Wireless remote control method and system for mining winch

Abstract

The invention discloses a wireless remote control method and system for a mining winch, and belongs to the technical field of mining winch control. Sending network access broadcast information, and sending and receiving remote control station information; if the registration information and the corresponding identity information of the remote control station are received, verifying and judging the highest authority of the remote control station; sending and receiving an instruction for controlling the winch and winch state information; the real-time state of the remote control station is judged, a state query request is sent to the registered remote control station regularly, and the remote control station sends current state information feedback after receiving the state query request; and the remote control station with the highest authority sends a control instruction, and then the winch executes the instruction after receiving the instruction and carrying out comprehensive judgment. The remote control station is arranged and matched with the base station to achieve wireless communication, operation of the winch is directly controlled on site through the remote control station, and the operation state of the winch is mastered more detailedly.

Description

Technical Field

[0001] The invention belongs to the technical field of mine winch control, communication and signal equipment, and in particular relates to a mine winch wireless remote control method and system. Background Art

[0002] Traditional infinite rope winch transportation has the advantages of simple structure, high reliability, flexible layout and strong practicality. From a mechanical point of view, the winch system is generally divided into winch and shuttle car. The winch is usually driven by an electric motor, which rotates the drum through a series of transmission mechanisms to move the wire rope wrapped around it, thereby completing the lifting or dragging task. The shuttle car is a special vehicle used for underground transportation in coal mines. It is mainly responsible for transporting materials in the tunnel. The winch and shuttle car are connected by wire ropes. When the wire rope moves, it drives the shuttle car to move, thereby completing the underground material transportation operation.

[0003] Due to the characteristics of the winch, during transportation operations, the existing method is to use an operating console to control the winch to pull the wire rope to drive the remote shuttle car to operate. Since the operating console needs to be connected to the electrical part of the winch and is usually arranged near the winch, the winch cannot know the remote shuttle car and the surrounding environment when it is driven through the operating console. The traditional solution is to set up a follower position and lay a leaky cable along the track. The follower communicates with the driver through a walkie-talkie, and the driver drives according to the feedback information from the follower. This requires extremely high personal qualities and cooperation of the driver and the follower. Sometimes mishearing, mistransmission, and misdriving may occur, resulting in casualties.

[0004] Therefore, it is necessary to design a wireless remote control method and system for a mining winch in view of the above problems. Summary of the invention

[0005] The purpose of the present invention is to provide a method and system for wireless remote control of a mining winch in order to solve the problem that the existing endless rope driving position is fixed and the driver cannot directly grasp the surrounding environment of the shuttle car. This method realizes wireless communication, controls the movement of the shuttle car within the line of sight, and can display the operating parameters and protection parameters of the shuttle car in real time. By implementing different detection and control strategies for the wireless link, the control authority of the remote control console and the handheld device in the system is automatically and dynamically allocated, which can prevent the signal from being sent by mistake, ensure correct and stable control, and optimize the job configuration to meet the requirements of less manpower in the mine. It is specifically achieved through the following technologies: A wireless remote control method for a mining winch, comprising: Receive and input all remote control station information; Send network broadcast information, send and receive remote control station information; if the registration information and corresponding identity information of the remote control station are received, verify and determine the highest authority of the remote control station; there is only one remote control station with the highest authority; Send and receive winch control commands and winch status information; Determine the real-time status of the remote control station, and regularly send a status query request to the registered remote control station. After receiving the status query request, the remote control station sends current status information feedback; if no status information feedback is received, the remote control station is disconnected and a stop command is output to stop the winch, and the network broadcast is restarted; The remote control station with the highest authority issues a control command, and the winch electronic control system receives the command and executes the command after making a comprehensive judgment.

[0006] Furthermore, when determining the real-time status of the remote control station, it includes: If no status information feedback is received from the remote control station, the remote control station is registered as "unresponsive" once; If the number of "no response" status of the remote control station reaches a predetermined number, it is recorded that the corresponding remote control station and the base station are in a "lost connection" state.

[0007] Furthermore, a method for wireless remote control of a mining winch also includes a signal misjudgment prevention process, in which a CRC16 check is performed on the signal sent by the remote control station to determine whether it is correct.

[0008] Furthermore, if the registration information of the remote control station is received, the information of the remote control station is verified, registered and updated.

[0009] Furthermore, a method for wireless remote control of a mining winch also includes a system initialization process and a system self-check process.

[0010] Furthermore, if multiple remote control stations are detected before the winch is operated, an alarm is triggered and the winch is prohibited from starting; If multiple remote control stations are detected during winch operation, the winch will be automatically stopped.

[0011] Furthermore, the remote control station can control the movement of the shuttle car connected to the winch through the stepless rope within the visual range, and can display the operating parameters and protection parameters of the shuttle car in real time.

[0012] A mine winch wireless remote control system, comprising: Remote control console, used for wireless control of winch operation, directly displays winch status and sends and receives winch status; The base station is used to send network broadcasts, monitor and determine the real-time status of each remote control station, send parking instructions, and process, receive and send data signals; Handset, used to receive and send data signals and voice signals; Leaky cable, used for transmission of data and voice signals.

[0013] Furthermore, the remote control station comprises: The main control unit is used for voice and data time slot processing, data service packetization and subpackaging, and wireless link detection; Voice signal unit, used for voice signal acquisition, encoding and decoding, and signal power adjustment; Keyboard unit, used to collect signals from various buttons and cranks of the remote control console; Data storage unit, used to record and store basic parameters of wireless channels, remote control station identity, winch faults; The display unit is used to display in real time the winch status data and wireless link status successfully parsed by the main control unit.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The invention proposes a method and system for wireless remote control of a mining winch. By setting up a remote control station and cooperating with a base station, wireless communication is realized, the movement of the shuttle car is controlled within the line of sight, and link detection loss protection is established to ensure the safety of remote control driving of the winch.

[0015] The invention proposes a wireless remote control method and system for a mining winch, which can directly control the operation of the winch on site through a remote control console, and grasp the operating status of the winch in detail, thereby eliminating the complicated and tedious communication links between the winch driver and the vehicle followers, and can effectively help coal mines reduce staff and increase efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 This is a flow chart of a wireless remote control method for a mining winch according to an embodiment of the present invention; Figure 2 This is a schematic structural diagram of a wireless remote control system for a mining winch according to an embodiment of the present invention; Figure 3 This is a unit module diagram of a remote control station in a wireless remote control method for a mining winch according to an embodiment of the present invention. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] like Figure 1 As shown, the present invention provides a wireless remote control method for a mining winch, comprising: Step 1: The base station receives and enters all remote control station information.

[0020] Step 2: The base station sends a network access broadcast message, and the remote control station that receives the network access broadcast message responds. Then the base station receives the registration information and identity information of the responding remote control station and enters it. The base station verifies and determines the entered registration information and identity information of the remote control station, and confirms the highest authority of the remote control station, wherein there is only one remote control station with the highest authority.

[0021] Step 3: The remote control station sends a command to the winch, and the winch sends winch status information after receiving the command, and the remote control station receives the winch status information sent by the winch.

[0022] Step 4: To determine the real-time status of the remote control station, the base station periodically sends a status query request to the registered remote control station. After receiving the status query request, the remote control station sends the current status information feedback. If no status information feedback is received, the remote control station is disconnected and a stop command is output to stop the winch, and then the network broadcast is restarted.

[0023] Step 5: The remote control station with the highest authority issues a control command to the winch, and the winch executes the control command after making a comprehensive judgment after receiving the control command.

[0024] It should be noted that the comprehensive judgment performed by the winch mentioned in the present invention after receiving the control command can be set according to actual needs, which belongs to the mature technology in this field and will not be elaborated in detail in the present invention.

[0025] Specifically, the base station can send control instructions, such as parking instructions, to the remote control station through the leaky cable. The remote control station sends data signals and voice signals to the base station through the leaky cable. The remote control station also supports voice communication with the base station and the handset.

[0026] Specifically, when determining the real-time status of the remote control station, if no status information feedback from the remote control station is received, the remote control station is registered as "no response" once. If the number of "no response" states of the remote control station reaches a predetermined number, the remote control station and the base station are recorded as "lost connection" states.

[0027] Specifically, the embodiment of the present invention also provides a signal misjudgment prevention process, which performs a 16-bit cyclic redundancy check (CRC) on the signal sent by the remote control station, which can effectively detect errors in the data transmission process, improve the reliability of communication, and ensure the accurate transmission and execution of remote control commands even in harsh communication environments.

[0028] Specifically, the system initialization process and system self-check process provided by the embodiments of the present invention play an important role in ensuring the normal operation of the system, improving the stability and reliability of the system, and ensuring the security of the system.

[0029] Specifically, if multiple remote control stations are detected before the winch is running, an alarm is issued and the winch is prohibited from starting; if multiple remote control stations are detected during the winch operation, the winch is actively stopped.

[0030] Specifically, the remote control station can control the movement of the shuttle car connected to the winch through the stepless rope within the visual range, and can display the operating parameters and protection parameters of the shuttle car in real time.

[0031] The embodiment of the present invention also provides a wireless remote control system for a mining winch, such as Figure 2 As shown, it is composed of a remote control station, a base station, a leaky cable, and a handset. In an embodiment of the present invention, after the system is powered on, the base station periodically broadcasts and announces time slots, which are divided into: data time slots, emergency stop time slots, and voice time slots; the remote control station actively responds when receiving the data time slot signaling, and the base station records the remote control station that actively responds, and successfully registers before broadcasting the remote control station in the next data time slot. In this network state, the handset sends an emergency stop command after receiving the emergency stop time slot signaling, and cannot send other command data. The handset sends voice after receiving the voice time slot signaling, and cannot send other command data. The leaky cable is the link device of the system, which is used for the transmission and processing of data signals and voice signals.

[0032] Specifically, after the remote control station successfully registers, the base station begins to periodically broadcast the identity of the remote control station and the winch status in the next data time slot. After receiving the data, the remote control station displays the winch status and sends control instructions to the base station. In the embodiment of the present invention, the system has only one remote control station with the highest authority. Once other remote control stations are connected to the network, the base station can automatically identify the legitimacy of the remote control station identity and alarm, and send the alarm information in the data time slot. After receiving it, the remote control station displays a prompt to the user.

[0033] Specifically, the system periodically monitors the wireless link, and the base station responds to the monitoring results in a graded manner. When the base station receives a reply from the remote control station but the data is erroneous and the duration exceeds the threshold value T1, the base station outputs a stop signal; when the base station does not receive the reply data from the remote control station and the duration exceeds the threshold value T2, the base station outputs a stop signal; similarly, when the remote control station receives data from the base station but the data is erroneous and the duration exceeds the threshold value T1, the remote control station issues an alarm and displays; when the remote control station does not receive data from the base station and the duration exceeds the threshold value T2, the remote control station issues an alarm and displays; where the wireless link detection threshold value T1>T2.

[0034] Specifically, after the remote control station is successfully registered, when the electronic control device is in remote control mode, the following personnel can directly control the winch operation (forward operation, reverse operation, parking, emergency stop, acceleration, deceleration, etc.) through the remote control station. In addition, the remote control station also supports voice communication with the base station and handheld device in the system.

[0035] See also Figure 3 , the remote control station includes: The main control unit is used for voice and data time slot processing, data service packetization and subpackaging, and wireless link detection; Voice signal unit, used for voice signal acquisition, encoding and decoding, and signal power adjustment; Keyboard unit, used to collect signals from various buttons and cranks of the remote control console; Data storage unit, used to record and store basic parameters of wireless channels, remote control station identity, winch faults; The display unit is used to display in real time the winch status data and wireless link status successfully parsed by the main control unit.

[0036] The embodiment of the present invention provides a mine winch wireless remote control system, and the specific implementation process thereof includes: when the mine winch wireless remote control system is started, the base station first sends a network access broadcast signal, and after the remote control station receives the network access broadcast, it applies for network access according to preset parameters and identity information. The main control unit of the remote control station collects the state data of the winch in real time, and the data is processed by the internal processing of the remote control station, including voice, data time slot processing and data service packetization and subpackaging, and is ready for wireless transmission. The remote control station sends the processed data signal and voice signal to the base station through a leaky cable. After receiving the signal sent by the remote control station, the base station analyzes and processes it. According to the processing result, the base station can send corresponding control instructions, such as parking instructions, and transmit them back to the remote control station through the leaky cable. The handheld device can receive data signals and voice signals from the base station for remote monitoring and communication. The display unit of the remote control station displays the state data of the winch and the wireless link status in real time, and the staff can input control instructions such as start, stop, accelerate, decelerate, etc. through the keyboard unit to remotely control the work of the winch.

[0037] Finally, it should be pointed out that the above specific embodiments are only representative examples of the present invention. Obviously, the present invention is not limited to the above specific embodiments, and there are many variations. Any simple modification, equivalent changes and modifications made to the above specific embodiments based on the technical essence of the present invention should be considered to belong to the protection scope of the present invention.

Claims

1. A method for wireless remote control of a mining winch, characterized in that: include: Receive and input all remote control station information; Send network broadcast information, send and receive remote control station information; If the registration information and corresponding identity information of the remote control station are received, verifying and determining the highest authority of the remote control station; There is only one remote control station with the highest authority; Send and receive winch control commands and winch status information; Determine the real-time status of the remote control station, and regularly send a status query request to the registered remote control station. After receiving the status query request, the remote control station sends current status information feedback; if no status information feedback is received, the remote control station is disconnected and a stop command is output to stop the winch, and the network broadcast is restarted; The remote control station with the highest authority issues a control command, and the winch executes the command after receiving the command through comprehensive judgment.

2. A method for wireless remote control of a mining winch according to claim 1, characterized in that: Determining the real-time status of the remote control station includes: If no status information feedback is received from the remote control station, the remote control station is registered as "unresponsive" once; If the number of "no response" status of the remote control station reaches a predetermined number of times, it is recorded that the corresponding remote control station and the base station are in a "lost connection" state.

3. A mine winch wireless remote control method according to claim 1, characterized in that: The method also includes a signal misjudgment prevention process, in which a CRC16 check is performed on the signal sent by the remote control station to determine whether it is correct.

4. A method for wireless remote control of a mining winch according to claim 1, characterized in that: If the registration information of the remote control station is received, the information of the remote control station is verified, registered and updated.

5. A method for wireless remote control of a mining winch according to claim 1, characterized in that: It also includes the system initialization process and system self-check process.

6. A method for wireless remote control of a mining winch according to claim 1, characterized in that: Also includes: If multiple remote control stations are detected before the winch is running, an alarm will be sounded and the winch will be prohibited from starting; If multiple remote control stations are detected during winch operation, the winch will be stopped automatically.

7. A method for wireless remote control of a mining winch according to claim 1, characterized in that: Also includes: The remote control station can control the movement of the shuttle car connected to the winch through the stepless rope within the visual range, and can display the operating parameters and protection parameters of the shuttle car in real time.

8. A wireless remote control system for a mining winch, characterized in that: include: Remote control console, used for wireless control of winch operation, directly displays winch status and sends and receives winch status; The base station is used to send network broadcasts, monitor and determine the real-time status of each remote control station, send parking instructions, and process, receive and send data signals; Handset, used to receive and send data signals and voice signals; Leaky cable, used for transmission of data and voice signals.

9. A mine winch wireless remote control system according to claim 8, characterized in that: The remote control station comprises: The main control unit is used for voice and data time slot processing, data service packetization and subpackaging, and wireless link detection; Voice signal unit, used for voice signal acquisition, encoding and decoding, and signal power adjustment; Keyboard unit, used to collect signals from various buttons and cranks of the remote control console; Data storage unit, used to record and store basic parameters of wireless channels, remote control station identity, winch faults; Display unit: used to display in real time the winch status data and wireless link status successfully parsed by the main control unit.

Images