523results about How to "Reasonable arrangement" patented technology

The invention provides a production scheduling calculation method of a production plan scheduling platform. The method comprises the steps of data collection, demand prediction intelligent analysis, productivity planning and bottleneck analysis, production scheduling plan making, real-time monitoring and dynamic adjustment, plan execution and feedback analysis and report generation and decision support. Through distributed scheduling and real-time dynamic adjustment, the production plan can respond to emergencies such as equipment failure and order change in production in time, the continuity and stability of the production process can be ensured, production stagnation or delay caused by the emergencies is avoided, meanwhile, the production scheduling plan can be rapidly adjusted through real-time data feedback, and the production efficiency is improved. Resource utilization is optimized, waste is reduced, production efficiency is improved, intelligent productivity analysis and bottleneck identification are utilized, an enterprise can comprehensively know the use condition of each production resource, and possible bottleneck problems are found and solved in advance.

The invention relates to the technical field of ecological environment protection, in particular to an ecological environment damage intelligent identification management method based on multi-source data fusion, which comprises the steps of data acquisition and preprocessing, data fusion and feature extraction, ecological environment damage evaluation model construction, damage dynamic analysis and trend prediction, restoration suggestion generation and visual display. The method comprises the following steps: collecting water quality, atmosphere, biological and social economic data in real time through a sensor network deployed in an ecological sensitive area, preprocessing the data, extracting key features by adopting a multi-modal data fusion technology and a deep learning model, and constructing an ecological damage assessment model; the change rule of ecological damage and the potential high-risk area are predicted based on a time sequence analysis method, and an optimal ecological restoration scheme is generated in combination with a particle swarm optimization algorithm. According to the method, the evaluation result and the restoration suggestion are displayed through the visual interface, a scientific basis is provided for decision makers, and the efficiency and the effect of ecological environment restoration work can be improved.

The invention relates to the field of parking lot management, in particular to a parking management method and system based on data analysis. The method comprises the following steps: acquiring real-time state information of a parking lot and a historical parking monitoring log of the parking lot; analyzing the dynamic characteristics of the vehicle in the fixed parking space according to the real-time state information of the parking lot, and predicting the available time so as to generate the predicted available time of the fixed parking space; acquiring traffic flow data of a target parking lot area; performing multi-section traffic flow analysis on the traffic flow data of the target parking lot area, and performing traffic flow time sequence trend evolution to generate real-time road state characteristics of the target area; and performing time sequence parking demand analysis on the historical parking monitoring log of the parking lot, and performing dynamic parking demand prediction of the target parking lot according to the real-time road state characteristics of the target area so as to generate a dynamic parking demand prediction value. According to the invention, parking lot management with high efficiency and high utilization rate is realized.

The invention discloses a pallet protection corner automatic putting machine. The pallet protection corner automatic putting machine comprises a top protection corner putting combination machine and aside face protection corner putting combination machine; the top protection corner putting combination machine comprises a bottom circulation base and a pair of top protection corner single machines,the side face protection corner putting combination machine comprises a bottom fixed base and four side face protection corner single machines, the top face protection corner single machines are provided with electrical control parts, top protection corner containing grooves, limiting mechanisms, and top protection corner mounting claws, the top protection corner mounting claws grab protection corners in the top protection corner containing grooves, and put the protection corners on four edges of the top of a packaging box, each side face protection corner single machine comprises a second electrical control part, a side protection corner containing groove, and a side protection corner mounting claw, and the side protection corner mounting claws grab the protection corners in the side protection corner mounting grooves and put the protection corners on the four sides of the side face of the packaging box. The pallet protection corner automatic putting machine is reasonable in layout,smooth in operation, high in adaptation, automatic in full process, free of artificial duty and capable of greatly improving protection corner putting and threading packaging capacity.

The invention discloses a method and a system for accurately positioning an article by using an RFID (Radio Frequency Identification Device) technology, and relates to the technical field of article positioning, an antenna array starts to receive an RFID signal sent by a product label, the relative position of a product is generated after the time difference of the RFID signal reaching each antenna is obtained, and the relative position is corrected by a reflection path identification algorithm, so that the product positioning accuracy is improved. And estimating an incident angle of the signal according to the phase difference received by each antenna, generating a relative azimuth angle of the product, calculating an actual position coordinate of the product by combining the relative position and the relative azimuth angle of the product by utilizing a fusion algorithm, and performing real-time positioning when the product is in a moving state. The positioning system performs position coordinate calculation on a product through a fusion algorithm, effectively reduces positioning errors of a single algorithm, improves positioning precision, dynamically adapts to warehouse structure and environment characteristics, and enhances space adaptability of the positioning system.

The invention discloses an industrial marketing management method, system and equipment based on digital twinning and a medium, belongs to the technical field of big data processing and analysis, and aims to solve the technical problem of how to collect and process various data in a cigarette marketing management process in real time, find market changes in time, improve marketing efficiency and flexibility and improve marketing efficiency and flexibility. According to the technical scheme, the method comprises the following steps: data acquisition and data cleaning: collecting full-life-cycle data of an industrial product; wherein the full life cycle data of the industrial product comprises information of each stage of design, production, test and sales; performing data modeling: performing accurate three-dimensional modeling on the industrial product by utilizing three-dimensional modeling software, constructing a virtual model of the product based on a physical law and engineering knowledge, and simulating the running state and performance of the product under various working conditions through a simulation technology; virtualizing a production scene; building a virtual product model; and simulating a virtual marketing scene.

The invention discloses a city information model management system based on a CIM basic platform and an analysis and display method, provides an innovative city information management and display solution, takes the CIM basic platform as a core, and aims to construct a high-precision and dynamically-updated city three-dimensional information model management system through an integrated information technical means. The urban space structure, the function layout and the infrastructure state can be visually and interactively explored, so that construction and development of a smart city are promoted, and the intelligent level and the comprehensive efficiency of urban management are improved.

The invention relates to the technical field of energy management and control, in particular to a wind-light-electricity energy storage flexible coordination optimization method and system, and the method comprises the steps: predicting the operation state of wind-light power generation equipment, and improving the stability of energy supply; by analyzing the charging and discharging requirements of the energy storage equipment and formulating an energy storage charging and discharging strategy, the utilization rate of the energy storage equipment is improved, and power grid supply and demand can be effectively balanced; the charging and discharging process of the energy storage equipment is finely controlled, the energy storage charging and discharging strategy is dynamically adjusted, the charging and discharging power of the energy storage equipment is optimized, and the energy consumption cost is reduced; by evaluating the performance of the energy storage equipment and creating a fault judgment mechanism, potential faults are found in time, fault expansion is avoided, an accurate maintenance strategy can be formulated according to the fault level and type, and the maintenance efficiency is improved. The method is used for solving the technical problem of insufficient energy management and control and scheduling optimization of intelligent power grid management in the existing scheme.

The invention relates to the technical field of state identification of high-end equipment, and discloses a health state prediction method for high-end equipment, which comprises the following steps: S1, collecting operation parameters and state parameters of a wind driven generator; s2, preprocessing operation parameters and state parameters of the wind driven generator; s3, constructing a reference sample set for the wind driven generator based on the preprocessed state information; s4, judging the state grade of the wind driven generator based on the reference sample set and the state parameters; and S5, providing a maintenance suggestion for the wind driven generator according to the state grade. According to the method, the accuracy and efficiency of state recognition and prediction of the wind driven generator are remarkably improved, and powerful technical support is provided for safe and stable operation of the wind driven generator.

The invention provides a big dipper navigation-based large sprinkling machine walking path positioning and planning system, which comprises a map construction module, a path planning module, a real-time adjustment module and a monitoring management module, and is characterized in that the map construction module is used for importing basic geographic information data of a sprinkling irrigation area; the path planning module is used for selecting a proper path planning algorithm and setting related parameters; the real-time adjustment module is used for determining the environment information according to which adjustment is carried out and an adjustment rule; the monitoring management module is used for setting communication parameters with a remote monitoring center. According to the big dipper navigation-based large-scale sprinkling machine walking path positioning and planning system provided by the invention, the irrigation precision is improved, the position and environment information of the sprinkling machine can be obtained in real time by utilizing a big dipper navigation system and a sensor technology, and accurate positioning and path planning are realized. The irrigation coverage range of the sprinkler in a farmland can be more uniform, the situation of irrigation leakage or repeated irrigation is avoided, and the irrigation precision and effect are improved.

The invention discloses a mechanical automation scheduling test method and system, and relates to the field of mechanical electronic data processing. The method comprises the following steps that the machining process is monitored, and machining parameter data are obtained; the drilling machining condition is analyzed; an edge milling qualification degree evaluation index is obtained according to the machining parameter data, and the edge milling machining condition is analyzed; machining adjustment is conducted according to the drilling machining condition and the edge milling machining condition; after machining adjustment is finished, mechanical task completion condition parameter data are obtained; and according to the mechanical task completion condition parameter data, analyzing the mechanical task completion condition and performing scheduling. According to the invention, the mechanical task completion condition is analyzed and scheduled according to the mechanical task completion condition parameter data, so that the effects of reasonably scheduling according to the state of the equipment and task requirements and improving the production efficiency are achieved; the problem that in the prior art, reasonable scheduling cannot be conducted according to the state of equipment and task requirements, and consequently production efficiency is low is solved.

The utility model relates to the technical field of COB light sources, and particularly discloses a constant-voltage normally-installed single-color COB which comprises a COB substrate, a light source installation groove and a plurality of constant-voltage IC chip installation grooves communicated with the light source installation groove are formed in the COB substrate, a plurality of light-emitting lamp wick sets are arranged on the light source installation groove, and the light-emitting lamp wick sets are arranged on the COB substrate. A constant-voltage IC chip is arranged on the constant-voltage IC chip mounting groove, a light-proof silica gel layer is coated above the constant-voltage IC chip mounting groove, a plurality of power supply bonding pads are arranged at the diagonal positions of the COB substrate, and the constant-voltage IC chip is electrically connected with the light-emitting lamp wick and the power supply bonding pads respectively. According to the utility model, the constant-voltage IC chip is installed by arranging the constant-voltage IC chip installation groove, and the light-shielding silica gel layer is coated above the constant-voltage IC chip installation groove, so that a plurality of grooves are not required to be formed, a lamp wick and a constant-voltage device can be reasonably arranged, the space of the COB substrate is fully utilized, the production efficiency is improved, and the light-shielding effect of the constant-voltage IC chip can be improved; the light shielding effect is good, and the light emitting efficiency is high.

The invention provides a freshwater fish pond water temperature monitoring method, system, medium and equipment, and relates to the technical field of freshwater fish pond cultivation, a fish pond water temperature data set is formed based on water temperature data of different levels of a fish pond water body and data such as meteorological factors and water quality parameters, and the data set is preprocessed; according to the method, a preprocessed data set is utilized, meteorological factors of the day and a set time period are screened out to serve as forecasting factors, statistical methods such as multiple regression, stepwise regression and fuzzy clustering are adopted, and freshwater fish pond water temperature forecasting models under different weather types such as a low-temperature and low-illumination type, a rapid temperature and pressure reduction type and a high-temperature and stuffiness type are constructed.

The invention provides a water jet combined drilling device and a method thereof.The device comprises a combined drilling tool, a drilling machine body, a pneumatic spiral sand supply system, a low-pressure water supply unit and a high-pressure jet water power unit, the drilling machine body is provided with the combined drilling tool and a pipeline for high-pressure water and abrasive materials to pass through inside a drilling rod, and the low-pressure water passes through the outer side of a drilling bit; the high-pressure water pipeline channel is connected with the high-pressure jet water power unit through a swivel joint; the low-pressure water channel is connected with a low-pressure water supply unit through a swivel joint; the mixed abrasive medium channel is connected with the pneumatic spiral sand supply system through a swivel joint; the pneumatic spiral sand supply system specifically comprises a pressurizing device, a sand tank and a spiral stirring device, the spiral stirring device is arranged in the sand tank, grinding materials in the pneumatic spiral sand supply system are evenly stirred through the spiral stirring device, then the airtight gas tank is pressurized, the grinding materials flow out through the bottom and flow to a jet flow nozzle through a pipeline to be jetted out, the pressure of a supply pipeline is increased, and the grinding materials are evenly stirred. And grinding materials are uniformly mixed, and the cutting effect is improved.

The utility model discloses a wet-process phosphoric acid purification and arsenic removal system, and relates to the technical field of wet-process phosphoric acid purification and impurity removal. The system comprises a phosphoric acid raw material tank, a Venturi jet reactor, a tubular washing absorber, a reaction washing curing tank and a hydrogen sulfide reactor which are sequentially connected, wherein the hydrogen sulfide reactor is also communicated with the Venturi jet reactor; the reaction washing and curing tank is communicated with an arsenic removal filtering assembly; and the arsenic removal filtering assembly is communicated with the phosphoric acid raw material tank. The problems that an existing arsenic removal system is large in sodium sulfide adding amount, hydrogen sulfide leakage is prone to occurring, the system is complex, and the arsenic index is difficult to control flexibly are solved.

The invention relates to the technical field of data mining, in particular to a method and a system for generating a printed circuit board design drawing. The method comprises the following steps: obtaining customer demands, structuring the customer demands into circuit board design demand data, and then carrying out mode clustering to obtain design demand mode data; acquiring a historical design log, performing circuit board hierarchical design clustering based on the historical design log to obtain historical hierarchical design data, and performing wiring structure topology analysis to form a wiring structure model set; quantifying a wiring demand, obtaining wiring demand data based on demand mode data, and matching the hierarchical wiring structure model set to form a matching model; the layout component is used for carrying out component layout on the matched wiring structure model, generating component layout data and planning the direction of a signal line to form a hierarchical structure model; and performing electromagnetic interference simulation, optimizing the hierarchical structure model based on simulation data to balance heat flow, and finally generating a circuit board design drawing. The design efficiency of the circuit board can be improved.

The invention discloses an ecological restoration method for salinized land in a semi-arid region based on a natural solution. The ecological restoration method comprises the following steps: S1, defining a plurality of ecological restoration regions; s2, planting plants; in each ecological restoration area, high-layer plants are planted on a circle of the edge of the ecological restoration area, and a circle of middle-layer plants and a circle of low-layer plants are sequentially planted into the ecological restoration area; s3, arranging an ecological restoration area; according to the invention, an ecological restoration area with multi-layer plant distribution can be formed, the restoration and improvement of biodiversity are facilitated, and through the arrangement of the first groove, the sand barrier and the spacing between the first groove and the sand barrier, the purpose that seeds of plants in each layer stay in or near the first groove along with wind to achieve sowing and growth can be achieved in the subsequent year; multiple layers of plants along the first grooves are formed, the ecological restoration effect is enhanced, subsequent sowing through wind power is facilitated, and manual close planting is not needed any more.

The invention provides a seabed CO2 storage induced fault activation micro-seismic monitoring system and an identification method. The method comprises the following steps: acquiring a data signal in a seabed CO2 injection process; calculating the distance between the monitoring position and the seismic source based on the data signal to locate the seismic source position; obtaining a seismic source moment tensor and a moment magnitude based on the seismic source position, and obtaining a seismic source mechanism solution based on the seismic source moment tensor; taking the seismic source mechanism solution as a clustering parameter, performing spatial clustering analysis on all microseismic events in the seabed CO2 injection process, and obtaining a potential hidden fault corresponding to each cluster; and for all micro-seismic events on each potential hidden fault, magnitude-frequency number linear fitting is carried out based on the moment magnitude, an earthquake b value of seismic activity on the fault surface is obtained, and fault activation is identified based on the earthquake b value. According to the invention, real-time monitoring of the fault state in seabed CO2 geological sequestration can be realized, and possible fault activation can be identified.

The utility model relates to the technical field of batteries, and discloses a battery module and a battery pack, and the battery module comprises a battery cell assembly and a heat management assembly. A plurality of battery cell assemblies are arranged; the heat management assembly comprises a first liquid cooling plate and a second liquid cooling plate which are oppositely arranged as well as cross beams and longitudinal beams which are connected between the first liquid cooling plate and the second liquid cooling plate, the cross beams and the longitudinal beams divide the space between the first liquid cooling plate and the second liquid cooling plate into a plurality of first accommodating spaces, and the plurality of battery cell assemblies are correspondingly arranged in the first accommodating spaces respectively; and the first liquid cooling plate, the second liquid cooling plate, the cross beam and the longitudinal beam are respectively connected with the battery cell assembly in a limiting manner. According to the utility model, the battery cell assembly and the thermal management assembly are integrated, so that the structure of the battery module is more compact, and the energy density of a battery pack is favorably improved; when the battery module is assembled with the battery pack shell, the whole battery module and the battery pack are directly positioned, mounted and fixed at one time, so that the positioning connection of the battery core assembly, the heat management assembly and the battery pack shell can be realized, and the assembly process is saved.

The invention provides a hydrogen energy power system suitable for a magnetic suspension railway vehicle. The hydrogen energy power system comprises a hydrogen storage system, a hydrogen fuel cell system, a heat dissipation and cooling system, an air filter, a connector and an electronic control unit (ECU). The hydrogen storage system comprises a hydrogen storage control unit (HSU), the hydrogen fuel cell system comprises a power control unit (PCU), and the ECU is used for collecting and processing state information of each system and sending out a control instruction; the ECU is connected with the PCU and the HSU, and the ECU serves as a main control unit and is responsible for receiving an instruction from a vehicle or a train operator and coordinating work of the PCU and the HSU according to the current running state of the vehicle; and the ECU sends a power demand instruction to the PCU and sends a hydrogen supply instruction to the HSU so as to ensure that the fuel cell can output corresponding power according to needs. The engineering construction cost of the track in the project is reduced, the project construction time is saved, funds are saved, and the method is environment-friendly.

The invention belongs to the technical field of aviation, and relates to an aircraft back large array plane mounting structure. Comprising a wave-transparent radome (1), an array plane antenna mounting platform (2) and an array plane antenna (3), the array plane antenna mounting platform (2) is made of a pre-stretching plate 7075-T7451-delta material, the whole array plane antenna mounting platform (2) is machined and formed by a numerical control machine tool, the inner shape of the array plane antenna mounting platform (2) is attached to the outer shape of the upper portion of an aircraft skin, and the upper surface of the array plane antenna mounting platform (2) is a plane; the array antenna mounting platform (2) is fixedly connected with an aircraft skin through the platform connecting bolt supporting plate nut standard component (5); the array antenna (3) is mounted on the upper surface of the array antenna mounting platform (2); the shape of the rectification wave-transparent cover (1) is symmetrical to the symmetrical center line of the airplane.

The invention discloses a single-layer spherical reticulated shell steel structure construction method based on a BIM technology, relates to the technical field of steel structure construction, and aims to solve the problem that construction data cannot be obtained in time in the construction process of a single-layer spherical reticulated shell steel structure. Therefore, real-time acquisition and analysis of resource configuration, structural performance data and quality control data are optimized, quality problems in the construction process can be found and processed in time, when the risk threshold value of target real-time construction data is higher than a preset risk threshold value critical point, an early warning mechanism can be started quickly, and the early warning efficiency is improved. The construction risk is effectively prevented from being further expanded, the safety of the construction equipment in the operation process can be ensured by carrying out collision and overload detection on the construction equipment, the time line of each construction stage can be clearly displayed through the BIM technology, and project management personnel can reasonably arrange the construction sequence.

The invention discloses a distributed energy storage-based three-phase imbalance optimization method and system for a power distribution area, and the method comprises the steps: obtaining the operation parameters of the power distribution area containing distributed energy storage, calculating the three-phase imbalance degree of the power distribution area containing distributed energy storage according to the operation parameters, and building a three-phase imbalance power distribution system; establishing constraint conditions related to the three-phase unbalanced power distribution system, wherein the constraint conditions at least comprise a characteristic constraint of considering a PV type distributed power supply in load flow calculation and a charging and discharging characteristic constraint of considering distributed energy storage; and reconstructing an optimization model based on the three-phase unbalanced power distribution system and the constraint condition by using an improved particle swarm algorithm, and solving the optimization model. The method can effectively reduce the three-phase unbalance degree of a power distribution area, improves the quality of electric energy, optimizes the charging and discharging strategy of distributed energy storage, prolongs the service life of energy storage equipment, and improves the efficiency and accuracy of optimization calculation through improving the particle swarm optimization.

The invention relates to the technical field of tourism information service, and discloses an AI accompanying service method and device applied to scenic spot tourism, and the method comprises the steps: obtaining scenic spot traffic information and user position information; calculating the commuting time of each road from the current starting point to the recommended scenic spot according to the scenic spot traffic information and the user position information; selecting the road with the shortest time as a recommended commuting route according to the commuting time; acquiring people number distribution information around the scenic spot, and calculating a people number distribution thermodynamic diagram according to the people number distribution information; according to the number of people distribution thermodynamic diagram, carrying out optimal playing route analysis to obtain a recommended playing route; and sending the people number distribution thermodynamic diagram, the recommended commuting route and the recommended playing route to a display device, and visually displaying to a user. The method can recommend the playing route according to the flow of people, and improves the use and playing experience of the user.

The invention relates to the field of intelligent corpora, in particular to an intelligent vertical business corpus construction and real-time intention recognition system which comprises equipment carrying an intention recognition system, and the intention recognition system comprises a voice input module, a semantic database and a voice output module. The semantic database is respectively connected with the voice input module and the voice output module, and the voice input module and the voice output module are respectively used for voice receiving and voice output. Through comprehensive corpus construction, fine word segmentation processing and reasonable weight presetting, various complex and diversified language expressions can be dealt with, and the intention of the user can be more accurately captured in various fields needing language interaction with the user and understanding the intention of the user, such as customer service consultation, intelligent navigation and the like.

The utility model relates to the technical field of automobiles, in particular to a combined support and a vehicle electrical system thereof, which comprise layer frames, the layer frames comprise a first layer frame, a second layer frame and a third layer frame which are arranged from top to bottom, the combined support further comprises supporting assemblies, and the first layer frame, the second layer frame and the third layer frame are connected through the supporting assemblies. The first shelf, the second shelf and the third shelf are all provided with a plurality of adjustable mounting stations for mounting electric appliance parts; the supporting assembly and / or the third shelf are / is connected with a first installation support used for installing a radiator, and the first installation support is located on the side portion of the shelf. The utility model is convenient to install, can integrate all electric appliance parts into a whole, saves space, and can improve the assembly line efficiency of the whole vehicle.

The invention relates to the technical field of wastewater treatment, and discloses an efficient electroplating wastewater treatment process which comprises the following steps: setting one or more bubble guide pipes by acquiring the volume of a reaction tank, and setting the bubble guide pipes by selecting the longest line section as a path according to the liquid level outline of wastewater, according to the invention, each bubble conduit is divided into one or more test areas, and different adjustment strategies are adopted for the corresponding number of bubble conduits by observing the bubble density of the test areas in real time to ensure that the bubble density in the reaction tank can reach the qualified standard, so that the wastewater treatment efficiency can be improved.

The utility model relates to the technical field of gas stoves, in particular to a gas stove fire operation out-of-person flameout protection system which comprises a gas stove body, the gas stove body comprises a gas stove burner, and the gas inlet end of the gas stove burner is connected with a gas supply pipeline. A human body induction module is arranged on the gas stove body and is used for monitoring whether a user on the front side of the gas stove body is on site; the signal input end of the controller is connected with the signal output end of the human body induction module; and the control end of the controller is connected with the control end of a firepower control part structure of the gas stove body so as to control a switch of a gas source of the gas stove. The utility model has the characteristics that the structural design is simpler and more reasonable, and protection measures can be better taken after people leave.

The invention provides an intelligent coal blending combustion method and system, and relates to the technical field of thermal power generation, and the method comprises the steps: collecting combustion parameter information of different coal types, related indexes of each combustor of a boiler corresponding to the combustion parameter information, the consumption amount of each type of fire coal per month, and the minimum load requirement of the boiler; establishing a coal blending combustion DMD model based on the combustion parameter information, the related indexes, the fuel coal consumption amount and the minimum boiler load requirement, wherein the coal blending combustion DMD model is used for minimizing the fuel cost and meeting the boiler load requirement; solving the coal blending combustion DMD model by adopting an Excel planning solving tool, determining the usage amount of each combustor for different coal types, and generating an optimal coal blending scheme; according to the method, the coal blending combustion DMD model based on the combustion parameter information, the related indexes, the fire coal consumption amount and the boiler minimum load requirement is established, and an Excel planning solving tool is adopted for solving, so that the fuel cost can be minimized, and meanwhile, the boiler load requirement is met, and pollutant emission is controlled.

The utility model relates to the technical field of COB light sources, and particularly discloses a constant-voltage front-mounted double-color COB, which comprises a COB substrate, a light source mounting groove and a plurality of constant-voltage IC chip mounting grooves communicated with the light source mounting groove are arranged on the COB substrate, a plurality of warm light chips and cold light chips are arranged on the light source mounting groove, and the constant-voltage IC chip mounting grooves are communicated with the light source mounting groove. A constant-voltage IC chip is arranged on the constant-voltage IC chip mounting groove, a light-shielding silica gel layer is coated above the constant-voltage IC chip mounting groove, a plurality of power supply bonding pads are arranged at the diagonal positions of the COB substrate, and the constant-voltage IC chip is electrically connected with the warm light chip, the cold light chip and the power supply bonding pads respectively. The constant-voltage IC chip is installed by arranging the constant-voltage IC chip installation groove, a lampwick and a constant-voltage device can be reasonably arranged, the space is fully utilized, uniform light emitting is achieved, the light shielding effect is good, the light emitting efficiency is high, and the application range is wide.