80results about How to "Reduce long-term operating costs" patented technology

The invention discloses a coal mine ventilation optimization and air quality regulation and control method based on adaptive learning, and relates to the technical field of coal mine ventilation optimization, and the method comprises the following steps: arranging a plurality of sensors in a mine, carrying out the real-time collection and monitoring of key environment parameters, and uploading the collected data to a central control system; and comparing the collected real-time data with historical data, and dividing the collected real-time data into conventional working condition data and abnormal working condition data according to environment states. Through real-time monitoring of various sensors and a deep learning algorithm, accurate ventilation control is achieved, a problem area is rapidly positioned in an emergency, airflow is dynamically adjusted, and safety of miners is guaranteed. According to the system, an LSTM model is adopted to predict an event trend in advance, preventive regulation and control measures are taken in time, real-time adjustment is supported, and the strain capacity is improved. Through a multi-stage ventilation mode, the system optimizes energy consumption and equipment operation efficiency, reduces unnecessary energy waste and maintenance cost, and realizes balance between safety and economy.

The invention discloses an Internet of Things multi-stage communication method and system for city management, and relates to the technical field of Internet of Things communication, and the method comprises the following steps: monitoring the state of Internet of Things equipment, collecting the state data of the equipment, analyzing the historical use data of the Internet of Things equipment, and determining the data transmission demands of the Internet of Things equipment. According to the Internet of Things multi-stage communication method and system for city management, through the energy consumption and performance analysis module, the operation state and performance of the Internet of Things equipment are monitored and evaluated in real time, the energy consumption bottleneck and the performance decline sign of the equipment are identified, early warning is given out in time, and corresponding optimization measures are suggested to be taken, so that the city management efficiency is improved. The service life of the equipment is effectively prolonged, downtime and maintenance cost caused by equipment faults are reduced, meanwhile, parameter settings such as a dormancy awakening strategy are intelligently adjusted according to the actual use condition of the equipment, and the energy consumption and operation cost of the equipment are further reduced.

The invention relates to the technical field of medical instruments, and discloses an intelligent multi-mode medical oxygen flow monitoring system, device and method. The system comprises a sensor module, a coupling modeling unit, a prediction unit, a control unit and an output module. Oxygen flow, temperature, humidity and pressure data are collected in real time through the sensor module, a dynamic coupling model of a flow field, a thermal field and a pressure field is established through the coupling modeling unit, and the prediction unit dynamically predicts the oxygen flow based on a time sequence and a state space model. The control unit optimizes sensor sampling and signal processing parameters through a feedback control algorithm, and the output module displays the oxygen flow and triggers abnormal alarm. According to the invention, high-precision monitoring, dynamic prediction and optimal control of the oxygen flow are realized, the problems of low monitoring precision, weak data analysis capability and poor interactivity in the prior art are solved, and the safety, real-time performance and intelligent level of oxygen supply are remarkably improved.

The utility model relates to the field of railway traffic engineering, and discloses a contact net pillar convenient to overhaul based on a high platform, which comprises a stand column, a stand column base is arranged at the lower end of the stand column, and a cross beam is fixedly connected to the upper end of the side face of the stand column and used for installing a high-voltage wire. A protective wall is arranged on the side face of the stand column base, a handrail is fixedly connected to the upper side face of the protective wall, a riffled plate is arranged at the upper end of the inner wall of the protective wall, and the stand column protective device is arranged between the protective wall and the stand column base. The supporting column can be effectively protected from being affected by the external environment, durability is enhanced, and investment waste is reduced.

The invention relates to the technical field of green belt trimming application, in particular to an automatic highway green belt trimming device which comprises a cross beam, a limiting assembly, a trimming assembly and a smashing assembly.The automatic highway green belt trimming device is exquisite in design, compact in size and capable of working under the condition of not occupying too much space; the cross beam serves as a main structural part, the supporting legs are vertically fixed to the bottom end of the cross beam, the advancing wheels are installed at the bottom ends of the supporting legs, and through the design, the device can move front and back on an expressway without occupying too much lane space, pruning work can be completed without arranging a roadblock, integration of a hub motor enables the advancing wheels to have the self-walking function, and the practicability is high. Therefore, the trimming device can move autonomously without additional traction or pushing force, the self-walking function greatly improves the efficiency of trimming operation, reduces the labor intensity of workers, and enables the trimming operation to be more flexible and quicker.

The utility model discloses an automatic vibration feeding and conveying system for a lithium iron phosphate production line, which comprises a discharge storage device and a conveying mechanism, a flow-aiding stirring device is arranged at the top of the discharge storage device, and a flow-aiding stirring device is arranged at the bottom of the discharge storage device. A first weighing sensor used for weighing materials is arranged in the discharging storage device, and a plurality of conveying mechanisms used for conveying the materials are arranged at the top of the discharging storage device. The conveying mechanism comprises a vibrating feeder, a first switch valve, an adjusting valve, a rotary valve, a second switch valve, a powder storage device, a second weighing sensor, a first ventilation device and a stirring device, the second switch valve is arranged at the bottom of the powder storage device, and the material flow can be accurately controlled; according to the vibrating feeder, it is ensured that the materials are conveyed at the stable and uniform speed, the risks of material accumulation and blockage are reduced, and damage to the materials is small in the conveying process of the vibrating feeder.

The invention discloses a method for degrading bisphenol organic pollutants. The method comprises a preparation method of ferromanganese spinel with a rare earth doped particle structure and an application of the ferromanganese spinel and peroxymonosulfate in degrading the bisphenol organic pollutants by cooperating with a hydrodynamic cavitation technology. Mainly relates to combination of a Fenton-like oxidation technology and a hydrodynamic cavitation technology for activating peroxymonosulfate by using ferromanganese spinel with a rare earth doped particle structure. Comprising the following steps: activating persulfate through transfer electrons between surface defects and rare earth elements of prepared ferromanganese spinel with a rare earth doped particle structure under a hydrodynamic cavitation condition, so as to generate a large number of superoxide free radicals to degrade bisphenol organic pollutants. A rich gas-liquid interface provided by nano bubbles generated by hydrodynamic cavitation is combined, and the contact opportunity of active oxygen species and pollutant molecules is increased, so that the reaction rate and the degradation efficiency are improved. According to the method, efficient degradation of bisphenol organic pollutants is realized, and a green and efficient solution is provided for water treatment.

A transformer bushing system with a self-diagnosis function comprises A-phase, B-phase and C-phase capacitive bushings with the same voltage class, a secondary capacitive voltage divider and a voltage summary signal box, wherein the secondary capacitive voltage divider and the voltage summary signal box are matched with each other. The transformer bushing system is used as complete equipment in a combined manner during operation. Compared with three-phase bushings of the same voltage level, the three-phase bushings of the same voltage level are not instantaneous voltages, but are compared by firstly monitoring an effective voltage mean value of the three-phase voltages within a certain time and then comparing, and when a certain phase is obviously increased, an early warning signal is sent out. The dry-type bushing suitable for the capacitive insulation structure comprises an RIP sleeve, an RIS sleeve and the like, two measuring taps are arranged at the positions, close to the grounding position, of the bushing, the part led out from the outermost layer is always grounded during operation, the part led out from the secondary end screen is connected with a voltage acquisition input port of a capacitive voltage divider, and the risk that the end screen is out of the ground during operation of the bushing is avoided.

The utility model relates to the technical field of chain coining, in particular to a high-degree-of-freedom automatic chain coining mechanism which comprises a right dragging plate and is characterized in that a chain walking sliding way is arranged in the center of the top of the right dragging plate, a chain is arranged in the center of the chain walking sliding way, an oil cylinder acting seat is arranged in the center of the bottom of the right dragging plate, and the oil cylinder acting seat is connected with the right dragging plate. The high-degree-of-freedom automatic chain stamping mechanism comprises a chain walking sliding way, an oil cylinder base is arranged in the center of the top of the chain walking sliding way, a steel seal stamping mechanism is arranged on the top of the oil cylinder base, and a side positioning mechanism is arranged on one side of the bottom of the oil cylinder base. According to the chain marking device, marking can be rapidly and accurately conducted on a chain, the imprinting efficiency and accuracy are greatly improved, and the time needed by an operator in the positioning and imprinting process is shortened; and the upper stroke adjustable nut and the longitudinal adjusting support are arranged, so that the mechanism can meet the marking requirements of chains with different thicknesses or chains with different sizes.

The invention relates to the technical field of underwater robot formation, in particular to an underwater unmanned underwater vehicle cluster defense confrontation method, which utilizes an underwater unmanned cluster to make up the defect of insufficient functions of a single platform by means of the number advantage, and aggregates various underwater platforms with different functions to form a common body capable of completing a given task together; a traditional expensive large manned platform is replaced by a large number of small-size low-cost distributed unmanned platforms, and the distributed unmanned platform has the advantages of being high in efficiency, low in cost, reconfigurable and capable of executing multiple tasks, is used for underwater defense and resistance, and can greatly increase the underwater reconnaissance search range and improve the response speed and the confrontation effect.

The invention discloses a multichannel power supply switching electric quantity acquisition system, which belongs to the technical field of standby power supply switching and comprises a storage battery, a mains supply end, a first intelligent switcher and a second intelligent switcher. The device further comprises a solar panel, the output end of the solar panel is electrically connected with a solar controller, the solar controller is electrically connected to the first input end of the first intelligent switcher, and the output end of the first intelligent switcher is electrically connected to the storage battery. The output end of the storage battery is electrically connected to the first input end of the second intelligent switcher, and the output end of the second intelligent switcher is electrically connected to the terminal through the main control board; the first output end of the mains supply end is electrically connected to the second input end of the second intelligent switcher through an inverter. The system has the advantage of seamlessly switching the commercial power and the storage battery.

The invention discloses a transmission tower modular foundation with multi-dimensional energy dissipation function and an energy dissipation method thereof, which relates to the technical field of transmission line foundation, including: a base plate, a step module and a column; the step module includes a vibration reduction module, and the vibration reduction module includes an energy dissipation top layer, an energy dissipation middle layer and an energy dissipation lower layer; in the energy dissipation top layer, the vibration of the elastic rope is stimulated by the collision of the ball and the rotation of the turntable, and the reciprocating motion of the elastic rope is driven by the elastic rope retracting device to dissipate energy; in the energy dissipation middle layer, the vibration of the elastic rope drives the annular rack to move linearly, thereby driving the rotation of the blade through the spiral pair and cutting the viscous damping liquid to dissipate energy; in the energy dissipation lower layer, the sliding of the slider drives the movement of the mass block in the shear thickening liquid and drives the vibration of the elastic rope to dissipate energy. While ensuring that the transmission tower foundation is easy to transport and install, the earthquake resistance and wind vibration resistance of the transmission tower foundation are improved, the transmission tower line is assisted to dissipate wind vibration energy, and the damage to the transmission tower caused by vibration is reduced.

The invention discloses a copper and copper alloy strip edge watermark removing device, and relates to the technical field of copper strip production, the copper and copper alloy strip edge watermark removing device comprises a copper strip body and a fixing plate, the side, away from the copper strip body, of the fixing plate is fixedly connected with a programmable controller, and the side, away from the fixing plate, of the programmable controller is provided with an air compression device; a nozzle is fixedly connected to an opening of the air compression device and used for blowing compressed air to the edge of the copper strip body at a certain angle and speed. The device has the main advantages that through the stepping motor, the moving body, the air compression device and the nozzle, water stains on the edge of the strip can be removed through compressed air, and the compressed air can quickly blow away the water stains on the edge of the strip through high-speed airflow and certain pressure of the compressed air. Therefore, the drying time in the production process can be remarkably shortened, and the production efficiency is improved.

The invention discloses an industrial waste salt rapid decomposition treatment device and method, and relates to the technical field of industrial waste salt treatment.The industrial waste salt rapid decomposition treatment device comprises a fixing unit which comprises a fixing steel frame, a supporting frame arranged at the bottom of the fixing steel frame and a ladder arranged on the supporting frame; the reaction unit comprises a reaction assembly arranged on the fixed steel frame; the catalytic unit comprises a catalyst adding part arranged on the reaction assembly and a catalyst liquid supplementing part arranged on the catalyst adding part, and the catalyst liquid supplementing part is connected with the fixed steel frame. Through cooperation of the electric push rod and the quantitative barrel, accurate control of the adding amount of a catalyst is achieved, so that the reaction efficiency and the treatment speed are improved, automatic operation is formed through cooperation with the reaction sensor, the operation process is simplified, the operation complexity is reduced, the achievement rate of a treatment target is increased, and resource waste is reduced.

The utility model relates to the technical field of fire fighting, and discloses a tunnel fire hydrant box which comprises a fire fighting box and a box door which are matched with the shape of the side wall of a tunnel, two mounting plates are fixed at the top end of the side wall of the fire fighting box, a fixing shaft is fixed between the two mounting plates, a mounting frame is rotatably sleeved on the fixing shaft, and a fire hydrant is arranged on the mounting frame. The mounting frame is fixed to the top of the box door, electric telescopic rods are rotationally connected to the two inner sides of the fire-fighting box, the telescopic ends of the electric telescopic rods are rotationally connected with the back face of the box door, and a protection assembly is arranged between the fire-fighting box and the box door. According to the tunnel fire hydrant box, damage caused by collision between the box door and a tunnel in the opening process can be prevented, the protection assembly between the box door and the fire hydrant box absorbs impact force generated when the box door and the fire hydrant box are closed, the sealing performance of the fire hydrant box is guaranteed, internal fire fighting equipment is further protected against the influence of the external environment, and the service life of the fire hydrant box is prolonged. And the maintenance cost is reduced.

The invention provides an automatic material checking method. The automatic material checking method comprises the following steps: binding unique RFID tags on all to-be-checked materials; at least one UHF induction antenna is installed at a preset position in a warehouse or a storage area, and the antenna covers the whole storage area; creating a checking order through the management system and sending a remote checking instruction to the RFID reader-writer; after the RFID reader-writer receives a remote checking instruction, the UHF induction antenna is started to read tag data; the RFID reader-writer is used for transmitting the collected label data to the central system; the central system performs duplicate removal processing on the collected data to ensure that each material is counted only once; and according to the de-duplicated data, automatically generating a full-inventory and insufficient-inventory record, comparing the full-inventory and insufficient-inventory record with the original inventory data, and outputting a final inventory report. Through automatic induction and data collection, manual operation is reduced, the checking efficiency is improved, the labor cost is reduced, the checking time is shortened, and the working efficiency is improved.

This invention belongs to the field of photovoltaic panel cleaning technology, specifically relating to an intelligent cleaning device and method suitable for large-angle flexible photovoltaic roofs. The intelligent cleaning device for large-angle flexible photovoltaic roofs includes an anchoring and traction system and a cleaning robot body. The anchoring and traction system includes a winch assembly installed on the roof, a composite cable connected to the winch assembly, and a central control unit. The composite cable integrates a traction rope, a power supply cable, and a water supply hose. The cleaning robot body is connected to the winch assembly via the composite cable and includes a walking and adsorption mechanism, an intelligent adsorption pressure control system, and a cleaning mechanism. The walking and adsorption mechanism is a tracked vacuum suction cup composite walking mechanism. The intelligent cleaning device for large-angle flexible photovoltaic roofs of this application enables safe, stable, and efficient fully automated cleaning operations on the surface of large-angle, flexible photovoltaic panels using the cleaning robot body.

The invention discloses a ceiling type flexible water storage structure suitable for underwater, comprising: a flexible bag comprising a bag body inner membrane and a bag body outer membrane; the bandage is arranged on the outer surface of the flexible bag and used for fixing the position of the flexible bag; and the concrete ceiling corresponds to the flexible bag in position, and the flexible bag is located on the inner side of the concrete ceiling. According to the ceiling type flexible water storage structure suitable for underwater, the flexible bag is arranged in a water area close to the island reef, the flexible bag is fixed through the anchor cable and the concrete ceiling, and the flexible bag and the breakwater are combined to form necessary conditions for storing fresh water, so that the aim of offshore water storage of the island reef is achieved; the flexible bag can be flexibly adjusted according to the shape of the storage space, is suitable for irregular submarine topography, and has the advantage of good space adaptability; and compared with a rigid water storage tank, the flexible bag is easier to transport and mount, and is particularly suitable for remote or resource-limited island regions.

This utility model discloses a highway pavement defect inspection drone, belonging to the field of highway pavement inspection technology. The drone includes a drone frame, with a main control platform at each end of the frame. The main control platform is bolted to the drone frame, and obstacle avoidance radar is installed on the outer surface of the main control platform. Six sets of wing shafts are arranged around the drone frame. This invention addresses the problem that existing highways mostly rely on point monitoring and vehicle inspection. The former cannot fully cover the entire road section, while the latter requires a large investment of manpower and resources and is affected by traffic flow, making it difficult to arrive at the scene immediately. It significantly reduces the frequency of manual inspections and the investment in vehicles and equipment, lowering long-term operating costs. Simultaneously, through early defect identification and preventative maintenance, it slows down the pavement damage process, extends the road's service life, and generates significant economic and social benefits.

The utility model relates to the field of vehicle washing machines, in particular to a rail transit vehicle fusion vehicle washing machine which comprises a vehicle type recognition system, a spraying system, a vehicle body washing set and an end washing set. The vehicle type recognition system automatically recognizes the vehicle type and sends information to the control system, and the control system immediately adjusts the cleaning program. The spraying system is located on the outer side of the track and responsible for vehicle surface spraying. The vehicle body brushing set is composed of a side face brush set and a bottom skirt brush set, swing and vertical brush structures are arranged, and all-directional cleaning is achieved. The end brushing sets are located on the two sides of the rail and clean the vehicle end face through a lifting and transverse brushing structure. The car washing machine achieves automatic control through electric connection, can meet the washing requirements of different types of cars such as motor train units, passenger cars, motor concentrated cars and locomotives, remarkably improves the washing efficiency, and reduces the operation cost.

The invention relates to a sliding type temporary supporting device, and relates to the technical field of tunneling of underground engineering. Comprising two symmetrically-arranged supporting columns of a square structure, a supporting rod is jointly installed between the supporting columns, a sliding groove with the two sides communicated is formed in the upper end of the supporting rod, extending plates extend from the opposite sides of the upper ends of the two supporting columns, and the extending plates of the supporting columns are slidably arranged in the sliding groove; the supporting columns and the supporting rods are jointly provided with a supporting mechanism adapting to a roadway with the arc-shaped top. The sliding type temporary supporting device can solve the following problems existing in the process of sliding type temporary supporting devices in the prior art: firstly, the sliding type temporary supporting device can adapt to roadways with square and arc-shaped upper top surfaces, a specific supporting system does not need to be designed for each shape, the requirement for replacing the supporting system is reduced, and the long-term operation cost is reduced; and secondly, the telescopic columns are arranged to adapt to concave-convex surfaces of different sizes and shapes, it is ensured that the supporting structure is tightly attached to the surface of the roadway, and therefore the stability and effectiveness of supporting are improved.

The utility model relates to the technical field of alarm valves, in particular to a wet alarm valve for fire safety, which comprises a valve body, a drainage valve is fixedly communicated with the right side of the valve body, a water pouring pipe is fixedly communicated with the right side of the valve body and positioned on the lower side of the drainage valve, and a drainage head is arranged on one side of the water pouring pipe. And a filtering mechanism for filtering water is arranged between the water pouring pipe and the drainage head. According to the wet alarm valve for fire safety, the design of the shell assembly facilitates the disassembly of the whole filter shell, so that maintenance personnel can easily clean and inspect the filter mechanism, the design of the cleaning assembly enables the cleaning work of the filter screen to be more efficient, the maintenance time is shortened, and the maintenance efficiency is improved. Compared with the prior art that the filter screen can be cleaned only by detaching the filter shell, the design reduces the detaching steps, simplifies the cleaning process, and can prolong the service life of the filter screen and reduce the replacement frequency through rapid and effective cleaning, thereby reducing the long-term operation cost.

The present application relates to peanut seeding mechanical technology field, specifically to multi-grain pre-charging seed type peanut single-seed sowing seed metering device, including the casing, the seed plate and the arc seed protection plate, one side of the casing is provided with the seed inlet and the seed inlet, the seed inlet and the seed tube are provided below the casing, the seed plate is divided into left seed plate and right seed plate, and both can be spliced into an integral, the seed plate is spliced after the middle large diameter forms V type structure. The seed plate of V type structure design and the inclined long groove type hole make the seed plate can be filled with two or more seeds in the filling stage, improve the filling performance of the seed metering device, through the design of the inclined long groove shape structure of the staggered arrangement, ensure that the number of seeds in each type hole can be accurately controlled, realize single-seed sowing, thereby improve the seeding accuracy, and the long groove shape structure type hole can allow to increase the number of type holes under the condition of the same diameter of the seed plate, thereby improve the working speed of the seeding machine, improve work efficiency.

The invention relates to the technical field of LED lamps, in particular to an easy-to-maintain modular assembly type LED light source module which comprises a quick-release type LED light source module body installed on a cable, and the quick-release type LED light source module body comprises a fixed installation base, a heat dissipation installation base, a puncturing assembly, a clamping mechanism, a pressing lampshade and a clamping circuit board. A first wire position clamping groove matched with the outer wall of the cable is formed in the top of the fixed mounting seat; the heat dissipation mounting seat is mounted on the fixed mounting seat, a second wire position clamping groove is formed in the bottom of the heat dissipation mounting seat, and a limiting clamping ring is arranged at the top of the heat dissipation mounting seat; the number of the puncturing assemblies is two, and the puncturing assemblies are symmetrically installed on the heat dissipation installation base. The pressing lampshade is mounted at the top of the heat dissipation mounting seat; the clamping mechanism is mounted between the pressing lampshade and the heat dissipation mounting seat; the clamping circuit board is horizontally installed on the clamping mechanism, a light source is installed on the top of the clamping circuit board, the maintenance cost is effectively reduced, and meanwhile the maintenance efficiency is improved.

The invention provides a monitoring method and device for a sodium ion battery for a locomotive, and belongs to the technical field of locomotives and vehicles. The monitoring method comprises the following steps: acquiring operation parameters of the sodium ion battery pack in real time; judging the health state of the sodium ion battery pack according to the operation parameters; and sending out an early warning instruction and / or a cut-off instruction according to the health state. According to the monitoring method of the sodium ion battery for the locomotive, the overall performance and reliability of a battery system are remarkably improved. Firstly, according to the monitoring method, key operation parameters, such as voltage and temperature, of the battery are tracked in real time, so that quick response can be ensured when any abnormality occurs, and the use safety of the battery is remarkably improved; and secondly, the battery is prevented from working under extreme conditions, so that the service life of the battery is effectively prolonged, the replacement frequency is reduced, and the long-term operation cost is reduced.

The present invention provides a fully automatic storage warehouse and a control method thereof, which relate to the field of automation technology and include a hardware system and a software system. The hardware system includes an intelligent transport robot and an environmental control module, and the software system includes a central control system, a path planning module, a task scheduling module, and a visual management module. The central control system controls the intelligent transport robot to execute access instructions according to an optimal path and a collaborative control strategy, and monitors the state and position information of the intelligent transport robot in real time, and dynamically adjusts task allocation and path planning. The central control system predicts and adjusts the optimal storage environmental parameters according to historical data and current status through an environmental parameter prediction model, and sends the environmental parameter instructions to the environmental control module.

The present invention relates to the field of intelligent building technology, specifically to an intelligent data analysis method and system based on digital construction, comprising the following steps: collecting data from the design stage of a construction project, including material usage, design specifications and construction drawings, classifying them into building area, material category and use, analyzing the relationship between the data and the project budget, and obtaining initial design data. In the present invention, by identifying key cost factors, optimizing resource allocation and construction strategies, cost control is strengthened, especially in terms of material waste and labor allocation, ensuring the maximization of economic benefits in the construction stage, and by simulating different maintenance strategies, not only can cost-effectiveness be predicted, but also operation and maintenance plans can be adjusted in a targeted manner, effectively extending the service life of the building and reducing maintenance costs, significantly improving the construction efficiency and quality of the construction project, while reducing long-term operating costs and enhancing the project's ability to adapt to future changes.

The utility model discloses a wireless well lid sensor which comprises a wireless sensor body, a bottom plate fixedly connected to the bottom of the wireless sensor body, an installation shell arranged at the bottom of the bottom plate, a moving mechanism arranged in the installation shell and an installation assembly arranged on the upper surface of the installation shell. And the moving mechanism comprises a gear motor, a transmission gear, a moving gear ring, a connecting column, a limiting shaft and an annular sliding groove, the transmission gear is fixedly connected to an output shaft of the gear motor, the moving gear ring is rotationally connected to the interior of the mounting shell, and the connecting column is fixedly connected to the upper surface of the moving gear ring. Under the action of annular movement of the moving mechanism, the wireless sensor body can monitor the well lid in an all-around and dead-corner-free mode, and the monitoring precision and the coverage rate are improved. And under the fixing action of the mounting assembly, the wireless sensor main body is easy to replace and maintain, and the long-term operation cost is reduced.

The utility model discloses a vibration transmitter, belongs to the technical field of instruments and meters, and particularly relates to a two-wire system vibration transmitter based on an HART protocol, which comprises a magnetoelectric vibration sensor, a vibration signal processing module, a master control CPU, a current output module and a communication module. The magnetoelectric vibration sensor collects signals, the output end of the magnetoelectric vibration sensor is connected with the input end of the vibration signal processing module, the main control CPU is connected with the output end of the vibration signal processing module, the current output module and the communication module are connected with the main control CPU, and the current output module is connected with the communication module. According to the utility model, the field programmability of the measuring range is realized through the HART protocol, a user can freely adjust the measuring range according to actual requirements, the requirement of frequently replacing a transmitter due to mismatching of the measuring range is avoided, the long-term operation cost is reduced, the operation process of measuring range adjustment is simplified, and the working efficiency is improved.

The utility model discloses a battery cell liquid injection device which comprises a branch telescopic device, a liquid injection sleeve cup arranged at the end part of the branch telescopic device, and a fixing piece arranged between the branch telescopic device and the liquid injection sleeve cup, and the branch telescopic device is driven to be matched with the liquid injection sleeve cup to perform synchronous liquid injection operation on the at least two battery cells fixed on the fixing piece. According to the utility model, the branch telescopic device is arranged and is matched with the liquid injection sleeve cup to carry out battery cell liquid injection operation. Therefore, liquid leakage in the liquid injection process is prevented, the effect of replacing the upper guide block is achieved, the battery cell is prevented from being clamped, and the liquid injection efficiency and the qualified rate of the battery cell are improved.