66results about How to "Realize real-time dynamic monitoring" patented technology

The invention discloses a gold nanotube based flexible stretchable electrode and a preparation method and application thereof. The preparation method comprises the following steps: performing hydrophilic treatment on a polydimethylsiloxane (PDMS) elastic film in advance and boosting uniform adhesion and fixing of a silver nanowire on the surface of an elastic base; with a disordered silver nanowire as a template, further preparing a gold nanotube with large length-diameter ratio through a replacement reaction of [Au(en)2]Cl3 and silver, thereby acquiring the gold nanotube based flexible stretchable electrode; connecting the electrode with an external electrode wire, thereby lastly acquiring an electrode used for testing. The gold nanotube based flexible stretchable electrode provided by the invention has the characteristics of high mechanical deformation resistance, excellent electrochemical property and excellent biocompatibility, can be used for monitoring mechanical sensitive cells in real time under true physiological conditions, and breaks through limitation to application of an existing nanometer material to a stretchable electrochemical transducer. The preparation method is simple and controllable and thus the electrode is easy to prepare.

A dynamic monitoring method and system for vehicle information of multiple unit trains mainly solve the problem of effectively combining real-time monitoring data of WTD equipment with the locomotiverunning time, running speed and mileage information and realizing the real-time monitoring and analysis of the WTD equipment in a running process of the multiple unit trains. The system comprises a vehicle-mounted information acquisition device, a ground server and a user terminal. The method comprises the following steps: enabling the vehicle-mounted information acquisition device of the system to acquire the running state information, vehicle door information, lifting bow information, vacuum circuit breaker (VCB) state information and equipment fault information of the WTD equipment and thetrain running speed, location and other information, performing data encryption, and then transmitting the data to the ground server, enabling the ground server to classify and store the received dataafter parsing and analyzing the data, enabling the user terminal to receive the WTD equipment monitoring data and train running data sent by the server through a railway office network, and displaying the monitoring data in real time in numerical and curve forms.

The invention provides a real-time dynamic measurement method for measuring radial clearance between a steam turbine rotor and a stator. The method is characterized in that the method comprises the steps of determining distance measurement devices for radial clearance, determining radial clearance between the rotor and the stator, determining the radial clearance between the rotor and the stator, determining the distance from an emitter to the surface of the rotor, calculating vertical offset amount of the rotor when the center of the rotor shifts, calculating horizontal offset amount of the rotor when the center of the rotor shifts, calculating the rotor offset amount at any position and calculating the radial clearance between the steam turbine rotor and the stator. The method can carry out dynamic measurement on the rotor labyrinth clearance and blade top labyrinth clearance of a running steam turbine accurately and quickly, thereby solving the problem that the measuring error of the radial clearance between the steam turbine rotor and the stator is large and the radial clearance cannot be measured online dynamically and accurately, ensuring safe and economical operation of the machine set and saving halt overhaul time.

The invention discloses an anti-rollover control system and control method for a tank truck tank body. The system comprises a tank body side inclination angle measuring unit, an alarm control unit, abrake control unit and an anti-rollover control unit. The method comprises the following steps of (1),constructing the anti-rollover control system for the tank truck tank body; (2), calculating the side inclination angle of the tank body through a displacement sensor; (3), calculating the rollover index of a tank truck, wherein the rollover index is a quasi-static rollover threshold value K; and(4), and when the rollover index monitored in real time is higher than the set threshold value, letting the alarm control unit and the brake control unit work; and when the rollover index monitored inreal time is lower than the set threshold value, releasing the alarm control unit and the brake control unit. According to the system and the method, the vehicle is monitored in real time through thesensor, so that the vehicle can be timely prevented from rollover.

The invention discloses an acidic etching instrument and an operation method thereof. The acidic etching instrument comprises a visualized core holder made of transparent materials, wherein the visualized core holder is of a hollow sealed structure, the upper end of the visualized core holder is provided with an upper through hole, the lower end of the visualized core holder is provided with a lower through hole, and the upper through hole and the lower through hole are both communicated with the inside of the visualized core holder. The acidic etching instrument and the operation method thereof disclosed by the invention have the beneficial effects that the instrument adopts a one-inch columnar core, therefore, an effect of easy processing is achieved, and actual reservoir cores can be adopted for carrying out experimental researches; the etching form of cores can be subjected to real-time tracking; and the whole acidic rock reaction process is reflected really, and a study on the change of annular fracture diverting capacity can be performed, thereby achieving the purpose of optimizing an acidizing fluid system and an acidizing process.

The invention relates to a subway environment monitoring system based on ZigBee and GPRS. A ZigBee terminal monitoring node collects environmental parameters in a subway tunnel, and the environmentalparameters are forwarded and transmitted to a coordinator through ZigBee wireless communication; the coordinator realizes conversion of a network protocol with a GPRS communication module; and finally, the data is transmitted to a remote monitoring center through the GPRS communication module, and the remote monitoring center can monitor on-site environment in real time, and can also send a command to control the whole system. The subway environment monitoring system is low in cost, high in flexibility and energy saving and environmental friendly, and is of great importance to ensure safe operation of the subway and improve management efficiency.

The present invention relates to a precast pile inclination real-time monitoring and alarm apparatus, which comprises a cabinet and a suspending hook, wherein a connection rod is fixed on the upper portion inside the cabinet, the lower portion is provided with a center shaft disc, a special-shaped rod is connected with the center shaft disc and the connection rod, can rotate along the center axis, and is bound with a heavy hammer through a heavy hammer line, a mercury tank is fixed on the special-shaped rod, and an electrical apparatus box is fixed on the mercury tank. According to the present invention, when a precast pile inclines, the heavy hammer moves toward an inclined vertical plane of the precast pile under a gravity effect to drive the mercury tank fixed on the special-shaped rod to move toward the vertical plane; when a mercury tank inclination angle is equal to or more than a designed angle alpha, long copper wires and short copper wires in the mercury tank immerse into mercury, such that an alarm circuit is turned on, and an alarm alarms so as to prompt inclination state generation; and a flashing light flashes, and a direction of the flashing light can be observed so as to know an inclination direction of the precast pile. The apparatus has the following characteristics that: a structure is simple, the apparatus can be installed on the outer portion of the precast pile so as to easily achieve project construction, precast pile construction can be real-timely monitored and guided, and the apparatus can be reused so as to save construction cost.

The invention provides a roadbed settlement monitoring device based on fiber grating technology, and the device comprises a fiber grating settlement meter, a steel tank sliding rail, a settling rod, asettling plate, a water filling tank, a fiber grating demodulator and terminal processing equipment, wherein the fiber grating settlement meter is moveably connected to the steel tank sliding rail, the steel tank slide rail is connected onto the settling rod, the settling plate is connected under the settling rod and is buried in soil body, the water filling tank is connected to the fiber gratingsettlement meter, the input end of the fiber grating demodulator is electrically connected to the fiber grating settlement meter, and the output end of the fiber grating demodulator is electrically connected to the terminal processing equipment. The roadbed settlement monitoring device provided by the invention has the advantages such as anti-electromagnetic interference, high sensitivity, high test precision and strong durability, and can perform real-time dynamic monitoring on roadbed settlement.

The invention discloses a synchronous light-electricity sensing method for a dark-field imaging-based solid nano channel. The synchronous light-electricity sensing method comprises the following steps: (1) preparing a semiconductor substrate film coated with a metal nano coating; (2) preparing a metal coated nano channel chip; (3) preparing a light-electricity detection micro pool; (4) imaging by utilizing a metal coated nano channel dark field; (5) recording ion current intensity by utilizing the metal coated nano channel; (6) adding a to-be-detected object for synchronous light-electricity detection; and (7) analyzing multi-channel data. According to the method, the process that a single to-be-detected nano object can pass through the nano channel can be monitored dynamically in real time without introducing dye groups and labeling so as to acquire dynamic information such as the size, the electrification situation, the light property, the chemical structure of the to-be-detected object; the situation of variation of each type of nature of the single to-be-detected object in the moving process can be observed from multiple dimensionalities; multi-channel signals on a large scale can be acquired synchronously; the detection velocity of a nano channel technique is increased; the application field is widened.

The invention discloses a greenhouse environment remote mobile monitoring system based on the Android platform. The system can remotely monitor the real-time physical information of a greenhouse environment and the greenhouse field video image information and realizes parameter adjustment and automatic/manual measurement and control mode switching in an automatic measurement and control process, which simplifies the work content of a user in a greenhouse environment remote monitoring process. The system comprises a greenhouse field device, a background server and a mobile terminal based on the Android system. The greenhouse field device comprises an environment monitoring wireless node, a video monitoring device, an environment control device, an environment control device monitoring node and a number of cameras. The video monitoring device is connected with the cameras. The environment control device monitoring node is connected with the environment control device. The mobile terminal communicates with the background server. The background server communicates with the environment monitoring wireless node, the video monitoring device and the environment control device monitoring node.

The invention discloses a crane beam structure safety monitoring device with a self-powered power supply, which comprises a crack sensor, a vibration power supply and an automatic alarm; the vibrationpower supply is fixed to a lower flange of a crane beam, and the output end of the vibration power supply is connected with the crack sensor and provides monitoring current; the crack sensor is arranged on the surface of the structure, and the output end of the crack sensor is electrically connected with the micro-current measuring instrument; and the automatic alarm judges the crack state basedon the current change threshold values in the metal foil and the conductive film and sends out an alarm signal. According to the invention, strain data can be monitored, the coverage area is large, and the position, length and width changes of cracks can be monitored; the vibration characteristics of the monitored object are utilized to provide current for the monitoring device, a workshop power supply system is not needed, installation is convenient, and long-term effective monitoring can be achieved.

The invention discloses a dynamic wireless monitoring and positioning method and system for a side slope rockfall disaster. The method comprises the following steps of installing a rockfall monitoringterminal on the surface of each potential rockfall in a side slope monitoring area; cruising in a slope monitoring area in the unmanned aerial vehicle cruising positioning system; in each cruise process, sending a wireless electromagnetic wave signal at set intervals; wherein each rockfall monitoring terminal receives a wireless electromagnetic wave signal; after one-round cruise of the unmannedaerial vehicle cruise positioning system is finished, enabling the information processing center to transmit the position and time of the signal according to the position and time of the unmanned aerial vehicle cruise positioning system in the cruise process; acquiring corresponding signal arrival time data of each rockfall monitoring terminal; and calculating the position of each rockfall monitoring terminal in the cruising process of the current round, judging whether the position of each rockfall monitoring terminal in the cruising process of the current round and the cruising process of the previous round is changed or not, and if the position is changed, sending out an early warning of a side slope rockfall disaster at the installation position of the rockfall monitoring terminal. Accurate positioning of falling rocks can be realized, and the cost is low.

The invention discloses a multi-parameter monitoring device and method for rock burst in a coal mine main roadway area. The device comprises a drilling stress monitoring device, a drilling deformationmonitoring device, a plurality of monitoring substations, a monitoring master station and a ground terminal. One end of the drilling stress monitoring device is arranged in a stress monitoring drilling hole of one side of the roadway, the other end of the drilling stress monitoring device is fixed at the side part of the roadway, and the two ends of the drilling stress monitoring device are connected through a liquid guide pipe. One end of the drilling deformation monitoring device is arranged in a deformation monitoring drilling hole of one side of the roadway, the other end of the drillingdeformation monitoring device is fixed at the side part of the roadway, and the two ends of the drilling deformation monitoring device are connected through a liquid guide pipe. The drilling stress and deformation monitoring devices monitor drilling stress and deformation signals in real time and transmit the signals to the nearby monitoring substations through a communication cable; each monitoring substation transmits monitoring signals to the monitoring master station through optical fibers, and the monitoring master station transmits all monitoring signals to the ground terminal through aring network. The device has the characteristics of flexibility, reliability, good monitoring effect, low cost and the like, and can be widely applied to prediction and early warning of rock burst inthe coal mine main roadway area.