53results about How to "With wireless charging function" patented technology

The invention discloses an intelligent toothbrush with a camera shooting function. The toothbrush comprises a brush head and a brush handle, wherein a camera and a light source are disposed on the brush head, the camera is used to shoot images in an oral cavity, and the light source is used to supplement light for the camera; the brush handle has a hollow structure, and a control panel, a battery, an electric charging module and a wireless communication module are disposed inside; the battery and the electric charging module are connected to the control panel and used to provide electric energy for the intelligent toothbrush; the wireless communication module is connected to the control panel and used to transmit the images in the oral cavity to an external wireless receiving device in a wireless communication manner; and the control panel is also connected to the camera and the light source.

The invention discloses a multifunctional back splint device which is matched with a handheld device and comprises a body, a connection interface, a processing unit, a wireless transmission unit and a wireless charging unit; the body is covered on the back surface of the handheld device; the connection interface is arranged on the body and the handheld device receives multimedia data; the processing unit is arranged on the body and is connected with the connection interface; the processing unit receives the multimedia data and converts the multimedia data into packed data; the wireless transmission unit is arranged on the body and is connected with the processing unit, receieves the packed data, and outputs the packed data; the wireless charging unit is arranged on the body and is connected with the processing unit and the wireless transmission unit, and the wireless charging unit is used for generating induction current. Therefore, the multifunctional back splint device provided by the invention simultaneously has the function of the wireless transmission of the multimedia data and the wireless charging function.

The invention discloses a multi-functional handcuffs device which is arranged in electronic handcuffs. An intelligent MCU (Micro Control Unit) controller, a GPS (Global Positioning System) module, a GPRS (General Packet Radio Service) module, a battery, a wireless charging module, a plurality of function sensors and an alarm device are arranged inside the multi-functional handcuffs device in a sealed mode; the GPS module and the GPRS module are connected with the intelligent MCU controller for communication interaction; the battery is connected with the intelligent MCU controller for power supply; the wireless charging module is directly connected with the battery for wireless charging; the plurality of function sensors are connected with the MCU controller so as to transmit sensing signals to the MCU controller; the MCU controller is connected with the alarm device so as to control the alarm device to give an alarm. According to the multi-functional handcuffs device, the perfect function of the electronic handcuffs can be achieved and the wireless charging function, the positioning function, the wireless communication function, the alarm function, the waterproof function and the induction demolition and destruction function can be achieved.

The invention provides an intelligent wallet and a self-locking method adopted under the stolen situation.An opening of the intelligent wallet is provided with an intelligent lock, the intelligent lock is formed by multiple electromagnetic metal strips, anti-theft judgment and stolen judgment of the intelligent wallet are achieved in the dual verification modes of human biological characteristics and near-field broadcast echoing, a wireless charging module is arranged inside the intelligent wallet, a wireless charging function can be provided for the intelligent wallet, and a wireless charging function can be also provided for a mobile terminal in an intelligent wallet interlayer.The problem that a traditional wallet can be only at the discretion of a thief after being lost and has poor attractive appearance due to the fact that the traditional wallet depends on a lithium battery or wired charging is solved, the positioning and self-locking functions of the intelligent wallet after the intelligent wallet is lost are achieved, and the wireless charging function and the real-time remaining balance counting function of the intelligent wallet are achieved.

The invention discloses an electric toothbrush sterilizer with an intelligent charging function. The electric toothbrush sterilizer comprises a storage seat, a cover body and a wireless charging emission unit, wherein the storage seat is provided with an accommodating cavity for accommodating an electric toothbrush, and the accommodating cavity is provided with an opening which can be filled withthe electric toothbrush; the cover body is pivoted to the storage seat and can pivot between the opening position for opening the opening and the closing position for closing the opening; and the wireless charging emission unit is arranged in the cover body, when the cover body is positioned at the closing position, the cover body is adjacent to the handle of the electric toothbrush, so that the wireless charging emission unit in the cover body can be used for transmitting electric energy to a wireless charging receiving unit in the handle of the electric toothbrush. The electric toothbrush sterilizer with an intelligent charging function provided according to the embedment has a wireless charging function, can be used for sterilizing an electric toothbrush and charging the electric toothbrush, is convenient to use and can reduce cost of users.

The invention discloses a sterilizing device with a wireless charging function. The sterilizing device comprises a sterilizing box, a power supply, an ultraviolet-light emitting diode and a switch, wherein sterilizing space is provided in the sterilizing box; a sandwich structure with a cavity is arranged on the box wall of the sterilizing box; the power supply comprises a wireless charging module for converting electromagnetic-wave energy emitted by the wireless charger into electric energy and storing the electric energy into the power supply; the power supply is fixed in the cavity; the ultraviolet-light emitting diode and the switch are arranged in the cavity; the ultraviolet-light emitting diode is connected with the power supply by the switch; one end of the switch is exposed out of the box wall. The sterilizing device disclosed by the invention not only can sterilize objects, but also has a wireless charging function, and is waterproof and dustproof.

The invention relates to a remote control unit with functions of magnetic adsorption and wireless charging. The remote control unit can be connected with a main unit through WIFI (wireless fidelity); a body of the remote control unit has the magnetic adsorption function and can be automatically adsorbed to a correct position; the remote control unit has the wireless charging function, does not need a charge cable, is convenient and fast to charge and has dustproof and waterproof effects.

The invention provides a mobile phone bracket with wireless charging and a using method thereof, and belongs to the technical field of mobile phone brackets. The mobile phone bracket with wireless charging comprises an instrument table, a fixed seat, a fastening piece and a movable piece, wherein the fastening piece and the movable piece are located on the two sides of the fixed seat. The fastening piece and the fixed seat are integrally formed in an injection molding mode, the movable piece is connected with the fixed seat through a pull spring, a groove is formed in the upper end of the instrument table, and the fixed seat is located in the groove. A through hole is formed in the groove, the interior of the fixed seat is hollow and a buckle is arranged in the fixed seat, a wireless charging unit is connected to the interior of the buckle in a clamping mode, and a charging wire of the wireless charging unit penetrates through the fixed seat and the through hole and is electrically connected with automobile internal wiring harness. The mobile phone bracket with wireless charging has the advantages of not occupying automobile internal space, not blocking an air outlet, having simpleand convenient operation, being provided with wireless charging function and having high reliability.

The invention discloses a multifunctional rock plate heating and refrigerating device. The multifunctional rock plate heating and refrigerating device comprises a plate and a supporting element supported below the plate. The plate comprises a heat conduction panel provided with a power source control panel, a heating piece tightly attached to the lower portion of the heat conduction panel, and a supporting bottom plate located below the heating piece and used for fixing the heating piece. The supporting bottom plate is installed on the supporting element. An electromagnetic heating module, a storage drawer and a semiconductor refrigeration module located below the storage drawer are installed at the position of the supporting element, a heating disc of the electromagnetic heating module sequentially penetrates through the supporting bottom plate and the heating piece upwards and then is tightly attached to the lower portion of the heat conduction panel, and the semiconductor refrigeration module, the electromagnetic heating module and the heating piece are all connected with wires extending outwards. According to the multifunctional rock plate heating and refrigerating device, foodcan be prevented from becoming cold in the dining process, and the taste is guaranteed.

The invention discloses a remote control type garbage delivery intelligent robot. The remote control type garbage delivery intelligent robot comprises a main body structure, a control mechanism, a walking mechanism, a garbage throwing mechanism and a power supply mechanism, and the main body structure comprises a bottom plate, a bottom shell and an assembling base. According to the remote control type garbage delivery intelligent robot, the purpose of dumping garbage in a remote control mode can be achieved, walking road condition data can be obtained in real time, obstacles can be intelligently avoided, stable walking can be achieved, geographic position information of the robot can be obtained in real time, and the undesirable phenomenon that the remote control type garbage delivery intelligent robot accidentally gets lost can be avoided; and the remote control type garbage delivery intelligent robot can help people to dump garbage, can effectively reduce the workload of people, can save a lot of time for people to do other things, brings great convenience to life and work of people, has a wireless charging function, and can achieve the purpose of automatic charging, and therefore, the remote control type garbage delivery intelligent robot is high in intelligent degree and convenient to use.

The invention is suitable for the technical field of wireless charging and discloses a manufacturing method of a wireless charging coil and a wearable product. The manufacturing method includes following steps: utilizing 3D printing equipment to print electroconductive printing ink on a shell of the wearable product which is formed in advance; baking the wearable product after going through 3D printed to enable the electroconductive printing ink to be cured on the shell to form a 3D printing coil; binding a metal electroconductive feed point to one end of the 3D printing coil to obtain the wireless charging coil. Printability of the electroconductive printing ink and 3D printing technology are utilized to print the electroconductive printing ink on the shell of various structures of the wearable product to form and electroconductive coil, so that the shell is enabled to realize a wireless charging function; due to editability of 3D printing, the charging coil is quite easy to adjust and can meet various needs of different charging efficiency on line adjustment; due to large binding force of 3D printing electroconductive printing ink and the shell, a line and the shell form a whole while adverse circumstances like upwarping and stripping are avoided.

The invention discloses an automobile. The automobile comprises a solar cell panel and a mobile power source, wherein the mobile power source is provided with a lithium battery pack, a microprocessor, at least one wireless charging unit and a sensing module of the wireless charging unit, and the lithium battery pack comprises at lest one lithium battery. The solar cell panel is connected with the lithium battery pack, the solar cell panel is used for acquiring external solar energy and charging the lithium battery pack, the lithium battery pack is connected with the wireless charging unit and used for supplying power for the wireless charging unit, and the microprocessor is respectively connected with the lithium battery pack and the wireless charging unit. The sensing module is connected with the microprocessor and used for sensing the fact that an external terminal enters a charging area of the wireless charging unit corresponding to the sensing module, and the lithium battery pack and the wireless charging unit are controlled through the microprocessor to charge the terminal.

The invention relates a household electric connection system, and the system comprises a power connection guide rail (1). The power connection guide rail (1) consists of an insulating bottom box (11), conductive copper wires (12), an insulating supporting plate (16) for supporting the conductive copper wires (12), and an insulating box cover (13). The interior of the insulating bottom box (11) is provided with three groups of conductive copper wires (12), and the conductive copper wires (12) are respectively connected with a live wire, a ground line and a zero line of a power supply. The insulating box cover (13) movably covers the insulating bottom box (11). The insulating box cover (13) comprises a first insulating box cover (131) and a second insulating box cover (132), wherein the first insulating box cover (131) is sealed, and the second insulating box cover (132) is provided with a jack (1321). The power connection guide rail (1) can be connected with a plug of a household electric appliance. Compared with the prior art, the system does not need a power strip, is good in sealing, waterproof and dustproof effects, has a function of wireless charging, is convenient to use, is good in extensibility, is easy to install, is beautiful in structure, and is especially suitable for residential and business buildings.

The invention relates to the technical field of stereo equipment and provides a portable wireless charging stereo. The portable wireless charging stereo comprises a main device and an auxiliary device. The main device is provided with a first loudspeaker and a transmitting module, the auxiliary device is provided with a receiving module, a filtering processing circuit, an amplifying circuit and a second loudspeaker; the main device is provided with an induction coil and first positioning blocks, the auxiliary device is provided with an electrified coil, the induction coil and the electrified coil are arranged oppositely, and the main device enables the induction coil and the electrified coil to achieve accurate alignment by the cooperation between the first positioning blocks and the auxiliary device. The transmitting module firstly transmits a wireless signal, the receiving module receives the wireless signal, and then the wireless signal is transmitted to the filtering processing circuit for filtering processing and the amplifying circuit for amplification processing in sequence to enable the second loudspeaker to make low-pitched sound. Accordingly, the portable wireless charging stereo is good in sound quality and good in low-pitched sound. In addition, the main device enables the induction coil and the electrified coil to achieve accurate alignment by the cooperation between the first positioning blocks and the auxiliary device, the induced current is large, the charging effect is good, the power is large, the sound producing effect of the first loudspeaker is good, and the auditory effect is superior.

The invention discloses a mobile power having the wireless charging function, a control method and a storage medium. The mobile power includes a central processing chip which is connected with a wireless communication module and a wireless charging module, and is used for receiving preset index data transmitted by the wireless communication module, determining whether a to-be-charged terminal is arranged in the preset position of the wireless charging module and emitting a control instruction to the wireless charging module, a cell used for storing electric energy, a power supply module used for supplying power for the central processing chip, the wireless communication module used for acquiring the preset index data, and the wireless charging module used for starting or stopping chargingof the to-be-charged terminal according to the control instruction transmitted by the central processing chip. The mobile power is advantaged in that the to-be-charged terminal can be automatically inducted for charging without pressing a button to turn on the charging function, and operation is simplified for users.

The invention belongs to the technical field of unmanned aerial vehicle airports, and particularly relates to a multi-bin unmanned aerial vehicle airport with a wireless charging function. The airport comprises an airport main body and a wireless charging device arranged on the airport main body; the airport main body comprises a shell and multiple layers of parking aprons arranged in the shell, and each layer of parking apron is pushed by a pushing device to move out of or move into the shell; and the wireless charging device comprises a power interface, an inverter and transmitting coils which are electrically connected in sequence, each layer of parking apron is provided with the independent transmitting coil, the inverter inverts direct current into high-frequency alternating current under the control of a controller, and the transmitting coils transmit electric energy to receiving coils of unmanned aerial vehicles in a magnetic field coupling mode. The multi-bin unmanned aerial vehicle airport with the wireless charging function is provided with the multiple layers of push-pull parking aprons so that the multiple unmanned aerial vehicles can be parked and wirelessly charged at the same time; and a wireless charging mode is adopted, so that the structure is simple, and the charging reliability is high.

The invention discloses a wireless charging protection sleeve, and the protection sleeve comprises a protective sleeve, a receiving end circuit, a connection circuit, a charging port and an adjustment switch which is used for controlling and adjusting the receiving end circuit. The receiving end circuit is fixedly disposed at an inner side of the protective sleeve, and the exterior of the receiving end circuit is provided with a flat protection housing. The receiving end circuit and the charging port are connected with each other through the connection circuit. The protection sleeve is simple in structure, is convenient to use, and can carry out the wireless charging of various types of electric appliances with different DC voltages.

The invention provides a solar energy letter box. The solar energy letter box comprises a letter box body provided with a letter box door, a solar energy cell arranged on the outer surface of the letter box body, a photo-voltaic controller, an energy storage battery and an electronic lock arranged on the letter box door, wherein the photo-voltaic controller and the energy storage battery are arranged in the letter box body; the solar energy cell is connected with the photo-voltaic controller which is connected with the energy storage battery, and the electronic lock is connected with the output end of the photo-voltaic controller. According to the solar energy letter box, electric energy generated by the solar energy cell can be supplied to the electronic lock on the letter box to be used by people more conveniently.

The invention discloses an intelligent monitoring camera with an inspection function, which comprises a track and a wireless charger, a bearing is mounted at the top of the track, a push cylinder is connected in the bearing, a threaded rod is connected in the push cylinder, and a mounting plate is fixed at one end of the threaded rod. According to the intelligent monitoring camera with the inspection function, the motor is arranged and can work through the control equipment, so that a first bevel gear can be driven to rotate when the motor works, a second bevel gear can be driven to rotate when the first bevel gear rotates, and a rotating rod can be driven to rotate when the second bevel gear rotates; when the rotating rod rotates, the pulley can be driven to rotate, when the pulley rotates, the pulley can slide relative to the sliding groove, when the pulley slides, the moving block can be driven to move, when the moving block moves, the main body and the camera can be driven to move, when the camera moves, equipment can be inspected, and the camera can have the inspection function conveniently.

The invention discloses a light sensation intelligent lamp and a control method thereof.The light sensation intelligent lamp comprises a base, a lamp holder and a lamp cap. The lamp holder is connected with the base, the lamp cap is connected with the lamp holder through a lifting assembly, the lifting assembly comprises a fixing frame, a driving piece and a sliding block, the fixing frame is arranged in the lamp holder, and a guide column and a lead screw are arranged on the fixing frame; and the driving piece is installed on the fixing frame and connected with the lead screw, one end of the sliding block is provided with the guide column and connected with the lead screw, and the other end of the sliding block extends out of the lamp frame to be connected with the lamp holder. According to the light sensation intelligent lamp, lifting of the lamp holder is achieved through the lifting assembly, the lifting height of the lamp holder is in direct proportion to the brightness so that the brightness can be automatically adjusted, discomfort to the eyes of a user is avoided, the light sensation intelligent lamp is more intelligent, operation is convenient and easy, and meanwhile the wireless charging module is arranged in the base, and the light sensation intelligent lamp has a wireless charging function so that the multifunctionality of the light sensation intelligent lamp is improved.

The invention relates to the technical field of wireless charging, and discloses an assembling mechanism with a wireless charging function for electronic equipment. The mechanism comprises a desktop,a round hole I is formed in the upper end of the desktop, a charging pile is movably inserted into the round hole I, a round hole II is formed in the upper end of the charging pile, a sliding rail isarranged in the charging pile, and a sliding block is movably inserted into the sliding rail; a conical hole is formed in the sliding block, a circular truncated cone block is movably inserted into the conical hole, a third circular hole is formed in the circular truncated cone block, and a pipeline is fixedly connected to the upper end of the circular truncated cone block. The charging pile is inserted into the round hole I, then a fixing block is rotated, the fixing block drives a top plate to rotate, the top plate drives a pipeline to rotate, the pipeline pushes a circular truncated cone block to move downwards along a thread of a round hole IV under the rotating acting force, the circular truncated cone block abuts against a sliding block through the inclined side face to move towardsthe left side and the right side, so that the charging pile is gradually clamped; therefore, the effects of convenient installation, suitability for mobile electronic equipment of various sizes, stable charging and high charging efficiency are achieved.

The invention provides an anti-fog beautifying lamp mirror. The anti-fog beautifying lamp mirror comprises a body, a wireless charging base and a fixing base. The body is provided with a first magnetic component and a second magnetic component. The wireless charging base is provided with a third magnetic component. The first magnetic component and the third magnetic component are attracted so thatthe wireless charging base can be installed on the body; the fixing base is provided with a fourth magnetic component, and the second magnetic component and the fourth magnetic component are attracted so that the body can be installed on the fixing base; the body is provided with a plane mirror, the front face of the plane mirror is coated with an anti-fog coating, and a heating membrane is stuckto the back face of the plane mirror. According to the anti-fog beautifying lamp mirror, various installing modes are supplied, the mirror can be fixed to a wall and can also be taken down to be placed on a dresser for placement and usage, the using angle of the mirror can be regulated, and meanwhile the wireless charging function and the anti-fog function are achieved.

The invention discloses an underground inspection and research dual-purpose unmanned vehicle carrying an unmanned aerial vehicle and a mechanical arm. The unmanned vehicle comprises an unmanned vehicle body, a mechanical arm working group arranged on the unmanned vehicle body through a lifting working platform, and an unmanned aerial vehicle parked in a parking bin on the unmanned vehicle body; the unmanned vehicle body and the unmanned aerial vehicle are provided with underground positioning modules used for acquiring a landing point and achieving remote precise positioning and precise landing; and the mechanical arm working group is connected with the camera module, and a tracking obstacle avoidance module, a communication module, a power supply module, a special gas detection module, an image recognition module and a voice module are carried on the unmanned vehicle body. The unmanned vehicle body is provided with the mechanical arm working group, the mechanical arm working group is provided with the communication module, the power module and a camera module, various movement modes of the vehicle body can be remotely controlled, and the unmanned vehicle has flexibility in facing complex road conditions.

The invention discloses electronic equipment, and belongs to the field of communication equipment. The electronic equipment comprises a shell assembly, and a wireless transceiver module, a coil, a battery and a connecting assembly which are arranged on the shell assembly, wherein the coil is provided with a plurality of contacts, the shell assembly comprises a cover body and a shell, one of the coil and the connecting assembly is fixed on the cover body, the other one is arranged on the shell, and the cover body and the shell are movably connected. Under the condition that the cover body and the shell are in a first relative position, the coil and the connecting assembly are in a first connecting state, the wireless receiving and transmitting module and the coil are insulated, and the battery is electrically connected with the coil to form a charging loop; and under the condition that the cover body and the shell are in a second relative position, the coil and the connecting assembly are in a second connecting state, the battery and the coil are insulated, and the wireless receiving and transmitting module is electrically connected with the coil to form a wireless receiving and transmitting loop.

The invention relates to a charging control method and system of a solar outdoor power supply system and a computer readable storage medium, and belongs to the technical field of solar energy storage, and the charging control method comprises the steps: obtaining the to-be-charged amount of to-be-charged equipment, the current residual electric quantity of a solar outdoor power supply, and the wireless charging conversion rate; calculating the actual output electric quantity of the solar outdoor power supply according to the product of the current residual electric quantity of the solar outdoor power supply and the wireless charging conversion rate; whether the actual output electric quantity exceeds the to-be-charged electric quantity or not is judged, if yes, a wireless charging strategy is generated, and the wireless charging strategy is to wirelessly charge the to-be-charged equipment; and if not, a wired charging strategy is generated, and the wired charging strategy is to carry out wired charging on the to-be-charged equipment. According to the invention, a better charging mode can be intelligently matched for a user according to the actual conditions of the outdoor power supply system and the to-be-charged equipment, and the effect of improving the user experience is achieved.

The invention discloses a portable wireless charging film with a protective circuit. The portable wireless charging film with the protective circuit comprises a receiving end circuit, a plastic film, a connecting circuit and a charging connector, wherein the receiving end circuit is fixedly arranged above the plastic film; a flat protective shell is arranged outside the receiving end circuit; the receiving end circuit and the charging connector are connected through the connecting circuit; the receiving end circuit comprises an induction coil L3, a bridge rectifier circuit D4, a capacitor C6, a capacitor C5, an LM317 integrated chip, a capacitor C7, a diode D3, a diode D5, a resistor R8, a sliding rheostat R9, a capacitor C8, a resistor R10, a power supply BT1, a triode Q4, a voltage stabilizing diode D7 and a diode D6. By virtue of a simple structure and an integrated circuit, the portable wireless charging film with the protective circuit endows an ordinary equipment battery with a wireless charging function, so that wireless charging of ordinary equipment can also be achieved, and disorder caused when the ordinary equipment is charged is avoided.

The invention discloses a high-capacity energy storage power supply with a wireless charging function, which comprises a protection box body and an energy storage power supply body, the energy storage power supply body is located in an inner cavity of the protection box body, and a placement plate is arranged at the bottom of the energy storage power supply body. The end cover, the handle, the placing plate, the limiting hole, the limiting rod, the energy storage power supply body and the limiting mechanism are matched for use, so that the end cover is opened; then the end cover is placed on one side, the handle is pulled, and the handle drives the placing plate to move upwards; the placing plate slides on the surface of the limiting rod through the limiting hole and drives the energy storage power supply body to move upwards until the plugging port and the control panel on the left side of the energy storage power supply body are exposed; and then the handle is fixed through the limiting mechanism. The problems that an existing large-capacity energy storage power source is inconvenient to transport and move once the size is too large, the environment of an outdoor place cannot be guaranteed, damage is caused once the large-capacity energy storage power source makes contact with water, and collision is likely to happen are solved.

The invention relates to the technical field of mobile phone lithium battery wireless charging, and discloses an assembling mechanism of lithium battery in a mobile phone with a wireless charging function, the mechanism comprises a desktop, a round hole I is formed in the upper end of the desktop, a charging pile is movably inserted into the round hole I, a round hole II is formed in the upper end of the charging pile, and a sliding rail is arranged in the charging pile; a sliding block is movably inserted into the sliding rail, a conical hole is formed in the sliding block, and a circular truncated cone block is movably inserted into the conical hole. The charging pile is inserted into the round hole I, then a fixing block is rotated, the fixing block drives a top plate to rotate, the top plate drives a pipeline to rotate, the pipeline pushes the circular truncated cone block to move downwards along a thread of a fourth round hole under the rotating acting force, the circular truncated cone block abuts against a sliding block through the inclined side face to move towards the left side and the right side, and the charging pile is gradually clamped; therefore, the effects of convenient installation, suitability for mobile electronic equipment of various sizes, stable charging and high charging efficiency are achieved.

The invention discloses a dining table, an APP based remote control system and a hotel dining service method. The method comprises the following steps: S1, recognizing out various dishes in accordancewith image recognition data, and setting different heating control mechanisms for the different dishes, including setting a temperature upper limiting value and a temperature lower limiting value; and S2, controlling on / off of a heating film power supply by a control system in accordance with the set temperature upper limiting value and the set temperature lower limiting value, so that the temperature of the dishes can be kept within a preset temperature range. According to the dining table, the remote control system and the hotel dining service method provided by the invention, manufacturingcost is reduced, user's using cost is reduced, power consumption is reduced and more uniform heating is guaranteed; the dining table has an image recognition function, a wireless charging function, aremote control function and the like; and the dining table can be heated more precisely, so that the quality of meal service is improved and catering service quality is improved.