80results about How to "Avoid poor contact," patented technology

The invention discloses an environment perception device and an information acquisition method applicable to the environment perception device. One embodiment of the environment perception device comprises a camera sensor and a laser radar sensor which are integrated, and a control unit. The control unit is connected with the camera sensor and the laser radar sensor simultaneously. The control unit is used for inputting trigger signals in the camera sensor and the laser radar sensor simultaneously. On the one hand, the camera sensor and the laser radar sensor are designed to be integrated, the problems of poor contact, noise triggering and the like easily caused in the high- vibration high-interference vehicle environment are avoided, the camera sensor and the laser radar sensor are accurately simultaneously triggered, so that high quality data fusion is obtained, and further the environment perception accuracy is improved; on the other hand, the camera sensor and the laser radar sensor are guaranteed to have the consistent overlapped field of vision.

The invention relates to a method for controlling an elevator by adopting a permanent magnet synchronous motor. In the starting stage of the elevator, the method comprises the following steps of: (a) after receiving a feedback signal of closing a main contactor, outputting a detecting current to the motor; (b) detecting a feedback current of the motor, if the feedback current is greater than or equal to a given threshold, executing step (c), otherwise, executing step (d); (c) restoring the current output to the motor to a normal starting state, and opening an internal contracting brake; and (d) alarming and stopping the output of the internal contracting brake. The invention also provides a corresponding system for controlling the elevator by adopting the permanent magnet synchronous motor. The invention can avoid the elevator from generating vehicle slipping caused by the failure of the main contactor or poor contact of contacts, thus improving the safety of the elevator. In addition, the invention can eliminate sound generated due to sudden changes of the current in the parking process of the elevator.

The invention discloses a brush adjusting device and method. The brush adjusting device comprises a bottom plate, wherein two side plates are slidably mounted on the top of the bottom plate; the adjacent sides of the two side plates are provided with sliding slots; slide blocks are slidably mounted in the two sliding slots; the same mounting plate is slidably mounted on the adjacent sides of the two slide blocks, and is provided with a mounting hole; a sleeve is movably mounted in the mounting hole; one end of a spring is fixedly mounted in the sleeve; a brush is fixedly mounted on the other end of the spring; two connecting blocks are fixedly mounted on the bottom of the mounting plate; and the same connecting plate is fixedly mounted on the bottoms of the two connecting blocks. The brushadjusting device facilitates the adjustment of the tightness of the spring, avoids a phenomenon of poor contact of the brush, can remind a user when the spring reaches a limit, can adapt to differentsizes of brushes by adjusting the distance between the two side plates, and can easily remove and replace the brush.

The invention discloses a socket convenient for plugging and pulling, which comprises a plug and a socket. The plug and the socket are square boxes. The inner wall of the plug is welded with a first spring, and the first spring is welded with a retainer. A circular slot is arranged in the end face of one side of the retainer near the socket. A through hole is arranged in one side of the plug nearthe socket. The plug includes two conductive sheets. The inner wall of one side of the socket near the plug is welded with two reeds. One side of the socket near the plug is connected in a sliding manner with a guide rod in a side wall penetrating manner. The advantage is that electromagnetic coils generate opposite magnetic fields to push second permanent magnets to move, hydraulic oil pushes pistons to squeeze the conductive sheets, and the conductive sheets and the reeds are closely jointed, so that poor contact caused by the separation of the conductive sheets from the reeds or the dangerous situation caused by the direct separation of the plug from the socket is prevented.

The invention belongs to the field of hospital delivery windows, and particularly relates to a delivery window achieving mechanical interlocking. The delivery window comprises a cabinet, and singly-opened doors are hinged to the front face and the back face of the cabinet; the rotating central lines of the two singly-opened doors are located on the same side, the inner side face of the cabinet is provided with a U-shaped groove, and the two groove walls of the U-shaped groove are rotatably connected with first connecting rods and second connecting rods; the two ends of each first connecting rod are the press tongue end and the first hinge end, and each first fixing shaft is sleeved with a torsion spring; the two ends of each second connecting rod are the second hinge end and the latch hook end, second fixing shafts are located between the latch hook ends and the second hinge ends, and the second hinge ends are hinged to the first hinge ends; each singly-opened door is provided with a spring bolt and a lock opening groove used for being connected with the latch hook ends in a clamped mode. The delivery window has the advantages that a mechanical interlocking mechanism is completely adopted, no electric interlocking device is arranged, the reliability is high, the delivery window cannot be affected by the temperature and the environment, interlocking failure of the two doors cannot be caused, mechanical delivery is flexible, and the using stability is good; the structure is simple, the cost is reduced, and the delivery window does not need to be driven by a power supply.

The invention relates to a battery voltage automatic test screening device and a method thereof. The device provided by the invention comprises a transfer station, a placement station and a test screening mechanism. The test screening mechanism contains a bracing frame which is arranged at one side of the transfer station. The placement station is disposed at the other side of the transfer station, corresponding to the bracing frame. A meter pen rack is arranged on the bracing frame vertical to the horizontal platform of the transfer station. Detection signals of multiple positive and negative meter pen joints are sent through input ends of a central processing unit into the central processing unit for calculation. A second push-pull mechanism is disposed on the bracing frame parallally above horizontal platform of the transfer station. A third push-pull mechanism is arranged on the bracing frame at the corresponding side of a feeding end of the transfer station. An output control end of the central processing unit controls each push-pull mechanism. The battery voltage automatic test screening device provided by the invention has a simple structure and is convenient to operate. By the adoption of the device, labor intensity of workers is reduced, voltage measuring accuracy is high, production efficiency is raised effectively, and production cost is minimized.

The invention discloses a10kV indoor metal armoring draw out switchgear check trolley, which comprises a chassis, wherein the chassis is provided with a frame, the frame is provided with an observation window, and the back side of the frame is provided with a mimic-disconnecting switch; the mimic-disconnecting switch is provided with a contact arm; the end of the contact are is provided with a contact, and the contact arm is internally provided with a measuring rod; the contact is internally provided with an insulating baffle plate; one end of the measuring rod is fixedly connected with the insulating baffle plate; the insulating baffle plate can move in the contact; when the insulating baffle plate moves in the contact, the other end of the measuring rod can extend out of the panel of the trolley, and the length of the measuring rod extending out of the trolley is the same as the distance of the insulating baffle plate moving in the contact. With the invention, the opening and closing condition of the valve can be directly observed, and the condition of whether the primary contact is normally inserted to contact or not can be correctly and visually judged, thus preventing the short-circuit accident caused by the non-fully opening of the valve and the severe heating accident caused by poor contact of the contact during the normal operation.

The invention discloses a broken yarn detecting circuit for a yarn feeder, wherein the yarn feeder comprises a front broken yarn detector and a rear broken yarn detector. The rear broken yarn detectorcomprises a rear broken yarn detecting circuit and a non-contact inductive switch which is connected in series in the rear broken yarn detecting circuit and is used for sensing the change of the working condition of the yarn. The broken yarn detecting circuit is characterized in that the rear broken yarn detecting circuit comprises a first rectifier bridge, a sampling circuit, an isolating circuit and a signal driving circuit, wherein, the sampling circuit is for collecting a broken yarn signal and is connected with the non-contact inductive switch in series, the isolating circuit is used forisolating an interference signal and the signal driving circuit is used for feeding back the broken yarn signal to the yarn feeder host. Compared with the prior art, the non-contact inductive switchis installed on the broken yarn detector in the invention, and the defect of the poor contact of a traditional touch switch after a long-time use is avoided. In addition, the isolating circuit is increased, thereby implementing the secondary isolation to the interference signal and ensuring the working reliability of the broken yarn detector.

The invention discloses a socket and plug assembly. The socket and plug assembly includes a socket body and a plug body, wherein the socket body includes a casing having a chamber inside and an opening at an upper end, a cover plate is fixed to an upper end of the casing, a pair of conductive seats are fixed on an inner bottom of the casing, the cover plate is provided with a jack allowing one ofconductive sheets on the plug body to pass through to insert the conductive sheet into the conductive seat, a power cord is placed on a side wall of the casing, the power cord is fixed to the casing,each of the conductive seats is equipped with a clamping member used for pressing two contact pieces on the corresponding conductive seat inwardly to press the contact piece against the conductive sheet on the plug body, each clamping member has a pi-shaped structure, and two clamping arms of each clamping member respectively clamp on an outer wall of one of the contact pieces on the correspondingconductive seat. The socket and plug assembly is advantaged in that reliability of plugging of the conductive sheets on the plug body and the conductive seats in the socket body can be improved, thatis, a phenomenon of poor contact between the conductive sheets and the conductive seats can be avoided.

The invention discloses an electroplating cathode conductive device. The device comprises an electric brush, a connecting device and a pressing device, wherein the pressing device is fixedly arranged on electroplating equipment; and one end of the connecting device is fixedly connected with the electric brush, and the other end of the connecting device is fixedly connected with the pressing device. The conductive device comprises the pressing device, one end of the pressing device is fixedly arranged on the electroplating equipment, and the other end of the pressing device is fixedly connected with the connecting device; during operation, the pressing device presses the electric brush which is connected to one end of the connecting device on a rotating shaft of a cathode so as to avoid poor contact between the rotating shaft and the electric brush, make a coating uniform and improve the bonding force of the coating; and therefore, the quality of a printing roller is improved. In addition, the electroplating cathode conductive device has the advantages of simple structure and low cost.

The invention discloses a plug contact state detecting device for automatic charging equipment. The plug contact state detecting device comprises a charging pile end MCU, a relay I, a power source I,a power source II, a proximity switch, a voltage detecting circuit I, and a charging pile end electrode. A robot end assembly includes a robot end MCU, a relay II, a battery, a current detecting circuit, a voltage detecting circuit II, and a robot end electrode. The charging pile end MCU is electrically connected with the proximity switch, the voltage detecting circuit I and the coil of the relayI. The power source I is electrically connected with the normally closed contact of and relay I. The power supply II is electrically connected with the normally open contact of relay I. A charging pile end positive electrode is electrically connected with the moving contact of the relay I and the voltage detecting circuit. The robot end MCU is connected with the current detecting circuit, the voltage detecting circuit II and the coil of the relay II. The voltage detecting circuit II is electrically connected to the normally closed contact of the relay II. The plug contact state detecting device uses a charging electrode as a communication medium to reliably determine sufficient contact of the charging electrode.

The invention discloses a high-voltage energy saving device, comprising a bottom shell and a box body, wherein the top of the bottom shell is fixedly connected with the bottom of the box body througha connecting shell, a high-voltage host is fixedly connected in the box body, a box door is hinged on a front face of the box body through a hinge, fixing shells are fixedly connected to left and right sides in the box body, slide blocks are slidably connected in the fixing shells through rolling balls, a connecting strip is fixedly connected to one side of each slide block, and the invention relates to the technical field of high voltage. The high-voltage energy saving device can drive the slide blocks to slide on the inner surfaces of the fixing shells through the cooperation among the box body, a first rotating rod and a second rotating rod, so that when the box door is opened, a first switch can be turned on, thereby turning on an illuminating lamp, and when the box door is closed, theilluminating lamp can be conveniently turned off, the high-voltage energy saving device is safe and convenient to be used and can prevent a worker from forgetting to turn off the illuminating lamp when leaving, thus improving the intelligence degree of the device, and the high-voltage energy saving device is relatively energy-saving to be used.

The invention relates to a self-service equipment, in particular to an outgoing control module used for the self-service equipment. The control module comprises an in-place detecting mechanism used for controlling the rotation of a motor and a lug boss which is driven by the motor to complete outgoing. The control model is characterized in that the in-place detecting mechanism is a light path detecting mechanism and at least a light-through hole is arranged on the lug boss. The control module has the advantages that photoelectric opposite tubes are adopted and the opposite-radiating infrared ray in-place detecting mechanism is arranged to lead the outgoing and stopping to be more accurate and stable, avoiding the failure caused by multiple outgoing and the unwanted loss and avoiding the use of mechanical contacts to overcome the problems of using micro-switch that the contact has a short service life; the contact is poor and the contact can be oxidized so as to reduce mechanical failures.

The invention discloses an intelligent electric meter based on Internet of Things. The intelligent electric meter comprises an electric meter body, an inner cavity is arranged at the lower part of the front surface of the electric meter body, and a binding mechanism is arranged in the inner cavity. According to the intelligent electric meter based on the Internet of Things, two clamping plates slide inwards and clamp and fix an external connecting wire, at the moment, a second gear and a gear block are clamped again, rotation of a round rod is limited, the external connecting wire is prevented from being accidentally separated from a wiring end during use, the connection stability is improved, poor contact is avoided, and the service life of the electric meter is prolonged. When a second rack is engaged or separated, a buckling cover can be rapidly opened and closed, the convenience of opening and closing the buckling cover is improved, the convenience of wiring or wire removing is improved, the difficulty of subsequent overhaul and maintenance is reduced, the practicability is better, when a clamping block is embedded into the clamping groove, an inner frame is fixedly connected into an outer frame, the clamping block can be driven to be separated from the clamping groove by pulling the vertical rod, and the outer frame and the inner frame can be slidably separated. The electric meter body can be quickly disassembled and assembled, the installation efficiency is improved, and the whole electric meter body can be conveniently disassembled, overhauled and maintained.

The invention discloses a conductive contact pole of an electronic cigarette. The conductive contact pole comprises a columnar sliding body, which is made from a conductor material, and an insulating base, wherein a disc-shaped electric contact point is arranged at the top of the columnar sliding body; and a radial limiting column body is arranged at the lower part of the disc-shaped electric contact point. The base is a cavity barrel-shaped body which is provided with a bottom limiting hole; the limiting hole is matched with the radial limiting column body of the columnar sliding body, so that radial limiting is achieved; and the columnar sliding body, instead of radial rotation, is capable of doing axial sliding in the limiting hole of the base. A columnar connecting part is arranged at the other end of the columnar sliding body; a fastening ring is arranged on the columnar connecting part; and a seal ring and a reset elastic body are arranged between the columnar sliding body and the base.

The invention provides a magnetic suction USB plug and a magnetic suction USB connector, and relates to the field of USB plugs. The magnetic suction USB plug comprises a first plug and a first data line, wherein the first plug is connected with a USB interface of a computer or a charger, the first data line is connected with the first plug, the first plug comprises a USB male plug and a first connection part, the USB male plug is plugged into the USB interface of the computer or the charger, the first connection part is integrated with the USB male plug and has magnetism, the first data line comprises a second connection part and a wire, the second connection part has magnetism and is magnetically attracted to the first connection part, and the wire is connected between the second connection part and any electronic equipment employing the USB plug. The magnetic suction USB connector comprises the first plug and an adaptor, wherein the first plug is connected with the USB interface of the computer or the charger, the adaptor is connected with the first plug and comprises a third connection part and a USB female interface, the third connection part has magnetism and is magnetically attracted to the first connection part, and the USB female interface is integrated with the third connection part and is used for a USB plug of an external data line to plug. By the magnetic suction USB plug and the magnetic suction USB connector, a user can be convenient to use the USB plug to connect or disconnect with the computer or the charger.

The invention belongs to the technical field of battery replacement, in particular to a spare battery replacement structure of an educational robot, the structure includes a battery placing bin, a cavity is arranged in the battery placing bin, a mounting column is arranged in the cavity, the two ends of the mounting column are respectively fixedly connected with the top end side wall in the cavityand a bottom end side wall in the cavity, a mounting hole is arranged in the mounting column, the mounting hole is provided with a sliding block, two sliding grooves are arranged on the inner side wall of the mounting hole, two ends of the sliding block respectively extend into the two sliding grooves, two sliding holes are arranged in the sliding block, sliding bars are arranged in the sliding holes, and the two ends of the sliding bars respectively penetrate the sliding holes and are fixedly connected with opposite side walls in the sliding grooves. According to the spare battery replacement structure of the educational robot, through the arrangement of a plurality of adjustment mechanisms, the batteries in the robot can be automatically replaced, thus improving the teaching efficiencyand effects, the operation is simple and convenient, and thus the structure has certain popularization value.

The invention relates to the technical field of temperature controllers, and particularly relates to a multifunctional ceramic dual temperature controller, which comprises a ceramic shell. The upper end opening of the ceramic shell is sleeved with an aluminum cover; the upper end opening of the ceramic shell is internally provided with a guiding support; two groups of broken circuit switches are arranged parallelly inside the ceramic shell below the guiding support; two action rods capable of moving vertically are arranged on the guiding support; lower ends of the two action rods are in linkage with the broken circuit switches respectively; two disc bimetallic sheets are fixed between the guiding support and the aluminum cover; and upper ends of the two action rods are in abutting linkage with the corresponding bimetallic sheets respectively. According to the multifunctional ceramic dual temperature controller, the structure is reasonable, a PTC heating body is adopted to maintain power-off protection in the case of abnormal functions, poor contact generated as conductive metal is likely to oxidize can be avoided, serial connection and parallel connection demand configuration and multilevel control protection can be realized through integrated multilevel configuration, problems of poor safety performance, short service life and small application range of the existing temperature controller are overcome, and the application cost of an electric appliance is reduced.

The invention discloses a relay mounting structure capable of preventing poor contact, and relates to the field of relays. The relay mounting structure comprises a relay body and a mounting seat, the relay body is composed of a ceramic base, an electronic component casing connected to the ceramic base and a protective cover covering the electronic component casing. Lead pins arranged on the ceramic base are correspondingly inserted into lead pin insertion holes formed in the mounting seat. The relay mounting structure has the advantages that the lead pins arranged at the bottom of the relay body are correspondingly inserted into the lead pin insertion holes formed in the mounting seat, each lead pin is integrally formed by a first lead pin part and a second lead pin part which are different in diameter, the diameter of each second lead pin part is smaller than that of each lead pin insertion hole, so that the lead pins can be conveniently inserted into the lead pin insertion holes; when a first lead pin part is inserted into the corresponding lead pin insertion hole, elastic deformation occurs, the lead pin can be completely inserted into the lead pin insertion hole, the first lead pin part has elastic force, it can be guaranteed that the first lead pin part is tightly attached to the inner wall of the lead pin insertion hole, connection stability is guaranteed, and the condition of poor contact is avoided.

The invention discloses a universal serial bus connecting device, which comprises a basal plate and a terminal element, wherein, the basal plate is provided with a body part and a connecting part. A control circuit is provided on the body part of the basal plate and a plurality of signal ends which can couple with the control circuit are provided on the connecting part. In addition, the terminal element can be used for linking with the connecting part of the basal plate, and is provided a lead layer so as to connect with the signal terminal on the basal plate. The connecting device of the invention is light and thin in volume, can be applicable to a plurality of universal serial bus connecting ports, and can avoid problem of bad contact caused by poor elasticity of the shrapnel in the universal serial bus connecting port.

Provided is a solar energy non-battery wireless mouse based on super-capacitor energy storage, which is characterized in that a low power consumption wireless mouse power device comprises a solar cell panel, a super capacitor, an isolating anti-reverse connection diode, a schottky diode, and a DC-DC conversion module. The solar cell panel is connected with the left and right sides of a battery wireless mouse, and through the schottky diode, the output line of the solar cell panel along with a super capacitor installed inside the panel forms a device for collecting and storing light energy inside a room. Through the isolating anti-reverse connection diode, the electric energy stored in the super capacitor together with the DC-DC conversion module constitutes a voltage reduction and stabilizing device for direct current. And the low power consumption wireless mouse power device comprises the device for collecting and storing lighting energy and voltage reduction and stabilizing device, while the solar energy non-battery wireless mouse based on super-capacitor energy storage comprises the low power consumption wireless mouse power device and an ordinary ultra-low voltage low power consumption wireless mouse. The batteries in the wireless mouse do not need changing anymore, the phenomena like poor contact, battery leakage and the like do not appear, meanwhile, a switch design is alternative.

The invention discloses remote information interaction communication equipment, comprising a wireless communication module, a processor and a shell, wherein a processing layer is arranged inside the shell, a storage battery is installed inside the processing layer, a charging interface is installed on the surface of the shell on one side of the storage battery, the output end of the charging interface is electrically connected to the input end of the storage battery through a wire, a wireless communication module is installed inside the processing layer on one side of the storage battery, a processor is installed inside the processing layer on one side of the wireless communication module, the output end of the processor is electrically connected to the input end of the wireless communication module through the wire, and a memory is installed inside the processing layer on one side of the processor. According to the scheme of the invention, a series of structure are arranged, so that the equipment has the advantages of convenient carrying and use, high information interaction efficiency, high protection performance and the like in the process of remote information interaction.

The invention discloses a convenient-to-mount weak current cable connector, which includes a connector housing and a circuit board. The circuit board is disposed at the bottom of the inner cavity of the connector housing; a sleeve is fixedly connected to one side of the circuit board; a chip is movably connected in the sleeve; the front side and the rear side of one side of the connector housing are provided with connecting slots; the top of the inner surface of the connecting slot is rotarily connected with clamping pliers; the left side and the right side of the clamping pliers are fixedly connected with arc blocks through first springs; and the outer surface of the arc block is fixedly connected with the inner surface of the connecting slot. According to the convenient-to-mount weak current cable connector which relates to the technical field of cable connectors, the match between a sliding sleeve and a rotating rod provides power for movement of two sliding blocks on a lateral sliding track, the connecting rod is then matched to drive the clamping pliers to clamp the cable, the cable mounting firmness is enhanced, the operation is simple, the use is convenient, and the work efficiency can be greatly improved.

The invention relates to a manufacturing method of a circuit board. The method comprises the following steps of providing a bearing plate, and forming a first circuit layer on the surface of the bearing plate; arranging an adhesive layer in the area, exposed out of the first circuit layer, of the surface of the bearing plate, wherein the thickness of the adhesive layer is less than that of the first circuit layer; arranging wiring layers on the surfaces of the first circuit layer and the adhesive layer, wherein each wiring layer includes at least one dielectric layer and at least one second circuit layer which are arranged alternately, and the dielectric layer on the outermost side covers the first circuit layer and fills a gap, higher than the adhesive layer, of the first circuit layer; enabling the first circuit layer to be partially embedded into the dielectric layer on the outermost side; and removing the bearing plate and removing the adhesive layer so that a part of the first circuit layer convexly extends out of the surface of the dielectric layer on the outermost side. The invention further provides the circuit board.

The invention discloses an automatic tool setting device which comprises a retractor device, a triggering sensing device and a tool controller. The triggering sensing device is arranged on the retractor device and moves in the stretching direction of the retractor device under the acting force of the retractor device; the tool controller is connected with the triggering sensing device and collects data fed back by the triggering sensing device to modify the position of a numerical control tool according to the data. By means of the automatic tool setting device, the triggering sensing device is in contact with the surfaces of machined materials by controlling the retractor device to determine the distance between the triggering sensing device and the surfaces of the machined materials, then determined distance parameters are fed back to the tool controller to enable the tool controller to conduct parameter modification on the numerical control tool according to the distance parameters, positional deviations of the numerical control tool are modified, the automatic tool setting function of the numerical control tool is further achieved, the distance between the tool and the machined materials is accordingly and effectively guaranteed, and the machining efficiency is improved.

The invention relates to a block chain technology-based anti-detachment wireless code-sweeping gun, a fix mechanism is also arranged in the main body, the fix mechanism comprises a lifting assembly and a limiting assembly, a heat dissipation mechanism is arranged in the base, the heat dissipation mechanism includes a second motor, a driving wheel, a rotating shaft, a bearing base, a driven wheel,a belt and a cooling fan, the anti-detachment wireless code-sweeping gun based on block chain technology uses block chain technology to store data, so that that security level of the data is high, andby means of the fix mechanism, a main body and a base can be fixed, thus preventing the main body from disengaging from the base, As that heat dissipation mechanism is adopt, the heat dissipation temperature of the base can be reduced, the damage to the base cause by the high temperature and the fire hidden danger caused by the high temperature can be avoided, the service life of the base is prolonged, and the practicability and reliability of the wireless code sweeping gun are improved. The invention avoids the bad contact between the main body and the base caused by the external force, thefalling damage and the like, and guarantees the charging effect.

The present invention relates to a pin breakage prevention type multi-contact socket, and more specifically, to a pin breakage prevention type multi-contact socket which reduces a distance between a test device and probe pins of the socket for circuit connection in contact with terminals of an object to be tested and prevents a contact defect of the terminals or prevents a plate-shaped probe frombeing bent or damaged by a contact with the terminals. Further, the pin breakage prevention type multi-contact socket includes: a plurality of probe pins having a plurality of contact surfaces to be in multi-contact with the terminals; a housing having the probe pins vertically disposed therein; and mold portions disposed between the probe pins protruding to terminal insertion grooves, to which the terminals of the housing are coupled, to prevent damage to the probe pins.

The invention provides an air conditioner control method and system based on NFC. The air conditioner control system comprises an air conditioner and a control device operated by a user to control operation of the air conditioner, the air conditioner is provided with an NFC radio frequency module and an MCU control module, and the control device is provided with an NFC label module used corresponding to the NFC radio frequency module; the NFC label module responds to user selection operation to determine a first control instruction used for controlling the air conditioner to enter a target running state; when the control device is close to the air conditioner, the NFC radio frequency module obtains the first control instruction through an active mode and sends the first control instruction to the MCU control module through serial port communication; and the MCU control module analyzes the first control instruction and instructs an internal control module of the air conditioner to execute the instruction content of the first control instruction obtained through analysis according to protocol agreement, so that the air conditioner enters a target running state. Therefore, the operation state of the air conditioner is controlled in a more flexible and convenient mode, and the control accuracy and efficiency of the air conditioner are improved.