OLED (Organic Light Emitting Diode) display wireless remote controller

Abstract

The utility model provides an OLED (Organic Light Emitting Diode) display wireless remote controller which comprises a manual control box and a host which is arranged on a crane and is in wireless communication with the manual control box, the manual control box comprises a manual control box MCU (Microprogrammed Control Unit), a manual control box end radio frequency unit connected with the manual control box MCU, a control key, an LED (Light Emitting Diode) state indicator lamp and an OLED display screen; the main machine comprises a main machine MCU (Microprogrammed Control Unit) and a main machine end radio frequency unit which is in wireless communication with the manual control box end radio frequency unit, a motor of the crane is provided with a motor control interface, and the main machine MCU is connected to the motor control interface through a motor driving circuit. The OLED display screen is used for displaying more detailed information, such as the battery electric quantity of the manual control box, the environment temperature, the signal intensity, the operation state of the crane, the limiting indication, the voltage, the current and the temperature of the motor and the like; through the combination of the OLED display screen and the LED indicating lamp, an operator can clearly see control information even in a dark or severe environment, and the environmental adaptability is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of wireless remote control, in particular to a wireless remote control controller with an OLED display. Background Art

[0002] A wide variety of electric hoists and lightweight cranes have been widely used in various aspects of production and life, including industrial manufacturing, warehousing and logistics, and construction. These devices have greatly improved work efficiency and reduced the burden of labor. The corresponding controllers have also evolved accordingly. Initially, the operating handle was connected to the main unit via a cable, and the main unit was usually installed on or next to the crane's motor structure.

[0003] With traditional wired controllers, operators must stand near the crane host, which greatly limits their usage scenarios. Especially for cranes installed at high places, operators need to stand high above or below the scaffolding, which poses a significant safety risk.

[0004] To overcome these issues, wireless remote controls were developed. They eliminate the cable connection between the hand control box and the main unit, instead controlling the crane via wireless signals. This design extends the control range, allowing operators to control the crane without standing directly next to the machine, greatly improving operational convenience and safety and expanding its use cases. Despite the numerous advantages offered by wireless remote controls, current products on the market still have some drawbacks:

[0005] 1. Limited information display:

[0006] Simple status indication: The existing wireless remote control box is only equipped with an LED status indicator, which can only display simple information such as power on, power off, button released, button pressed, etc.

[0007] Lack of transparency in operating data: Key operating parameters, such as the battery level of the hand control box, the voltage, current, temperature, and signal quality of the crane motor, are not displayed. This results in a lack of early warning before equipment failure occurs, and subsequent troubleshooting is only carried out after the equipment has failed.

[0008] 2. Status indication is not intuitive:

[0009] Limitations of LED indicators: A single LED light has only two states: on and off. To display more information, multiple LEDs must be combined to display. This not only increases the size of the hand control box, but also makes the information display non-intuitive. Operators need to carefully identify the meaning of each LED indicator to obtain the corresponding information.

[0010] 3. Limitation problem:

[0011] Limited vision: When the crane is raised to a high position, the operator standing below is unable to detect the crane triggering the limit switch in time due to limited vision and angle. This not only reduces work efficiency but also poses certain safety risks.

[0012] 3. Wireless signal interference:

[0013] Signal loss risk: If the RF signal from the hand control box is interfered with, the host computer may not receive the control signal, resulting in uncontrolled operation. For example, after the operator presses the stop button, if the signal is interfered with, the host computer will continue to execute the previous instruction, which may cause a serious safety accident.

[0014] 4.Battery power problem:

[0015] Risk of battery depletion: The hand control box is powered by a battery. When the battery is nearly depleted, the voltage drops, weakening the discharge capacity. During intermittent operation of the RF chip, the sudden high current demand can cause the battery voltage to drop further, triggering a chip reset or data packet errors, resulting in control failure. This situation often occurs on site, and operators mistakenly believe it is a machine malfunction, delaying production.

[0016] 5. Unstable power supply voltage:

[0017] Voltage fluctuation risk: Construction sites often experience irregular power usage, such as incorrectly connecting 380V and 220V power supplies, thin and long cables, and the operating current of other equipment, resulting in the actual power voltage entering the crane being lower than the rated voltage. Prolonged undervoltage operation can cause severe motor overheating, accelerate winding aging, and even damage the motor. Utility Model Content

[0018] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a wireless remote control controller with OLED display, which is used to solve the problems of limited information display and non-intuitive status indication of existing wireless remote controls in the prior art.

[0019] To achieve the above-mentioned and other related purposes, the present invention provides the following technical solutions:

[0020] A wireless remote control controller with an OLED display comprises a hand control box and a host installed on a crane and communicating wirelessly with the hand control box. The hand control box comprises a hand control box MCU, a hand control box-end radio frequency unit connected to the hand control box MCU, control buttons, an LED status indicator light, and an OLED display screen. The host comprises a host MCU, a host-end radio frequency unit that wirelessly communicates with the hand control box-end radio frequency unit. The motor of the crane is provided with a motor control interface, and the host MCU is connected to the motor control interface via a motor drive circuit.

[0021] To implement the above technical solution, the hand control box MCU is responsible for processing the control button commands input by the user, and wirelessly interacts with the host end RF unit through the hand control box end RF unit, converting these commands into wireless signals and sending them to the host; the user sends instructions by operating the control buttons on the hand control box (such as power on, power off, uplink, downlink, etc.), and these instructions are received and processed by the hand control box MCU; the LED status indicator on the hand control box is used to provide the user with instant feedback, such as operation confirmation, status indication or error prompt; the OLED display is used to display more detailed information, such as the battery level of the hand control box, ambient temperature, signal strength, crane operation status, limit indication, motor voltage, current and temperature, etc.; the host MCU communicates with the crane motor control interface through the motor drive circuit It can be connected to the port to achieve precise speed and torque control; it receives wireless signals sent by the hand control box and controls the operation of the motor according to these signals to realize the start, stop, rise, and lowering of the crane; through wireless remote control, the operator can operate in a dangerous area away from the crane, reducing safety risks; the OLED display provides rich visual feedback, allowing the operator to understand the operating status of the crane in real time, improving the convenience and intuitiveness of operation; information such as motor voltage, current and temperature on the OLED display helps to quickly diagnose and solve potential fault problems; through the combination of OLED display and LED indicator light, the operator can clearly see the control information even in dim light or harsh environments, enhancing environmental adaptability.

[0022] In one embodiment of the present invention, a motor operating temperature detection circuit, a motor operating current detection circuit, and a limit switch monitoring circuit are connected between the motor and the host MCU.

[0023] To implement the above technical solution, the motor's operating temperature, current, and the crane's limit switch status are monitored. These monitoring signals are transmitted to the host MCU, which then determines whether to take appropriate control measures, such as reducing or stopping the motor. Simultaneously, this monitoring information is transmitted to the hand control box via wireless communication and displayed on the OLED display, allowing the user to understand the crane's operating status and ensure the motor operates within a safe range, thereby preventing equipment damage from overheating or overcurrent. The limit switch monitoring circuit allows real-time monitoring of the crane's operating range, preventing it from operating beyond the predetermined range and improving safety. The OLED display provides real-time visual feedback on the motor's status, enabling operators to quickly respond to any abnormalities.

[0024] In one embodiment of the present invention, the hand control box MCU is connected to an ambient temperature detection circuit for detecting the ambient temperature and a battery power management unit for detecting the battery power of the mobile phone box.

[0025] To implement the above technical solution, the ambient temperature detection circuit is used to monitor the ambient temperature around the hand control box in real time and transmit the detected temperature data to the hand control box MCU; the battery power management unit is used to monitor the power status of the hand control box's built-in battery in real time, including information such as the remaining power and charging status, and transmit this information to the hand control box MCU. After the hand control box MCU receives the ambient temperature and battery power data, it will display the corresponding information on the OLED display; monitoring of the ambient temperature helps prevent equipment failures caused by extreme temperature conditions, while monitoring of the battery power can prevent sudden shutdowns due to depletion of power.

[0026] In one embodiment of the present invention, the host MCU is connected to a status indication circuit and a control circuit for connecting buttons and a control handle.

[0027] To implement the above technical solution, the status indicator circuit displays the operating status of the main unit, such as normal operation and fault alarm, through LED lights or other indicators. The control circuit is connected to the buttons and control handle, allowing the user to directly operate the crane physically. When the user presses a button or moves the control handle, the control circuit converts these actions into electrical signals and transmits them to the main unit MCU. After receiving the signals from the control circuit, the main unit MCU controls the operation of the crane motor according to the preset program logic, enabling various crane operations such as starting, stopping, raising, lowering, turning left, and turning right.

[0028] In one embodiment of the present invention, the input power supply is connected to the host MCU via an EMC protection circuit and a power supply voltage sampling circuit in sequence.

[0029] To implement the above technical solution, the input power first passes through the EMC (electromagnetic compatibility) protection circuit, which suppresses high-frequency noise and interference on the power line, protecting the host MCU from external electromagnetic interference and ensuring stable system operation. After being processed by the EMC protection circuit, the power then passes through the power supply voltage sampling circuit, which monitors and samples the current power supply voltage in real time and transmits this voltage value to the host MCU. The host MCU performs corresponding processing and judgment based on the voltage information received from the power supply voltage sampling circuit. For example, if the voltage is detected to be too high or too low, the host MCU can take protective measures, such as cutting off the power supply or issuing an alarm signal, to prevent damage to the crane motor or other electronic components.

[0030] In one embodiment of the present invention, the EMC protection circuit is further connected to an AC / DC converter and a DC / DC converter in sequence, and the DC / DC converter is connected to the host MCU and the motor drive circuit.

[0031] To implement the above technical solution, the AC / DC converter is used to convert the input alternating current into direct current, and the DC / DC converter further converts the direct current generated by the AC / DC converter into a voltage level suitable for specific applications. The power supply voltage after EMC protection is ensured to be within a safe range, and the data is fed back to the host MCU for further processing or adjustment. The host MCU controls the crane's motor through the motor drive circuit based on the power supply voltage and other control signals to achieve precise speed and torque control; by using AC / DC and DC / DC converters, the system can provide stable and appropriate power to the host MCU and motor drive circuit, reducing the risk of failure caused by power supply fluctuations.

[0032] As described above, the wireless remote control controller with OLED display of the present invention has the following beneficial effects:

[0033] 1. Enhanced user interaction experience: By using an OLED display on the hand control box to display operating status, operators can intuitively obtain key information such as the communication signal quality between the remote control box and the host, the hand control box battery voltage, ambient temperature, crane operation, limit indications, crane operating voltage, crane operating current, and crane operating temperature. This clear and concise display method makes human-machine interaction more friendly, and operators can easily understand and grasp the real-time status of the equipment.

[0034] 2. Improved fault diagnosis efficiency: When the crane is installed in an electromagnetic interference environment, or when communications are subject to co- or adjacent-frequency interference, the master-slave communication status indicator on the hand control box helps operators quickly determine if communication anomalies exist. Interference can be effectively resolved by relocating the installation location or performing frequency hopping. Furthermore, the hand control box's OLED display shows real-time communication signal quality, making verification quick and easy, and helping to quickly troubleshoot on-site signal interference issues.

[0035] 3. Improved Work Efficiency and Safety: If the crane reaches a limit position, the OLED display on the hand control box will display the limit trigger signal in real time. This allows the operator to accurately determine the crane's operating position even when they cannot directly see the crane, allowing them to perform subsequent operations in a timely manner. This design not only improves work efficiency but also enhances work safety, preventing operational errors caused by restricted vision.

[0036] 4. Optimized Battery Management: The hand control box's built-in MCU monitors battery voltage in real time and calculates remaining charge, displaying this information on the OLED display via a battery level icon. This design reminds operators to replace batteries promptly, preventing crane control issues caused by a dead battery. Proper battery management helps extend battery life and ensure stable equipment operation.

[0037] 5. Preventing Motor Failures: The manual control box displays the crane input voltage numerical value on its OLED screen, allowing operators to promptly identify abnormalities in the main engine voltage. This continuous monitoring helps prevent motor burnout due to undervoltage. Especially in cases where the cable used on-site is too thin or the input power voltage level is incorrect, this device can detect this in advance and alert personnel to take appropriate measures (such as replacing the cable or correcting the voltage level), thereby avoiding abnormal operation and preventing further failures.

[0038] 6. Strong adaptability: This utility model is suitable for crane control needs in various complex environments, maintaining good performance in places with strong electromagnetic interference and limited vision. Its flexible configuration and powerful functions enable it to meet the personalized needs of different users and provide a high-quality user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 Shown is a structural block diagram of the present utility model.

[0040] Figure 2 Shown is the structural block diagram of the hand control box.

[0041] Figure 3 Shown is the structural block diagram of the host. DETAILED DESCRIPTION

[0042] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand the other advantages and functions of the present invention from the contents disclosed in this specification. It should be noted that the following embodiments and features in the embodiments can be combined with each other unless there is a conflict.

[0043] See also Figures 1 to 3 The utility model provides a wireless remote control controller with an OLED display, comprising a hand control box and a host installed on a crane and communicating wirelessly with the hand control box. The hand control box comprises a hand control box MCU, a hand control box-end radio frequency unit connected to the hand control box MCU, control buttons, LED status indicators, and an OLED display screen; the host comprises a host MCU, a host-end radio frequency unit that wirelessly communicates with the hand control box-end radio frequency unit. A motor control interface is provided on the motor of the crane, and the host MCU is connected to the motor control interface through a motor drive circuit.

[0044] The hand control box MCU is responsible for processing the control button commands input by the user, and wirelessly interacts with the host RF unit through the hand control box end RF unit, converting these commands into wireless signals and sending them to the host; the user sends instructions by operating the control buttons on the hand control box (such as power on, power off, uplink, downlink, etc.), and these instructions are received and processed by the hand control box MCU; the LED status indicator on the hand control box is used to provide the user with instant feedback, such as operation confirmation, status indication or error prompt; the OLED display is used to display more detailed information, such as the battery level of the hand control box, ambient temperature, signal strength, crane operation status, limit indication, motor voltage, current and temperature, etc.; the host MCU is connected to the control interface of the crane motor through the motor drive circuit to achieve precise speed and torque control; it also receives the wireless signals sent by the hand control box and controls the operation of the motor according to these signals to realize the start, stop, rise, fall and other actions of the crane.

[0045] Through wireless remote control, operators can operate in dangerous areas away from the crane, reducing safety risks; the OLED display provides rich visual feedback, allowing operators to understand the crane's operating status in real time, improving the convenience and intuitiveness of operation; information such as motor voltage, current and temperature on the OLED display helps to quickly diagnose and solve potential fault problems; through the combination of OLED display and LED indicator lights, operators can clearly see control information even in dim light or harsh environments, enhancing environmental adaptability.

[0046] A motor operating temperature detection circuit, a motor operating current detection circuit, and a limit switch monitoring circuit are connected between the motor and the host MCU. By monitoring the motor operating temperature, current, and the limit switch status of the crane, these monitoring signals will be transmitted to the host MCU, which will determine whether to take corresponding control measures based on these signals, such as reducing the motor speed, stopping the motor operation, etc. At the same time, these monitoring information will also be transmitted to the hand control box via wireless communication and displayed on the OLED display, making it convenient for users to understand the operating status of the crane, ensuring that the motor operates within a safe range, and avoiding equipment damage caused by overheating or overcurrent; through the limit switch monitoring circuit, the operating range of the crane can be monitored in real time to prevent the crane from operating beyond the predetermined range and improve safety. The OLED display provides real-time visual feedback on the motor status, allowing operators to quickly respond to any abnormal situation.

[0047] The hand control box MCU is connected to an ambient temperature detection circuit for detecting the ambient temperature and a battery power management unit for detecting the battery level of the hand control box. The ambient temperature detection circuit is used to monitor the ambient temperature around the hand control box in real time and transmit the detected temperature data to the hand control box MCU. The battery power management unit is used to monitor the battery level of the hand control box in real time, including information such as the remaining power and charging status, and transmit this information to the hand control box MCU. After receiving the ambient temperature and battery level data, the hand control box MCU will display the corresponding information on the OLED display. Ambient temperature monitoring helps prevent equipment failures caused by extreme temperature conditions, while battery level monitoring can prevent sudden shutdowns due to power depletion.

[0048] The host MCU is connected to a status indicator circuit and a control circuit for connecting buttons and a control handle. The status indicator circuit displays the host's operating status, such as normal operation or fault alarm, via LED lights or other indicators. The control circuit is connected to the buttons and control handle, allowing the user to directly physically operate the crane. When the user presses a button or moves the control handle, the control circuit converts these actions into electrical signals and transmits them to the host MCU. After receiving the signals from the control circuit, the host MCU controls the operation of the crane's motor according to pre-set program logic, enabling various crane operations such as starting, stopping, raising, lowering, turning left, and turning right.

[0049] The input power is connected to the host MCU via an EMC protection circuit and a power supply voltage sampling circuit. The input power first passes through the EMC (electromagnetic compatibility) protection circuit, which suppresses high-frequency noise and interference on the power line, protecting the host MCU from external electromagnetic interference and ensuring stable system operation. After being processed by the EMC protection circuit, the power then passes through the power supply voltage sampling circuit, which monitors and samples the current power supply voltage in real time and transmits this voltage value to the host MCU. The host MCU then processes and determines the voltage information received from the power supply voltage sampling circuit. For example, if the voltage is detected to be too high or too low, the host MCU can take protective measures, such as cutting off the power supply or issuing an alarm, to prevent damage to the crane motor or other electronic components.

[0050] The EMC protection circuit is also connected in sequence to an AC / DC converter and a DC / DC converter, and the DC / DC converter is connected to the host MCU and the motor drive circuit. The AC / DC converter is used to convert the input alternating current into direct current, and the DC / DC converter further converts the direct current generated by the AC / DC converter into a voltage level suitable for a specific application. The power supply voltage after EMC protection is ensured to be within a safe range and the data is fed back to the host MCU for further processing or adjustment. The host MCU controls the motor of the crane through the motor drive circuit according to the power supply voltage and other control signals to achieve precise speed and torque control. By using AC / DC and DC / DC converters, the system can provide a stable and appropriate power supply to the host MCU and the motor drive circuit, reducing the risk of failure caused by power supply fluctuations.

[0051] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Any equivalent modifications or variations made by persons skilled in the art without departing from the spirit and technical concepts disclosed herein shall be encompassed by the claims of the present invention.

Claims

1. A wireless remote controller with an OLED display, comprising a hand control box and a host computer mounted on a crane and communicating wirelessly with the hand control box, characterized in that: The hand control box includes a hand control box MCU, a hand control box end radio frequency unit connected to the hand control box MCU, a control button, an LED status indicator light and an OLED display screen; The host includes a host MCU and a host-side RF unit that wirelessly communicates with the hand-control box-side RF unit. The motor of the crane is provided with a motor control interface, and the host MCU is connected to the motor control interface through a motor drive circuit.

2. The wireless remote controller with OLED display according to claim 1, characterized in that A motor operating temperature detection circuit, a motor operating current detection circuit, and a limit switch monitoring circuit are connected between the motor and the host MCU.

3. The wireless remote controller with OLED display according to claim 1, characterized in that: The hand control box MCU is connected to an ambient temperature detection circuit for detecting the ambient temperature and a battery power management unit for detecting the battery power of the mobile phone box.

4. The wireless remote controller with OLED display according to claim 1, characterized in that: The host MCU is connected to a status indication circuit and a control circuit for connecting buttons and a control handle.

5. The wireless remote controller with OLED display according to claim 1, characterized in that: The input power supply is connected to the host MCU through an EMC protection circuit and a power supply voltage sampling circuit in sequence.

6. The wireless remote controller with OLED display according to claim 5, characterized in that: The EMC protection circuit is further connected to an AC / DC converter and a DC / DC converter in sequence, and the DC / DC converter is connected to the host MCU and the motor drive circuit.

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