JPH02119398A - Remote controller - Google Patents

Abstract

PURPOSE:To prevent the increased current consumption and earlier wear of power supply by providing a timer circuit counting a switch input time and a timer setting circuit setting the time from the switch input and setting an output suppress mode if the switch input time elapses the setting time of the timer setting circuit. CONSTITUTION:An output signal of a switch input circuit 15 is inputted to a switch input discrimination circuit 16 and when the presence of a switch input is confirmed in the circuit 16, a timer count circuit 19 is started and a timer setting circuit 20 is started. Then an output of the timer count circuit 19 exceeds the output of the timer setting circuit 20, a timer comparator circuit 21 outputs a control signal to a power-down mode setting circuit 17, which is started. Thus, the system clock generating circuit 14 is stopped and the mode transits to the power-down mode. Moreover, the power-down mode setting circuit 17 is operated by the switch input discrimination circuit 16 even with the input of a switch input release signal to set the power-down mode.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a remote control device for an air conditioner or the like having a built-in power supply.

[Conventional technology]

FIG. 3 is a circuit diagram of a remote control device for a general air conditioner or the like as disclosed in, for example, Japanese Utility Model Application Publication No. 59-136542. In +2, ■ is a control unit consisting of a microcomputer, etc., 2.3 is a high-speed oscillation circuit and a low-speed oscillation circuit connected to the control unit 1, and the high-speed oscillation circuit 2 is several llz to several mlz otsuk (CLOCK). )
, and the low continuous oscillation circuit 3 generates a clock of several t old IZ. 4 is a switch input section with matrix configuration, 5 is L
6 is an infrared light LE for controlling (iS S'i) to the air conditioner body etc.
D, 7 is a current limiting resistor for LED 6, 8 is a driving transistor for LED 6, 9.10 is a current limiting resistor and a bus resistor for transistor 8, 1! teeth? "Power source for ponds, etc., 1
2 is a stabilizing capacitor for the '1°if source 11.

FIG. 4 is a circuit diagram showing a signal input system from the switch input section 4. The switch input section 4 is.

Here, for ease of explanation, we will use four key switches 4a to 4.
d, key scan signal line and key input G, ? Each line consists of two trees. The key scan signal "-3- line is connected to the transistors la and lb in the control unit 1.
In addition, the key line 1 is connected to the voltage i1 terminal (VOO) via a pull-up resistor IC, ld, and a gate circuit for detecting a rising torrent signal with a Schmitt circuit. In the remote control device having the configuration as described in 3 and (2), which is connected to le, If and gates Ig and lh,
When the microcoater is attached, the oscillation circuits 2 and 3 are activated, and the micro combi coater of the control section 1 starts operating. Then, when any key switch of the switch input section 4 is pressed, a process corresponding to that key switch is performed, and the content of the process is displayed on the display section 5. At the same time, a control signal G4 is sent from the LED 7 to the air conditioner main body.

Here, in a remote control device as described in 1- above which uses a power source 11 such as a pond, the capacity of the power source 11 is iI.
Since the current consumption is limited, the current consumption must be kept as low as possible.Generally, a microcomputer driven by a power source 11 such as a battery performs state transitions as shown in Figure 5. Trying to maintain low current consumption, the first
It controls the operations of the high-speed oscillation circuit 2 and low-speed oscillation circuit 3 shown in the figure. That is, after the power is inserted, the state will be as shown in A in Figure 3. At this time, the high-speed oscillation circuit (clock This is the clock Xfn of circuit 2. When processing such as initialization of the microcomputer is completed, the system clock φ is changed (to "1") and switched to the clock Xcin of the low-speed oscillation circuit 3, and the state shifts to state B. Thereafter, a power down (output suppression) command is executed to stop the system clock φ of the microcombicoater, and the operation of the microcomputer is stopped except for the minimum necessary special functions. There are state 1 and state C, and by controlling the state to L, it is possible to achieve even lower current consumption.

At that time, unless there is an input change using a switch, etc., the state will remain in state C, but if there is a switch input while in state C, the microcomputer will wake up part 4 (1'+ "J"). There is a transition from state C to state B.

After that, change the system clock φ (“0”) if necessary.
) and also transitions to state A, and when the switch is input or released, it transitions from the state of IF degree B to state C. In this way, the microcomputer of the remote control device uses as much C as possible.
This state enables the above-mentioned low current consumption.

Next, the first external wake-up signal will be explained. While in the state of C in FIG. 5, the key scan 4 described above
? , the call line is the transistor la in the microcomputer.
, lb is ON, so it is on the GND side, and the key person Kai, line 3 is 8 (by anti-lc, Id, V
It is fixed at the level on the llll side. This key input signal line is gate 1g.

Accumulation in the microcomputer from 1hIj
Evening 1 & continued, signal A from here. , A is input. In addition, a gate for detecting a falling signal [111 fe, i
External sea urchin, Ikua Tsubui, No. 1 is generated by f. Normally, when the key switches 4a to 4d are not pressed,
Since the output signals of the gate circuits 1e and 1f are not generated, the state is in the state shown in C in FIG. In this state, for example, when the key switch 4a is pressed, the GND level changes from the level 1-1ft, if or vI, I through the transistor la and the key switch 4a. Then, the above-mentioned external wake-up signal is generated in response to the rising F signal, and at this time, the microcomputer shifts to state B and processes l1.
The state becomes Tr11.

FIG. 6 is a block diagram showing the configuration of each circuit of the remote control device described above. In the figure, reference numeral 13 denotes an excavation circuit, which is composed of the high-speed oscillation circuit 2 and the low-speed oscillation circuit 3 shown in FIG. 14 is a system clock generation circuit that generates a system clock from the oscillation frX, and 15 is a switch input circuit, which has the configuration shown in FIG. 16 is a switch input determination circuit for determining the switch input; 17;
18 is a power down mode setting circuit that sets the power down (output suppression) mode of the power supply 11, and 18 is a power down mode canceling circuit that cancels the power down mode.

In the normal state (state with no switch input), the system clock generation circuit 14 is stopped by the power down mode setting circuit 17 as described above, and the system is in a low power consumption mode, that is, a power down mode. Here, when any of the switches 4a to 4d is pressed, the switch input circuit 15
A signal is input to the power-down mode release circuit 18, the system clock generation circuit 14 is activated, and the microcomputer operates according to the system clock. Thereafter, when the switch input determination circuit 16 confirms that the switch input has been released, the power down mode setting circuit 17
4 is stopped and enters a low current consumption state.

FIG. 7 is a flowchart showing the processing process of the above-mentioned microcomputer, and shows the external wake-up signal (
The operation after the input of the W signal) is shown.

First, in step S, key data is confirmed and chattering of the switch is removed. Then, in step S3, it is determined whether the key data is valid or invalid, and if it is invalid, the process jumps to steps S and J. If it is valid, step S4
Then, display data is changed and signal data to be sent to the air conditioner body is set. Up to this point, the state is B in FIG. Next, proceed to step S5, and (
Change the system clock to operate the microcomputer at high speed so that the carrier wave required for No. 1i transmission is 1 Perform the signal transmission process and proceed to step S.
Step 7 changes the system clock to make the microcomputer operate at a lower speed. The following 1 is the process required after key (switch) input.

After that, proceed to steps S and J, and check whether the key input is canceled, that is, whether the switch is turned off (OFF>).If the switch is turned off, proceed to step S, and enter power down mode. , the power down command is executed.This state is the state shown in C of FIG.

(Problems to be Solved by the Invention) Conventional remote control devices are configured as described above, and operate with high current consumption until the switch input is released, resulting in frequent switch operations or abnormalities in the switch section. If the switch contacts cannot be separated due to
The problem was that the power supply was consumed quickly and it was difficult to use.

This invention was made in order to solve the problems mentioned in (-), and it prevents the power supply from being consumed due to abnormality of the switch, and makes it possible to provide a remote control device that is easy to use. 1" target.

(First Step for Solving the Problems) A remote control device according to the present invention includes a switch input circuit that performs switch input for power supply and remote control, and after canceling the switch input, [Setting of power supply output suppression 111 mode] is provided. In a remote control device that performs This configuration is configured to set a suppression mode.

[Effect]

In the remote controller of the present invention, when the switch input time or the set time of the timer setting circuit elapses, the output suppression mode of the power supply is set, and the current consumption is reduced.

(Embodiment) Fig. 1 is a block diagram showing the configuration of a remote control device according to an embodiment of the present invention.Among the 6 figures showing the configuration of each circuit, 13 to 18 are the conventional Fig. 6. Identical components are shown, and redundant detailed explanations are omitted. 13 is an oscillation circuit, 14 is a system clock generation circuit, 15 is a switch input circuit, 16 is a switch input determination circuit, 17 is a power-down mode setting circuit, and 18 is a power-down mode release circuit. is the same as

19 is a timer count circuit that counts the switch input time, 20 is a timer setting circuit that sets the time from the switch input by -4'', and 21 is the count time of the evening/f counter circuit 19 and the setting time of the timer setting circuit 20. In the timer comparator circuit to be compared, when the switch input time passes the set time, the power down mode is set.The other configurations are the same as those in FIGS. 3 and 4.

Next, the operation 1) will be explained. Same as before, normal condition,
In the case of deafness (switch input 1: ! state j9), the power down mode setting circuit I7 stops the system clock generation circuit 14 and enters the low consumption camo-1, that is, the power town mode. When the switch is pressed in this state, the input circuit 15 inputs the input to No. 1.1 or the power-down mode release circuit 18, and the system clock circuit 14 starts up the system clock and the microcomputer is activated by the system clock. It operates. (When -, the output 1 of the switch input circuit 15 is
+B is input to the constant circuit 16, and when it is confirmed that there is a switch input, the timer and setting circuit 20 are activated.At this time, the timer and setting circuit 20 are activated. Even if the timer count circuit 19 is not released, the timer counting operation continues, and the output of the timer count circuit 19 and the output of the timer setting circuit 20 are compared in the timer comparison circuit 21. When the output value of timer comparison circuit 2 is exceeded,
1 is control A, - is power down mode/setting circuit 1
7 to activate the power down mode setting circuit 17.

As a result, the system clock generation circuit 14 stops 1-
and goes into power down mode. Further, the power down mode setting circuit 17 operates even when the switch input determination circuit 16 inputs the switch input release ``;'', and sets the power down mode -1.

In this way, by adding a new timer circuit, it is possible to prevent the current consumption from increasing due to a malfunction of the switch itself, and it is possible to prevent the built-in power supply from being exhausted. Therefore, the usability L- becomes the one with the direction 1, and moreover, the timer count circuit 19. The timer setting circuit 20 and timer comparison circuit 21 are
: It is possible to carry out composition dyeing at low cost. Note that the setting value of the timer circuit may be set to the 111th position, taking into account the timing of switch operation, etc.

FIG. 2 is a flowchart showing the processing operation by the microcomputer described in I. Similar to the conventional FIG. ing.

First, check whether the switch is kept or not using the step d/b Sl, and at the same time remove chattering from the switch. next.

In step S2, the newly added timer circuit described in +'+if is set. In other words, when the timer call circuit 19 is activated, the timer setting circuit 20 is activated.

At this time, the setting time of the setting circuit 20 is determined by a tie considering the switch input interval, or the setting time is set to about 1 minute. 1) Next, move to step SJ, and input the key data written in ■- or 44.
-71 determines whether it is valid or invalid, and the invalid key is now Stesive S
8 Hessyamp 1-ru. If the 41" effect key is pressed, the process moves to step S4, where display data is required or sent to the air conditioner body (lj data is set. Next, step S5 is performed. Then, in order to operate the micro combicoater at high speed so that the electrocardiographic carrier wave is first transmitted from C1, the system clock is applied to the crocin circuit by the high-frequency activation circuit.Next, in step S6, the transmission signal is After that, in step S, the system clock is changed to a clock by the +'lG and low continuous oscillation circuit.Next, in step S
11, the setting i1 of the timer setting circuit 20 set in step S2 is compared with the timer count i of the timer circuit 19 to determine whether or not the timer has overflowed. Then, the count ((j h') is exceeded if it exceeds the set value.
When the count value is within the set value, the process moves to step S9, where it is checked whether there is any key input, that is, whether the key switch is turned on. At this time, it is turned on and returns to the 111 degree step Sl, so to speak, and if the gear switch is off, it moves to step Sil+, where the timer circuit is reset and the timer count circuit 19 counts. Reset the value. Then step S
, and executes a power-down command to enter power-down mode. Here, in normal operation, when determining the timer circuit in step S8, step S1
It seems that the case of moving to the key input determination operation in step S9 is more likely than the case of moving to .degree. In other words, the timer circuit is set up like this,
It prevents power consumption from being consumed due to switch failure without interfering with normal operation.

〔Effect of the invention〕

As described above, according to the present invention, the power supply output is suppressed even when the switch input time exceeds the set time, thereby preventing an increase in current consumption due to switch abnormality. This has the effect of preventing premature consumption of the power supply and improving usability.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the configuration of each circuit of a remote control device according to an embodiment of the present invention, FIG. 4 is a circuit diagram showing the signal input system from the switch input section of FIG. 3, and FIG. 5 is a state transition diagram of the microcomputer of the control section of FIG. 3. FIG. 6 is a block diagram showing the configuration of each circuit of a conventional remote control device, and FIG. 7 is a flowchart showing the operation of the circuit shown in FIG. 1... Control section 2... High speed oscillation circuit 3... Low speed oscillation circuit 4... Switch input section 5... Display section 11. ...Power supply +3...Oscillation circuit 14...System clock generation circuit 15...
... Switch input circuit 16 ... Switch input judgment circuit 17 ...
・Power down mode setting circuit 18...Power down mode release circuit 19...Timer count circuit 20...Timer setting circuit 21...Timer comparison circuit The same symbols in the figures refer to the same numbers. Or the corresponding part in Figure 1

Claims (1)

[Claims] In a remote control device that is equipped with a switch input circuit that performs switch input for power supply and remote control, and that sets the output suppression mode of the power supply after the switch input is released, a timer circuit that counts the switch input time and a timer circuit that counts the switch input time and A remote control device comprising a timer setting circuit for setting a time and setting the output suppression mode even when a switch input time exceeds the set time of the timer setting circuit.