36results about How to "Avoid safety hazards" patented technology

The invention discloses a safety authentication method and a safety authentication system for a wireless network. The system comprises a signal fingerprint monitoring and processing module and a wireless network access authentication module at an access point. The method comprises the following steps that: at a network access point, the signal fingerprint monitoring and processing module performsdown-conversion and digitized sampling on a detected steady-state communication signal and extracts the conventional signal characteristic and the spurious signal characteristic of the steady-state signal by a communication signal processing method; after a higher-dimension spurious signal characteristic is reduced and optimized, the conventional signal characteristic and the spurious characteristic are fused into a steady-state signal fingerprint; and a signal fingerprint matching and safety authentication module matches the monitored steady-state fingerprint of unknown communication equipment and provides a corresponding safety strategy service according to a recognition result by a network authentication protocol. The method and the system are used for performing safety authentication on wireless communication equipment and enhancing the safety of a wireless communication network in combination with a software authentication system and have the characteristics of high concealment, high stability and safe management.

The invention provides a safe juicer with multiple feeding ports. The juicer comprises a drive device, a juicing assembly and a safety assembly. The safe juicer is characterized in that the juicer further comprises at least two feeding ports with different calibers, wherein the juicing assembly comprises a feeding cup and a grinding cavity which is communicated with the feeding cup and located under the feeding cup, a grinding head is arranged in the grinding cavity, and the grinding head is in transmission connection with the drive device; the safety assembly comprises a protective cover, a pressing rod and a safety switch, the protective cover is used for covering the first feeding port of the feeding cup and hinged to the feeding cup, one end of the pressing rod is hinged to the protective cover, and the other end of the pressing rod can push the safety switch. According to safe juicer with the feeding ports, extremely high safety can be provided, so that safety hazards generated when users use the juicer are prevented; the users can select different feeding ports to conduct juicing according to sizes of different foods when the users use the juicer, which is fast and convenient, and the experience of the users is greatly improved.

The invention relates to the technical field of composite material forming, in particular to a composite material conical section shell forming mold and method. The composite material conical section shell forming mold comprises a mold body and a pressing plate; the mold body is a conical barrel, an opening in the bottom end of the mold body is turned over outwards to form a flange connecting section; the pressing plate comprises a flange pressing plate body and a side pressing plate body, the flange pressing plate body comprises a flange face pressing section and a supporting section, and the side pressing plate body is of an L-shaped structure; and after prepreg is laid on the surface of the mold body, the flange face pressing section covers the surface of the prepreg on the flange connecting section, the end part of the side pressing plate body is arranged on the supporting section, and the inner surface of the side pressing plate body is attached to the surface of the prepreg on the corner portion of the mold body. According to the composite material conical section shell forming mold and method, through the attached supporting design of the surface of the side pressing plate body and the surface of the flange pressing plate body, integral compaction operation can be carried out on the prepreg forming a flange structure, meanwhile, the side pressing plate body and the flange pressing plate body can move relatively due to the characteristic of the split structure, the prepreg can be fully compacted, and the problems of glue gathering, layering, pores and other defects after curing can be reduced.

The invention discloses an auxiliary tool guaranteeing linear machining performed by a carpenter. The auxiliary tool guaranteeing linear machining performed by the carpenter comprises a machining table which is provided with an electric lifting table; the table face of the electric lifting table is provided with two parallel grooves; each groove is internally provided with two suspended rollers; the highest point of the rollers is higher than the surface of the electric lifting table; the rollers are connected to the inner walls of the grooves through roller shafts; the electric lifting table is provided with a sliding plate; the bottom of the sliding plate is provided with two parallel sliding grooves; the two sliding grooves are right opposite to the two grooves correspondingly; the sliding grooves are matched with the rollers; and the machining table is further provided with an F-shaped hand screw clamp. The auxiliary tool guaranteeing linear machining performed by the carpenter aims at solving the problems that when the carpenter uses an electric drill to drill holes in the prior art, handholding is not stable, the hole drilling quality is affected, and potential safety hazards exist due to direct contact with the electric drill, and the purposes of reducing the potential safety hazards and meanwhile keeping straight hole drilling are achieved.

The invention relates to the field of special components for bearing or forming a workbench, in particular to a device platform capable of facilitating installation and maintenance and a use method thereof. The device platform capable of facilitating the installation and the maintenance comprises a building (1), and is characterized by further comprising a platform (2), a cover plate (6) and a hanging ring (7), wherein a top plate (3) and a support plate (4) are horizontally fixed on an outer wall surface (11) sequentially from the top down, a work hole (31) is formed in the top plate (3), thecover plate (6) is inserted into the hanging ring (7), and the cover plate (6) covers the work hole (31). The use method of the device platform capable of facilitating the installation and the maintenance is characterized by sequentially implementing following steps: 1) using a device; and 2) maintaining the device. The device platform capable of facilitating the installation and the maintenanceis simple in structure, convenient to manufacture, capable of facilitating the maintenance, and safe and reliable.

The invention relates to the technical field of track traffic tunnel ballast beds, in particular to a track traffic shield tunnel ballast bed connection reinforcing device and an application method thereof. The connection reinforcing device comprises a connecting rod and a connector, one end of the connecting rod is a hook part matched with a steel bar of a ballast bed, the other end of the connecting rod is connected with the connector, the connector can be fixedly connected with a hand hole of the shield tunnel segment, and reinforced connection between the ballast bed and the shield tunnel segment is achieved. The device has the advantages that reinforced connection between the track bed and the shield tunnel segment of the track traffic is achieved, and the connection performance and integrity between the track bed and the shield tunnel segment are improved on the basis that the tunnel segment structure is not damaged; a certain buffer adjustment amount can be formed between the ballast bed and the shield tunnel segment, the adaptability during operation is high, and potential safety hazards caused by disengagement between the ballast bed and the shield tunnel segment are avoided; and construction is convenient, installation is fast, and popularization is facilitated.

The invention discloses an anti-theft and gas leakage prevention alarm system and a control method. Since the anti-theft and gas leakage prevention alarm system mainly comprises an MCU, a gas leakage sensing module, a GSM module, remote control equipment, a power module, a ferroelectric memory module, a standby power module and a charging module, the problems that wired telephone dialing fails at critical moments because the alternating current is powered off due to accidental factors in the prior art, the Ethernet also faces the hidden danger that the line is cut off and is not easy to popularize, the power consumption of a cluster system is high, the network setup and maintenance costs are high and fixed frequency points need to be purchased are overcame, and the shortcoming that rigorous arrangement of defense deploying cannot be further made since the previous alarm records cannot be checked. The anti-theft and gas leakage prevention alarm system and the control method can prevent potential safety hazards, do not rely on a wired telephone for alarming, directly reflect situation of an alarm location on a mobile phone screen in the most intuitive Chinese short message service or phone form by means of the most reliable and most mature GSM mobile network, thus make the theft prevention more timely and the use more conveniently.

The invention provides an air supply and refrigerating system of a refrigerator. The air supply and refrigerating system comprises a top liner plate, a rear liner plate, an evaporator and a fan. The evaporator is fixedly arranged on the top liner plate, a rear air duct is arranged on the rear liner plate, a water disposal pan is arranged on the lower portion of the evaporator, the two sides of the water disposal pan wrap the evaporator and are connected with the top liner plate, a fan support is arranged on the front side of the water disposal pan, the rear side of the water disposal pan is communicated with the rear air duct, the fan is arranged on the fan support, the water disposal pan and the fan support are mutually independent parts or are respectively provided with independent space, the water disposal pan and the fan support are in mutual lap joint, and the water disposal pan, the fan support and the rear air duct form a sealed ventilation duct. The invention further provides a refrigerator with the air supply and refrigerating system. Stable airflow can be collected in the ventilation duct in the air supply and refrigerating system, heat exchange efficiency is greatly improved, the water disposal pan and the fan support are provided with independent space, condensing water is isolated from an electrical part on the fan side, water and electricity are separated, potential safety hazards are avoided, and the air supply and refrigerating system is easy to install.

The invention provides an electric automobile high-voltage power distribution system which comprises a power supply module, a power transmission module and a load module. The power supply module comprises a battery unit, a switch unit and a pre-charging unit. The switch unit is electrically connected with the power transmission module and the load module. The pre-charging unit is electrically connected with the load module. The power transmission module comprises an interface unit and a conversion control unit. The interface unit is electrically connected with the load module and the switch unit. The conversion control unit is electrically connected with the load module. The load module comprises a first load unit, a second load unit and a third load unit. Through design of the switch unit, the interface unit and the conversion control unit, different load devices can be independently controlled, so that potential safety hazards caused by integrated control are prevented, the stabilityof the power distribution system is improved, and through design of the pre-charging unit, the situation that the load devices are damaged due to quick power supply is prevented, and the stability ofthe power distribution system is further improved.

The invention provides an encryption method for an upgraded file and a detection method for the upgraded file. The encryption method for the upgraded file comprises the steps that a key field is obtained, and 7bit coding compression is conducted on a binary system of the key field so that a hexadecimal string of key_7bit can be obtained; the hexadecimal string of the key_7bit is converted into str_key_7bit; the str_key_7bit is written into a file 7bit.img, and therefore a corresponding file structure is generated. The detection method for the upgraded file comprises the steps that an img file for upgrading a server side is obtained, and the obtained file is stored into an internal memory; a cipher field str_7bit in the img file for upgrading is obtained; the cipher field str_7bit is decoded, and matching is conducted on decoded information str_key and preset information; if the decoded information str_key and preset information are successively matched, corresponding operation is executed; if matching between the decoded information str_key and preset information fails, alarming and restarting of a system are conducted. According to the technical scheme, verification is conducted through ciphers, and therefore the safety of the system is effectively improved.

The invention discloses a safety protection alarm system and a control method, which mainly include: MCU, gas leakage sensing module, infrared sensing module, smoke sensing module, GSM module, remote control equipment, power supply module, ferroelectric storage module, spare The power supply module and the charging module can overcome the accidental factors in the prior art that the AC power failure causes the limited telephone dialing to fail at critical moments. Ethernet also faces the hidden danger of line being cut off, and it is not easy to popularize. The installation and maintenance costs are very high, and fixed frequency points need to be purchased to overcome the fact that the past alarm records cannot be checked, so further strict arrangements for defense cannot be made.

The present invention proposes a panel switch comprising a lower plate body, an upper plate body, an elastic support mechanism and a switch unit arranged between the upper plate body and the lower plate body, the elastic support mechanism includes a first cylinder body, which is slidably arranged on the second The second cylinder in the first cylinder and the compression springs that are accommodated in the first cylinder and the two ends respectively lean against the lower plate and the upper plate, the side wall of the first cylinder is provided with a strip hole, the second The cylinder body is provided with a protrusion extending into the strip hole. One end of the first cylinder body and the second cylinder body is fixed on the lower plate body, and the other end is kept at a distance from the upper plate body. The first cylinder body and the second cylinder body The other end of the cylinder is fixed on the upper plate, and the other end is kept at a distance from the lower plate. The switch unit includes a micro switch located between the lower plate and the upper plate, and a power supply that is electrically connected to the micro switch and extends to the outside world. The plug is electrically connected with the micro switch and extends to the external power connector. The flat panel switch can be turned on when the user sits on it, and can be turned off when the user leaves, so as to save power.

The invention provides a section UT occupancy judgment method. The section UT occupancy judgment method comprises the following steps: acquiring occupancy information of a to-be-judged section; if the occupation information of the to-be-judged section is not occupied by the AT, obtaining a range of the to-be-detected section; according to the range of the to-be-detected section, logic section occupation information in the to-be-detected section is judged; and according to the occupation information of the to-be-judged section and the occupation information of the logic section, judging whether the to-be-judged section is occupied by UT or not. According to the section UT occupancy judgment method provided by the invention, when the section UT occupancy is judged, the communication delay and the axle counting acquisition delay are considered, so that the judgment of the UT occupancy is more reasonable and safer, and potential safety hazards caused by loss of a non-communication train are prevented.

The invention provides an instant interaction method and system based on voice touch screen fusion, a storage medium and a vehicle-mounted terminal, and the method comprises the following steps: receiving voice information transmitted by a user when the condition that the user presses a certain contact in a contact list for a long time is detected; recognizing the voice information to obtain a voice recognition result; and performing corresponding interaction with the contact person based on the voice recognition result. According to the instant interaction method and system based on voice touch screen fusion, the storage medium and the vehicle-mounted terminal, voice recognition, voice understanding and touch screen operation are combined, automatic interaction is achieved, and user experience is greatly improved.

The invention relates to a vehicle-mounted hybrid energy storage device applied to urban rail transit. The vehicle-mounted hybrid energy storage device is connected with a power supply grid and is further connected with a train chief traction system and a train auxiliary system. The vehicle-mounted hybrid energy storage device comprises multiple sets of high-voltage half-bridge direct-current/direct-current converters, multiple sets of low-voltage half-bridge direct-current/direct-current converters, multiple sets of super capacitors for high-power discharge, multiple switching tubes for controlling pre-charge and terminal voltage, a storage battery pack which is formed by multiple storage batteries in serial-parallel connection and used for long-time discharge, and multiple sets of filter circuits for filtration. Compared with the prior art, the vehicle-mounted hybrid energy storage device disclosed by the invention can carry out self-traction by using the reserved power of the hybrid energy storage device when the power supply grid of vehicles is in an outage fault, so as to move the vehicles to a safe district to avoid a disaster. The vehicle-mounted hybrid energy storage device not only is small in size and light in weight, but also has the advantages of saving energy, reducing consumption, reducing energy consumption of the urban rail transit, improving economic benefits and the like.

The invention discloses a method for recovery of a papermaking tail pulp by delivering the papermaking tail pulp into a spherical boiler. The method comprises the following steps: setting a tail pulpcollecting position used for collecting a tail pulp, mounting a tail pulp dilution tank at the tail pulp collecting position for tail pulp dilution, allowing a clear water inlet end to be connected with and arranged on the tail pulp dilution tank, diluting a collected pulp with clear water, delivering the diluted tail pulp to a cyclone separator through a pulp pump, carrying out screw pressing through the cyclone separator, and carrying out spiral delivery to the spherical boiler so as to realize recovery and reutilization. The method provided by the invention has the following beneficial effects: through a scheme of the invention for recovery of the tail pulp, the waste of a mildew tail pulp due to influence of weather is reduced, and an annual amount of about 2 tons and a value of 40000yuan are reduced; meanwhile, the cost of air-drying and manual sorting is saved, and about 30000 yuan per year is saved; thus, the total cost of about 70000 yuan per year is saved; meanwhile, potential safety hazards in the processes of transporting and lifting are avoided.

The invention discloses a taxi driver attendance system for taxi drivers to respectively communicate with a server for managing taxies through a vehicle-mounted terminal and mobile equipment for attendance checking. The invention is characterized in that the taxi driver attendance system comprises a fingerprint authentication module, and a short message validation module started after the authentication of the fingerprint authentication module, wherein the fingerprint authentication module is used for acquiring and identifying the fingerprint characteristics of the taxi drivers, and performing driver identity authentication according to the fingerprint characteristics, and the short message validation module is used for performing second authentication on the driver identities through the short message validation codes input by the drivers between the vehicle-mounted terminal and the server. According to the taxi driver attendance system, the problems of using one card by multiple drivers, using cards of others and the like in the prior art are avoided, the drivers can be remotely managed, and the problems of potential safety hazard and the like due to long continuous driving time of the drivers are solved.

The invention belongs to the field of chemical material production, and especially relates to 1,2-bis(trimethylsilyloxy)cyclohexene, and a preparation method thereof. Preparation chemical equation of 1,2-bis(trimethylsilyloxy)cyclohexene is represented by a formula in the invention. According to the preparation method, existing of unreacted metallic sodium residue in a reaction mixture is indicated based on a phenomenon that a blue compound is obtained via reaction of benzophenone with metallic sodium in an anhydrous solution; and a convenient and feasible method used for determining metallic sodium residual after reaction is provided, and potential safety hazards in post treatment processes are avoided completely.

The invention relates to the technical field of intelligent street lamps, in particular to an intelligent street lamp with an anti-collision reminding mechanism. According to the technical scheme, the device comprises a protective top, a supporting column and a base, the supporting column is fixedly installed on the top of the base, a fixing sleeve is fixedly installed on the outer side of the supporting column, a buffer frame is movably installed on the outer side of the fixing sleeve, a rotating roller is movably installed on the inner side of the buffer frame, and an alarm lamp is fixedly installed on the outer side of the buffer frame; a distance sensor is fixedly installed on the fixing sleeve between the buffer frames, lamp bodies are fixedly installed on the two sides of the supporting column, and a fixing ring is fixedly installed on the outer side of the top of the supporting column. Through mutual cooperation of the buffer frame, the rotating roller and the protection top, collision can be buffered, the collision strength can be reduced, through mutual cooperation of the alarm lamp and the distance sensor, the surrounding can be conveniently detected, when a person approaches, the alarm lamp is triggered to flicker for warning, potential safety hazards are avoided, and the safety of the person is improved. And the safety is improved.

The invention relates to the technical field of circuit breakers, and discloses a circuit breaker wiring structure. The structure comprises a circuit breaker body and a connector lug; the connector lug is arranged on the circuit breaker body, a groove is formed in the front end of the connector lug, a conductor head is embedded in the rear side of the connector lug, the front end of the conductor head extends into the groove, a first sliding groove of vertical equipment is formed in the front side of the conductor head, two connecting rods which are arranged in parallel up and down are arranged on the two sides of the conductor head, and according to the wiring structure of the circuit breaker; through pairing of the conductor head, the connecting rods and the clamping pieces, when a connecting wire is inserted into the groove to extrude and push the push block, the clamping pieces can automatically clamp the connecting wire, the fixing block is pushed to fix the fixing block and the connecting wire and fix the fixing block and the connector lug, and the connecting wire and the connector lug are connected conveniently; meanwhile, safety is high, and potential safety hazards are avoided and reduced.

The invention discloses large forging piece forming equipment for mining machinery, and relates to a mining machinery forging forming device which comprises a bottom plate and a boss. The upper portion of the left side of the bottom plate is fixedly connected with the boss; the middle of the upper portion of the boss is fixedly connected with a first motor; the middle of a first motor shaft is fixedly connected with an inclined rotating wheel; the upper end of the first motor shaft is rotationally connected with a connecting plate; the left side of the connecting plate is slidably connected with a sliding shaft with the lower end sliding on the upper edge of the inclined rotating wheel; the upper end of the sliding shaft is fixedly connected with a mounting plate; an electric push rod is fixedly connected above the mounting plate; the left end of the electric push rod is slidably connected with the upper end of a stand column fixedly connected above the left side of the bottom plate; and the right end of the electric push rod is fixedly connected with a lower mold. The first motor drives the inclined rotating wheel to rotate; then the sliding shaft slides on the upper edge of the inclined rotating wheel to drive the sliding shaft to slide up and down, then the mounting plate is driven to move up and down, then the electric push rod is driven to move up and down, and therefore the height position of the lower mold can be adjusted, and workpieces can be turned over conveniently.

The invention relates to an improved jack safety device for a subway civil defence partitiondoor. The device comprises a shell arranged on a door leaf, a sleeve is arranged at the lower part in the shell, the lower end of the sleeve extends out of the shell, a lock is arranged in the sleeve, the upper end of the lock is connected with a rotating arm through a pin shaft I, the rotating arm is connected with the shell through a pin shaft II, a movable handle is arranged at the upper end of the rotating arm, a lock base is arranged on a terrace corresponding to the lower end of the lock, a limiting hole I is formed in the lock base, a limiting hole II is formed in the lower portion of the sleeve, and a locking bolt is arranged in the limiting hole I or the limiting hole II. The device is easyto operate, the stability and the safety are greatly improved, and the cost is greatly reduced.

The invention discloses a monitoring and alarming system for a medical laboratory and a using method thereof, relates to the technical field of monitoring and alarming system structures, and aims to solve the problem that steps in a medical experiment process cannot be recorded in detail due to the fact that an existing monitoring and alarming system is usually fixedly mounted and inconvenient tomove. A mounting box is mounted above the mobile monitoring device, a placement chamber is formed in the mobile monitoring device, a storage battery is placed in the placement chamber, a mounting chamber is formed in the upper end of the placement chamber, a rotating motor is mounted in the mounting chamber, and a rotating shaft is arranged at the upper end of the rotating motor; an installation fixing base is installed above the rotating shaft, a rotating base is installed above the installation fixing base, rotating devices are installed at the two ends of the rotating base, monitoring devices are installed above the rotating devices, a sound receiving device is installed at the front end of the rotating shaft, and an alarm lamp is installed at the rear end of the rotating shaft.