A wireless industrial remote control system for a fire truck

Abstract

The utility model provides a wireless industry remote control system for fire engine, include: wireless transmitting system, it includes operation input unit, transmitter mainboard, high frequency module A and display screen, wireless receiving system, it includes high frequency module B, vehicle control unit, equipment drive interface and state feedback unit, wireless transmitting system and wireless receiving system pass through wireless communication connection, operation input unit is connected with transmitter mainboard, transmitter mainboard is connected with high frequency module A, high frequency module A and high frequency module B wireless communication connection, high frequency module B is connected with vehicle control unit, vehicle control unit is connected with equipment drive interface for output equipment control signal, equipment drive interface is connected with the fire extinguishing gun, lifting platform, water supply pump equipment of fire engine for driving equipment action, state feedback unit is connected with vehicle control unit for gathering equipment operation data, transmitter mainboard is connected with display screen for showing equipment state.

Description

Technical Field

[0001] This utility model relates to the field of industrial wireless control technology, and in particular to a wireless industrial remote control system for fire trucks. Background Technology

[0002] This technology belongs to the field of industrial wireless control technology and is specifically applied to fire truck operation scenarios. It can realize remote wireless control of multiple key equipment such as fire truck fire extinguishing systems (such as fire monitors), lifting platforms, and water supply devices (such as water pumps). It is suitable for various fire emergency rescue sites and can especially cope with complex operating environments such as high temperature, vibration, and electromagnetic interference.

[0003] While existing wireless remote controls for fire trucks can enable remote control of equipment and meet basic operational needs, they are inadequate in terms of anti-interference, functional compatibility, safety, and environmental adaptability. Utility Model Content

[0004] To address the aforementioned problems, this utility model provides a wireless industrial remote control system for fire trucks, comprising:

[0005] The wireless transmission system includes an operation input unit, a transmitter motherboard, a high-frequency module A, and a display screen;

[0006] The wireless receiving system includes a high-frequency module B, an on-board control unit, a device drive interface, and a status feedback unit.

[0007] The wireless transmitting system and the wireless receiving system are connected wirelessly.

[0008] The operation input unit is connected to the transmitter motherboard and is used to input control commands;

[0009] The transmitter motherboard is connected to the high-frequency module A and is used to send control signals;

[0010] The high-frequency module A and the high-frequency module B are wirelessly connected.

[0011] The high-frequency module B is connected to the vehicle control unit and is used to receive control signals and convert them into equipment control signals;

[0012] The vehicle control unit is connected to the device drive interface and is used to output device control signals;

[0013] The device drive interface is connected to the fire truck's fire cannon, lifting platform, and water supply pump equipment to drive the equipment's operation.

[0014] The status feedback unit is connected to the vehicle control unit and is used to collect equipment operation data and feed it back to the transmitter motherboard;

[0015] The transmitter motherboard is connected to the display screen and is used to display the device status.

[0016] In one possible implementation, the wireless transmission system further includes a power module connected to the transmitter motherboard for supplying power to the wireless transmission system;

[0017] The emergency stop switch is connected to the transmitter's main board and is used to cut off power in an emergency.

[0018] In one possible implementation, the wireless receiving system further includes an on-board control unit connected to the fire truck's ECU via a CAN bus for communication with the on-board equipment.

[0019] In one possible implementation, the device driver interface includes 8 relay output interfaces and 4 analog output interfaces, all of which have overvoltage protection functions.

[0020] In one possible implementation, the status feedback unit includes an angle sensor, a wire displacement sensor, and a pressure sensor, which are used to collect operational data of the fire extinguishing cannon, the lifting platform, and the water supply system, respectively.

[0021] In one possible implementation, the waterproof and dustproof rating of the wireless transmitting and receiving systems is not lower than IP67.

[0022] In one possible implementation, the wireless transmission system is powered by a 5000mAh 18650 lithium battery pack, supports 5V / 2A fast charging, and has built-in overcharge, over-discharge, short circuit, and overcurrent protection circuits.

[0023] In one possible implementation, the high-frequency module A and high-frequency module B support dual-band switching between 2.4GHz and 433MHz and have signal relay functions.

[0024] In one possible implementation, the wireless transmitting system and the wireless receiving system have a control switching function.

[0025] In one possible implementation, the wireless transmission system has a key unlocking mechanism to prevent unauthorized operation.

[0026] By adopting the above-mentioned technical means, this system has at least the following beneficial effects compared with the existing technology:

[0027] This application, by setting a dual-band adaptive switching mechanism, combined with data verification and real-time signal monitoring functions, triggers an alarm when the signal is too weak, which can ensure stable communication and accurate command transmission under the complex electromagnetic environment and physical obstruction at the fire scene, and avoid the fire cannon or water pump from going out of control.

[0028] This application adopts a highly integrated multi-device control function, integrating multiple sets of operating components at the hardware level, such as buttons, joysticks, and knobs, so that the fire truck's fire monitor, lifting platform, and water pump can be controlled by a single remote control, reducing operator training costs and speeding up the operation response during rescue.

[0029] This application utilizes a rationally designed set of operating components, including an emergency stop button, function buttons, and a joystick. A key unlocking mechanism prevents unauthorized operation beforehand, while operation travel limits and accidental touch locking functions prevent accidental operation. An emergency power-off button is included during operation to quickly cut off power to the controlled equipment and address unforeseen risks. Afterwards, if the remote control loses connection with the vehicle terminal, an automatic emergency stop is triggered, accompanied by an audible and visual alarm, ensuring rapid response to abnormal situations and preventing safety accidents. This allows firefighters to operate quickly and accurately, improving operational efficiency.

[0030] This application improves the durability of the remote control in harsh fire-fighting environments such as high temperature, low temperature, and vibration by adopting an IP67 waterproof and dustproof design. Combined with a long-lasting power supply, it reduces the probability of equipment failure, extends the service life, and reduces the investment in equipment replacement by fire departments. Attached Figure Description

[0031] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0032] Figure 1 A schematic diagram of the structure of an aerial platform fire truck provided as an exemplary embodiment of this utility model;

[0033] Figure 2 A schematic diagram of the structure of a wireless industrial remote control system provided for an exemplary embodiment of this utility model;

[0034] Figure 3 A schematic diagram of a wireless industrial remote control system provided as another exemplary embodiment of the present invention;

[0035] Figure 4 A schematic diagram of the transmitter structure of a wireless industrial remote control system provided for an exemplary embodiment of this utility model;

[0036] Figure 5 A schematic diagram of the receiver structure of a wireless industrial remote control system provided for an exemplary embodiment of this utility model; Detailed Implementation

[0037] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0038] like Figures 1 to 5 As shown, the wireless industrial remote control system for fire trucks provided by this utility model consists of a wireless transmitting system and a wireless receiving system, which are connected wirelessly. The wireless transmitting system is the handheld part of the operator, and its internal structure is tightly integrated. The command signals from the operation input unit are encoded and processed by the transmitter's mainboard and then transmitted through high-frequency module A. The operation input unit includes various control components, such as customizable buttons, proportional joysticks, and high-precision rotary potentiometer knobs. These are used to control the start / stop, angle, and flow rate of different equipment on the fire truck, and each component is equipped with a mechanical limit block and a mis-touch lock button to ensure operational accuracy and safety. The transmitter mainboard acts as a "command center," receiving signals from the operation input unit and data from the vehicle-mounted terminal, and driving the display screen to show relevant information.

[0039] For example, please refer to Figure 1 , Figure 1 A schematic diagram of the structure of an aerial platform fire truck provided for an exemplary embodiment of the present utility model includes a driver's cab 1; a vehicle chassis 2; an operating box 3; a rear outrigger 4; a turntable 5; a ladder arm 6; a pump room 7; a curved boom 8; a front outrigger 9; a fire monitor 10; a working platform 11; a telescopic boom 12; and a boom 13.

[0040] Please continue reading. Figure 2 The wireless remote control system provided in this embodiment is installed on the fire truck. Specifically, the wireless remote control receiving system is installed in the equipment compartment behind the driver's cab or the protective compartment on the side of the frame of the fire truck. It is connected and communicated with the CAN port of the fire truck's electronic control unit (ECU) via CAN bus to achieve good signal transmission between the receiving system and the transmitting system. The operator can operate the fire truck mechanism from any position by holding the wireless transmitting system, so as to observe the action status of the fire truck mechanism more directly and clearly.

[0041] For further details, please refer to Figure 3 The wireless remote control system provided by this utility model is divided into a wireless transmitting system and a wireless receiving system. The wireless receiving system is powered by the 24V power supply on the fire truck and then exchanges data with the fire truck ECU through the CAN bus.

[0042] The wireless receiving system installed on the fire truck switches between itself and the control room via "active triggering + ECU confirmation." For example, when firefighters do not need to use the wireless remote control system, they press the "Switch to Control Room" button on the wireless remote control system. The remote control sends a "Release Control" command to the receiver, which forwards it to the ECU. When the control room console displays "Control Acquired," the wireless remote control loses its operational function, and the control room console can operate the equipment normally. When firefighters need to move from the control room to the scene for remote operation, they press the "Remote Control Request" button on the control room console. After confirmation, the control room console sends a "Release Control" command to the ECU. The ECU releases control and simultaneously sends a "Control Released" feedback to the control room console. After pressing the "System Wake-up" button on the remote control, the remote control can issue commands normally. When operational control is transferred to the wireless remote control system, the operator can take the wireless remote control transmitter and stand in any position to operate the fire truck.

[0043] For further details, please refer to Figure 4 A wireless remote control transmission system includes at least the following structure:

[0044] Transmitter motherboard: Responsible for receiving instruction signals from the operation input unit, encoding and processing them, and then sending them to the vehicle-mounted receiver terminal via high-frequency module A; at the same time, it receives equipment status data fed back by the vehicle-mounted terminal, parses it, and drives the display unit to display it.

[0045] The operation input unit includes three sets of self-resetting customizable buttons, which, for example, can control the start and stop of the fire extinguisher, lifting platform, and water pump. Two proportional joysticks, for example, can be used to control the pitch / rotation angle of the fire extinguisher and the lifting / extension stroke of the lifting platform. One high-precision rotary potentiometer knob, for example, can be used to adjust the water pump flow rate and adjust the precision. All the above operation buttons are equipped with mechanical limit blocks, such as a ±90° pitch limit for the fire extinguisher, and an integrated accidental touch lock button. Pressing the lock button invalidates all operation inputs; unlocking requires pressing it again for confirmation.

[0046] The display screen uses a TFT color LCD screen with an anti-glare coating. It supports switching between three independent control interfaces: fire extinguisher, lifting platform, and water pump. It displays the equipment's operating parameters and remote control status in real time, and its backlight brightness can be automatically adjusted according to the ambient light intensity.

[0047] High-frequency module A integrates a dual-band RF chip of 2.4GHz and 433MHz, which can automatically switch according to the communication distance. For example, the 2.4GHz band is used for high-speed data transmission over short distances of ≤300m, while the 433MHz band is used for long-distance anti-interference transmission over 300-500m. The module has a built-in CRC-32 cyclic redundancy check module and an RSSI signal strength detection module.

[0048] The power module provides power to the above structure and uses a 5000mAh 18650 lithium battery pack, supporting 5V / 2A fast charging. It incorporates a TIBQ24725 charging management chip, providing quadruple protection against overcharge, over-discharge, short circuit, and overcurrent. A red LED flashes and a buzzer alarm sounds when the battery is low.

[0049] An emergency stop switch is provided, with a red raised emergency power-off button on the bottom of the casing. For example, it is set to require a smart key card to be swiped to turn on the machine to prevent unauthorized operation. The casing is made of IP67 grade PC+ABS engineering plastic and filled with EVA shock-absorbing pads. It has passed drop and vibration tests.

[0050] like Figure 5 The wireless remote control receiving system includes at least the following structure:

[0051] High-frequency module B: Matches the parameters of high-frequency module A, has signal relay function, and supports pairing and communication with one remote control unit.

[0052] Vehicle-mounted control unit: Connects to the fire truck ECU and various equipment controllers via CAN bus, converting remote control commands into PWM control signals or switching signals.

[0053] Device driver interface: It is equipped with 8 relay output interfaces and 4 analog output interfaces, all of which have overvoltage protection function.

[0054] Status feedback unit: Data on equipment operation is collected via sensors controlling the angle of the fire extinguisher, the cable displacement sensor controlling the lifting platform, and the pressure sensor controlling the water supply system. This data is filtered and then fed back to the remote control. When the equipment exceeds its limits or exhibits abnormal parameters, an audible and visual alarm is triggered on the vehicle-mounted terminal, and alarm information is simultaneously sent to the remote control.

[0055] The system provided in this application employs dual-band frequency hopping communication technology, combined with CRC check and signal strength detection, which can resist electromagnetic interference at fire scenes and has a communication distance exceeding 500 meters, ensuring smooth long-distance rescue operations and achieving efficient and stable equipment control. Secondly, the system integrates customizable buttons, joysticks, and knobs, allowing operators to control multiple devices such as fire truck monitors, lifting platforms, and water pumps with a single remote control, greatly simplifying the operation process and reducing the workload of firefighters. Furthermore, its color display screen intuitively displays equipment status using a combination of numbers and graphics, with a simple and easy-to-understand interface, reducing the learning cost for operators.

[0056] Furthermore, the system provided in this application is equipped with multiple safety mechanisms, including emergency power-off and accidental touch locking, and can provide real-time feedback on abnormal equipment status, effectively preventing safety accidents caused by operational errors and equipment malfunctions. Finally, the system has strong environmental adaptability, with IP67 waterproof and dustproof design and wide-temperature shockproof features, enabling it to cope with harsh conditions such as high temperature, humidity, and vibration in firefighting operations, extending the lifespan of the remote control and providing reliable support for fire rescue work.

[0057] It should be noted that this patent claims protection for the aforementioned hardware structure and the connection relationships between its components, aiming to achieve efficient wireless remote control of key fire truck equipment through a unique mechanical and electrical connection layout. The related software functions and algorithms can be implemented using existing technologies.

[0058] Other embodiments of this application will readily conceive of by those skilled in the art upon consideration of the specification and practice of the technical solutions disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and embodiments are to be considered exemplary only, and the true scope and spirit of this application are indicated by the following claims.

[0059] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A wireless industrial remote control system for fire trucks, characterized in that, include: The wireless transmission system includes an operation input unit, a transmitter motherboard, a high-frequency module A, and a display screen; The wireless receiving system includes a high-frequency module B, an on-board control unit, a device drive interface, and a status feedback unit. The wireless transmitting system and the wireless receiving system are connected wirelessly. The operation input unit is connected to the transmitter motherboard and is used to input control commands; The transmitter motherboard is connected to the high-frequency module A and is used to send control signals; The high-frequency module A and the high-frequency module B are wirelessly connected. The high-frequency module B is connected to the vehicle control unit and is used to receive control signals and convert them into equipment control signals; The vehicle control unit is connected to the device drive interface and is used to output device control signals; The device drive interface is connected to the fire truck's fire cannon, lifting platform, and water supply pump equipment to drive the equipment's operation. The status feedback unit is connected to the vehicle control unit and is used to collect equipment operation data and feed it back to the transmitter motherboard; The transmitter motherboard is connected to the display screen and is used to display the device status.

2. The wireless industrial remote control system for fire trucks according to claim 1, characterized in that, The wireless transmission system also includes a power module, which is connected to the transmitter motherboard and is used to power the wireless transmission system. The emergency stop switch is electrically connected to the transmitter's main board and is used to cut off power in an emergency.

3. The wireless industrial remote control system for fire trucks according to claim 1, characterized in that, The vehicle-mounted control unit of the wireless receiving system is connected to the ECU of the fire truck via a CAN bus to enable communication with the vehicle-mounted equipment.

4. The wireless industrial remote control system for fire trucks according to claim 1, characterized in that, The device driver interface includes 8 relay output interfaces and 4 analog output interfaces, all of which have overvoltage protection function.

5. The wireless industrial remote control system for fire trucks according to claim 1, characterized in that, The status feedback unit includes an angle sensor, a wire displacement sensor, and a pressure sensor, which are used to collect operating data of the fire extinguishing cannon, the lifting platform, and the water supply system, respectively.

6. The wireless industrial remote control system for fire trucks according to claim 1, characterized in that, The waterproof and dustproof rating of the wireless transmitting and receiving systems shall not be lower than IP67.

7. The wireless industrial remote control system for fire trucks according to claim 2, characterized in that, The wireless transmission system is powered by a 5000mAh 18650 lithium battery pack, supports 5V / 2A fast charging, and has built-in overcharge, over-discharge, short circuit and overcurrent protection circuits.

8. The wireless industrial remote control system for fire trucks according to claim 1, characterized in that, The high-frequency module A and high-frequency module B support dual-band switching between 2.4GHz and 433MHz and have signal relay functions.

9. The wireless industrial remote control system for fire trucks according to claim 1, characterized in that, The wireless transmitting system and the wireless receiving system have a control switching function.

10. The wireless industrial remote control system for fire trucks according to claim 1, characterized in that, The wireless transmission system has a key unlocking mechanism to prevent unauthorized operation.

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