WO2008031323A1

WO2008031323A1 - Wireless remote transmitter and operational method thereof

Info

Publication number: WO2008031323A1
Application number: PCT/CN2007/002492
Authority: WO
Inventors: Stan Smith; Bobby Duane Taylor
Original assignee: Mile Marker (Shenzhen) Limited
Priority date: 2006-08-23
Filing date: 2007-08-20
Publication date: 2008-03-20
Also published as: CN101131791A

Abstract

A wireless remote transmitter includes a control chip (4) controlling the indicator (6) and detecting voltage and buttons; the indicator (6) indicating the state of the winch; the switch control circuit (7) which controls the winch to turn in one direction or in the opposite direction; the 2.4GHz wireless communication module (8) communicating with receiver; the circuit detecting voltage of battery (2). The programmable interface (1) communicates with the control chip (4). The 3V power supply input (5) is applied to the 2.4GHz wireless communication module (8) when the switch of power supply (3)is turned on. The indicator (6), the wireless communication module (8), the circuit (2) detecting voltage and the switch control circuit (7) are connected to the control chip (4). An operational method of the wireless remote transmitter includes: initializing the wireless remote transmitter, and making it work normally; detecting whether a button is depressed, and controlling on the basis of the result.

Description

Wireless remote controller and working method thereof

The invention relates to a wireless remote controller and a control method thereof. Background technique

Electric winches are mainly used in off-road vehicles, agricultural vehicles, ATV sports cars, yachts, and other special vehicles. It is a self-protection and traction device for vehicles and vessels. It can self-rescue in harsh environments such as snow, swamps, deserts, beaches, muddy mountain roads, and may perform obstacle removal, hauling items, installation facilities, etc. under other conditions. It is an indispensable safety device for petroleum, hydrology, environmental protection, forestry, transportation, public security, border defense, and other field sports.

The working mechanism inside the electric winch is: the electric power of the car battery first drives the electric motor. The drum rotates to drive the drive shaft, and the drive shaft drives the planetary gears to produce a powerful reduction ratio. The increased torque is then transmitted back to the drum, which drives the cable. There is a clutch between the motor and the gear that can be passed through a handle switch. The brake unit is inside the drum and the drum is automatically locked when the cable is tightened.

When the electric winch is used, it is usually operated by the buttons on the remote control. However, the existing remote controller is not intelligent enough, and has only a simple function of transmitting and receiving signals. Summary of the invention

The technical problem to be solved by the present invention is to overcome the deficiencies of the above prior art and confirm the present Provide an intelligent, automated wireless remote control and its working method. In order to solve the above technical problem, the present invention provides a wireless remote controller, including: a main controller MCU for controlling an indicator light, detecting a voltage and detecting a button; and an indicator light for indicating a state of the winch;

a switch control circuit for forward and reverse rotation of a wireless control winch;

a wireless communication module for communicating with a wireless remote control receiving box; and a detecting circuit for detecting a battery voltage of the remote controller itself;

The indicator light, the wireless communication module, the battery voltage detecting circuit, and the switch control circuit are respectively connected to the MCU.

Further, the MCU includes a chip U3.

Further, the indicator light includes a light emitting diode D1, which turns green when the winch is in a forward rotation state; it turns red when the winch is in an inverted state; and alternately flashes red and green when in an alarm state .

Further, the wireless communication module includes a chip U1 and an antenna connected thereto

Al.

Further, the battery voltage detecting circuit includes a connected resistor R4 and a capacitor

Cl.

Further, the switch control circuit includes switches Sl, S2, resistors R8, R6, R7, R5, and a capacitor C2.

The invention also provides a working method of a wireless remote controller, comprising the following steps: a. The wireless remote controller performs initialization and enters a normal working mode;

b. detect if a button is pressed; and C. Control processing based on the test results.

Further, the step a further includes the following steps:

Al. The wireless remote controller is initialized and configured to receive mode;

A2. Check if the data receiving flag is 1 . If not, continue checking until the 500ms time expires. If it is 1 or 500ms, the time is set to send mode.

Further, if it is detected in the step b that a button is pressed, the step c further includes the following steps:

Cl. If it is "IN", send a signal to turn on the IN relay, the IN indicator lights up, and the winch is in the forward rotation state;

C2. If it is "OUT", send a signal, turn on the OUT relay, the OUT indicator lights, and the winch is in the reverse state.

Further, if it is detected in step b that no button is pressed, the step c further includes the following steps:

Cl'. starts counting down for 10s, if it reaches 10s, it enters power saving mode; and c2,. If it is not 10s, it starts to detect whether the battery voltage of the wireless remote controller is insufficient, and if so, starts the wireless remote controller low voltage alarm; , first configure the wireless remote controller to send mode, and then start detecting whether the car battery voltage is insufficient. If yes, start the car battery low voltage alarm; if not, configure the wireless remote controller to send mode, return to step cl, .

The invention has the following beneficial effects: By introducing the MCU and other functional circuit modules, not only the control of the forward rotation and the reverse rotation of the winch can be realized, but also the low voltage alarm and the power saving mode processing mechanism are provided, and the wireless remote controller is greatly improved. Intelligent, automated water Flat. DRAWINGS

1 is a schematic diagram showing the external connection of the wireless remote controller of the present invention.

2 is a block diagram showing the circuit principle of the wireless remote controller of the present invention.

3a-3b are circuit connection diagrams of the motor controller of the present invention.

4 is a flow chart of a method of operation of the wireless remote controller of the present invention. detailed description

The invention is described in detail below with reference to the accompanying drawings.

Referring to FIG. 1 , the motor controller of the present invention is connected to the motor of the winch through three cables of yellow, red and green, is connected to the wired remote controller through a quick plug, and can communicate with the wireless remote controller, and is powered by a 12V battery. .

Referring to FIG. 2 again, the motor controller of the present invention comprises a main controller MCU, an indicator light connected to the MCU, a switch control circuit, a wireless communication module, and a battery voltage detecting circuit.

Please also refer to Figure 3a. The main controller MCU is the chip U3, which is mainly used to control the indicator light, detect the voltage and detect the button.

The indicator light includes a light-emitting diode D1 which turns green when the winch is in the "IN" (forward) state; it turns red when the winch is in the "OUT" state; when it is in an alarm state, The red and green alternately flashes.

The switch control circuit is used for wirelessly controlling the forward and reverse rotation of the winch, including the switch Sl, S2, resistors R8, R6, R7, R5, and capacitor C2.

The battery voltage detecting circuit is used for detecting the battery voltage of the remote controller itself, is connected with the power source, and is used for detecting the battery voltage of the power supply. When the power supply voltage is insufficient, the low voltage alarm is entered, which includes the connected resistor R4 and the capacitor C1.

The wireless communication module has a frequency of 2.4 GHz and is used to communicate with the wireless remote control receiver box (shown in Figure 1). Please refer to FIG. 3b, which is a circuit connection diagram of the wireless communication module. It mainly includes a chip U1 and an antenna Al connected thereto.

The invention also provides a working method of the wireless remote controller. Please refer to FIG. 4, and the specific process is as follows:

Step one, the wireless remote controller initializes, the clock is 8MHz, and is configured to receive mode. Then check if the data receiving flag is 1, if not, continue to check until the 500ms timing time arrives; if it is 1 or 500ms timing time, the system clock = 31.25KHz, configured as the transmission mode, ready to send the "IN" signal and The "OUT" signal causes the remote to go into normal operating mode to control the winch.

Step 2, check if there is a button press.

1. If there is a button press, it is further judged whether "IN" or "OUT" is pressed:

(1) If it is "IN", send a signal, turn on the IN relay, the IN indicator lights up, and the winch is in the "IN" state (forward rotation);

(2) If it is 'OUT', send a signal, turn on the OUT relay, the OUT indicator lights up, and the winch is in the "OUT" state (reverse).

2. If there is no button press, it will count down for 10s first. If it reaches 10s, it will enter the power saving mode. At this time, it will also detect whether there is a button press. If there is, it will be different according to the above. The key value is processed accordingly, and if not, it continues to be in the power saving mode.

If it is not 10s (controlled by timer), it will start to detect if the battery voltage of the wireless remote controller is insufficient. If it is, then start the wireless remote controller low voltage alarm; if not, Beij first configures the wireless remote controller to send mode, then Start to detect if the car battery voltage is insufficient. If yes, start the car battery low voltage alarm; if not, turn the wireless remote control into normal working state, that is, configure the transmission mode, and then count down.

The wireless remote controller and the working method thereof of the invention can not only realize the control of forward and reverse rotation of the winch by introducing the MCU and other functional circuit modules, but also provide a low voltage alarm and a power saving mode processing mechanism, thereby greatly improving the wireless remote control. The level of intelligence and automation.

Claims

Rights request

1. A wireless remote controller, comprising:

Main controller MCU for controlling the indicator light, detecting voltage and detecting the button; indicator light for indicating the state of the winch;

The wireless remote controller according to claim 1, wherein: said MCU comprises a chip U3.

3. The wireless remote controller according to claim 1, wherein: the indicator light comprises a light emitting diode D1, and when the winch is in a forward rotation state, it becomes green; when the winch is in an inverted state, it becomes Red; when in the alarm state, it flashes red and green alternately.

4. The wireless remote controller according to claim 1, wherein: said wireless communication module comprises a chip U1 and an antenna A1 connected thereto.

The wireless remote controller according to claim 1, wherein: said battery voltage detecting circuit comprises a connected resistor R4 and a capacitor C1.

6. The wireless remote controller according to claim 1, wherein: said switch control circuit comprises switches Sl, S2, resistors R8, R6, R7, R5, and a capacitor C2.

7. A method of operating a wireless remote control, comprising the steps of:

a. The wireless remote controller is initialized and enters the normal working mode;

b. detect if a button is pressed;

c The detection result is controlled.

8. The control method according to claim 7, wherein: the step a further comprises the following steps:

9. The control method according to claim 7, wherein: if it is detected in the step b that a button is pressed, the step c further comprises the following steps: cl. If it is "IN", then sending Signal, turn on the IN relay, the IN indicator lights up, and the winch is in the forward rotation state;

C2. If it is "OUT", send a signal, open the OUT relay, OUT indication The lamp lights up and the winch is in the reverse state.

10. The control method according to claim 7, wherein: if it is detected in the step b that no button is pressed, the step c further comprises the steps of: cl,. starting the countdown for 10s, if it is 10s Then enter the power saving mode;

C2,. If it is not 10s, it will detect if the battery voltage of the wireless remote controller is insufficient. If it is, start the wireless remote controller low voltage alarm; if not, first configure the wireless remote controller to send mode, then start detecting the car battery. If the voltage is insufficient, if it is, start the car battery low voltage 4 alarm; if not, configure the wireless remote control to send mode, return to step cl.