100results about How to "With early warning function" patented technology

The invention discloses an anti-theft monitoring system for electric power facilities. The anti-theft monitoring system for the electric power facilities mainly comprises a outdoor monitoring host, a communication server, a data bank server, a WEB server, a multistage alarm receiving host, a user host and a cell phone terminal. A outdoor terminal is installed on a transformer pole and powered by a three-phase alternating current, and is connected with a various function detection module. The communication server, the data bank server and the WEB server are located at a monitoring center; the outdoor terminal monitors the environmental conditions and various operating parameters to guarantee the safety of the transformer, and transmits data with a communication server of the monitoring center through a GPRS (General Packet Radio Service) wireless network access way and keeps in touch with the communication server; the alarm receiving and management contact with a control center server through an internet access. The anti-theft monitoring system for electric power facilities can accurately analysis and judge the conditions of people approaching, facility vibration, facility slant and the current and voltage of the transformer, and is suitable for popularization and application.

The embodiment of the invention provides a system and a method for monitoring buried pipeline cathode protection. The system comprises a buried sensor, a terminal monitor and a server, wherein the terminal monitor is electrically connected with the buried sensor, so that pipeline potential of a buried pipeline can be acquired through the buried sensor; the terminal monitor is in communication with the server through a transmission network, so that the pipeline potential of the buried pipeline can be transmitted to the server through the transmission network; the server acquires and processes the pipeline potential of the buried pipeline through the transmission network. Therefore, the system and the method which are disclosed by the embodiment of the invention can improve the automation level of buried pipeline monitoring and have a prewarning function.

The invention discloses a lead ice monitoring method and system based on three-dimensional reconstruction. The lead ice monitoring method comprises the steps: 1, installing two cameras which are different in position and have a certain angle for imaging a lead to be monitored, obtaining a boundary contour of the lead to be monitored; 2, acquiring ice images of the lead to be monitored, shot under the ice condition; 3, processing the ice images of the two cameras, which are obtained from the same section of line from different angles, to ensure that image points of the same point on an ice line in two images show different vision positions, obtaining a geometrical relationship between the two image points according to a camera imaging principle, and further figuring out three-dimensional coordinates of this point; 4, reconstructing a three-dimensional mode of line icing through acquiring the data of the three-dimensional coordinates of a large quantity of characteristic points; and 5, comparing the three-dimensional mode of the line icing with the boundary contour of the lead to be monitored, and figuring out an ice thickness. The invention provides a lead ice monitoring method and system based on three-dimensional reconstruction, which are capable of carrying out remote real-time monitoring on ice.

The invention relates to a cooker and an anti-dry-burning control method and device thereof. The anti-dry-burning control method comprises the following steps that a cooking mode is obtained, and thecooking mode has a corresponding alarm temperature threshold value, anti-dry-burning temperature threshold value and temperature-rising speed threshold value; a first current temperature of the cookeris obtained, and the cooker is turned off when the first current temperature is greater than the anti-dry-burning temperature threshold value; when the cooking mode is water cooking and the first current temperature is less than the anti-dry-burning temperature threshold value, a current temperature-rising speed is obtained; and a second current temperature of the cooker is obtained when the current temperature-rising speed is greater than the temperature-rising speed threshold value, and when the second current temperature is greater than the alarm temperature threshold value, an alarm message is issued. The cooker and the anti-dry-burning control method and device thereof have the advantages that the food carbonization can be effectively reduced, pot pasting is reduced, the energy is saved, the safety is ensured, cookware is protected, and the environment is protected.

The invention relates to an electrical fire monitoring system which comprises an optical fiber temperature monitoring alarm device, a residual current type electrical fire monitoring detector and an alarm monitoring host. The system also comprises a data concentrator, and the data concentrator is used for respectively receiving monitoring information from the optical fiber temperature monitoring alarm device and the residual current type electrical fire monitoring detector and uploading the monitoring information to the alarm monitoring host, through the Ethernet or a local network. The alarm monitoring host communicates with a monitoring workstation in real time through the Ethernet or local network or a GPRS (General Packet Radio Service) wireless network. The optical fiber temperature monitoring alarm device and the residual current type electrical fire monitoring detector are respectively used for monitoring the temperature information of power equipment and the residual current information of each return circuit and transmitting the monitoring information to the data concentrator. The data concentrator uploads the monitoring information to the monitoring host through the Ethernet or local network after processing the monitoring information, and the monitoring host displays whether the power equipment is overheated and the residual current in the return circuit exceeds limits or not in real time and gives an early warning or alarm when an exception occurs.

The invention belongs to the leakage-proof field of a pipeline interface, in particular to a leakage-proof device and an installation method of a construction pipeline interface; aiming at the problemthat the existing leakage-proof device needs to be fixed by using a plurality of bolts or a welding method when being installed, which is troublesome and cannot meet the using needs of users, and nowthe following scheme is proposed; the leakage-proof device comprises two pipelines; one sides, close to each other, of the two pipelines are fixedly installed at one ends of joints; the other ends ofthe two joints contact with each other; the outer sides of the two pipelines are provided with the same connecting base; a connecting hole is formed in the connecting base; the two joints are locatedin the connecting hole; the outer sides of the two joints are fixedly sleeved with sealing rings, the two sealing rings are sealed and matched with the connecting hole; and the outer side of the twopipelines are fixedly sleeved with annular plates. The leakage-proof device provided by the invention is convenient for installation and fixation, saves installation time and energy, meanwhile, the device has an early warning function; and when occurring leakage, the leakage is convenient to process in time so as to avoid unnecessary loss.

The invention discloses a portable stroke early-warning monitor. The portable stroke early-warning monitor comprises a host, a flow velocity probe, a pressure probe, an electrocardio clip, a computer display screen and a printer, wherein artery blood flow signals are monitored and collected through the flow velocity probe and transmitted to the host; common carotid artery pressure signals are collected through the pressure probe and transmitted to the host; electrocardiosignals are collected through the electrocardio clip and transmitted to the host; the computer display screen is connected with the host, and a processing result obtained after host processing is displayed through the computer display screen; data are printed through the printer. Through the portable stroke early-warning monitor, stroke conditions and brain blood vessel function conditions can be monitored in real time, and the monitor has the early-warning function; the monitor has the effect of monitoring and evaluating prevention of strokes, and an effective tool for screening effective drugs for preventing strokes is provided; the monitor can monitor influences of the treatment process of taking or adjusting antihypertensive drugs on cerebral blood flow, cardiac functions and brain blood vessel compliance.

A thermally sprayed coating contact fatigue test machine capable of realizing failure early warning comprises a test device, a lubricating module, a loading module, a driving module and a signal acquisition module; in the test device, a lubricating fluid chamber sleeves a main shaft, the lower end of a test chamber is in interference fit with the end portion of the main shaft and is fixed to the main shaft, a lower sample is assembled in the test chamber, and the lower sample is in interference fit with the test chamber; an upper sample is in interference fit with an upper sample fixing plate, a roller is arranged between the upper sample and the lower sample, the upper sample fixing plate is directly acted by force load by the loading module, and the upper sample is indirectly acted by the upper sample fixing plate; and the signal acquisition module comprises an acoustic emission sensor, a data adapting card and a computer, the acoustic emission sensor is arranged in the upper sample fixing plate, and the acoustic emission sensor is in direct contact with the upper surface of the upper sample. The thermally sprayed coating contact fatigue test machine capable of realizing failure early warning, provided by the invention, can effectively detect the rolling fatigue degree.

The invention provides a harbor lifting machinery operation safety machine-mounted early warning system including a data acquisition layer, a data transmission layer and an industrial control computer; the industrial control computer includes a data acquisition interface, a data monitoring module and an early warning module; the data acquisition layer is used for acquiring a monitoring value of monitored harbor lifting machinery, and transmitting the monitoring value to the data acquisition interface of the industrial control computer through the data transmission layer; the data monitoring module is used for setting an early warning value for each monitoring parameter, and if one monitoring value exceeds the early warning value, alarming is carried out through the early warning module. The harbor lifting machinery operation safety machine-mounted early warning system can comprehensively and effectively monitor the harbor lifting machinery operation safety condition, and achieves effective long-term health monitoring on the harbor lifting machinery.

The invention provides an automatic telegraphy surgical robot system. The system comprises a robot, a doctor console, a DSA radiography machine, a high-pressure injector, vital sign monitoring equipment, a injection detector, a parameter monitor and an information processing device; the robot is used for achieving remote delivery of a guidewire catheter; the doctor console is used for controllingthe robot by receiving instruction of a doctor; the DSA radiography machine is used for generating radiography image information by emitting rays; the high-pressure injector is used for injecting a contrast agent; the vital sign monitoring equipment is used for monitoring vital sign information of a human body in an operation process; the injection detector is used for detecting injection parameters of the high-pressure injector; the parameter monitor is arranged corresponding to the robot so as to monitor working state parameters of the robot; and the information processing device is used forprocessing the radiography image information, the human body vital sign information, the injection parameters and the working state parameters to generate first display data, and the first display data is displayed on a doctor console in a partitioned mode. The automatic remote radiography operation robot system can achieve an unattended operation room, and the harm of radiation to doctors in theradiography operation is reduced to the minimum.

The invention relates to a warehouse management system, wherein the operation process of the warehouse management system particularly comprises steps of warehousing management, stock management and delivering-out-of-warehouse management. The stock management comprises six procedures, namely inventory management, storage location adjustment, allocation management, early-warning management, reporting management and cargo searching, wherein storage condition of materials in the warehouse can be effectively mastered. In delivering-out-of-warehouse management, a delivering-out-of-warehouse plan is compared with the stock, and if the stock is higher than the delivering-out-of-warehouse plan, a next-step operation is performed; and if the stock is lower than the delivering-out-of-warehouse plan, a delivering-out-of-warehouse operation is not performed. A delivering-out-of-warehouse bill is generated, and the delivering-out-of-warehouse operation is performed. The warehouse management system is advantageous in that ingenious design is realized; warehousing of an enterprise can be effectively facilitated, thereby facilitating management of different kinds of cargoes; furthermore allocation management and early-warning management are added based on original functions; allocation can be performed on the cargoes automatically; when the amount of stored cargo reduces to a certain amount, an early-warning function can be performed; high flexibility is realized; operation efficiency in warehouse management is improved; and operation cost of the enterprise is reduced.

The invention discloses a multi-functional respirator. The multi-functional respirator comprises a respirator body, ear bands, earmuffs, a Bluetooth headset, a nano-silver superfine fiber fabric layer, an infrared fabric layer, an antibacterial material layer, a negative oxygen ion layer, a comfortable fabric layer and a PM2.5 (Particle Matter 2.5) testing device, wherein the ear bands are arranged on the two sides of the respirator body; the earmuffs are arranged at the tail ends of the earmuffs; the earmuffs are earflaps of which the inner sides are provided with thermal insulation fur; the Bluetooth headset is arranged on the inner sides of the earmuffs and is fixedly arranged on the earmuffs through connecting lines; the PM2.5 testing device is arranged in the respirator body; the respirator body is an openable bag; the upper end of the bag can be opened; an opening of the bag of the respirator body is opened and closed by using any one mode that felt is matched with a plastic barb, a zipper and magnet attraction. The respirator has antibacterial, anti-haze, health-care, thermal insulation and early warning functions; the respirator is combined with the earmuffs, so the use by people is facilitated; the Bluetooth headset is arranged on the inner sides of the earmuffs, so the trouble brought to people in use of the headset by the earmuffs is solved.

The invention discloses an automobile engine temperature detection and cooling system, and relates to the technical field of automobile engines. The device comprises a control system and an automobileengine module, a refrigeration module, a vehicle-mounted power supply, an energy-saving circuit and an alarm system, The control system comprises a central controller, a converter, an amplifying circuit, a single-chip microcomputer, a data module and a control panel, the automobile engine module comprises an engine, a temperature sensor, the temperature sensor is arranged on the engine, the refrigeration module comprises a water storage tank, a refrigeration water tank, an engine water tank and a refrigeration device, the water storage tank comprises a water suction pump, an electromagnetic valve, an upper water level sensor and a lower water level sensor. The automobile engine temperature detection and cooling system has the advantages that the water level of each water tank can be detected, the safety line of the water level is guaranteed, automatic water adding is carried out when the water level is too low, the temperature is excessively high, automatic cooling and braking are carried out, the use of a driver is facilitated, the early warning function is achieved, more safety is achieved, and the requirements of the market are met.

The invention provides an intelligent monitoring system of the state of power distribution equipment. The system comprises a data collecting device, a remote monitoring terminal and an early warning device. The data collecting device and the early warning device are connected with the remote monitoring terminal. The data collecting device includes an aggregation node and a plurality of a sensor nodes; the sensor nodes collect power distribution equipment state monitoring data; and the aggregation node aggregates the power distribution equipment state monitoring data collected by all sensor nodes and sends the data to the remote monitoring terminal. The remote monitoring terminal analyzes the received power distribution equipment state monitoring data and outputs an alarm signal to the early warning device when the power distribution equipment state monitoring data are abnormal, so that the early warning device carries out alarming.

The invention relates to an online safety pre-warning method of power batteries for an electric car based on a cloud platform and a battery management system. According to online safety pre-warning method, based on information such as the current, voltage, temperature and internal resistance, collected by the battery management system, of monomer battery cells of the power batteries and GPS information and the like, collected by a vehicle controller, of a power battery pack, a related safety model is built through analyzing and predicting of big data by the cloud platform; and real-time onlinesafety pre-warning prompting is conducted according to the manually set limiting conditions, and main safety pre-warning includes the following three aspects of temperature anomaly, phenomena of liquid leaking, ignition, explosion and the like, and position anomaly and stealing. Compared with the prior art, in the online safety pre-warning method, cloud calculation based on the big data and artificial intelligence is organically combined with the cloud platform and the battery management system which are built on the electric car, the influence factors of the safety anomaly are fully excavated and analyzed, the online pre-warning and protection functions are achieved, practicability is high, development of a pre-warning technology is greatly promoted, and operation reliability is greatlyimproved.

Provided is a subsoil state monitoring device and method. The device and method belong to the field of housing construction, and have the following functions of (1) observing a subsoil state through a first observing pipe: opening a sealing cover, putting a miniature camera through a telegraph rod linked with the miniature camera into the first observing pipe, adjusting the position and angle of the camera through the telegraph rod, and observing the state of soil around the first observing pipe on a displayer; (2) warning through a second observing pipe: fixing and laying a sensor sheet on the outer wall of the second observing pipe from bottom to top, sending the humidity, temperature and other parameters around the sensor sheet to a warn displaying system through a data wire, and conducting automatic warning when a certain humidity value is detected; (3) monitoring the underground water level through the second observing pipe: opening the sealing cover, and measuring the underground water height with a laser distance meter through the pipe outlet. The first observing pipe and the second observing pipe are arranged next to each other, and combined for use. The subsoil state monitoring device belongs to preset equipment, has the function of warning and displaying, and can acquire subsoil information non-destructively. The subsoil state monitoring device and method have the advantages of being scientific and reasonable, easy to operate, low in cost and easy to popularize.

The invention relates to the technical field of bridges, in particular to a bridge with an early warning function, which includes a bridge main body, an arc-shaped tie rod is arranged on the bridge main body, and several piers are arranged on the bottom surface of the bridge main body; A strip-shaped mounting plate, a number of infrared transmitters and receivers are respectively arranged on the strip-shaped mounting plate; the plurality of infrared transmitters and receivers are designed at intervals; the middle part of the bottom surface of the strip-shaped mounting plate is provided with an infrared distance tester Strain sensors are installed at the joints of steel girders and beams of the main body of the bridge; it uses infrared rays to locate whether the ship is super high, and installs sensors on various parts of the bridge; it has real-time monitoring and monitoring to ensure the safety of the bridge and the role of early warning and prompting.

The invention discloses an ultrasonic-based landslide displacement and slip monitoring system and a measurement method thereof. The landslide displacement and slip monitoring system comprises an ultrasonic wave reflection device, a depression angle remote camera and an upper solar photovoltaic cell for supplying power to the ultrasonic wave reflection device and the depression angle remote camera,wherein the ultrasonic wave reflection device, the depression angle remote camera and the upper solar photovoltaic cell are mounted on the slope top; the slope bottom is equipped with an ultrasonic ranging device, an elevation remote camera and a signal receiving device; the system also comprises a pressure sensor in the potential landslide area of a mountain body and used for acquiring signals and transmitting the signals to a monitoring computer of the monitoring center, and an optical cable extending to the bottom of the slope laid from the top of the slope, wherein the optical cable is flat, and the outer layer of the optical cable is a fluorescent layer, and the fluorescent layer is exposed out of a landslide main cut-off arm to serve as an ultrasonic ranging device detection point when landslide occurs; and the optical cable is connected with the electric devices and transmits the overlooking landslide information image, the distance measuring information and the elevation landslide image to the monitoring computer of the monitoring center, and the monitoring computer controls an alarm to give out alarm information. Real-time camera shooting can be carried out on the landslide, an early warning function is achieved, and the vertical displacement and the horizontal displacement of the landslide are measured in real time after the landslide.

The invention discloses a temperature and humidity data monitoring system based on Internet of Things. The temperature and humidity data monitoring system is characterized by consisting of a temperature and humidity monitoring terminal and a monitoring service center connected with the temperature and humidity monitoring terminal through a wireless network. The temperature and humidity data monitoring system adopts the wireless network for signal transmission, is simple in structure and very low in cost and power consumption and can be remotely operated, and as wireless communication is not limited by distance, the temperature and humidity data monitoring system is suitable for the outdoors or other areas inconvenient for cable laying. The temperature and humidity data monitoring system can monitor a monitoring object, so that monitoring personnel can learn about the real-time monitoring result at the first moment, and accordingly, delay of monitoring by workers is avoided. Meanwhile, the temperature and humidity data monitoring system can realize permanent backup of temperature and humidity data, has an early-warning function, and is suitable for occasions with distant monitoring points, dispersed monitoring points and unattended operation.

The invention discloses an intelligent pre-warning system for tunnel water and mud outburst. The intelligent pre-warning system comprises a tunnel monitor and an intelligent pre-warning center, the tunnel monitor comprises a microprocessor, and the input end of the microprocessor is connected with a surrounding rock pressure sensor, a seepage water pressure sensor, a camera and a power source. Theoutput end of the microprocessor is connected with a first pre-warning device, the intelligent pre-warning center comprises a central processer, and the input end of the central processer is connected with a wireless gateway. The microprocessor is in two-way communication connection with a wireless communication module, the wireless communication module is in two-way communication connection withthe wireless gateway, and the output end of the central processer is connected with a mobile terminal and a second pre-warning device. The intelligent pre-warning system for tunnel water and mud outburst has the beneficial effects of simple structure, low cost and intelligence, the construction state of a tunnel and the potential probability of water and mud outburst are monitored wirelessly in real time, the pre-warning function is achieved, tunnel construction safety is ensured advantageously, workers and monitoring personnel can receive pre-warning signals simultaneously, and safer and more reliable effects are achieved.

The embodiment of the invention discloses a pre-warning method and a communications device, wherein, the pre-warning method includes that the communications device is used for detecting external environment; and the communications device collects the data detected; when the communications device determines that the data detected reaches the alarming condition, the alarming is sent out. The communications device includes a sensor unit for detecting the external environment; a chip unit controlled by a sensor for collecting the data detected by the sensor unit and for determining whether the data reaches the alarming condition; an alarm sending unit for sending alarm when the chip unit controlled by the sensor determines that the data reaches the alarming condition. The communications device of the embodiment of the invention can collect the data detected by detecting the external environment and determine whether the data detected reaches the alarming condition, when the alarming conditions are reached, the communications device is equipped with the pre-warning function.

The invention belongs to the technical field of wood composite materials, and provides a preparation method of a magnesium-aluminum layered double hydroxide / graphene oxide / wood-based composite material, which comprises the following steps: immersing wood in an aqueous solution containing magnesium salt, aluminum salt and urea, and carrying out a reaction under low-temperature hydrothermal conditions; and carrying out vacuum drying on the wood for 12 h at the temperature of 50 DEG C, thereby preparing the magnesium-aluminum layered double hydroxide modified wood; adding graphene oxide into water, and carrying out mechanical stirring and ultrasonic treatment to obtain a graphene oxide suspension; dropping the graphene oxide suspension on the surface of the wood, drying the wood at 50 DEG C for 3 hours, and repeating the operations for 3-6 times. The composite wood with fire early warning and flame retarding functions is prepared by adopting a low-temperature hydrothermal reaction combined with a dripping method, the process is simple, the energy consumption is low, the material structure is stable, and meanwhile, the synergistic flame retarding effect of graphene oxide and inorganicmetal is realized.

The invention relates to an automobile overspeed automatic reporting system. The automobile overspeed automatic reporting system comprises a microprocessor, a GPS module, an overspeed reminding module, a network server, a wireless receiving module and a wireless transmitting module, wherein the microprocessor is respectively connected with the GPS module, the overspeed reminding module, the wireless receiving module and the wireless transmitting module; the wireless transmitting module can be in data communication with the network server; the network server comprises an urban road speed limiting information database, an urban road position information database and an automobile overspeed data storage system; the microprocessor comprises a storage unit, a timing unit and an arithmetic unit; and the storage unit stores information of automobiles mounted by the automobile overspeed automatic reporting system and position information of various cities throughout China. The automobile overspeed automatic reporting system is good in reliability, high in response speed and good in timeliness, and has an early warning function; automobile overspeed risks can be avoided effectively, so that safety of life and property of a driver and pedestrians is greatly improved; and meanwhile, the management efficiency of traffic police to overspeed automobiles is improved.

The invention relates to an intelligent digital temperature and humidity monitoring system based on the Internet of Things. The intelligent digital temperature and humidity monitoring system based on the Internet of Things is characterized by comprising a temperature and humidity monitoring terminal, a wireless transmission network and a monitoring platform. The temperature and humidity monitoring terminal comprises a digital temperature and humidity collecting module, a radio frequency module nRF905, a single chip microcomputer P89LPC16 module, a sound-light alarm module and a monitoring host computer. The monitoring platform comprises a server. The digital temperature and humidity collecting module is connected with the single chip microcomputer P89LPC16 module, the single chip microcomputer P89LPC16 module is connected with the radio frequency module nRF905 and the sound-light alarm module, the temperature and humidity monitoring terminal is connected with the wireless transmission network, and the wireless transmission network is connected with the monitoring platform. The intelligent digital temperature and humidity monitoring system is reasonable in design, the temperature and the humidity can be monitored in the long distance and in the local in real time, and an alarm can be given in real time for abnormal situations.

The invention discloses a compressor applicable to a silane synthesizing process device under different vibration environments. A compressor body is included, and the bottom end of the compressor bodyis inserted into a base; a first shock absorbing spring is fixedly arranged between the bottom end of the compressor body and the base; an installing plate is fixedly arranged on the lower end side face of the compressor body; a wedge-shaped shock absorbing block is fixedly arranged between the installing plate and the inner wall of the base; the lower end side face of the compressor body is fixedly connected with the base through a bolt; the bolt is sleeved by a second shock absorbing spring; the positions of corners around the base are each provided with an installing hole; and the bottom face of the base is provided with a first shock absorbing gasket and a second shock absorbing gasket. According to the compressor applicable to the silane synthesizing process device under the different vibration environments, by arranging the first shock absorbing spring, the wedge-shaped shock absorbing block, a first annular ring, a second annular ring and a third annular ring, the problems thatthat a compressor for a traditional silane synthesizing process is difficult to adapt to use in different vibration environments, and the vibration preventing measure of the compressor is singular are solved.

The invention relates to an analysis and early warning method of a cold chain system. According to the analysis and early warning method of the cold chain system, real-time temperature data acquired by temperature collectors in a controlled area can be analyzed, the change of temperature of the controlled area in a period of time in the future can be estimated, a corresponding period of handling time is reserved by the system according to a set early warning scheme if estimated data are close to a predetermined precautionary value, early warning information (alarm information is transmitted in the modes including but not limited to wired networks, wireless networks and mobile communication networks) is sent to corresponding personnel until the personnel respond to the early warning information or the value of the temperature of the controlled area recovers to a set normal state, and as a result normal operating of the cold chain system is guaranteed.

The invention discloses an FRP (fiber reinforced plastic) tendon-bundle hybrid sling structure with a warning function. The FRP tendon-bundle hybrid sling structure comprises peripheral FRP tendons, an inner steel bundle and composite clamp anchors. The composite clamp anchors are used for anchoring the peripheral FRP tendons and the inner steel bundle one by one through clamp anchors; the inner steel bundle is disposed in the centers of the composite clamp anchors; the peripheral FRP tendons are evenly anchored on the periphery. While the inner steel bundle is snapped, the FRP tendons can bear the whole tensile load, thus ensuring safety for the structure; significant structural deformation occurs, a sufficient warning time is gained for the replacement of the sling. The peripheral FRP tendons are disposed around the sling structure and protect the inner steel bundle, and the life of the inner steel bundle is prolonged. The FRP tendon-bundle hybrid sling structure has the advantages that certain preparing time is provided for post-snapping maintenance of the inner steel bundle of the sling, safety of a bridge girder structure is improved, and the FRP tendon-bundle hybrid sling structure can be widely applied to suspender structures and the like for tied-arch bridges and suspension bridges.

The invention discloses an anti-theft alarm device of a distribution room, and belongs to the technical field of security and protection equipment. The anti-theft alarm device of the distribution room can give a timely and accurate and is convenient to use. According to the technical scheme, the anti-theft alarm device of the distribution room comprises a wireless anti-theft alarm lock, an invisible anti-theft alarm window, a camera, a security and protection controller and an audible and visual alarm, wherein the wireless anti-theft alarm lock, the invisible anti-theft alarm window and the camera are connected with the security and protection controller to carry out communication in a wireless communication mode, the security and protection controller is connected with the audible and visual alarm, and is used for controlling the audible and visual alarm to run, and the security and protection controller carries out wireless communication with a mobile phone through a built-in mobile phone communication module. The anti-theft alarm device of the distribution room is suitable for the electric power sector.

The invention discloses a measurement device for off tracking of a conveying belt of a belt conveyor and belongs to the technical field of automatic control over mines. The measurement device is mainly applied to the large belt conveyor and is characterized by directly displaying the specific value and direction of off tracking of the conveying belt. The defects that an off tracking switch sends signals only when the conveying belt deviates to the limit position and the sent signals are switch signals in the prior art are overcome. The device can directly display the specific value and direction of off tracking of the conveying belt through an intelligent meter, an operator on site can clearly know the specific condition of off tracking of the conveying belt through the measurement device, the early warning effect is achieved, and the measurement device is an upgraded and updated product of the off tracking switch.

The invention discloses a natural gas plant station operation management system. The system comprises a control center, a shift exchange management module for data transmission with the control center, a patrol management module, a maintenance management module and an alarm module; the control center includes a data storage module, a data processing module and a wireless communication module; theshift exchange management module includes a work login module, a work logout module and a shift exchange group photo taking module, the work login module uploads employee information and work login time of work login to the data storage module, the work logout module uploads employee information and logout time of work logout to the data storage module, and the shift exchange group photo taking module submits the group photo of the two employees of the shift exchange to the control center as a shift exchange certificate. The system can effectively carry out on-site management and control on work links such as work shift, inspection, maintenance and protection and the like in the operation and management of a plant station to ensure the safety and reliability of the operation of the naturalgas plant station.