Wireless remote control system of concrete wet spraying trolley

Abstract

The utility model discloses a wireless remote control system for a concrete wet spraying trolley, which relates to the technical field of engineering machinery and comprises a wireless transmitting system and a wireless receiving system. Wherein the wireless receiving system is arranged in an electric control cabinet of the concrete wet spraying trolley and is connected with a PLC (Programmable Logic Controller) module on the concrete wet spraying trolley; the wireless transmitting system is used for receiving an operation instruction input by an operator and sending the operation instruction to the wireless receiving system; and the wireless receiving system is used for sending the received operation instruction to the PLC module. According to the utility model, the conventional concrete wet spraying trolley is improved, and the wireless remote control system is added, so that the concrete wet spraying trolley can be remotely operated, the operation control is not limited in a cab any more, the operation view of operators is greatly increased, the occurrence of misoperation is reduced, and the working efficiency is improved. And other personnel are not needed to assist and guide the operation, so that convenience and manpower saving are realized.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering machinery, in particular to an industrial wireless remote control system applied to a concrete wet spraying trolley. Background Art

[0002] As a highly efficient tunnel support equipment, the concrete wet spraying trolley is widely used in various tunnel projects and plays an important role in mechanized tunnel construction. It uses intelligent mechanical arms and spraying systems to accurately spray concrete onto the tunnel rock surface to form a solid support layer.

[0003] However, due to the large size of the concrete spraying trolley and the many obstructions, the driver cannot fully understand the situation around the vehicle through the existing mirrors and other observation measures during operation, which can easily lead to operational errors. Moreover, during the operation, multiple people need to use walkie-talkies to assist and guide, which is not only inconvenient, but also wastes manpower. Summary of the invention

[0004] The purpose of the utility model is to provide a wireless remote control system for a concrete wet spraying trolley, which can realize remote operation of the concrete wet spraying trolley, greatly increase the operator's operating field of vision, reduce the occurrence of misoperation, and do not require other personnel to assist in guiding the operation, which is convenient and saves manpower.

[0005] To achieve the above purpose, the utility model provides the following solutions:

[0006] In a first aspect, the utility model provides a wireless remote control system for a concrete wet spraying trolley, comprising a wireless transmitting system and a wireless receiving system; the wireless transmitting system and the wireless receiving system are wirelessly connected; wherein,

[0007] The wireless transmission system includes a first antenna module and a human-computer interaction module; the first antenna module and the human-computer interaction module are electrically connected.

[0008] The wireless receiving system comprises a second antenna module and a communication module; the second antenna module is electrically connected to the communication module.

[0009] The wireless receiving system is arranged in the electric control cabinet of the concrete spraying trolley and is connected to the PLC module on the concrete spraying trolley.

[0010] The human-computer interaction module of the wireless transmitting system is used to receive operation instructions input by an operator and send the operation instructions to the first antenna module; the first antenna module is used to send the operation instructions to the wireless receiving system.

[0011] The second antenna module of the wireless receiving system is used to receive the operation instruction sent by the first antenna module, and send the operation instruction to the communication module; the communication module is used to send the operation instruction to the PLC module.

[0012] Optionally, the wireless receiving system is also used to send the current operating status information of the concrete wet spraying trolley to the wireless transmitting system.

[0013] Optionally, the human-computer interaction module includes a switch, a joystick and a display screen; the display screen is used to display current operating status information of the concrete wet spraying trolley.

[0014] Optionally, the wireless remote control system of the concrete wet spraying trolley also includes a selection switch; the selection switch is a two-position self-locking mechanical switch; the selection switch is arranged on the door of the electric control cabinet; the two gears of the selection switch are respectively connected in series with the cab operating system and the power supply circuit of the wireless receiving system.

[0015] Optionally, a first signal line is provided between the wireless receiving system and the PLC module; and a second signal line is provided between the cab operating system and the PLC module.

[0016] The first signal line is used to transmit a first normally closed signal sent by the wireless receiving system to the PLC module.

[0017] The second signal line is used to transmit a second normally closed signal sent by the cab operating system to the PLC module.

[0018] The PLC module is used to determine whether the first normally closed signal and the second normally closed signal are received at the same time, and if so, ignore the received operation instruction.

[0019] Optionally, the operating instructions include adjusting the opening and starting and stopping of the quick-setting agent and concrete flow.

[0020] Optionally, the operating instructions also include manual-automatic switching, positive pump start and stop, reverse pump start and stop, left and right sweeping of the robotic arm, and forward and backward movement of the trolley.

[0021] Optionally, the wireless receiving system is communicatively connected to the PLC module via a ProfiNET bus; the PLC module is used to control the corresponding actuator actions of the concrete spraying trolley according to the operating instructions.

[0022] Optionally, the second antenna module includes a second external antenna; the second external antenna is arranged outside the electric control cabinet.

[0023] Optionally, the wireless receiving system further includes a power supply interface; the power supply interface is connected to a 24V power supply in the electric control cabinet.

[0024] According to the specific embodiments provided by the utility model, the utility model discloses the following technical effects:

[0025] The utility model provides a wireless remote control system for a concrete wet spraying trolley, including a wireless transmitting system and a wireless receiving system; wherein the wireless receiving system is arranged in the electric control cabinet of the concrete wet spraying trolley and is connected to the PLC module on the concrete wet spraying trolley; the wireless transmitting system is used to receive the operation instructions input by the operator and send the operation instructions to the wireless receiving system; the wireless receiving system is used to send the received operation instructions to the PLC module. The utility model improves the existing concrete wet spraying trolley, adds the wireless remote control system to it, and then realizes remote operation of the concrete wet spraying trolley, so that the operation control does not need to be limited to the cab, greatly increases the operator's operation field of view, reduces the occurrence of misoperation, and does not require other personnel to assist in guiding the operation, which is both convenient and saves manpower. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 A schematic diagram of a concrete wet spraying trolley provided in an embodiment of the utility model;

[0028] Figure 2 A schematic diagram of a wireless remote control system for a concrete spraying trolley provided in an embodiment of the utility model;

[0029] Figure 3 A schematic diagram of another wireless remote control system for a concrete spraying trolley provided in an embodiment of the utility model;

[0030] Figure 4 A schematic diagram of a wireless transmission system provided by an embodiment of the utility model;

[0031] Figure 5 A schematic diagram of a wireless receiving system provided by an embodiment of the utility model;

[0032] Figure 6 A schematic diagram of a selection switch provided in an embodiment of the utility model;

[0033] Figure 7A schematic diagram of the internal module connections of an electric control cabinet provided in an embodiment of the utility model.

[0034] In the figure: 1-trolley chassis, 2-automatic feeding mechanism, 3-continuous mixing mechanism, 5-wet spraying manipulator, 6-cab, 7-accelerator barrel, 8-front support leg, 23-hopper, 36-engine system, 43-lighting lamp, 51-spray gun, 52-rotating support, 53-mechanical arm, 54-concrete conveying hose, 61-safety protection frame, 71-accelerator pump, 81-electric control cabinet. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0036] As a highly efficient tunnel support equipment, the concrete wet spraying trolley is widely used in various tunnel projects and plays an important role in mechanized tunnel construction. It uses intelligent mechanical arms and spraying systems to accurately spray concrete onto the tunnel rock surface to form a solid support layer. Figure 1 As shown, the concrete wet spraying trolley includes a trolley chassis 1, an automatic feeding mechanism 2, a continuous mixing mechanism 3, a wet spraying manipulator 5, a cab 6, an accelerator barrel 7, a front support leg 8, a hopper 23, an engine system 36, a lighting lamp 43, a spray gun 51, a rotating support 52, a mechanical arm frame 53, a concrete delivery hose 54, a safety protection frame 61, an accelerator pump 71, and an electric control cabinet 81.

[0037] The main task of the concrete spraying trolley is to spray concrete. During the spraying process, the intelligent robotic arm accurately sprays concrete onto the tunnel rock surface according to the preset spraying path and angle. At the same time, the high-pressure air system provides power for the spraying, ensuring that the concrete can be evenly covered on the rock surface to form a continuous and dense support layer. With the continuous advancement of science and technology and the continuous improvement of engineering needs, the concrete spraying trolley will continue to be optimized and improved in the future to provide more efficient, safe and environmentally friendly solutions for tunnel engineering construction. At the same time, with the increasing awareness of environmental protection, the concrete spraying trolley will further reduce energy consumption and emissions.

[0038] The concrete wet spraying trolley will continue to expand its application areas. It will not only be used in tunnel projects, but will also gradually expand to subways, water conservancy, mining and other fields, providing strong support for various engineering construction projects.

[0039] When construction methods and construction processes are reasonably selected, material, financial, human and other resources can be saved to the maximum extent, which has a win-win situation for corporate benefits and social security.

[0040] With the continuous improvement of requirements for construction environmental protection and operating efficiency, concrete wet spraying trolleys will still have a large market in China in the next few years.

[0041] With the advancement of technology, the functions of concrete spraying trolleys are also developing in the direction of intelligence and automation. Now almost all concrete spraying trolleys are equipped with programmable controllers to monitor and control various parameters and main functions. The programmable controllers of some concrete spraying trolleys are also equipped with equipment network bus systems such as ProfiNET, which support mutual communication with various equipment components based on ProfiNET. With the help of the ProfiNET network bus system, the various equipment components of the concrete spraying trolley are easy to connect (network) and achieve integration, so that the driver can operate and observe the operation and operation status of the equipment.

[0042] When the concrete wet spraying trolley is moving and operating, due to its body structure, it is impossible to effectively observe the surrounding conditions, which may easily cause safety accidents in some special circumstances.

[0043] The utility model mainly solves the problems of limitation and fixity of the original cab of the concrete wet spraying trolley: that is, due to the large body of the vehicle and many obstructions, the driver cannot fully understand the situation around the vehicle through the existing observation measures such as the reflector during operation, which may lead to defects such as operating errors; the movable range of the original cab is relatively fixed, so during operation, one more person is needed to use a walkie-talkie to guide the operation, which wastes a lot of manpower and material resources.

[0044] The purpose of the utility model is to provide a wireless remote control system for a concrete wet spraying trolley to realize remote operation of the concrete wet spraying trolley, which greatly increases the operator's operating field of vision, reduces the occurrence of misoperation, and does not require the assistance and guidance of other personnel in the operation, which is convenient and saves manpower, and also makes the operation of the concrete wet spraying trolley more flexible.

[0045] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0046] Example 1

[0047] like Figure 2-Figure 3 As shown, the utility model provides a wireless remote control system for a concrete wet spraying trolley, including a wireless transmitting system and a wireless receiving system; the wireless transmitting system and the wireless receiving system are wirelessly connected; wherein,

[0048] The wireless transmission system includes a first antenna module and a human-computer interaction module; the first antenna module and the human-computer interaction module are electrically connected.

[0049] The wireless receiving system comprises a second antenna module and a communication module; the second antenna module is electrically connected to the communication module.

[0050] The wireless receiving system is arranged in the electric control cabinet of the concrete spraying trolley and is connected to the PLC module on the concrete spraying trolley.

[0051] The human-computer interaction module of the wireless transmitting system is used to receive operation instructions input by an operator and send the operation instructions to the first antenna module; the first antenna module is used to send the operation instructions to the wireless receiving system.

[0052] The second antenna module of the wireless receiving system is used to receive the operation instruction sent by the first antenna module, and send the operation instruction to the communication module; the communication module is used to send the operation instruction to the PLC module.

[0053] In this article, the wireless transmitting system is also referred to as a remote control transmitter or a wireless remote control transmitting system, and the wireless receiving system is also referred to as a remote control receiver or a wireless remote control receiving system.

[0054] In some embodiments, the wireless receiving system is also used to send the current operating status information of the concrete spraying trolley to the wireless transmitting system.

[0055] In some embodiments, the human-computer interaction module includes a switch, a joystick and a display screen; the display screen is used to display the current operating status information of the concrete wet spraying trolley.

[0056] The switch or joystick is used to convert the operator's operating actions into corresponding electrical signals.

[0057] In addition, if the concrete wet spraying trolley fails, it can also be displayed through the display screen or indicator light of the wireless transmission system, allowing the operator to see the fault status of the concrete wet spraying trolley more intuitively.

[0058] Among them, the process of obtaining faults and judging whether a fault has occurred is as follows: the concrete wet spraying trolley collects signals reflecting the status of each device through sensors and other means, and feeds back to the PLC module in real time. When there is a difference or error with the corresponding preset status in the PLC module, if it is determined to be a fault, the fault signal is sent to the remote control receiver through the pre-agreed bus signal position, and the remote control receiver then sends the signal to the remote control transmitter wirelessly, through the display status agreed on the remote control transmitter. For example, the corresponding fault text description or digital code is displayed on the display screen, or the multi-color LED indicator light on the panel is displayed, so that the operator can see the current fault status of the concrete wet spraying trolley more intuitively. This function is generally used as an extension of the cab operation display screen or indicator light, or the display screen or indicator light outside the electric control cabinet, so that the equipment status signal that can only be received by the operator at a fixed device or operating position can be transmitted to the operator more flexibly and quickly.

[0059] like Figure 4 As shown, in some embodiments, the human-computer interaction module of the wireless transmission system also includes a transmission system mainboard, a coding board, a program chip, a key sensing board and a high-frequency module, and the coding board, the program chip, the key sensing board and the high-frequency module are all electrically connected to the transmission system mainboard. The first antenna module includes an external antenna, also referred to as a first external antenna.

[0060] Among them, after the transmitting system mainboard receives the electrical signal from the switch or the joystick, it converts the electrical signal into the corresponding operation instruction and sends it to the encoding board for encoding, and then sends the encoded operation instruction to the high-frequency module to convert it into a high-frequency radio signal and send it out through the external antenna. The program chip is used to store the program executed by the transmitting system mainboard. The key sensor board is used to read the information in the smart key and send the information to the transmitting system mainboard. The transmitting system mainboard determines whether the operator has the operation authority based on the information in the smart key. After the authority is confirmed, the wireless transmitting system can be started and used normally.

[0061] The wireless transmitting system also includes a power supply board and a battery. The power supply board is used to convert the battery voltage into a voltage suitable for use by various parts inside the wireless transmitting system.

[0062] In some embodiments, operation instruction information may also be displayed on the display screen.

[0063] like Figure 5 As shown, in some embodiments, the communication module of the wireless receiving system includes a bus board, a high-frequency board, an emergency stop board, a high-frequency module and a power board; the second antenna module includes an external antenna, also called a second external antenna.

[0064] The radio signal sent by the wireless transmission system is received by the external antenna of the second antenna module and the high-frequency module, and after being processed by the high-frequency board, it is sent to the bus board for compilation, and then transmitted to the PLC of the concrete wet spraying trolley through the corresponding bus.

[0065] Among them, the external antenna of the second antenna module and the high-frequency module receive the radio signal transmitted by the transmission system and send it to the high-frequency board. The high-frequency board processes the received signal into a usable signal for the bus board and sends it to the bus board. The high-frequency board contains electronic components such as filtering, voltage stabilization, and voltage reduction, and is used together with the high-frequency module.

[0066] The bus board compiles the received signal and sends it to the PLC of the concrete spraying trolley through the bus interface. In addition, different bus board models can be matched for different fieldbus types to convert the corresponding control signal into bus signal output.

[0067] Emergency stop board: Emergency stop is the most basic and important function of the remote control. In order to ensure the stability and reliability of the emergency stop function, an independent emergency stop board is set up to output the switch emergency stop signal required by the user.

[0068] The emergency stop board is part of the receiving system, and its signal source is the emergency stop switch (inherent) of the wireless transmission system. The emergency stop board also receives signals processed by the high-frequency board, and the output object is the circuit that the peripheral device needs to access the emergency stop signal.

[0069] The power board filters and reduces the voltage of the peripheral power supply to supply power to the components in the receiving system. The power board takes into account the voltage reduction of the external power supply and provides power and some instructions to the functional mainboards connected to the power board.

[0070] Starting from the power supply of the power board, the control signal sent by the transmission system is received by the high-frequency module. After being compiled by the bus board, the corresponding bus signal is transmitted to the PLC of the concrete wet spraying trolley.

[0071] like Figure 6 As shown, in some embodiments, the wireless remote control system of the concrete wet spraying trolley also includes a selection switch; the selection switch is a two-position self-locking mechanical switch; the selection switch is arranged on the door of the electric control cabinet; the two gears of the selection switch are respectively connected in series with the cab operating system and the power supply circuit of the wireless receiving system.

[0072] When the switch is operated, no matter which side the current gear is on, the other side must be in the disconnected state to ensure that the cab operation or the wireless remote control operation are two independent control circuits without interfering with each other.

[0073] In some embodiments, a first signal line is provided between the wireless receiving system and the PLC module; and a second signal line is provided between the cab operating system and the PLC module.

[0074] The first signal line is used to transmit a first normally closed signal sent by the wireless receiving system to the PLC module.

[0075] The second signal line is used to transmit a second normally closed signal sent by the cab operating system to the PLC module.

[0076] The PLC module is used to determine whether the first normally closed signal and the second normally closed signal are received at the same time, and if so, ignore the received operation instruction.

[0077] That is, in the state of cab operation or wireless remote control operation, there is a normally closed signal that can be read by the PLC, and it is set that they cannot exist at the same time. By judging and associating the two different signals, the interlocking of cab operation or wireless remote control operation is achieved at the program level.

[0078] In some embodiments, the operating instructions include adjusting the opening and starting and stopping of the quick-setting agent and concrete flow.

[0079] In some embodiments, the operating instructions also include manual-automatic switching, positive pump start and stop, reverse pump start and stop, left and right sweeping of the robotic arm, and forward and backward movement of the concrete wet spraying trolley.

[0080] In some embodiments, the wireless receiving system is communicatively connected to the PLC module via a ProfiNET bus; the PLC module is used to control the corresponding actuator actions of the concrete spraying trolley according to the operating instructions.

[0081] In some embodiments, the second external antenna of the second antenna module is disposed outside the electric control cabinet. The second external antenna may be a suction cup antenna, such as Figure 7 shown.

[0082] By installing a wireless remote control system on the concrete spraying trolley, that is, installing a wireless remote control receiving system in the electrical cabinet of the concrete spraying trolley to communicate with the PLC module of the equipment through the ProfiNET bus, and then leading the antenna of the receiving system to the outside of the electrical cabinet through a suction cup antenna, a good signal transmission can be achieved between the receiving system and the transmitting system. In some specific cases, the remote control transmitting system can be used directly to operate the concrete spraying trolley. The operator can hold the transmitting system and stand at any desired position to observe and operate the movable mechanical structure of the concrete spraying trolley. At the same time, the feedback screen (display screen) on the remote control transmitting system receives the status information and instructions of the concrete spraying trolley during operation, thereby achieving an efficient and safe effect.

[0083] In some embodiments, the wireless receiving system further comprises a power supply interface; the power supply interface is connected to a 24V power supply in the electric control cabinet, such as Figure 7 shown.

[0084] In some embodiments, all wave switches and rockers have a safety protection function, that is, the remote control launch system is activated and started only when the switch and rocker mechanical structure is in the "OFF" position, avoiding malfunction caused by directly switching the concrete wet spraying trolley to a certain working mode at startup; at the same time, after configuring this mode switching method, the operation interface of the remote control launch system is simpler, which is convenient for the operator to quickly get started.

[0085] In some embodiments, the wireless receiving system is powered by a 24V power supply on the concrete spraying trolley, and then exchanges data with the PLC of the concrete spraying trolley through the ProfiNET bus. When programming the concrete spraying trolley, the cab operation of the concrete spraying trolley and the wireless remote control operation are internally interlocked, and switched externally through a selection switch, so that the cab operation and the wireless remote control operation cannot be performed at the same time, which plays a role in ensuring safety. When the selection switch is switched to wireless remote control operation, the operator can stand at any position with the wireless remote control transmission system to operate the concrete spraying trolley, which is convenient and labor-saving, and saves manpower and material resources.

[0086] In summary, the utility model has the following advantages:

[0087] 1) Currently, most concrete spraying trolleys are operated with a cab. The body of the concrete spraying trolley is narrow, the cab is low, and the field of vision is poor. An assistant is required for operation. At the same time, the operator's operating level is also high. If the operator's positioning is not accurate, it is easy to cause damage to the nozzle and the spray rod. If wireless remote control is used at this time, the equipment can be operated directly at the corresponding working surface position, and the nozzle, spray rod and working surface conditions can be directly observed, which will avoid such problems.

[0088] 2) Sometimes, in construction sites with complex working conditions (under poor observation conditions such as at night) or when the concrete wet spraying trolley needs to be repaired, there will be blind spots for observation when using the cab operation, and two or more people are required to coordinate and guide the operation, which will lead to a waste of manpower; and during maintenance, if the relevant personnel guiding and the operator are out of step, there may be a threat to the personal safety of the maintenance personnel; at this time, changing the cab operation to wireless remote control operation not only saves manpower and reduces costs, but is also safer for maintenance personnel and more efficient for maintenance equipment;

[0089] 3) When debugging or fine-tuning the equipment, the operation of the corresponding mechanism cannot be seen intuitively in the cab, which makes fine-tuning difficult; using a wireless remote control, the operation can be directly performed at the position of the corresponding mechanism, making it easier to see the action status of the equipment, and easy to quickly troubleshoot and accurately align to the corresponding position.

[0090] 4) Driven by the current market environment of unmanned operation and cost reduction and efficiency improvement, adding wireless remote control equipment can not only reduce labor costs, but also further reduce the cab of the concrete wet spraying trolley, which is beneficial to the overall structural optimization of the concrete wet spraying trolley, reduce the occupied volume, reduce the overall weight, reduce the cost of the whole vehicle, and increase market competitiveness.

[0091] 5) The industrial wireless remote control system for the wet concrete spraying trolley provided by the utility model uses ProfiNET communication, has the advantages of simple installation and convenient debugging, and does not bring complicated workload to the installation and use of the entire wet concrete spraying trolley.

[0092] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0093] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the method and core ideas of the utility model. At the same time, for those skilled in the art, according to the ideas of the utility model, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the utility model.

Claims

1. A wireless remote control system for a concrete spraying trolley, characterized in that: It includes a wireless transmitting system and a wireless receiving system; the wireless transmitting system and the wireless receiving system are wirelessly connected; wherein, The wireless transmission system comprises a first antenna module and a human-computer interaction module; the first antenna module and the human-computer interaction module are electrically connected; The wireless receiving system comprises a second antenna module and a communication module; the second antenna module is electrically connected to the communication module; The wireless receiving system is arranged in the electric control cabinet of the concrete spraying trolley and is connected to the PLC module on the concrete spraying trolley; The human-computer interaction module of the wireless transmission system is used to receive the operation instruction input by the operator and send the operation instruction to the first antenna module; the first antenna module is used to send the operation instruction to the wireless receiving system; The second antenna module of the wireless receiving system is used to receive the operation instruction sent by the first antenna module, and send the operation instruction to the communication module; the communication module is used to send the operation instruction to the PLC module.

2. A wireless remote control system for concrete spraying trolley according to claim 1, characterized in that: The wireless receiving system is also used to send the current operating status information of the concrete spraying trolley to the wireless transmitting system.

3. A wireless remote control system for concrete spraying trolley according to claim 2, characterized in that: The human-computer interaction module includes a switch, a joystick and a display screen; the display screen is used to display the current operating status information of the concrete wet spraying trolley.

4. The wireless remote control system for concrete spraying trolley according to claim 1 is characterized in that: It also includes a selection switch; the selection switch is a two-position self-locking mechanical switch; the selection switch is arranged on the door of the electric control cabinet; the two gears of the selection switch are respectively connected in series with the cab operating system and the power supply circuit of the wireless receiving system.

5. A wireless remote control system for concrete spraying trolley according to claim 4, characterized in that: A first signal line is provided between the wireless receiving system and the PLC module; a second signal line is provided between the cab operating system and the PLC module; The first signal line is used to transmit a first normally closed signal sent by the wireless receiving system to the PLC module; The second signal line is used to transmit a second normally closed signal sent by the cab operating system to the PLC module; The PLC module is used to determine whether the first normally closed signal and the second normally closed signal are received at the same time, and if so, ignore the received operation instruction.

6. The wireless remote control system for concrete spraying trolley according to claim 1 is characterized in that: The operation instructions include the opening adjustment and start and stop of the quick-setting agent and concrete flow.

7. A wireless remote control system for concrete spraying trolley according to claim 6, characterized in that: The operation instructions also include manual-automatic switching, positive pump start and stop, reverse pump start and stop, left and right sweeping of the mechanical arm, and forward and backward movement of the concrete wet spraying trolley.

8. The wireless remote control system for concrete spraying trolley according to claim 1 is characterized in that: The wireless receiving system is connected to the PLC module through the ProfiNET bus; the PLC module is used to control the corresponding actuator action of the concrete spraying trolley according to the operation instruction.

9. The wireless remote control system for concrete spraying trolley according to claim 1, characterized in that: The second antenna module includes a second external antenna; the second external antenna is arranged outside the electric control cabinet.

10. The wireless remote control system for concrete spraying trolley according to claim 1, characterized in that: The wireless receiving system also includes a power supply interface; the power supply interface is connected to the 24V power supply in the electric control cabinet.

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