41 results about "Alarm device" patented technology

The invention discloses an alarm device used for filter core replacing. The alarm device comprises a flow sensor, a controller, a timer and an alarm, wherein the flow sensor is proved in a water channel of a filter core and used for sending sensed current data to the controller, the timer sends the data to the controller when the timer is time out, and the controller determines whether the filter core needs to be replaced or not according to received data and starts the alarm when the filter core needs to be replaced. The alarm device provided in the invention can prompt whether the filter core needs to be replaced or not according to actual usage situation of the filter core, thereby ensuring the water purification effect of the filter core.

The invention discloses a bundling machine control system of a joint harvesting bundling machine. The control system comprises a microcontroller, a wheel hub rotating speed detection device, a bundling machine transmission shaft torque detection device, a straw feed quantity detection device, safety bolts, an anticollision device, an anticollision block position monitoring device, a joint harvesting bundling machine advancing speed control device and a bundling machine abnormal condition alarm device. The bundling machine control system, composed of the wheel hub rotating speed detection device, the bundling machine transmission shaft torque detection device, the straw feed quantity detection device, the anticollision block position monitoring device, the bundling machine abnormal condition alarm device and the microcontroller, of the joint harvesting and bundling integrated machine is adopted, the high efficiency, stability and reliability of the bundling machine of the joint harvesting and bundling integrated machine during the normal working process are achieved, and meanwhile the work efficiency and work environment adapting capacity of the whole joint harvesting and bundling integrated machine are improved. When the bundling machine of the joint harvesting and bundling integrated machine breaks down, an operator can conveniently make timely and accurate judgment, analysis and operation.

The invention discloses an Internet two-dimensional code intelligent lock and a using method thereof in hotel management. The Internet two-dimensional code intelligent lock comprises a processor, and a two-dimensional code recognition module, a face recognition device, a wireless communication module, a Bluetooth module, a power module, a clock module, an electric control lock and a recognition error alarming device which are connected with the processor, and further comprises a storage battery connected with the power module, wherein the wireless communication module is connected with a user terminal and a management terminal respectively through a server; the two-dimensional code recognition module comprises an image recognition unit and a power control unit which are connected with each other; the image recognition unit is connected with the processor. The management terminal is matched with locks through the serve and updates unlocking two-dimensional codes, and in different time periods, different locks correspond to only encrypted codes in different time periods. The Internet two-dimensional code intelligent lock can automatically acquire room renting information statistically, and customers can choose rooms by themselves, so that information is transparent and the safety management of a hotel is effectively enhanced.

The invention discloses a fatigue driving alarm device and alarm method, and belongs to the field of automobile driving alarm. The alarm device comprises a left skin resistance collection module, a left skin temperature collection module, a right skin resistance collection module, a right skin temperature collection module, a left skin resistance constant current source, a left skin temperature constant current source, a right skin resistance constant current source, a right skin temperature constant source, a left skin resistance sampling circuit, a left skin temperature sampling circuit, a right skin resistance sampling circuit, a right skin temperature sampling circuit, a single-chip microcomputer, an alarm module, and a power supply. The device collects the skin resistance and skin temperature signals of the left and right hands, holding a steering wheel, of a driver, converts the skin resistance and skin temperature signals into voltage signals, carries out the averaged statistics of the skin resistance and skin temperature signals in a preset time period, judges the fatigue features of the driver according to the change conditions of statistical values, starts the alarm module, solves problems that a conventional fatigue driving alarm device is not stable and accurate, is strong in anti-interference capability, is accurate in collected data, is accurate in judgment of fatigue features, and is wide in application range.

The invention discloses a fault detection system and method for an electric power grid. The power grid is connected with a detection circuit, a plurality of current transformers are arranged on each of branch lines and are used for acquiring current signals on the power grid, the detection circuit is connected with a fault judging circuit, a photoelectric conversion unit, a fault level judging unit and a signal generator are arranged on the fault judging circuit, the fault judging circuit is connected with an alarm processing circuit, and the alarm processing circuit is also connected with a monitoring center. The fault detection system and method disclosed by the invention have the benefit that as the current transformers are arranged on the detection circuit, the current information on the power grid is obtained through the current transformers, and the information of fault signals is determined through the plurality of judging units and is released through an alarm device and the monitoring center, so that the fault can be removed at the highest speed. The fault detection system disclosed by the invention is simple in structure, convenient to operate and lower in cost.

The invention belongs to fields of electronic protection alarm facilities, specially an electronic protection alarm enclosure which is used in temporary job location or during maintenance work. It includes chassis and backstay fixed to the chassis and voice-light alarm device, battery, power switch and control circuit which is set on the backstay, said alarm belt is enlaced to reeled device, the reeled device is fixed to the backstay, and enlaced to the alarm belt via hinge axis, contact induction device which includes pulse generator and control circuit is set on one end of the hinge axis, hanging belt hook is set on said backstay, said control circuit includes battery low voltage indicating circuit and electronic switching circuit. The invention provides a new type of enclosure which possesses enclosure belt which is adjustable and contact alarm facilities.

The invention discloses a table tennis table, and aims to realize judgment of drop point positioning of the table tennis table. The table tennis table comprises a table body, a signal comparison device, an alarm device, a first triboelectric touch sensor which is arranged close to the upper edge of the side surface of the table body, and a second triboelectric touch sensor which is arranged closeto the lower edge of the side surface of the table body, wherein the first triboelectric touch sensor, the second triboelectric touch sensor and the alarm device are connected with the signal comparison device; and the signal comparison device is used for controlling the alarm device to send out a corresponding alarm signal according to the comparison result of the peak value of the electric signal acquired by the first triboelectric touch sensor and the peak value of the electric signal acquired by the second triboelectric touch sensor.

The invention discloses a squeezing safety and automatic alarm device of a diaphragm filter press. According to the device, a PLC (Programmable Logic Controller) is arranged to automatically control the operation; a digital display pressure controller is arranged on an oil cylinder body of a hydraulic system; an intelligent pressure transmitter is arranged on a diaphragm squeezing water pipeline;the digital display pressure controller and the intelligent pressure transmitter are connected with the PLC; a pressure switch is connected with the intelligent pressure transmitter; a text display device is connected with the PLC; a buzzer alarm is connected with the PLC; a squeezing pump switch is connected with the intelligent pressure transmitter; a hydraulic pump switch is connected with thedigital display pressure controller; the digital display pressure controller is installed on the oil cylinder body of the hydraulic system; and the digital display pressure controller is provided witha pressure contact lower limit, a pressure contact upper limit and a pressure contact ultimate upper limit. According to the invention, the use safety of the whole equipment of the diaphragm filter press is ensured, a burst accident is avoided during squeezing of a diaphragm filter plate, the safety of personnel on a working site is ensured, and the economic benefit is improved.

The invention provides a system of a mobile communication terminal trace with wireless RF identify function. The system contains a control unit, a wireless RF identify device and an alarm device that are electrical connected each other and are installed on a body for receiving a wireless RF identifying code signal of a wireless RF identify label installed on a mobile communication terminal and generating an alarm in a pinch.

The invention relates to a function safety monitoring development and demonstration system for major hazard source equipment and belongs to the technical field of function safety monitoring. The system comprises a safety control cabinet, a safe PLC (programmable logic controller) arranged in the safety control cabinet, a pattern touch terminal, safety input equipment, and safety output equipment, and also comprises a quadrangle frame and an apparatus layer which are connected into a whole up and down, a safety grating, a non-contact magnetic safety door, a mechanical safety door, an alarm device, an operation button, and a safety carpet, wherein the safety grating, the non-contact magnetic safety door and the mechanical safety door are arranged at three sides of the quadrangle frame; the alarm device is arranged above the quadrangle frame; the operation button is arranged on a panel of the apparatus layer; the safety carpet is arranged on the ground at one side of the quadrangle frame, and monitored high-speed rotation equipment is arranged inside the quadrangle frame. The system provides four effective protective measures, and problems that operating personnel enter into a danger area or various human injuries caused by misoperation are effectively avoided.

The invention provides an anti-explosion monitoring system for a coal mine. The anti-explosion monitoring system for the coal mine comprises a monitoring center positioned above a mine shaft, one or multiple underground substations positioned under the mine shaft and a monitoring device connected with the underground substations. The monitoring center comprises a monitoring mainframe, a database system, a display device and an alerting device. The monitoring device comprises a processor module, a sensor module, a nixie tube displaying module and an acousto-optical alerting module. The processor module is connected with the underground substations through a wireless transmission module. The underground substations are connected with the monitoring mainframe through a RS-485 bus. The anti-explosion monitoring system for the coal mine has the advantages that the gas concentration under the mine shaft is effectively monitored, the accuracy degree and the stability of monitoring of the system are improved, and the flexibility and the extendable capability of the system are improved.

The invention discloses a black box fire monitoring and alarming system for a ship. The black box fire monitoring and alarming system for the ship comprises multiple fire monitoring and alarming devices which are arranged on the ship, a black box and a fire monitoring and controlling computer, wherein the black box and the fire monitoring and controlling computer are arranged in a wheelhouse, each fire monitoring and alarming device comprises a fire monitoring controller module, a first CAN bus communication circuit module, a Flash memorizer module, a smoke detector, a heat detector and a manually-operated call button, a main control board, a power supply, a data storage unit and a communication unit are integrated in the black box, a central processing unit, a chipset, a CAN bus interface circuit module, an RJ45 interface circuit module and an internal storage are arranged on the main control board, and the communication unit comprises a second CAN bus communication circuit module, a short message gateway and a network interface card. The black box fire monitoring and alarming system for the ship is simple in structure, reasonable in design and high in degree of intelligentization, real-time detection is achieved, real-time transmission is achieved, rapid alarming is achieved, the occurrence rate of fire is decreased, the life safety of people is guaranteed, the use effect is good, and the system can be popularized and used easily.

The invention relates to a sound-light alarm device. The sound-light alarm device is composed of a cabinet, a solar panel, a controller, a data interface, a clamping holder, a light sensor, a camera, a base, a sign board and a storage battery; the sign board is a sign board with an ultrasonic detection function and a sound-light prompting function; signs and prompting sound on the sign board are set according to use conditions; since the sound-light alarm device is provided with the data interface, connection between each part can be facilitated when the sign board is replaced; since the sound-light alarm device is provided with the light sensor, switching between sound prompting and light prompting is facilitated, and therefore, people will not be disturbed by the sound-light alarm device at night; since the sound-light alarm device is provided with the camera, the activities of people around the sound-light alarm device can be recorded in real time; since the sound-light alarm device is provided with an ultrasonic detection module, people passing the sound-light alarm device can be prompted to pay attention to safety at a long distance, and therefore, a safe distance is increased; the sign board can be replaced conveniently according to conditions, and therefore, the sound-light alarm device has high universality; and the sound-light alarm device is simple and convenient, and therefore, the sound-light alarm device has a high practical and promotion value.

The invention discloses an intelligent paying-off device for power construction. The intelligent paying-off device comprises a base, trundles, a wire post, a wire/cable, a limiting device, a position detection device, an obstacle detection device, an alarm device and a control device. The position detection device, the obstacle detection device and the alarm device are arranged in the limiting device, and the control device is arranged on the base. The control device is internally provided with an input mechanism, a drive mechanism, a power supply mechanism and a control mechanism. The position detection device, the obstacle detection device, the alarm device, the input mechanism, the drive mechanism and the power supply mechanism are connected with the control mechanism. The paying-off device is provided with the position detection device so that the position where the paying-off device arrives can be detected, data detected through the position detection device is compared with an input appointed position, and then the running path of the paying-off device is constantly planned through a path planning module; and meanwhile, the paying-off device is internally provided with the obstacle detection device, and the running safety of the paying-off device is greatly improved.

The invention proposes a marine security system, which comprises at least two different monitoring elements (IRC, IRS) and a controller (PC) connected thereto in particular for warding off pirates, said controller triggering an alarm and/or activating alarm devices as a function of the displays of the different monitoring elements. In addition, at least two separate line systems (LA, LB) and outlets (DA, DB) connected thereto are provided, from which at least one substance can be discharged. In the event of an alarm, at least one substance is specifically supplied to the outlets (DA, DB), wherein said outlets are installed in different locations or sections (A1-A5, B1-B5) of the hull (S) and can be specifically activated there. The outlets (DA, DB) may also have different designs in order to optimally discharge the respective substance, for example by atomizing, nebulizing, spraying or pouring.

The invention discloses an electric meter alarm, which comprises an electric meter, wherein the electric meter is connected with the input of a controller; the output of the controller is connected with an alarming device; the controller is provided with an output antenna, and forms wireless connection with a mobile communication terminal through the output antenna 4; the controller and the alarming device are arranged in a shell; when the controller receives that the surplus electricity of the electric meter reaches a set value, the alarming device is started to give an alarm and a prompt, and meanwhile, the alarm and the prompt are transmitted to the mobile communication terminal to notify a related person and the like in a short message manner by the controller through the antenna. The controller and the alarming device are arranged in the shell, so that the electric meter alarm is compact in overall structure and convenient to mount and use.

The invention discloses a vehicle-mounted automatic emergency glass breaking intelligent control system and method. The vehicle-mounted automatic emergency glass breaking intelligent control system comprises a controller, a critical situation detecting device and an automatic emergency glass breaking device. The controller is connected with an alarm device and provided with a car power source input port, a self-contained power source input port and a power source output port. The car power source input port is in a normally-closed state, the self-contained power source input port is in a normally-opened state, and the power source output port is connected to the automatic emergency glass breaking device. The controller is provided with a control switch for controlling on-off of a power source output by the power source output port, and the critical situation detecting device is connected to the controller. The controller is further connected with a human body detector, so that the dangerous situation in a vehicle can be detected in real time, and automatic emergency glass breaking for first aid is achieved, the travelling safety is improved to a great extent, and the problem that as for a traditional technology, under the emergency situation, glass is difficulty broken effectively for first aid is solved.

The invention provides an induction alarm for preventing a patient from falling off a bed. The induction alarm comprises a shell; a transmitting device and an alarm device are arranged on the outer surface of the shell; a microprocessor and a power supply are arranged in the shell; the microprocessor is connected with the power supply, the transmitting device and the alarm device; the power supply is connected with the transmitting device and the alarm device; the microprocessor is connected with a user side through the Internet; the shell is connected with one end of an adjusting rod, and the other end of the adjusting rod is connected with a fixing device. According to the invention, the shell is fixed on a bed head or a bed rail through the fixing device; through the adjusting rod, theshell direction is adjusted, and the infrared beams emitted by the transmitting device are parallel to the edge of the bed body; when an elderly patient sits up or gets out of bed, the elderly patient touches the infrared light beams, an infrared sensor sends a signal to the microprocessor, the microprocessor sends the signal to the alarm device, the alarm device is driven to give an alarm, and accompanying persons are warned; the patient is prevented from falling down or falling off the bed; the safety of the patient is ensured; and recovery of the patient is facilitated.

The invention discloses a household early earthquake electronic alarm device. The household early earthquake electronic alarm device is characterized by comprising a 6V direct-current power source, two paths of monitor probes, a bridge balance circuit and a buzzer driving circuit. The bridge balance circuit is composed of the two paths of monitor probes, a PNP type transistor VT1, a PNP type transistor VT2, a resistor R3, a resistor R4, a linear potentiometer RP, a resistor R5 and an electrolytic capacitor C1, and a base electrode of the PNP type transistor VT 1 and an emitting electrode of the PNP type transistor VT2 are connected with the two paths of monitor probes respectively. The buzzer driving circuit is composed of an NPN type transistor VT3 and a buzzer HA. According to the technical scheme, the circuit structure is simplified, and the requirements for high monitor sensitivity and reliable work performance are achieved. Once one certain path of monitor probe is triggered, the alarm device gives an alarm through the buzzer immediately, the bridge circuit is automatically kept locked once an alarm signal rings out, and the phenomenon of error alarming or missing alarming can be basically eradicated.

The intelligent alarm device for the computer case comprises a case body, placing openings are formed in the front side and the rear side of the outer wall of the case body, mounting plates are clamped to the placing openings, and connecting cylinders are fixedly connected to the center positions of the mounting plates; the rotating assembly comprises a rotating column, the rotating column is rotationally connected with the connecting cylinder, an annular opening is formed in the outer wall of the rotating column, the end, close to the connecting cylinder, of the annular opening is fixedly connected with an alarm device, the end, close to the interior of the case, of the rotating column is fixedly connected with a plate shaped like a Chinese character'ri ', and I-shaped rubber cylinders are arranged in the two ends of the plate shaped like the Chinese character'ri' and sleeved with pull rings. A through hole is formed in the center of the rotating column, a pull rope penetrates through the through hole, and one end of the pull rope is fixedly connected with the pull ring. The position of the temperature and humidity sensor is adjusted by adjusting the rotating column and the pull rope, so that the interior of the case is monitored and alarmed, the monitoring range of the temperature and humidity sensor is expanded, the problem that the case is damaged due to the fact that local temperature and humidity exceed the standard is solved, the service life of the case is prolonged, and the working efficiency of the case is improved.

The invention discloses a computer network safety monitoring device, which comprises a host box. A hard disk placement groove is arranged on the side of the host box, and the groove cover is rotatablyarranged on the upper end of the hard disk placement groove through a pin shaft. A fingerprint lock is arranged on the groove cover; A fingerprint collector, an A/D converter, a single chip microcomputer, an alarm device and a storage battery are arranged in the host box. And the output end of the ripple collector is electrically connected with the input end of the A/D converter. The fingerprintlock is electrically connected with the input end of the fingerprint collector. The A/D converter and the output end of the battery are electrically connected with the input end of the single-chip microcomputer respectively, and the output end of the single-chip microcomputer is electrically connected with the input end of the alarm device. The single chip microcomputer is provided with a wirelesstransmitter. The computer network safety monitoring device adopts a hard disk placing groove which is arranged on the side of a host box, and a fingerprint lock is arranged on the groove cover; Effective protection of the hard disk security, prevent loss; The utility model has strong practicability and is easy to popularize and use.

The invention discloses a cloth improved silencing full-automatic packaging machine. The cloth improved silencing full-automatic packaging machine is characterized by comprising a rack, the rack is provided with a support base, the support base is provided with a movable frame and fixing handles, movable blocks are arranged on the movable frame, and a rotation machine is arranged on one side of the rack; and the rack is provided with a thermometer, an alarm device is arranged beside the thermometer, and silencing triangular belts are arranged in the rack. The cloth improved silencing full-automatic packaging machine has the beneficial effects of being reasonable in design and simple in structure. When the cloth improved silencing full-automatic packaging machine works, the expected effectcan be achieved, most of support bases need to be arranged to meet the high-temperature-resisting requirement while the cloth improved silencing full-automatic packaging machine meets the requirementin the aspect of materials; and the support base is made of strengthened composite materials, the support base is strengthened, and usage safety is improved.

The invention relates to the technical field of calling alarm devices, in particular to a calling alarm device for a marine HMI anda system, which comprises a rectangular mounting plate, a fixed mounting sleeve column is vertically arranged on the front side of the rectangular mounting plate and close to the left side, a supporting rod is movably connected to the top of the fixed mounting sleeve column, and an adjusting rod is movably connected to the top of the supporting rod. A rectangular supporting plate is horizontally arranged at the top of the adjusting rod, a cylindrical warning device and a wireless communication antenna are arranged at the top of the rectangular supporting plate, and a wireless calling box is arranged at the position, close to the right side, of the front side of the rectangular mounting plate. According to the calling alarm device used for the marine HMI anda system, the cylindrical warning device and the wireless communication antenna are arranged at a high position through the supporting rod and the adjusting rod, wireless signals cannot be blocked by equipment, the cylindrical warning device arranged at the high position can enable workers in a relatively far position to see warning lamp signals, and the warning lamp signals are not blocked by the wireless communication antenna. Workshop workers can quickly find out the position where a production line goes wrong.

The invention discloses an artificial intelligence garbage identifying and throwing device which comprises a box body with an opening in one side, a garbage recycling door hinged to the opening of the box body, a limiting sensor arranged on a hinged shaft at the hinged position of the garbage recycling door and the box body, a garbage scanning device arranged on the garbage recycling door and a controller arranged in the box body. A first signal output port of the controller is connected with a signal input port of the limiting sensor, a signal output port of the limiting sensor is connected with a signal input port of the garbage scanning device, a voice alarm device is arranged on one side of the box body, and a signal input port of the voice alarm device is connected with a second signal output port of the controller. The limiting sensor and the garbage scanning device are arranged at the garbage throwing door of the cabinet body, garbage to be thrown can be scanned, whether the garbage meets the classification standard or not is determined, the throwing opening is not opened for garbage which does not meet the classification standard, voice prompt is conducted, and the consciousness of the public for garbage classification can be effectively improved.

The invention provides a hazardous gas leakage detection alarm device. The device comprises a transverse pipe and a vertical pipe. A bent pipe is connected between the left end of the transverse pipeand the upper end of the vertical pipe. The transverse pipe and the vertical pipe are vertically arranged. The transverse pipe is sleeved by an upper lantern ring. The vertical pipe is sleeved by a left lantern ring. The lower end of the upper lantern ring is fixedly connected with a vertical plate. The right end of the left lantern ring is connected with a transverse plate. The lower end of the vertical plate is fixedly connected with the right end of the transverse plate. Detection boxes are installed on the upper side of the transverse plate and the left side of the vertical plate. The structure is simple and clear and easy to understand. Suction fans are installed above and on the left side of the detection boxes to suck gas near the transverse pipe and the vertical pipe, so that the detection range is enlarged. A pollutant detector in each detection box sucks in surrounding gas through a gas inlet pipe. If each detector detects that hazardous gas exceeds the standard, a signal istransmitted to a controller through a sensor, and the controller controls an alarm lamp to be turned on. Leakage troubleshooting is carried out. Troubleshooting is carried out within the range of eachdetection box. The operation is easy.