480results about How to "Good safety and reliability" patented technology

The invention relates to an external skeleton robot, in particular to a human-simulated external skeleton robot assisting the lower limbs. The human-simulated external skeleton robot assisting the lower limbs aims to solve the problems that an existing external skeleton robot is low in coupling degree of motion space and poor in wearing comfort, reliability and adaptation, and power needed by a motor is large. The human-simulated external skeleton robot assisting the lower limbs comprises an upper body back part, a left leg and a right leg. The left leg and the right leg respectively comprise a hip drive system, a knee drive system and a foot wearing system. A rear side connection board of the waist is in rotating connection with a load installation board. Each hip joint supporting board is provided with a first motor and a first reducer, wherein the first motor is provided with an encoder, and the output end of the first motor provided with the encoder is connected with the input end of the first reducer. Each hip joint connecting board can rotate in the vertical plane. Each thigh stretching board is in detachable connection with the corresponding hip joint connecting board. The output end of a main drive mechanism is connected with each crus connecting board. The lower surfaces of elastic boards are bonded with the upper surfaces of the rubber soles of the feet. The human-simulated external skeleton robot assisting the lower limbs can assist in walking.

The present invention provides a digital certificate control method of access control system, the control master transmits a random code to USB Key when the USB Key is connected to the interface circuit, the USB Key uses inner key encryption to generate cryptograph and transmits to the control master, the control master USB Key of the digital certificate and decoding the received cryptograph to cleartext, the control master compares the cleartext with the random code, when the comparing result is identical, the indentity of USB Key holder is determined; the control master transmits opening command to open lock mechanism after determining legal identity and access permision of the holder, when USB Key breaks the connection with the interface circuit, the control master transmits closing command, the locking mechanism is closed. The invention also provides an access control system applying the above method, including an access control system, an inner key, a digital certificate and a USB Key of digital signature and a locking mechanism. The access control method and system of the invention has convenience, high security and high credibility.

The invention discloses an intelligent road sweeper and a road pollutant identification method and a control method thereof. The road sweeper comprises a road sweeper body, a laser radar, a camera, anencoder, a dust concentration detector, an inertial sensor, a GPS system and a processing controller. A method for identify road pollutants include acquiring RGB images of clean road surface and roadfacilities to be cleaned, convert that acquired RGB images into HSV space, and obtaining a BP neural network model capable of identifying the clean road surface and road facilities; The real-time image information of the road to be cleaned is input to the BP neural network model to identify the pollutants. The method for identifying pollutants such as garbage in the present invention utilizes theHSV feature of a road image, which has a larger information amount of the gray value of the image than that of a single image, and has a better effect for identifying pollutants such as garbage.

The invention belongs to the fields of mine fire prevention and explosion prevention and fire pre-warning safety monitoring, and relates to a high-precision optical fiber composite cable intelligent monitoring platform which is the key for protecting safety operation of optical fiber composite cables. The platform comprises a distributed optical fiber temperature measuring system, a cable heating temperature control system, an optical fiber measured temperature calibration system, a local discharge online monitoring system, a data exchange system and an upper computer. The intelligent monitoring platform integrates the distributed optical fiber temperature measuring system, the cable heating temperature control system, the optical fiber measured temperature calibration system, the local discharge online monitoring system and the data exchange system, overcomes defects in the prior art, gives full play of the advantages that the safety and reliability are good, temperature measuring and positioning precision is high, the anti-electromagnetic-interference capacity is high and the operation temperature and local discharge of the optical fiber composite cables are continuously monitored in real time on a large scale, gives full play of the transmission capacity of the optical fiber composite cables, reduces the operation cost, and achieves the diversified goals of engineering security application and experiment simulation and precise prediction.

This invention solves this problem by including an optical transmitter module and optical receiver module inside the connector so as to carry out spatial optical transmitting of optical signal obtained by conversion with the optical transmitter module for optical transmitting between the optical transmitter module and the optical receiver module opposing each other across space.

The invention discloses a freeze construction method for wellbore type underground parking garage. A circular wellbore is built underground by sequentially using freeze construction, excavation construction, grouting and thaw grouting, and an elevator type and intelligent tower type stereo garage system currently applied at home and abroad is installed in the wellbore for operation. Before construction of the wellbore, an artificial freezing method is applied, water-bearing strata around the wellbore is frozen, a frozen wall having temporary load bearing and water isolating functions and meeting construction safety requirements is formed, and wellbore excavation is performed under protection of the frozen wall; the frozen wall is formed by mutual matching mutual complementing of inner ringfreezing holes and outer ring freezing holes; a cap beam is firstly constructed at the top of the wellbore; excavation construction of the outer wall of the wellbore, concrete pouring on the bottom plate of the wellbore and construction of the inner wall of the wellbore are performed in sequence; after freezing of the wellbore, lining is performed, and grouting and strata thaw are performed for grouting compensation.

The invention provides a slag-corrosion-resistant magnesite-spinel brick and a preparation method thereof and relates to a slag-corrosion-resistant magnesite-spinel brick. The slag-corrosion-resistant magnesite-spinel brick is prepared from, by mass, 61-81% of fused magnesite particles and fine powder, 0-8% of magnesium aluminate spinel particles, 3-10% of magnesium aluminate spinel fine powder, 2-8% of aluminum powder, 0.5-3% of titanium dioxide, 0.5-10% of zirconium oxide fine powder and 0.1-0.5% of yttrium oxide powder. The slag-corrosion-resistant magnesite-spinel brick is obtained through the steps of material preparation, premixing of materials, mixing of the materials and forming. Slag corrosion resistance, high-temperature oxidation resistance and compactness of the magnesite-spinel brick are improved, and accordingly the aim of prolonging the service life of the magnesite-spinel brick is achieved.

The invention is applicable to the technical field of medical instruments, and discloses a robot for implanting radioactive particles. The robot comprises an external needle puncture device, an internal needle device, a clip device and a posture control device; the external needle puncture device comprises a first supporting frame and a rotatable external needle puncture tube; the internal needledevice comprises an internal needle and an inner needle driving component, the front end of the internal needle can extend into the external needle puncture tube, and the inner needle driving component is used for driving the internal needle to slide along the external needle puncture tube; the external needle puncture device is connected to the posture control device. The robot for implanting theradioactive particles can automatically and continuously implant the radioactive particles and is high in automation degree and excellent in safety and reliability, extrusion of target tissues (target spots) by the external needle puncture tube can be effectively eliminated by rotation of the external needle puncture tube, puncture positioning precision is higher, radioactive particle implantingeffects are better, and the robot is compact in structure and excellent in application effect.

The invention discloses a novel process for coupling utilization of waste heat recovery of a riser of a coke oven and a coke dry quenching system, which comprises the steps of: combining the coke dry quenching system with a riser waste heat utilization system, using partial cooling gas (coke dry quenching recycle gas) of the coke dry quenching system to recover the heat of the riser, then sending the partial cooling gas into the middle and lower parts of a CDQ shaft to continue absorbing the heat of red coke along with other cooling gas in the CDQ shaft, and then heating a waste heat boiler to generate middle and high pressure steam further to use the steam for industries such as power generation, chemical industry, steel and the like. The process not only can recover the waste heat of raw coke oven gas in the riser, improve the grade of the energy, but also can increase the steam yield of the waste heat boiler of the coke dry quenching system. The process adopts a novel riser heat exchange device, has high heat transfer efficiency, and adopts the coke dry quenching recycle gas as medium (the coke dry quenching recycle gas is cheap and easy to obtain and cannot cause the pollution to the environment). The process has the advantages of simple system, convenient operation, and great economic benefit and environmental protection benefit.

The invention discloses an automobile dual-fuel supply system based on a single fuel rail and a single fuel injector set, which relates to automobile fuel supply systems. The system is structurally characterized in that a gasoline fuel tank, a gasoline pump, a gasoline pressure adjustor, a gasoline one-way valve, a three-way valve, a fuel rail, a fuel injector and an engine are sequentially connected to form a gasoline fuel supply unit, a methanol fuel tank, a methanol pump, a methanol pressure adjustor, a methanol one-way valve, a three-way valve, the oil rail, the fuel injector and the engine are sequentially connected to form a methanol fuel supply unit, and an electronic control unit is respectively connected with two sensors and four executive parts to realize control and switching from the gasoline fuel supply unit to the methanol fuel supply unit. By means of the automobile dual-fuel supply system, high power performance, fuel economy, environment-friendliness in discharge and safety and reliability in control can be obtained.

A battery module includes a first enclosure, a second enclosure, and a plurality of batteries having vent holes accommodated between the first and second enclosures, and has a configuration in which a first partition member for accommodating the batteries individually at a position facing the battery vent holes in at least one of the first enclosure and the second enclosure is provided.

The invention relates to a monitoring method of IGBT collector overvoltage double protection. An IGBT collector overvoltage double protection circuit, which comprises an IGBT, a microcontroller, an IGBT driving circuit, a resistor R1 and a resistor R2. An output end of the IGBT driving circuit is connected to a grid G of the IGBT. The collector C of the IGBT is connected to an input end of the microcontroller after voltage divider of the tandem voltage divider resistors R1 and R2. The output end of the microcontroller is connected to the input end of the IGBT driving circuit. The microcontroller comprises comparators CMP1 and CMP2, a first IGBT control circuit and a second IGBT control circuit, negative input ends of the comparators CMP1 and CMP2 are respectively connected with reference voltages, and output ends are respectively connected with the first IGBT control circuit and the second IGBT control circuit, wherein when the comparator CMP1 outputs a high electrical level, the microcontroller generates an interrupt handling program INT1 by the handling of the first IGBT control circuit; and when the comparator CMP2 outputs a high electrical level, the IGBT is turned off by the handling of the second IGBT control circuit, and the microcontroller generates an interrupt handling program INT2. By adopting the method, the IGBT collector voltage can be monitored in real time.

The invention provides a method for treating mephitic tail gas of a heavy waste sump tank. The invention is characterized in that: the mephitic tail gas from a sweeping device on a heavy waste sump tank pipeline is cooled by an air cooler to a range of between 96 and 100 DEG C, and sent to the heavy waste sump tank for storage; gas is extracted from the heavy waste sump tank and is sent into a condenser for cooling by controlling a temperature below 50 DEG C; the tail gas is subject to the absorbing and deodorizing treatment by an absorbent in an absorption tower, and is subject to the deodorizing treatment by the absorbent in a Venturi jet to lift power; and finally, the treated tail gas is exhausted through a blowdown pipe. The invention also discloses a corresponding treatment device. The device has the advantages of large treating capacity, good treatment effect, simple structure and reasonable process so as to achieve the emission standard for odor pollutants.

The invention relates to a falling protector self-locking reliability tester which comprises a machine frame and a guide rail assembly. The machine frame above the guide rail assembly is fixedly connected with a guidance releasing device. The guidance releasing device is fixedly connected with a connection portion. The connection portion is fixedly connected with a weight-adding device. The machine frame is movably connected with a limitation device. The machine frame is provided with a lifting device. The advantages of the falling protector self-locking reliability tester are that the lifting device drives the guidance releasing device connected with the falling protector to control the falling protector to be tested on the guide rail assembly or a rope, the limitation device guarantees the falling protector to be tested within the right movement area during testing, and the weight-adjustable weight-adding device improves test results of the falling protector under different weights effectively, thereby effectively reducing work intensity of the operating personnel during test in the past; and the tester is convenient to operate, good in safety and reliability and good in practical performance, can be suitable for falling protectors of different models and can reduce damage to the operating personnel.

The invention relates to a remote access gateway surpassing NAT based on a P2P-VPN technology. The gate is based on the internet technology, combines embedded system application, and establishes point-to-point tunnel connection with client software which works on a terminal under the assistance of a server on a public network through a virtual VPN network technology; once the connection is established, the server on the public network does not participate in the communication between the P2P-VPN gateway and the client software, and the client software and the P2P-VPN gateway are in real P2P connection, thereby realizing the surpassing of NAT in the network and providing a bridge between remote access and control for a user, so that the user realizes the remote access of information like media and data; and compared with the prior art, the gateway has the advantages of stable performance, wide scope of adaptable networks and strong NAT surpassing capability, can realize non-computer on-duty service and can construct cross-regional internal network with low cost without the address of the public network.

The invention discloses a flexible installation system for an offshore wind turbine generator set and application thereof. The flexible installation system comprises a balance device and a flexible butt joint device, wherein, the balance device is arranged at the upper part of a wind turbine body and plays a role of balancing, the balance device comprises balance beams which are symmetrically arranged on the right side and the left side, and the middle part of the balance beams is equipped with a hollow installation part corresponding to the wind turbine body; and the flexible docking device comprises an upper lifting frame and a lower frame body, wherein, the upper lifting frame is connected with the root of the wind turbine body and is equipped with a buffer gear, the lower frame body is connected with a tower tube base of an offshore base platform and is equipped with a bearing mechanism which plays a role of bearing the upper lifting frame and the wind turbine body, and the lower frame body is corresponding to the upper lifting frame. By utilizing the flexible installation system, the offshore wind turbine generator set can be safely and steadily installed.

The invention relates to an overspeed protection mechanism for an assisting ladder. The overspeed protection mechanism comprises a rack, a transmission mechanism which is driven to move along a guide rail is arranged on the rack and is a gear rack mechanism, a gear is arranged on a rotating shaft, a polygonal lug is also arranged on the rotating shaft coaxial to the gear, a semi-circular swing arm which is matched and connected with the polygonal lug is arranged on the outer circumference of the polygonal lug, one end of the swing arm is hinged on the rack by a pin shaft, a contact point is arranged on the other end of the swing arm, and a small cylinder matched with the polygonal lug is arranged at the center of the upper part of the swing arm; a guide wheel connected with the guide railis arranged at the rear part of the polygonal lug, a groove is arranged on the surface of the outer circumference of the guide wheel, a rail pressing gear block is connected in the groove in a clamping manner and connected with the guide wheel by a switch trigger rod; and the rail pressing gear block is connected with the rack by a connecting mechanism. The overspeed protection mechanism has a simple structure, is convenient to manufacture and install, good in safety and reliability and long in service life.

The invention discloses a control mechanism of a card box gate. The control mechanism is characterized by comprising an unlocking sheet (9) and a stopper block (19). The control mechanism further comprises at least one locking mechanism of a transverse locking mechanism and a rotational locking mechanism; the stopper block (19) is arranged on a movable gate (8); a first return spring (23) is arranged between the movable gate (8) and a card box inner shell stopper plate (6); a lock sheet inlet plate (10) is arranged on the card box inner shell stopper plate (6); and the unlocking sheet (9) is inserted into an inlet in the lock sheet inlet plate (10) so as to prop up the stopper block (19) and open the movable gate (8). The control mechanism of the card box gate adopts a mechanical locking mechanism with smart structure, convenience in operation and high security reliability.

The invention discloses an enclosed multi-disc wet type braking device, comprising a hydraulic control system and a brake; wherein the brake comprises a case cylinder body, a single piston and a friction plate, the single piston is arranged in the case cylinder body and one end thereof is acted on the friction plate, the other end of the single piston is opened with a spring hole used for mounting an assisted brake spring, and two hydraulic chambers are formed between the inner wall of the case cylinder body and the single piston, one is a braking hydraulic chamber, and the other one is a releasing hydraulic chamber; and the hydraulic control system comprises a hydraulic control reversing valve and a reverse braking valve, the releasing hydraulic chamber is connected with the outlet of the reverse braking valve and the pilot hole of the hydraulic control reversing valve, and the braking hydraulic chamber is communicated with one hole site of the hydraulic control reversing valve. The braking device of the invention overcomes the defects of the prior art and has the characteristics of safety, reliability, good performance, simple structure, low price, energy conservation and long service life.

An electrolyte with excellent ionic conductivity, and a lithium secondary battery utilizing the electrolyte for increased level of safety. The lithium secondary battery comprises a positive and a negative electrode that reversibly intercalate and deintercalate lithium, and an electrolyte containing a lithium ion. The electrolyte comprises: a polymer having a carbonate group represented by formula 1 below:

where R₁ is a hydrocarbon group with a carbon number of 2 to 7, and n is an integer from 10 to 10000; an electrolyte salt; and an organic solvent. The electrolyte salt is contained with a molar ratio of 0.2 or more with respect to the carbonate group, thereby providing the battery with an excellent ionic conductivity and high levels of safety.

The invention relates to the technical field of endoscope devices, and discloses a split endoscope device. The split endoscope device comprises an inserting part and an operating part. The inserting part comprises a bending unit, an inserting part mounting seat and at least one group of first power connecting units; each first power connecting unit comprises a first reverse transmission assembly,two fixed rails and two first rigid connecting bodies; and the two first rigid connecting bodies are connected through a first reverse transmission assembly. The operating part comprises a bending driving unit, an operating part mounting seat and at least one group of second power connecting units; each second power connecting unit comprises a second reverse transmission assembly, two movable rails and two second rigid connecting bodies; the two second rigid connecting bodies are connected through a second reverse transmission assembly; and the bending driving unit is in power coupling connection with the second reverse transmission assemblies. According to the split endoscope device, power loss is reduced, and the connecting mechanism is good in structural stability, the operation hand feeling is comfortable, the safety and reliability are good, and disassembling and assembling are convenient.

An automatic crank shaft grinding and cleaning machine comprises a rack, a feeding device, a workpiece transfer device, a grinding mechanism and a discharging device, wherein the feeding device, the workpiece transfer device, the grinding mechanism and the discharging device are arranged on the rack; and the workpiece transfer device is erected above the rack through a supporting upright column, and is used for conveying to-be-ground crank shafts conveyed by the feeding device into the grinding mechanism to be ground, and conveying the crank shafts to the discharging device so as to discharge the crank shafts after the crank shafts are ground. According to the automatic crank shaft grinding and cleaning machine, workpieces are fed and discharged by a robot, four crank shaft workpieces can be simultaneously machined at a time, and through a plurality of device components which are matched with one another, the crank shaft workpieces can be ground and cleaned fully automatically, production efficiency is improved, human resources are saved, and labor intensity of operators is also reduced. By the grinding mechanism, linkage of grinding wheels in the X, Y and Z directions can be realized, the crank shaft workpieces move on a main X axis along with the stroke of a sliding table, and through four-axis linkage, the workpieces with different sizes can be ground at various angles along curves of parting faces of the crank shafts.

The invention relates to a Chinese yam starch capsule shell containing ginger essential oil and a preparation method of the Chinese yam starch capsule shell. The Chinese yam starch capsule shell comprises the following ingredients in parts by weight: 20-90 parts of Chinese yam starch, 0.01-1 part of ginger essential oil, 1-30 parts of a reinforcing agent, 1-30 parts of a plasticizer, 0.1-10 parts of an opacifying agent, 0.1-10 parts of food colouring and 0.1-15 parts of a lubricant; the preparation steps comprises the followings: preparing materials; pasting to dissolve glue; performing vacuum filtration for degassing; dipping glue for forming; drying; demoulding, cutting and the like. According to the Chinese yam starch capsule shell containing the ginger essential oil, provided by the invention, the taste of the capsule shell is improved after the ginger essential oil is added, the whole capsule shell has a slight taste of the fresh gingers after all ingredients are mixed and processed, the astringent taste of the conventional capsule is improved, the capsule shell can stop vomiting and resist bacteria, the comfortable feeling of the stomach is increased, and the compliance of the capsule entering a mouth is improved.