Wireless remote controller with multifunctional state LED display

Abstract

The utility model relates to the technical field of wireless control, and provides a wireless remote controller with multifunctional state LED display, which comprises a manual control box, a host and a crane, the manual control box comprises a control button, a power supply management unit, an MCU processor unit, a radio frequency wireless signal transmit-receive unit and an LED signal indication unit; the host comprises an MCU central processor, an EMC protection circuit, a power supply voltage sampling circuit, a radio frequency wireless signal transmit-receive unit, a button and wired handle control circuit, a motor drive circuit, a motor control interface, a motor, an audible and visual alarm and a limit switch detection circuit. And a limit switch is arranged at a position needing to be limited during operation of the crane. The manual control box end of the wireless remote controller with the multifunctional state LED display realizes the multifunctional state LED display, can remind an operator of limiting triggering, prompts communication interference, battery electric quantity and voltage abnormal states, ensures the real-time performance of a normal control instruction, and improves the practicability at the same time.

Description

Technical Field

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

[0002] Various electric hoists and light cranes have been widely used in various aspects of social production and life, and the corresponding controllers have also developed accordingly. Initially, the operating handle of the crane controller was connected to the main machine by a cable, but when operating, the operator stood near the crane, which posed a safety risk. Therefore, wireless remote controls were developed later.

[0003] The wireless remote control removes the cable connection between the hand control box and the host, and uses wireless signals to control the crane. Wireless communication is used between the hand control box and the host, which expands the control distance. The operator can control the crane operation without standing next to the machine, which greatly facilitates the operator, improves the safety of use, and expands the use scenarios.

[0004] However, the wireless remote control box currently on the market is only equipped with a power on / off status indicator light, a green light indicator for power on operation, and a red light indicator for power off operation, which only controls the crane's movements. Not only is the function single, but the existing wireless remote control still has some shortcomings, such as:

[0005] 1) Crane operation limit problem. There is a height difference between the crane and the operator. Due to the limitations of vision, angle and other factors, the operator cannot find the crane operation triggering the limit switch in time, which not only reduces work efficiency, but also poses certain safety risks.

[0006] 2) The host loses control due to wireless signal loss. When the radio frequency signal emitted by the hand control box is interfered, the host will not receive the control signal and will run out of control.

[0007] 3) The battery of the hand control box is dead, resulting in abnormal control.

[0008] 4) The power supply voltage at the construction site is unstable and low, causing machine damage. Utility Model Content

[0009] The utility model provides a wireless remote control controller with a multifunctional status LED display, aiming to solve the existing problems.

[0010] The utility model is implemented as follows: a wireless remote control controller with a multi-function status LED display, the wireless remote control controller with a multi-function status LED display comprises: a hand control box, a host and a crane, the hand control box and the host use wireless radio frequency communication, and the signal between the hand control box and the host is a two-way communication;

[0011] The hand control box includes a control button, a power supply management unit, an MCU processor unit, a radio frequency wireless signal transceiver unit, and an LED signal indication unit. The control button is the corresponding function control button of the remote control. The radio frequency wireless signal transceiver unit is responsible for the radio frequency communication between the hand control box and the host, sends the instructions of the MCU processor unit to the host through radio frequency signals, receives the signal sent back by the host and transmits it to the MCU processor unit for processing. The LED signal indication unit includes 5 LED indicator lights, which are marked as LED1, LED2, LED3, LED4 and LED5 respectively. LED1 to LED4 indicate the master-slave communication / host voltage status, the battery voltage status of the hand control box, the up limit status and the down limit status respectively. LED5 is a red and green two-color indicator light.

[0012] The host includes an MCU central processor, an EMC protection circuit, a power supply voltage sampling circuit, a radio frequency wireless signal transceiver unit, a button and wired handle control circuit, a motor drive circuit, a motor control interface, a motor, an audible and visual alarm, and a limit switch detection circuit;

[0013] A limit switch is installed at the limit position where the crane needs to run. The contact signal of the limit switch passes through the level signal conversion circuit and is connected to the MCU processor of the host. The MCU monitors the changes of the limit signal in real time. When the limit is triggered, the crane stops running and immediately triggers the sound and light alarm to provide sound and light limit indications on the host end.

[0014] Preferably, the control buttons include functions such as power on, power off, up, down, left, and right.

[0015] Preferably, when the hand control box is in the on state, any button is pressed, the LED5 indicator flashes green, and the hand control box sends a corresponding control radio frequency signal; when the hand control box is in the off state, any button is pressed, the LED5 indicator flashes red.

[0016] Preferably, when no button on the manual control box is pressed, all indicator lights are off.

[0017] Preferably, the input power supply of the host is AC220V or AC380V, which, after voltage conversion, supplies power to the MCU central processing unit and the driving circuit respectively.

[0018] Preferably, the voltage signal of the host input power supply enters the MCU central processing unit through the power supply voltage sampling circuit. The MCU central processing unit performs A / D analog-to-digital conversion, converts the voltage analog signal into a digital signal, and compares it with the rated voltage preset in the MCU internal memory. If it exceeds the allowable range, the sound and light alarm is immediately triggered to provide sound and light alarm indications on the host side.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] 1. The hand control box end of the wireless remote controller with multi-function status LED display uses LED to display master-slave communication / host voltage, hand control box battery voltage, and limit signal, realizing multi-function status LED display, and high communication efficiency, ensuring the real-time nature of normal control instructions, and there is no master-slave communication message collision, which improves practicality.

[0021] 2. The wireless remote controller with multi-function status LED display monitors the changes of limit signals in real time through the host's MCU processor. When the limit is triggered, the crane stops running and immediately triggers the sound and light alarm to give sound and light limit indications on the host end to remind the operator, avoiding safety hazards caused by excessive crane operation.

[0022] 3. The wireless remote controller with multi-function status LED display observes the master-slave communication status through LED1 on the hand control box. The operator can see whether the communication between the hand control box and the host is abnormal. If the control abnormality is caused by communication interference, the cause of the interference can be determined and quickly verified.

[0023] 4. The hand control box of the wireless remote controller with a multi-function status LED display has a built-in MCU processing unit that monitors the battery voltage in real time. When the battery power is lower than the set threshold voltage, it means that the battery is exhausted. The corresponding indicator light indicates to remind the operator to replace the battery in time to avoid abnormal crane control problems caused by battery exhaustion.

[0024] 5. The host of the wireless remote control controller with a multi-function status LED display collects the incoming power voltage of the crane. When the difference between the incoming power voltage and the rated voltage of the equipment exceeds the set threshold, the hand control box indicates the abnormal voltage status, reminding the operator to troubleshoot the problem and avoid damage to the machine due to unstable power supply. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 It is a system block diagram of the utility model;

[0027] Figure 2 This is a block diagram of the hand control box of the utility model;

[0028] Figure 3It is a block diagram of a host computer of the present utility model. DETAILED DESCRIPTION

[0029] In order to more fully understand the technical content of the utility model, the technical solution of the utility model is further introduced and illustrated in conjunction with specific embodiments below, but it is not limited to this. The technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the utility model.

[0030] In the description of the embodiments of the present utility model, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate an orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, it is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0031] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be connected, detachably connected, or integrated; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] Example 1

[0033] refer to Figures 1 to 3The wireless remote control controller with multi-function status LED display includes: a hand control box, a host and a crane. Wireless radio frequency communication is adopted between the hand control box and the host. The signal between the hand control box and the host is a two-way communication. The hand control box sends control instructions to the host, and the host executes the instructions; the host returns the operation signal of the crane to the hand control box, and the hand control box displays the operation status of the host. The hand control box includes control buttons, a power supply management unit, an MCU processor unit, a radio frequency wireless signal transceiver unit, and an LED signal indication unit. The control buttons are the corresponding function control buttons of the remote control, including power on, power off, up, down, left, right and other functions, corresponding to the actual control requirements of the crane. The radio frequency wireless signal transceiver unit is responsible for the radio frequency communication between the hand control box and the host, sends the instructions of the MCU processor unit to the host through radio frequency signals, receives the signals sent back by the host and transmits them to the MCU processor unit for processing. The LED signal indication unit includes 5 LED indicators, which are marked as LED1, LED2, LED3, LED4 and LED5. LED1 indicates the master-slave communication / host voltage status. Through the master-slave communication status indication on the hand control box, the operator can see whether the communication between the hand control box and the host is abnormal. LED2 indicates the battery voltage status of the hand control box, LED3 indicates the upward limit status, LED4 indicates the downward limit status, and LED5 is a red and green dual-color indicator. When the hand control box is in the power-on state, any button is pressed, the LED5 indicator flashes green and sends the corresponding control radio frequency signal; when the hand control box is in the power-off state, any button is pressed, and the LED5 indicator flashes red. When no button is pressed on the hand control box, in order to save battery power consumption, it is in a low-power standby state and all indicators are off. The host includes an MCU central processor, an EMC protection circuit, a power supply voltage sampling circuit, a radio frequency wireless signal transceiver unit, a button and wired handle control circuit, a motor drive circuit, a motor control interface, a motor, an audible and visual alarm, and a limit switch detection circuit. The input power of the host is AC220V or AC380V. After voltage conversion, it supplies power to the MCU central processor and the drive circuit respectively. The voltage signal of the host input power passes through the power supply voltage sampling circuit and enters the MCU central processor. The MCU central processor performs A / D analog-to-digital conversion, converts the voltage analog signal into a digital signal, and compares it with the rated voltage preset in the MCU internal memory. If it exceeds the allowable range, the sound and light alarm will be triggered immediately to give sound and light alarm indications on the host side.Limit switches are installed at the limit positions (such as the upward limit position and the downward limit position) where the crane is required to run. The contact signal of the limit switch passes through the level signal conversion circuit and is connected to the MCU processor of the host. The MCU monitors the changes of the limit signal in real time. If the crane reaches the limit position, the limit sensor is triggered, the crane stops running, and immediately performs sound and light limit indications on the host end, displaying the limit trigger signal. Even if the crane is blocked by obstacles, the operating position of the crane can be obtained and subsequent operations can be performed in time, improving work efficiency and work safety.

[0034] Working principle: When the power button is pressed, take the upward control as an example. Initially, no button is pressed and LED1 is off. 1) After the hand control box is turned on, press the upward control button, LED5 green indicator flashes, and the hand control box sends the upward control signal to the host. The hand control box MCU detects the battery supply voltage at a fixed period through the battery power management unit and compares it with the threshold voltage set in the internal memory. When the battery voltage is lower than the set threshold, it means that the battery is out of power. At this time, LED2 flashes to prompt the operator to replace the battery. The purpose of LED2 flashing is to save power. If LED2 is always on when the battery is out of power, it will bring additional power consumption and accelerate the depletion of the battery. 2) After the host is powered on, it remains in operation and collects the power supply voltage and limit sensor input signal in real time. 3) When the host receives the upward command through the RF wireless signal transceiver unit, it starts to control the rotation of the crane motor. At the same time, the host immediately sends a response message to the hand control box. The response message content includes the host power supply voltage status and limit signal status. The hand control box receives the response message returned by the host. When the host power supply voltage in the response message is abnormal, LED1 is always on, indicating that the host voltage is abnormal; when the up limit is triggered in the response message, LED3 is always on, indicating that the up limit is triggered, otherwise, the indicator light is off; similarly, when the down limit is triggered, LED4 is always on, indicating that the down limit is triggered. 4) After the hand control box sends the up control signal, it will start the internal timer for timing. If the host's response message is received within the set time, LED1 will flash quickly, for example, light up for 200ms and then turn off; if the host's response message is not received within the set time T1, LED1 remains off. 5) While the up button is kept pressed, the hand control box sends control messages to the host at fixed intervals of time T2, and T2>T1. 6) In summary, after the up button is pressed, the operator can judge the master-slave communication status between the hand control box and the host based on the state of LED1. If the LED1 indicator does not flash or flashes intermittently after pressing the button, it means that the communication between the hand control box and the host is seriously lost and the RF signal is interfered; if LED1 flashes at a fixed period without obvious intermittence, it means that the communication between the hand control box and the host is good and the interaction is stable.

[0035] It should be noted that the electrical components appearing in this application document are all electrically connected to the external main controller and the 220V AC power supply, and the main controller can be a conventional known device that controls the servo motor, contact sensor, processor, alarm module and drive module, etc., and the machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, so no specific description will be given here.

[0036] The embodiments described above are only part of the embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any ordinary technician in the field can make equivalent substitutions or changes within the technical scope disclosed by the present invention according to the technical solution and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A wireless remote control controller with a multi-function status LED display, characterized in that: The wireless remote controller with multi-function status LED display includes: a hand control box, a host and a crane. The hand control box and the host use wireless radio frequency communication, and the signal between the hand control box and the host is two-way communication; The hand control box includes a control button, a power supply management unit, an MCU processor unit, a radio frequency wireless signal transceiver unit, and an LED signal indication unit. The control button is the corresponding function control button of the remote control. The radio frequency wireless signal transceiver unit is responsible for the radio frequency communication between the hand control box and the host, sends the instructions of the MCU processor unit to the host through radio frequency signals, receives the signal sent back by the host and transmits it to the MCU processor unit for processing. The LED signal indication unit includes 5 LED indicator lights, which are marked as LED1, LED2, LED3, LED4 and LED5 respectively. LED1 to LED4 respectively indicate the master-slave communication / host voltage status, the battery voltage status of the hand control box, the up limit status and the down limit status. LED5 is a red and green two-color indicator light. The host includes an MCU central processor, an EMC protection circuit, a power supply voltage sampling circuit, a radio frequency wireless signal transceiver unit, a button and wired handle control circuit, a motor drive circuit, a motor control interface, a motor, an audible and visual alarm, and a limit switch detection circuit; A limit switch is installed at the limit position where the crane needs to run. The contact signal of the limit switch passes through the level signal conversion circuit and is connected to the MCU processor of the host. The MCU monitors the changes of the limit signal in real time. When the limit is triggered, the crane stops running and immediately triggers the sound and light alarm to provide sound and light limit indications on the host end.

2. The wireless remote controller with multi-function status LED display as claimed in claim 1, characterized in that: The control buttons include power on, power off, up, down, left, and right functions.

3. The wireless remote controller with multi-function status LED display as claimed in claim 1, characterized in that: When the hand control box is in the power-on state, any button is pressed, the LED5 indicator light flashes green, and the hand control box sends a corresponding control radio frequency signal; when the hand control box is in the power-off state, any button is pressed, the LED5 indicator light flashes red.

4. The wireless remote controller with multi-function status LED display as claimed in claim 1, characterized in that: When no button is pressed on the hand control box, all indicator lights are off.

5. The wireless remote controller with multi-function status LED display as claimed in claim 1, characterized in that: The input power of the host is AC220V or AC380V, which is used to power the MCU central processor and the drive circuit after voltage conversion.

6. The wireless remote controller with multi-function status LED display as claimed in claim 1, characterized in that: The voltage signal of the host input power supply enters the MCU central processing unit through the power supply voltage sampling circuit. The MCU central processing unit performs A / D analog-to-digital conversion, converts the voltage analog signal into a digital signal, and compares it with the rated voltage preset in the MCU internal memory. If it exceeds the allowable range, the sound and light alarm will be triggered immediately to give sound and light alarm indications on the host side.

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