126results about How to "Threats to personal safety" patented technology

The invention discloses a method for monitoring an internal short circuit of a battery cell employing three electrodes. The method comprises the steps as follows: a positive electrode lead-out plate, a negative electrode lead-out plate and a reference electrode lead-out plate are arranged; the reference electrode lead-out plate is made of sheet metal lithium; a power battery electrolyte is packaged through an electrolyte sealing film; a cylindrical battery packaging housing is packaged again outside the electrolyte; the positive electrode lead-out plate, the negative electrode lead-out plate and the reference electrode lead-out plate are electrically connected with a positive electrode installation plate, a negative electrode installation plate and a middle connection plate respectively; a voltage monitoring device is arranged outside the battery packaging housing and comprises a one-way conduction unit and a signal transmission circuit; and the one-way conduction unit and the signal transmission circuit are connected with each other in series between the negative electrode installation plate and the middle connection plate. A voltage change between the reference electrode lead-out plate and the negative electrode lead-out plate is timely detected through the reference electrode lead-out plate, so that a control system is timely reminded to take measures to the internal short circuit of a battery.

The invention discloses a teaching, training and examining system based on virtual simulation for the gas industry, which is applied to the gas industry, and a use method of the system. The teaching,training and examining system comprises a teaching block, a practical operation training block and an examining block, wherein the teaching block, the practical operation training block and the examining block comprise a model library, a question library and a theoretical value simulation library, the model library comprises a three-dimensional virtual scene, a virtual tool, a device and a system,a third person figure model and the like, and the teaching block and the practical operation training block are provided with a study reminding module. A network teaching, training and examining platform is constructed according to the virtual simulation system. Due to the arrangement of the system, the flexibility of teaching, practical operation training and examining of the gas industry is effectively improved, the cost is reduced, meanwhile, the training effect is improved, no threat is caused to the personal safety of an operator, the use is safe and reliable, and the extensibility is extremely strong. In addition, for the system, the real-time updating of data can be easily realized, the training content is the latest, and a guarantee is provided for the working competence of new workers.

The invention discloses a scaffold that is convenient to move, comprising a scaffold cross bar and a scaffold vertical bar arranged at both ends of the scaffold cross bar, the scaffold vertical bar is connected by a scaffold support bar and a support column connected with the scaffold cross bar, and the scaffold support bar Corresponding to the support column, there are several rows of height adjustment holes with no less than two height adjustment holes in each row, and they are fixed through the height adjustment holes through the fixing parts. The bottom of the support column is provided with a support base, and the bottom of the support base is provided with a retractable pulley connected by a fixed end, and an anti-tilt support bar is provided outside the support column. The invention has the characteristics of adjustable height, convenient movement and use, can prevent the scaffold from tilting, has high safety factor, and has a longer service life.

A flange catcher is an n-shaped body, and the upper end of the n-shaped body is connected with a lifting lug. Two columns with different lengths of the n-shaped body are steel columns, the lifting lug is vertically connected onto a steel plate surface of the n-shaped body, and a hole is arranged on the lifting lug. The catcher can also be an L-shaped body, and a hole is arranged on the L-shaped catcher. The L-shaped body mainly comprises a steel plate, and a short column of the L-shaped body is a steel column. During connection of an oil pipeline under the ocean, a flange of the oil pipeline under the ocean is stably located on the flange catcher, a diver conveniently guides an engineering ship crane underwater to hoist and butt the oil pipeline under the ocean, a flange face of the oil pipeline under the ocean is effectively protected from damage, operation time is saved, and working efficiency is improved. Besides, underwater working time is shortened for the diver, and safety factor of underwater operation and integral construction safety are improved for the diver.

The invention discloses a device and a method for diagnosing bolt looseness of a power transmission tower pole material connection node. The device for diagnosing bolt looseness of a power transmission tower pole material connection node comprises a strain data acquisition device, a wireless sensor network system, a bolt looseness diagnosis module and a diagnosis result display terminal. At leasttwo strain data acquisition devices are installed near node bolts of a rod material connection node of a power transmission tower, and are used for acquiring real-time strain response data at the rodmaterial connection node, transmitting the real-time strain response data to the bolt looseness diagnosis module through the wireless sensor network system, judging the bolt looseness failure condition through the bolt looseness diagnosis module, and finally a node bolt looseness failure diagnosis result is displayed through the diagnosis result display terminal. According to the invention, intelligent diagnosis of bolt loosening failure is realized, manual detection consuming a lot of manpower and material resources is avoided, and the problems of node bolt detection and operation maintenanceare effectively solved.

The invention discloses an automatic cutting device for producing and processing a plate material through a mold. The automatic cutting device comprises a first platen and a second platen, a dovetailgroove is formed in the middle position of the upper surface of the first platen, the upper end of the dovetail groove is provided with a second cylinder fixed to the upper end of the first platen, and one end of the second cylinder is connected with a clamping piece. Support frames provided with limiting grooves in the middle portions are fixed to the upper ends of the first platen and the secondplaten, linear electric cylinders are fixed to the side ends of the support frames, I-shaped bodies are fixed to the side ends of electric cylinder sliders, the upper ends of the I-shaped bodies arefixedly provided with cutting mechanisms. After cutting is completed, transverse positioning disappears, longitudinal positioning does not change, the plate material does not collapse, and the personal safety of an operator is not threatened; and meanwhile, when the width of the cut plate material needs to be changed, the position of a fastening nut is adjusted, the appropriate distance between acutting wheel and a clamping plate is obtained through measurement, the desired width of the plate material after cutting is obtained, and operation is convenient.

The invention provides a vehicle collision responding method applied to an electric or hybrid power vehicle. The method includes the steps that a potential collision target reported by vehicle-mounted radar and/or a vehicle-mounted camera and collision prejudgment information related to the potential collision target are obtained; based on the collision prejudgment information, whether the vehicle is about to collide with the potential collision target or not is prejudged; and if it is prejudged that the vehicle is about to collide with the potential collision target, the output current of a vehicle-mount power supply is reduced to a set safety value within preset time, wherein the preset time is shorter than collision remaining time. By the adoption of the method, the output current of the vehicle-mount power supply can be reduced to the set safety value in advance when it is prejudged that the vehicle is about to collide, and the traveling safety is improved.

The invention provides a flammable and explosive gas dangerous scene maneuverably equipped detection device used for emitting pulse laser to a space region where to-be-measured gas is located; continuously measuring to obtain a non absorption characteristic spectral line returning light intensity and an absorption characteristic spectral line returning light intensity; acquiring basic parameters of atmospheric environment scattering returning light characteristics; utilizing compensating parameters for compensating the absorption characteristic spectral line returning light intensity; and according to the non absorption characteristic spectral line returning light intensity and the compensated absorption characteristic spectral line returning light intensity, acquiring characteristics of the to-be-measured gas, and thus obtaining geographic distribution data. The broad-spectrum laser is used as a light source, the measurement of environmental parameters is not required, the gas types and the gas concentration are measured according to the gas spectral absorption characteristics, returning light scattering characteristics and absorption characteristics are organically separated, measurement is accurate, and a discrete characteristic gas returning light measurement technology is adopted.

The invention relates to traditional Chinese medicine producing pre-treatment equipment. The traditional Chinese medicine producing pre-treatment equipment comprises a bottom plate, a mounting rack, acutting-out device and a cleaning device. The mounting rack is mounted on the bottom plate; the cutting-out device and the cleaning device are mounted at the lower end of the mounting rack in sequence from left to right; the cutting-out device comprises a grabbing mechanism, a material placement box, a conveying mechanism, a cutting-out mechanism and a material push mechanism; and the cleaning device comprises a rotary delivery mechanism, a first cleaning mechanism, a second cleaning mechanism and a water pipe. By means of the traditional Chinese medicine producing pre-treatment equipment, the problems that the labor cost is high, the working efficiency is low, the working stability is poor, cleaning is not thorough, and the potential safety hazards exist in an existing rhizome-shaped traditional Chinese medicine pre-treatment process can be solved, the function of automatic pre-treatment for rhizome-shaped traditional Chinese medicine can be achieved, and the traditional Chinese medicine producing pre-treatment equipment has the advantages of being low in labor cost, high in working efficiency, good in stability, good in cleaning effect, low in potential safety hazard and the like.

The invention belongs to the technical field of artificial intelligence and particularly relates to a method and device capable of performing safety early warning for hearing-impaired persons. The method comprises steps that S1, sound signals propagated by surrounding objects are collected through taking a user as the center; S2, characteristics of the collected sound signals are extracted and matched with a known sound signal, and dangerous signals and categories of dangerous signal sources are determined; S3, the user and the dangerous signal sources are respectively positioned, and the position of the user and the danger sources are marked on the map; S4, the user is continuously alerted to the surrounding dangerous signal sources, and the map with the marked position information of theS3 is sent to the user. The method is advantaged in that the danger signals in the surrounding environment can be timely reported to the hearing-impaired persons, safety early warning to the hearingimpaired persons in a timely and effective manner can be performed, and personal safety of the hearing impaired persons can be prevented from being threatened by hearing impairment problems.

The invention discloses a non-contact type converter valve temperature on-line monitoring method and device. The method comprises the steps that a temperature sensor located in a high potential area collects temperature data on the surface of a converter valve radiator, the temperature data are converted into digital signals which are transmitted to a receiving device located in a low potential area through electromagnetic wave carrier waves, the receiving device restores the received digital signals to be digital temperature signals, and the converter valve temperature is obtained according to the restored digital temperature signals. No direct electrical contact exists between a transmitter-receiver set and the temperature sensor located in the high potential area, and safety is good; the temperature sensor is directly arranged on the surface of the converter valve radiator, and precision is high; the non-contact type converter valve temperature on-line monitoring method and device can be directly applied to an intelligent converter station, and on-line monitoring of the converter valve temperature is achieved.

The invention discloses an automobile maintenance bracket, the structure of which comprises: a new type limiting device, a movable plate, a main bracket, a lifting rod, a hydraulic roof, a support plate, a fixed bottom plate, an electric box, a mounting seat, a sliding plate, a baffle, a connection Plate, strong spring, limiting plate, the sliding plate is located on the outer side of the connecting plate and is an integrated structure with the connecting plate, the baffle is located on the upper surface of the sliding plate and is fixedly connected with the sliding plate, and the limiting plate is located on the upper surface of the connecting plate The right side is movably connected by loose-leaf, the strong spring is located on the upper surface of the connecting plate and is fixedly connected with the connecting plate, and the sliding plate is movably connected with the main bracket. The maintenance bracket can prevent the car from slipping backward during the maintenance process, so that the personal safety of the maintenance personnel will not be threatened.

The invention discloses a floating crane swing reducing device. The floating crane swing reducing device comprises a longitudinal damping mechanism and a transverse damping mechanism. The longitudinaldamping mechanism comprises a first bracket and at least two first electric cylinders. The two first electric cylinders are longitudinally arranged on the first bracket, a first rolling wheel is connected to a first push rod of each first electric cylinder, the first push rods stretch out and draw back in the longitudinal direction, and rolling wheel shafts of the first rolling wheels are transversely arranged. The transverse damping mechanism comprises a second bracket and a second electric cylinder. The second bracket is transversely erected on the two first electric cylinders. A second push rod of the second electric cylinder is connected with a second rolling wheel, the second push rod stretches out and draws back in the transverse direction, and a rolling wheel shaft of the second rolling wheel is longitudinally arranged. According to the floating crane swing reducing device, the time lag gain active servo swing reduction principle is utilized, the damping is continuously added to a swing object when a lifting hook or the lifted object is motivated by the shake of a ship to swing, and therefore the amplitude of vibration is effectively reduced, the lifted object in-position difficulty is reduced, the in-position efficiency is improved, the construction cost and the resource waste of the ship downtime in the window waiting period are reduced, and the floating crane swing reducing device has the high engineering utilization value.

The invention discloses an emergency refuge alarm-giving kiosk control system based on attended operation. The emergency refuge alarm-giving kiosk control system is characterized by comprising attended-operation emergency refuge alarm-giving kiosks, an area branch-center control system, a police server, an overall-center control system, an emergency refuge alarm-giving control server system, a management control system and a remote networking control management system; the control system supports large-scale networking, unified networking can be carried out on a certain area, and the use state of each kiosk body can be monitored through computers. Standard entry-exit buttons are arranged, and users can further press emergency button switches to open doors or remotely open the doors in emergency; due to triple insurances, it is guaranteed that the users can not be locked in the kiosk bodies. The intelligent voice system function, the remote door opening function and the remote locking function are achieved, on-site stopping and remote stopping of the emergency refuge alarm-giving kiosks can be achieved, and the rich alarm giving and recording functions can be achieved.

The invention discloses a forming die of an outdoor mutual inductor, and a casting fixing and sealing method of the outdoor mutual inductor. The forming die comprises an upper die and a lower die which are used for forming a die cavity, the upper die is provided with a casting hole connected with the die cavity and an air outlet, a die core is arranged in the die cavity, the upper end and the lower end of the die core are connected with the upper die and the lower die respectively, the upper end and the lower end of the die core are jointed into the upper groove of the upper die and the lower groove of the lower die respectively, and the part of the die core positioned in the die cavity is cylindrical in shape; and a group of fixed pillars for supporting mutual inductor coils is arranged in the die cavity surrounding the die core, the fixed pillars are fixedly connected with the lower die, and the upper end of each of the fixed pillars is provided with a stepped clamping platform for jointing the external edge and the lower edge of each of the mutual inductor coils. The forming die and the method improve the resin casting fixing and sealing efficiency of the outdoor mutual inductor, reduce the unit energy consumption and the defective index of the outdoor mutual inductor and improve the insulation degree of the outdoor mutual inductor.

The invention discloses a hidden type wiring manner based on a lift shaft frame. Wiring arrangement of three portions is carried out, and according to the first portion, a cavity of the lift shaft frame is used for enabling a cable of the low-voltage part to be hidden in; according to the second portion, a voltage conversion and control device is placed in a control cabinet, and cables of a high-voltage portion and a voltage conversion portion are fixed into the lift control cabinet; according to the third portion, a distributor plate distributes the cable in the cavity of the lift shaft frame. The manner has the beneficial effects that the cable is arranged in the cavity of the lift shaft frame, contact like friction of the cables and other components in a shaft and direct radiation of ultraviolet can be avoided, the service life of the cables is prolonged, and the cable use safety coefficient is improved; the voltage conversion and control device is used for controlling the transmission voltage of the cables in the lift shaft frame cavity, and the phenomenon that due to accidental damage of the cables, passenger personal safety is threatened is avoided; the distributor plate is adopted for power distribution, cable mounting efficiency is improved, and meanwhile, shaft cable standardization and methodization are carried out.

The invention discloses an electric traction locomotive operation overvoltage suppression control system and method. The system comprises a pantograph rising and falling overvoltage suppressor connected in series between a pantograph and a circuit breaker, a circuit breaker operation overvoltage suppressor connected in series between the circuit breaker and a main transformer, and a novel protection grounding device connected in series in a grounding cable between a carriage bottom bogie and a grounding carbon brush. When the circuit breaker acts, the circuit breaker operates an inductor in the overvoltage suppressor to be connected into a circuit, a train protection grounding system is directly grounded through a grounding cable, a train body resistor bears most overvoltage in the circuit, and the train body pantograph rising surge overvoltage is reduced. And the residual overvoltage is released through a grounding cable in the novel protection grounding device, so that the overvoltage of the vehicle body is greatly reduced. In the processes of pantograph rising and falling, neutral section passing, short circuit faults and the like, due to overvoltage generated by actions of a pantograph and a circuit breaker, weak current signal equipment damage and insulation breakdown caused by overvoltage operation are avoided.

The invention discloses a lock with double lock cylinders. The lock with the double lock cylinders comprises a lock body, lock cylinders which can be installed in the lock body and a lock pusher used for achieving opening and closing of the lock; the lock cylinders are composed of an external lock cylinder and an internal lock cylinder, one end of the lock pusher is installed on an internal lock cylinder rotary head on the internal lock cylinder in a matched mode, the other end of the lock pusher is installed on an external lock cylinder rotary head on the external lock cylinder in a matched mode, a pull-apart groove is formed in the portion, close to the external lock cylinder, of the lock body, a positioning hole is formed in the portion, close to the internal lock cylinder, of an inner component, a pin hole which is matched with the positioning hole is formed in the lock body, a positioning bead is contained in the pin hole, the positioning bead is fixed in the pin hole through a positioning bead upper bead, springs and bolts, the two sides of the lower end of the lock body are each provided with pin holes used for installing pin beads and pin springs, and bolts which are used for fastening the pin beads and the pin springs are installed on the ports of the pin holes. The lock with the double lock cylinders is reasonable in structure, and the protecting effect and safety performance of door locks are greatly improved.

The invention discloses a scaffold capable of conveying materials. The scaffold comprises a scaffold cross rod and scaffold vertical rods at two ends of the scaffold cross rod. Each scaffold vertical rod is formed by connecting a supporting column and a scaffold supporting rod connected with the scaffold cross rod, and each scaffold supporting rod and the corresponding supporting column are correspondingly provided with a plurality rows of height adjusting holes and are fixed through fixing parts penetrating the height adjusting holes, and at least two height adjusting holes are arranged in each row. A support base is arranged at the bottom of each supporting column, and an anti-tilting support rod is arranged on the outer side of each supporting column. The scaffold cross rod and the scaffold supporting rods are fixed through locking fasteners, two pulleys are arranged on the outer sides of the locking fasteners respectively and connected through a rope, and a material box is arranged on the rope. The scaffold is capable of conveying the materials, labor-saving, simple and convenient to operate, height-adjustable, capable of preventing scaffold tilting, high in safety coefficient and long in service life.

The invention relates to a convex manhole cover for an escape opening of a comprehensive pipe gallery, and belongs to the technical field of the comprehensive pipe gallery. The convex manhole cover includes a base and a cover plate hinged to the base and capable of being opened and closed. The cover plate is of a pyramid-shaped housing structure with multiple sides. The cover plate of the pyramid-shaped structure has the characteristics of the high middle and the low edge, debris is not prone to being accumulated on the cover plate, and the hidden danger that the cover plate is difficult to open from the inside of the comprehensive pipe gallery and an escape passage is blocked due to stacked items on the cover plate is eliminated.