61results about How to "Normal detection" patented technology

The invention relates to a wireless, portable and wearable electrocardiogram detector capable of restraining motion interference. The wireless, portable and wearable electrocardiogram detector comprises a simulation processing module, a control module and a power supply module; the power supply module supplies power to the simulation processing module and the control module; the simulation processing module comprises an electrocardiogram detection channel, a skin electrode contact impedance detection channel and a human body voltage and current driving channel, and the electrocardiogram detection channel, the skin electrode contact impedance detection channel and the human body voltage and current driving channel are used for collecting electrocardiogram signals containing the motion interference, collecting skin electrode contact impedance signals caused by motion and providing human body common-mode voltage and alternating voltage current respectively; the control module comprises an analog-digital converter, a microcontroller and a digital signal processor; the input end of the digital signal processor receives digital signals obtained from the electrocardiogram signals containing the motion interference; the reference end of the digital signal processor receives digital signals obtained from the skin electrode contact impedance signals caused by the motion; and the electrocardiogram signals without the motion interference are obtained according to the adaptive algorithm. By means of the wireless, portable and wearable electrocardiogram detector, the good and reliable electrocardiogram signals can be obtained in the motion state.

The invention discloses a fingerprint detection circuit, a detection method of the fingerprint detection circuit and a fingerprint sensor, and relates to the technical field of fingerprint identification. The main purpose of the fingerprint detection circuit is to enable the detection circuit to normally detect a fingerprint. According to the main technical scheme, the fingerprint detection circuit comprises a photosensitive unit, a voltage following transistor, a first switch transistor and a second switch transistor. The gate of the first switch transistor is connected with a first reset control terminal. The first electrode of the first switch transistor is connected with a node while the second electrode of the first switch transistor is connected with the second electrode of the voltage following transistor. The gate of the second switch transistor is connected with a scanning signal terminal. The first electrode of the second switch transistor is connected with the second electrode of the transistor while the second electrode of the second switch transistor is connected with a reference voltage terminal. The gate of the voltage following transistor is connected with the node.The first electrode of the voltage following transistor is connected with a signal output terminal and is further connected with a second reference voltage terminal through a current source. The first electrode of the photosensitive unit is connected with a third reference voltage terminal while the second electrode is connected with the node. The fingerprint detection circuit, the detection method of fingerprint detection circuit and the fingerprint sensor are mainly used for fingerprint detection.

The invention provides a detection method of an array substrate drive circuit. The method includes: in a fully conducting stage, inputting a first power supply voltage signal to a power supply end, inputting a first data voltage signal to a data input end, inputting a first sensing voltage signal to a first sensing voltage end, inputting a first grid conducting signal to a first grid end, and inputting a second grid conducting signal to a second grid end; in a data voltage change stage, changing the first data voltage signal into a second data voltage signal; in a power supply voltage change stage, changing the first power supply voltage signal into a second power supply voltage signal; in a grid signal change stage, changing the first grid conducting signal and the second grid conductingsignal into a first grid blocking signal and a second grid blocking signal; in a measuring stage, measuring the voltage of the first electrode end of a light-emitting device, and comparing the measured voltage with theoretical voltage to determine whether the array substrate drive circuit is normal or not. By the method, the array substrate drive circuit can be detected.

The invention relates to a method and device for judging failure of a frequency conversion module temperature detecting device. The method includes the following steps that 1, when a system is started, the real-time temperature Tf0 of a frequency conversion module is detected; 2, when the starting duration reaches set time b, the real-time environment temperature T0 and the real-time temperature Tf of the frequency conversion module are detected, and the temperature increment delta Tf of the frequency conversion module is calculated according to the formula delta Tf=Tf-Tf0; 3, the normal temperature variable c of the frequency conversion module is determined according to the real-time environment temperature T0; 4, the temperature increment delta Tf of the frequency conversion module is compared with the normal temperature variable c of the frequency conversion module to judge whether the frequency conversion module temperature detecting device fails or not. By means of the method, whether the frequency conversion module temperature detecting device goes wrong or not can be judged before the temperature of the frequency conversion module becomes the highest, it is avoided that an alarm cannot be given before the frequency conversion module is heated to the safety temperature because the frequency conversion module cannot be detected, and therefore damage to the frequency conversion module is avoided.

The invention discloses a high-precision automatic robot welding device for grid plate welding. The high-precision automatic robot welding device comprises a base, a mechanical arm, a wrist joint, a touch screen and a control device, wherein a laser detector and a welding gun are arranged on the wrist joint; the mechanical arm is arranged on the base; the wrist joint is arranged at the end part of the mechanical arm; the touch screen is arranged on a supporting frame of the base; the mechanical arm, the wrist joint, the touch screen and the laser detector are all connected with the control device; an electric control box is arranged in the control device; and the detection range of the laser detector is greater than or equal to the width of a welding edge required by a grid plate. According to the high-precision automatic robot welding device, the mounting base is arranged on the wrist joint; the mounting base is inversely L-shaped; a first mounting hole for mounting the laser detector and a second mounting hole for mounting the welding gun are formed in the mounting base; the first mounting hole is higher than the second mounting hole, so that damage to the laser detector during welding of the welding gun is avoided; and meanwhile, the high-precision automatic robot welding device can effectively guarantee detection of the laser detector in the whole process.

The invention discloses a network signal output circuit. The network signal output circuit comprises a time-delay circuit, an amplifying circuit, a south bridge chip and a network chip, wherein the amplifying circuit is electrically connected with the time-delay circuit. The time-delay circuit receives a first direct current voltage signal and the time-delay circuit can output the first direct current voltage signal after the first direct current voltage signal is delayed. The amplifying circuit receives the first direct current voltage signal which is output delayed. The amplifying circuit can be converted into the output first direct current voltage signal which is delayed to a second direct current voltage signal so as to output to the south bridge chip. The south bridge chip outputs a network clock signal to drive the network chip after the south bridge chip receives the second direct current voltage signal.

The invention discloses a compression resistance detection device for an automobile shell spare part and specifically relates to the field of automobile part detection equipment. The device comprisesa base, a top seat is arranged at a top of the base, a mounting plate is arranged on a surface of the top of the base, a detection plate is arranged at a top of the mounting plate, supporting plates are arranged on the two sides of the detection plate, a lifting plate is arranged above the detection plate, a mounting seat is fixedly arranged on a bottom surface of the lifting plate, and a controlswitch is arranged on an outer side surface of the top seat. According to the invention, the lifting plate, the detection plate and a striking hammer are arranged, a to-be-detected spare part is placed in the mounting groove in a surface of the detection plate, hydraulic lifting rods work to push the lifting plate to move downwards to drive the striking hammer to make contact with the to-be-detected spare part, the hydraulic lifting rods work in a reciprocating mode to beat the surface of the spare part through the striking hammer, and therefore, the compression strength of the surface of thespare part is detected.

The invention belongs to the technical field of heat treatment furnaces, and relates to a heat treatment furnace convenient for measuring temperature and reducing temperature measuring errors. The heat treatment furnace comprises a bottom plate (1) and a housing (2) fixed on the bottom plate (1); a liner (3) is fixed at the bottom of the inner wall of the housing (2); an opening (4) is formed in the same side of the housing (2) and the liner (3); a liftable door body device (5) is arranged below the opening (4); an electrothermal component (6) is connected to one side, far from the opening (4), of the inner wall of the liner (3); a thermocouple (10) capable of moving up and down is fixedly connected to the top of the liner (3); and a fixed plate (11) and a lifting device (12) for placing ametal workpiece are sequentially connected to the bottom of the liner (3). The heat treatment furnace solves the problem that in the prior art, the in-furnace temperature is simply detected, and cannot be effectively monitored according to the size and the shape of a product, avoids the condition that the detection device is placed manually, is convenient to use, and effectively avoids detectionerrors.

The invention discloses a steel belt welding and grinding integrated machine and a working method thereof, and belongs to the technical field of steel belt fastener production. The steel belt weldingand grinding integrated machine comprises a machine base, a welding machine, an end head milling mechanism and a grinding mechanism, wherein the welding machine and the grinding mechanism are arrangedon a platform at the top of the machine base side by side; the end head milling mechanism is arranged in front of the welding machine; the end head milling mechanism comprises a moving table and a milling cutter; the moving table clamps the end heads of two steel belts and is close to the milling cutter rotating at a high speed to complete the end head milling work; the lower part of a welding head of the welding machine is fixedly connected with a clamp bottom plate, and the end heads of the two steel belts are clamped on the clamp bottom plate to complete the butt welding work; and a welding area of the steel belts is fixed on a workbench of the grinding mechanism by a second clamp, and a grinding wheel of the grinding mechanism is used for grinding the welding area. According to the steel belt welding and grinding integrated machine, steel belt joints can be welded together with high quality and can be trimmed smoothly and neatly, the steel belt material changing frequency is reduced, and the production efficiency is improved.

The invention provides a friction coefficient detecting device, the friction coefficient detecting device comprises a friction testing unit which comprises a first friction test block and a second friction test block forming a friction pair; a base which is fixedly provided with the first friction test block; a loading unit which is fixedly provided with the second friction test block and comprises a load torque unit and a load ratio pressure unit respectively applying a torque and a pressure to the friction testing unit; and a support unit which is connected between the base and the load uniting and is used supporting the loading unit; at least part of the support unit is configured into an extension part to increase a distance between the loading unit and the friction testing unit or into a thermal insulation structure. The loading unit is not affected by the temperature of the friction testing unit, and a sealing ring of the loading unit can work normally. The friction coefficient detecting device can normally detect under low temperature, normal temperature and high temperature environment, so that the range of the temperature detected by the friction coefficient detecting device is large.

The invention discloses an integrated inspection well for urban drainage pipeline flow monitoring and a detection method. The integrated inspection well comprises a vertical shaft, and a buried drainage pipeline is arranged at the bottom of the vertical shaft; a telescopic rod is hinged to the top of the inner wall of the buried drainage pipeline, a flowmeter fixing base is hinged to the end of the telescopic rod, hinged shafts at the two ends of the telescopic rod are both in the horizontal direction and are both perpendicular to the axis of the buried drainage pipeline, and a flowmeter is detachably installed on the flowmeter fixing base. The detection method comprises the following steps of telescopic rod adjustment, flowmeter installation, height adjustment, installation and debugging, detection and the like. The method has the advantage that the accuracy of the flow monitoring data can be improved. Even under the condition that the well chamber of an existing drainage inspection well is complex in condition, the flowmeter can be installed at the preset position, the problems that the flowmeter of the existing drainage inspection well is difficult to install and the flowmeter cannot be installed at the preset position in a traditional supporting rod installation mode are solved, the flow measurement precision is improved, and the measurement result is more accurate.

The invention discloses a sampling device of a filter stick forming machine. The sampling device comprises a mouth piece which rotates around a fixed axis and a fixed tube sheet, wherein the mouth piece is provided with a conveying passage, a first rigid surface and a second rigid surface; the fixed tube sheet is provided with a receiving groove which can be connected with an external environment; the conveying passage is connected with the first rigid surface; an elastic strip is embedded on the fixed tube sheet; and the second rigid surface seals the cavity of the receiving groove by extruding the elastic strip. Due to the arrangement of the elastic strip, a gap between the second rigid surface and the fixed tube sheet can meet technical requirements, namely the gap cannot be over large or cannot be completely closed; and even if the movable mouth piece is adjusted, and the actual distance between the second rigid surface and the fixed tube sheet changes, the receiving groove can still be sealed through the elastic strip. Through the device, the stability of a filter stick in the sampling process is improved, so the filter stick can be normally transmitted for detection in the production process.

The invention discloses a building environment monitoring device based on the Internet of Things, and relates to the technical field of Internet of Things environment monitoring, the building environment monitoring device comprises a fixing mechanism and a detection equipment body, the upper end of the fixing mechanism is provided with the detection equipment body, the top end of the fixing mechanism is provided with a monitor, the monitor is arranged above the detection equipment body, the monitor comprises a dust cleaning brush, and the dust cleaning brush is arranged on the outer surface of the monitor. According to the device, dust attached to the surface of the display screen can be cleaned through the arrangement of a dust cleaning rod and a dust cleaning brush, when fixed particles appear on the surface of the display screen, the attached solid particles are removed through the arrangement of a rubber scraping strip, so that the surface of the display screen is kept clean, therefore, the monitor can normally detect the environment of the construction site, and the problem that the environment of the construction site cannot be detected due to the fact that dust and solid particles fall on the surface of the monitor after the monitor is used for a period of time is avoided.

The invention relates to the technical field of rail transit, and discloses an urban subway platform door closing force detection device. The lower end of a base is fixedly connected with an anti-skid pad, the upper end of the base is fixedly connected with a supporting rod, a sliding rod is arranged in the supporting rod, the upper end of the sliding rod is fixedly connected with a detection box, and the interior of the detection box is of a hollow structure; a sealing cover is arranged at the upper end of the detection box, a display screen is arranged on the front side of the detection box, a closing force detection device is arranged on the detection box, a telescopic mechanism is arranged in the supporting rod, and a fixing rod is fixedly connected to the lower end of the sealing cover. According to the urban subway platform door closing force detection device, when the closing force of the platform door needs to be detected, an operator does not need to hold a detector by hand to detect the closing force of the platform door, so that the accuracy of detection data is ensured, meanwhile, potential safety hazards existing in manual handheld detection are avoided, and the personal safety of the operator is improved.

The invention discloses a portable composite insulator hydrophobicity test device, belongs to the technical field of detection equipment, and solves the defects of low test efficiency and inaccurate discrimination existed in the traditional composite insulator hydrophobicity detection in the prior art. The main structure of the device comprises a casing, wherein the casing is internally provided with a waterproof plate, a composite insulator, a transparent glass plate, an image collector and a water pump, wherein a motor is arranged above the casing, the waterproof plate and the transparent glass plate divide the casing in three parts, the water pump is mounted on a fixed plate that is mounted on the waterproof plate by bolts, both ends of the water pump are respectively connected with a water pipe A and a water pipe B, the water pipe B is provided with several nozzles; the upper end of the composite insulator is connected to a rotating shaft, and the rotating shaft is in transmittingconnection to the motor through a bevel gear. The device is primarily used to test the hydrophobicity of portable composite insulators.

The invention discloses an inflation folding type pile foundation static load detection ballasting water tank mainly used for pile foundation static load detection in the field of constructional engineering. The water tank is mainly composed of a water tank wall (1), vertical rods (2), lantern rings (3), a water tank bottom plate (4), reinforcing hoops (5), a drainage pipe (6), a drainage valve (7), cable ropes (9) and a support (17). An installation method of the water tank comprises the steps that 1, the support (17) is assembled at first, the folded water tank wall (1) and the folded water tank bottom plate (4) are unfolded and laid on the support (17), a cavity (8) of the inflation water tank wall (1) is filled with compressed air to enable the inflation water tank wall (1) to be automatically erected, then the vertical rods (2) are inserted into the lantern rings (3) on the water tank wall (1), the outer sides of the multiple vertical rods (2) are sleeved with the reinforcing hoops (5) to form a water tank cylinder, finally, the cable ropes (9) are fixed to the upper ends of the two symmetrical vertical rods (2) in a linear arrangement mode, and the two ends of the cable ropes (9) are fixed to the ground.

The invention discloses a gas leakage detection device for natural gas pipeline transportation. The gas leakage detection device comprises a transportation and detection trolley movably arranged on a natural gas pipeline, a working box body is arranged on the operation inspection trolley, a walking balance mechanism is arranged on the working box body, and walking rails are arranged at the joints of the two natural gas pipelines; the working box body is internally provided with a natural gas tank, the working box body is also internally provided with a gas leakage detection mechanism, the gas leakage detection mechanism is connected with the natural gas tank, and the natural gas pipeline transportation gas leakage detection device is different from the prior art, so that the walking balance mechanism is connected with the transportation and detection trolley; the operation and detection trolley is arranged on the natural gas pipeline, stable operation of the operation and detection trolley can be guaranteed, the situation that the operation and detection trolley deviates leftwards and rightwards is avoided, and when the operation and detection trolley operates on the natural gas pipeline, the gas leakage detection mechanism can conduct gas leakage detection work on the natural gas pipeline and conduct self-detection work on the gas leakage detection mechanism under timing exhaust of the natural gas tank.

A detection system of peripheral device is prepared for arranging M numbers of the second lead wires on connection port as each second lead wire being separately corresponded to one of the first lead wires of cable, forming M numbers of the second load wires by grounded second detection load wires, generating voltage signal by responding the first detection lead wire with the second one, using delay circuit to receive voltage signal and outputting delayed voltage signal to electronic unit being used to start up detection on peripheral device.

The invention relates to the technical field of detection devices, and discloses a vibration detector capable of adjusting the length of a detection head. The vibration detector comprises a first supporting rod, a second supporting rod and a vibration detector body, wherein the upper end of the first supporting rod is provided with a clamping hole; the second supporting rod is arranged inside theclamping hole; the first supporting rod is provided with a vibration detector length adjusting device; the upper end of the second supporting rod is fixedly connected with a rubber pad; the upper endof the rubber pad is provided with a circular groove; the inner bottom surface of the circular groove is fixedly connected with a first spring; and the upper end of the first spring is fixedly connected with a connecting rope. The vibration detector capable of adjusting the length of the detection head has the advantages that the adjusting steps are simple and easy to operate, thereby reducing thetime waste caused by the length adjustment of the operator; and the length deviation caused by the vibration of the object after the length adjustment is avoided, thereby avoiding the deviation of the detection effect, and ensuring that the vibration detector can perform normal detection.

The invention discloses a three-color polyester color uniformity detection device, and relates to the field of computer color photometers. The three-color polyester color uniformity detection device comprises a tester main body, the back surface of the tester main body is fixedly connected with a fixed seat, the upper surface of the tester main body is provided with an imported white board, and an extruder is arranged right above the imported white board. According to the color uniformity detection device for the three-color polyester, when the pressure borne by the surface of the three-color polyester needs to be changed for multiple groups of experimental tests, the pressure between the squeezer and the imported white board is changed through the pressure adjusting assembly, so that different detection and debugging effects are achieved, the detection result is more accurate, and the detection efficiency is improved. When the number of folded layers or the thickness of the sample is changed, the distance between the squeezer and the imported white board is adjusted through the rotating assembly, so that normal detection can be carried out.