117results about How to "Improve protection security" patented technology

The utility model discloses a fence and installation method thereof. The fence comprises a fence post, a platen, a top cover, a crank arm, a mesh, rails, a rail-linking member, bolts and a bolt 2. The fence has the advantages of being high in safety and protection, being accessible to a plurality of occasions, being easy in installation, being convenient and flexible to assemble and disassemble, being high in recycling utilization rate and being capable of lowering manufacture cost.

The invention discloses a method for molding a vertical wall of a deep foundation pit. The method comprises the following steps: drilling a plurality of presplit holes on a preset edge of the foundation pit and filling each presplit hole with a stick dynamite and a detonating fuse connected with an instant electric detonator outside the hole by adopting full-pit-depth one-step drilling molding; forming a buffer hole, a main explosion hole and a cutting hole in turn from outside to inside on the surface layer of the foundation pit; arranging segmented stick dynamites and non-electric millisecond difference detonators in the buffer hole, the main explosion hole and the cutting hole, wherein the non-electric millisecond difference detonators are connected with the instant electric detonators; after all the instant electric detonators are connected with each other in series, connecting all the instant electric detonators to a trigger; igniting a plurality of rows of blast holes at the same time and detonating the presplit hole, the cutting hole, the main explosion hole and the buffer hole in turn; after blasting, performing digging and transportation and wall surface timbering in sequence; blasting step by step to the bottom of a preset foundation pit; and manually repairing and scattering the bottom of the foundation pit. The method has the advantages of little construction difficulty, high protection safety, short construction period, stable engineering project quality and excellent comprehensive benefit.

The invention discloses a stab-resistant body protector structure capable of effectively avoiding body protector gap stabbing. The stab-resistant body protector structure comprises a base cloth and aplurality of reinforced composite thermoplastic stab-resistant sheets which are fixed to the base cloth in an arrayed mode. The shapes of the opposite end faces of every two adjacent reinforced composite thermoplastic stab-resistant sheets are profiled and further matched with each other so that overlapped portions can exist when the two adjacent reinforced composite thermoplastic stab-resistant sheets are vertically projected into a shadow structure of the base cloth, and thus knife edges cannot penetrate through the reinforced composite thermoplastic stab-resistant sheets to straightly hit the base cloth when stabbing the gap portion between every two adjacent reinforced composite thermoplastic stab-resistant sheets. The stab-resistant body protector structure can effectively prevent theknife edges from stabbing into gaps between the protector sheets, and the safety protection performance of a stab-resistant body protector is greatly improved.

The invention discloses a method and a device for driving a high-efficiency lamp by means of an electronic transformer. The device comprises a commercial power filtering input end which is used for converting AC power to high-voltage DC power; a flyback switch unit which is used for converting high-voltage DC power to low-voltage DC power; a light and color adjustment driving unit which is used for making an LED light source emit light with different colors and brightnesses, wherein the light and color adjustment driving unit comprises a DC/DC adaptive power supply module, a power-off detecting module, a wireless communication module, a micro processing control unit, an LED driving module and an overload protecting unit; an electric memory, a current detecting unit, a current control unit and an electric consumption amount detecting unit. According to the method and the device, an electric memory is utilized for memorizing illumination color or brightness switching which is set by a user to an illumination system, thereby realizing no related data loss after restarting, and realizing light and color adjustment of the lamp by a mobile phone through a wireless network. Compared with a traditional mechanical switch, the method and the device have advantages of higher convenience and higher intelligent degree.

The invention discloses a wireless intelligent dimming switch, comprising a commercial power filtering input terminal for transforming alternating current (AC) into high voltage direct current (DC); a flyback switch unit used for converting high voltage DC into low voltage DC; a dimming and color modulation driving unit used for controlling different color and brightness illumination of LED light source, and comprising a DC/DC self-adaptive power supply module, a power failure detection module, a wireless communication module, a microprocessing control module, an LED driving module, and an overload protection unit; and an electrical memory, a current detection unit, a current control unit and an electricity consumption detection unit. The switch utilizes the electrical memory to memorize switch setting of an illumination color or brightness set by a user to an illumination system, does not miss related data after restart, can perform dimming and color modulation by utilizing a mobile phone through the wireless network, and is more convenient and intelligent compared with a present mechanical switch.

The invention discloses an ultra-precision grinding machine for a ball track. The grinding machine comprises a base, a camshaft, an emptying swing arm and a material receiving swing arm, wherein feeding components consisting of material hanging rods, feeding guide sleeves, emptying mechanisms, mechanical hands, blanking frames and bearing brackets are arranged on the base; emptying mechanisms are fixed on an emptying shaft; the mechanical hands are fixed on a material receiving shaft; two sides of the mechanical hands are provided with rolling rod mechanisms; grinding heads which swing in a reciprocating mode are arranged above the mechanical hands; ejector rod tools are arranged below the grinding heads; radial cams, a material receiving surface cam and an emptying surface cam are arranged on the camshaft; the ejector rod tools are driven by the radial cams to vertically move; the material receiving surface cam makes the material receiving shaft move transversely through the material receiving swing arm; and the emptying surface cam makes the emptying shaft move transversely through the emptying swing arm. Due to the structure, the ball track can be fully automatically machined, rough ultra-precision machining and finish ultra-precision machining can be performed on the same machine tool, and the quality and machining efficiency of the product are improved; meanwhile, the grinding machine is simple and compact in structure and convenient to operate, and the protection safety is improved.

The invention relates to the technical field of medical protectors, and particularly relates to an air purification protective mask. The air purification protective mask comprises a helmet body, a protective mask, a protective shawl, a fan and an air filter, wherein the protective mask is arranged at the front end of the helmet body, the protective shawl is arranged at the rear end of the helmet body, the fan is installed on the helmet body, the fan is arranged at a purified air inlet, the outer side of the fan is connected to the air filter, a purified air outlet is formed in the helmet body,and the purified air outlet is communicated with the purified air inlet. The air purification protective mask has the beneficial effects that purified air is conveyed into the protective helmet, theair purification rate reaches 99% or above, the protection safety is improved, the number of masks worn can be reduced, and therefore the breathing comfort degree and the oxygen supply capacity are improved; protection is provided for the face, pollutants are physically prevented from directly invading and making contact with the face, and eye vision is not hindered; the wearing comfort is improved, fog in front of eyes is reduced, face heat dissipation and sweat volatilization are accelerated, and face tightening marks are avoided.

The embodiment of the invention discloses a data sharing method and a related device, equipment and system. The data sharing method comprises the following steps of: sharing data, the first node or the proxy node of the first node receives a sharing request for indicating to share the target data to n nodes in the blockchain network, generates a first multiple signature address according to the public keys of at least n nodes, and encrypts the target data through the first multiple signature address to obtain first transaction data; and then, uploading the first transaction data to a blockchain network, and after receiving the first transaction data, the n nodes decrypt the first transaction data according to at least i private keys included in the private keys of the at least n nodes to obtain target data. According to the method, a fair and supervisable data sharing mode is provided, the data sharing process is transparent and fair, and the safety of the shared data can be improved and protected.

The invention discloses an encrypting method, a device and a hard disk. The encrypting method comprises the steps of receiving radio frequency information and controlling a storage area in a storage device to display, wherein the original state of the storage area is a hidden state. The invention promotes the safety of data protection in the storage device.

The invention discloses a flexible anti-collision guardrail system of a sea-crossing bridge, and belongs to the technical field of road safety protection. The flexible anti-collision guardrail system of the sea-crossing bridge comprises protection assemblies arranged in a whole column and a first handrail used for connecting and fixing the protection assemblies, wherein air sac ejection assemblies are installed on the first handrail, each protection assembly comprises a cylinder body, an inner box which can rotate around each cylinder body is connected with each cylinder body in sleeving mode, an outer box is arranged around the exterior of each inner box, the box wall of each outer box is connected with each air sac ejection assembly through a rope body, and the air sac ejection assemblies are started for ejecting air sacs by rotating the outer boxes. The flexible anti-collision guardrail system of the sea-crossing bridge can achieve a buffer function when a vehicle strikes a guardrail, achieves elastic collision between the vehicle and the bridge guardrail, and effectively reduces harm and loss which are caused by rigid collision to the vehicle and passengers.

The invention discloses a passive pedestrian protection device of an automobile. The passive pedestrian protection device is arranged above a front anti-collision beam. The passive pedestrian protection device comprises a pedestrian protection beam, pedestrian protection beam lateral supporting pieces and a pedestrian protection beam bottom supporting piece. The pedestrian protection beam is fixedly connected with automobile body supporting beams through the pedestrian protection beam lateral supporting pieces. The pedestrian protection beam is fixedly connected with the front anti-collision beam through the pedestrian protection beam bottom supporting piece. Because the passive pedestrian protection device is arranged above the front anti-collision beam, a pedestrian can bend around a contact point between the pedestrian and the pedestrian protection beam when the pedestrian collides on the pedestrian protection beam, and the risk that the pedestrian is directly collided and bounced off by a hard heat radiator module inside the automobile is avoided; meanwhile, the pedestrian protection beam is low in strength and can prevent upper legs of the pedestrian from being badly injured. Thus, the passive pedestrian protection device is high in pedestrian protection safety performance. The invention further discloses the automobile including the passive pedestrian protection device.

The invention proposes a frequency domain analysis based DFIG (Doubly-fed Induction Generator) crowbar resistance setting constraint computing method. The solving and superposition of a zero state response and a zero input response of a stator/rotor current after triggering a crowbar circuit are realized in a frequency domain through Laplace transformation. A time domain solution of a stator/rotor transient current is calculated by adopting Laplace inverse transformation. A line voltage upper limit after triggering the crowbar circuit under the condition of different rotational speeds and different crowbar resistance is calculated by analyzing physical characteristics of an analytic expression obtained by solving the stator/rotor current in the frequency domain and the time domain, a constraint condition of a crowbar resistance value is obtained according to the value of the upper limit, and a rotor current transformer is guaranteed to be reliably bypassed during crowbar circuit triggering.

The invention discloses a steel bar welding and fixing device for a foundation pit support. The steel bar welding and fixing device comprises a protective frame. Support beams are arranged inside theprotective frame from top to bottom in sequence. Steel bars are connected between the support beams in a penetration mode. Reinforcing plates are welded to the front sides of the steel bars. The two ends of each reinforcing plate extend to the front side of the protective frame. The end, located on the front side of the protective frame, of each reinforcing plate is fixedly provided with clampingblocks. According to the steel bar welding and fixing device for the foundation pit support, fastening sleeves are arranged at the upper end of the protective frame in a sleeving mode and are fixed through fixing bolts to ensure that the fastening sleeves are mounted on the surface and cannot slide; the support beams are welded to the side faces of the fastening sleeves, and the upper and lower ends of the steel bars penetrate into the support beams to ensure that the steel bars and the support beams cannot shake after being connected; the reinforcing plates are welded to the front sides of the steel bars, the clamping blocks at the two ends are clamped into the protective frame and can connect and fix the steel bars; and the protection strength and the safety coefficient of the foundationpit support are enhanced, and the steel bar welding and fixing device ensures that no shaking and fracture can occur.

The subjects of the invention comprise a non-shielded touch hand-held electronic apparatus and a controller. The controller is applicable to the non-shielded touch hand-held electronic apparatus. The controller comprises a driving unit, a sensing unit and a processing unit; the driving unit outputs a driving signal to a touch sensing structure; the sensing unit receives a trigger signal of a trigger event from the touch sensing structure; and the processing unit receives the trigger signal and calculates a plurality of detection points of the trigger event to work out a calculating result, and compares the calculation result with an activation judging condition, wherein when the trigger event satisfies the activation judging condition, the sensing unit allows an input action from the touch sensing structure; the processing unit outputs an operating signal according to the input action; and a central processing unit executes an operation on the hand-held electronic apparatus based on the operating signal. According to the non-shielded touch hand-held electronic apparatus and the controller, the sight of a user in operation is not shielded by fingers, and the problem of the panel scratching is reduced; and in addition, the non-shielded touch hand-held electronic apparatus has the convenience that the electronic apparatus can be operated by one hand and can be touched in a multi-point touch mode.

The invention discloses a high-low voltage transformer with high safety protection, and belongs to the technical field of transformers. The transformer comprises a transformer shell, an inner cavity of the transformer shell is provided with a module adjustable iron core mechanism, the bottom of the iron core mechanism is fixedly provided with an insertion mechanism for cooling oil liquid noise reduction, and the insertion mechanism is fixedly arranged in the inner cavity of the transformer shell; and a corresponding insulator is arranged at the top of the iron core mechanism, a winding is adjustably installed on the outer side wall of the iron core mechanism, and a self-cleaning wiring protection mechanism is fixedly arranged at the position, corresponding to the insulator, of the top of the winding. According to the invention, heat dissipation control over the winding is facilitated, the iron core body can enter transformer heat dissipation oil through the openings in the two sides, heat dissipation treatment on the winding and the iron core body is guaranteed under cooperation of the multiple inserted spacers, and therefore the heat dissipation adjusting capacity of the iron core mechanism and the winding can be effectively improved; and in addition, the subsequent maintenance universality is realized through the adjustable inserted spacer, and the disassembly and assembly maintenance efficiency is improved.