84results about How to "Prevent break-in" patented technology

The invention belongs to the technical field of unmanned aerial vehicle regulation and particularly relates to a no-fly zone unmanned aerial vehicle early-warning method. The method comprises the steps of firstly, acquiring a certain number of longitude and latitude coordinate points of an unmanned aerial vehicle flying in a current time period, through coordinate transformation, transforming the points to corresponding plane coordinate points in a rectangular plane coordinate system, then, using an improved least square method to conduct curve fitting on corresponding discrete plane coordinate points, fitting a flight path of the unmanned aerial vehicle in this period, finally, obtaining a tangent line of a current point of a fitting curve, and judging whether or not the unmanned aerial vehicle can enter a no-fly zone by judging whether or not the tangent line is intersected with an electronic fence for describing the no-fly zone. If yes, real-time distance between the current point and the no-fly zone is obtained and an alarm is given in time, and if not, prediction for the next moment is carried out. The no-fly zone unmanned aerial vehicle early-warning method has a wide application prospect in the field of civilian unmanned aerial vehicle regulation.

The present invention provides an air cleaner, in which a casing has an air inlet pipe making air inflow along a direction perpendicular to the axis of a cylindrical filter element, and an air outlet pipe making filtered air outflow along the axis, and the casing has a supporter clingingly supporting the end outer circumference of the filter element on closed valley portions side along the circumference direction continuously, and another supporter supporting the end inner circumference of the filter element on closed mountain portions side along the circumference direction continuously to close a hollow portion, and air to be filtered inflows to the filter element from a first inflow space on the top side of the mountain portions as well as from the end of a second inflow space side, and filtered air outflows from the end on an outflow space side as well as from the hollow portion.

An airbag apparatus for a motorcycle includes an airbag module with an airbag that is capable of being inflated and deployed so as to restrain the rider on a seat disposed behind the fuel tank from the front that is mounted on the vehicle body frame. Without requiring a modification of the configuration of the appearance constituting parts of the motorcycle, water, mud, or the like is prevented from breaking into the airbag module. The front portion of the seat that covers the airbag module to be mounted on the vehicle body frame at a position rearwardly of the fuel tank from above and extends to the position on the rear portion of the fuel tank is constructed so as to be opened with the rear side raised upwardly in response to inflation and deployment of the airbag.

The invention relates to a wireless security system based on Internet of Things, which comprises an intelligent terminal, a cloud platform server, security surveillance units installed in houses of adistrict, a monitoring server and an alarming device installed in a monitoring room, and an access control system installed at a gate of the district. The monitoring server is wirelessly connected with the security surveillance unit and the access control system, respectively; the alarming device is connected with the monitoring server via a data cable; the monitoring server and the intelligent terminal are both connected with the cloud platform server via a network; and the security surveillance units comprise microprocessors, as well as information collectors and radio communication modulesthat are connected with the microprocessors respectively. The wireless security system effectively prevents data loss due to a failure of the monitoring server and extends the memory capacity of the system; and the system increases the flexibility of configuration and reduces the cost of configuration via the wireless communication technology.

The invention provides a small animal prevention device and method, and belongs to the technical field of power cable maintenance. The small animal prevention device comprises an animal cage and an expelling mechanism; the animal cage comprises a front cage door and a rear cage door, and catching mechanisms are arranged on the inner sides of the two cage doors; each catching mechanism comprises aninclined pedal arranged at the bottom surface of the animal cage and a spring arranged at the lower part of the pedal, one ends of the pedals are provided with supporting rods supporting the open sides of the cage doors, the front and rear supporting rods are connected, and first magnets are arranged on the three sides of an opening of each cage door; second magnets opposite to the first magnetsin polarity are arranged at the positions, corresponding to the three sides of the openings of the cage doors, of the cage wall of the animal cage, and an alarm device is arranged in the animal cage;an outlet is formed in the animal cage, and a baffle is arranged at the outlet of the animal cage; the expelling mechanism comprises a mouse dispeller and an infrared emitter. According to the device,small animals close to a cable trench can be driven away, meanwhile, the small animals entering the cable trench can be captured, cables are prevented from being damaged by the small animals, and thepurpose of protecting the cables is achieved.

The invention provides a flight control method. The method comprises the steps that a flight control instruction transmitted by a control side is received; when the flight control instruction transmitted by the control side is received, whether entering a preset no-flight area is performed is judged after the flight control instruction is performed; and when entering the preset no-flight area is performed after the flight control instruction is performed, the flight control instruction is not responded and the flight control instruction is discarded. The invention also provides an unmanned aerial vehicle and a computer readable storage medium. The unmanned aerial vehicle can be prevented from flying into the no-flight area so that unnecessary harassment to the outside caused by the unmanned aerial vehicle can be avoided.

The invention discloses a road traffic accident onsite remote control movable type safety warning vehicle. The road traffic accident onsite remote control movable type safety warning vehicle comprises a remote control vehicle body, a flashing light, a tweeter, an audio and video recording device, a traffic sign board, a variable LED screen, a storage device, an anti-intrusion warning device, an anti-intrusion receiver and a remote controller. The variable LED screen is arranged on the remote control vehicle body, and the traffic sign board is arranged at the top of the variable LED screen; the tweeter and the audio and video recording device are arranged at the top of the traffic sign board, the storage device is arranged on the remote control vehicle body, the storage device is electrically connected with the audio and video recording device, and the flashing light is arranged above the traffic sign board through a support member. The anti-intrusion warning device is arranged on the remote control vehicle body, and the anti-intrusion warning device is connected with the anti-intrusion receiver. The road traffic accident onsite remote control movable type safety warning vehicle can effectively prevent a vehicle from intrusion into a traffic accident field and prevents a secondary accident; the road traffic accident onsite remote control movable type safety warning vehicle can urgently prompt onsite personnel of evacuation and reduces the loss caused by intrusion of the vehicle; and the road traffic accident onsite remote control movable type safety warning vehicle can reduce the labor intensity and the danger of manual onsite commanding.

The invention discloses a BRT rapid public transportation system gate safety passage management system and a method. The system comprises fee charging area outbound gates and non-fee charging area inbound gates. Output of a passenger outbound monitoring unit is connected with a signal processing module. The outputs of the signal processing module and a card reader are respectively connected with a master control unit. The output of the master control unit is respectively connected with a displayer, an alarm device, an indicating lamp and a door driving unit. The master control unit is also connected with a fee charging module, a timer and a single ticket recycling module respectively. The output of a passenger inbound monitoring unit is connected with the signal processing module. The outputs of the signal processing module and a ticket card reading module are respectively connected with the master control unit. The output of the master control unit is respectively connected with the displayer, the alarm device, the indicating lamp and the door driving module. Various passage behaviors and states of passengers can be detected and identified so that the behaviors of intrusion, following, retrograding and staying of the passengers in gate channels can be effectively avoided and identified.

The invention provides an active prevention and control method for highway traffic accident site risk. The method can give an alarm in advance, prevent vehicles from intruding into an accident site, give a more targeted warning method, and greatly reduce the occurrence probability of secondary accidents. According to the technical scheme of the invention, the method comprises the following steps: predicating the risk of a secondary accident in an accident scene based on the traffic flow risk pre-judgment model; calculating to obtain a threshold value corresponding to the traffic flow characteristic element data through historical traffic data of the traffic flow of the road section where the accident scene is located, and training a traffic flow risk pre-judgment model through the threshold value corresponding to the traffic flow characteristic element data; acquiring environment element data and traffic flow characteristic element data of an accident scene, and inputting the data into a trained traffic flow risk pre-judgment model for risk pre-judgment; implementing different early warning measures according to different risk levels, and generating the method on a more targeted warning method. Meanwhile, the invention further discloses an active prevention and control system for the highway traffic accident site risk.

The present invention is a security window insert assembly retrofit to existing insulated windows (double or other multi-pane windows). The assembly generally comprises a tubular steel gridwork anchored in a substantially rectangular spacer, and opposing panes of glass adhered to the sides of the spacer such that the gridwork occupies and is suspended in the airspace between the panes of glass. The tubular gridwork comprises a gridwork of or more horizontal and one or more vertical struts leading to distal ends press-fit into the spacer. The result is a double pane window unit that may be installed within a window frame in a conventional manner. However, the security grating erects an impenetrable shield between the interior surfaces of the panes, and since it remains anchored in the spacers it cannot be removed.

The invention discloses a fast protection arrangement safety monitoring system for a power construction area. The system is characterized by comprising a plurality of support rods, an interception rope, an active infrared intrusion detection device, intelligent warning boards, a remote image monitoring device, a portable general packet radio service (GPRS) wireless communication device, a portable solar power supply device and monitoring computers, wherein a pair of infrared transceivers is arranged between any pair of adjacent support rods; each intelligent warning board comprises a passive infrared detector, an intelligent voice alarming module and a global positioning system (GPS) positioning module, which are arranged on a warning board body; the intelligent warning boards are suspended on the interception rope; the remote image monitoring device, the portable GPRS wireless communication device and the portable solar power supply device are arranged in the power construction area; and the monitoring computers are arranged in a local side monitoring center, and comprise a geographic information system (GIS) database server and a GPRS wireless communication receiving device. The system has the characteristics of convenience for movement and the like, and is easy to mount; and by the system, the functions of fast protection arrangement and high-efficiency early warning in the power construction area can be realized, and the safe conditions of a construction process can be monitored in real time by the local side monitoring center (power dispatching center).

The invention discloses a wireless monitoring camera for an island based on wave power generation. The wireless monitoring camera comprises a base, a camera and a plurality of wave power generation devices. The bottom portion of the camera is fixedly arranged on the top portion of the base; the middle portion of the base is provided with a storage battery pack; the input end of the storage battery pack is electrically connected with the output ends of the wave power generation devices; a router is arranged above the storage battery pack; the output end of the storage battery pack is electrically connected with the router and the camera; one end of the router is connected with the camera; the output end of the router is connected with an intelligent mobile phone or a tablet PC through a WIFI wireless network; and the output end of the router is connected with a local server through a network cable. The wireless monitoring camera enhances island monitoring capability of island armies, can prevent intrusion of uninvited guests and saves a lot of resource and finance consumption.

The invention discloses a speed reduction belt which can be turned into an isolation pile, comprising a driving device, a trapezoidal foldable combined speed reduction belt, a guide rail plate, a guide groove, a slide block, a triangular baffle plate, a support block and the like; the speed reduction belt comprises a driving device and a trapezoidal foldable combined speed reduction belt. The bottom plate of the speed reduction belt is mainly composed of a guide rail plate, a guide groove and a triangular baffle plate, wherein the guide groove is arranged in the guide rail plate, and the triangular baffle plate is arranged at both ends of the guide rail plate. The two inclined surfaces of the speed reduction belt are articulated with the top surface, the inclined surface can rotate aroundthe top surface, the bottom end of the inclined surface is articulated with the slider, the slider is connected with the driving device, and the slider can slide in the guide groove. The device normally is a trapezoidal speed-down belt. If it is necessary to block the passage of a motor vehicle, the driving device controls the speed-down belt to slide in the middle of two oblique faces, and can beused as an isolation pile when the top plate is lifted and the side surface is vertical. The driving device controls the speed-down belt to slide on both oblique faces, and then the speed-down belt can be changed back. The device can be installed in the road section, in front of the unit door and other positions, and can play the function of decelerating and blocking the motor vehicle.

The invention discloses a gate driven by a cam structure. The gate driven by the cam structure comprises a machine frame, a gate plate and a motor. The motor is fixed on the machine frame, the gate plate is hinged to the machine frame, a cam is sleeved on a rotary shaft of the motor, the motor drives the cam to rotate, a locking device used for being matched with the cam in operation is arranged between the cam and the gate plate, and the cam drives the gate plate to open and close under the coordination of the locking device. A link mechanism is used for driving the gate plate to close and open by most current gates, a speed feedback device and a control system need to be additionally arranged to achieve the ideal speed curve needed by the gate plate, the cost of the device is high, noise can be generated if the link mechanism is installed inappropriately, and the service life of the link mechanism is influenced. Due to the simple control of the motor, control over the opening and closing speed of the gate plate identical to the ideal gate opening and gate closing speed suitable for normal passing speed of passengers is achieved, installation is simple, and cost is low.

The invention discloses a security anti-theft door, which comprises a wall, a door shaft, a key hole, a sub-door handle, a sub-door, a sub-door shaft, a camera, a door, a buffer pad, a peephole, a display screen, a door handle, a rack and a gear , door latch, fireproof layer, sound insulation layer, waterproof layer and sub-door latch, the peephole is installed on the central axis of the gate and is located at the upper part, the gate is a thickened structure, from the inside to the waterproof layer, the sound insulation layer and the fireproof layer , the door handle is installed on the lower side of the other side of the door, and a door lock is also provided under the door handle, the rack is connected to the upper surface of the door bolt by welding, and the gear is fixed on the front of the rack. above, and the gear and the rack are meshed and connected inside the gate, the two ends of the central axis of the gear are sleeved on the bearings, and the bearings are fixed on the inner walls of both sides inside the gate, the axis position of the central axis of the gear is set There is a keyhole.

The invention discloses a group chat device and a group chat method. The group chat device applied to a first mobile terminal comprises an acquisition module and a processing module; the acquisition module is used for acquiring a first identifier of a first chat group which contains at least one inherent member; the processing module is used for initiating a first add request according to the first identifier, a second chat group is established through a server on the basis of the first add request, and the second chat group is a new chat group formed by the inherent members of the first chatgroup and members corresponding to the first mobile terminal. By the arrangement, the new chat groups containing the inherent members can be established quickly, and needs for newly-established chat groups for multiple users are met.

The invention relates to an intelligent home security and protection system based on the Internet of Things. The system comprises an intelligent communication terminal and a safety door and window monitoring mechanism. The safety door and window monitoring mechanism comprises a monitoring coil, a safety door and a handle; and the monitoring coil locates font of the safety door, and the handle is disposed on one side of the safety door. According to the intelligent home security and protection system based on the Internet of Things, a user can monitor a state of the safety door and window in real time through the intelligent communication terminal, and, when a person enters an area of the monitoring coil, an electromagnetic pulse is sent out by the handle to remind an intruder and prevent the intruder from intruding. Circuit structure is simple, so production cost is reduced. A power supply charges a second capacitor through a first triode and a second triode, delay control is performed on a relay, the service life of a seventh triode is improved, and power consumption of the system is also reduced.

The invention discloses a pedestrian path management system. The management system comprises a pedestrian path, a gate is connected with the pedestrian path movably, a first drive motor is fixedly mounted on the surface of the pedestrian path and corresponding to the position of the gate, an entrance radio frequency card-reading device is connected to the surface of the pedestrian path by bolts and positioned on one side of the gate, and an entrance head statistical camera is connected with the surface of the pedestrian path by the bolts and located on one side of the entrance radio frequencycard-reading device; an existing radio frequency card-reading device is connected to the surface of the pedestrian path by the bolts and positioned on the other side of the gate, and an existing headstatistical camera is connected with the surface of the pedestrian path by the bolts and located on one side of the existing radio frequency card-reading device. The system can effectively prevent theunidentified person from entering the rush hour and improve the security, and solves the problem that the existing pedestrian path management system cannot effectively prevent the intrusion of the unidentified person while the rush hour, and the security is low.

The invention mainly provides a light beam generating device for generating a visible boundary, an electronic boundary system and a method, and belongs to the field of unmanned aerial vehicles. The device includes: at least one light source device, which is arranged on the electronic boundary device, wherein the electronic boundary device is used to set the flight area of ​​the UAV, and the electronic boundary device is set independently of the UAV, and The flight area of ​​the unmanned aerial vehicle is determined based on the position information of the electronic boundary device; the light source device emits a visible light beam for prompting the range of the flight area. By adopting the above solution, the visible boundary of the flight area of ​​the UAV can be formed, which facilitates the onlookers to clearly know the scope of the flight area, and improves the flight safety of the UAV.

The invention relates to the field of road safety, in particular to a road surface warning protection frame for road construction, which comprises a supporting seat, a speed reduction limiting mechanism, a clamping mechanism and the like, a speed reduction limiting mechanism is arranged on the supporting seat, and the clamping mechanism is arranged on the supporting seat. Through the deceleration limiting mechanism, the automobile wheels make contact with the slope block, the automobile wheels push the slope block to move downwards, the slope block buffers the automobile wheels through the action of the buffer spring, so that the automobile is decelerated, the slope block moves downwards to push the swing groove rod to swing, and the swing groove rod swings to drive the limiting plate to move upwards; and the limiting plate moves upwards to limit the wheels, so that the automobile cannot move forwards continuously.

The invention discloses a visual minimally invasive diagnosis and treatment trolley which comprises a flushing treatment instrument, an endoscope ultrasonic system and a diagnosis and treatment trolley. The flushing treatment instrument comprises a flushing and sucking device, a positive and negative pressure loading system and an infusion apparatus or further comprises a sucked liquid storage device. An outlet of the infusion apparatus communicates with a positive pressure end of the positive and negative pressure loading system and then communicates with an inlet of the flushing and suckingdevice; an outlet of the flushing and sucking device communicates with the negative pressure of the positive and negative pressure loading system or communicates with the negative pressure through thesucked liquid storage device; the flushing and sucking device comprises a joint flushing needle and a flushing and sucking device handle; and a releasing head is arranged at the front end of a needletube of the joint flushing needle, a plurality of needle holes are formed in the side of the needle tube, the flushing direction of the needle holes at least comprises the inclination direction towards the releasing head, and the flushing and sucking device handle can form a flushing line connected with a flushing sealing cavity and a water sucking line connected with a water sucking sealing cavity through a finger pressing valve. By adopting the endoscope ultrasonic system, the internal condition of a focus can be known in detail or puncture, biopsy or surgical operation can be executed, sothat the operation accuracy is improved, and the surgical efficiency is greatly improved.