42results about How to "Monitor quality in real time" patented technology

The invention discloses an autonomous operation intelligent road roller system comprising a road roller body, a machine control layer for controlling the motion of the road roller body, a perceive decision layer and a management planning layer; a carrier phase differential technology GNSS is adopted to realize high-precision positioning and course measurement; the vehicle body is provided with a millimeter wave radar for detecting obstacles in the periphery of the vehicle body; the vehicle body is provided with a laser radar and a camera used for high-precision map construction and side slopedetection of a rolling area, so that a management planning end can carry out rolling operation planning; an onboard compaction degree online detection technology is adopted to realize full-coverage online detection of the compaction degree, and a basis is provided for frequency modulation amplitude modulation; an expert system and a big data system are internally arranged in the management planning end, rolling planning can be autonomously performed according to the characteristics of the construction site compacted material, the parameters of the road roller, the compaction degree informationand the high-precision map, and cluster compaction data sharing and collaborative operation is realized; the vibration energy output can be adjusted in real time by the road roller according to the compaction progress, and the compaction quality and efficiency are effectively improved.

The invention discloses a fire extinguisher pressure detection method and a fire extinguisher pressure detection system based on a wireless sensing network. The detection method comprises the following steps that: 1a, a pressure meter acquires pressure data of a fire extinguisher and sends the pressure data to a route node through a short-distance wireless transmission network; 1b, the route node forwards the pressure data to a network coordinator through the short-distance wireless transmission network; 2, the network coordinator forwards the pressure data to a center management platform through a remote communication network; and 3, the center management platform receives the pressure data, performs statistic analysis, judges whether to send out alarm information according to an analysis result, if so, sends out the alarm information. The detection system adopts the detection method. By the detection method and the detection system, cost of labors and resources which are required by checking for the fire extinguisher can be reduced greatly, so a user can find abnormity of the fire extinguisher timely, and a manager or a fire supervision department can monitor a state and the quality of each fire extinguisher in real time without going out.

The invention relates to the technical field of 3D printing and provides a fiber enhanced composite material annularly coated printing nozzle. The fiber enhanced composite material annularly coated printing nozzle comprises a feeding part, an extruding mechanism, an impregnating cavity, an annularly coated nozzle and a measuring and controlling part, wherein the feeding part is primarily used forproviding a resin material quantitively at a constant speed and the lower end of the feeding part is connected to the extruding mechanism; the resin is extruded at the constant speed under the actionof a heating ring and a screw to enter the impregnating cavity; in the impregnating cavity, the resin and the fibers are mixed and are extruded and formed through the annularly coated nozzle. The bottom end of the annularly coated nozzle is of a planar structure. The formed surface can be compacted after the composite material is formed, so that the inner porosity is reduced, and the laminar bonding effect is improved. In the printing process, a plurality of temperature and pressure parameters need to be collected and controlled. The printing nozzle mixes the resin and the fibers quickly and efficiently on the one hand, and compacts and prints the resin and the fibers on the other hand, so that the mechanical property of a formed part can be improved.

The invention provides an air purifier with a compound air cleaning system. The air purifier comprises a shell, a base, an air inlet, an air outlet, a display panel, a lateral cover plate and a multi-wing centrifugal fan, wherein the shell is arranged on the base; the air outlet, the air inlet and the display panel are respectively arranged on the shell; the lateral cover plate is arranged on one side of the shell; the multi-wing centrifugal fan is arranged in the shell; the air purifier further comprises the compound air cleaning system which comprises an air filter screen, a first cathode plate, an anode screen mesh, an absorbing net, a high-efficient filter, a second cathode plate, a fixing part and a pulsed power supply. The air purifier with the compound air cleaning system has the effects of efficiently purifying a large amount of air, removing 99.9% of PM (particulate matter)2.5, quickly killing pathogenic bacteria, resolving harmful gas in air, restraining excessive ozone generated through the traditional discharge purifying technique and greatly prolonging the service life of the filter screen.

The invention discloses an industrial boiler denitration system; a denitration mechanism, a flue gas absorption pipeline, a desulphurization absorbing tower, an underground spray dedusting flue and a gas analyzer are arranged so as to remove pollutants like sulfide, nitrogen oxide and dusts from waste gas discharged by industrial boilers; the processed waste gas quality can be monitored in real time, and intelligent adjustment can be carried out according to monitoring data of the gas analyzer, thus providing best waste gas processing effect; the industrial boiler denitration system comprises the denitration mechanism, the flue gas absorption pipeline, the desulphurization absorbing tower, the underground spray dedusting flue and the gas analyzer; the denitration mechanism comprises a liquid storage tank, a water pump, a convey pipeline and a control module, wherein the liquid outlet of the convey pipeline is arranged on to-be-denitrated equipment; the liquid storage tank, the water pump, and the convey pipeline are connected in sequence; the desulphurization absorbing tower comprises a nozzle, two dispersion impellers, a convey pump and a liquid storage pool arranged in the tower from top to bottom, wherein the nozzle, the convey pump and the liquid storage pool are connected in sequence.

The invention discloses an automatic continuous sampling device which comprises a buffer container A, a buffer container B, a buffer container C, a sampling groove, a rotary platform and a CPU controller, wherein the buffer container A is communicated with the buffer container B through a liquid outlet pipe; a solenoid valve is arranged on the liquid outlet pipe; a liquid level sensor is mounted on the buffer container B; a hole is formed in the top of the sampling groove; a flow guidance hole is formed in the bottom of the sampling groove; the rotary platform is fixed in the center of bottom of the sampling groove; one side of the buffer container C is fixed on the output shaft of a stepping motor, and the other side thereof is hanged in the air; multiple sampling bottles are arranged at the bottom of the sampling groove; a magnetic sensor is arranged on the sampling groove; a magnetic element is arranged on the buffer container C; the buffer container B is communicated with the buffer container C through a pipeline; a water suction pump is arranged on the pipeline; a stepping motor controller, the magnetic sensor, the solenoid valve, the water suction pump and the liquid level sensor are electrically connected with the CPU controller. The automatic continuous sampling device is simple in structure, low in cost and high in degree of automation, can automatically and continuously take a sample during the production process and can also monitor the flow rate.

The invention discloses a laboratory environment monitoring system based on the Internet of Things. The laboratory environment monitoring system comprises a central controller, a ventilation module, awastewater treatment module, an acoustic and optical alarm module, a wastewater monitoring module, an air monitoring module and a storage module, the wastewater monitoring module and the air monitoring module are electrically connected with the input end of the central controller, and the ventilation module, the wastewater treatment module, the acoustic and optical alarm module and the storage module are electrically connected with the output end of the central controller. The wastewater monitoring module and the air monitoring module can monitor the quality of air and wastewater in a laboratory in real time, detected data are sent to the central controller, when the quality of the air and the wastewater in the laboratory cannot reach preset requirements, the central controller reminds workers in the laboratory through the acoustic and optical alarm module, the air and the wastewater are purified by starting the ventilation module and the wastewater treatment module, and intelligent and humanized monitoring of the laboratory is achieved.

The invention discloses an automatic oil lubrication device of a bearing of a wheel or a pulley. The automatic oil lubrication device comprises a lubrication system hydraulic station and an oil lubrication mechanism, wherein the lubrication system hydraulic station is internally provided with an oil tank, a motor, a valve block, an oil level and cleanliness detector, an output pipe and a recoverypipe; the oil lubrication mechanism comprises an oil inlet pipe and an oil return pipe, and the oil inlet pipe and the oil return pipe both are connected to an oil supply position of the wheel or thepulley; and the valve block of the lubrication system hydraulic station is connected to the output pipe and the recovery pipe in the oil tank and is connected to the oil inlet pipe and the oil returnpipe of the oil lubrication mechanism, hydraulic oil in the oil tank is sent to the output pipe through the motor, the output pipe is connected with the valve block, and the valve block is connected with the oil inlet pipe to convey the hydraulic oil to the oil supply position of the wheel or the pulley; the used residual oil flows back to the valve block through the oil return pipe connected withthe valve block, and then flows back to the oil tank through the recovery pipe connected with the valve block; and the oil level and cleanliness detector is arranged in the oil tank, and the detection information is transmitted to a control center through a transmission device. The automatic oil lubrication device has the advantages that automatic control is realized, and manual intervention is not needed; and real-time detection is realized, and the lubricating quality is ensured.

The invention discloses a novel haze air integrated purifying system and belongs to the technical field of haze purification. The novel haze air integrated purifying system comprises a pressurizing draught fan, a water medium purifier, an ozone purifier, a photocatalyst purifier, a circulation water recycling pipe, a multilayer filtering net filter, an accumulated dust detector and other parts. Haze air enters the water medium purifier under the effect of the pressurizing draught fan, particulate matter with small diameters are removed, then the haze air enters a sterilizing system, and bacteria, viruses and various microorganisms in the air are killed through the ozone purifier and the titanium dioxide photocatalyst purifier; and the haze air enters the multilayer filtering net filter after being sterilized, and most of particulates in the haze air are removed; and then the air passes the accumulated dust detection system, if the quality of the air reaches the standard, a main valve is opened, the air enters the next link, and if the quality of the air does not reach the standard, the air enters another pipeline through a side valve. The treated clean air is then conveyed into allrooms through a fresh air system, and the air humidity can be adjusted before the air is conveyed.

The invention discloses a real-time monitoring device for urban water environment ecology restoration. The device comprises a data transmitting mechanism, a connector, a support frame, solar panels, solar panel supports and a real-time monitoring device body; the device is characterized in that the lower end of the data transmitting mechanism is embedded in and installed on the connector and is perpendicular to the connector, the upper end of the support frame is welded to the lower end of the connector, the lower end of the support frame is welded to the upper end of the real-time monitoringdevice body and is perpendicular to the real-time monitoring device body, the three solar panel supports are welded to the periphery of the support frame separately, the backs of the three solar panels are welded to the solar panel supports, the real-time monitoring device body comprises a pumping sampling mechanism, a water quality detection mechanism, a power reserve mechanism, a sample water discharge mechanism, an anti-rollover mechanism and a monitor shell, and the pumping sampling mechanism is welded to the left end of the inner surface of the monitor shell. According to the real-time monitoring device for urban water environment ecology restoration, the water environment quality in a region can be monitored in real time, water quality data of the region is transmitted in real time,the phenomenon that due to excessive restoration, water eutrophication is caused is effectively prevented, and restoration of urban water environment ecology is effectively guaranteed.

The invention relates to an air purification device and method. The air purification device comprises an environmental sensor, a controller and a purifier, wherein the controller is electrically connected with the environmental sensor and the purifier, the controller is used for receiving environmental parameters collected by the environmental sensor and determining the first air quality level corresponding to the environmental parameters in a plurality of preset air quality levels, the air quality levels and the air speeds of the purifier are in one-to-one correspondence, and the corresponding air speed is obtained according to the first air quality level; and the controller is used for controlling the purifier to operate at the air speed. According to the air purification device and method, starting and stopping of the purifier can be automatically controlled according to the collected environmental parameters, the air speeds of the purifier are automatically adjusted, and the intelligent, environmental-friendly, convenient, fast and efficient effects are achieved.

The invention relates to an intelligent solar energy electrostatic dust collector belonging to the field of indoor environment safety, and aiming to solve the problem existing in the conventional air cleaner. The intelligent solar energy electrostatic dust collector comprises a dust detection unit, a controller, a dust collector, an accumulator cell, a keyboard and a solar energy charge-discharge control circuit, wherein an output end of the dust detection unit is connected with a dust information input end of the controller; a dust upper limit threshold set value output end of the keyboard is connected with a dust upper limit threshold set value input end of the controller; and a switch order output end of the controller is connected with an enable end of the dust collector. The accumulator cell provides a working power supply VCC2, and the solar energy charge-discharge control circuit controls charge-discharge state of the accumulator cell.

The invention discloses an orthographic-file preprocessing system for aerial photo screening, which belongs to the technical field of aerial photo screening, and comprises the following steps: readingan aerial photo folder by adopting a tool, corresponding shooting interval time for automatically picking up aerial photos to a POS (Point Of Sale) interval time table, finding out interval problem points, and carrying out targeted adjustment; reading a file path, automatically reading a single attribute file by using a tool, and picking up and processing; after the aerial photos are shot, monitoring the shot aerial photos in real time, and then evaluating the quality of the shot aerial photos according to the aerial photos, so that whether aerial photo shooting points need to be adjusted ornot is determined; the invention is scientific, reasonable and safe and convenient to use; the node can be quickly found to judge the notch position, adjustment is conducted in time, and efficient solving is achieved; a single name can be efficiently extracted by utilizing a tool under the condition that a plurality of suffixes of the same file name exist at the same time; and detection and adjustment can be carried out in real time during aerial photo shooting, so that a lot of time is saved.

The invention discloses a water injection pork detection system and a water injection pork detection method and belongs to the technical field of water injection pork detection. The system comprises a detection module and a processing module, wherein two input ends of the detection module are connected into pork to be detected; two output ends of the detection module are used for outputting voltage signals; two input ends of the processing module are respectively connected with the two output ends of the detection module; and the processing module outputs a level signal which reflects the amplitude relationship change of the voltage values between the two voltage signals according to the two voltage signals output by the detection module. The method comprises the following steps of: allowing the input end of the detection module to connect with the pork to be detected, and respectively outputting two voltage signals from the output ends; and outputting a level signal which reflects the amplitude relationship change of the two voltage signals by the processing module. The technical scheme has the beneficial effects that miniaturization and portability of the system are realized, so that a common consumer can monitor the quality of the pork in real time, and the rights and interests and body health of consumers are guaranteed.

The invention relates to a multifunctional soil disintegration experiment device. The multifunctional soil disintegration experiment device comprises components such as a sealed tank (1), a digital monitoring system, a jacking system and a sample containing system. The multifunctional soil disintegration experiment device is ingenious in structural design and convenient to assemble, regulate and use, high-emulation dynamic simulation of a soil disintegration process under single or complex conditions is achieved, and particularly, the random, simple and rapid switching of a variety of simulation factors is ingeniously achieved.

The invention relates to a rotating type flaw detection injection molding machine die. The die comprises a movable die portion, a fixed die portion, a rotating base, a supporting box body, a rack, a stepping motor, an electromagnetic flaw detection instrument, an industrial camera, a master controller and a rotating motor. A plurality of push-and-pull rods are mounted between the movable die portion and the fixed die portion, and the rotating base is mounted at the bottom of the fixed die portion; the supporting box body is mounted at the bottom of the rotating base, and a plane bearing is arranged between the supporting box body and the rotating base; the central position of the lower face of the rotating base is in shaft joint with the rotating motor; a transverse beam of the rack is fixedly arranged on the outer wall of the side face of the supporting box body, and a rack vertical beam is provided with a rotating shaft; the rotating shaft is driven by the stepping motor, and the electromagnetic flaw detection instrument and the industrial camera are mounted on a cross beam at the front end of the rotating shaft; and the electromagnetic flaw detection instrument and the industrial camera are connected with the master controller through a cable. By means of rotation of the rotating die, fluidity and dispersion of molten body materials in a cavity are increased, and the yield rate of a casting product is improved.

The invention provides an Internet of Things system for monitoring and analyzing pet health information. The system comprises a subject terminal, an object terminal, a mobile phone client, a data processor and a database server, the data processor performs data information interaction with the subject terminal, the object terminal, the mobile phone client and the database server. The main body terminal comprises a main body temperature sensor, a main body environment temperature and humidity sensor, an acceleration sensor, an intelligent sleep monitor and a sound sensor. The object terminal comprises an object environment temperature and humidity sensor, an infrared sensor, a gyroscope, a positioning instrument, a counter, a weighing device, a formaldehyde / ammonia / carbon dioxide concentration monitor, a sound box and a network camera. The database server comprises a basic information database, a subject information database, an object information database, a difference information database and a communication information database. Information interaction is performed on the subject terminal and the object terminal through the APP application, so that informatization management of an owner on a pet is realized.

The invention discloses a flow accounting system and a monitoring method of an intelligent water purifier. The flow accounting system comprises a machine body casing, a body, a concentrated water outlet and a purified water outlet, wherein the body comprises a first water purifying module, a second water purifying module, a third water purifying module, a first pressurizing module, a second pressurizing module and a flow monitoring module; the first pressurizing module is arranged between the first water purifying module and the second water purifying module, the flow monitoring module is arranged between the second water purifying module and the second pressurizing module, and the second pressurizing module is arranged between the flow monitoring module and the third water purifying module; the flow monitoring module comprises a power module, a sensor induction module, a wireless transmission module and an alarm module. The flow accounting system has the advantages that the flow accounting system can communicate with an APP (Application) of an intelligent terminal through the wireless transmission module and is more intelligent and more humanized.

The invention discloses a multifunctional LED dot matrix display screen, relates to the technical field of LED dot matrix display screens, and solves the technical problem that an LED display screen in the prior art can only present a single static picture. The multifunctional LED dot matrix display screen comprises a control plate, a mounting frame, a LED dot matrix screen and a MCU, wherein theMCU is mounted on the control plate; the control plate is fixed in the mounting frame; the LED dot matrix screen is mounted on the mounting frame through bolts; and the control plate is integrated with an audio spectrum data acquiring circuit which is connected with the MCU through an AD (analog-digital) conversion interface. According to the multifunctional LED dot matrix display screen, the LEDdot matrix screen is used as a carrier, when music is played, the audio spectrum data acquiring circuit on the control panel acquires an audio signals, the MCU performs fast Fourier transform (FFT) processing on the audio signals, calculates the spectrum of audio and sends the spectrum to the LED dot matrix screen for display, so that the picture of the spectrum jumps along with the rhythm of themusic, and a user can experience the impact caused by the music audibly and visually.

The invention discloses a patrol interaction control method, device and system for an online classroom and a medium. The method comprises the following steps: receiving a patrol operation instruction sent by a teacher terminal and sending the patrol operation instruction to a target student terminal; acquiring an operation area picture of the target student terminal in real time and encoding to generate a corresponding audio and video stream; synchronizing the audio and video streams to the teacher terminal, decoding and playing the audio and video streams, and stopping playing the audio and video streams until a patrol ending instruction is detected. According to the embodiment of the invention, the operation picture is collected in real time and synchronized to the teacher terminal after the patrol operation instruction is sent to the target student terminal, so the teacher terminal can monitor the homework completion process and quality of each student user in real time in the class work operation link of the live streaming network class, and the teaching quality and the teacher-student interactivity are effectively improved.

The invention discloses an automatic alcohol spraying device, and relates to the technical field of non-ferrous metal and alloy processing industry. The device comprises an alcohol spraying device, a wire break detection device, and a wire break audible and visual alarm; the alcohol spraying device comprises a double-row steel support and an adjustable alcohol storage tank; four electromagnetic valves are arranged on an upper cross beam of the double-row steel support; a plurality of rows of exhaust extension sockets are arranged on a lower cross beam of the double-row steel support; the exhaust extension sockets are connected with the electromagnetic valves through first air pipes, and are connected with a Y-shaped copper connecting sleeve through second air pipes; and after the wire break detection device senses wire breakage, the electromagnetic valves are opened to achieve alcohol spraying, and a wire break alarm is given out through the wire breakage audible and visual alarm. According to the automatic alcohol spraying device, by arranging the alcohol spraying device, the wire break detection device and the wire break audible and visual alarm, the alcohol spraying time can be flexibly adjusted according to the production quality requirement, particularly, alcohol can be rapidly sprayed and the wire break alarm can be rapidly given out when a wire is broken, the production efficiency is improved, and meanwhile, the utilization rate of the alcohol is also improved.

The invention discloses an infusion alarm and a control method thereof. The infusion alarm comprises a hanging ring, a hanging hook, a power source, a tension sensor, a signal conditioning circuit, a controller, a working panel and a loudspeaker and the like. A control system is mainly configured in a mode that the controller is utilized to compare signals collected by the tension sensor and conditioned by the signal conditioning circuit with a set alarming threshold value; when liquid is going to drip off, output of the tension sensor reaches the set alarming threshold value, and the controller controls the loudspeaker to give out an alarming sound to prompt nursing personnel or accompanying personnel to timely close an infusion device; when mass, of liquid, monitored by the tension sensor is not reduced within two minutes or is reduced by an amount smaller than or equal to 4g, an alarm is also given out to avoid medical accidents caused by influence on dripping or even normal treatment due to the fact that a pipeline of the infusion device is pressed or bent by a patient carelessly. The infusion alarm is low in cost, high in accuracy, small in size, convenient to use, high in reliability and convenient for large-scale application by medical institutions.

The fuel cell system includes: a reformer for converting fuel gas into hydrogen-rich reformed gas; a fuel cell stack for generating electricity by using the reformed gas; and an electrodeionization device for discharging pure water, wherein, Removal of impurity ions from the supplied water; a sensing unit for measuring the conductivity of pure water; a water supply unit for supplying pure water to the reformer and the fuel cell stack; and a control unit for The measurement signal is used to control the operation of the fuel cell stack.

The invention provides a portable intelligent household exhaust machine and belongs to the field of air purification fresh air. The portable intelligent household exhaust machine is composed of an exhaust machine tool frame assembly, an exhaust assembly and an air sensing power source switch assembly; the exhaust machine tool frame assembly is internally provided with a stretching and contracting adjustment plate, the length of the whole machine can be adjusted by the stretching and contracting adjustment plate, and the stretching and contracting adjustment plate is suitable for installing leftward-rightward-movement type windows of different sizes; the two ends of the stretching and contracting adjustment plate are provided with bayonets, and the whole machine can be clamped to rails at the upper end and the lower end of a mobile window frame through the bayonets; the air sensing power source switch assembly is composed of an air quality sensor module, a corresponding electronic control panel and power lines and controls the exhaust assembly; when the concentration of harmful gases, such as formaldehyde, carbon dioxide and carbon monoxide is excessively high or oxygen is insufficient in a room, the exhaust machine is started automatically to exhaust towards the outside; and meanwhile, indoor air flows into the room through various ways to supplement fresh air, such as oxygen so that the indoor air can be always highly-qualified and safe. The installation method of the portable intelligent household exhaust machine comprises the steps that a window is moved away, the whole machine is vertically clamped into the window frame, the window is closed, window gaps are sealed, and the portable intelligent household exhaust machine is used after a power source is plugged in.

The invention provides a high-pollution exhaust aeration heating combustion disinfection and sterilization system and method. The system comprises a polluted region negative pressure metal ventilationpipe, wherein any position of the polluted region negative pressure metal ventilation pipe is communicated with an inlet end of a high-resistance belt heat insulation layer ventilation pipeline, an outlet end of the high-resistance belt heat insulation layer ventilation pipeline is connected to an inlet end of an outdoor negative pressure metal ventilation pipe through an electric backflow prevention valve, and an outlet end of the outdoor negative pressure metal ventilation pipe is connected to an extraction opening of a high-efficiency frequency conversion fan; and multi-virus disinfectionand sterilization devices are sequentially arranged at the rear end of the high-efficiency frequency conversion fan. Air possibly containing viruses in a high-pollution building space is subjected tohigh-temperature disinfection and sterilization through an electric heating pipeline, then the air after high-temperature disinfection and sterilization is guided to the outdoor multi-virus disinfection and sterilization devices through negative pressure pipelines for diversified thorough disinfection and sterilization of the introduced air, and the viruses in the air in the high-pollution building space can be thoroughly removed.

The invention relates to a multifunctional soil disintegration experiment device. The multifunctional soil disintegration experiment device comprises components such as a sealed tank (1), a digital monitoring system, a jacking system and a sample containing system. The multifunctional soil disintegration experiment device is ingenious in structural design and convenient to assemble, regulate and use, high-emulation dynamic simulation of a soil disintegration process under single or complex conditions is achieved, and particularly, the random, simple and rapid switching of a variety of simulation factors is ingeniously achieved.

The invention discloses an intelligent homestay space managing method. The intelligent homestay space managing method comprises the following steps that an intelligent door lock is mounted, and through authentication, a door lock switch is controlled; the states of all lamps in a room are monitored in real time, and indoor lamplight is controlled remotely; indoor temperature, indoor humidity and air quality are monitored in real time; data are obtained in real time and transmitted to a background to be subjected to analysis treatment; according to an analysis treatment result, an alarm systemis started and / or a customer service system is connected; and through monitoring and managing of the check-in process of the homestay, the accommodation space environment safety and the like, the homestay safety is greatly improved, and the more in-time more excellent service can be provided for a user.

An intelligent faucet comprises a fixing part used for installation, a water outlet part, and a bending part connecting the fixing part with the water outlet part. A water quality measuring sensor anda flow sensor are arranged in the faucet. The bending part can be bent, and a waterproof touch screen is arranged on the surface of the water outlet part and comprises an on / off button, a microcontroller, a display screen, water flow increasing and reducing buttons, water temperature increasing and reducing buttons and water utilization amount limiting buttons. The microcontroller is connected with the on / off button, the water quality measuring sensor and the flow sensor, and the microcontroller is connected with a near-distance wireless transmitter. The intelligent faucet can monitor the quality of the water body in real time, the water quality situation is visually mastered, and long-distance monitoring can be conducted through other terminal devices. The structure is simple, and the space size is small. When the water quality is not good, purification treatment can be conducted, a filtering part can be replaced, and simpleness and rapidness are achieved.

The invention discloses an infusion alarm and a control method thereof. The infusion alarm comprises a hanging ring, a hanging hook, a power source, a tension sensor, a signal conditioning circuit, a controller, a working panel and a loudspeaker and the like. A control system is mainly configured in a mode that the controller is utilized to compare signals collected by the tension sensor and conditioned by the signal conditioning circuit with a set alarming threshold value; when liquid is going to drip off, output of the tension sensor reaches the set alarming threshold value, and the controller controls the loudspeaker to give out an alarming sound to prompt nursing personnel or accompanying personnel to timely close an infusion device; when mass, of liquid, monitored by the tension sensor is not reduced within two minutes or is reduced by an amount smaller than or equal to 4g, an alarm is also given out to avoid medical accidents caused by influence on dripping or even normal treatment due to the fact that a pipeline of the infusion device is pressed or bent by a patient carelessly. The infusion alarm is low in cost, high in accuracy, small in size, convenient to use, high in reliability and convenient for large-scale application by medical institutions.

The invention discloses a steel ball cold heading test device, and belongs to the field of test machines. The device includes a motor, a machine body, a V-belt pulley set, a crank slider set, a brake,a synchronous belt pulley set, a cylindrical cam set and a plane cam set. The V-belt pulley set is composed of a belt pulley, a V belt, a round head common flat key, a press plate and a screw. A crank connecting rod set is composed of a crankshaft, a slide bearing, an upper bearing bush, a connection rod, an adjusting screw rod, a flange plate, a slider body, a guide rail, a bolt and a nut. The synchronous belt pulley set is composed of a belt pulley, a synchronous belt, a nut, a press plate and a screw; the cylindrical cam set is composed of a cylindrical cam, a roller, a push rod and a deepgroove ball bearing. The power device is fixed at the rear end of the machine body and driven by a servo motor for outputting power, the speed can be adjusted, different speeds can be achieved, different impact loads are then generated, and on-line monitoring of the steel ball quality after cold heading is achieved. According to the device, the work is simple, and real-time monitoring of the steel ball production quality can be achieved.