A short message mode tower crane remote locking controller

Abstract

The application provides a short message mode tower crane remote locking controller, and belongs to the technical field of construction hoisting machinery control, which comprises a bus communication module, a central processing module, a record storage module, a power module and a mobile communication module, the record storage module and the mobile communication module are connected with the central processing module, the central processing module is connected with a frequency converter system of the tower crane through the bus communication module, the power module is connected with the bus communication module, the central processing module, the record storage module and the mobile communication module for power supply, the controller is arranged on the tower crane, and a user remotely locks, unlocks and positions the tower crane through the controller.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of construction hoisting machinery control, and in particular to a short message mode tower crane remote locking controller. BACKGROUND

[0002] The tower crane (hereinafter referred to as tower crane) as an important hoisting and setting up hoisting machinery equipment in the construction site, is mainly used for hoisting raw materials on the construction site, and is one of the indispensable hoisting equipment on the construction site. At present, due to the fact that some tower crane manufacturers adopt installment purchase mode, the situation that customers do not pay the final payment in time and the situation that customers do not pay the rent of the tower crane equipment rented by the tower crane leasing company in time occur, which is not conducive to the capital recovery of the tower crane manufacturers and the tower crane leasing company, and there is a lack of powerful control means for the tower crane.

[0003] At present, the mainstream tower crane remote locking mode is to rely on the Internet of Things platform to issue control instructions to the locking controller, the hardware scheme of the locking controller adopts the PLC implementation mode, the control mode adopts the immediate locking, and the controller does not establish a heartbeat protection mechanism with the frequency converter control system. The above situation is prone to cause the Internet of Things platform to fail or stop working and unable to lock, the immediate locking causes the hoisting heavy object to be suspended in the air, which is not conducive to the safety operation on site, there is no heartbeat protection mechanism, and it is easy to artificially disassemble and escape from the remote locking, which is not conducive to the risk control of the tower crane equipment.

[0004] The above prior art can realize the tower crane remote locking demand, but due to the excessive dependence on the Internet of Things platform to issue locking instructions, once the Internet of Things platform fails or stops working, the remote locking cannot be performed, and the hardware scheme of the locking controller adopts the PLC implementation mode, which has the disadvantages of large size, complex hardware, high cost, and the like, and the interaction mode with the frequency converter control system is immediate locking, which may cause the construction heavy object to be suspended in the air, resulting in the need to stop the on-site operation to ensure safety, and the locking controller does not adopt the heartbeat communication mechanism to interact with the frequency converter control system, which causes the locking controller to be easily disassembled and escaped from the remote locking, which is not conducive to the maintenance of the interests of the tower crane manufacturers and the tower crane leasing company. SUMMARY

[0005] The present application aims to provide a short message mode tower crane remote locking controller, which solves the technical problems that the existing remote locking relies on the Internet of Things platform, which may cause the locking instructions to be unable to be issued due to platform failure or stop working, the PLC controller hardware structure mode causes large size, complex hardware, high cost, the immediate locking mode causes the heavy object to be suspended for control, which affects the safety of the construction environment, there is no heartbeat mechanism established with the frequency converter control system, and the locking terminal is artificially disassembled to escape from the remote locking.

[0006] In order to achieve the above-mentioned purpose, the technical scheme adopted by the present application is as follows:

[0007] The SMS mode tower crane remote locking controller comprises a bus communication module, a central processing module, a record storage module, a power module and a mobile communication module, the record storage module and the mobile communication module are connected with the central processing module, the central processing module is connected with the frequency converter system of the tower crane through the bus communication module, the power module is connected with the bus communication module, the central processing module, the record storage module and the mobile communication module for power supply, the controller is arranged on the tower crane, and the user remotely locks, unlocks and positions the tower crane through the controller.

[0008] Further, the bus communication module comprises a CAN bus communication submodule and a 485 bus communication submodule, the bus communication module supports CAN bus and 485 bus to communicate with the frequency converter system, wherein the 485 bus protocol is modbus, the CAN bus communication protocol is CANopen, the CAN bus communication submodule and the 485 bus communication submodule adopt TVS surge protection and PPTC self-recovery fuse hardware protection mode, in addition to command interaction, the CAN bus communication submodule and the 485 bus communication submodule also establish a heartbeat connection with the frequency converter system, and once the heartbeat connection is not detected within a specified time, it is considered that the locking controller is disassembled, and the frequency converter system automatically enters the locking processing flow.

[0009] 3. The SMS mode tower crane remote locking controller according to claim 2, wherein the central processing module is responsible for overall logical judgment, communication interaction, data processing and storage management, and completes the analysis of the corresponding SMS command into the frequency converter system command in the form of CAN bus and 485 bus and the heartbeat communication management and maintenance.

[0010] Further, the record storage module is responsible for real-time recording of SMS communication commands and frequency converter communication commands, the record storage module functions as a black box to facilitate tracking of command history operation traces and realization of supervision ability.

[0011] Further, the power module comprises a main power module, a chip power module and a mobile communication power module, wherein the main power module converts 12V power into 5V power, the chip power module converts 5V power into 3.3V power for chip use, and the mobile communication power module converts 5V power into 3.9V power for mobile communication module use.

[0012] Further, the module of the mobile communication module is EC200U-CN, which is responsible for SMS sending and receiving processing and tower crane position positioning, and the mobile communication module communication network supports telecom, mobile and unicom, and the position positioning supports GPS and Beidou.

[0013] Further, the specific process of locking the tower crane is as follows:

[0014] The user remotely edits a locking short message, the locking short message content is lock, is sent to the telephone number of the tower crane locking controller which needs to be currently locked, the locking controller receives the locking short message and analyzes, forms a locking command and sends to the frequency converter system through the 485 bus or CAN bus, the frequency converter system receives the locking instruction and replies to the locking controller that the locking command has been received, the locking controller replies the locking short message content vfd lock to the locking user, at the same time, the frequency converter receives the locking instruction and immediately reduces the lifting action to the minimum speed, and stops the lifting action immediately after reducing the speed for 2 hours, and completes the whole locking control process.

[0015] Further, the specific process that the tower crane is unlocked is as follows:

[0016] The user remotely edits an unlocking short message, the short message content is unlock, is sent to the telephone number of the tower crane locking controller which needs to be currently unlocked, the locking controller receives the unlocking short message and analyzes, forms an unlocking command and sends to the frequency converter system through the 485 bus or CAN bus, the frequency converter system receives the unlocking instruction and replies to the locking controller that the unlocking command has been received, the locking controller replies the locking short message content vfd unlock to the locking user, at the same time, the frequency converter receives the unlocking instruction and immediately executes unlocking, restores the normal operation of the tower crane, and completes the whole unlocking control process.

[0017] Further, the specific process that the tower crane is positioned is as follows:

[0018] The user remotely edits a positioning short message, the short message content is gps, is sent to the telephone number of the tower crane locking controller which needs to be currently positioned, the locking controller receives the positioning short message and analyzes, forms a short message reply to the user with the longitude and latitude positioning information of the current tower crane, the reply short message format is logitude: xxx.xxxxxx latitude: xxx.xxxxxx, and the whole positioning control process is completed.

[0019] Further, when the tower crane is locked, after receiving the locking, when it is detected that the tower crane has an object hoisted, the speed is reduced, then the object below is automatically lowered to the ground, then the force rope is received, and finally, it is stopped.

[0020] The application has the following beneficial effects due to the adoption of the above technical scheme:

[0021] The present application solves the problem that the command remote locking cannot be issued due to the failure or stoppage of the Internet of Things platform by issuing the instruction through the short message without a special platform, solves the problems of bulky, complex hardware and high success rate of the hardware scheme of the PLC type lock controller by customizing the lock controller hardware through the embedded scheme, solves the danger that the heavy object cannot be suspended below by the immediate locking mode through the lock mode of reducing the speed first and then stopping, and solves the risk of escaping the lock control by manually removing the lock controller through the heartbeat protection mechanism established with the frequency converter control system. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is the main board structure diagram of the controller of the present application;

[0023] Figure 2 is the lock flowchart of the present application;

[0024] Figure 3 is the unlock flowchart of the present application;

[0025] Figure 4 is the positioning flowchart of the present application.

[0026] In the drawings, 1 is a bus communication module, 101 is a CAN bus communication submodule, 102 is a 485 bus communication submodule, 2 is a central processing module, 3 is a record storage module, 4 is a power module, 401 is a main power module, 402 is a chip power module, 403 is a mobile communication power module, and 5 is a mobile communication module. DETAILED DESCRIPTION

[0027] To make the purpose, technical scheme and advantages of the present application clearer and more apparent, the present application is further described in detail below with reference to the drawings and preferred embodiments. However, it should be noted that many details in the description are only for the reader to have a thorough understanding of one or more aspects of the present application, and the aspects of the present application can be realized without these specific details.

[0028] A short message type tower crane remote locking controller, comprising a bus communication module 1, a power module 4, a central processing module 2, a record storage module 3, and a mobile communication module 5, as shown in the main board structure diagram Figure 1 .

[0029] The label 1 is a bus communication module, including 2 bus communication sub-modules, which are CAN bus communication sub-module with label 101 and 485 bus communication sub-module with label 102, so as to support CAN bus and 485 bus to communicate with the frequency converter system, improve the diversification characteristics of the bus, wherein the 485 bus protocol is modbus, the chip scheme is SP485EEN, the CAN bus communication protocol is CANopen, the chip scheme is SN65HVD1050DR, both of the two buses adopt TVS surge protection and PPTC self-recovery fuse hardware protection scheme, further ensuring the stability of the bus. In addition to command interaction, the bus also establishes a heartbeat connection with the frequency converter system, and if the heartbeat connection is not detected within a specified time, it is considered that the lock controller is disassembled, and the frequency converter system automatically enters the lock processing flow.

[0030] (2) The central processing module 2 is the brain processing core as the host, the chip scheme is STM32F405RGT6, responsible for overall logical judgment, communication interaction, data processing, storage management and the like, such as completing the corresponding SMS command analysis into the corresponding frequency converter system command in the form of CAN bus and 485 bus and heartbeat communication management and maintenance and the like.

[0031] (3) The record storage module 3 is mainly responsible for real-time recording of SMS communication commands and frequency converter communication commands, the chip scheme is W25Q128JVSSIQ, as a black box function, facilitating tracking of command history operation track and strengthening of supervision ability.

[0032] (4) The power module 4 includes a main power module with label 401, a chip power module with label 402, and a mobile communication power module with label 403, wherein the main power module mainly completes conversion of 12V power supply to 5V power supply, facilitating secondary conversion of other power supplies, the chip scheme is LM2596S-5.0, the chip power module mainly completes conversion of 5V power supply to 3.3V power supply for chip use, the chip scheme is AMS1117-3.3, and the mobile communication power module mainly completes conversion of 5V power supply to 3.9V power supply for mobile communication module use, the chip scheme is MIC29302WU.

[0033] (5) The module scheme of the mobile communication module 5 is EC200U-CN, mainly responsible for SMS sending and receiving processing and tower position positioning, wherein the communication network simultaneously supports telecom, mobile and unicom, and the position positioning supports GPS and Beidou.

[0034] The system adopts an embedded hardware solution, supporting communication and interaction with the inverter system via both 485 and CAN buses. It features diverse bus options, supports establishing a heartbeat connection with the inverter system to prevent human interference and evasion of locking. It supports three SMS commands: locking, unlocking, and positioning. It does not rely on an IoT platform for locking, supports flexible locking delay timing to prevent heavy objects from being suspended during immediate locking, and supports communication command recording for easy review of command operation processes. It has advantages such as small size, simple and reliable hardware, and low cost.

[0035] The SMS-based tower crane remote locking controller supports three operation functions: locking, unlocking, and positioning of the tower crane. The specific control process is as follows.

[0036] As attached Figure 2 The diagram illustrates the crane locking process. Specifically, a locking SMS message containing the word "lock" is sent to the phone number of the tower crane locking controller that needs to be locked. The controller receives the message, parses it, and generates a locking command, which is then sent to the frequency converter system via the RS-485 or CAN bus. Upon receiving the locking command, the frequency converter system replies to the controller, confirming receipt. The controller then replies with the message "vfd lock" to the user. Simultaneously, upon receiving the locking command, the frequency converter immediately reduces the lifting speed to the minimum, and after two hours of deceleration, immediately stops the lifting operation, completing the entire locking control process.

[0037] As attached Figure 3 The diagram illustrates the unlocking process. Specifically, an unlock SMS message containing the word "unlock" is sent to the phone number of the tower crane's lock controller that needs unlocking. The lock controller receives the message, parses it, and generates an unlock command, which is then sent to the frequency converter system via the RS-485 or CAN bus. Upon receiving the unlock command, the frequency converter system replies to the lock controller, which in turn replies with the message "vfd unlock" to the user. Simultaneously, the frequency converter, upon receiving the unlock command, immediately executes the unlocking procedure, restoring the tower crane to normal operation and completing the entire unlocking control process.

[0038] As attached Figure 4 The diagram illustrates the positioning process. Specifically, a positioning SMS message is edited, containing the word "gps," and sent to the phone number of the tower crane's lock controller. Upon receiving the SMS, the lock controller parses it and generates a reply SMS with the tower crane's latitude and longitude coordinates, formatted as "logitude:xxx.xxxxxx latitude:xxx.xxxxxx," thus completing the entire positioning control process.

[0039] The lock controller hardware is customized through an embedded scheme, the problems of bulky, complex hardware and high success rate of the lock hardware scheme in the PLC mode are solved, the lock mode of first reducing speed and then stopping solves the danger that the heavy object cannot be lowered in the immediate lock mode, and the heartbeat protection mechanism is established with the frequency converter control system to solve the risk of escaping the lock control by manually removing the lock controller.

[0040] In view of the problems that the existing remote lock depends on the Internet of Things platform, the platform failure or stoppage may cause the lock instruction to be unable to be issued, the PLC controller hardware structure mode brings the problems of large size, complex hardware and high cost, the immediate lock mode causes the heavy object suspension control to affect the construction environment safety, the heartbeat mechanism is not established with the frequency converter control system, and the lock terminal is manually disassembled to escape the remote lock, an embedded hardware scheme terminal controller based on the heartbeat mechanism of the SMS remote lock is provided to solve the above problems.

[0041] The above only describes the preferred embodiments of the present application, and it should be noted that the ordinary skilled in the art can make several improvements and refinements without departing from the principles of the present application, and these improvements and refinements should also be considered as the protection scope of the present application.

Claims

1. A tower crane remote locking controller using SMS messaging, characterized in that: It comprises a bus communication module, a central processing module, a record storage module, a power module and a mobile communication module, the record storage module and the mobile communication module are connected with the central processing module, the central processing module is connected with the frequency converter system of the tower crane through the bus communication module, the power module is connected with the bus communication module, the central processing module, the record storage module and the mobile communication module for power supply, the controller is arranged on the tower crane, and the user remotely locks, unlocks and positions the tower crane through the controller; The specific process of locking the tower crane is as follows: The user remotely edits a locking message, the locking message content is lock, is sent to the telephone number of the tower crane locking controller currently needing to be locked, the locking controller receives the locking message and analyzes it, forms a locking command, and sends it to the frequency converter system through the 485 bus or the CAN bus, when the frequency converter system receives the locking instruction, it will reply to the locking controller that the locking command has been received, the locking controller will reply to the locking user that the locking message content is vfd lock, and meanwhile, when the frequency converter receives the locking instruction, it will immediately reduce the lifting action to the minimum speed, and after 2 hours of speed reduction, it will immediately stop the lifting action, and the whole locking control process is completed. The specific process of unlocking the tower crane is as follows: The user remotely edits an unlocking message, the message content is unlock, is sent to the telephone number of the tower crane locking controller currently needing to be unlocked, the locking controller receives the unlocking message and analyzes it, forms an unlocking command, and sends it to the frequency converter system through the 485 bus or the CAN bus, when the frequency converter system receives the unlocking instruction, it will reply to the locking controller that the unlocking command has been received, the locking controller will reply to the locking user that the locking message content is vfd unlock, and meanwhile, when the frequency converter receives the unlocking instruction, it will immediately execute the unlocking, and restore the normal operation of the tower crane, and the whole unlocking control process is completed. The specific process of positioning the tower crane is as follows: The user remotely edits a positioning message, the message content is gps, is sent to the telephone number of the tower crane locking controller currently needing to be positioned, the locking controller receives the positioning message and analyzes it, forms the longitude and latitude positioning information of the current tower crane into a message, and replies to the user, the reply message format is logitude: xxx.xxxxxx latitude: xxx.xxxxxx, and the whole positioning control process is completed.

2. The short message mode tower crane remote locking controller according to claim 1, characterized in that: The bus communication module comprises a CAN bus communication submodule and a 485 bus communication submodule, the bus communication module supports CAN bus and 485 bus communication interaction with the frequency converter system, wherein the 485 bus protocol is modbus, and the CAN bus communication protocol is CANopen, the CAN bus communication submodule and the 485 bus communication submodule adopt TVS surge protection and PPTC self-recovery fuse hardware protection mode, in addition to command interaction, the CAN bus communication submodule and the 485 bus communication submodule also establish a heartbeat connection with the frequency converter system, and once the heartbeat connection is not detected within a specified time, it is considered that the locking controller is disassembled, and the frequency converter system automatically enters the locking processing flow.

3. The short message mode tower crane remote locking controller according to claim 2, characterized in that: The central processing module is responsible for overall logical judgment, communication interaction, data processing and storage management, and completes the analysis of corresponding short message commands into corresponding frequency converter system commands in the form of CAN bus and 485 bus and heartbeat communication management and maintenance.

4. The short message mode tower crane remote locking controller according to claim 3, characterized in that: The record storage module is responsible for real-time recording of short message communication commands and frequency converter communication commands. The record storage module functions as a black box, facilitating the tracking of command history operation traces and the realization of monitoring capabilities.

5. The short message mode tower crane remote locking controller according to claim 4, characterized in that: The power module includes a main power module, a chip power module and a mobile communication power module. The main power module converts 12V power into 5V power, the chip power module converts 5V power into 3.3V power for chip use, and the mobile communication power module converts 5V power into 3.9V power for mobile communication module use.

6. The short message mode tower crane remote locking controller according to claim 5, characterized in that: The module of the mobile communication module is EC200U-CN, responsible for short message sending and receiving processing and tower crane position positioning. The mobile communication module communication network supports telecom, mobile and unicom, and the position positioning supports GPS and Beidou.

7. The short message mode tower crane remote locking controller according to claim 1, characterized in that: When the tower crane is locked, after receiving the lock signal, when it is detected that there is an object on the tower crane, the speed is first reduced, then the object is automatically lowered to the ground, then the force rope is received, and finally it is stopped.

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