87 results about "Horizontal angle" patented technology

The invention discloses a power transmission line foundation pit three-dimensional laser radar equipment error self-correction control method, and relates to the technical field of power transmission line construction, and the method comprises the following steps: firstly, defining the distance from three-dimensional laser radar equipment to a target point, a horizontal included angle and a vertical included angle based on a Cartesian coordinate system; determining an initial coordinate of the target point; secondly, selecting a reference control point, removing noise and gross error points, correcting offset in the vertical direction, and finely processing point cloud data; thirdly, defining errors in the X-axis direction, the Y-axis direction and the Z-axis direction, and establishing an error correction model; and finally, based on the observation value and an error correction model, carrying out self-correction on the target coordinate, and carrying out correction through an environment feature self-adaptive error weight distribution mechanism. According to the method, closed-loop iterative optimization is performed through a multi-level data verification mechanism, the measurement precision is ensured, the operation efficiency is improved, the environmental adaptability is enhanced, and the method is suitable for power transmission line foundation pit division operation under complex terrains.

The invention relates to the technical field of flow field measurement, in particular to an ocean flow field measurement method and device, and provides the following scheme: the method comprises the following steps: collecting ocean environment parameters through a vertical sensor, determining an overlook angle of an inclination sensor based on an optimization algorithm, and generating a virtual Doppler measurement array through micro-amplitude scanning; inputting to a chaotic oscillator network to identify a Lyapunov exponent maximum direction, and determining a horizontal included angle of a second inclination sensor; furthermore, a frequency shift signal is collected, and the flow velocity and the flow direction are calculated by combining adjusting parameters, so that high-precision and high-adaptability flow field measurement is realized; the method has a dynamic response capability, and is suitable for direction structure identification and real-time flow direction calculation under complex sea conditions.

This invention provides a portable surveying device for water conservancy projects, relating to the field of water conservancy engineering surveying technology. It includes a support frame; a motor A is fixedly installed at the upper part of the support frame, with the top of the motor A's shaft fixedly connected to the bottom of a gear assembly. An angle disk is fixedly installed at the top of the gear assembly. Motor B, in conjunction with the gear assembly, enables electric micro-adjustment of the horizontal angle. Combined with the angle disk and indicator frame, the angle value can be read intuitively, achieving high adjustment accuracy. When the slider is centered, the angle disk automatically returns to zero, quickly establishing a surveying benchmark and improving angle adjustment efficiency. This invention solves the problems of existing water conservancy surveying devices, which mostly rely on manual adjustment of the horizontal angle, resulting in low adjustment efficiency, poor positioning accuracy, and a lack of automatic zeroing and precise angle locking structures, making it difficult to meet the high-precision surveying requirements of water conservancy projects.

This invention discloses an automatic leveling geographic surveying instrument, belonging to the field of geographic surveying technology. The invention first acquires the tilt angle and tilt angle change rate of the total station base in real time, dividing station settlement into three stages: micro-settlement, significant settlement, and sudden settlement. For the micro-settlement stage, real-time error compensation is achieved through elevation correction of the line-of-sight height-time fitting curve and vertical axis tilt horizontal angle correction. For the significant settlement stage, high-precision automatic leveling based on a kinematic model, physical compensation for the three-dimensional displacement of the instrument center, and orientation reset are executed sequentially. For the sudden settlement stage, shutdown alarm and abnormal data marking are implemented. This invention also includes surveying instrument hardware with electrically telescopic outriggers and a multi-sensor system, adaptable to surveying operations in complex geological conditions, balancing measurement accuracy, operational continuity, equipment safety, and data utilization.

This invention discloses a self-correction control method for errors in a three-dimensional lidar device for foundation pit marking in power transmission lines, relating to the field of power transmission line construction technology. The invention is implemented through the following steps: First, based on a Cartesian coordinate system, the distance, horizontal angle, and vertical angle from the three-dimensional lidar device to the target point are defined to determine the initial coordinates of the target point. Second, reference control points are selected, noise and gross errors are removed, vertical offsets are corrected, and point cloud data is refined. Next, errors in the X, Y, and Z axes are defined, and an error correction model is established. Finally, self-correction of the target coordinates is performed based on the observed values ​​and the error correction model, and correction is achieved through an environmental feature-adaptive error weight allocation mechanism. This invention uses a multi-level data verification mechanism for closed-loop iterative optimization to ensure measurement accuracy, improve operational efficiency, enhance environmental adaptability, and is suitable for foundation pit marking operations in complex terrain.

Provided in the present application are an antenna, a communication device and a communication system. The antenna comprises a radome, a reflector plate and an adjustment device. The reflector plate and the adjustment device are arranged inside the radome to prevent impurities such as dust and moisture from damaging the adjustment device, thereby improving the reliability and stability of the adjustment device. The reflector plate is provided with a radiation unit array; and the adjustment device comprises a driving mechanism and a transmission mechanism, the transmission mechanism being connected between the driving mechanism and the reflector plate, the driving mechanism driving, by means of the transmission mechanism, the reflector plate to rotate around a first direction and a second direction, the first direction being perpendicular to the second direction, and the first direction and the second direction being respectively parallel to the reflector plate. The adjustment device adjusts the reflector plate to rotate around the first direction relative to the radome, thereby achieving the adjustment of the pitch angle of a radiation beam. The adjustment device adjusts the reflector plate to rotate around the second direction relative to the radome, thereby achieving the adjustment of the horizontal angle of the radiation beam emitted by the radiation unit array.

The application provides a resistivity-based apparent resistivity correction method, system, medium and equipment, and relates to the technical field of electric field detection. The technical scheme provided by the application generates an in-group control scheme by matching a preset optimization target corresponding to an attribute label, adjusts a target control scheme according to inter-group influencing factors, and can adaptively adjust a measurement strategy according to geological characteristics. After collecting a vector receiving voltage, the initial apparent resistivity is vector synthesized according to a horizontal angle to obtain a target apparent resistivity, effectively solving the problem that a single component signal is weak and susceptible to noise interference in the traditional resistivity method. When a certain direction component signal is particularly weak or abnormal, the vector synthesis mechanism can avoid the appearance of negative apparent resistivity, improving data stability. The improvement of the final input data quality and the full use of vector information significantly improve the convergence of the inversion algorithm and the stability of the solution, can perform vector synthesis on the component signal, and improve the inversion effect of the resistivity method.

The invention relates to the technical field of astronomical teaching instruments, and discloses a teaching science popularization horizontal type celestial globe which comprises a base and symmetrically arranged arc-shaped supports, the tops of the arc-shaped supports are fixedly connected with a horizontal ring, the inner sides of the arc-shaped supports are rotatably provided with a meridian circle, the outer side of the base is provided with a horizontal adjusting assembly, and the horizontal adjusting assembly is fixedly connected with the arc-shaped supports. An auxiliary assembly is arranged at the top of the mounting ring, the levelness adjusting assembly comprises vertical grooves symmetrically formed in the bottom of the base and piston blocks slidably mounted in the vertical grooves, an upper ring body is fixedly connected to the top of the base, and adjusting rods are symmetrically mounted on the outer side of the upper ring body in a threaded mode. The supporting rod and the horizon ring can be adjusted to a horizontal angle according to the liquid bubble display of the liquid bubble level meter, so that the base and the placing surface are stably adsorbed and compressed, the levelness of the celestial globe during observation is conveniently kept, and the placing stability and the observation precision of the device main body are kept during subsequent rotating observation.

The invention discloses a TBM (Tunnel Boring Machine) tunneling attitude control method in snakelike and multi-class surrounding rock stratums of a tunnel, and relates to the technical field of double-shield TBM tunneling construction. Comprising the following steps: initializing a VMT guiding system additionally provided with a laser transmitter; setting a balance pressure value, a tunneling unearthing amount and a propelling speed; tunneling is started, and construction coordinates on the TBM are determined by measuring the inclination distance, the horizontal angle and the vertical angle through the total station; the pea gravel blow-filling and grouting timeliness, the control point rechecking timeliness and the gap between the shield tail and the duct piece are controlled; the double-shield TBM curve tunneling posture and the deviation correction amount are calculated; the tunneling deviation correction amount of the dual-mode TBM is controlled through posture direction adjustment, rolling deviation correction, vertical deviation correction and horizontal deviation correction; it is ensured that the shield tunneling machine smoothly goes out of the hole and reaches the receiving base. According to the method, the problems of line type overrun of the shield tunneling machine, duct piece cracking, excavation face instability and the like are effectively avoided, and the construction quality and safety of a shield tunnel are guaranteed.

The application discloses a kind of angle measurement method, device, equipment and storage medium of double-inclined angle plate piece, the method comprises: the angle plate piece of two-way inclined structure in ship is modeled, respectively original near center line, original angle line and original upper edge line vertical projection in plan view, obtain vertical near center line, vertical angle line and vertical upper edge line, then horizontal projection to horizontal near center line, horizontal angle line and horizontal upper edge line, according to vertical near center line, vertical angle line and vertical upper edge line, and horizontal near center line, horizontal angle line and horizontal upper edge line construct the angle of angle plate piece angle line method surface angle, finally measure the degree of angle line method surface angle as the angle of angle plate piece. With the normal angle of double-inclined angle plate piece as processing basis, accurate reference is provided for angle rolling processing, the processing difficulty of double-inclined angle plate piece is reduced, the lofting development efficiency of double-inclined angle plate piece is effectively improved, and production cost is saved.

The invention provides a jig correction method and operation equipment. The jig correction method comprises the following steps of: providing a jig which is positioned in a carrying flow path capable of carrying an object to be carried and can selectively hold the object to be carried; providing an operation device, wherein the operation device is provided with a distance sensor; the operating device is driven to move to the position above the jig, the distance sensor measures different positions of the jig to obtain a plurality of measured values, and the horizontal angle of the jig is adjusted according to the measured values; therefore, the levelness of the jig can be automatically measured, and the levelness is used as a basis for subsequently adjusting the horizontal angle of the jig.

The application discloses a kind of based on background point cloud fine processing laser radar and camera joint calibration method, comprising: using laser radar and visible light camera to build experimental device, and construct the optimization equation for solving calibration matrix;The foreground point cloud of the calibration object scanned by laser radar is fitted as a straight line;For the straight line fitted, obtain the background point cloud of laser radar in the same scan line with it;According to horizontal angle, solve the edge point of calibration object;The three-dimensional feature point of calibration object is solved using the obtained edge point;The three-dimensional feature point obtained and the corresponding two-dimensional feature point obtained by visible light camera are brought into optimization equation to solve calibration matrix.The application can obtain the edge point of calibration object scanned by laser radar with high precision and solve accurate three-dimensional feature point, avoid the problem of insufficient feature point accuracy caused by low horizontal resolution of laser radar, thereby improve joint calibration accuracy.

The invention discloses a speed-up railway precision conductor construction method with virtual control points added, which comprises the following steps: S1, arranging conductor points in a staggered manner along two sides of the advancing direction of a speed-up railway line, and arranging the virtual control points between the adjacent conductor points; s2, arranging total stations on each traverse point one by one, and arranging prisms on two front and back adjacent traverse points and adjacent virtual control points; observing each prism by using a total station to obtain a horizontal direction, a slant distance and a vertical angle from the center of the total station to the center of each prism; s3, performing gross error detection analysis on the observation values, and rejecting the detected gross error observation values or re-measuring the observation stations where the gross error observation values are located; and S4, establishing an acceleration railway conductor control network with virtual control points by using all reliable horizontal angles and horizontal distances. According to the method provided by the invention, on the premise of not increasing the burying cost of the control points, on the basis of the connecting wires, only several temporary target points are observed by each observation station, so that the effect of remarkably improving the precision and reliability of the control network is achieved.

The application discloses a multi-scene robust Bluetooth AOA indoor positioning method, which comprises the following steps: obtaining the IQ value of each antenna array element; solving the phase of each antenna array element; performing eigenvalue decomposition on the covariance of the antenna array phase to obtain a signal space and a noise space; calculating the horizontal angle and the pitch angle that make the spatial spectrum P MUsIC The horizontal angle and the pitch angle that make the spatial spectrum P The application can improve the robustness of the angle, thereby improving the positioning precision.

The invention discloses a radar signal processing method, a filtering method, a filtering circuit, a radar signal processing device, an integrated circuit and an electromagnetic wave sensor. The radar signal processing method comprises the steps that after FIR filtering is carried out on a to-be-processed signal, DFT operation is carried out to acquire target characteristic parameter data; the target characteristic parameters comprise at least one of a distance, a speed, a horizontal angle and a pitch angle; wherein the FIR filtering is configured to suppress at least one of a truncation effect and a frequency leakage existing in the DFT operation.

The application relates to an auxiliary drawing instrument for a three-dimensional size map, which comprises an angle measuring system, a connecting part and a distance measuring system, wherein the angle measuring system comprises a horizontal angle measuring system and a vertical angle measuring system; the horizontal angle measuring system is horizontally arranged and can measure a horizontal rotation angle; the vertical angle measuring system is vertically arranged above the horizontal angle measuring system through the connecting part and can measure a vertical rotation angle; and the distance measuring system is horizontally arranged outside the vertical angle measuring system; the coordinates of a point in a three-dimensional space are calculated through the values of the horizontal angle measuring system and the vertical angle measuring system and the distance measured by the distance measuring system; the specific shape of a certain three-dimensional space can be known according to the continuously measured point information; the measuring precision is greatly improved; the measuring time is shortened; the device is simple to use; the measuring efficiency is effectively ensured; labor and labor cost are greatly saved; and the device is extremely practical.

The utility model discloses an angle-adjustable radar wave velocity measurement device, which comprises a radar wave velocity meter, a positioning assembly and an aluminum plate, the lower end of the aluminum plate is fixedly connected with two mounting plates, a main shaft is rotatably connected between the two mounting plates, one end of the main shaft is fixedly provided with a bracket, and the main shaft is provided with a horizontal adjusting mechanism for adjusting the horizontal angle of the bracket. One end of the support is rotationally connected with a shell, a pitching adjusting motor is installed in the shell, the radar wave current meter and the positioning assembly are installed in the shell, and the aluminum plate is provided with a plurality of fixing assemblies used for being connected with a cableway. According to the utility model, the horizontal angle and the pitching angle of the radar wave flow velocity meter can be adjusted in real time according to the change of the water level, so that the radar wave beam and a lead fish monitoring point can be positioned on the same vertical line, the water flow velocities at different water depths are compared, and the monitoring precision of the water flow velocity is improved.

The utility model relates to the field of surveying and mapping equipment, and discloses high-voltage line migration and transformation intelligent auxiliary surveying and mapping equipment which comprises a supporting frame, a connecting groove is formed in the top of the supporting frame, a rotating ball is rotatably mounted on the inner wall of the connecting groove, a mounting frame is fixedly connected to the top of the rotating ball, and a total station body is fixedly mounted at the top of the mounting frame; a pull rod is fixedly connected to the bottom end of the rotating bead, a hook is clamped to the surface of the pull rod, a vertical frame is fixedly installed at the bottom end of the hook, and the size specification of the surface of the rotating bead is matched with the size specification of the inner wall of the connecting groove. The rotating ball is connected with the connecting groove in the mounting frame, the pull rod is mounted at the bottom end of the rotating ball, and the vertical frame is mounted at the bottom end of the pull rod through the hook, so that surrounding stones can be conveniently placed in the vertical frame, and the mounting frame at the top of the rotating ball is kept at a horizontal angle by dint of the drooping force of the vertical frame; therefore, the horizontal angle of the total station body can be conveniently adjusted.

The application discloses an artificial corner reflector for synthetic aperture radar interferometry calibration, and relates to the technical field of measurement and monitoring, and solves the technical problem that an existing corner reflector is not easy to adjust the angle after being fixed, and the technical scheme is as follows: the corner reflector comprises a corner reflecting plate, a vertical angle control device and a horizontal angle control device, the vertical angle control device has a movable part, the movable part of the vertical angle control device is connected with the corner reflecting plate, and is used for controlling the rotation angle of the corner reflecting plate in the vertical direction; the horizontal angle control device has a rotating part, the rotating part of the horizontal angle control device is connected with the vertical angle control device, and is used for controlling the rotation angle of the vertical angle control device in the horizontal direction, so as to control the rotation angle of the corner reflecting plate in the horizontal direction. The application can easily and accurately adjust the angles of the corner reflector in the horizontal and vertical directions, so as to satisfy the incidence of different satellite radar waves.

The utility model discloses a heat sights support integrated in the bow body, including the crossbar and the bow body, the crossbar detachable fixed in the bow body one side, the crossbar is installed the rotary adjustment of vertical direction's adapter block, the adapter block is installed the rotary adjustment of horizontal direction's fixed block, the fixed block is installed the display, the utility model discloses, the adapter block can realize the adjustment of the pitch angle relative to the crossbar, the adapter block can realize the adjustment of the horizontal angle relative to the fixed block, and then realize the adjustment of display angle, the support of the application is directly attached on the bow body, and the structure is small and exquisite, more portable.

The present invention discloses an intelligent design system for high-level gas extraction drilling, which relates to the technical field of high-level gas extraction. The key points of its technical solution are: combining the actual exploration and measurement conditions of the mine and setting up scenes in advance in the system based on OpenGL technology, preliminarily determining five drilling parameters that mainly affect high-level gas extraction through big data cloud analysis and calculation based on the measurement results and national coal mine standards, and accurately designing the high-level drilling parameter calculation system to obtain the three main determining parameters: the horizontal angle between the borehole and the return air channel, the borehole inclination angle, and the borehole length. Then, based on the calculation results, a simulation and visualization demonstration of the gas extraction drill bit operation trajectory is performed, so that the drilling parameters can be adjusted in real time and the drill bit movement trajectory can be grasped. It provides an automated means and scientific basis for high-level gas extraction work, effectively improves extraction efficiency, reduces the workload of technical personnel, and ensures the life safety of operators.

The application discloses a kind of mud-rock flow movement process two-dimensional numerical simulation method and system considering real channel cross section shape.The method obtains flow path point set, fluid front and rear edge coordinates, cross section point set and rheological parameter;Subsection flow path is constructed by using adjacent point straight line connection;Local coordinate system is established according to the horizontal angle of front and rear edge connection line, parabolic initial fluid profile is constructed in local coordinate system and volume is iteratively corrected;Cross section point set is sequentially connected to form arbitrary polygon cross section, area is calculated based on Green formula and lateral resistance is solved by block;Based on equivalent fluid assumption and Lagrangian finite difference framework, boundary block and mass block are divided, and mud-rock flow movement process is solved;Maximum movement distance of front edge, accumulation thickness and observation point impact kinetic energy time history are output.The application is simple in modeling, strong in applicability and high in precision.

The invention discloses an arch dam valley amplitude measuring method, device and system and a storage medium. The method comprises the following steps: acquiring meteorological data of a plurality of datum points, an instrument placement point, a highest elevation point and a lowest elevation point, and acquiring elevation information and measured values of a plurality of valley amplitude endpoints, including slant distances, vertical angles and horizontal angles; based on the meteorological data of the highest elevation point and the lowest elevation point and the elevation information of the valley amplitude endpoint, carrying out inversion to obtain meteorological data at the valley amplitude endpoint; constructing an error correction model representing a mapping relation between the meteorological data and the measurement error value by adopting a data-driven error modeling algorithm, and correcting the measurement value of the valley amplitude endpoint based on the error correction model to obtain a corrected measurement value; calculating a valley amplitude length based on the corrected measurement value; according to the invention, the manpower and instrument use cost for measuring the valley amplitude of the high arch dam is obviously reduced, and the measurement precision and the engineering applicability are improved.

The invention belongs to the technical field of projector parameter calibration, and particularly discloses a multi-distance-based projector parameter calibration method and a projector, and the method comprises the steps: firstly, calibrating internal parameters and external parameters of a projection light machine and a camera of the projector under a plurality of different distances, and obtaining calibration results under the plurality of distances; therefore, when the angle is calculated through actual keystone correction, according to the current distance, the calculated horizontal angles corresponding to the calibration parameters under the multiple distances are fused, and the fused more accurate horizontal angle is obtained. The calibration result of the current distance is calculated by fusing the calibration parameters of the multiple distances, adaptive calibration of the internal and external parameters of the projector and the camera under different distances is achieved, the calibration precision under different distances is improved, the horizontal angle obtained through calculation under different distances is more accurate, and keystone correction is more accurate.

The invention discloses a multimode personal positioning search and rescue beacon which comprises a support and a multimode beacon body used for positioning search and rescue of individuals, a mounting cavity is formed in the support, and a horizontal rotation adjusting mechanism is arranged in the mounting cavity. The multi-mode letter body can be rotationally adjusted along the front-back pitch angle and can also be rotationally adjusted along the angle position in the horizontal direction, and the rotary adjustment of the angle position in the horizontal direction and the adjustment of the front-back pitch angle of the multi-mode letter body can be matched at the same time; therefore, the multi-mode beacon body can be adjusted in any direction, so that the multi-mode beacon body can transmit a search and rescue signal at a better angle position, and the situations that in the past, people need to continuously and manually change the beacon direction, consequently, arm fatigue is easily caused, and positioning signals are easily interrupted are avoided. The beacon can fully play a role, it is ensured that position information positioning is more accurate, and adaptability is higher.

The utility model relates to the technical field of supports for engineering surveying and mapping instruments, and discloses an adjustable support for an engineering surveying and mapping instrument, which comprises a support main body, a supporting mechanism arranged at the bottom of the support main body, and an adjusting surveying and mapping mechanism arranged at the top of the support main body and arranged at the top of the supporting mechanism. The adjusting surveying and mapping mechanism comprises an adjusting assembly and a surveying and mapping assembly, the adjusting assembly is arranged at the top of the support body, the surveying and mapping assembly is arranged at the top of the adjusting assembly, and by pulling a movable supporting column, a second gear rod rotates towards the outside of the support body along a first gear rod in an engaged mode; a movable rod between a first lantern ring and a second lantern ring is straightened, so that a supporting mechanism is expanded until a bracket main body is stably placed, a horizontal angle of the surveying instrument is adjusted according to a dial by rotating a horizontal adjusting rod, and a vertical angle of the surveying instrument is adjusted by rotating a vertical adjusting rod; and the measured data is more accurate.

The application discloses an arch dam valley width measurement method, device, system and storage medium. The method comprises the following steps: acquiring meteorological data of a plurality of reference points, instrument installation points, elevation highest points and elevation lowest points, acquiring elevation information and measurement values of a plurality of valley width endpoints, including slant distance, vertical angle and horizontal angle; based on the meteorological data of the elevation highest points and the elevation lowest points and the elevation information of the valley width endpoints, meteorological data at the valley width endpoints is obtained by inversion; an error correction model representing the mapping relationship between the meteorological data and the measurement error values is constructed by using a data-driven error modeling algorithm, the measurement values of the valley width endpoints are corrected based on the error correction model, and corrected measurement values are obtained; and the valley width length is calculated based on the corrected measurement values. The application significantly reduces the labor and instrument use cost of high arch dam valley width measurement, and improves the measurement precision and engineering applicability.

The invention discloses a static target deformation monitoring and power failure self-recovery method based on a 4D millimeter wave radar, and relates to the technical field of radar signal processing and intelligent monitoring, and the method comprises the steps: carrying out the automatic recognition and locking of a preset static corner reflector through a movable dynamic auxiliary corner reflector, extracting four-dimensional characteristic parameters of the distance, the horizontal angle, the pitching angle and the relative speed; the parameters are used as calibration reference points to be issued to the 4D millimeter wave radar, and the parameters are written into a nonvolatile storage unit after high computing power matching is completed in a local search space; continuously collecting multi-frame point cloud data, screening neighborhood strong reflection points, and obtaining a combined distance value through median filtering; calculating the cumulative variable quantity of the current high-precision distance value relative to the initial calibration value by combining a super-resolution distance measurement algorithm to obtain a submillimeter-level deformation quantity DEF; and after the system is restarted after power failure, automatically loading the calibration parameters from the nonvolatile storage unit, re-matching the activated target and recovering real-time monitoring.

The utility model relates to the technical field of measuring devices, in particular to a land area measuring device. Comprising a supporting disc and further comprises a connecting disc which is fixedly connected to the bottom of the supporting disc, and a plurality of supporting legs are fixedly connected to the bottom of the connecting disc. According to the utility model, through the arrangement of the adjusting assembly, the horizontal angle position of the measuring assembly can be conveniently and effectively adjusted, so that the measuring assembly can effectively measure the land in different directions, and through the arrangement of the measuring assembly, the land can be effectively measured; and meanwhile, a worker can conveniently wind the measuring assembly, the winding efficiency of the measuring assembly is effectively improved, the extending length of the measuring assembly can be effectively fixed through the arranged locking assembly, the measuring assembly can be effectively cleaned through the arranged cleaning assembly, and the measuring assembly can be conveniently cleaned. And in addition, workers can conveniently disassemble, replace and clean the cleaning assembly.

The invention concerns a system (10) of a package (2) containing a product and an apparatus (1) using said product, the apparatus being refilled by the product contained in the package, wherein a code (21) related to the contained product is associated to the package, said code being a two dimension code and said code presenting a predetermined surface Scode, and wherein the apparatus comprises a code reader (11) to read the code associated to the package, said code reader being an image capturing device, said image capturing device being defined by : - a predetermined focal range, - a horizontal angle of view <semantics>α<annotation encoding="application / x-tex">\alpha< / annotation>< / semantics> and a vertical angle of view <semantics>β<annotation encoding="application / x-tex">\beta< / annotation>< / semantics>, wherein the apparatus comprises a housing structure (16) and a cavity (12) inside the housing structure, wherein the image capturing device is positioned at the back side of the cavity.