KR100351617B1 - Circuit for generating identification information in wireless controller - Google Patents

Abstract

PURPOSE: A circuit for generating identification information in a wireless controller is provided to be used in a mobile controller using a battery by minimizing power consumption and easily changing identification information. CONSTITUTION: If a port 1(8) of a microcomputer(4) is maintained as a high level, a current flows in a base of a transistor(14) and the transistor(14) is turned on. A power is supplied to 3-state buffers(12,12') and the operation of the 3-state buffers(12,12') is enabled. If identification information of a DIP(Dual Inline Package) switch 1(13) is selected by using enable ports(EN1,EN2)(9,10) of the 3-state buffers(12,12') in an expanding mode, the EN1(9) of the 3-state buffer(12) is enabled, identification information is read through a bus line(11), and read identification information is stored in a register of the microcomputer(4). If identification information of the DIP switch 2(13') is read, the EN2(10) of the 3-state buffer(12') is enabled, identification information is read through the bus line(11), and read identification information is stored in the register of the microcomputer(4).

Description

Identification Information Generation Circuit in Radio Controller

According to the present invention, a device-specific identification code for preventing a malfunction that may occur due to interference or interference with other devices when using a single channel in a wireless control circuit having a communication function is identified. It relates to a circuit that provides).

A conventional method of using identification information in a device is, for example, a radio control system as shown in FIG. 1, including (fixed wireless) main body 1, (mobile wireless) controller 1 (2), controller 2 (2 '), And an identification code unique to each device capable of distinguishing a control signal from the controller 3 (2 ").

As shown in FIG. 2, the configuration of the controllers 2, 2'2, " is a microcomputer 4 having a serial communication port, an internal arithmetic unit and a memory device, and an identification information memory having a code value for identification of each device ( 5) Input / output device (6) for processing and outputting signals inputted through serial communication and inputting / outputting signals from switches or senses, external display device (7) displaying current control status, and smoothly transmitting control signals It consists of a communication interface device (3).

In the conventional method of detecting the identification information in the controller 2, 2 ', 2 "configured as described above, as shown in the microcomputer flow chart of FIG. 3, in the case of transmission, the microcomputer 4 receives a signal input from the input / output device 6; After discrimination, the data is converted into transmission data, and its own identification information value is read from the memory 5, and the value is transmitted to the target controller (21 → 25 → 26).

In case of reception, the microcomputer 4 transmits the output to the input / output device only when the data is matched by comparing the identification information part of the data input through the microcomputer serial port with the ID value (identification value) read from the memory (5). (21 → 22 → 23 → 24). The conventional method of recognizing the identification information requires reading the identification information from the memory 5 every time the identification information is checked at the time of transmission and reception of the control signal (22, 26). If it is necessary to change the memory (5) re-programming is inconvenient, it was impossible for the user to change arbitrarily.

The present invention has been made to solve the problems of the conventional circuit as described above, by minimizing the power consumption that is a problem that occurs when generating the identification information and allows the user to easily change the identification information, especially in the case of a mobile controller using a battery It is an object of the present invention to provide an identification information generating circuit that can be usefully used.

DETAILED DESCRIPTION OF THE INVENTION The present invention for achieving such an object will be described in detail below with reference to the accompanying drawings.

4 shows an identification information generating circuit diagram according to the present invention. As shown in the drawing, the present invention provides a dip switch 13, 13 ', three state buffers 12, 12', and a power switching transistor 14 circuit. It is configured to reduce the power consumption as much as possible by controlling the operation of the identification information generating circuit only when the identification information is required by the microcomputer (4).

The operation of the circuit allocates a register dedicated for identification information before performing a communication function in the microcomputer and stores a value generated in the identification information generating circuit in an internal register. If port 1 ((8) is kept at a high level in order to read the identification information into the microcomputer, current flows to the base of the transistor 14, causing the transistor 14 to be turned on and to the buffers 12 and 12 '. Power is applied to activate the buffer's operation.

FIG. 5 is a flow chart of the microcomputer control according to the present invention. When using the extended mode as shown in the figure, when the identification information of the deep switch 1 13 is selected using the enable terminal of the buffer, FIG. Enable EN 1 terminal 9, read identification information via bus line 11 and store it in a register. When reading identification information of dipswitch 2 (13 '), By enabling the EN 2 terminal 10, the identification information is read through the bus line 11 and stored in the register of the microcomputer. (31 → 32 → 33 → 34)

In case of receiving function, first determine whether ID information is stored in register, and then if ID information is received, compare control value with the received value and register value and output control signal to MICOM's I / O device only. Done. (35 → 36 → 37)

When the transmit function is required, the value of the register is transmitted as identification information. (38 → 39)

If the communication function is not required, no transmission is made without receiving identification information. (31 → 35 → 38) At this time, since port 1 (8) of FIG. 4 is in the low level, the power supply to the buffers 12 and 12 'is cut off so that the battery does not consume power in the identification information generating circuit of FIG. Perform a power saving function.

In addition, by using the register of the microcomputer, the identification information value is stored when the initialization program is executed, thereby eliminating the disadvantage of the conventional method of reading the identification information every time, thereby enabling a quick communication.

1 is a schematic configuration diagram of a general radio control system

2 is a general block diagram of a radio controller.

3 is a flowchart for explaining a conventional method of processing identification information.

4 is a circuit diagram according to a preferred embodiment of the present invention.

5 is a microcomputer control flowchart illustrating an embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

1: Main Body 2,2, ', 2 ": Controller

3: communication interface device 4: microcomputer

5: identification information memory 6: input / output device

7: external display device 8: port 1

9,10: Enable terminal (EN1, EN2) 11: Bus line

12,12 ': 3 state buffer

13,13 ': Dip switch 14: Transistor

Claims (4)

An identification information generating circuit in a wireless controller, comprising a dip switch (13, 13 '), three state buffers (12, 12'), and a power switching transistor (14) circuit. The method of claim 1, Keeping port 1 (8) at a high level causes current to flow through the base of transistor 14 to turn on transistor 14 and supply power to tristate buffers 12 and 12 'to activate the buffer's operation. Identification information generating circuit in a wireless controller, characterized in that. 2. The EN1 terminal 9 as claimed in claim 1, wherein the identification information of the dip switch 1 (13) is selected by using the enable terminal of the buffer when the extended mode is used. Read the identification information through the bus line 11 and store it in the register. When reading the identification information of the dip switch 2 (13 '), the EN 2 terminal 10, which is the enable terminal of the buffer 2 (12'), Identification information generation circuit in the wireless controller, characterized in that by enabling the read the identification information via the bus line (11) in the register of the microcomputer. The method of claim 1, If the communication function is not required, the port 1 (8) is in a low level state, the power supply to the buffer is cut off, the power supply from the identification information generating circuit is cut off, and no power consumption occurs in the identification information generating circuit. An identification information generating circuit in a wireless controller, characterized in that configured to use the identification information stored in the register of the microcomputer (4) by the microcomputer (4) itself during communication.