33results about How to "Reduce the probability of safety hazards" patented technology

The invention discloses a three-phase non-isolation type photovoltaic grid-connected inverter and a photovoltaic power generation system. The three-phase non-isolation type photovoltaic grid-connected inverter comprises a three-phase full bridge converter and a filter circuit, wherein the three-phase full bridge converter is in parallel connection between two electrode plates of a solar cell panel array, the middle point of a three-phase full bridge converter is connected with the filter circuit, and the other end of the filter circuit is connected with a negative electrode plate of the solar cell panel array. By the adoption of the three-phase non-isolation type photovoltaic grid-connected inverter, the manufacturing cost can be reduced, and the reliability can be improved.

The embodiment of the invention provides an alarm processing realization method, an alarm processing realization system, a terminal and equipment. The system comprises a base station and the terminal, wherein the base station comprises a transmitting unit for transmitting preset alarm information to the terminal according to the position of the terminal; and the terminal comprises a receiving unit and a processing unit for performing alarm processing according to the received alarm information. The embodiment of the invention realizes security alarm for an unmanned aerial vehicle, and the possibility of hidden safety dangers when the unmanned aerial vehicle is used can be reduced.

The invention provides an oil and gas well integrity monitoring and management system which comprises an on-site well integrity data monitoring device and a well integrity data processing and analyzing system connected to the Internet. The on-site well integrity data monitoring device monitors to obtain relevant data, through the well integrity data processing and analyzing system, the well fieldmonitoring data provided by the on-site well integrity data monitoring device is displayed, analyzed and fed in real time, well historical data is stored, inquired and analyzed, and the oil and gas leakage risk alarm is achieved based on analysis and judgment results. The visualization of the whole process of well integrity management can be achieved, an integrity file of each oil and gas well isformed, the risk of oil and gas leakage can be proactively identified, the oil and gas well safety risk warning is dynamically carried out in real time, and high pressure can be automatically releasedespecially for an sustained casing pressure well.

The invention provides a battery module, and a battery pack thermal management device and system, the battery module comprises: a plurality of battery packs, each battery pack comprising a plurality of battery cell units arranged in a staggered or parallel manner; the packaging structure comprises a shell assembly, and the shell assembly is used for packaging the battery pack in the axial direction of the battery pack; the heat conduction piece is arranged between the battery packs and comprises side faces and end faces, the side faces make contact with the outer walls of the battery packs, and the end faces are exposed out of the packaging structure and make contact with the outside, so that the battery packs conduct heat exchange with the outside through the heat conduction piece; wherein the heat conduction piece is of a hollow heat conduction structure in which a phase change material is packaged. The heat conduction piece in the battery module exchanges heat with the cooling device outside the battery module by packaging the phase change material, so that the heat conduction piece is isolated from an external heat transfer medium, the flow resistance of a main loop water channel can be effectively reduced, and meanwhile, the probability of potential safety hazards caused by flow leakage of the heat transfer medium is reduced.

The invention discloses a pier safety detection target detection system and belongs to the technical field of pier safety monitoring. The system comprises a bridge pier; the right outer wall of the bridge pier is provided with a detection device; the right outer wall of the detection device is provided with an angle detection module and a distance detection module; the angle detection module and the distance detection module are both in electrical output connection with a collection module used for collecting information; the collection module is in electrical output connection with a single-chip microcomputer used for analyzing and processing information; and the single-chip microcomputer is in electrical input connection with a timing module used for controlling data transmission interval time, a comparison module used for comparison and an input module used for inputting data. According to the device, the inclination degrees of piers and a distance between the piers are detected through the angle detection module and the distance detection module, and data information is remotely transmitted to the display module so as to be displayed; a worker can remotely know some conditionsof the piers in real time; and the use safety of the piers is improved.

The embodiment of the present invention discloses a registration control method and device, which relate to the communication field and are used to quickly realize the load balancing of each P-CSCF in the system when the P-CSCF recovers from a fault, so as to reduce some P-CSCF The probability of safety hazards caused by CSCF overload for a long time. The method provided by the embodiment of the present invention includes: detecting whether the P-CSCF recovers from the fault; receiving the registration request message sent by the user equipment UE at the first moment; after detecting that the P-CSCF has recovered from the fault, and the When the first moment is within the preset time period, determine the P-CSCF to be registered for the UE in the P-CSCF group including the P-CSCF, so that the load of each P-CSCF in the P-CSCF group Equalization: register the UE with the P-CSCF to be registered according to the registration request message. The embodiment of the present invention can be applied in IMS.

The invention provides a PID performance evaluation method, belonging to the field of automation control. The method comprises the step of obtaining the production data and data quality code of a control loop, processing the production data according to the data quality code to obtain a processed production data sequence, combined with a preset process model, obtaining an updated response time, obtaining a performance evaluation parameter corresponding to the control loop, and determining the performance level of the control loop according to the performance evaluation parameter. Through obtaining a variety of data including the measurement value, setting value and operation value of the control loop and constructing the process model for updating the response time in the control loop, the performance of the control loop is evaluated based on the obtained data, at the same time, the iterative updating of an evaluation standard is carried out based on the process model and the combination of a variety of data, compared with the prior art, the possibility of control performance deterioration caused by delayed manual maintenance can be reduced, and the probability of security risks of the control loop is reduced.

The invention discloses a damage detection system and a detection method for fast road traffic signs. The system includes a detection vehicle, on which a camera, an illumination device, an illumination sensor, a camera bracket, a phase identification device, a quadrupling frequency device, Industrial computer, counting device, data acquisition card, encoder and GPS device; detection methods include image acquisition, model training, Hough transform and image similarity calculation, capable of locating damaged traffic signs. The automatic traffic sign damage detection method combined with the detection vehicle greatly reduces manpower. At the same time, it plays a traffic sign maintenance role in areas where traffic sign detection is not scheduled, reducing the probability of safety hazards caused by traffic sign damage.

The embodiment of the present application provides a DC power supply circuit, its voltage fluctuation processing method, device and controller, which relate to the field of electric power technology, by monitoring the input voltage of the electric load in the DC power supply circuit; The power supply in the DC power supply circuit is used to avoid the inrush current that may be generated when the input voltage of the electrical load rises again after a sharp drop, thereby reducing the probability of various safety hazards caused by the inrush current.

The invention discloses a reverse hanging type power roller way system, and belongs to the field of transportation equipment, the reverse hanging type power roller way system comprises a support, a crawler belt is mounted on the inner bottom surface of the support, transverse plates are fixedly connected between the side walls of the support, rollers are rotatably connected between the transverse plates, a motor is mounted on the side walls of the transverse plates, a transmission shaft is fixedly connected to the output end of the motor, and the transmission shaft is fixedly connected to the output end of the motor. A clamping strip is fixedly connected to the outer surface of the transmission shaft, an emergency stop mechanism is installed on the outer surface of the transmission shaft and comprises a second clamping column, a rotating shaft is fixedly connected into the second clamping column in a sleeved mode, a driving gear is fixedly connected to the outer surface of the rotating shaft in a sleeved mode, and a chain is connected to the side wall of the driving gear in an engaged mode. The power roller way system can transfer articles in a diversified mode, the situation that the articles are transported only from the positions above the rollers is avoided, the transportation efficiency is improved, transmission energy can be fully utilized, the system can be braked in time, and the probability of potential safety hazards is reduced.

The invention discloses a bridge pier safety detection target detection system in the technical field of bridge pier safety monitoring. The uniform electrical output of the distance detection module is connected to the collection module for collecting information, the electrical output of the collection module is connected to the single-chip microcomputer for analyzing and processing information, and the electrical input of the single-chip microcomputer is respectively connected to the timing module for controlling the transmission data interval time Compared with the comparison module and the input module used to input data, the angle detection module and the distance detection module are used in the device to detect the inclination degree of the bridge piers and the distance between the bridge piers, and remotely transmit the data information to the display module for display, which is convenient The staff can remotely understand some conditions of the bridge pier in real time, increasing the safety of the use of the bridge pier.

The invention discloses a fire distributor and a gas cooker equipped with the same. The fire distributor comprises a shell body and one or more fire distribution components, wherein a fire distribution cavity is defined in the shell body; the shell body is equipped with an air inlet and one or more air outlets; the air inlet and the air outlets communicate with the fire distribution cavity; the fire distribution components are arranged in the air outlets in a sleeving manner; both ends of the fire distribution components penetrate through the air outlets and extend out of the shell body; the outer wall surfaces of the fire distribution components and the inner wall surfaces of the air outlets are spaced so as to define ring-shaped banded fire holes which surround the fire distribution components; and secondary air supplement channels which axially penetrate through the fire distribution components along the fire holes are defined in the fire distribution components and positioned in the fire holes. According to the fire distributor disclosed by the embodiment of the invention, the tempering phenomenon can be reduced, the sufficient combustion of gas can be achieved, and the combustion efficiency can be improved.

The invention discloses an automatic steering platform for a workshop carrying vehicle. The automatic steering platform for the workshop carrying vehicle comprises a coupler, and further comprises a bearing platform and a driving mechanism which are respectively connected with two ends of the coupler, wherein a steering rail is arranged on one side, back on to the driving mechanism, of the bearingplatform, a brake mechanism and a limit mechanism are further arranged on the bearing platform, the brake mechanism is located on the side face, where the steering rail is located, of the bearing platform, the limit mechanism is used for limiting speed of the workshop carrying vehicle when the workshop carrying vehicle runs out of the steering rail, and the driving mechanism drives the bearing platform to rotate in a plane where the bearing platform is located around the axial direction of the coupler. According to the technical scheme, the steering rail on the bearing platform is connected with an external rail so as to enable the workshop carrying vehicle to run to the steering rail through the external rail and locate the workshop carrying vehicle on the bearing platform, and the driving mechanism drives the bearing platform to rotate, and changes a forward path of the workshop carrying vehicle, thereby realizing free steering of the workshop carrying vehicle.

The invention provides a method, device, computer equipment and storage medium for determining conflicting rights. The method for determining the conflicting authority includes: obtaining historical access information of the target subject; parsing the historical access information to obtain multiple access targets, wherein the access target includes the access address and the page operation performed when accessing the access address; Several access targets are divided into a behavior track; judge whether the behavior track is a dangerous behavior track through the threat model; and when the behavior track is a dangerous behavior track, in the permission set of the target subject, determine that the permission corresponding to the dangerous behavior track is a conflicting permission. Through the present invention, the conflicting authority in the authority set can be determined, and the probability of security risks in the authority set can be reduced.

The invention discloses a derailment beam system for a straddle type monorail rotary type bogie. The derailment beam system for the straddle type monorail rotary type bogie comprises a rail beam structure, an automatic lifting structure and a bogie rotational structure; the rail beam structure comprises a left rail beam (1) and a right rail beam (2) which are symmetrically arranged; and one end of the left rail beam (1) or the right rail beam (2) is provided with a bogie bracket (8); the automatic lifting structure comprises an X-shaped lifting device (5) and a platform surface (6) arranged at the top of the X-shaped lifting device (5); the bogie rotational structure comprises a rotary guide rail (7) and a derailment beam (3) arranged at the top of the platform surface (6); the X-shaped lifting device (5) is arranged in the gap; and a driving motor (501) is arranged in the X-shaped lifting device (5). The invention also discloses a dismounting and mounting method for the bogie. The derailment beam system not only can meet the requirements of dismounting and disengaging the rail beams of a full-automatic driving straddle type monorail bogie, but also improves the work efficiency and the safety of dismounting and mounting and overhauling the bogie.

The invention discloses a drilling machine for improving the drilling effect. The drilling machine comprises a working table, installing plates are symmetrically arranged at the middle position of thetop of the working table, hydraulic cylinders are arranged on the opposite sides of the two installing plates, the output ends of the hydraulic cylinders are provided with fixing assemblies, and eachfixing assembly comprises a supporting plate, an extending plate, a screw, an elastic gasket, a buffer spring and a limiting block, wherein the extending plate is installed at the top of the side, far away from the corresponding hydraulic cylinder, of the supporting plate, a threaded hole is formed in the extending plate and is provided with the screw, the screw penetrates the extending plate, extends to the lower portion of the extending plate and is provided with the elastic gasket, the buffer spring is arranged at the bottom of the elastic gasket, and the limiting block is arranged at theother end of the buffer spring. Compared with an existing like product, the drilling accuracy is high, the applicability is high, environmental protection is better achieved, and enterprise use and popularization are facilitated.

The invention discloses an intelligently controlled steaming cabinet, which comprises a steaming cabinet body. Three positioning rods are fixed at equal distances on both sides of the inner wall of the steaming cabinet body. The tops of the rods slide with the two sides of the bottom of the three support plates respectively, and the tops of the three support plates are all fixed with a protective frame. The gear rotates, so that the rotating gear drives the rack at the bottom end to mesh and slide, and the rack fixed in the groove on one side of the protective frame drives the protective frame to move along the positioning rod on the inner wall of the steamer body, so that the two sides of the top of the protective frame are opened. The second chute slides with the bottom end of the anti-steam plate hinged on the inner wall of the steaming cabinet to protect users, prevent staff from being scalded by high temperature as a whole, reduce potential safety hazards, and increase the practicability of intelligently controlled steaming cabinets.

The invention discloses a three-phase non-isolation type photovoltaic grid-connected inverter and a photovoltaic power generation system. The three-phase non-isolation type photovoltaic grid-connected inverter comprises a three-phase full bridge converter and a filter circuit, wherein the three-phase full bridge converter is in parallel connection between two electrode plates of a solar cell panel array, the middle point of a three-phase full bridge converter is connected with the filter circuit, and the other end of the filter circuit is connected with a negative electrode plate of the solar cell panel array. By the adoption of the three-phase non-isolation type photovoltaic grid-connected inverter, the manufacturing cost can be reduced, and the reliability can be improved.

The present application provides a vibration detection method, device, server and computer storage medium for lifting equipment, by acquiring video data including the lifting equipment; analyzing and processing the video data to obtain the vibration data of the lifting equipment; according to The vibration data of the lifting equipment determines whether the lifting equipment is working abnormally; if so, an emergency prompt message is generated and sent to the maintenance terminal. Using a variety of algorithms to process video data can reduce the burden of manual inspection, and can detect lifting equipment in real time, and predict possible failures of lifting equipment in time, greatly reducing the probability of safety hazards caused by failure of lifting equipment.

The present invention relates to the technical field of inkjet printing of circuit boards, in particular to a double-sided inkjet printing machine for circuit boards, which includes a printing body and a sheet material conveying mechanism assembly. The printing body includes a first printing part, a printing dolly and the second printing section, the printing dolly is located between the first printing section and the second printing section, the first printing section transports the circuit board to the printing trolley, and the printing trolley After inkjet printing is performed on the first side of the circuit board, the sheet material conveying mechanism assembly moves the circuit board at the first printing section to the second printing section and turns the circuit board over during the transfer process. The first surface of the circuit board is located on the second printing section, and the second printing section transports the circuit board to the printing trolley, and the inkjet printing is performed on the second surface of the circuit board by the printing trolley. The present invention also relates to a method for double-sided jet printing of a circuit board, which adopts the above-mentioned integrated machine for double-sided jet printing of a circuit board.

The invention discloses an engine assembly stand which comprises a base and a rotary table, wherein the rotary table is rotationally arranged on the base, the engine assembly stand further comprises a cam, a sliding column and a concave and convex part, wherein the cam is rotationally connected to the rotary table, the concave and convex part is arranged on the base, the sliding column is glidingly connected to the rotary table, the bottom end of the sliding column is connected to the concave and convex surface of the concave and convex part, the top end of the sliding column is a wedge, and the slope of the wedge abuts against the cam; on the turning trip of the cam, the cam has a position with one top end protruding out of the working surface of the rotary table and a position with one top end not protruding out of the working surface of the rotary table. According to the engine assembly stand, when the rotary table rotates on the base, the sliding column slides back and forth on the concave and convex surface, rising and lowering of the sliding column drive the cam to rotate so that the cam can or cannot protrude out of the rotary table, therefore, blocking and feeding work is finished, the structure is in sole mechanical transmission, and the probability of potential safety hazards caused by electrical accidents is reduced.