93results about How to "Improve detection security" patented technology

The invention relates to a method and a device for detecting an insulator through a multi-rotor unmanned aerial vehicle. The device comprises a multi-rotor unmanned aerial vehicle, as well as an onboard control computer of a flight control system, a positioning device, an unmanned aerial vehicle steering engine controller, a height measuring device, a speed measuring device, a high-definition camera, an unmanned aerial vehicle PCM (Pulse-Code Modulation) remote control receiver, an onboard wireless communication unit and a lifting device which are arranged on the multi-rotor unmanned aerial vehicle; the lifting device drives a probing lower pole to move; the onboard wireless communication unit communicates with a ground station; the unmanned aerial vehicle steering engine controller controls a servo steering engine; the servo steering engine controls a multi-rotor module; a probing upper pole and the probing lower pole are respectively connected with respective voltage sensors; the two voltage sensors are connected with an A/D (Analogue-to-Digital) conversion unit, a DSP (Digital Signal Processor) unit and the onboard control computer of the flight control system. The method and the device provided by the invention can be used for knowing and control the operation condition of a circuit insulator in time; the risk when a detector climbs up to carry out near-distance electrified operation can be further avoided; and meanwhile, the detection efficiency can be improved.

The invention discloses a caterpillar track type road surface autonomous detection robot system which comprises a caterpillar track type robot and a remote monitoring auxiliary system. The caterpillar track type robot and the remote monitoring auxiliary system transmit information in a wireless communication manner. The caterpillar track type robot is provided with a control system, a nondestructive detection system and an operation mechanism; the operation mechanism is installed on the caterpillar track type robot; the nondestructive detection system is connected with the operation mechanism; the control system is electrically connected with the operation mechanism and the nondestructive detection system; and the nondestructive detection system comprises a resistivity meter, the operation mechanism comprises a telescopic mechanism, and the resistivity meter is connected with the telescopic mechanism. The invention further discloses a road surface detection method. By the adoption of the robot system, intelligent detection can be achieved; due to the fact that manual driving is not needed, the detection safety and the accuracy of detected data are improved; various nondestructive detection sensors are integrated, the road surface and the inner condition of the road surface can be comprehensively evaluated at a time, the detection efficiency is greatly improved, and the influences on the road passage are reduced as well.

The invention discloses a system and method for detecting effective prestressing force under anchor by adopting a method for detecting and stabilizing clamping piece displacement, the detection system and the detection method are included, and the detection system comprises a computer control center, a measurement control terminal, an oil pump, a jack, a force sensor, a displacement measurement tool, an anchor head and a steel strand; the detection method comprises the following implementation steps: S1, mounting a basic detection system; S2, detecting prepressing of the system; S3, detecting system safety parameter setting; S4, detecting system test parameter setting; S5, detecting system program control and data processing work; and S6, detecting the close of the system. The system and the method have beneficial effects of practical and convenient in use, simple operation, less detection problem, unnecessary of reading knee point, no influence on original prestressing force, high detection reliability, high detection safety and high detection precision.

The invention discloses a road damage detection robot system. The system comprises a robot body system, wherein the robot body system comprises a mobile platform system and a detection system; the detection system is mounted on the mobile platform system; the detection system comprises a knocking and scanning detector, a lifting mechanism and a detector control system; the lifting mechanism is mounted on the mobile platform system; the knocking and scanning detector is mounted on the lifting mechanism; and the detector control system is electrically connected with the knocking and scanning detector. By adopting the detection system disclosed by the invention, intelligent detection can be realized; due to no need of manual operation, the accuracy of detection security and detection data can be improved; a plurality of lossless detection sensors are integrated, so that comprehensive evaluation of pavement and internal conditions of the pavement can be realized at one time, the detection efficiency is greatly improved, and the influence on road trafficability is also reduced.

The invention discloses an explosive-proof and intrinsic safety type hazardous gas routing inspection robot. The hazardous gas routing inspection robot comprises a driving chassis used for walking driving of the robot, a front anti-collision beam and a rear anti-collision beam, wherein the front anti-collision beam and the rear anti-collision beam are installed at the front end and the rear end ofthe driving chassis respectively and used for collision protection of the robot, and a detection mechanism used for detecting hazardous gas is installed at the top end of the driving chassis. According to the explosive-proof and intrinsic safety type hazardous gas routing inspection robot, on one hand, the robot replaces man power to enter a hazardous environment to carry out detection, inconvenience and risks brought by manual operation can be avoided, and meanwhile detection stability can also be improved; and on the other hand, a laser radar and a depth camera are installed at the front end of the driving chassis, so that the environment information of the position where the robot is located can be detected in real time, the detected environment information is transmitted outside through a transmission antenna in real time, manual remote control and data analysis are facilitated, and the detection safety is improved.

The invention discloses a stepped dosing method and device for chemical oxygen demand detection in the field of water quality detection. A digestion module is arranged over an inflow and outflow main valve, the lower end of the digestion module is connected to the upper inflow and outflow port of the inflow and outflow main valve through a digestion tube inflow and outflow port, and the lower inflow and outflow port of the inflow and outflow main valve is connected to the upper inflow and outflow portion of a sample-inputting peristaltic pump through a duct; and the digestion module comprises a digestion tube, a heating wire, an optical receiver, and a light source emitter. Stepped stage-by-stage dosing reaction is adopted, a rectangular coordinate system is established with a COD (chemical oxygen demand) value detected at each stage as x and a potassium dichromate agent volume value as y to carry out dynamic curve fitting, whether agent is added or not next time and the dosage of the agent are determined according to the magnitude of dynamic curve potential, so that dosing is dynamically controlled, consequently, the objective of controlling the dosage of potassium dichromate as an oxidant is achieved, the oxidant is prevented from being excessively added to waste the agent, the usage of the agent is effectively reduced, and thereby the water quality COD detection cost is reduced.

The invention relates to a method for measuring a titanium element or titanium dioxide content in a diacetate cellulose tow. In the method, a dynamic colorimetric method is adopted, a continuous flow analyzer is used for detecting, and an external standard method is used for quantifying. The method has the advantages of being simple, fast, high in detection safety, accurate in detection result, small influence of personnel and environment, suitable for multi-batch detection demands of factories, etc.

The invention discloses a public transport body temperature detection device based on the Internet of Things. The device comprises a security check door body, a component box is installed at a top endof the security check door body, a first body temperature detector is mounted at a bottom end of the component box; a control module is mounted in the component box; and a heat dissipation mechanismis installed at a top end of the component box, second body temperature detectors are fixedly installed on two sides of an inner wall of the security check door body, an isolation mechanism is installed at a top end of the security check door body, the isolation mechanism internally comprises first rotating shafts fixedly installed on two sides of the security check door body, and other sides of the first rotating shafts are rotationally connected with supporting rods. In the present invention, the body temperature of people in the security check door body can be detected through the first body temperature detector and the second body temperature detectors; when the body temperature is abnormal, a preset instruction in the control module can control a first motor to work, and the first motor drives a shielding fence to rotate to shield an exit end of the security check door body such that the people are prevented from passing through, and the exit end is sealed to prevent the people from forcibly going away from a checkpoint.

The invention discloses a method for detecting the content of total organic matters in water in a microgravity environment. The method comprises steps as follows: (1), a to-be-detected water solution is subjected to acid treatment and then divided into a detection sample and a contrast sample; (2), the detection sample is sufficiently oxidized through an electrode oxidation reaction, and the contrast sample is not oxidized; (3), the oxidized detection sample and the unoxidized contrast sample are filtered through selective films; (4), the electric conductivity of CO2 in the oxidized detection sample and the electric conductivity of CO2 in the unoxidized contrast sample are measured, and the total carbon content and the inorganic carbon content of the to-be-detected water solution are acquired through calculation; the content of the total organic matters in the to-be-detected water solution is acquired with a minusing method. According to the method, dependence on chemicals is reduced, the safety is high, a gas-liquid separation process is not required, and the method can be effectively applied in the microgravity environment.

The embodiment of the present invention discloses a high voltage load dump test system and a test method for an electric vehicle. The high voltage load dump test system comprises a relay, a power battery charging device, a high voltage load, a switch and an oscilloscope. The relay comprises a contact and a coil, wherein the contact is connected with a power battery in series; the power battery charging device is connected with the power battery for charging the power battery; the high voltage load is connected with the power battery charging device in parallel; the switch is connected with a coil in series, wherein when the switch is in a closed state, the contact is closed to conduct a charging loop of the power battery charging device for charging the power battery; when the switch is inan off state, the contact is disconnected to disconnect the charging loop; the oscilloscope is connected with the high voltage load in parallel for detecting load dump pulse when the charging loop isdisconnected in the process of charging the power battery by the power battery charging device. The embodiment of the invention can detect high voltage load dump pulse and can improve the detection safety.

The invention relates to a retractable automatic-spin defect detecting and positioning device for storage tank walls and particularly for defect detection of small and medium sized storage tanks. The retractable automatic-spin defect detecting and positioning device is capable of determining specific location of defects in the storage tanks and providing accurate data for maintenance of the storage tanks. The technical scheme includes that the main body of the retractable automatic-spin defect detecting and positioning device comprises screws capable of being telescoped one by one, three sets of retractable connecting rods and a triangular platform; a signal analysis device is arranged on the triangular platform and a drive motor is mounted above the triangular platform; a screw reciprocating system consists of the screws and the long shaft, and key slots in the screws match with keys in a spinning box; a radial pressing system consists of a cross-spin sleeve, a radial pressing sleeve, a long shaft and a spring; a retractable connecting rod system consists of three sets of connecting rods and ultrasonic array probes are mounted at tail ends of the connecting rods; a signal analysis device comprises a signal conditioning circuit, a signal acquisition circuit, a controller, a storage unit and a display. The retractable automatic-spin defect detecting and positioning device brings convenience to detection, is easy to operate and control, improves safety in detection, reduces detection cost and improves detection precision and accuracy.

The invention relates to the technical field of tooth decay detection, and discloses a ultrasonic detector for tooth decay, which comprises a body and a detector, the body comprises a control panel, and the detector is electrically connected with the control panel; the detector comprises an ultrasonic part and a detection head, the ultrasonic part is used for detecting whether tooth decay exists or not, the detection head and the ultrasonic part are arranged correspondingly, and the detection head is used for buckling teeth. When a patient is detected, a detector is used, the ultrasonic part and the detection head are located in the oral cavity until the detection head is buckled on the teeth, ultrasonic waves are emitted to the teeth through the ultrasonic part, and whether tooth decay areas exist in the teeth or not is detected; thus, based on the detection data fed back by the ultrasonic waves, the tooth decay is detected, the detection accuracy of the tooth decay is improved, meanwhile, the damage to the patient is reduced, and the detection safety is improved.

The invention discloses a nondestructive testing system and method for a power distribution network tower base plate, clamp plate and pull plate and belongs to the field of underground metal detection. The system comprises a transmitting coil, a receiving coil, a transmitting module, a receiving module, a signal collection module and an embedded module. A pulse current source is applied to the transmitting coil and a primary space induction electromagnetic field is obtained. The receiving coil generates induced electromotive force under the effect of the primary space induction electromagneticfield. Through combination of the signal collection module and the embedded module, a waveform of the induced electromotive force is compared with feedback waveforms of standard components, and deepburying condition of the power distribution network tower base plate, clamp plate and pull plate is obtained. Compared with conventional excavation detection, the system and the method have the advantages that secondary construction is avoided in a detection process, a detection period is relatively short, detection efficiency is improved, a risk of influencing an original construction effect is avoided, detection cost is relatively low and detection safety is relatively high.

The invention discloses a vacuum tank detection anti-explosion device, and belongs to a plastic tank pressure detecting device. The vacuum tank detection anti-explosion device comprises a box frame, avacuum tank fixing device and a pneumatic pump. The vacuum tank fixing device is fixedly installed on the box frame. The pneumatic pump is arranged in an inner cavity of the box frame. During working, a vacuum tank is fixed by the vacuum tank fixing device, a joint of the pneumatic pump is connected with an air inlet hole of the vacuum tank, so that a pressure test of the vacuum tank is realizedby the pneumatic pump. According to the vacuum tank detection anti-explosion device, the technical problem that an existing safety detection and protection device is high in the cost, complex in the structure and not suitable for production needs of small and medium sized car enterprises and part manufacturers are solved. Compared with an existing air pressure anti-explosion detection device, thevacuum tank detection anti-explosion device has the characteristics of simple structure, convenient operation, high detection safety performance, high detection precision, and simultaneous detection of two kinds of testing items including positive pressure and negative pressure, and at the same time, an inspector can observe test results at a close range, and popularization and use for the small and medium sized part manufacturers are facilitated.