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51results about How to "Avoid Mishandling Situations" patented technology

Information processing method and electronic equipment

The invention provides an information processing method and electronic equipment. The information processing method comprises the steps that first control information used for controlling a display screen to switch from a first display mode to a second display mode is obtained, the display content on the display screen when the display screen is in the first display mode is displayed in the direction identical to the direction of the long edges of the display screen, and the display content on the display screen when the display screen is in the second display mode is displayed in the direction identical to the direction of the short edges of the display screen; response to first switching information is given, the electronic equipment is controlled to switch from the first display mode to the second display mode, response is prevented from being given to the trigger operation of M keys, and M soft keys are displayed by the display screen in the second display mode when predetermined conditions are met. According to the information processing method and the electronic equipment, when the electronic equipment is switched to the second display mode, response is only given to the trigger operation of the soft keys, no response is given to the trigger operation of solid keys, when the solid keys are touched mistakenly, the electronic equipment gives no response to the trigger operation of the solid keys, and thus the situation of misoperation is avoided.
Owner:LENOVO (BEIJING) LTD

Mechanical key unlocking system

The invention provides a mechanical key unlocking system. The mechanical key unlocking system comprises high-voltage switch locks, low-voltage switch locks, a key interaction box, a front door lock and a back door lock, wherein the high-voltage switch locks are installed on high-voltage switches, and the high-voltage switch lock on an nth transformation branch line is matched with a key An; the low-voltage switch locks are installed on low-voltage switches, and the low-voltage switch lock on the nth transformation branch line is matched with a key Bn; the key interaction box is arranged at the position close to a dry-type transformer and is formed by coupling two lock inlet blocks and two lock outlet blocks, the two lock inlet blocks are matched with the key An and the key Bn respectively, and a key Cn and a key Dn are coupled to the two lock outlet blocks on the nth transformation branch line respectively; the front door lock and the back door lock are installed on a front door and a back door respectively and are matched with the key Cn and the key Dn respectively; the key Cn and the key Dn are synchronously decoupled from the lock outlet blocks through the key An and the key Bn. By means of the mechanical key unlocking system, dry-type transformer overhauling procedures are solidified to a set of interlocking system in the modes forced unlocking and key exchanging, and error operation can be accordingly avoided completely.
Owner:SHANGHAI KAIYAN MACHINERY EQUIP

Speech control method and a system combined with human face information

The invention provides a voice control method and a voice control system combined with human face information. The voice control method and the system provided by the invention can obtain the face information of a plurality of intelligent devices through one camera, thereby avoiding the situation that each device must be configured with a camera separately, and reducing the manufacturing cost of the intelligent device. And it can make the judgment of the target user more clear through the combination of face and voice, and realize the function of taking the instruction from the user with higher authority as the standard when multiple users use the system at the same time. By acquiring the eyeball information of the user to judge the manipulation target of the user, the judgment is more accurate, and the occurrence of misoperation is avoided.
Owner:广州市果豆科技有限责任公司

Control device connection method, device and equipment and computer readable storage medium

The invention provides a control device connection method, device and equipment, and a computer readable storage medium, and relates to the technical field of clouds. The method comprises the steps: obtaining device information of each input device in at least one input device connected to a terminal device; determining at least one control device from the at least one input device according to the device information of each input device; creating a corresponding control process for each control device, the control process being used for transmitting equipment control data between the controldevice and a target application program of the terminal device, and the target application program being used for executing at least one of the following processes in the running process: analyzing the equipment control data to obtain a terminal control event which can be recognized by the target application program; and packaging the terminal control event into equipment control data which can beidentified by the control device. Through the control device connection method provided by the invention, the connection efficiency of the control equipment can be improved.
Owner:TENCENT TECH (SHENZHEN) CO LTD

Crawler crane and traveling posture control method and system thereof

The invention discloses a traveling posture control method of a crawler crane. The method comprises the following steps: connecting a control handle in a hinged mode to a hinged point of a control console of the crawler crane, so that the control handle can rotate on a vertical plane and a horizontal plane by taking the hinged point as the center, and the projection A of an operating end of the control handle on the horizontal plane can move on the horizontal plane and is kept on the circumference which takes the hinged point as the center of a circle and takes the Rmax as a radius and on any inner position thereof; detecting the position of the control handle; controlling the traveling directions and traveling speeds of a left crawler and a right crawler of the crawler crane according to the position of the control handle. The invention also discloses a traveling posture control device and a crawler crane. According to the technical scheme, the condition in the prior art that traveling of the left crawler and the travelling of the right crawler of the crawler crane are respectively controlled by increasing pedals can be avoided, traveling of the crawler crane can be controlled through one control handle only, the cost and operating complexity are reduced, the misoperation condition is avoided, and the safety is improved.
Owner:ZOOMLION HEAVY IND CO LTD

Interface operating method and system

The invention provides an interface operating method and system. The method comprises the steps that in the information acquisition step, eye image information and head movement information are captured in real time; in the head movement acquisition step, the head movement information within a certain time period T1 is analyzed, and head movements are obtained; in the operation target acquisition step, the eye image information of a certain moment t within a certain time period T2 or within a certain time period T2 is analyzed, and the location of the point of fixation of a certain moment t within a certain time period T2 or within a certain time period T2 is obtained, and the operation target is obtained according to the location of the point of fixation; in the execution step, the operation instruction is obtained according to the head movements and the correspondence relation between the operation target and the operation instructions, the operation instructions act on the operation target and carry out operations on the operation target. The method has the advantages that the point of fixation is adopted to locate the target to be operated by a user, which is intuitive and quick; the misoperation situation can be completely eradicated by the continual gaze combined with head gestures, and the accurate recognition rate of an operation is increased.
Owner:BEIJING 7INVENSUN TECH

Switchgear and control method thereof

The invention discloses a switchgear and a control method of the switchgear. A box cover of the switchgear is arranged on a bottom box in an openable mode, an option switch, an automatic control loop and a manual control loop are arranged in the bottom cover, an automatic switch is arranged on the automatic control loop, a manual switch is arranged on the manual control loop, and the option switch is in synchronous linkage with the box cover. When the box cover is opened, the manual switch is exposed, the manual control loop is closed through the option switch, and the automatic control loop is opened; when the box cover is closed, the manual switch is hidden, the automatic control loop is closed through the option switch, and the manual control loop is opened. According to the switchgear and the control method of the switchgear, free switching between a manual control mode and an automatic control mode is achieved through opening and closing of the box cover and linkage between different control loops, the control structure is simple, and switching is convenient to operate; the two modes are independent from each other, when one mode is in work, the other mode is forbidden, control interference caused by misoperation is avoided, and therefore safety and reliability are ensured.
Owner:ZHUHAI UNITECH POWER TECH CO LTD

Tooth aid

The invention relates to a tooth aid, and relates to the field of daily life utensils. The problems of single function and low intellectualized degree of an existing intelligent toothbrush are solved. The tooth aid comprises a long strip shell, wherein a camera is arranged on the side wall of one end of the long strip shell, while a photographing key and a video recording key are arranged on the side wall of the other end of the long strip shell; a control module and a wireless transmission module are arranged inside the long strip shell; the wireless transmission module is connected with the control module, and is used for realizing wireless transmission of remote data together with external intelligent equipment; all of the camera, the photographing key and the video recording key are connected with the control module; the photographing key is used for controlling the photographing of the camera by the control module; the video recording key is used for controlling a video recording function switch of the camera by the control module. The tooth aid disclosed by the invention is applied to cleaning and care of oral cavity teeth, dental appointments, remote treatment and the like.
Owner:鲁学敏

Automatic parking material vehicle and automatic material carrying system and method

The invention discloses an automatic parking material vehicle and an automatic material carrying system and method. The automatic parking material vehicle comprises a vehicle frame, a set of wheels are arranged at the bottom of the vehicle frame, the vehicle frame is further provided with at least two parking uprights, and in the ordinary state, the bottom faces of the parking uprights make contact with a supporting face under the effect of gravity of the parking uprights, wherein the wheels are located on the supporting face. The scheme is exquisite in design and simple in structure, througharrangement of the set of parking uprights, the parking uprights in the ordinary state make contact with the supporting face where the wheels are located, so that the friction force between the material vehicle and the supporting face is increased, the size of the power required by the material vehicle from the static state to the moving state is increased, the start difficulty of the material vehicle is increased, the problem that an independent universal wheel structure is likely to be affected by external force to freely move is solved, displacement of the material vehicle can be avoided, and a foundation is laid for combined use of the material vehicle and automatic carrying equipment.
Owner:张天山

Information processing method and device and electronic equipment

The embodiment of the invention discloses an information processing method and device which are applied to electronic equipment, the electronic equipment transmits display output data to screen projection equipment with a display screen in real time through a wireless network data channel. The method comprises the steps that an input position is obtained; drawing the cursor object to display content based on the input position, and transmitting the cursor object as display output data to screen projection equipment with a display screen through a wireless network data channel for display; obtaining an input event; correspondingly obtaining a conversion position based on the input event; determining a target object corresponding to the input event based on the conversion position; and responding to the input event based on a target object. According to the scheme, corresponding processing is carried out based on the input position corresponding to the input event to obtain the conversion position corresponding to the input event, so that the target object which a user really wants to operate is determined, and the processing can reduce or eliminate the influence caused by delay of display content on the wireless connection screen projection equipment.
Owner:LENOVO (BEIJING) LTD

Switch-on-off button locking mechanism

The invention discloses a switch-on-off button locking mechanism which comprises a switch-on button and a switch-off button. A movable guiding rod and a fixed guiding rod are arranged in a breaker face plate. A switch-on button interlocking plate is arranged on the inner side of the switch-on button. A switch-off button interlocking plate is arranged on the inner side of the switch-off button. A first blocking part is arranged on the movable guiding rod. A first reset spring is arranged between the fixed guiding rod and the switch-on button interlocking plate. An interlocking blocking plate is arranged on the movable guiding rod. A switch-on button lock is arranged on the breaker face plate and is connected with a first lock piece. A second blocking part and a third blocking part are arranged on the fixed guiding rod. A first pressing spring is arranged between the second blocking part and the switch-off button interlocking plate. A switch-off button lock is arranged on the breaker face plate and is connected with a second lock piece. After the structure is used, the switch-on button and the switch-off button can be locked, misoperation is avoided, potential safety hazards are removed, and safety accidents are avoided.
Owner:镇江大全智能电气有限公司

Intelligent navigation control method for five-prevention lock of transformer substation

ActiveCN104266641AAvoid Mishandling SituationsWith intelligent navigation functionNavigation instrumentsTransformerSimulation
The invention relates to an intelligent navigation control method for a five-prevention lock of a transformer substation. The method comprises the following steps that (1) an operator simulates an operation order according to a dispatching command, a first step operation task is displayed on a display screen in form of text after simulation, and meanwhile, an arrival path taking a simulation screen as a starting point and taking a unit of the first step operation task as an ending point is given and broadcast by voices; (2) a computer key automatically analyzes equipment to be operated after reading the operation task; (3) an intelligent navigation system guides the operator to walk to the entrance of a current control room; (4) a position comparison module is added in the computer key, and a prompt about whether operation can be executed or not is given in form of text and voice according to a comparison result. The method is scientific in design and high in practicability, the shortcomings of a conventional transformer substation are overcome, and the safety is improved; in addition, information about equipment in the transformer substation can be stored zonally and hierarchically, so that the method is simple and efficient.
Owner:STATE GRID CORP OF CHINA +1

Five-prevention lock intelligent navigation control system for transformer substation

The invention relates to a five-prevention lock intelligent navigation control system for a transformer substation. The five-prevention lock intelligent navigation control system comprises a central control room, a control module set of the central control room, the transformer substation, a control module set of the transformer substation and five-prevention locks. The control module set in the central control room transmits and receives signals of the control module set of the transformer substation and navigates and prompts all switch cabinets in the transformer substation to avoid misoperation. The system uses the design concept of automobile navigation for reference, on the basis of considering defects existing in the on-site use process of the transformer substation, actual on-site arrangement conditions of primary equipment and secondary equipment are combined, the navigation function is added, operation and path indication is provided for operators at work, and voice indication and visual indication are given when errors occur to prevent electric misoperation.
Owner:STATE GRID CORP OF CHINA +1

Operation control method and system, readable storage medium, and compression and air conditioner systems

The invention provides an operation control method, an operation control system, a computer readable storage medium, a compression system and an air conditioner system, wherein the operation control method comprises the steps that operation parameters of a compressor are obtained, and the variable quantity of the operation parameters in the first duration is calculated; and according to the variable quantity of the operation parameters in the first duration, the compressed air quantity of the compressor is adjusted. According to the operation control method provided by the invention, the compressed air quantity of the compressor is adjusted based on the variation trend of the compressor with-liquid condition. Under the condition that the compressor with-liquid condition has a worsening trend, the compressor with-liquid condition is relieved in a compressed air quantity reduction mode, a higher precision requirement can be achieved, a misoperation condition is avoided, and stable operation of the compressor and the compression system is ensured.
Owner:CHONGQING MIDEA GENERAL REFRIGERATING EQUIP

Anti-interlocking device and power distribution cabinet

The invention provides an anti-interlocking device and a power distribution cabinet. The anti-interlocking device comprises a support frame, a driving mechanism, a knife switch connection frame and a grounding mechanism. A rotating shaft in the driving mechanism is installed on the support frame, and the end portion thereof is fixedly sleeved by a gear. The two ends of a linear guide rail are respectively and rotatably equipped with a support rod, wherein the support rod runs through the support frame and forms a moving pair with the support frame. Springs are arranged between the linear guide rail and the support frame. A toothed bar is movably arranged on the linear guide rail. The toothed bar and the gear are engaged. The knife switch connection frame is arranged on the end portion of the toothed bar. The grounding mechanism is arranged at the bottom portion of the support frame and is in drive connection with the toothed bar. The toothed bar in the driving mechanism drives the knife switch connection frame and the grounding mechanism to realize knife switch disconnection and grounding; and when a semicircular baffle piece on the support rod is detached from a semicircular mounting hole, the linear guide rail moves back, and then, the toothed bar breaks away from the gear, so that connection of power input components is open, and the case of misoperation is prevented.
Owner:ANHUI QUEUE ELECTRIC

Resource processing method, mobile terminal and computer readable storage medium

The invention discloses a resource processing method. The method comprises the steps: receiving region selection operation on resource information on at least two interfaces; comparing operation tracks of the area selection operation of each interface on at least two interfaces; according to the comparison result and / or the selection operation sequence of the region selection operation, processingthe resource information located in the coverage interval of the operation track, the processed resource information is the resource information in a selected state. According to the method and the device, the resource information on two different interfaces can be quickly selected, and the selected resource information can be quickly processed after selection, so a large amount of operation timeis saved. In addition, different processing can be carried out on the selected resource information according to different operation tracks of the user, diversified processing modes are provided, only simple track operation needs to be carried out, the processing efficiency is further improved, and the processing time is saved.
Owner:SHENZHEN TRANSSION HLDG CO LTD

Remote control system for transformer

The invention provides a remote control system for a transformer, and belongs to the technical field of jack control. Comprising a controller, a communication module, a wireless receiver, a direct-current stabilized power supply, a driver, an electromagnetic pilot valve, a main valve group, a plurality of groups of jacks, a plurality of groups of mounting hook heads, a hook head limiting assembly and a relay box body, the wireless receiver is connected with one end of the controller through the communication module, and the direct-current stabilized power supply is connected with the other end of the controller through the communication module. The control system is convenient to assemble and disassemble, an assembling person and an operating person can be combined into a whole, the assembling person and the disassembling person can control the transformer nearby, the procedure of operation instruction transmission is reduced, various misoperation conditions caused by instruction transmission and unclear understanding are avoided, the efficiency of operation actions of the transformer is greatly improved, and the operation efficiency of the transformer is improved. Therefore, the assembling and disassembling efficiency and the working safety are improved.
Owner:HUAIBEI MINING IND

A mutually exclusive operating system that can control the action of power tongs

The present invention provides a mutually-exclusive operating system capable of controlling the action of power tongs. The mutually-exclusive operating system includes power tongs, a control device and a linear driving mechanism; the linear driving mechanism is controlled by the control device so as to drive the power tongs to move linearly; the control device comprises a relay group; the relays of the relay group are sequentially connected with one another; each relay includes a common end, a normally closed end and a normally open end; under an initial state, the common end is conductively connected with the normally closed end; under the access of external control signals, the common end veers to be conductively connected with the normally open end; the common end of the relay which is arranged at the first place in the relay group is connected with a power source; an operator can control the power tongs through the remote control device so as to intuitively observe the position of the power tongs to adjust the power tongs; the operator can remotely control the operation of the power tongs, and therefore, safety accidents can be decreased; and the relay group is correspondingly arranged and connected in the operation system, so that mutually-exclusive operation can be realized, and misoperation can be avoided.
Owner:RUDONG QIANJIN PETROLEUM MACHINERY MFR +1

Operation ticket cross-value operation method and device, terminal equipment and storage medium

The invention discloses an operation ticket cross-value operation method and device, terminal equipment and a storage medium. The method comprises the following steps: constructing an operation ticket multi-intelligent model based on an MAS system; decomposing and coordinating an operation task of a power grid line by using the operation ticket multi-intelligent model, and determining operation equipment and a running state of the operation equipment; setting a sorting rule, sorting the operation equipment according to the sorting rule, and generating an operation order; and issuing an auditing instruction to a dispatcher, and enabling the dispatcher to execute the operation ticket after the auditing is passed. According to the operation ticket cross-value operation method provided by the invention, the operation ticket multi-intelligent model is constructed based on the multi-agent technology, the cross-value operation of the operation ticket is regulated and controlled, the real-time safety verification of the operation process is realized, and the misoperation condition is avoided. The billing time of regulation and control personnel can be saved, the working intensity of the regulation and control personnel is reduced, and the safety and reliability of power grid operation are improved.
Owner:GUANGDONG POWER GRID CO LTD +1

Revolving electricity loss control apparatus of tower crane

A slewing blackout control device of a tower crane comprises a housing, an impeller of a hydraulic coupler arranged in the housing, a gland, a bottom cover, a braking steel disk, a friction disk and amagnetic coil; the gland is fixedly connected with the braking steel disk; the braking steel disk is matched with the friction disk; the friction disk is fixedly connected with the braking steel disk; the gland is connected with the bottom cover by a back spring; the bottom cover is arranged in the housing; the lower end of a main shaft is provided with an output gear. The device further comprises an operating handle arranged in a cab, a compression ring and cam eccentric shafts; the operating handle is connected with a steel wire rope which is connected with the compression ring; two cam eccentric shafts are positioned at the two sides of the upper part of the gland; the bearing of the cam eccentric shafts is arranged in the housing; the two ends of the compression ring are fixedly connected with the cam eccentric shafts respectively; and a travel switch is arranged on the operating handle for controlling the power-on or power-off. The device of can manually control the stop after the blackout, avoid collision accident caused by the inertia, and has good safe performance.
Owner:科曼萨建设机械(杭州)有限公司

Control method of water supply system

The invention relates to the technical field of faucets, and provides a control method of a water supply system, the water supply system comprises a water purifier and a faucet, the water outlet of the water purifier is connected with the water inlet of the faucet, and an electromagnetic valve is arranged between the water outlet of the water purifier and the water outlet of the faucet. The method comprises the steps that under the condition that the faucet is in a water cut-off state, a first input that a user rotates a handle of the faucet in a first direction is received, and the handle is reset after reaching a first target position; in response to the first input, controlling the first of the following actions: the water purifier produces water and the electromagnetic valve is opened to enable the water outlet of the faucet to discharge water; the water outlet temperature of the faucet is adjusted; and the water outlet amount of the faucet is adjusted. According to the method, the faucet is controlled by rotating the handle in the first direction, the handle can automatically reset after rotating, a user does not need to operate the handle to reset, the water taking process is more convenient and faster, and intelligent control over the water supply system is achieved.
Owner:FOSHAN MIDEA CHUNGHO WATER PURIFICATION MFG +1

Switchgear and its control method

The invention discloses a switchgear and a control method of the switchgear. A box cover of the switchgear is arranged on a bottom box in an openable mode, an option switch, an automatic control loop and a manual control loop are arranged in the bottom cover, an automatic switch is arranged on the automatic control loop, a manual switch is arranged on the manual control loop, and the option switch is in synchronous linkage with the box cover. When the box cover is opened, the manual switch is exposed, the manual control loop is closed through the option switch, and the automatic control loop is opened; when the box cover is closed, the manual switch is hidden, the automatic control loop is closed through the option switch, and the manual control loop is opened. According to the switchgear and the control method of the switchgear, free switching between a manual control mode and an automatic control mode is achieved through opening and closing of the box cover and linkage between different control loops, the control structure is simple, and switching is convenient to operate; the two modes are independent from each other, when one mode is in work, the other mode is forbidden, control interference caused by misoperation is avoided, and therefore safety and reliability are ensured.
Owner:ZHUHAI UNITECH POWER TECH CO LTD

Anti-interlocking device and its distribution cabinet

The invention provides an anti-interlock device and its power distribution cabinet, wherein the anti-interlock device includes a support frame, a driving mechanism, a switch knife connecting frame and a grounding mechanism, the rotating shaft in the driving mechanism is installed on the support frame, and its end There are gears in the fixed sleeve, and support rods are installed on both ends of the linear guide rail. The support rods pass through the support frame and form a moving pair with the support frame. There is a spring between the linear guide rail and the support frame. On the guide rail, the rack is meshed with the gear, the knife connecting frame is installed at the end of the rack, and the grounding mechanism is arranged at the bottom of the support frame and connected with the rack in transmission. The racks in the driving mechanism respectively drive the blade connection frame and the grounding mechanism to realize the disconnection and grounding of the blades, and the semicircular baffle on the support rod is separated from the semicircular mounting hole, and then the linear guide rail retreats. At this time, the gear The bar is disengaged from the gear, and then the connection between the power input components is disconnected, which avoids the occurrence of misoperation.
Owner:ANHUI QUEUE ELECTRIC

Device and cutting method for semi-automatic cutting of product waste

The invention provides a device for semi-automatic cutting of product waste. The device comprises a touch display screen, an oil cylinder, a case, air pipes, a right auxiliary clamp, a left auxiliaryclamp, emergency stop buttons, action buttons, a driving head, a lifting mechanism, a cutter knife, a lifting disc, a fixed station, a lower auxiliary clamp and a fixed bracket; the case is connectedonto the fixed station through the lifting mechanism, and the lifting mechanism comprises the lifting disc arranged at the side part; a built-in control module and a pneumatic pipeline are arranged inthe case, the touch display screen electrically connected with the built-in control module is arranged on the case, the driving head is arranged on the side facing the fixed station, the oil cylinderis arranged at the top of the case, and the driving head is connected with the oil cylinder and rotates under driving of the oil cylinder; and the fixed bracket is arranged on the fixed station, thefixed center of the fixed bracket is located in the central axis of the driving head, the lower auxiliary clamp is arranged on the fixed station, and the cutter knife is fixedly connected onto the fixed station. By means of the detachable lower auxiliary clamp, materials with different diameters are clamped, the device is semi-automatic and is calibrated manually, meanwhile, the device can act under the action of logical AND when the two action buttons are pressed simultaneously to produce two signals, so that the condition of misoperation is avoided, the semi-automatic cutting is realized, the operation and control are simple, and the cutting efficiency is greatly increased.
Owner:JIANGXI KAILIDE TECH CO LTD

Forest skidding vehicle driving control method and system

The invention discloses a forest skidding vehicle driving control method, which comprises the following steps: a driving mode is selected, that is, a required driving mode is selected through a mode selector, wherein the driving mode comprises a forward mode, a backward mode, a neutral gear mode and a working mode, and only one driving mode can be selected; in the selected corresponding driving mode, an action element enters a standby state or enters a working state according to the driving mode setting parameters; and the action element receives an upper-layer instruction and enters a corresponding action state. The invention further provides a forest skidding vehicle driving control system using the method. According to the forest skidding vehicle driving control method and system, the skidding vehicle is controlled by selecting the corresponding working mode, the logic is clear, the operation is simple, the misoperation probability of a driver is reduced, and the safety performance of equipment is improved.
Owner:河北哈沃机器人有限公司

A handcart propulsion interlocking device for DC fast circuit breaker

The invention relates to a direct current fast breaker handcart advancing interlocking device, and includes a lead screw nut advancing mechanism, a clutch mechanism, a direct current fast breaker switching-off mechanism and an integrated operation interlocking mechanism, wherein the lead screw nut advancing mechanism includes a threaded lead screw and a nut block, and the threaded lead screw penetrates through the nut block; the clutch mechanism includes a clutch device and a clutch shaft sleeve, one end of the threaded lead screw stretched into the clutch device, and the clutch shaft sleeve sleeves one end of the threaded lead screw. The direct current fast breaker handcart advancing interlocking device provided by the invention can avoid occurrence of a circumstance that other frequent operation of the lead screw mechanism causes damage to the lead screw and thus the breaker handcart cannot be operated, reduces the step of artificially judging whether the direct current breaker handcart is in place, ensures that the handcart can reliably switch off the direct current quick breaker through manual operation under various circumstances, is safe and reliable, avoids misoperation circumstances caused by human factors, and ensures personal safety of operating personnel.
Owner:WUHAN ZHONGZHI ELECTRIC

Crawler crane and its walking attitude control method and control system

The invention discloses a traveling posture control method of a crawler crane. The method comprises the following steps: connecting a control handle in a hinged mode to a hinged point of a control console of the crawler crane, so that the control handle can rotate on a vertical plane and a horizontal plane by taking the hinged point as the center, and the projection A of an operating end of the control handle on the horizontal plane can move on the horizontal plane and is kept on the circumference which takes the hinged point as the center of a circle and takes the Rmax as a radius and on any inner position thereof; detecting the position of the control handle; controlling the traveling directions and traveling speeds of a left crawler and a right crawler of the crawler crane according to the position of the control handle. The invention also discloses a traveling posture control device and a crawler crane. According to the technical scheme, the condition in the prior art that traveling of the left crawler and the travelling of the right crawler of the crawler crane are respectively controlled by increasing pedals can be avoided, traveling of the crawler crane can be controlled through one control handle only, the cost and operating complexity are reduced, the misoperation condition is avoided, and the safety is improved.
Owner:ZOOMLION HEAVY IND CO LTD
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