38results about How to "To achieve the purpose of alarm" patented technology

A method for detecting a network data package comprises the following steps of A) capturing the data package in a network, B) carrying out full protocol stack analysis on the captured data package to obtain protocol variable characteristics, namely, the data of all protocol layers of the original message data package; C) firstly selecting the most suitable multi-mode matching algorithm according to preset mode characteristics and the protocol variable characteristics, and then loading a mode matching algorithm library, and D) dynamically regulating the matching algorithm in the detection process according to a current network state. The full protocol stack analysis is carried out on the data package, decoding speed is greatly improved, real-time decoding requirements are met, and needs for server memory are reduced. In addition, the proper mode matching algorithm is flexibly selected for detected loopholes, matching speed and storage space are optimal, and effective protection on high-level escape invasion is achieved through a high-level reclusion technology.

The invention discloses an intrinsically safe mine pressure alarm for a mine, which comprises a cylindrical joint, wherein one end of the cylindrical joint is opened, and the other end of the cylindrical joint is closed; the opened end of the cylindrical joint is internally sleeved with a valve cylinder; the diameter of the outer wall of the valve cylinder, which is arranged in the cylindrical joint, is less than the inner diameter of the cylindrical joint; the valve cylinder is in thread matching sealing with the cylindrical joint at the opened end of the cylindrical joint; a piston cavity is formed by inner sides of the outer walls of the cylindrical joint and the valve cylinder, which are in matching sealing; a piston is arranged in the valve cylinder; a convex plate which is higher than a piston body is arranged on the piston; a spring is sleeved on one end of the convex plate, which is far away from the cylindrical joint and is close to the opened end of the cylindrical joint; a cylindrical valve cylinder is arranged outside the spring; the other end of the piston is positioned in the piston cavity, and a shaft sleeve is sleeved at the outer part of the piston in a sliding manner; and the shaft sleeve is in external limit and sliding matching with the inner wall of the valve cylinder. The intrinsically safe mine pressure alarm has the advantages of convenience in processing, accuracy in measurement and long service life.

The invention discloses an alarm system for prevention of crowd treading. The system comprises a human body obstruction device, a pressure sensing device, an alarm device, a power source device and a voice device, wherein the human body obstruction device also comprises a main air bag and a plurality of branch air bags which are installed and disposed outside the main air bag at an equal interval; and when the branch air bags are broken thanks to extrusion taking place in a crowd dense area, a spring of the pressure sensing device can stay at a stretched state, the power source device, the alarm device and the pressure sensing device can form a circuit loop, the alarm device can be started, and the voice device can send out a voice alarm announcement. The wearable human body obstruction devices are issued to people in a large-scale crowd collective activity, so that the alarm device in the human body obstruction device can send out alarm information when an emergency situation takes place in the crowd dense area. In this way, the objective of anti-treading alarming is realized. The system disclosed by the invention is characterized by simple, convenient and rapid operations and low cost.

The invention provides a network intrusion detection method which comprises the following steps: A) capturing data packages in a network; B) carrying out full protocol stack analysis on the captured data packages to obtain protocol variables, that is, each protocol layer data of an original message data package; C) compiling a regular expression rule set into a DFA state transition table through a deterministic finite-state machine, and compressing the DFA state transition table; D) writing the analyzed data in the step B) to the compressed DFA state transition table to carry out matching; and E) outputting the matching result. According to the network intrusion detection method, the data packages are subjected to the full protocol stack analysis, thereby greatly improving the decoding speed, meeting the requirement for real-time decoding, and reducing the demand for the internal storage of a server; and the high-speed message matching is realized through the DFA state transition table, so that accurate detection and defense can be carried out on the existing threat, and advanced evasion technique can be accurately identified and removed.

The invention relates to an overspeed alarm which comprises magnets, a coil, electric brushes, an electromagnet, an armature, a spring, a working power supply, an alarm lamp and an alarm bell. The coil is connected with an axle and arranged in a magnetic filed of the magnets; both ends of the coil are respectively connected with the electric brushes which are connected with the electromagnet to form a closed circuit; and the armature in a working circuit is matched with the electromagnet and connected with the spring; and the armature, the spring, the alarm lamp and the alarm bell are sequentially connected with the working power supply 7 to form the working circuit. By the adoption of the structure, when a vehicle is overspeed, the axle can rotate extremely rapidly so that the coil is driven to rapidly rotate, move cutting magnetic lines of force in the magnetic field, and generate an induced current; accordingly, the electromagnet suctions the armature to switch on the working circuit, and the alarm lamp and the alarm bell simultaneously work to achieve the alarm aim.

The invention discloses a temperature sensitive combination switch parallel connection with simple and rational structure, convenient use, high sensitivity and good reliability in the technical field of a temperature sensitive switch; an outer cover is provided with a cavity; some fixed terminals stretch into the cavity of the outer cover from an end of the outer cover; the other fixed terminals are arranged outside the outer cover; a bimetallic element is fixedly arranged in the cavity of the outer cover; one end of the bimetallic element is connected electrically with the fixed terminal in the cavity of the outer cover; a silver contact is arranged on a lower side face or an upper side face of another end of the bimetallic element; a silver contact piece is correspondingly arranged above or under the bimetallic element; one end of the silver contact piece is detached from the silver contact; a pin of a thermal resistor is connected electrically with another end of the silver contact piece; another pin of the thermal resistor is connected electrically with the fixed terminal; one end of a welding terminal is connected electrically with the silver contact piece; and another end of the welding terminal stretches out from another end of the outer cover and is arranged outside the outer cover.

A linetyped temperature perceptive component with windows mounted on the insulating layer is disclosed. It includes an oversheath, two detecting conductors and a insulating layer; two detecting conductors are mounted parallel in the inner oversheath by twisted type, and at least one of them is memory alloy thread; the insulating layer coats the outer periphery of arbitrary one of two detecting conductors, one or several spaced windows are formed on the twisted extruded surface between two detecting conductors. The linetyped temperature perceptive component with windows mounted on the insulating layer is heated to make the detecting conductor made of the memory alloy thread extend from the window according the characteristic, and contact with the detecting conductor mounted parallel to generate short circuit to reach the target of alarm. Because the wolliness of memory alloy thread is good, it's convenient to install, and it has high corrosion resistance, so the production has high reliability.

The invention relates to the field of a machine room device, in particular to a circuit machine case. The circuit machine case comprises a box body, wherein a temperature sensor and a smoke sensor are arranged in the box body and both are connected with a programmable logic controller (PLC) control mainboard, the PLC control mainboard is connected with an alarm device and a main negative-pressure fan and is used for judging whether the alarm device is triggered to give out a warning signal or not and whether the main negative-pressure fan is started or not according to sensing signals of the temperature sensor and the smoke sensor, and the main negative-pressure fan is used for absorbing heat in the box body. The PLC control mainboard is used for judging temperature and smoke states in the box body according to the sensing signals of the temperature sensor and the smoke sensor, corresponding temperature reduction processing is further performed and / or a warning is triggered, the warning is triggered as well as the temperature is automatically reduced on the condition of no inspection staff, and a fire alarm is triggered on the condition of excessive large smoke.

The invention relates to an electric kettle with a water level detection function. The electric kettle comprises a kettle body and a main control board, and a water level scale is arranged on the kettle body; conductive water level detection films are arranged integrally on the inner side of the kettle body, and the water level scale is composed of one or more water level detection films; the water level detection films are exposed on the inner wall of the kettle body in a flat mode; the bottom of an inner chamber of the kettle body is provided with a conductive public electric sheet, and the public electric sheet is connected with the main control board; the main control board is connected with the water level detection films and the public electric sheet through a corresponding connecting wire which is arranged on the inner side of the kettle body in an integrated way; and with the rise of a water level, a water body contacts with a corresponding water level detection film, the public electric sheet is in communication with a corresponding water level detection film in an conductive mode to form a loop, corresponding loop information is fed back to the main control board, and the main control board executes a corresponding instruction. The electric kettle has the advantages that design is simple, the structure is reasonable, performance is reliable, healthy drinking water for users is guaranteed, cleaning is convenient, integrity is good, additional assembling is not needed, and safety is good.

The disclosure relates to an environment monitoring method and apparatus. The method applied to the environment monitoring apparatus comprises the steps of detecting a moving object within a preset range; generating reported data when the moving object is detected; and transmitting the reported data to a terminal, wherein the terminal is connected with the environmental monitoring apparatus in a paring mode, and the terminal determines whether or not an alarm is to be performed based on the reported data. The method is used for detecting environmental conditions within a certain scope to reach purpose of giving an alarm when other mobile objects approach.

The invention discloses a grounding fault detecting circuit which comprises the components of a three-phase vector input circuit, a first-stage adder circuit, a first window comparing circuit, a second window comparing circuit and a detecting-and-alarming processing circuit. The three-phase vector input circuit is connected with the first-grade adder circuit. The first-grade adder circuit is connected with the first window comparing circuit and the second window comparing circuit. The first window comparing circuit and the second window comparing circuit are connected with the detecting-and-alarming processing circuit. The detecting-and-alarming processing circuit is internally provided with a resistor R14, a resistor R15, a diode D3, a diode D4, a diode D5 and a capacitor C2. The second end of the resistor R14 is connected with the cathode of the diode D13 and is furthermore connected with the first end of the capacitor C2, the first end of the resistor R15, the anode of the diode D4 and the cathode of the diode D5, thereby realizing a hardware structure which is designed for detecting and analyzing the fault. The grounding fault detecting circuit has advantages of simple operation, high sensitivity in use, etc.

The transfusion device with alarm unit as one medicine equipment includes liquid inlet pipe, buffering funnel and liquid outlet pipe, and features that there are iron float set inside the buffering funnel, connecting board outside the lower part of the funnel, magnetic moving touch plate matching the connecting board and corresponding contact. The transfusion device has smart structure, and has alarm circuit turned on via the mutually attracted iron float and magnetic moving touch plate to realize alarming.

The invention discloses a fault earthing detection circuit powered based on filtering by a PI filter. The circuit comprises a step-down transformer T, a rectifier circuit, a PI RC filter circuit, a voltage regulator tube Z1 and a fault detection processing circuit, which are connected in sequence. A bridge rectifier is arranged in the rectifier circuit, the AC input end of the bridge rectifier is connected with the secondary end of the step-down transformer T, and the DC output end of the bridge rectifier is connected with input end of the PI RC filter circuit. A capacitor C3, a resistor R16 and a capacitor C4 are arranged in the PI RC filter circuit. The capacitor C3 is connected to the DC output end of the bridge rectifier. A first end of the capacitor C3 is connected with a first end of the resistor R16. A second end of the resistor R16 is connected with a first end of the capacitor C4. A second end of the capacitor C4 is connected with a second end of the capacitor C3. Inaccurate fault detection caused by unstable voltage fluctuation is avoided.

The invention relates to a wear-resistant vibration cable with multiple parallel cores. An inner sheath layer is coaxially sleeved in an outer sheath layer; an outer sheath adopts a wear-resistant flame-retardant polyurethane material, and the inner sheath layer adopts a polyethylene material; an elliptic polyester aluminum-plastic composite layer is coaxially sleeved in the inner sheath layer, a metal woven mesh is coaxially embedded in the polyester aluminum-plastic composite layer, a polyester film layer is coaxially sleeved in the polyester aluminum-plastic composite layer, and two directionally-slotted rubber magnetic stripes which are parallelly arranged on an upper part and a lower part along a cable direction and have different magnetic properties are coaxially sleeved in the polyester film layer; and parallel integrated signal wires are arranged on the center part in the two directionally-slotted rubber magnetic stripes, and a vibration line in mirror symmetry is movably arranged in each directionally-slotted rubber magnetic stripe between the parallel integrated signal wires and the polyester film layer. The vibration cable opens up a new path in the field of warning cables, has an intelligent warning function with a very low rate of false alarm and has strong blocking effect and deterrent effect, so that the perimeter security precaution technology of China goes up to a new stage.

The invention discloses an intelligent Internet of Things controller with an alarm function. The intelligent Internet of Things controller comprises a water tank, wherein a protection box is fixedly connected to the top of the water tank, a water pump is fixedly connected to the bottom of the inner wall of the water tank, and a water cooling pipe is fixedly connected to the top of the water pump. According to the scheme, through the arrangement of the water pump, cooled water in the water tank can be conveyed into the protection box, so that the interior of the protection box is cooled, and the situation that the controller is damaged due to the fact that the controller cannot be cooled in time is avoided; through the arrangement of the moisture absorber, moisture is absorbed when moisture in the protection box is too heavy, so that the influence on the service life of an electric appliance due to too heavy moisture in the protection box is avoided; by arranging a rotating motor, the rotating motor works to drive fan blades to rotate, so that dust adsorbed to the surface of the controller can be blown away, and cold air emitted by a water cooling pipe can be blown away to all corners in the protection box; and the whole device is reasonable in structure, convenient to use, and high in practicality.

The invention provides an intelligent management terminal for 10KV box type substations. The intelligent management terminal for the 10KV box type substations comprises a power source circuit and a single-chip microcomputer; the input ends of the single-chip microcomputer are connected with the output ends of a box door opening induction switch, a temperature detection unit and a magnetic line monitoring unit respectively; the output ends of the single-chip microcomputer are connected with the input ends of an image pickup unit, a memory storage unit and a GSM network communication module; the image pickup unit is connected with a camera and an image pickup memory image processing unit; and the image pickup memory image processing unit is connected with the single-chip microcomputer. According to the intelligent management terminal for the 10KV box type substations of the invention, the single-chip microcomputer sends control signals to the image pickup unit according to obtained door opening information, temperature information and magnetic intensity change information; the camera sends acquired field pictures to the single-chip microcomputer; the single-chip microcomputer sends picture information to the mobile phone of an administrator through a GSM network communication module; and therefore, warning can be performed. The intelligent management terminal for the 10KV box type substations has the advantages of simple structure, high timeliness of monitoring, accurate obtained information, automatic warning and the like.

The invention discloses a pluggable wireless network and positioning storage battery, and the storage battery comprises a positioning mechanism, a positive pole electric column, a storage battery mainbody, a negative pole electric column, a battery shell, a support strip, a damping mechanism, a buffer strip and a fixing strip, wherein the left side and the right side of the bottom of the batteryshell are fixedly connected with the top of the support strip; the bottom in the battery shell is fixedly connected with the bottom of a damping mechanism, the top of the damping mechanism in the battery shell is fixedly connected with the bottom of the storage battery body, and the left and right inner walls in the battery shell are fixedly connected with the outer sides of fixing strips. According to the pluggable wireless network and positioning storage battery, when the storage battery is subjected to vibration, the received vibration can be counteracted and eliminated through the dampingsprings, meanwhile, the arranged spring strips can further achieve the good damping effect through the arranged spring strips when the vibration is counteracted and eliminated, so the problem that thestorage battery cannot work normally due to the fact that vibration is directly transmitted to the storage battery when the storage battery is vibrated is effectively solved.

The invention belongs to the technical field of electric equipment, particularly relating to a no-water protection device of a movable electric water heater. The no-water protection device of a movable electric water heater comprises a water level sensor which is installed in the movable electric water heater; the water level sensor is connected with a signal inductor, the signal inductor is connected with the control circuit, and the control circuit controls the on and off and no-water alarm of the electrical heated tube of the movable electric water heater. When the water level is lower than a set safety line, the signal inductor of the no-water protection device of the invention is switched on the circuit of an alarming part, and a music chip and a loudspeaker work to achieve the purpose of giving an alarm; and meanwhile, the electrical heated tube circuit is in the state of power failure, so that the electrical heated tube stops working and does not heat water in the water tank. The invention has simple structure and is practical, safe and reliable.

The invention provides a mobile induction wireless alarm device and system, and the device comprises a microwave induction circuit module, an LED lamp / buzzer control circuit module, a wireless transmission circuit module, an MCU main control module, and a USB power supply circuit module which is used for supplying power to the MCU main control module. The microwave induction circuit module is usedfor converting changes of reflected waves generated by detecting object movement into electric signals to be output according to the Doppler principle. The MCU main control module performs AD conversion on the electric signals into digital signals for logic processing to obtain an MCU processing result; the wireless transmission line module is used for wirelessly transmitting the MCU processing result; and the LED lamp / buzzer control circuit module is used for giving a light alarm / sound alarm according to the MCU processing result. The advantage of the invention is that the more precise detection and alarm of a moving object can be achieved.

The invention provides a temperature control alarming system of a large-power electrodeless lamp ultraviolet radiation cavity and a temperature control alarming method of the temperature control alarming system, and relates to the technical field of ultraviolet crosslinking. The system and the method solve the problems that when an existing ultraviolet crosslinking high-voltage cable works, the temperature cannot be obtained and temperature ranges cannot be controlled. The system forms a closed loop through a temperature sensor, a signal adjustment amplification and multi-channel data collection unit, a blower, a suction fan and a control unit, so the temperature of a large-power magnetic control tube can be obtained in real time when the large-power electrodeless lamp ultraviolet radiation cavity works, the temperature is regulated through the blower, the suction fan and the control unit, and the alarming purpose is achieved through an audible and visual alarm. According to the method, control is achieved according to changing trends of the temperature maximum value of detected temperature points at a certain moment and the temperature maximum value of the detected temperature points at the next moment, control of the temperature of the electrodeless lamp ultraviolet radiation cavity is achieved, and operators can conveniently and timely maintain the system through the audible and visual alarm. The system and the method are suitable for the technical field of the ultraviolet crosslinking.

The invention relates to the technical field of medical instruments and in particular to a newborn air and oxygen mixer. The newborn air and oxygen mixer comprises a breather pipe, a fan and a housing. The housing comprises a rear cover, a front cover, a left cover and a right cover. The left cover is provided with an air inlet through hole matched with a first air through hole in the breather pipe. The right cover is provided with an air outlet through hole matched with a second air through hole in the breather pipe. The fan is connected with a fan fixing base installed at the outer side of athird air through hole in the breather pipe. A mainboard unit is further installed between the breather pipe and the front cover. The fan is connected with the mainboard unit. The mainboard unit is provided with a button. The button is provided with a silica gel key. A bulge of the silica gel key passes through a key through hole in the front cover. The device is designed in an integrated-type, novel in structure, small in volume, and convenient for carrying.

The invention discloses a safety child seat based on child restraint, comprising a child safety seat. The child safety seat is provided with a mounting base, a height adjuster, a seat body, a movable guardrail and an X-shaped restraint in sequence from bottom to top. Belt and elastic adjustment mechanism, the lower end of the height adjuster is inserted on the installation base and the upper end is connected with the seat body. The seat body is composed of a cushion, a backrest and a leg extension groove. There are two groups and are processed and formed on the front side of the seat cushion. Airbag cushions are embedded in the leg extension grooves. The movable guardrail is movably arranged on the front side of the seat body. One side of the movable guardrail is connected to the seat body through a hinge. It is flexibly connected and the other side is snapped on the edge of the seat body. In the present invention, a lift-type adjustment mechanism is designed at the bottom of the installation seat, and the height of the safety seat can be quickly adjusted according to the height of the vehicle roof and the height of the child.

The invention provides a resonant long-acting standby wireless door magnetic system which comprises a power supply, a magnetic switch connected with the power supply, a control circuit connected withthe magnetic switch, and a mode selection circuit and an alarm warning device connected with the control circuit. The resonant long-acting standby wireless door magnetic system is characterized in that the control circuit comprises a resonance circuit, a control chip IC, a triode VT1, a triode VT2 and a triode VT3. The structure is simple, and the cost is low. The working state can be selected bythe control mode selection circuit of the control circuit, and the time for sending the control signal is selected, so that the electric quantity required to be consumed by sending the control signalis reduced, and electricity can be saved. The service life of the battery of the resonant long-acting standby wireless door magnetic system can be prolonged, and the resonant long-acting standby wireless door magnetic system is suitable for popularization and use.

The invention discloses a breathable safe anti-skid shoe with a positioning monitoring system. The shoe comprises a shoe body and a shoe plate arranged on the lower surface of the shoe body, a detachable antiskid sheet is arranged in the mounting groove of the shoe plate; a plurality of anti-skid protrusions are distributed on the side wall of an anti-skid piece, a plurality of anti-skid strips are arranged on the side wall of the anti-skid piece at equal intervals, positioning mechanisms are arranged on the upper side and the lower side of the anti-skid piece, a sliding cavity is formed in the shoe plate, and a fixing mechanism used for fixing the anti-skid piece is arranged in the sliding cavity. The invention is reasonable in structural design, the anti-skid effect is further improved by utilizing the anti-skid bulges and the adsorption holes; the shoe is simple in structure and convenient to use when a user goes out, the ventilation and heat dissipation effects are achieved throughthe arrangement of the ventilation holes, the comfort of the temperature in the shoe is kept. A user can conveniently wear the shoe for a long time, real-time positioning and physical condition monitoring can be conducted on the user, and the safety of children and old people is guaranteed.