47results about How to "Reduce unsafe hazards" patented technology

This invention discloses a network video examination system used in remote examinations including: a network system, a server, examinee terminals, an accreditation terminal and a manager terminal. This invention also discloses a realization method for the system: picked-up data at the examinee terminal are processed by software and transferred to digital signals to be transmitted to the server, the accreditiation terminal downloads the video data from the server and plays them to finish the examination, in which, examinees can timely and quickly find out their own results and comments.

The invention discloses a food fresh-keeping storehouse with a full-automatic vending function. The food fresh-keeping storehouse comprises a storehouse body, a computer network platform, a food storage bin, an environment adjusting system, a food identification code recognition system, an automatic-warehouse-in-out system and a computer centralized control system. The food fresh-keeping storehouse is capable of storing and keeping fresh of a plurality of varieties of food and is provided with the full-automatic vending function and an internet communication function. The invention further discloses a vending method of the food fresh-keeping storehouse with the full-automatic vending function. The method includes that the food fresh-keeping storehouse for storing the varieties of the food is set close to users and connected into the internet, a commercial tenant uploads related data to a commercial tenant website and the computer network platform of the food fresh-keeping storehouse with the full-automatic vending function; a user logs in the network platform of the food fresh-keeping storehouse with the full-automatic vending function to selectively purchase the food, pays via a third party payment platform to complete a transaction to obtain a pickup identification code for the purchased food, and goes to the food fresh-keeping storehouse with the full-automatic vending function to pick up the purchased food on the basis of the food identification code. The food fresh-keeping storehouse with the full-automatic vending function is convenient, quick, safe and reliable and is provided with an extremely high commercial value.

The invention relates to a seat conveyor and a conveying method. The conveyor comprises a conveying support, a hanger is arranged on a chain, and an aluminum turnable bridge plate and a connection plate are connected to two ends of the conveying support respectively. The method includes the steps: erecting the seat conveyor between the ground and a transporter requiring seat mounting; lifting a tray seat and a wheel set device fixed to the bottom and transported on an assembly field, lifting a foot switch seat and the wheel set device, demounting a bottom tray, and fixing the wheel set device to the bottom of the seat; manually pushing the seat with the wheel set mounted at the bottom to the hanger of the seat conveyor, and enabling the chain to drive the hanger to transport the seat to the top of a lifting device; manually pushing the seat to a pre-mounting position; and lifting the seat transported to the pre-mounting position, demounting the wheel set device at the bottom of the seat, and fixing the seat to the pre-mounting position. The seat conveyor and the conveyor method have the advantages that labor intensity is greatly relieved during overall procedures, tray cost is saved, and assembly time is saved.

The invention discloses a visual tracking method based on multi-cue fusion, which belongs to the technical field of information. The method comprises the following steps: a) determining a tracking window comprising a target region and a background region in a first frame of a video sequence; b) obtaining a color feature probability distribution graph, a position feature probability distribution graph and a motion continuity feature probability distribution graph of the previous frame from the second frame; c) adding the three probability distribution graphs in a weighed manner to obtain a total probability distribution graph; and d) using a CAMSHIFT algorithm to obtain the coordinates of a central point of the tracking window of the current frame in the total probability distribution graph. The method can be used in human-computer interaction, visual intelligent surveillance, intelligent robot, virtual reality technology, model-based image encoding, content retrieval of streaming media and other fields.

The invention discloses a hydrothermal rock breaking cracking device, a detonating network and a directional cutting method thereof, and belongs to the field of mine mechanical engineering. The devicecomprises a directional cracker (2). The directional cracker (2) contains an ion water solution (11). The directional cracker (2) is provided with an inner container heat conducting pipe (3). A weakgap (2-1) is formed in the lower middle end of the directional cracker (2). The directional cutting method comprises the following steps that S1, water is injected into hydrothermal rock breaking devices; S2, hydrothermal rock breaking devices are in series-parallel connection; S3, hole forming, orienteering and hole sealing are performed; S4, the detonating network is connected, and the connectivity is detected; S5, security alert is given, and detonation is performed; S6, after one-time directional cutting operation is completed, the steps 1-5 are executed repeatedly, and circulation at thenext stage is started. Hydrothermal rock breaking cracking is adopted for replacing carbon dioxide gas explosion cracking, potential safety hazards in the storage, transporting and using processes aregreatly reduced, meanwhile, vibration disturbance and noise can further be lowered, and the device is particularly applicable to some specific environments where intense vibration and noise are forbidden.

The invention provides a range hood. The range hood comprises an up-and-down driving motor and a control circuit, wherein the up-and-down driving motor is used for controlling an electric push rod, which drives an air inlet and smoke-collecting cover to move, according to a signal from the control circuit; the control circuit comprises a pressure sensor and a controller; the controller is used for transmitting an ascending signal to the up-and-down driving motor to enable the electric push rod to drive the air inlet and smoke-collecting cover to ascend, or transmitting a descending signal to the up-and-down driving motor to enable the electric push rod to drive the air inlet and smoke-collecting cover to descend; when the controller transmits the ascending signal or the descending signal to the up-and-down driving motor, the pressure sensor starts; the pressure sensor is used for sensing pressure when starting and transmitting the sensed pressure value to the controller; and when the difference of the pressure values which are received by the controller from the pressure sensor continuously for twice is more than a preset threshold value, the controller transmits a signal opposite to the signal, which is transmitted to the up-and-down driving motor previously, to the up-and-down driving motor and enables the opposite signal to continue for the preset time.

The invention provides a steel tube cargo shipping accessory. A supporting bar of the accessory is hung on the shackle of a supporting bar suspension system; a short suspension system is hung on the suspension centre at the lower part of the supporting bar; two ends of a chain are hung on the shackles of the short suspension system; a slip hook is hung on the chain in a sliding manner; a steel wire lock catch is connected onto the chain through the slip hook; meanwhile, the invention provides an operating method employing the steel tube cargo shipping accessory. The steel tube cargo shipping accessory and the operating method employing the same have the benefits that after cargos are lifted and suspended in the air, stability during the process of operation is guaranteed by employing the method, the problem that the peripheral perimeters of the cargos in each car of a pallet truck are unequal due to unequal diameters of steel tube cargos is solved, the accessory is applied to steel tube cargos with wide specification ranges, time for changing tools due to specification change of the cargos is reduced, the potential safety hazards are reduced, the working performance is improved, the operation is convenient, and the accessory has remarkable application effects at a general cargo terminal which regards 25 tonne portal cranes as main operation machinery.

The invention provides a section cutting hole tunneling method of a mine, and relates to the technical field of mining. The section cutting hole tunneling method of the mine comprises the following steps that 1,the actual condition of a working face coal seam in an early tunneling process is judged, a tool is advanced from the top left corner of a roadway to cut a socket groove through a heading machine, a working face is sequentially cut in a circulating and reciprocating mode by using a cutting mode which is conducted from the top to the bottom and from the left to the right, and the two sides of the roadway and a bottom plate are repaired; and 2, inspection is performed on the heading machine, a cutting system is started under the condition of no load, and a cutting head of the headingmachine is enabled to rotate. According to the section cutting hole tunneling method of the mine, the total width of the cutting hole is 7 meters, the length is 150 meters, the width of the roadway isreduced firstly, and tunneling is conducted for 150 meters with the width of 3.5 meters and the roadway is connected with an air return way in a through mode, so that the tunneling speed can be accelerated, the rapid breakthrough of the cutting hole and the air return way can be brought forwards, the safety during tunneling operation is increased, the use of a local fan can be stopped in advanceafter the breakthrough, and the energy-saving effect is achieved.

The invention discloses a marine vehicle fixing device and a ship, and the marine vehicle fixing device comprises a longitudinal fixing part which is disposed in an open groove on a ship deck, and comprises a first jacking support part and a longitudinal limiting part at the upper end part of the first jacking support part; a transverse fixing part which is arranged in the open groove and comprises a second jacking supporting piece and a transverse limiting piece at the upper end of the second jacking supporting piece, wherein the transverse limiting piece comprises a pushing and abutting partarranged towards the wheel side and a control rod used for pushing out and retracting the pushing and abutting part; a control member, wherein the control member is used for controlling the driving part to drive the first jacking supporting part and the second jacking supporting part to rise, and driving the control rod to push the pushing and abutting part to wheels of a vehicle parked at a preset position and pushes and abuts against the wheels after the second jacking supporting piece is lifted to a preset height, controlling the driving part to drive the control rod to retract the pushing and abutting part, and driving the first jacking supporting piece and the second jacking supporting piece to fall back after the pushing and abutting part retracts, so that the vehicle is automatically fixed and unlocked, and the operation efficiency is improved.

The invention discloses an interrogation chair for efficiently handling a case. The interrogation chair comprises arm-rest frames, a chair back, a chair seat, movable tables, handcuff mechanisms and shackle mechanisms and further comprises a sound pickup device, a fingerprint acquisition device, a signature board, an electrical cabinet, a push-pull covering plate and a host, wherein the push-pullcovering plate can be pulled outwards and pushed backwards; the fingerprint acquisition device and the signature board are embedded in the movable tables below the push-pull covering plate; the soundpickup device is mounted at the upper part, close to a rotating hinge, of the movable table; the electrical cabinet is fixedly mounted at the bottom of the chair seat; a power supply cable is connected into the bottom of the interrogation chair from the outside and data is transmitted by a transmission cable; the host stores fingerprint, record and sound information and transmits the data to a computer of an interrogation personnel by the transmission cable. A fingerprint identifier and the signature board of the interrogation chair are embedded into the movable tables, so that the interrogation chair is convenient to acquire; the interrogation chair is stable in data transmission with the computer of the interrogation personnel and has no attenuation; a power line and a data line are botharranged inside an arm chair, the movable tables and the chair seat, so that an occupied space is small.

The invention discloses a multifunctional interrogating chair. The multifunctional interrogating chair comprises two armrest racks, a chair back, a chair seat, a movable table, handcuff mechanisms andleg cuff mechanisms, the two armrest racks are located at the two sides of the chair back and the two sides of the chair seat, and the movable table is erected on the upper portions of the front endsof the two armrest racks; one end of the movable table is hinged to the armrest racks through hinges, each handcuff mechanism is arranged on the corresponding armrest rack, the leg cuff mechanisms are installed on the lower portion of the chair seat, and the chair further comprises a pulling-type supporting plate and a main unit; a groove is formed in the side, facing the pulling-type supportingplate, of the movable table, the pulling-type supporting plate is installed in the groove and provided with a fingerprint collector and a signature board, and power lines and data lines of the fingerprint collector and the signature board are connected into the main unit through the pipes in the movable table and the armrest racks. The multifunctional interrogating chair is convenient to operate,the fingerprint collector and the signature board are integrated, the structure is simple, and the integrality and attractiveness of the interrogating chair are not influenced; data transmission is stable, and zero decrement is achieved.

The invention relates to a safety protection device for a long handle pneumatic screwdriver. A protective sleeve (3) is arranged outside the long handle pneumatic screwdriver, an internal hexahedron is arranged at the rear end of the protective sleeve and matched with an external hexahedron arranged of a screwdriver handle (4), so that axial movement of the screwdriver handle in the protective handle does not exist, an internal circular shape is arranged on a position where the front end of the protective sleeve (3) exceeds a screwdriver in length, the internal diameter of the internal circular shape equals to the external diameter of a screw (7), and the internal circular shape is sleeved on the screw. When the safety protection device is used for assembling a long handle screw, due to the fact that the protective sleeve is matched with the screw, the screwdriver can not slip off, on one hand, the safety of operators is protected, and on the other hand, production efficiency is further improved. The safety protection device for the long handle pneumatic screwdriver is reasonable in structural design, simple in manufacturing, and capable of improving work efficiency, eliminating potential safety hazards, improving product quality and reducing production cost, and wide in application range and favorable for popularization and application.

The invention relates to a ton bag unpacking device. The ton bag unpacking device comprises a caching mechanism, a tray, a supporting rod mechanism and a bag unpacking piece; the caching mechanism ismovably connected with a forklift; the tray is used for supporting and placing a ton bag; the tray is supported and arranged on the caching mechanism; the supporting rod mechanism is movably arrangedon the tray and is used for hanging the ton bag; and the ton bag unpacking piece is arranged on the tray and is used for unpacking the ton bag. By means of the ton bag unpacking device, the operatingdifficulty in unpacking the ton bag can be reduced; and the work efficiency can be improved.

A water-based reinforced dampproof film coating premixing agent is prepared from, by mass, 3-45% of coloring agent, 30-70% of film forming agent, 3-20% of plasticizer and 1-7% of surfactant. The invention further provides a preparation method of the coating premixing agent. Coloring agent materials are mixed and smashed to obtain a mixture uniform in color; a surfactant material is added to the coloring agent mixture for high-shear mixing, and then grinding and smashing are performed; the plasticizer is added to a container, then a film forming agent material is added, then the mixture of the coloring agent and the surfactant is added for mixing, and grinding, smashing and re-mixing are performed, so that the mixture is fully grinded, uniformized and screened to obtain the water-based reinforced dampproof film coating premixing agent. The water-based reinforced dampproof film coating premixing agent plays the good effect on the oil volatility of traditional Chinese medicine tablets and micro pills having various properties, taste masking of veterinary drugs and the like.

The invention relates to a safety protection device for a ring rolling machine, which includes a support and a fixed frame, the fixed frame is semicircular, and a protective component is arranged on the side wall of the fixed frame; the protective component includes a first arc-shaped protective plate and a second The arc-shaped protective plate has an arc cavity inside the first arc-shaped protective plate, and the circular-arc cavity extends to the connection between the first arc-shaped protective plate and the second arc-shaped protective plate, and the second arc-shaped protective plate slides and inserts It is connected inside the arc cavity; the fixed frame is fixedly connected with the first arc-shaped protective plate on one side of the length direction of the support, and the fixed frame is coaxially arranged with the first arc-shaped protective plate and the second arc-shaped protective plate. A first drive assembly is provided for the first arc-shaped protective plate to move along the length direction of the support, and a second drive assembly is provided on the fixed frame for the second arc-shaped protective plate to slide along the length direction of the fixed frame. The invention has the effects of improving the working environment of operators and reducing unsafe hidden dangers.