48results about How to "Accurate open" patented technology

The invention relates to a shift register and a liquid crystal display device with the same. The liquid crystal display device comprises a liquid crystal panel and at least one scan drive circuit. Each scan drive circuit comprises a shift register. Each shift register comprises a plurality of shift register units. Each shift register unit receives two clock signals from an external circuit. Two adjacent shift register units receive opposing clock signals, and the front shift register unit outputs a signal serving a signal to be input into the rear shift register unit. Each shift register unit comprises a start circuit, a signal input circuit, a signal output circuit, and a control circuit. The signals output by the shift registers are uniform in low level. The liquid crystal display device with the shift register is more vivid and accurate in picture display.

The invention provides a surge protection relief valve, which comprises a main valve and a pilot valve, wherein the pilot valve is positioned above the main valve; an outlet valve seat and an inlet valve seat are fixed in a cavity of a pilot valve body at an interval; and a valve shaft is connected with a pilot valve spring arranged on one side of the pilot valve. A central cavity of the pilot valve is communicated with an air chamber in the main valve by an air chamber pipe, while a rear cavity is communicated with the outlet side of the main valve by an outlet pipe. An inner core of a main valve body has an olive shape; a fixed sleeve is fixed at an inlet flange of the main valve body; and a valve seat of the main valve is pressed together with the fixed sleeve. A guide sleeve is fixed on an inner hole on the outlet side of the main valve body; the tail part of a fusiform valve clack is inserted into the guide sleeve; and the conical sealing surface of the front part of the valve clack can be sealed with the valve seat. The inner cavity of the valve clack is combined with the inner core of the main valve body to form the air chamber in the main valve. The surge protection relief valve induces the pressure of a pipeline by the mechanical pilot valve to control the movement of the valve clack of the main valve so as to realize accurate opening, fast relief and the elimination of pressure peaks during the occurrence of surges in the pipeline and play a role in safely and reliably protecting pipeline equipment.

The invention discloses a detachable floater type water valve device. The floater type water valve device comprises a valve part and a floater part, and the valve part is separated from the floater part; the valve part is a check valve, and comprises a valve seat and a spool structure running through the center of the valve seat, and the lower end of the spool structure is provided with a cambered surface; the floater part comprises a pivotally arranged lever type floater structure, which comprises a floater at one side of a pivot and an abutting part at the other side of the pivot, and the end part of the abutting part is provided with a cambered surface, which correspondingly abuts against the cambered surface of the spool structure; and the floater can be rotated with the pivot as the axis according to the change of water level to drive the abutting part to slide to push the cambered surface of the spool structure, so that the valve part can be opened and closed. The detachable floater type water valve device utilizes the floater and the leverage to open and close the valve.

The invention relates to an anti-icing and deicing device and method for wings and emages of a turbo-prop aircraft, the device comprises a system close loop, a TKS fluid reservoir heating loop, an anti-icing and deicing heat transfer loop heat pipe, a distributed loop heat pipe and a TKS deicing mechanism, wherein the system close loop, the TKS fluid reservoir heating loop and a heat transfer loopshare a set of heat transfer evaporator (1), in an anti-icing state, the TKS fluid reservoir heating loop, the anti-icing and deicing heat transfer loop heat pipe and the distributed loop heat pipe work; in a deicing state, the TKS deicing mechanism works. Compared with the prior art, the TKS system deicing efficiency is improved greatly, the icing phenomena of the wings and the emages are reduced, the flight stability of the aircraft is ensured, and the system safety is reliable; waste heat of an exhaust pipe is taken as a heat source, and the energy comprehensive utilization ratio of a single turbo-prop aircraft is improved.

The present invention provides a method and system for reducing the number of times of parking of motor vehicles at a crossing through adoption of a plane perception technology. The number of the motor vehicles entering at the upstream on each direction at the crossing, the current position of each motor vehicle, the instantaneous speed and the time required from the current position to the stop line can be accurately detected in real time through a plane perception detector, and the phase deviation of a traffic light can be regulated in real time according to the real-time flow changing of two inlets of a subarea trunk road. Besides, according to the scheme of the invention, a monitoring device is not needed, the time for reaching the arrival stop line can be accurately obtained in the different speed of different motor vehicles and different weather conditions. Therefore, according to the scheme of the invention, the method and system for reducing the number of times of parking of motor vehicles at the crossing through adoption of the plane perception technology can accurately obtain the accurate time of each motor vehicle from an upstream crossing outlet to the stop line so as to accurately start traffic signals for the first vehicle of the motor vehicle queue for reaching the stop line and ensure that the number of times of parking is reduced when the motor vehicles pass through the crossing.

The invention relates to the technical field of an agricultural cultivation cavitation device, in particular to a forcible-arrangement forcible-starting corn straight-inserting hole-sowing machine. The forcible-arrangement forcible-starting corn straight-inserting hole-sowing machine comprises a machine frame and is characterized in that the front part of the lower end of the outer part of the machine frame is connected with a front wheel shaft through a bearing with a base; a differential is arranged at the middle position of the front wheel shaft; a power output shaft of a motor is connectedwith the differential through a chain wheel mechanism; an electromagnetic clutch is arranged on the upper side of the middle end of the internal part of the machine frame; the electromagnetic clutchis connected with the power output shaft of the motor through the chain wheel mechanism; the electromagnetic clutch is connected with power input shafts of a horizontal speed compensation mechanism, aconjugated cam mechanism and a seed arrangement device through the chain wheel mechanism; a straight-inserting seed arrangement device is arranged below the horizontal speed compensation mechanism; the back end of the outer part of the machine frame is vertically connected with a steering shaft through the bearing with the base; the lower end of the steering shaft is connected with back wheels through two connecting rods; and the middle part of the connecting rods is connected with the upper end of the steering shaft through an electric push-pull rod. The forcible-arrangement forcible-starting corn straight-inserting hole-sowing machine effectively relieves the problems that under-membrane sowing and sowing qualification rate are greatly influenced by the ground.

The invention relates to an automatic opening mechanism of an unmanned aerial vehicle parachute cabin cover. The automatic opening mechanism comprises a mounting frame, the parachute cabin cover, a pressure spring, a blocking piece, an extractor parachute, a parachute, a magnet iron sheet and an electromagnetic lock assembly. The electromagnetic lock assembly comprises a shell, a control circuit board, a silicon steel sheet and a coil; the electromagnetic lock assembly is located in a space formed by the mounting frame and the parachute cabin cover and is fixedly connected with the mounting frame through a shell; the control circuit board, the silicon steel sheet and the coil are fixedly arranged in the shell; the magnet iron sheet is fixed to the parachute cabin cover; a stud is fixedly connected to the mounting frame through a thread, and is sleeved with the pressure spring, and the initial state of the pressure spring is in the compression state. The mechanism has the beneficial effects that unmanned aerial vehicle space is effectively saved, magnetic attraction force generated by an electromagnet can tightly lock the parachute cabin cover, when parachute opening is needed, a flight control computer sends out signals, a power source is cut off, the magnetic attraction force disappears, the pressure spring exerts the effect, and meanwhile, under the air flow effect, the parachute cabin cover can be rapidly and accurately opened.

The invention provides a conical surface soft sealing structure for a safety valve. The conical surface soft sealing structure comprises a boss-shaped valve seat. The top end of the valve seat is embedded into the bottom of a groove-shaped recoil disc. The top end of the valve seat is connected with the bottom of the recoil disc through a lower adjusting ring in a threaded mode. A groove in the recoil disc is filled with a T-shaped sealing block. The lower end of the T-shaped sealing block stretches into the top end of the valve seat. A guide rod is arranged above the recoil disc. The guide rod is connected into the recoil disc in a threaded mode. The guide rod and the recoil disc are fixed to prevent loosening through a locking nut. The guide rod presses the sealing block embedded in the recoil disc. Meanwhile, the recoil disc has the function of a pressing block. The sealing block, the recoil disc, the guide rod and the locking nut form an integrally-moving assembly. A conical surface sealing mode is adopted for the sealing face where the valve seat makes contact with the sealing block. By means of the conical surface soft sealing structure for the safety valve, it is guaranteed that the valve is opened precisely, sealed reliably, discharged stably and capable of returning back to the valve seat at the right moment at the normal temperature ranging from -46 DEG C to 200 DEG C and at the low temperature ranging from -46 DEG C to -200 DEG C.

The invention provides a voice input starting method and device and computer equipment. The method comprises the steps that it is determined that the distance between a user and a terminal is within apreset distance range; an image of the user is shot through a terminal camera; the user head portrait feature in the image is acquired; whether the head portrait feature is located in a preset position in the image or not is judged; and if yes, a voice input function of the terminal is started. According to the voice input starting method, voice interaction is triggered when the specific state ofthe user is recognized, and the user does not need to remember different touch positions of different applications additionally, so that the voice interaction is more natural, and the user experienceis improved.

The invention discloses channel management equipment for left-right ticket checking and passing. The channel management equipment comprises a gate machine comprising ticket checking channels on left and right sides; the gate machine is provided with a first detection unit, a second detection unit, a processing unit and a control unit, wherein the first detection unit is used for detecting ticket checking actions when ticket checking workers check tickets and enter a right-side region of the gate machine; the second detection unit is used for detecting whether the ticket checking workers exist in ticket checking station regions of the left ticket checking channel and the right ticket checking channel or not; the processing unit is used for determining whether the ticket checking workers stand in the right ticket checking channel or not according to detection results of the first detection unit and the second detection unit; and the control unit is used for opening a gate of the right ticket checking channel after the tickets are checked to be qualified and the ticket checking workers stand in the right ticket checking channel. According to the channel management equipment, the gates of the channels where passengers are in can be opened no matter whether the left-side gate machine or the right-side gate machine is used for checking the tickets, so that the ticket checking passing rate is improved, channel congestion is reduced and the passengers conveniently pass. The invention further discloses a left-right ticket checking and passing method.

The invention provides a surge protection relief valve, which comprises a main valve and a pilot valve, wherein the pilot valve is positioned above the main valve; an outlet valve seat and an inlet valve seat are fixed in a cavity of a pilot valve body at an interval; and a valve shaft is connected with a pilot valve spring arranged on one side of the pilot valve. A central cavity of the pilot valve is communicated with an air chamber in the main valve by an air chamber pipe, while a rear cavity is communicated with the outlet side of the main valve by an outlet pipe. An inner core of a main valve body has an olive shape; a fixed sleeve is fixed at an inlet flange of the main valve body; and a valve seat of the main valve is pressed together with the fixed sleeve. A guide sleeve is fixed on an inner hole on the outlet side of the main valve body; the tail part of a fusiform valve clack is inserted into the guide sleeve; and the conical sealing surface of the front part of the valve clack can be sealed with the valve seat. The inner cavity of the valve clack is combined with the inner core of the main valve body to form the air chamber in the main valve. The surge protection reliefvalve induces the pressure of a pipeline by the mechanical pilot valve to control the movement of the valve clack of the main valve so as to realize accurate opening, fast relief and the elimination of pressure peaks during the occurrence of surges in the pipeline and play a role in safely and reliably protecting pipeline equipment.

An intelligent safety helmet based on image recognition comprises a helmet body, an image display system, an intelligent lighting system and a control system, the image display system and the intelligent lighting system are arranged on the helmet body, the control system is arranged in the helmet body, and the image display system and the intelligent lighting system are both connected with the control system. The control system comprises a Raspberry Pi, an acceleration detection module, an arduino and a power supply module, and the Raspberry Pi is connected with the acceleration detection module, the arduino and the power supply module; the image display system comprises a camera, an ultrasonic ranging module, a GPS module and an LCD display screen, the LCD display screen is connected withthe Raspberry Pi through an spi protocol, and therefore the Raspberry Pi processes image data collected by the camera and the ultrasonic ranging module and displays the image data through the LCD display screen.

The invention discloses a water-aerial dual-purpose marine fish school exploration system. The system comprises a power supply module, a main control module, an operation state control module, an anti-thunder module, a track setting module, a data storage module and a fish school detection module, wherein the operation state control module, the anti-thunder module, the track setting module, the data storage module and the fish school detection module are electrically connected with the main control module; the power supply module supplies power to the operation state control module, the anti-thunder module, the track setting module, the data storage module, the fish school detection module and the main control module. The system has a water surface navigation work state and a diving work state, is suitable for thunderstorm and high in safety, and can achieve quick and accurate fixed-point fishing of fish schools.

The invention discloses an elevator door lock assembly, which comprises a door lock body, a lock plate, a locking mechanism, a control mechanism, wherein the locking mechanism comprises an electromagnet, a locking pin and a spring; the locking pin and the lock plate are rotatably connected; the electromagnet is electrically connected with the control mechanism; before a car arrives, the lock plate is clamped and fixed on a catch plate, and an elevator landing door is in a locked state; after the car arrives, a car arrival signal is transmitted to a control system by a leveling inductor of an elevator; a landing call signal and a leveling inductor signal are combined by the control system to accurately output an unlocking signal to the electromagnet of the floor; after the electromagnet is electrified, the locking pin is sucked up; the lock plate is driven by the locking pin to do anticlockwise rotation; a bayonet is separated from the catch plate, and the landing door is opened; when the car leaves, a signal is output to the electromagnet by the control mechanism; the electromagnet is interrupted, the locking pin resets under the effect of gravity of the spring or the locking pin; the lock plate rotates to reset; the bayonet is clamped on the catch plate to realize the linkage of the landing door and the car so as to realize accurate opening and closing on the landing door.

The invention discloses a channel management device for checking tickets left and right for passage. The channel management device comprises a left gate and a right gate forming a ticket checking channel, a processing unit and a control unit. The left gate is provided with a first detection unit used for detecting the ticket checking actions conducted by ticket checking persons from the left side of the ticket checking channel. The right gate is provided with a second detection unit used for detecting the ticket checking actions conducted by the ticket checking persons from the right side of the ticket checking channel. The processing unit is used for confirming whether the ticket checking persons conduct the ticket checking actions or not according to detection results of the first detection unit and the second detection unit. The control unit is used for opening the gates of the ticket checking channel after the ticket checking persons conduct the ticket checking actions and the tickets are checked to be qualified. By the adoption of the channel management device, the gates, where passengers are located, of the channel can be opened no matter whether the tickets are checked through the left gate or the right gate, so that the ticket checking pass rate is increased, the channel congestion is reduced, and passage of the passengers is facilitated. The invention further discloses a left and right ticket checking passage method.

The invention reveals an automatic control system of an auto steering lamp, which is implemented through the steps that the control system acquires left and right wheel speed signals, the acquired left and right wheel speed signals are transmitted to an ECU by an electronic control unit, then the ECU drives left and right lamp relays to control a combination switch to realize the opening and closing of left and right steering lamp sets. The control system can accurately control the steering lamp, and the steering lamp can be opened accurately even by a slightest steering operation; meanwhile,the automatic control system and a manual operating lever can exist together to control the steering lamp, so that the drivers can operate the steering lamp more conveniently.

The invention provides a control method and a control system for displaying a right blind area image of a vehicle, which relate to the vehicle image display control field. Obtain the state of the right blind button and the state of the steering lever; Based on the matching relationship between the vehicle speed and the preset speed value, as well as the state of the right blind area button and thestate of the steering lever. The invention solves the problem that the control method of the right blind area camera in the prior art is single and cannot meet the user's demand for humanized use ofthe vehicle.

The invention provides a container control device, a container control method, and a container. The control device comprises a frequency setting unit used for setting a frequency at which an ultrasonic distance measuring unit sends ultrasonic wave, the ultrasonic distance measuring unit used for sending ultrasonic wave to measure distance according to a first frequency or a second frequency set by the frequency setting unit, and a control unit used for controlling the container according to the distance measurement information of the ultrasonic distance measuring unit. By using the scheme, container lid opening and closing can be controlled more accurately and more flexibly.

The invention discloses a channel management device for left-right ticket-checking passing. The channel management device for left-right ticket-checking passing comprises a gate provided with ticket-checking channels on the left and right sides, wherein the gate is provided with a first detection unit for detecting ticket-checking actions executed by ticket-checking workers on the gate, a second detection unit for detecting whether the ticket-checking workers exist in ticket-checking station zones of the left and right ticket-checking channels or not, a processing unit for determining limb information of the ticket-checking workers according to a detection result of the first detection unit and determining the ticket-checking channels where the ticket-checking workers are located according to the determined limb information of the ticket-checking workers and a detection result of the second detection unit, and a control unit for opening the gates of the channels where the ticket-checking workers are located after ticket checking is passed. The channel management device can open the gates of channels where passengers are located regardless of which the left side gate or the right side gate is used, accordingly improves the ticket-checking passing rate, reduces channel jams and facilitates passing of passengers. The invention further discloses a method for left-right ticket-checking passing.

The invention discloses a fluorescent key, which comprises a key main body (1), and is characterized in that: a fluorescent layer (2) is coated on the outer surface of the key main body (1); and the fluorescent layer (2) is provided with multiple colors. The fluorescent key has a simple structure and an ingenious design, and can emit fluorescence in an environment with poor lighting condition, so users can select an appropriate key to open a lock.

The invention discloses an automotive oil tank door lock, which comprises a lock hole seat arranged on the oil tank door, a lock body arranged on the vehicle body, a bolt which is arranged in a through hole in the lock body and of which the head part extends out of one end part of the lock body, and a spring seat arranged in the other end of the lock body, wherein a boss is arranged on the bolt; a resetting spring is sleeved on the middle part of the bolt, and one end of the resetting spring is tightly pressed against one side of the boss on the bolt; the other end the resetting spring is tightly pressed against the spring seat; the other end of the boss on the bolt is tightly pressed against the end wall of one end of the lock body; one end of an inhaul cable passes through the central hole of the spring seat to be connected with the tail part of the bolt; a guide block is arranged on one side, extending out of the end face of the lock body, of the bolt; and the guide face b of the guide block is jointed with the guide face a of the lock hole seat on the oil tank door. The automotive oil tank door lock has the advantages of ensuring the accurate alignment between the bolt and a lock hole in the lock hole seat and avoiding the phenomenon that the oil tank door is difficult to lock or cannot be locked.

The invention discloses a garage automatic door control system and relates to the technical field of garage automatic control. The system comprises a controller, the controller is electrically connected with an executing mechanism and a ground induction coil arranged between two opposite garage doors, and the controller makes an executing mechanism open the corresponding garage door according to signals of the ground induction coil. The garage automatic door control system solves a technical problem that in the prior art, a stereo garage door is prone to misoperation, the garage automatic doorcontrol system can accurately open the corresponding garage door, and misoperation of the garage door is effectively prevented.

The invention discloses left-right check-in passing channel management equipment which comprises ticket gates, and check-in channels are arranged on the left side and on the right side of each ticket gate. Each ticket gate is provided with a detection unit, a processing unit and a control unit, wherein the detection unit is used for detecting the check-in motion executed by a check-in person on the ticket gate and obtaining the physical information of the check-in person; the processing unit is used for determining the check-in channel where the check-in person is located according to the physical information obtained by the detection unit; and the control unit is used for opening a barrier of the channel where the check-in person is located after check-in is qualified. According to the channel management equipment, the barrier of the channel where the passenger is located can be opened whether the ticket gate on the left side or the ticket gate on the right side is used for check-in, so that the check-in passing rate is increased, channel crowding is relieved, and passing of the passenger is facilitated. The invention further discloses a left-right check-in passing method.

The invention discloses channel management equipment for left-right ticket checking and passing. The channel management equipment comprises a gate machine comprising ticket checking channels on left and right sides; the gate machine is provided with a first detection unit, a second detection unit, a processing unit and a control unit, wherein the first detection unit is used for detecting ticket checking actions when ticket checking workers check tickets and enter a right-side region of the gate machine; the second detection unit is used for detecting whether the ticket checking workers exist in ticket checking station regions of the left ticket checking channel and the right ticket checking channel or not; the processing unit is used for determining whether the ticket checking workers stand in the right ticket checking channel or not according to detection results of the first detection unit and the second detection unit; and the control unit is used for opening a gate of the right ticket checking channel after the tickets are checked to be qualified and the ticket checking workers stand in the right ticket checking channel. According to the channel management equipment, the gates of the channels where passengers are in can be opened no matter whether the left-side gate machine or the right-side gate machine is used for checking the tickets, so that the ticket checking passing rate is improved, channel congestion is reduced and the passengers conveniently pass. The invention further discloses a left-right ticket checking and passing method.

The invention relates to a temperature control tea cup which comprises a cup cover and a cup boy, wherein the cup body comprises a base and an insulating barrel, and a regulating barrel is coaxially arranged outside the insulting barrel in a sleeving manner; an upper seal ring and a lower seal ring at two ends of the regulating barrel are separately mounted in sealing chutes, and the insulating barrel and the regulating barrel encircle a closed circular barrel space; a partition plate parallel to the axis of the regulating barrel is arranged in the circular barrel space; two hollow regulatinginterlayers are arranged in the inner cavity of the insulating barrel, and the two regulating interlayers independently communicate to the two semi-barrel spaces, separately; and barrier strips made from heat insulating materials are separately arranged in the two semi-barrel spaces and the two regulating interlayers. The tea cup is novel in structure, can adjust the temperature of tea water quickly as needed, not only ensure that tea leaves are fully soaked and beneficial substances are fully dissolved out, but also can keep a certain water temperature, and is conveniently carried and drunk for a long time.

The invention discloses a heating base and a cooker utilizing the same. The heating base comprises a base body, a temperature detecting assembly, a bracket and a microswitch, wherein a first accommodating cavity and a second accommodating cavity are formed in the body, the first accommodating cavity is formed above the second accommodating body, and the first accommodating body and the second accommodating body are separated through a partition board; a first hole penetrated by the temperature detecting assembly is formed in a panel; the first accommodating cavity is used for accommodating a heated object; the bracket and the microswitch are arranged in the second accommodating cavity, the temperature detecting assembly is arranged at the upper part of the bracket in an elastically telescopic manner, and the microswitch is arranged at the lower part of the bracket and is turned on when the heated object props against the temperature detecting assembly. The detection structures of the heating base are improved and are combined into a whole, so that the error rate of the detection structures can be effectively reduced, and the detection structures are convenient to mount and replace.

The embodiment of the invention discloses an image scanning method, device, a reader and a computer readable storage medium, wherein the method comprises the following steps: if the to-be-scanned paper is detected through a first sensor array, controlling a stepping motor to drive the to-be-scanned paper in the paper feeding channel of the reader to advance, wherein the direction angle of the to-be-scanned paper into the reader is arbitrary; and if a second sensor array detects that the head of the to-be-scanned paper reaches the upper edge of a CIS scanning array, controlling the CIS scanningarray to enter a scanning state to scan the to-be-scanned paper after the to-be-scanned paper advances for a distance L0; and if the second sensor array detects that the tail of the to-be-scanned paper goes away from the lower edge of the CIS scanning array, controlling the stepping motor to drive the to-be-scanned paper to advance for a distance L4, and then turning off the CIS scanning array. According to the invention, the scanning of the to-be-scanned paper in any direction and angle can be realized.

The invention discloses a deslagging automatic water drainer for a negative-pressure gas pipeline. The deslagging automatic water drainer is large in push-pull force, and comprises an accumulated water sediment barrel and an accumulated water discharge barrel, wherein a counterweight is arranged at the sealed end of the accumulated water discharge barrel, a movable cover plate is arranged at the open end of the accumulated water discharge barrel, and the middle lower part of the accumulated water discharge barrel is hinged and supported through a support; a slag blocking filter plate is vertically arranged in the accumulated water sediment barrel and divides the accumulated water sediment barrel into a slag storage chamber and a water storage chamber, a water inlet pipe and an air passinghose are connected to the upper portion of the slag storage chamber, the air passing hose is connected with the open end of the accumulated water drainage barrel, and a drainage hose is connected between the water storage chamber and the accumulated water drainage barrel; a first air valve is arranged on the air passing hose, a branch pipe is in T connection to the air passing hose, a second air valve is arranged on the branch pipe, and transmission gears are arranged on valve rods of the first air valve and the second air valve; and a push-pull rod is in sliding fit with the barrel wall of the accumulated water sediment barrel, a connecting rod is hinged to the lower end of the push-pull rod, the lower end of the connecting rod is hinged to the accumulated water drainage barrel, and the push-pull rod meshes with transmission gears on the first air valve and the second air valve simultaneously.

The present invention provides a method and system for reducing the number of times of parking of motor vehicles at a crossing through adoption of a plane perception technology. The number of the motor vehicles entering at the upstream on each direction at the crossing, the current position of each motor vehicle, the instantaneous speed and the time required from the current position to the stop line can be accurately detected in real time through a plane perception detector, and the phase deviation of a traffic light can be regulated in real time according to the real-time flow changing of two inlets of a subarea trunk road. Besides, according to the scheme of the invention, a monitoring device is not needed, the time for reaching the arrival stop line can be accurately obtained in the different speed of different motor vehicles and different weather conditions. Therefore, according to the scheme of the invention, the method and system for reducing the number of times of parking of motor vehicles at the crossing through adoption of the plane perception technology can accurately obtain the accurate time of each motor vehicle from an upstream crossing outlet to the stop line so as to accurately start traffic signals for the first vehicle of the motor vehicle queue for reaching the stop line and ensure that the number of times of parking is reduced when the motor vehicles pass through the crossing.