WO2009092272A1

WO2009092272A1 - Cable controller and its control method

Info

Publication number: WO2009092272A1
Application number: PCT/CN2008/073844
Authority: WO
Inventors: Stan Smith
Original assignee: Mile Marker (Shenzhen) Limited
Priority date: 2008-01-18
Filing date: 2008-12-30
Publication date: 2009-07-30
Also published as: CN101488020B; CN101488020A

Abstract

A cable controller (4) comprises: a main controller MCU (11) for controlling the indicator lamp (13), sampling and converting a rocker unit (15), and communicating with a winch motor controller (1); an indicator lamp (13) for indicating the winch motor (2) running forward or reversely; an indicator lamp driving circuit (12) for driving the indicator lamp (13); a communication interface unit (14) for wired communication with the winch motor controller (1); a rocker unit (15) for controlling the winch motor (2) to run forward or reversely by operating the rocker; the indicator lamp driving circuit (12), the communicate interface unit (14), and the rocker unit (15) are connected to the MCU. In addition, a control method for the cable controller (4) is provided.

Description

Wired remote controller and control method thereof

The invention belongs to the field of automotive electronics, and in particular relates to a wired 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 principle 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 and the drum 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. The existing wired remote control is not so intelligent, and has only a simple function of transmitting and receiving signals. Summary of the invention

The technical problem to be solved by the embodiments of the present invention is to overcome the deficiencies of the prior art described above, and to provide an intelligent, automated wired remote controller and a control method thereof. To solve the above technical problem, an embodiment of the present invention provides a wired remote controller, including: a main controller MCU for controlling an indicator light, sampling and converting a rocker unit, and communicating with a winch motor controller;

An indicator light for indicating the forward or reverse state of the winch motor;

An indicator driving circuit for driving the indicator light;

a communication interface unit for wired communication with a winch motor controller;

a rocker unit for controlling a forward or reverse rotation of a winch motor by operation of a rocker; the indicator driving circuit, the communication interface unit, and the rocker unit are all connected to

On the MCU.

An embodiment of the present invention further provides a method for controlling a wired remote controller, including the following steps:

a. Determine whether the key value is received, if yes, proceed to step b, if not, proceed to step d;

b. According to the received key value, the corresponding processing;

c to determine whether it is in the alarm state, if yes, first write the alarm state to the corresponding indicator buffer, then go to step d, if not, go directly to step d;

d. The control indicator will display the corresponding status.

The embodiments of the present invention have the following beneficial effects: By introducing an MCU and other functional circuit modules such as a rocker unit, the operation when communicating with the motor controller is more convenient, and the intelligent and automated level of the wired remote controller is greatly improved. In addition, independent IN button and OUT button are also provided, and the button can be directly operated to communicate with the winch motor controller, thereby improving the reliability of use. DRAWINGS

1 is a schematic diagram showing the external connection of a wired remote controller according to an embodiment of the present invention.

2 is a block diagram showing the circuit principle of a wired remote controller according to an embodiment of the present invention.

3 is a circuit connection diagram of a wired remote controller according to an embodiment of the present invention.

4 is a schematic flow chart showing a control method of a wired remote controller according to Embodiment 2 of the present invention. detailed description

The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

Referring to Fig. 1, in the embodiment of the present invention, the wired remote controller 4 communicates with the winch motor controller 1, and the winch motor controller 1 is connected to the motor of the winch 2 through a cable, which is powered by the 12V battery 3.

Referring to FIG. 2 again, the wired remote controller 4 of the embodiment of the present invention includes a main controller MCU 11 for controlling the indicator light 13, sampling and converting the rocker unit 15, and communicating with the winch motor controller 1;

An indicator light 13 for indicating the forward or reverse state of the winch motor 2;

An indicator driving circuit 12 for driving the indicator light 13;

a communication interface unit 14 for wired communication with the winch motor controller 1; a rocker unit for controlling the forward or reverse rotation of the winch motor by operation of the joystick

15;

The indicator driving circuit 12, the communication interface unit 14, and the rocker unit 15 are all connected to the MCU 11.

Please also refer to FIG. 3, the MCU includes a chip U1 having 1KByte. Flash, 64 Bytes of RAM, 128 Bytes of EEPROM, and 4 analog to digital converters AD.

The embodiment of the present invention further includes a keyboard unit for the user to press a corresponding function key as needed to obtain a corresponding function, the keyboard unit includes an independent IN button, an OUT button, and a keyboard circuit, and the keyboard circuit further includes The chip J3 is respectively connected to the resistors R11, R21, R31, and R41, and the variable resistor VR1, and the IN and OUT buttons are connected to the chip J3.

The indicator driving circuit comprises a chip U8 and resistors R8, R14, R9, R15, R10, R12, R13 and a capacitor C5 connected thereto.

The indicator light 13 includes an IN indicator and an OUT indicator. The IN indicator includes an LED D10. When the winch is in the forward rotation state, it turns green; the OUT indicator includes the LEDs D5 and D8, when the winch is in the reverse state. , it turns red; when in the alarm state, both indicators flash alternately red and green.

The rocker unit 15 achieves the purpose of control by using the joystick up or down, for example: when the joystick is operated upward, the red indicator light is on, which is an OUT command; when the joystick is operated downward, it is an IN command, and the light is on. green. In the process of the joystick action, it is the speed regulation process. With the special speed controller, you can pass the speed control effect.

In the embodiment of the present invention, the forward/reverse rotation of the winch motor can also be controlled by the independent IN and OUT buttons. When the IN button is pressed, the winch is in a forward rotation state, and the IN indicator turns green. When the OUT button is pressed, the winch is in the reverse state, and the OUT indicator turns red; when in the alarm state, the IN and OUT indicators are alternately flashing red and green. In addition, when the joystick unit fails, it can also Through the above independent IN, OUT button operation, the reliability of use is improved.

The embodiment of the invention further includes a power supply unit for supplying power, comprising: chips U3, J2, capacitors C8, C3, wherein the capacitor C8 is connected to the chips U3, J2, respectively, and the capacitor C5 is connected to the chip U3. Capacitors C8 and C3 are the filter capacitors for the power supply, reducing power supply ripple.

Referring to FIG. 4 again, a control method of the wired remote controller according to the second embodiment of the present invention includes the following steps:

b. According to the received key value, the corresponding processing;

d. The control indicator will display the corresponding status.

Further, the step b includes the following steps:

If the rocker of the rocker unit is operated upwards, the red indicator light is displayed in conjunction with the speed value and the OUT command is written into the indicator buffer;

If the joystick of the rocker unit is operated downward, the indicator light will be displayed in green and the IN command will be written to the indicator buffer.

After that, the checksum is calculated and the value is placed in the send buffer.

Finally, the data of the send buffer is sent to the MCU.

The embodiment of the invention introduces an MCU and other functional circuit modules such as a rocker unit, so that the operation when communicating with the motor controller is more convenient, and the cable is greatly improved. The level of intelligence and automation of the remote control. In addition, a separate IN button and OUT button are provided, and the button can be directly operated to communicate with the winch motor controller, thereby improving the reliability of use.

Claims

Rights request

1. A wired remote controller, comprising:

a main controller MCU for controlling the indicator light, sampling and converting the rocker unit, and communicating with the winch motor controller;

An indicator driving circuit for driving the indicator light;

On the MCU.

2. The wired remote controller according to claim 1, wherein: said MCU comprises a chip U1 having a 1 KByte flash memory, a 64-byte random access memory RAM, a 128-byte electrically erasable read-only memory EEPROM, and four Analog to digital converter AD.

3. The wired remote controller according to claim 1, further comprising: a keyboard unit for the user to press a corresponding function key as needed to obtain a corresponding function, the keyboard unit comprising an independent IN button, The OUT button, and the keyboard circuit, the keyboard circuit further includes: a chip J3, a resistor R11, R21, R31, R41 connected thereto, a variable resistor VR1, wherein the IN and OUT buttons are connected to the chip J3 on.

4. The wired remote controller according to claim 1, wherein: said indicator driving circuit comprises a chip U8 and resistors R8, R14, R9, R15, R10 connected thereto, R12, R13, capacitor C5.

5. The wired remote controller according to claim 1, further comprising: an IN indicator and an OUT indicator, wherein the IN indicator comprises a light emitting diode D10, which turns green when the winch is in a forward rotation state; The lamp includes LEDs D5, D8, which turn red when the winch is in the reverse state; when in the alarm state, both indicators flash red and green alternately.

The wired remote controller according to claim 1, further comprising: a power supply unit for supplying power, wherein the power supply unit comprises: chips U3 and J2, capacitors C8 and C3, wherein the capacitor C8 and the chip U3 respectively J2 is connected, and capacitor C5 is connected to chip U3.

7. A method for controlling a wired remote controller, comprising the steps of:

b. According to the received key value, the corresponding processing;

d. The control indicator will display the corresponding status.

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

If the rocker unit's joystick is operating downwards, the green light message will be written to the indicator buffer along with the speed value and the IN command.

9. The control method according to claim 7, further comprising the steps of: calculating a check value and placing the value in a transmission buffer.

The control method according to claim 9, further comprising the step of: transmitting data of the transmission buffer to the MCU.