321results about How to "Large application space" patented technology

The method includes steps: parsing object to be tested, picking up tested information from the object tested; displaying the picked test information, receiving test information input from user; generating test case based on the picked test information and the inputted test information; combining the test case and object to be tested creates testing target codes; running the testing target codes implements test for robustness of software product. The invention also related to device for testing robustness of software product. The invention can realizes automatic generation and automatic extraction for test information of tested object.

The invention relates to a remote industrial network monitoring method and system based on an S-Link and VLAN (Virtual Local Area Network) technique. An S-Link protocol and a VLAN are comprised in the method, wherein if A wants to send a plaintext to B through a double-key encrypting technique, and B has a pair of public key and private key, an encrypting and decrypting process is carried out as follows: B sends the public key to A; A uses the public key of B for encrypting information of A and then sends the encrypted information to B; B uses the private key to decrypte the information of A;conversely, if B wants to send the plaintext to A, the process is carried out as follows: A receives the plaintext of B; the private key of A is used for decryption; the public key of A is used for encryption; and B receives the plaintext of A. The system comprises a management computer, a server, a remote safety communication module, a 3G communication module, a PLC (Programmable Logic Controller) main station, a PLC auxiliary station, a camera, a frequency changer, a multifunctional panel HMI (Human Machine Interface) and an Internet.

An antibacterial anti-mildew surface decorating material contains high-molecular basic resin, antibacterial agent, antiwear filler, and assistant through proportional mixing. It is applied by coatingit on the surface of the object to be decorated and then solidifying. It can effectively suppress and kill the bacteria on the surface of the said object.

The invention provides an intelligent walking stick and an implementation method thereof. The walking stick is provided with a handle, a stick body and a base, wherein the stick body is provided with a storage battery and an alarm module; the storage battery is connected with the alarm module and used for supplying power to the alarm module; the handle is provided with an alarm button; the alarm button is connected with the alarm module, and is used for controlling the alarm module to give an alarm when pressed. Through the adoption of the scheme, the walking stick is provided with the alarm module, can give an alarm to avoid extreme accidents when a user is in danger (for example, an old person is attacked by a dog, or falls down but cannot be helped up), and can also play a warning effect when the user is threatened. Therefore, the walking stick has larger application space and high practicability.

The invention discloses a lifting and translation mechanism for an articulated thread spindle, which belongs to the technical field of mechanical design, equipment manufacture and garage. The technical proposal of the lifting and translation mechanism for the articulated thread spindle provided by the invention is the transformation between the lifting operation and the translation operation of a loaded carrying platform and the transformation from the return-stroked translation operation to falling operation by a lesser driving power and the wonderful coordination of the following parts: an articulated thread spindle assembly consisting of a fixed thread spindle, an articulated screwed sleeve, an internal spline gear, an upper thrust bearing and a lower thrust bearing, a snap ring and a magnetic elastic bolt; a moving case body consisted of a moving case body sheathed on the assembly, a power gear and a nut gear; a connected carrying platform and a control system consisted of a control lever, a control arm, a brake and a steel ball. The machine does not stop working during the transformation; the operation is stable and reliable. The technical proposal provided by the invention can be widely applied to the mechanical lifting device, manipulator, and garage construction, etc.

The invention discloses a high biomass content epoxy resin composition. The high biomass content epoxy resin composition comprises, by mass, 100 parts of epoxidized plant oil, 1 to 100 parts of unsaturated bio-based dicarboxylic acid, 1 to 10 parts of a curing accelerator 1, and 1 to 10 parts of a radical initiator; wherein the curing accelerator 1 is tetrabutylammonium bromide, triphenylphosphine, 2-methylimidazole, 2,4,6-tris(dimethylaminomethyl)phenol, or boron trifluoride, and the radical initiator is a peroxy curing agent or an azo curing agent. The invention also discloses a curing method and applications of the high biomass content epoxy resin composition. The high biomass content epoxy resin composition is capable of improving material mechanical properties greatly; the main raw materials come from biomass renewable resources, are both green and nontoxic, and possesses certain positive functions in alleviating oil crisis and reducing carbon dioxide release; damage on human body is reduced, environmental pollution is reduced, and it is beneficial for industrialized application and especially application in the field of paint.

The invention relates to a system updating and upgrading method in an enclosed environment. The method comprises the following steps that (1) a software maintenance worker encodes an upgrading file into a binary data stream through a precoding protocol algorithm, and generates a colorful two-dimension code through a colorful two-dimension code encoding tool; (2) the generated colorful two-dimension code is arranged on a carrier and displayed in front of a camera of a device to be upgraded; (3) a preset updating and upgrading service in the device to be upgraded reads the colorful two-dimension code, analyzes the colorful two-dimension code through a colorful two-dimension code decoding module and then analyzes and restores the analyzed binary data stream through the precoding protocol to obtain the original upgrading file; (4) the updating and upgrading service uses the restored upgrading file to update and upgrade an application program or a software system. According to the method, in the upgrading and updating process, colorful two-dimension code media do not need to make contact with the device to be upgraded, the upgrading process is intelligent and reliable, data encryption is supported, and updating and upgrading of the system in an enclosed environment are achieved.

The present invention discloses a biological carbon polyurethane composite material for plant cultivation. The material is prepared by mixing the following components: 30-35 parts of polyether polyol, 0.30-0.40 part of a catalyst, 0. 8-1.0 part of a foam stabilizer, 45-75 parts of a plant culture matrix material and 15-25 parts of isocyanate. The composite material provides air and nutrient needed for plant growth, has the advantages of small proportion, high toughness and good fertilizer and water conservation effect, and is applicable to plant root growth; and the biological carbon as environmental protection functions of adsorbing PM2.5 in the air and purifying haze.

The invention discloses an ultra-thin bismuth oxyhalide nanosheet as well as preparation and application thereof. The ultra-thin bismuth oxyhalide nanosheet is prepared by using bismuth nitrate pentahydrate, potassium chloride or potassium bromide as raw materials, and hydroxypropyl guar gum as a thickening agent, and adopting a hydrolysis method at low temperature. The preparation method providedby the invention has a simple process and low costs, and is green, environmentally friendly and easy to control and produce in a large scale; the guar gum is added as the thickening agent in the preparation process, various raw materials are mixed more uniformly, so that an occurrence of agglomeration of macromolecular particles in the preparation process is avoided, and preparation of a more ultra-thin bismuth oxyhalide photocatalyst with a larger specific surface area is facilitated; and the prepared ultra-thin bismuth oxyhalide nanosheet is a nano-scale layered structure, can respond in avisible light range, has stronger stability, higher catalytic efficiency, and a significant effect and huge application space in the field of photocatalytic reduction of CO2.

The invention belongs to the field of information physical systems, and particularly relates to an electric power Internet-of-Things power distribution network system based on a 5G network and an interconnection method. The method comprises the steps of firstly analyzing a power distribution network load, and establishing a power distribution network load analysis model; building a power distribution network comprehensive power flow analysis model by considering the energy router; and starting from a perception layer, a network layer, a platform layer and an application layer of power Internet-of-Things construction, integrating and applying a big data technology, and constructing a power Internet-of-Things power distribution network system. According to the power Internet-of-Things powerdistribution network system, sensing information is efficiently collected and intelligently fused through a sensing terminal, data transmission is conducted through a 5G communication network, data processing is conducted on a platform layer, and finally the data is transmitted to an application layer to be applied. The system comprises a power distribution network load analysis module, a power distribution network comprehensive power flow analysis module and an electric power Internet of Things. The energy router serves as core equipment, and has the advantages of being flexible, controllable, capable of achieving alternating-current and direct-current hybrid access and the like.

The invention provides a pressure sensor and a preparation method and use thereof. The pressure sensor comprises a dielectric layer, a first electrode layer and a second electrode layer; the first electrode layer and the second electrode layer are located at both sides of the dielectric layer respectively, and the dielectric layer comprises an ionic active material. The preparation method comprises the steps of 1) preparing the dielectric layer, wherein the dielectric layer comprises the ionic active material; 2) preparing the first electrode layer and the second electrode layer; 3) fixing thefirst electrode layer and the second electrode layer to both sides of the dielectric layer respectively to obtain the pressure sensor. The sensor has the advantages of flexibility, high transparencyand high sensitivity, and can be applied to manufacturing flexible touch sensors or human-computer interaction interfaces or the like.

The invention discloses photocuring flexible resin for 3D (three dimensional) printing and a preparation method thereof. The photocuring flexible resin for the 3D printing is characterized by being prepared from the following raw material components in parts by weight: 20 to 80 parts of a monomer raw material, 30 to 70 parts of a resin raw material, 0.3 to 3 parts of an initiator, 0.02 to 0.08 part of a defoaming agent, 0.03 to 1 part of a leveling agent and 0.05 to 5 parts of a pigment. The photocuring flexible resin is obtained by mixing of the raw material components, low-speed stirring, high-speed stirring and screening. A resin product has high elongation at break and is proper in strength and hardness; the hardness is 45 to 55 A, and the elongation at break is 100 to 160 percent; the resin product has the advantages of bending resistance, high forming rate and high precision and can meet the requirements for production and manufacturing of products such as shoe materials, seal models, spacers and gaskets; meanwhile, the preparation method has simple and efficient steps and is extremely high in promotion space and market value.

The invention relates to an under-actuated walking apparatus and a control method for the same and belongs to the technical field of semi-actuated walking. The apparatus comprises a crankshaft, a platform, a supporting block, hip parts, leg parts and a control device, wherein the crankshaft provides rotating power for the leg parts; the supporting platform can support the walking device; a left hip joint and a right joint and the control device are fixed on the platform; the hip parts are included by a left hip part and a right hip part; each hip part is connected with an internal straight leg and an external straight leg via a crankshaft rocking rod; the lower end of each straight leg is fixedly connected with a spherical foot part; the control device is formed by a data collection device, a driving device and a main control device; information acquired by the data collection device can be processed by the main control device in real time; and rotating speed of the a transmission motor can be adjusted by the driving device controlled by the control device. The under-actuated walking apparatus is simply structured with convenient use and easy manufacturing; a problem that 2D walking swinging legs have friction with the ground can be overcome; the walking apparatus can walk naturally, possesses large parameter attraction domain and low energy consumption; and the under-actuated walking apparatus possesses large application use in daily life.

The present invention relates to the field of face image recognition, computer vision and image evidence obtaining, and proposes a face image authentication method, and storage and processing equipment based on perspective distortion characteristics. The method includes: S1: identifying the key points and the contour of a human face in a 2D image; S2: acquiring the key points in a corresponding 3D model; S3: calculating the camera parameters based on the corresponding relationship between the key points in the 2D image and the key points in the 3D model; S4: based on the contour in the 2D image, optimizing the camera parameters; S5: sampling the two-dimensional key points of the human face for multiple times to obtain the intra-camera parameter estimation point clouds; and S6: calculating the inconsistency between the intra-camera parameter estimation point clouds and the camera's nominal intra-parameters and determining whether the human face image is a real one or not. The invention can effectively authenticate a 2D image and achieves high accuracy.

The invention discloses a method for reading website information through a mobile phone short message, which enables the mobile phone to receive website information abstracts through the short message and can acquire detailed website information through the wireless internet by using link contained in the short message. Refer to figure 1, namely a structural drawing of the method for reading the website information through the mobile phone short message.

The invention discloses a two-stage flash evaporation and two-stage compression heat pump device with double heat sources and an operating method. The device comprises a heat collection system, a primary flash evaporation system, a secondary flash evaporation system and a steam compression system. The method comprises the following steps: producing hot water introduced into a hot water tank according to different low-grade heat sources through three operation methods of a single heat source including solar heat, double heat sources including solar heat and waste heat and a single heat source including waste heat, and recycling low-grade heat such as solar heat and waste heat through manners of two-stage flash evaporation and two-stage compression. Compared with the organic heat pump working medium, the evaporation latent heat value of the water is high; a large amount of low-grade heat is recycled; the coefficient of performance of the heat pump device is greater than 10; the low-pressure steam is compressed for two times through a low-pressure steam compressor and a high-pressure steam compressor; the quality of the steam can be effectively improved; the temperature of the steam reaches 120 DEG C or higher; the high-temperature heating requirement can be met; the problem of haze pollution caused when the fire coal is used for heating in the northern regions of China in winter is fundamentally solved.

The invention provides a thermoelectric generator using superconducting fluid for heat transfer, and belongs to the field of development and utilization of new energy techniques. The thermoelectric generator using superconducting fluid for heat transfer is characterized in that hot fluid flow into a hot fluid inlet pipe (1), is diverted to enter branch pipes and then is diverted to enter a hot fluid heat exchanger module (5a), in the hot fluid heat exchanger module (5a), heat is transferred to the two planes of the hot heat exchanger module (5a) through the superconducting fluid, semiconductor thermoelectric generating sheets are placed in parallel or in series on the planes to form high-temperature end surfaces, the heat of the high-temperature end surfaces is transferred to low-temperature end surfaces through the thermoelectric generating sheets, and the low-temperature end surfaces are in contact with cold ends for heat dissipation; the hot fluid which flows through the hot fluid heat exchanger module (5a) flows out of a hot fluid outlet pipe (2); cold fluid flows into a cold fluid inlet pipe (3) and flows out of a cold fluid outlet pipe (4) to form the cold ends on the surfaces of a cold fluid heat exchanger module (5b); and the semiconductor thermoelectric generating sheets (9) and the cold and hot end surfaces of the heat exchanger module (5) are alternately arranged to generate temperature difference to generate power. The invention provides a method for generating power in a large scale by using steam, flue gas, industrial waste gas, terrestrial heat, solar energy and the like. The method is not only energy-saving, but also environmental-friendly.

The invention discloses a spirally bottom-expanding integrated drill bit. The drill bit comprises a drill stem, a left bottom-expanding arm and a right bottom-expanding arm, wherein the bottom of the drill stem is fixedly connected with an outer sleeve; an inner sleeve is glidingly arranged in the outer sleeve in a matching way; an arm-protecting plate is fixedly arranged outside the outer sleeve; a soil-accommodating disc is fixedly arranged at the bottom end of the inner sleeve; the upper ends of the left bottom-expanding arm and the right bottom-expanding arm are respectively hinged to the two sides of the arm-protecting plate; and the lower ends of the left bottom-expanding arm and the right bottom-expanding arm are respectively hinged to the soil-accommodating disc through connecting rods. The drill bit is simple and reliable in structure and convenient to operate. During bottom-expanding operation, soil is collected through the soil-accommodating disc, and when the drill bit is lifted out of a pile, the soil can be taken out together, so that the time and the labor are saved, and the operation efficiency of the drill bit is greatly improved. In addition, the vertical compression-resistant performance of the pile can be improved, and the drill bit has a wider popularization and application space in the field of buildings.

The invention relates to an early-warning method for stability of a retaining wall structure. The method comprises following steps: firstly, a retaining wall-rock and soil coupling system is subjected to mechanical analysis, and a simplified mechanical model of the retaining wall-rock and soil coupling system is built; a finite element model of the retaining wall-rock and soil coupling system is built on the basis of the simplified mechanical model, and a baseline finite element model of the retaining wall-rock and soil coupling system is obtained with a finite element model correcting technology; a virtual impulse response function between dynamic responses of the baseline finite element model of the retaining wall-rock and soil coupling system is calculated and is then subjected to wavelet packet frequency band energy spectrum analysis, and an early-warning index is proposed; internal relations among the early-warning index, soil pressure and a retaining wall stability coefficient are analyzed on the basis of the simplified mechanical model of the retaining wall-rock and soil coupling system, the finite element model correcting technology and the early-warning index, and the stable state of the retaining wall is determined through the early-warning index. The method is simple, convenient, quick, efficient, modern, intelligent and capable of being widely applied to early warning about stability of various rock and soil retaining structures, and has broad application prospect.

The embodiment of the invention provides an automatic noise lowering method, device and system of a projector. The method includes the steps that the real-time rotating speed data of a fan of the projector are acquired, and the real-time noise data of the fan of the projector are acquired; according to the real-time rotating speed data and the corresponding relation between preset rotating speed data and noise lowering audio, the noise lowering audio corresponding to the real-time rotating speed data is acquired; audio signals given out by a loudspeaker of the projector are adjusted according to the noise lowering audio so that the sound given out by the loudspeaker of the projector can be synchronous with the real-time noise data, opposite to the real-time noise data in phase position and same as the real-time noise data in frequency and amplitude, and therefore interference noise lowering can be formed. According to the automatic noise lowering method, device and system of the projector, a sound sensor, a fan control chip, the loudspeaker and an FPGA are combined to solve the noise problem of the system fan of the projector, and automatic monitoring and automatic regulation and control are achieved in the whole process; manual intervention is omitted, and the most ideal noise lowering effect of the system can be achieved fast.

The invention discloses a preparation method of magnetic chitosan-sodium alginate gel balls, which comprises the following steps: preparing magnetic particles I of chitosan-coated fly ash magnetic beads and magnetic particles II of chitosan-coated Fe3O4 nanoparticles; dissolving 20-30 parts by weight of the sodium alginate in 60-80 parts by weight of pure water, adding 25-30 parts by weight of a mixture of the magnetic particles I and the magnetic particles II with the mass ratio of 1: 1-3, stirring and mixing, performing ultrasonic treatment for 5-10 minutes to obtain a magnetic mixed solution; dissolving 25-35 parts by weight of CaCl2 in 60-70 parts by weight of ultrapure water, slowly and uniformly dropping the magnetic mixed solution into the CaCl2 solution into the CaCl2 solution by using a syringe needle with the specification of 1 ml; cross-linking the magnetic mixed solution in water to form composite gel balls of uniform size; after soaking for 2-4 hours in CaCl2 solution, taking the gel balls out and washing for 3 times with ultrapure water to obtain magnetic chitosan-sodium alginate gel balls; the preparation method can prepare the novel composite adsorbent with uniformparticle size distribution, good dispersibility and stability, and good effect.

The invention provides a wave spectrum and energy spectrum composite type X-ray fluorescence spectrophotometer. The wave spectrum and energy spectrum composite type X-ray fluorescence spectrophotometer comprises an X-ray source, a light filter switching mechanism, a sample moving platform, a sample cup, a diaphragm switching mechanism, a primary collimator switching mechanism, a dispersive crystalswitching mechanism, a secondary collimator switching mechanism, a gasflow type proportional counter, a scintillation counter, an SDD detector, a main control panel and a PC machine. The wave spectrum and energy spectrum composite type X-ray fluorescence spectrophotometer has the following advantages: detection or point / face scanning can be rapidly completed by using an energy spectrum function when the sample is subjected to integrated component analysis and distribution analysis, and the whole body or certain area of the sample can be subjected to element analysis and distribution analysisby a wave spectrum function, so that organic combination of the wave spectrum and energy wave spectrum functions is realized, the two functions can be applied to integrated element component analysisand distribution analysis of the sample, the characteristics of high resolution, rapidness, flexibility and combinability are achieved, the reliability of the analysis result can be improved and the detection efficiency can be improved obviously.

The invention relates to the technical field of electrons, in particular to a large-dynamic and high-precision programmable time delay device based on an FPGA (field programmable gate array). A target signal is subjected to precise time delay according to a fact that a read-write clock has a time delay function on asynchronous FIFO (first in first out) with a phase difference. The large-dynamic and high-precision programmable time delay device comprises a clock frequency and precision setting module, a delay value control module, a clock management PLL (phase locked loop), a read-write control signal module and an asynchronous FIFO module, wherein the output end of the clock frequency and precision setting module is connected with the input end of the clock management PLL; the output end of the delay value control module is connected with the input end of the delay value control module and the input end of the read-write control signal module; the output end of the read-write control signal module is connected with the input end of the asynchronous FIFO module; the output end of the clock management PLL is connected with the input end of the asynchronous FIFO module and the input end of the read-write control signal module. The invention has the beneficial effects that the large-dynamic and high-precision programmable time delay device based on the FPGA has the advantages of high integration degree and high stability; meanwhile, the technical bottleneck that the time delay range and the precision cannot be considered simultaneously at present is solved. The invention is particularly suitable for the large-dynamic and high-precision programmable time delay devices.

The invention discloses supersaturated potassium chloride cement paste for well cementation. The cement paste is prepared from the following components: high sulfate-resistant G-grade cement, a salt-bearing fluid loss reducer, a preservative, a retarder, water, potassium chloride, a reinforced anti-migration additive, an expanding agent and a weighting agent. The supersaturated potassium chloride cement paste has the effects of stabilizing a well wall and improving the well wall strength; supersaturated potassium chloride assists a cement paste to resist the influence of mirabilite, gypsum, sodium, potassium, magnesium and other halite in an evaporite bed; the technology is reliable; the field construction is simple and convenient; the well cementation effect is good; the requirements on well cementation in the evaporite bed, a high-pressure deep well evaporite bed and a super-thick evaporite bed and other complex conditions can be met; the supersaturated potassium chloride cement paste has favorable application prospect particularly for the exploration and development of a potassium bittern water well.

The invention discloses a real-time quality monitoring control system for air in a vehicle based on remote control technologies. The system comprises a hand-held remote control terminal and a motor vehicle control terminal, and the connection relation of the internal modules of the motor vehicle control terminal is as follows: the motor vehicle control terminal is respectively connected with a temperature signal collection module, a gas concentration signal collection module, a person and vehicle position judgment module, a wireless transceiver circuit, a channel selection module, a failure alarm module and a compressor driver module. The real-time quality monitoring control system for the air in the motor vehicle based on the remote control technologies changes the passive regulation mode of the conventional air purification device, realizes the real-time quality monitoring control on the air in the vehicle, can remotely control the regulation process of the system to achieve a zero-touch effect between a user and the contaminated air in the vehicle, and also can select the air inlet channel for accelerating regulation rate according to contamination level or user instructions. The failure alarm module of the system can remind the user of changing failure purification parts, and the real-time monitoring control system has wider application space on hybrid power motor vehicles and electric motor vehicles.

The invention discloses a manufacturing method for dyeing and printing a sheep wool comforter. The manufacturing method comprises the following steps: preparing blank leather before stripping (stripping, steaming, washing with water, drying, moistening, extending, toggling, placing, brushing a formic acid solution, scalding wool and cutting wool) printing, steaming, dewatering, drying, moistening, extending, toggling, placing, brushing a hand feeling solution, scalding the wool, cutting the wool, fluffing leather, removing dust, spraying resin on a leather plate, and ironing. According to the manufacturing method for dyeing and printing the sheep wool comforter, the wool tips of the comforter of the dyeing sheep cashmere-shorn leather are reduced to white or another light tone by using the stripping agent, and then, beautiful patterns which are the same as or different from a bottom color are printed on the comforter; the leather plate is further fluffed to scatter collagenous fibers, so that the leather is more soft; and the bottom of the leather plate is covered by using medium-hard resin, so that the hand feeling of the leather plate is smooth, dry and comfortable, and the wear resistance is more excellent. According to the method, new patterns and types of the leather are increased, and more colorful, novel and unique leather pattern products can be produced by dyeing, reducing and stripping as well as printing the comforter.

The invention belongs to the technical field of intelligent control, and discloses an event-driven time-varying coupled complex dynamic network synchronization method. The cooperative directed spanning tree topology gives a sufficient condition for realizing time-varying complex dynamic network index synchronization and a strict positive lower bound of event-driven interval time so as to eliminatethe Zeno behavior. The cooperative directed spanning tree topology allows that the nodes in the network are not connected any time, and only the integration of the Laplacian matrix of the network topology requires to include a directed spanning tree within a period T so that the requirement of network communication for the network topology can be reduced. A theoretical basis can be laid for application of time-varying coupled complex dynamic network synchronization and the range of application can be extended; and the communication traffic between the network nodes can be reduced, the networkbandwidth can be saved and the communication cost can be saved.

A method to enhance short message service of mobile communication includes the steps as follows: (1) adopting structured menu template for man-machine interface module of mobile terminal equipment; (2) based on program development of real-time operation system, and to provide task support for new protocol, application task to be dynamically increased in the mobile terminal equipment; (3) according to the requirement of the client, utilizing peripheral equipment interface of the existing mobile terminal equipment to provide the interactive function with network data bank of internet or data source of PC computer.

The invention discloses a pipeline instrument equipment grounding device. In the pipeline station instrument equipment grounding device, a barrier grounding ring (1) is added between an electric interface (13) and an anti-explosion barrier (2) of instrument equipment; the bottom of the barrier grounding ring (1) is connected with a line nose 1 (9) by a bolt 1(7) and a nut (8); the line nose 1(9) is connected with a grounding lead (5); the other end of the grounding lead (5) is connected with a line nose 2(10); the line nose 2(10) is connected to instrument grounding flat steel (11) by a bolt (15) and a nut; the instrument grounding flat steel (11) is connected with electric power grounding net flat steel (12); and the grounding lead (5) is fixed with an instrument protection tube (4) by acable bonding tape 1(6), a cable bonding tape 2(16) and a cable bonding tape 3(17). The pipeline station instrument equipment grounding device is safe, improves the precision and the stability of theinstrument equipment, is convenient to operate and maintain, and reduces equipment investment and construction cost.