JPS6194101A - Infrared ray reception controller - Google Patents

Abstract

PURPOSE:To improve the operability and the general-purpose properties of an infrared ray reception controller by using switch selecting types of devices and a mode selection switch. CONSTITUTION:An output plug socket 22 is provided from a plug 1 connected to a commercial power supply via a fuse 2 for protection and a relay contact 19 of a switch means 14. A load connected to the socket 22 is energized when the contact 19 is closed. The socket 22 is provided with a DC power supply circuit 3, a control part 4, a reception part 11 which receives the infrared ray signal Si given from outside and a changeover switch (mode selection means) 13. The part 4 includes a device discriminator means 5, an input deciding part 6, a signal output part 7, an initialization means 8, a timer 9 and a forcible OFF means 10. The part 4 turns OFF the output action of the part 7 regardless of the signal of the part 6. Thus the load can be turned on (off) optionally and continuously regardless of the infrared ray signal given from outside. Then it is possible to select freely >=2 types of subject devices just with a single device.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an infrared reception control device that remotely receives an infrared signal and turns on and off the operation of a load depending on the content of the control signal.

2. Description of the Related Art Conventionally, this type of reception control device is equipped with a device selection switch for selecting the type of load (for example, an air purifier, humidifier, dehumidifier, etc.), and selects an infrared signal from an external transmitter. The device selection switch was configured to control the load on and off using the corresponding control signal.

Problems to be Solved by the Invention In this conventional configuration, it is possible to perform control operations according to the type of load without changing the side-slip of the device, but this operation is performed using infrared signals from an external transmitter. Because there is no means to turn on (or turn off) the operation of the load continuously, it is possible to turn on (!take off) the operation state of the load continuously according to the user's preference or in an emergency. The problem was that it was not possible.

Means for Solving the Problems In order to solve the problems of the prior art, the infrared receiving device of the present invention includes a device selection switch for selecting the type of device and a device selection switch that continuously turns on (or turns off) the operating state of the device. Have the means. A mode selection switch is provided, and when selecting a device, a predetermined value corresponding to the device is changed among the infrared signals from an external transmitter, and when the infrared signal with the predetermined value is received. The purpose is to generate an on/off output depending on the content.

Effect By providing the mode selection switch mentioned above, it becomes possible to manually turn the load (equipment) on or off continuously depending on the usage situation, regardless of the control signal from the external transmitter, which improves usability. In addition, depending on the type of load (equipment), the control signal from an external transmitter can be applied to control signals from an external transmitter, making it possible to control various loads (equipment) with the same device. It has greater versatility as it can be used for.

Embodiment An infrared reception control device based on the present invention will be explained in detail with reference to an embodiment shown in the accompanying drawings.

FIG. 1 is a circuit diagram of an infrared reception control device according to the present invention. In the figure, 1 is a plug for connecting to a commercial power supply, 2 is a protective fuse, and 3 is a DC power supply circuit, which generates DC power supply voltages Vcc and VNR. 4 is the control unit (
Here, it is a microcomputer), and 5il-1:
A device identification means for identifying the type of device, inputs the 6tI''i pulse signal Sp, which is in a predetermined format as a pulse train,
and an input determination section that determines whether or not the value is a predetermined value corresponding to the device identification means; 7 is a signal output section that outputs a control output signal Sc to the outside of the control section 4 based on a signal from the input determination section;
The initializing means 8 outputs an output to the timer 9 when it is determined that the input determining section 6 has received a normal pulse signal Sp. Then, the count time of timer 9 is reset to the initial value. 10 is a forced off means, which detects that the timer 9 has counted up to a predetermined time, and then turns off the signal output section 7.
The output operation is controlled such that the control output signal Sc is turned off regardless of the input determination unit 6.

11 is a receiving unit that receives an infrared signal Si from the outside;
Reference numeral 2 denotes light receiving elements (two pieces), and this receiving section 11 selects and demodulates a signal modulated at a predetermined carrier frequency from among the infrared signals, and outputs it to the control section 4 as a pulse signal Sp.

13 is a changeover switch (mode selection means), and a contact (
a), (bl, (Cl), and when the contact (al) is selected, a high-level device selection signal Sn is sent to the control unit 40 and the device identification means 5. In the case of the contact (b), the (contact (cJ
The same is true in the case of ), but the device selection signal Sn is at a low level. By this signal Sn becoming high/low,
For example, the devices to be controlled are a ventilation fan, a humidifier, etc. Reference numeral 14 denotes a switch means, which includes a resistor 15, 16, a transistor 17, a relay 18, a contact 19 of the relay 18, a resistor 20, and a display element 21. The input signals are the control output signal Sc and the signal sH which becomes high level when the changeover switch 13 is selected as the contact (-). This signal sH
is a continuous ON signal, and when p and i are at a high level, the relay 18 is turned on and its contact 19 is closed regardless of whether control chi≦Sc. If the continuous ON signal sH is not at a high level, the relay 18 is turned on and off in accordance with the control output signal 5ciC. The display element 21 turns on and off in synchronization with the on/off operation of the relay 18.

22 is an output outlet, and when the contact 19 of the relay 18 is closed, power is supplied to the load connected thereto.

Next, the pulse signal Sp is received by the receiver 11, and the pulse signal Sp
The input determination unit 6 of the control unit 4 determines whether or not the value is a normal value as a pulse train, and this pulse train is given in the format shown in FIG. 2, for example. In the figure, H indicates the start of transmission, and D indicates the 8-bit device control take (
Do to D7), C is a 5-bit control command, D is an inversion symbol of each bit of D, and C is an inversion symbol of each bit of C.

D and C are provided for error detection. Each bit DO to D7 of D is provided corresponding to eight types of equipment, and in FIG. 1, among these, DO (humidifier) and D
I (ventilation fan) is used, and D2 to D7 are unused.

Each bit of the device control take D takes two values: no, y, and low, and is defined as instructing the target device to turn on when it is high and to turn it off when it is low.

Further, the control command C is assigned a specific 5-bit code, and is distinguished from other remote control codes.

Therefore, in the case where the changeover switch 1a is a contact point (,),
S n = 1, and the target device is Do (ventilation fan)
is selected. At this time, the input determination unit 6 determines that the input pulse train is a predetermined value when it has the format shown in FIG. , Dl and sends it to the output section 7.

In addition, the changeover switch 13 is in the contact (b) state (contact (C)
Similarly, when DO is .

In the above case, if the pulse train does not follow the format shown in Figure 2, if there is an error in error detection using D and C, or if C is not a specific value, the infrared rays It is assumed that no signal has been received, and the control output signal Sc is not changed.

Next, the initializing means 8 initializes the timer 9 when the external transmitting device emits an infrared signal every two minutes or less, for example, and when the input determining section 6 determines that the pulse train is a predetermined value. do. However, if this initialization is not performed for a predetermined period of time (for example, 6 minutes, ie, the number of receptions during normal operation is three or more times), the forced off means 10 turns off the control output signal Sc. That is,
In addition to stopping the operation of the external i'Sls transmitting device, if the load cannot be properly remotely controlled due to malfunction of the external transmitting device or the receiving section 11 due to external noise, the load will remain on until then. However, it can be suddenly turned off after a predetermined period of time.

Next, FIG. 3 shows an external view of the embodiment shown in FIG. 1. In the figure, 23 is a housing, 24 is a receiver 110, and an optical filter provided in front of the two light receiving elements (in the figure, they are provided facing the front and bottom surfaces, respectively).
Reference numeral 25 denotes a pair of blades of the plug 1, which are parts that are pushed into an outlet provided on a wall, and the device can be housed simply by pushing into the outlet. Further, the pair of plug blades 25 are structured to be rotatable at least 90° relative to the main body of the plug 1. 26 is a rotation stopper;
3, and when this rotation stopper 26 is removed from the housing 23, the pair of plug blades 101 can rotate 900 times upward in the figure. In this situation, insert the 10th outlet of the extension power cord into this pair of plug blades 25, and connect the power/horn/clutching 23 to the wall using a collection money (not shown) or the like. It can be installed in any suitable position, so it is effective when there is not enough space to fit an outlet on the wall or when infrared signals cannot be received properly. Note that 27 is a protrusion for stably holding the device when it is inserted into a wall outlet.

Next, FIGS. 4 and 5 show an embodiment of the selector switch (mode selection means) 13 in FIG. 1.

In Figure 4, 29+-14 contacts ((a), (b8(
changeover switch with cl, , (dl), 30.3
Ndi resistor 32 is a transistor. When either the connection or a (dl) is selected, the continuous off signal SL causes the switch means 14 to be connected to the control output signal Sc.
This is to turn off. The rest is the same as in FIG.

In FIG. 5, 33 (l'i3 contact changeover switch,
and 34 is the 3-bit code output (SnolSnl
, Sn2).

When the contact point (eJ) of the changeover switch 33 is selected, eight types of equipment can be selected using the equipment selection switch 34, and the code outputs Sno, Sn1, and Sn2 are input to the equipment identification means of the control unit 4. The eight types of devices in this case correspond to DO to D7 in FIG.

The infrared receiving device based on the present invention has been described above with reference to the embodiments. In the embodiment, the load is continuously turned on by the mode selection means, and the infrared receiving device based on the present invention is directly connected to the switch means 14.
Although a signal from the changeover switch 13 and the like is provided, it is also possible to input a signal instructing continuous on or continuous off to the control section 4 and turn on/off the switch means 14 only by the control output signal Sc. In this case, it is necessary to give priority to the forced off means 10 which operates based on the timer 9.

In addition, as shown in Figure 3, the load and this device are configured independently, but in the case of a composite device (for example, a device that combines a humidifier and a dehumidifier), it may be necessary to incorporate it into the device. Also, the switch means is not fixed to the opening/closing operation of the commercial power supply, but can be configured according to the intended use.

Effects of the Invention The infrared reception control device of the present invention turns on the receiving section, the control section, the switching means, and the switching means at least continuously, or changes the value of the received signal corresponding to the load (device) to be controlled by at least 2. This device consists of a mode selection means that allows the load to be switched on (or off) continuously regardless of the infrared signal from an external transmitter, and also allows two types of devices to be controlled. Since the above options can be selected, safety and operability are excellent in that the operating state of the equipment can be arbitrarily selected in an emergency or at the convenience of the individual user, and two or more target models can be freely selected and applied to the same equipment. It has great effects such as being versatile in that it can be used.

[Brief explanation of drawings]

Fig. 1 is a circuit configuration diagram of an infrared reception control device in an embodiment of the present invention, Fig. 2 is an explanatory diagram of the format of an infrared signal in Fig. 1, Fig. 3 is an external view in Fig. 1, Fig. 4 and FIG. 5 is a circuit diagram of another embodiment of the mode selection means. 1...Plug, 3...DC power supply circuit,
4...Control unit (microcomputer), 5.
... device identification means, 6 ... input determination section,
7. Signal output section, 8.. Initialization means, 9.. Timer, 1o.. Forced off means, 11.. River, receiving section, 12. Song, light reception. Motoko, 13...
... Changeover switch (mode selection means), 14...
...Switch means, 18...Relay, 21.
... Display element, 22 ... Output outlet, Sc ... Control output signal. Name of agent: Patent attorney Toshio Nakao and 1 other person
2 Figure 8bit Figure 3 Figure 4 Figure 5

Claims (3)

[Claims] (1) A receiver that detects an infrared signal and selects and demodulates a signal modulated at a predetermined carrier frequency, and a pulse signal from the receiver is input, and when the pulse train has a predetermined value, the content is a control unit that outputs an on or off control output signal according to the on/off state of the control output signal; a switch means that turns on/off energization to the load depending on the on/off state of the control output signal;
Regardless of the pulse signal from the receiving section, the switch means is always turned on, or the predetermined value for determining the pulse train is set to at least 2 in the control section.
An infrared reception control device comprising: a mode selection means for changing the mode from one mode to another. (2) The infrared reception control device according to claim 1, wherein the mode selection means is constituted by a changeover switch having two or more switching contacts for device selection and a contact for directly turning on the switch means. (3) The control unit includes a timer that counts time, means for initializing the timer when determining that the pulse train from the reception unit is a predetermined value, and when the timer reaches the predetermined time, 2. The infrared reception control device according to claim 1, further comprising forced off means for turning off the control output signal regardless of its previous state.