CN106504749A - An intelligent voice remote control device for a monorail crane - Google Patents

Abstract

The invention discloses a kind of monorail crane intelligent sound remote control unit.The monorail crane intelligent sound remote control unit by remote control and Vehicle Controller, band-type brake sensor, the sensor group that declutches into.Phonetic control command to unspecified person, the monorail crane intelligent sound remote control unit can pick out can pick out " advance ", " retrogressing ", " band-type brake ", " declutch ", " rise hook ", " drop hook ", " stoppings " voice of 7 kinds of unspecified persons, and this 7 kinds of voices are converted into digital control accordingly realization to the control of the intelligent sound of monorail crane；The monorail crane intelligent sound remote control unit also provides corresponding 7 by key control, realizes wireless remote control to monorail crane.The monorail crane intelligent sound remote control unit achieves the wireless remote control of voice and key combination.

Description

An intelligent voice remote control device for a monorail crane

technical field

The patent of the present invention relates to the wireless remote control of monorail cranes in mines, especially the wireless remote control of voice commands of monorail cranes.

Background technique

Monorail crane transportation is one of the important transportation methods for the auxiliary operation of mine production. It is composed of hanging vehicles with various functions connected into a train group, and under the electric traction of diesel engine or battery pack, it runs along the suspended I-steel rail hanging beam. system. The main advantages of monorail crane transportation: first, the monorail crane has a small cross-section, and the space utilization rate of the roadway section is high; Three kinds of vertical curves, horizontal curves and complex curves; third, it can complete the auxiliary transportation from the mining area yard to the working face without reloading, and can be used for auxiliary transportation operations connecting the main transportation roadway and the mining area roadway. Therefore, it is widely used in mine production. In recent years, with the development of wireless remote control technology and voice recognition technology, these two control methods have been gradually applied in various industries, but in the transportation control of monorail cranes, the application of these two control technologies is still blank. Therefore, it is necessary to develop an intelligent voice control device for monorail cranes, which can realize wireless remote control and voice control of monorail cranes. The technology has a high degree of intelligence, advanced technology, low production cost, and has a good market competitive advantage and promotion and application value.

Contents of the invention

The purpose of the embodiments of the present invention is to provide an intelligent voice remote control device for a monorail crane, aiming at solving the voice control and wireless remote control of the monorail crane.

The embodiment of the present invention is achieved in this way, the monorail crane intelligent voice remote control device includes:

Remote control, handheld voice remote control device, consisting of remote control shell, microphone, voice chip, remote control CPU, power indicator light, brake release indicator light, key input group, wireless transmitting module, transmitting antenna, remote control switch, battery pack Composition, when the monorail crane operator operates the monorail crane with voice control or button remote control, the remote control central processor of the remote controller processes the voice control command and the button input command and converts it into a control command of the monorail crane, and transmits it through the wireless transmission module and The transmitting antenna is transmitted to the on-board controller, which is used to realize the voice and button wireless remote control of the monorail crane;

The on-board controller is installed on the monorail crane and consists of receiving antenna, wireless receiving module, on-board CPU, relay output group, running indicator light, power supply, switch, and on-board controller shell. It is used to receive wireless signals sent by the remote control The control signal, when the braking brake of the monorail crane is in the brake release state, after receiving the voice or button operation command sent by the remote controller, controls the corresponding relay action of the relay output group, and controls the monorail crane to perform corresponding command operations;

The brake release sensor is installed at the release position of the brake of the monorail crane, and transmits the detection signal to the vehicle-mounted central processing unit of the vehicle controller to detect whether the brake of the monorail crane is in the brake release state. In the brake release state, after receiving the voice or button control command from the remote controller, the on-board controller controls the corresponding relays of the relay output group to act, and controls the monorail crane to perform corresponding command operations;

The brake sensor is installed at the brake position of the brake of the monorail crane, and transmits the detection signal to the vehicle-mounted central processing unit of the vehicle controller to detect whether the brake of the monorail crane is in the brake state;

The shell of the remote controller, the shell of the remote controller, is used to install and fix the microphone, the voice chip, the remote control central processing unit, the power indicator light, the button input group, the wireless transmitting module, the transmitting antenna, the remote control switch, and the components of the battery pack shell;

A microphone, one of the components of the remote controller, is an electronic component used to receive voice control instructions from the operator, and the received sound signal is transmitted to the voice chip;

The voice chip, one of the components of the remote control, performs analog-to-digital conversion on the non-specific voice signal received by the microphone, converts the analog voice signal into a digital signal and sends it to the remote control central processor for subsequent analysis;

The button input group, one of the components of the remote controller, consists of 7 buttons F1-F7, which are the monorail crane forward button, the monorail crane back button, the brake brake button, the brake brake release button, Hook lifting button, hook lowering button, and stop button, when any one of the 7 buttons in the remote control button input group is pressed, it will be analyzed and processed by the remote control central processor, and wirelessly communicated to the vehicle controller. When the brake is released, control the monorail crane to execute the corresponding control command;

The remote control central processing unit, one of the components of the remote control, is the core central processing unit of the remote control, receiving the voice control command transmitted by the voice chip and the key control command of the key input group, and analyzing and processing the two commands After wireless transmission to the on-board controller, the monorail crane is controlled to execute the corresponding control commands. For voice control commands, through the recognition of the voice characteristics of non-specific people, it can identify "forward", "backward", "holding the brake", "releasing the brake" ", "Up hook", "Down hook", "Stop" 7 non-specific voices, and convert these 7 voices into corresponding digital control instructions and transmit them to the on-board controller for corresponding monorail crane control;

A battery pack, one of the components of the remote controller, provides electric energy for the remote controller;

The remote control switch, one of the components of the remote control, turns on and off the remote control by turning on and off the battery pack;

The wireless transmitting module, one of the components of the remote controller, wirelessly transmits the control instructions of the remote central processing unit to the vehicle controller through the transmitting antenna;

The transmitting antenna, one of the components of the remote controller, wirelessly transmits the signal transmitted by the wireless transmitting module;

A power indicator light, one of the components of the remote controller, is used to indicate whether the remote controller is powered;

The brake release indicator light, one of the components of the remote controller, is used to indicate whether the brake of the monorail crane is in the brake release state, and only in the brake release state, the remote controller can control the operation of the monorail crane;

The receiving antenna, one of the components of the on-board controller, receives the control instructions wirelessly transmitted by the remote controller;

The wireless receiving module, one of the components of the on-board controller, transmits the signal received by the receiving antenna to the on-board central processing unit for analysis and processing;

The vehicle-mounted central processing unit is the central processing unit of the vehicle-mounted controller. After the control instructions wirelessly transmitted by the remote controller are transmitted to the vehicle-mounted central processor of the vehicle-mounted controller via the receiving antenna, the brakes are activated. In the state of brake release, the corresponding output relays of the relay output group are controlled, so that the monorail crane performs corresponding actions.

The relay output group, one of the components of the on-board controller, is composed of 6 relays J1-J6, which are the forward relay of the monorail crane, the backward relay of the monorail crane, the brake brake relay, and the brake brake release relay , Hook lifting relay, hook lowering relay, used to control 6 operations of monorail crane forward, monorail crane backward, brake lock, brake release, hook lift, hook drop;

Operation indicator light, one of the components of the on-board controller, is used to indicate the operation of the controlled monorail crane;

Power supply, one of the components of the on-board controller, is the electric energy of the on-board controller;

The switch, one of the components of the on-board controller, turns on and off the on-board controller by turning on and off the power supply.

Further, the intelligent voice remote control device of the monorail crane can recognize the voice features of the remote control, such as "forward", "backward", "holding brake", "releasing brake", "lifting hook", "lowering hook" ", "Stop" 7 non-specific voices, and convert these 7 voices into corresponding digital control instructions and transmit them to the vehicle controller, realizing the voice wireless remote control of the monorail crane.

Further, the intelligent voice remote control device of the monorail crane, in the intelligent voice remote control device of the monorail crane, not only can realize the wireless remote control of 7 kinds of non-specific voice commands, but also can realize the wireless remote control of 7 buttons, realizing the voice and key combination wireless remote control.

Further, when the brake release sensor detects that the brake of the monorail crane is in the brake release state, the remote control can only be allowed to control the operation of the monorail crane by voice or button.

Further, when any voice command of "forward", "backward", "hold brake", "release brake", "raise hook", "lower hook" or press any button F1-F6, the vehicle control The controllers respectively control the corresponding relays of J1-J6, and control the monorail crane to perform corresponding 6 operations of forward, backward, brake lock, brake release, hook lifting, and hook lowering. In the "stop" voice command Or when the F7 key is pressed, any of the above-mentioned 6 types of operations being executed will be stopped.

Further, in the initial stage of monorail hoisting, first issue the "release brake" command or press the F4 button to release the braking brake of the monorail hoist. Only after the brake release indicator of the remote control is on can the monorail hoist be adjusted. At this time, you can issue any voice command of "forward", "backward", "hold brake", "release brake", "raise hook", "lower hook", or press any button F1-F6, all The above-mentioned monorail crane intelligent voice remote control device controls the monorail crane to perform the corresponding operation. When the monorail crane executes the command control, the next control command must be the "stop" voice command or the F7 button to stop the current operation. Other control commands are invalid. When the stop After the current operation is completed, another operation can be carried out, which ensures the safety of the controlled monorail crane and the operator.

The invention realizes control methods such as wireless remote control and voice control of the monorail crane, realizes the intelligent control of the monorail crane, greatly reduces the labor intensity of the monorail crane operators, and the scientific research results will greatly promote scientific and technological progress and social and economic development. develop.

Description of drawings

Fig. 1 is a block diagram of the overall composition and structure of the monorail crane intelligent voice remote control device provided by the embodiment of the present invention.

Fig. 2 is a schematic diagram of composition relationship of the monorail crane intelligent voice remote control device provided by the embodiment of the present invention.

In the figure, 1. Remote control shell; 2. Microphone; 3. Voice chip; 4. Remote control central processing unit; 5. Release indicator light; 6. Power indicator light; 7. Key input group; 9. Transmitting antenna; 10. Remote control switch; 11. Battery pack; 12. Receiving antenna; 13. Wireless receiving module; 14. Vehicle central processing unit; 15. Vehicle controller shell; 16. Switch; 17. Power supply; 18 .Run indicator light; 19. Relay output group; 20. Brake release sensor; 21. Brake sensor.

detailed description

In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

Fig. 1 shows the composition structure of the monorail crane intelligent voice remote control device provided by the present invention. For ease of illustration, only the parts relevant to the present invention are shown.

The intelligent voice remote control device for a monorail crane of the present invention is composed of a remote controller, a vehicle-mounted controller, a brake release sensor, and a brake lock sensor.

The remote controller of the monorail crane intelligent voice remote control device of the present invention consists of a remote controller shell 1, a microphone 2, a voice chip 3, a remote control central processing unit 4, a brake release indicator light 5, a power indicator light 6, a key input group 7, and a wireless transmission module 8. The transmitting antenna 9, the remote control switch 10, and the battery pack 11 are composed; the vehicle-mounted controller is composed of a receiving antenna 12, a wireless receiving module 13, a vehicle-mounted central processing unit 14, a vehicle-mounted controller shell 15, a switch 16, a power supply 17, and a running indicator light 18. Composed of 19 relay output groups.

The remote control central processing unit 4 of the remote controller receives the voice control command transmitted by the voice chip 3 and performs feature recognition on the voice command of the non-specific person, and recognizes "forward", "backward", "holding the brake" and "releasing the brake". ", "Hook up", "Hook down", and "Stop" are 7 voice control commands, and these 7 voices are converted into corresponding digital control commands and transmitted to the on-board controller for corresponding monorail crane control.

The button input group 7 of the remote control is composed of 7 buttons F1-F7, which are the monorail crane forward button, the monorail crane back button, the brake brake button, the brake brake release button, and the hook lift button , hook lowering button, stop button, when any one of the 7 buttons in the remote control button input group 7 is pressed, it will be analyzed and processed by the remote control central processing unit 4, and wirelessly communicated to the vehicle-mounted controller , when the brake is released, control the monorail crane to execute the corresponding control command.

In the initial stage of monorail hoisting, first aim at the microphone 2 of the remote controller and send out the voice command "loose brake" or press the F4 button of the button input group 7 of the remote controller, and release the brake of the monorail crane. The monorail crane can only be controlled after the brake release indicator 5 of the remote controller is on. At this time, the microphone 2 of the remote controller can be directed at the microphone 2 of the remote controller to send out "forward", "backward", "brake release", "brake release". ", "Up hook", "Down hook" any voice command, or press any button F1-F6 of the key input group 7 of the remote control, and the monorail crane intelligent voice remote control device controls the monorail crane to perform corresponding operations , when the monorail crane executes the command control, the next control command must be the "stop" voice command or the F7 button to stop the current operation, and other control commands are invalid. After the current execution operation is stopped, another operation operation can be performed , to ensure the safety of the accused monorail crane and the operator.

The relay output group 19 of the on-board controller is composed of 6 relays J1-J6, which are the forward relay of the monorail crane, the backward relay of the monorail crane, the brake brake relay, the brake brake release relay, and the lifting hook of the hook. Relay, hook lowering relay, used to control 6 operations of monorail crane forward, monorail crane backward, brake lock, brake release, hook lift and hook drop.

The battery pack 11 is the power supply unit of the remote controller, which supplies power to all electrical components of the remote controller through the remote controller switch 10, and the remote controller switch 10 is a switch element of the remote controller, and only The remote controller is powered on only when the remote controller switch 10 is turned on.

The vehicle-mounted central processing unit 14 is the central processing unit of the vehicle-mounted controller, and the control instructions wirelessly transmitted by the remote controller are transmitted to the vehicle-mounted central processing unit 14 of the vehicle-mounted controller via the receiving antenna 12, so The vehicle-mounted central processor 14 controls the corresponding output relays of the relay output group 19 after receiving the control instruction, so that the monorail crane performs corresponding actions.

The power supply 17 provides electric energy for the vehicle-mounted controller, supplies power to all electrical components of the vehicle-mounted controller through the switch 16, and the switch 16 is a switching element of the vehicle-mounted controller. The vehicle-mounted controller is only powered to work under the 16-open state.

Fig. 2 is a schematic diagram of the composition relationship of the embodiment of the present invention.

The remote controller is a hand-held operation terminal, the on-board controller is installed inside the monorail crane, and the brake release sensor 20 and the brake sensor 21 are respectively installed at the brake release position and the brake lock position of the monorail crane. Location.

The microphone 2 is connected to the input pin of the voice chip 3, and the output pin of the voice chip 3 is connected to the input pin of the remote control central processing unit 4; the wireless transmitting module 8 is connected to the remote control central The output pin of the processor 4, the control signal sent by the remote control central processing unit 4 is amplified and transmitted through the wireless transmitting module 8 through the transmitting antenna 9; the power indicator light 6 is connected to the remote control central processing unit The output pin of 4 is used to indicate whether the remote controller is powered and whether the battery pack has electricity; the brake release indicator 5 is connected to the output pin of the remote control central processing unit 4, and the brake release indication signal is controlled by the vehicle The remote controller wirelessly transmits to the remote control central processing unit 4 of the remote control, indicating through the release indicator light 5; the battery pack 11 is the power supply element of the remote control, controlled by the switch 10 of the remote control, for The components of the remote control are powered; the remote control shell 1 is the shell of the remote control, and is used to load or fix the 1-11 electrical components of the remote control.

The relay output group 19 is connected with the output pin of the vehicle controller 14; the wireless receiving module 13 is connected with the input pin of the vehicle controller 14, and the control signal passes through the wireless receiving module 13 through the The receiving antenna 12 transmits; the power supply 17 is the power supply unit of the vehicle controller, which is controlled by the switch 16 to supply power to the components of the vehicle controller; the running indicator light 18 is connected with the vehicle controller The output pins of the central processing unit 14 are connected to indicate the operating status of the monorail crane; the vehicle-mounted controller shell 15 is the housing of the vehicle-mounted controller, which is used to load or fix the 12-19 of the vehicle-mounted controller Electrical components.

The brake release sensor 20 and the brake sensor 21 are connected to the input pins of the vehicle central processing unit 14 of the vehicle controller to detect the brake release and brake status of the monorail crane.

As an optimization scheme of the embodiment of the present invention, the intelligent voice remote control device for the monorail crane can recognize "forward", "reverse", "lock brake", "release brake", "raise hook", "lower hook", "Stop" 7 kinds of non-specific voices, and convert these 7 kinds of voices into corresponding digital control instructions and transmit them to the on-board controller, realizing the voice intelligent voice control of the monorail crane, and at the same time realizing the wireless remote control of 7 buttons, Realized the wireless remote control of voice and button combination.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the protection of the present invention. within range.

Claims (6)

1. a kind of monorail crane intelligent sound remote control unit, it is characterised in that the monorail crane intelligent sound remote control unit includes：

Remote control, hand-held speech remote controller, by remote controller casing, mike, speech chip, remote controlled central processor, electricity Source display lamp, the display lamp that declutches, key-press input group, wireless transmitter module, transmitting antenna, remote control switch, set of cells composition, when When monorail crane operator Voice command or button remote manipulation monorail crane, the remote controlled central processor of the remote control is by language Sound control instruction and button input instruction are converted into the control instruction of monorail crane after processing, and by wireless transmitter module and transmitting Antenna transmission to Vehicle Controller, for realizing the voice and button wireless remote control of monorail crane；

Vehicle Controller, on monorail crane, defeated by reception antenna, wireless receiving module, vehicle-mounted central processor, relay Go out group, run indicator, power supply, switch, Vehicle Controller shell composition, in order to receive the controlled in wireless letter that remote control sends Number, in the damper brake of monorail crane in declutching under state, when the voice or button operation that receive the remote control transmission refer to After order, the corresponding actuating of relay of control relay output group, control monorail crane carry out command adapted thereto operation；

Declutch sensor, installed in the position of declutching of the damper brake of monorail crane, and detection signal is transferred to the vehicle-mounted control The vehicle-mounted central processor of device, for detecting the damper brake of monorail crane whether in the state of declutching, only under the state of declutching, described After Vehicle Controller is in the voice for receiving the remote control or by key control control instruction, the phase of control relay output group The actuating of relay, control monorail crane is answered to carry out command adapted thereto operation；

Detection signal installed in the band-type brake position of the damper brake of monorail crane, and is transferred to the vehicle-mounted control by band-type brake sensor Whether the vehicle-mounted central processor of device, detect the damper brake of monorail crane in band-type brake state；

Remote controller casing, the housing of the remote control, for install and fix mike, speech chip, remote controlled central processor, Power supply indicator, key-press input group, wireless transmitter module, transmitting antenna, remote control switch, the shell of battery element；

One of mike, components and parts of the remote control, for receiving the electronic component of operator's phonetic control command, receive Transmission of sound signals to speech chip；

One of speech chip, components and parts of the remote control, carry out modulus to the voice signal of the unspecified person that mike is received Conversion, the voice signal of analog quantity is converted into digital signal sending remote controlled central processor to carries out subsequent analysis；

One of key-press input group, components and parts of the remote control, by F1-F7, totally 7 buttons are constituted, and respectively monorail crane advances and presses Key, monorail crane Reverse keys, damper brake band-type brake button, damper brake declutch button, suspension hook rise hook button, suspension hook drop hook button, stop Only button, after any one of 7 buttons in the remote controller key input group is pressed, at remote controlled central processor analysis Reason, and wireless telecommunications are to Vehicle Controller, in the case where damper brake declutches state, control monorail crane executes corresponding control instruction；

One of remote controlled central processor, components and parts of the remote control, are the core central processing unit of the remote control, receive The phonetic control command of speech chip transmission and the button control instruction of key-press input group, nothing after both instruction analysis are processed Line is transferred to Vehicle Controller, and control monorail crane executes corresponding control instruction, to phonetic control command, by unspecified person Phonetic feature recognize, can pick out " advance ", " retrogressing ", " band-type brake ", " declutch ", " rise hook ", " drop hook ", " " 7 kinds non-for stopping The voice of particular person, and this 7 kinds of voices are converted into corresponding numerical control instruction are transferred to Vehicle Controller and carry out accordingly Monorail crane is controlled；

One of set of cells, components and parts of the remote control, provide electric energy for the remote control；

Remote control is switched, one of components and parts of the remote control, opens and closes the remote control by connecting, cutting off set of cells Device；

One of wireless transmitter module, components and parts of the remote control, by the control instruction of the remote controlled central processor by sending out Antenna wireless transmission is penetrated to Vehicle Controller；

One of transmitting antenna, components and parts of the remote control, the signal that wireless transmitter module transmission comes is wirelessly transferred out Go；

One of power supply indicator, components and parts of the remote control, be used to refer to the remote control whether electric；

Declutch display lamp, one of components and parts of the remote control, whether is used to refer to the damper brake of monorail crane in the state of declutching, only Have under the state of declutching, the remote control could control single track crane operation；

One of reception antenna, components and parts of the Vehicle Controller, receive the remote control and are wirelessly transferred the control instruction that comes；

One of wireless receiving module, components and parts of the Vehicle Controller, the signal transmission that reception antenna is received is to vehicle-mounted Central processing unit is analyzed process；

Vehicle-mounted central processor, is the CPU of the Vehicle Controller, the control come by the remote control wireless transmit System instruction is transferred to after the vehicle-mounted central processor of the Vehicle Controller via the reception antenna, is declutched state in damper brake The lower corresponding output relay for controlling the relay output group, so that monorail crane executes corresponding actions.

One of relay output group, components and parts of the Vehicle Controller, by J1-J6 totally 6 relay groups into respectively single track Hang forward relay, monorail crane reverse relay, damper brake band-type brake relay, damper brake declutch relay, suspension hook rise hook relay Device, suspension hook drop hook relay, declutch for controlling monorail crane advance, monorail crane retrogressing, damper brake band-type brake, damper brake, suspension hook liter Hook, suspension hook drop 6 kinds of operations of hook；

One of run indicator, components and parts of the Vehicle Controller, are used to refer to the ruuning situation for being controlled monorail crane；

One of power supply, components and parts of the Vehicle Controller, are the Vehicle Controller electric energy；

One of switch, components and parts of the Vehicle Controller, described vehicle-mounted to open and close by connecting, cutting off the power supply Controller.

2. monorail crane intelligent sound remote control unit as claimed in claim 1, it is characterised in that through the voice of the remote control Feature identification, can pick out " advance ", " retrogressing ", " band-type brake ", " declutch ", " rise hook ", " drop hook ", " " 7 kinds nonspecific for stopping The voice of people, and this 7 kinds of voices are converted into corresponding numerical control instruction are transferred to Vehicle Controller, it is achieved that monorail crane Voice wireless remote control.

3. monorail crane intelligent sound remote control unit as claimed in claim 1, it is characterised in that in the monorail crane intelligent sound Remote control unit, can not only realize the wireless remote control of the phonetic order of 7 kinds of unspecified persons, while the nothing of 7 buttons can also be realized Line remote control, it is achieved that the wireless remote control of voice and key combination.

4. monorail crane intelligent sound remote control unit as claimed in claim 1, it is characterised in that in the sensor detection of declutching To monorail crane damper brake in declutch state when, the remote control voice can be allowed or by key control monorail crane operation.

5. monorail crane intelligent sound remote control unit as claimed in claim 1, it is characterised in that " advance ", " retrogressing ", " embrace Lock ", " declutch ", " rise hook ", " drop hook " arbitrary phonetic order, or when pressing the arbitrary buttons of F1-F6, the Vehicle Controller point Not Kong Zhi the corresponding relays of J1-J6, control monorail crane executes corresponding advance, retrogressing, damper brake band-type brake, damper brake and declutches, hangs Hook rises hook, suspension hook drop 6 kinds of operations of hook, " stoppings " and phonetic order or when pressing F7 buttons, stop above-mentioned being carrying out times One 6 kinds of operations.

6. monorail crane intelligent sound remote control unit as claimed in claim 1, it is characterised in that in the single track handling starting stage, Send " declutching " instruction first or after pressing F4 buttons, the damper brake of monorail crane is declutched, it is seen that the remote control declutches Display lamp bright after just can carry out the control to monorail crane, can now send " advance ", " retrogressing ", " band-type brake ", " declutch ", " liter hook ", " drop hook " arbitrary phonetic order, or the arbitrary buttons of F1-F6 are pressed, the monorail crane intelligent sound remote control unit control Monorail crane processed executes corresponding operation, and when monorail crane executes instruction control, lower a moment control instruction is necessary for " stopping " voice Instruction or F7 buttons, stop current work, and other control instructions are invalid, after stopped current execution operation, Fang Kejin Another operation operation capable, it is ensured that the safety of controlled monorail crane and operator.