take over the steering wheel, the driver is prompted through the alarming device, and the safety of a steering system is effectively guaranteed.

The invention discloses an anti-fake combination set which cannot be faked easily and is high in anti-fake performance. The anti-fake combination set comprises an anti-fake pen and an anti-fake label. The anti-fake pen is provided with a power switch, an ultraviolet transmitting port, a voice device and a data line interface. A control circuit, a storage battery and an ultraviolet photoelectric sensor are arranged in the anti-fake pen. The ultraviolet photoelectric sensor is installed in the ultraviolet transmitting port, and the power switch, the storage battery, the ultraviolet photoelectric sensor, the voice device and the data line interface are all connected with the control circuit. The anti-fake label comprises a bottom layer, an anti-fake layer and a protective layer. The anti-fake layer is arranged between the bottom layer and the protective layer. Lattice codes and encrypted images are contained in the anti-fake layer and are made with ultraviolet invisible ink. The anti-fake combination set has the advantages that a software system inside the anti-fake pen is updated initiatively, and the anti-fake combination set has two voice playing modes, can adjust the volume and perform dual anti-fake identification, has high anti-fake capacity, is wide in application range, safe and high in reliability and saves energy.

The invention relates to the field of coal chemical industry, in particular to a safety shutdown interlocking of a Texaco gasification furnace. The safety shutdown interlocking monitors and controls the operation process of the gasification furnace through inlet pressure of a coal paste pump, and adopts two-in-three logic control over the inlet pressure of the coal paste pump. The invention solves the accidents of peroxide of the gasification furnace and peroxide explosion caused by big coal paste viscosity, poor flowability and blockage of the inlet of the coal paste pump. The interlocking has high accuracy and flowability, and is safe and reliable.

The invention relates to a multifunctional integrated circuit debugging instrument provided with a circuit board quick welding apparatus. The multifunctional integrated circuit debugging instrument comprises a control host, a circuit board test fixture, a test signal outputting and observing unit and a circuit board quick welding apparatus. The test signal output terminal of the circuit board test fixture is connected with the signal input terminal of the test signal outputting and observing unit, and the power line of the circuit board quick welding apparatus is connected with the control host. The multifunctional integrated circuit debugging instrument is simple in structure and easy and simple to operate, functions of an adjustable stabilized-voltage supply, an oscilloscope and an electronic load meter are integrated, the multifunctional integrated circuit debugging instrument has various functions which are concentrated, and is simple and easy to operate during the usage process, and is reliable in connection and accurate in test, the circuit board debugging efficiency is greatly improved, and the multifunctional integrated circuit debugging instrument is high in welding efficiency, safe reliability and welding quality, and vulnerable parts such as a ceramic heating core can be replaced conveniently.

A GIS basin-type insulator distributed capacitor-based bus voltage measurement device disclosed by the present invention is characterized by taking a GIS basin-type insulator scattering capacitor as ahigh-voltage arm and a voltage divider connected with a GIS basin-type insulator as a low-voltage arm, and utilizing the capacitor voltage division principle to measure the voltage between a guide rod in a GIS and a GIS shell, thereby real-timely monitoring the operation voltage of the GIS. In addition, a voltage divider shell and the GIS shell are in equipotential connection, thereby being ableto effectively shield an interference electric field generated by the other electrified equipment of a transformer substation, and guaranteeing the measurement accuracy.

The invention provides a coal mine drilling blowout preventer comprising an orifice casing. A blowout preventing shutter is fixedly connected to the top of the orifice casing through flanges, and each of two ends of the blowout preventing shutter is connected with a wheel disc through a lead screw. The coal mine drilling blowout preventer is reasonable in structure, small in size, high in strength and high in safe reliability. By the adoption of two blowout preventing facilities, sealing property and blowout preventing effect are good, and sudden blowout of water or gas coal dusts can be prevented. The coal mine drilling blowout preventer using the flanges for connection is simple to operate and convenient to demount and maintain, and the upper and lower two blowout preventing facilities can be detached and used individually.