47results about How to "Avoid crowded situations" patented technology

The invention provides an emergency early warning method for stampede accident in a public area, the method comprises the steps: picture or video information of people flow in the public area is shot in real time and sent to a local police station monitoring center; the picture or video information is converted into people flow data information and a people density value in the local police station monitoring center; and a substation management server can process the people flow data information and the people density value and judges the actions of alarming. According to the invention, public area precise number of people can be counted according to people flow data of public area inlet and outlet or passageway and people density value of public area, the counted public area precise number of people can be analyzed in real time, if the value reaches a preset alarm threshold value, the police who manage the substation management server can be timely notified, so that the urgent evacuation can be realized, the stampede accident can be avoided; and the method can comprehensively monitor people flow in public area and precisely count number data of people, the jam condition can be avoided, and the practicability is strong.

The invention relates to the technical field of security and protection, and provides a human face identification security and protection attendance system based on a cloud data processing bank. The human face identification security and protection attendance system comprises a video acquisition end, a wireless transmission module, a cloud data processing bank and a client, wherein the video acquisition end is used for photographing video information and acquiring human face characteristics; the wireless transmission module is used for realizing the data interaction of the video acquisition end, the client and the cloud data processing bank; the cloud data processing bank is used for accomplishing the training of the human face characteristics and the storage of human identity information, realizing the identification of the human face characteristics and the matching of identity information, and storing the information into an attendance list; and the client is used for checking the personnel attendance situation and realizing the man-machine interaction.

The invention provides a public area congestion and stampede emergency early-warning system, which comprises a substation management server, an algorithm server arranged at a police station monitoring center, and a plurality of monitoring terminals, wherein the substation management server and the monitoring terminals are in communication with the algorithm server. The public area congestion and stampede emergency early-warning system provided by the system can count an accurate number of people in a public area according to people flow data detected by the monitoring terminals at entrances and exits or passageways of the public area as well as a people flow density value detected by the monitoring terminals in the public area; in addition, the public area congestion and stampede emergency early-warning system can analyze the counted accurate number of people in the public area in real time, and can notify the police of the substation management server timely when an alarm threshold value set by a user is reached, so as to achieve emergency evacuation and avoid the occurrence of congestion and stampede; and the system can perform overall monitoring on people flow in the public area, counts data about the number of people accurately, avoids the occurrence of congestion, and is high in practicability.

A light-emitting diode device includes a substrate, an epitaxial layer and a first electrode. The epitaxial layer is disposed on the substrate. The first electrode is disposed on the epitaxial layer and includes a connecting portion and a conductive finger. The conductive finger has a first end and a second end, and the first end is connected to the connecting portion. At least one portion of the conductive finger is tapered along an extending direction of the conductive finger.

The invention relates to the technical field of security and protection, and provides a face recognition security and protection attendance system which comprises a video acquiring end, a character identity information base, a character information training module, a character information matching base, a character face feature base, a character information recognition module and an automatic attendance module, wherein the video acquiring end is used for acquiring character face features; the character identity information base is used for recording character identity information comprising names and identities (IDs); the character information training module is used for analyzing face recognition marks corresponding to characters; the character information matching base is used for carrying out unique mapping matching between the character identity information and the face recognition marks analyzed by the character information training module to obtain individual face marks; the character face feature base is used for storing matching results of the character information matching base, namely, individual face recognition marks; the character information recognition module is used for matching the individual face marks extracted from the character face feature base with the character face features acquired by the video acquiring end in real time to obtain character identity information; and the automatic attendance module is used for generating a report generation base of an attendance report according to the character position information and the character identity information.

The invention discloses an intelligent attendance system based on comprehensive identification. The intelligent attendance system comprises an image processing unit, an administrator terminal, a cloudplatform and an employee APP terminal, wherein the employee APP terminal is connected with the image processing unit through a wireless transmission module; the image processing unit, the administrator terminal and the employee APP terminal are connected with the cloud platform through wireless transmission modules respectively. An employee can clock in directly through a mobile terminal APP, andduring clockin, the situation that the employee clocks in when the employee is not in a company can be effectively prevented through accurate positioning; meanwhile, when the employee is on leave oron a business trip, the situation of the employee can be preliminarily understood through accurate position information at the moment of the clockin of the employee, so that when an accident occurs, incapability of knowing a confirming message of the employee in time is prevented.

The invention discloses a transfer capability matching-based hub connection bus station configuring method. The method comprises the steps of calculating and confirming the hub conventional bus feeder passenger traffic demand according to traffic surveys or traffic models; assuming that way lines are all adopted as conventional bus connection lines of hub areas, confirming the required number of the way lines and the density of conventional bus lines of the hub areas; building a method for judging whether starting lines and the way lines are needed to be simultaneously set or not; building an optimal configuration model of the conventional bus connection lines of the hub areas, confirming the number of the starting lines and the number of the way lines and obtaining an optimal configuration scheme of the conventional bus connection lines of the hub areas; and confirming the area and the number of bus original and terminal stations and the number of bus halfway stations and obtaining the connection bus station configuring scheme of the hub areas. By adopting the method disclosed by the invention, the purposes of intensively utilizing the public traffic resource and avoiding the road traffic jam of the hub areas are achieved through the optimal configuration of the conventional bus connection lines and stations.

The invention discloses an escape path planning method based on a BIM technology, and the method comprises the steps: building fire simulation through fire-fighting dynamic simulation software, setting an infrared camera and a smoke alarm in a building as nodes, carrying out parameter initialization, then, calculating the probability of a trapped person k from the node i to the node j according to a state transition probability formula and selecting the next node for thetrapped person, wherein tauij (t) represents pheromones on a path from the node i to the node j at the moment t, alpha is an information heuristic factor and reflects the importance of a track, beta is an expected heuristic factor and reflects the importance of visibility, and eta ij (t) is a heuristic function; and guiding the trapped person to move to the node where the pass time and smoke amout are comprehensive smaller. The escape safety route is dynamically planned for the trapped person in real time by combining the dynamic fire behavior model of the building model BIM, so that the escape probability of the trapped person in a fire disaster is improved, and safe escape in a fire scene is realized.

The invention discloses a bus passenger door with an externally-opening escape function. The bus passenger door comprises a passenger door body. The passenger door body comprises a main passenger doorbody and a door board which are hinged sequentially. The door board is located on the side, away from the inside of a bus, of the main passenger door body and provided with a clamping board. A matching through hole is formed in the main passenger door body. A disengaging device is arranged at the end, near the inside of the bus, on the main passenger door body. When the door board rotates aroundthe hinging axis and is overlapped with the main passenger door body, the clamping board is inserted in the matching through hole and fixed by the disengaging device, and the clamping board and the disengaging device are detachably fixed. In multiple escape methods of the bus, the passenger door is the most effective way, the bus passenger door is improved and redesigned in order to overcome the escape defects of the passenger door under an emergency, the passenger door swings inwards to be opened under the normal operating condition and is opened outwards under the emergency, an escape channel is established for passengers in time, and safety of the passengers is guaranteed.

The invention discloses an entrance guard gate machine used for a scenic spot. The machine comprises a device body. A first gate machine body is fixedly installed in the position, near one side, in the device body. A first induction module is fixedly installed on the outer surface at the front end of the first gate machine body. A connecting seat is movably installed on the outer surface on one side of the first gate machine body. A first brake bar is arranged on the outer surface of the side, away from the first gate machine body, of the connecting seat. A first connecting casing pipe is arranged on the outer surface of the side, away from the connecting seat, of the first brake bar. By the adoption of the entrance guard gate machine used for the scenic spot, the situation that tourists are hit by the brake bar when passing through a channel and thus are hurt can be avoided, meanwhile, flow division can be achieved when the passenger flow volume is too large, child ticket holders andadults pass through the channel separately, adult tourists can be prevented from crossing over a child channel, the situation that old tourists slip and thus are hurt can be prevented, the personal safety of the old tourists is guaranteed, and the use experience of the entrance guard gate machine is better.

The invention discloses a parking lot parking stall management system, comprising a parking stall control module, a parking stall navigation module, an information transmission module, a central processing module and a license plate recognition module. The license plate recognition module performs license plate recognition on vehicles that enter a parking lot, the parking stall control module is used for judging whether a vehicle exists or not on a parking stall, the central processing module is used for performing one-to-one correspondence of the vehicles and empty parking stalls and performing path planning, the information transmission module sends vacancy conditions of parking stalls to the parking stall navigation module, and the parking stall navigation module is used for guiding the vehicles to enter the parking stalls. Through the abovementioned method, the parking lot parking stall management system provided by the invention does not manual operation, a parking stall is planned when vehicles enter the parking lot, and the vehicles are guided to park on the parking stalls through electronic signboards at an intersection, thereby avoiding thereby avoiding occurrence of a congestion situation when vehicle owners look for the parking stalls, and improving efficiency.

The invention discloses an MEMS palladium alloy probe testing method and a probe loading method thereof, belongs to the field of IC manufacturing industry, and particularly relates to a device and method for testing the performance of a palladium alloy probe in an MEMS probe card and a related key technology. The method comprises the following steps of firstly, loading a to-be-tested probe, including a to-be-tested probe loading method for testing the tensile property and a to-be-tested probe loading method for testing the bending property; then setting the test temperature and humidity, namely through the sensor monitoring and the cooperation of a sprayer, a heater and a fan, adjusting the temperature and humidity, wherein in the adjustment process, a disturbance main body rotates under the action of an electromagnetic pole to ensure that the temperature and the humidity in a test environment are uniform; and finally testing. The tensile property and bending property of the to-be-tested probes with different parameters can be tested by only needing the symmetrical bending test structure to work. According to the method, the tensile property and the bending property of the probe onthe MEMS probe card can be tested.

The invention relates to a phone charging pile, in particular to a phone charging pile capable of providing convenience for charging. The technical purpose is to provide the phone charging pile with the advantages that multiple people charging phones cannot cause a crowed phenomenon, the charging pile can be moved conveniently, and the charging is convenient. According to the technical scheme, thephone charging pile capable of providing convenience for charging comprises a base plate, wheels, a connecting rod, a pushing rod, an installing frame, a first sliding rail, a first sliding block, arack and the like; the wheels are installed at the bottom of the base plate, the connecting rod is arranged at the front side surface of a wheel at the right side, and the pushing rod is arranged at the left portion of the upper side of the base plate; a first handle is connected to the top of the pushing rod, and the installing frame is arranged at the right side of the top of the base plate. According to the phone charging pile, a user can conveniently move the phone charging pile through the arranged wheels, a second bearing seat cooperates with a third rotary shaft so that a second charging pile body can conveniently rotate, it is avoided that in the charging peak period, one charging pile position is crowded, it is due to the fact that charging port positions cannot be changed, when people charge phones, the charging pile position is not crowded, and the use is convenient.

The invention discloses a conference table with an adjustable tabletop area and tabletop inclination angle, and relates to the technical field of office supplies. The conference table comprises a mainbody, a toothed bar, a first transmission shaft, a transmission gear, a first bevel gear, a second bevel gear, a double-thread lead screw, a lead screw nut, a limiting plate, a jacking block, a filling plate, a compression spring, a guide sliding groove, a positioning groove, a first halfpace, a second halfpace, a sleeve, a connecting ring, a sliding rod, a reset spring, a displacement sliding ring, locking blocks and connecting rods. By arranging the extrusion block, the limiting block and the positioning groove, the effect of freely adjusting the table top is achieved, the area can be freely adjusted according to needs, operation is easy, use is convenient, and the situation that the conference table is crowded due to the fact that the number of temporary conference participants is large is avoided; and through arrangement of the displacement sliding ring, the connecting ring and the sleeve, the effect of freely adjusting the inclination angle of the table top is achieved, the situation that objects on the table top slide off due to inclination of the table top is avoided, and the using effect of the device is good.

The invention relates to a dynamic target identification and real-time tracking system based on an FPGA. The system comprises an image acquisition module used for acquiring images in real time, an image library used for updating and storing the images acquired in real time, an image processing module, an FPGA module, an analysis module and a cache module, and the image processing module is used for preprocessing the images acquired in real time to obtain processed real-time images; the FPGA module is used for performing target identification; the analysis module is used for performing target tracking and trajectory prediction; the cache module is used for caching data and providing mutual exchange between the data. Compared with the prior art, on the basis of the FPGA technology, filteringbinarization processing, cascading updating and distributed caching are adopted, and processing, target recognition, target tracking and trajectory prediction are carried out on images collected in real time, so that the recognition speed can be effectively increased, the recognition error is reduced, the recognition accuracy is improved, and the purpose of real-time target tracking can be achieved.

The invention discloses an MEMS palladium alloy probe testing device and a key structure and method thereof, belongs to the field of IC manufacturing industry, and particularly relates to a device andmethod for testing the performance of a palladium alloy probe in an MEMS probe card and a related key technology. The MEMS palladium alloy probe testing device comprises a barrel-shaped shell, a disturbance structure arranged on the inner wall of the barrel-shaped shell, an electromagnetic pole arranged on the outer wall of the barrel-shaped shell, a reference test platform horizontally arrangedin the barrel-shaped shell, a symmetrical bending test structure located above the reference test platform, a sealing cover arranged above the barrel-shaped shell, and a sensor, a sprayer, a heater and a fan which are arranged on the sealing cover. According to the structure, the tensile property and the bending property of the probe on the MEMS probe card can be tested.

The invention discloses a navigation method based on traffic flow and a related device. The method comprises the steps of: acquiring real-time traffic flow of a target area in response to a target operation; configuring a target traffic flow for the target area based on a preset rule; comparing the target traffic flow with the real-time traffic flow to generate a path adjustment parameter; and generating a characteristic value according to the path adjustment parameter so as to guide a target driving object to travel according to the updated path plan. Therefore, an intelligent adjustment process in the navigation process is realized. The overall traffic flow in the target area is used as a reference, so that the overall passing time of the target area is shortened. The situation of individual road congestion is avoided through the guidance of the characteristic value, vehicles can pass through conveniently, and the navigation accuracy is improved.

The invention discloses a dormitory management system. An identity identification card records the identity information of a student. An identity information input device inputs the identity information of the student into the identity identification card, and sends the input student identity information into a control center for storage. An identity information reading device reads the information of the identity identification card, and records the attendance information of the student. An identity information makeup device records absence or vacation information of the student. The control center stores the student information transferred by the identity information input device, stores the attendance information transferred by the identity information reading and recording device and the makeup information transferred by the identity information makeup device, compares the attendance information and the makeup information and the pre-stored student information, and records the information of an absent student. The dormitory management system has the advantages of convenient use, simple operation, high data reading and storing accuracy and high practicability.

The invention discloses a parking space barrier device with a remote control function, comprising a barrier device body. The device is characterized in that: a receiving device is arranged on the barrier device body; the receiving device is in signal connection with a remote control device; and the receiving device is connected with a motor for controlling opening and closing of the barrier device body. The barrier device body is of a lifting triangular structure and can also be of a cross-bar structure. Electric connection is adopted between the receiving device and the motor. The device disclosed by the invention has the advantages of convenience for use and time-saving performance.

The invention relates to the technical field of automobile doors, specifically discloses a vehicle door connection hinge. The hinge comprises a vehicle door frame and a vehicle door, wherein the vehicle door frame is internally provided with a vehicle door groove, a fixing plate is welded to the front portion of the vehicle door frame, a fixing column is welded inside the fixing plate, a rotatingmechanism is arranged on the surface of the fixing column, a welding plate is arranged on the surface of the rotating mechanism, a rotating column is welded inside the fixing plate, a front portion ofan orienting plate is rotatably connected to the bottom of the rotating column, an inner handle is welded to the front portion of the vehicle door, and an outer handle is welded to the rear portion of the vehicle door. According to the vehicle door connection hinge, the vehicle door is opened in a Scissors mode, so that the opening space of the vehicle door is expanded to a great extent, high convenience is provided for a vehicle owner when the vehicle owner enters or leaves a vehicle, the situation that the vehicle door is opened too small to cause crowding is avoided, and meanwhile, throughthe scissors type vehicle door connection mode, the whole vehicle becomes more fashionable.

The invention discloses a travelling crane and a boarding / alighting safety device of the travelling crane. The boarding / alighting safety device comprises a guide device (100), a connection rod (200) and a control switch (300). The guide device (100) is arranged at one side of a crawling ladder (400) of the travelling crane and extends along an extension direction of the crawling ladder (400). The connection rod (200) is slidingly arranged on the guide device (100). The top end of the connection rod (200) extends to the top of the crawling ladder (400) and the bottom end of the connection rod (200) extends to the bottom end of the crawling ladder (400). The connection rod (200) is provided with a stirring part (210). The control switch (300) is arranged at one side of the connection rod (200) provided with the stirring part (210) and is used for controlling travelling crane motor circuit on / off switching. The control switch (300) is a spring normally open switch. The stirring part (210) can produce interference with the control switch (300) along with connection rod (200) movement so that the stirring part (210) can apply a force for closing the control switch (300). The boarding / alighting safety device solves the problem that travelling crane maloperation causes braking failure so that a boarding person can be damaged because of crowding.

The invention relates to insect incubation equipment, in particular to a biopharmaceutical periplaneta americana cultivation reproduction incubator which comprises an incubator, a plurality of incubation boxes and incubation cover plates. The incubation boxes are arranged in the incubator, and the incubation cover plates are arranged above the incubation boxes; the incubator comprises a storage cabinet, an egg conveying device, a steam pipe and a heating pipe; ootheca incubation chambers are formed by the incubation boxes and the incubation cover plates, the multiple incubation boxes are arranged in the storage cabinet, and the steam pipe and the heating pipe are communicated with the incubation boxes. The biopharmaceutical periplaneta americana cultivation reproduction incubator has the advantages that the temperatures and the humidity required by incubation environments can be provided to ootheca incubation, the incubation environments in the incubation boxes can be continuously monitored, regulated and controlled by the aid of temperature sensors, humidity sensors and a control center, and accordingly periplaneta americana in oothecae can be successfully incubated; the periplaneta americana incubation efficiency can be effectively improved by the biopharmaceutical periplaneta americana cultivation reproduction incubator, the egg incubation success rate and the larva incubation survival rate further can be increased, and the biopharmaceutical periplaneta americana cultivation reproduction incubator is simple in structure and convenient to use.

The invention relates to rail transit wiring, and discloses a double-rail transit line shared vehicle depot wiring form. The key points of the technical scheme are that a double-island platform is included, the double-island platform includes a first platform and a second platform which are arranged in parallel, and two sides of the first platform are provided with a first line descending direction and a second line descending direction; a first line ascending direction and a second line ascending direction are arranged on the two sides of the second station respectively, a vehicle depot is arranged on one side of the double-island station, the vehicle depot is communicated with a vehicle outgoing line and a vehicle incoming line, and a first single crossover is connected between the vehicle outgoing line and the first line descending direction; and a second single crossover is connected between the vehicle outgoing line and the second line descending direction, a third single crossover is connected between the vehicle incoming line and the second line ascending direction, and a fourth single crossover is connected between the vehicle incoming line and the first line ascending direction. An advantage of reducing the occupied area of a rail transit line is possessed.

The invention provides a buffer distribution device and wire car buffer distribution method of a glass fiber production system, relates to the technical field of glass fiber production and manufacturing, and solves the problem that several production areas share a buffer workshop for wire car buffering, which easily leads to information management confusion technical issues. The device includes a closed track and a shuttle car. The closed track encloses a buffer storage space for the silk car. The closed track has multiple distribution platforms, and multiple shuttle cars are set on the closed track; both the shuttle car and the distribution platform are equipped with transfer machines. . The setting of the wire car buffer storage space avoids the situation of wire car accumulation and workshop logistics channel congestion, and distributes the wire cars through multiple distribution platforms, and the transfer machine will transport the wire cars of the distribution platforms to the corresponding area, and no information will appear Chaotic situation, thus ensuring production efficiency and product quality; and the closed track cooperates with the shuttle car, which has a high degree of automation, reduces labor intensity and improves production efficiency.

The invention discloses a face recognition and two-dimensional code riding system based on a bus application scene. The system comprises a base and a supporting pile. The middle of the top of the baseis fixedly connected with the bottom of the supporting pile, connecting grooves are formed in the two sides of the surface of the supporting pile, telescopic rods are fixedly connected to the middlesof the bottoms of inner cavities of the connecting grooves, and the surfaces of the telescopic rods are fixedly connected with the inner surfaces of the connecting grooves through fixing pieces. Theinvention relates to the technical field of face recognition riding equipment. According to the invention, payment modes during bus taking can be increased and thus the boarding speed is greatly increased; the situation that congestion is caused by too many passengers is avoided; the situation that a bus is late is greatly reduced; people can use the bus more conveniently; people do not need to carry changes every time; and the problem that the existing bus taking system in a bus application scene does not have the two-dimensional code bus taking function is solved.

The invention discloses a voice-based luggage case position detection system. The system comprises a background server, an acquisition camera arranged at an inlet of an uploading conveyor belt at a luggage case shipping place and an identification camera arranged at an inlet of a conveyor belt at a luggage case receiving place, the background server is connected with a ticketing system, the acquisition camera and the identification camera, the background server acquires information of passengers who check in the luggage case in the ticketing system, and acquires image information of the luggage case through the acquisition camera and establishes association, and the background server acquires voice information sent by a user through an applet or real-time chat software. The image information of the luggage case is acquired and then compared, and when the luggage case arrives at the outlet of the conveyor belt at the luggage case receiving position, the passenger can be reminded to receive the own luggage case at the outlet, so that the crowded condition is avoided, and the condition that the luggage case is taken by mistake is also avoided.

The invention discloses a fuel tank support for a vehicle. According to the technical scheme, the fuel tank support for the vehicle is characterized in that the fuel tank support for the vehicle comprises a support body; the support body comprises cable bundle collectors and a bearing frame used for bearing a vehicle fuel tank; the bearing frame and the cable bundle collectors are detachably connected; a connecting hole used for fixing the bearing frame to the vehicle is formed in the bearing frame; battery fixing holes used for fixing the vehicle fuel tank are formed in the bearing frame; and a buffer pad is arranged on the face, making contact with the vehicle fuel tank, of the bearing frame. By the adoption of the fuel tank support for the vehicle, the fuel tank is fixedly connected to the bearing frame, meanwhile, a buffer layer is arranged on the bearing frame, vibration generated in the vehicle running process is effectively reduced, and the situation that vibration of the vehicle affects the inner working environment of the fuel tank is avoided; and meanwhile the unique cable bundle collectors are arranged, bundles of cables connected with the fuel tank are collected, and the situation that the cables are placed in the vehicle disorderly, and consequently the space in the vehicle is congested is avoided.

The invention discloses a configuration method of hub normal bus transit connecting lines based on road condition constraints. The configuration method comprises the following steps of calculating and determining hub normal bus transit passenger gathering and distributing requirements according to a traffic survey or a traffic model; preliminarily assuming that all passing lines are used as the hub normal bus transit connecting lines, and determining the number of the required passing lines; determining the density of the hub normal bus transit lines; establishing a method for judging whether starting lines and the passing lines need to be set at the same time; establishing an optimal configuration model of the hub normal bus transit connecting lines, and determining the number of the starting lines and the number of the passing lines, so as to obtain an optimal configuration scheme of the hub normal bus transit connecting lines. According to the configuration method, the purposes that the hub normal bus transit passenger gathering and distributing requirements are reasonably satisfied, the intensive utilization of public transportation resources is realized through the optimal configuration of the normal bus transit connecting lines and the traffic jam of hub roads is avoided. The configuration method has the advantages of simplicity, practicability and strong operability and effectiveness.

The invention discloses a system for limiting the number of people entering a station for security check. The system comprises a motor for controlling opening and closing of a stop door; and further comprises an IC card reader, an infrared sensor, a data selection circuit and a master controller. The IC card reader is electrically connected with an identity information processor; the infrared sensor is electrically connected with the infrared signal processor and transmits sensed infrared reflection signals when people pass by to the infrared signal processor for processing; the infrared signal processor is electrically connected with the data selection circuit and inputs a processed output signal into the data selection circuit; an output signal of the data selection circuit and an output signal processed by the identity information processor are jointly input to the master controller for processing; and the main controller is electrically connected with the motor and controls the motor to be started and stopped. The method can replace a mode of manually controlling the number of people entering a security check place at a ticket check entrance, realizes automatic control of the number of people, and reduces the manpower cost.

The invention discloses a travelling crane and a boarding / alighting safety device of the travelling crane. The boarding / alighting safety device comprises a guide device (100), a connection rod (200) and a control switch (300). The guide device (100) is arranged at one side of a crawling ladder (400) of the travelling crane and extends along an extension direction of the crawling ladder (400). The connection rod (200) is slidingly arranged on the guide device (100). The top end of the connection rod (200) extends to the top of the crawling ladder (400) and the bottom end of the connection rod (200) extends to the bottom end of the crawling ladder (400). The connection rod (200) is provided with a stirring part (210). The control switch (300) is arranged at one side of the connection rod (200) provided with the stirring part (210) and is used for controlling travelling crane motor circuit on / off switching. The control switch (300) is a spring normally open switch. The stirring part (210) can produce interference with the control switch (300) along with connection rod (200) movement so that the stirring part (210) can apply a force for closing the control switch (300). The boarding / alighting safety device solves the problem that travelling crane maloperation causes braking failure so that a boarding person can be damaged because of crowding.