140results about How to "The monitoring results are accurate and reliable" patented technology

The invention provides a portable device, system and method for monitoring physical condition. The device comprises: a master controller, a chemical biosensor disposed close to the surface side of a subject, and a display element; the chemical biosensor detects physiological and biochemical data of the body of the subject and transmits the data to the master controller; the master controller receives the physiological and biochemical data, determines internal water condition and physical fatigue degree of the subject according to the physiological and biochemical data, and transmits the internal water condition and physical fatigue degree to the display element; the display element receives and displays the physiological and biochemical data as well as the internal water condition and physical fatigue degree. In an embodiment of the invention, the internal physiological and biochemical data of the subject is detected using the chemical biosensor by chemical means so as to monitor internal water and physical fatigue degree, it is possible to accurately indicate the current physical condition of the subject and prevent the physical health of a sporter from being harmed due to untimely water supple and untimely fatigue relief.

The invention relates to the technical field of oil production engineering test in the oil field, in particular to a system and a method for monitoring a cross-hole electromagnetic transient. The method comprises the steps as follows: placing an ejector pipe column in the corresponding destination section layer of a signal emission well, and connecting the ejector pipe column with a ground instrument by using a cable; placing a receiver pipe column in the corresponding destination section layer of a signal receiving well, and connecting the receiver pipe column with the ground instrument by using the cable; controlling the ejector pipe column to emit an electromagnetic transient signal by the ground instrument, receiving a corresponding stratic secondary field signal generated by the electromagnetic transient signal by the receiver pipe column, and recording and transmitting the signal to a data processing system of the ground instrument for analysis by the receiver pipe column; and monitoring the flowing situation of a fluid in deep stratum through tomography obtained according to measurement results, and generating a formation resistivity profile map by integrating the characteristics of electromagnetic induction and tomography so as to make accurate positioning analysis on an oil storage layer. The method has the advantages of flexibility, low cost and high efficiency.

The invention discloses a temperature drift self-correction method of a sea radioactivity measurement sensor, and a sensor. A temperature-sensitive element is additionally arranged on the sensor, the temperature of the sensor is detected through the temperature-sensitive element, the amplification gain of the sensor is automatically adjusted according to temperature change of the sensor, and amplitude of pulse voltages generated by the sensor is adjusted to the amplitude of pulse voltages generated when the sensor measures the same radionuclide at a reference temperature, such that peak drift of gamma energy spectrum data generated by the sensor can be automatically corrected and a more accurate detection result can be obtained. By using the sensor provided by the invention, the activity of such radionuclide as seawater, seabed sediment, marine organisms and the like in a sea environment can be automatically and continuously monitored for long time and a stable reliable monitoring result can also be obtained; and the method and the sensor can also be suitable for various sea automatic monitoring platforms and can be promoted and applied to the radioactivity monitoring work process of other water body environments.

The invention belongs to the technical field of steel reinforcement corrosion monitoring, and relates to a method for optical fiber sensing monitoring of steel reinforcement corrosion. The method comprises the following steps: making an optical fiber sensing monitoring device, and monitoring the steel reinforcement corrosion condition. A strain measuring grating and a temperature compensation grating are laid in the same step manner, the optical fiber sensor monitoring device and a monitored steel reinforcement are simultaneously poured in a concrete structure to avoid external interference and damages to a corresponding variable fin, the step-shaped optical fiber sensor monitoring device can monitor the corrosion condition of the steel reinforcement with different depths in the concrete structure, the corrosion time and the corrosion degree of the steel reinforcement with different depths are analyzed to know the corrosion time and the corrosion degree of a steel reinforcement to be monitored in the reinforced concrete structure, and bolts with different lengths are selected to control the inclination of the optical fiber sensing monitoring device to realize the real-time and long-term online monitoring of the steel reinforcement corrosion in the concrete structure with different protection layer thicknesses. The method has the advantages of enlargement of the application range, scientific and reliable principle, and accurate and reliable monitoring result.

The invention discloses an audio signal based wind power blade damage monitoring method and monitoring system. Audio signals sent by blades of wind driven generators in a wind power plant are circularly collected in the operation process, characteristic values of the audio signals are calculated, change of each unit audio signal characteristic value is analyzed, change of blade states is judged according to the change condition of the characteristic values, and a warning signal is sent for possible damage to remind a worker to perform further check, so that damage and defect of the blades are timely found in the early occurrence and development period, repairing measures are taken, the operation quality of the blades is improved, and meanwhile, major accidents such as blade breaking and falling and the like are prevented. The monitoring system comprises an omnidirectional microphone, a directional microphone, a collection amplification circuit, a conditioning circuit, an A/D conversion circuit, a connector, a data acquisition card and a computer. The monitoring system takes the irreversibility of blade damage as work foundation, so that the result is accurate, and the reliability is high.

The embodiment of the invention provides an online monitoring and early warning system for the galloping of a power transmission line, and the system comprises a galloping monitoring device, a micro-meteorological monitoring device, a camera device, a monitoring base station, and monitoring center equipment. The monitoring base station transmits the meteorological information collected by the micro-meteorological monitoring device, the motion data collected by the galloping monitoring device and the image information collected by the camera device to the monitoring center equipment. The monitoring center equipment judges whether an environment can cause the galloping of the power transmission line or not according to the meteorological information, and calculates the motion track of the power transmission line according to the motion data. When the environment can cause the galloping of the power transmission line, the early warning operation is started, and the galloping degree of thepower transmission line is determined through the comparison of the motion track and the image information. The system can achieve the automatic judgment of whether a meteorological environment can cause the galloping of the power transmission line or not, can achieve the early warning timely, and determines the galloping condition through the comparison of the motion track and the image information. The monitoring result is more reliable.

The invention relates to the field of medical instruments, and provides an airbag pressure management device. The device comprises an airbag interface and an inflation interface which are communicated through a connecting pipe; the inflation interface and an inflation device can be connected in an on-off cooperation mode, and the airbag interface and an airbag inflation valve can be connected in an on-off cooperation mode; the connecting pipe is provided with a pressure monitoring module. Due to the fact that the airbag interface and the inflation interface of the device both can achieve an on-off function on the condition that it is guaranteed that an airbag does no leak air in the state that the airbag inflation valve and the inflation device are connected, the device not only can monitor the pressure of the airbag and supplement air at any time but also can ensure leakproofness of the device in the monitoring and air supplementing process, the monitoring process is simple and efficient, and the air leakage phenomenon cannot occur; the pressure monitoring module can adopt parts such as a pressure sensor, and therefore a more accurate and more reliable monitoring result is achieved.

The invention relates to a self-reaction force type reservoir landslide model test device and test method. The device comprises a model groove, wherein a slide bed with the upper surface being inclined is arranged at the bottom of the model groove; the rear end of the slide bed is higher than the front end; a slip mass is arranged along the inclined surface on the slide bed; a water storage space is formed above the slide bed in the model groove; a water feeding pipe and a water draining pipe which are communicated with the water storage space are respectively arranged on the side wall of the model groove; a support component and a counterforce component are arranged along the inclined surface of the slide bed on the rear end face of the model groove in the form of backward stretching; a loading component is arranged on the support component; the loading component is clamped between the rear end face of the slip mass and the rear end of the counterforce component; the counterforce component is capable of pushing the slip mass to downwards slide along the inclined surface on the slide bed. According to the invention, the water feeding pipe and the water draining pipe are utilized to adjust the water level in the water storage space so as to simulate the practical running of reservoir; the loading component is utilized to apply force to the slip mass so as to simulate the whole process of the landslide evolution; the structure is compact and the operation is convenient.

Embodiments of the invention provide a system and method for monitoring fuel management of a vehicle, and an agricultural vehicle. The system for monitoring fuel management of a vehicle comprises a fuel sensor for acquiring oil quantity information of the vehicle and transmitting the information to a control module; and the control module is in signal connection with the engine of the vehicle andthe fuel sensor, for acquiring an operating characteristic signal of the vehicle, determining the working condition of the vehicle according to the operating characteristic signal of the vehicle, andanalyzing the fuel change of the vehicle by the oil quantity information correspondingly acquired from the fuel sensor according to different working conditions. The above technical solution fully considers the problem that part of the vehicle's motion and control signals cannot be collected when the vehicle's total power is off, and immediately acquires and records the current oil quantity information during the vehicle's operating characteristic signal, thereby avoiding the inability to acquire the oil quantity information of the vehicle after the vehicle's total power supply is turned off,and making the performance of the monitoring system more stable and the monitoring results more accurate and reliable.

The invention discloses an elevator. The elevator comprises a traction system, a guide system, a door system, a car, a weight balance system, an electric traction system, an electric control system and a safety protection system, and is characterized in that the safety protection system comprises a speed-limiting brake device, a rope breakage monitoring device and a slip monitoring device, whereinthe speed-limiting brake device is used for realizing the braking of a brake module when the descending speed of the car is too fast; the rope breakage monitoring device is used for detecting the breakage of a hoisting rope and realizing the braking of the brake module; and the slip monitoring device is used for detecting whether a slipping area exists in an elevator shaft guide rail or not. According to the speed-limiting brake device of a safety protection type elevator, when the descending speed of the car is too high, the brake module can be rapidly controlled to conduct brake operation through a speed-limiting trigger module, and the operation speed is high; and when a friction wheel encounters an area with oil stains on the elevator shaft guide rail, the slip monitoring device carries out rapid detection, so that the monitoring result of the equipment is more reliable.

The embodiment of the invention provides a method, device and system for water level monitoring and a method, device and system for drainage control. The method for the drainage control comprises the steps that real water level information obtained by a single-chip microcomputer is acquired; the real water level information is the water level information which is sent by a water level sensor and received by the single-chip microcomputer; all the received water level information is sequenced according to a size order of water level values when the water level information of a preset quantity is received; a middle value is worked out and taken as the real water level information; whether the water level values in the real water level information are larger than a preset threshold value is determined; and a water suction pump is controlled to drain away water when the water level value exceeds the preset threshold value.

The invention discloses an on-line leakage intelligent monitoring system based on multi-parameter monitoring and a monitoring method. The monitoring system includes a front-end leakage detection connecting device installed on a monitored device and a rear leakage monitoring device connected with the front-end leakage detection connecting device, the front-end leakage detection connecting device includes a plurality of leakage detection connecting pipes and a first connecting joint, a plurality of monitoring holes are arranged in the monitored device, each monitoring hole is connected with an inlet of one leakage detection connecting pipe, the rear leakage monitoring device includes a pressure monitoring device, a gas monitoring device, an acid-base value monitoring device, a data acquisition instrument, a master control device and a leakage alarm device, The monitoring method includes steps of monitoring project selection, alarm threshold setting, monitoring setting, and online leakage monitoring. The on-line leakage intelligent monitoring system is reasonable in design, simple in use, operation, and connection, and good in use effect, and can monitor the leakage conditions of the monitored device in real time online, the monitoring manner is flexible, the monitoring result is reliable, and the later query is simple.

The present invention discloses a drilling downhole anomaly monitoring device. The device comprises: a data acquisition module for acquiring pre-drilling data and mid-drilling data of drilling; a pre-drilling anomaly prediction module for analyzing and obtaining potential anomaly distribution well sections and anomaly symptomatic parameters according to the pre-drilling data; and a mid-drilling anomaly monitoring module for monitoring whether the current drilling well section belongs to the potential anomaly distribution well sections or not according to the mid-drilling data, analyzing anomaly symptomatic parameters of the current drilling well section according to the mid-drilling data if the current drilling well section belongs to the potential anomaly distribution well sections, and determining whether the distribution well section is abnormal or not according to analysis results. According to the device, the whole production process of the drilling can be reflected more comprehensively and accurately, more accurate and reliable monitoring results can be obtained, so that alarm or warning can be ensured to give out in an early stage when drilling downhole anomaly generates, losses are maximumly reduced, and the device has an important significance to prevent and control generation of the drilling downhole anomaly.

The invention discloses a ground surface collapse monitoring method, an induction ring and a magnetic sensor are sequentially hoisted in a monitoring cave, after a ground surface collapse disaster appears, the monitoring cave is damaged, the induction ring loses supporting and falls off, in the falling process, a permanent magnet arranged on the induction ring overlaps a detection area of the magnetic sensor, and after the magnetic sensor induces the falling motion of the induction ring, a user can know that the ground surface collapse disaster occurs already. The invention further provides a ground surface collapse monitoring device which can achieve the monitoring method. The ground surface collapse monitoring device and method have the advantages that needed hardware is simple, the device is convenient to arrange, data processing is easy and convenient, and monitoring results are accurate and reliable.

In the Beidou monitoring process, INS equipment is added to carry out deep combination (ambiguity fixation) and loose combination (adaptive Kalman filtering) on data, deformation judgment of a monitored object is carried out by utilizing INS monitoring quantity, and ambiguity verification is carried out by directly adopting an ambiguity fixation result of a previous epoch under the condition thatdeformation does not occur; therefore, the ambiguity is kept, the ambiguity resolving process in a conventional algorithm is reduced, and system resources are saved. For the condition that the INS equipment judges that deformation occurs, initial calculation of Beidou ambiguity is performed by using the monitoring result of the INS equipment, the algorithm is simple, an ambiguity equation and a search space do not need to be constructed, and ambiguity fixation is performed again on the ambiguity which does not pass the verification by using the LAMBDA algorithm so as to ensure that the calculation result is correct; and the finally output Beidou result and the INS result are subjected to adaptive Kalman filtering algorithm fusion, so that the monitoring result is more stable and reliable.

The invention discloses an oil level state detection method and device of a transformer. The method includes the steps of separately obtaining infrared images and visible light images of internal insulating oil in the to-be-detected transformer at a to-be-detected time point; conducting image fusion on the obtained infrared images and visible light images to obtain corresponding fusion oil level images; conducting binarization processing on the obtained fusion oil level images, and obtaining an oil level line of the internal insulating oil of the to-be-detected transformer according to the fusion oil level images subjected to binarization processing; according to the obtained oil level line, judging the oil level state of the internal insulating oil of the to-be-detected transformer. The provided oil level state detection method achieves automatic monitoring of the oil level state of the transformer in real time according to the fusion oil level images, correspondingly a user can knowabout the oil level state of the transformer in real time, the manpower resource consumed for manual inspection is avoided, a monitoring result of the oil level state is accurate and reliable, and safe and stable running of a power system is guaranteed.

The invention discloses a device for temporary slope stability monitoring. The device comprises a fixed pole on the upper portion of a stable area of a slope, a fluorescent alarm board fixed on the fixed pole through an alarm board support, a pull-off device connected with the alarm board support, a first steel wire connected with the pull-off device, an alarm strap connected with the first steel wire, and a monitoring pole which is located on the lower portion of a potential slippery area of the slope and connected with the alarm strap. The device is low in cost, convenient to mount, free of manual maintenance in a short term, capable of timely displaying monitoring results, resistant to rain corrosion, and reusable. In addition, the zinc- and indium-coated wire is low in deformation caused by temperature influence, so that the monitoring results are more reliable. The device can better meet the requirement for temporary slope stability monitoring and is convenient to mount and use in a wide range.