JP3863403B2 - Transmitting apparatus and transmitting method - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a transmission device and a transmission method, and more particularly, to a transmission device and a transmission method that perform switch operation acceptance confirmation operation and wireless transmission when a switch is operated.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, there is a transmission device that performs switch operation reception confirmation operation and wireless transmission when a switch is operated, and is used in, for example, a remote control device. An example of this type of transmission device is disclosed in Japanese Patent Application Laid-Open No. 2001-128250. Briefly explaining the disclosed contents of Japanese Patent Application Laid-Open No. 2001-128250, a remote control transmitter using a battery as a power source, and when a switch is pressed, a transmission indicator lamp that displays acceptance of switch operation is turned on. A radio wave is transmitted from the transmission circuit for a predetermined time after a lapse of time for preventing erroneous operation, and the transmission indicator lamp is turned off simultaneously with the end of transmission. When the voltage monitoring unit detects that the battery voltage is equal to or lower than a predetermined voltage value during radio wave transmission, the transmission indicator lamp blinks for a predetermined time after the transmission is completed.
[0003]
[Problems to be solved by the invention]
However, in the above, there is a period in which the lighting of the transmission indicator lamp and the wireless transmission, which are the switch operation acceptance confirmation operations, are simultaneously activated. During this time, a problem arises that a large load is applied to the power source such as a battery and the peak current increases. This increase in peak current causes a problem of shortening the battery life when a battery is used as a power source.
[0004]
It is possible to provide a regulator to stabilize the operation of the transmitter circuit, and to use a constant voltage output from the regulator as the power source of the transmitter circuit. Since the current consumption is increased and the state where the current consumption of the regulator is large overlaps with the wireless transmission operation and the switch operation acceptance confirmation operation, the peak current also increases in this case.
[0005]
An object of the present invention is to suppress the magnitude of a peak current in a transmission device and a transmission method that perform switch operation acceptance confirmation operation and wireless transmission when a switch is operated.
[0006]
[Means for Solving the Problems]
The first invention includes a switch, a switch operation reception confirmation operation unit that operates in accordance with the operation of the switch, and a wireless transmission unit that wirelessly transmits a predetermined signal in accordance with the operation of the switch. The operation period of the operation reception confirmation operation unit does not overlap the wireless transmission period of the wireless transmission unit, and the wireless transmission unit wirelessly transmits a predetermined signal after the operation of the switch operation reception confirmation operation unit is completed. It is comprised so that it may do . According to such a configuration, since the switch operation acceptance confirmation operation and the wireless transmission do not overlap, the magnitude of the peak current can be suppressed. Further, since the switch operation acceptance confirmation operation is performed prior to the wireless transmission, the user who operates the switch can immediately confirm that the switch operation has been accepted. Therefore, even if the switch is operated, the switch operation acceptance confirmation operation is not performed easily, and it is assumed that the switch operation is not accepted. It becomes possible.
[0008]
A second invention is a transmission method including a step of performing an operation for confirming switch operation acceptance in response to an operation of a switch, and a step of wirelessly transmitting a predetermined signal after the operation for confirming switch operation acceptance. According to such a method, since the switch operation acceptance confirmation operation and the wireless transmission do not overlap, the magnitude of the peak current can be suppressed. In addition, since the switch operation acceptance confirmation operation is performed prior to the wireless transmission, the user who operates the switch can immediately confirm that the switch operation has been accepted. Therefore, even if the switch is operated, the switch operation acceptance confirmation operation is not performed easily, and it is assumed that the switch operation is not accepted. It becomes possible.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to an example shown in the drawings. In FIG. 1, the transmission apparatus 1 includes a switch 3 connected to a control circuit 2, a display unit 4 as an operation unit for confirming switch operation reception, a power source 5 such as a battery, a wireless transmission unit 6, and the like. In this example, the display unit 4 is provided as an operation unit for confirming switch operation reception. However, the display unit 4 is not limited to this. For example, a notification unit such as a buzzer or a vibration unit may be used. The number of operation units is not limited to one, and a plurality of operation units may be used. In addition, although LED is used as the display part 4 in this example, this can be changed suitably. The control circuit 2 includes a CPU, a ROM, a RAM, and the like, and controls various operations as described later based on an operation program stored in the ROM. The wireless transmission unit 6 includes a transmitter 61 and an antenna 62, and starts operation with the battery 5 as a power source in response to an input of a power-on signal (shown as “ON” in the figure) from the control circuit 2. Specifically, information stored in a ROM or the like in the control circuit 2, for example, predetermined information corresponding to the switch 3 or predetermined information corresponding to the transmission device 1 is wirelessly transmitted from the antenna 62. These pieces of information are not limited to those stored in the ROM in the control circuit 2, but may be information set by a dip switch connected to the control circuit 2, for example. It can be changed.
[0010]
The receiving device 7 includes an antenna 71, a receiver 72, a control circuit 73, etc., receives information wirelessly transmitted from the transmitting device 1 with the antenna 71, performs waveform shaping with the receiver 72, and the control circuit 73 performs predetermined processing. Process. For example, when the transmission device 1 is used as a remote control device for an electronic device, the control circuit 73 controls the electronic device according to the received signal, and when the transmission device 1 is used as a calling device such as an interphone, Operate chimes etc. to inform people visit.
[0011]
Next, the operation will be described with reference to FIG.
[0012]
When the switch 3 is operated (see FIG. 2a), the LED 4 operates for a predetermined time using the battery 5 as a power source under the control of the control circuit 2 (see FIG. 2b). The operation time of the LED 4 is not limited to a fixed value, and may be changed according to the time during which the switch 3 is operated.
[0013]
When the operation of the LED 4 for a predetermined time is completed, the control circuit 2 outputs a power-on signal to the transmitter 61 to supply the voltage of the battery 5 to the transmitter 61 and to display predetermined information (indicated as “DATA” in FIG. 1). Is sent to the transmitter 61. The transmitter 61 transmits predetermined information as a radio signal from the antenna 62 based on the control by the control circuit 2 (see FIG. 2c).
[0014]
The receiving device 7 receives predetermined information wirelessly transmitted from the transmitting device 1 with the antenna 71, performs waveform shaping or the like with the receiving circuit 72, and performs predetermined processing with the control circuit 73.
[0015]
In addition, in order to increase the probability that the predetermined information transmitted from the transmission device 1 can be received by the reception device 7, the predetermined information may be transmitted a plurality of times as shown in FIG. 2c. However, when a receiving device with good reception sensitivity is used or when the reception environment is good, the number of times of transmission of the predetermined information may be one.
[0016]
In the above description, when the switch is operated, the switch operation acceptance confirmation operation is performed prior to the wireless transmission, but the wireless transmission may be performed prior to the switch operation acceptance confirmation operation. In this case, if a battery is used as the power source for the switch operation reception confirmation operation unit and the wireless transmission unit, wireless transmission can be performed before the battery voltage decreases due to the switch operation reception confirmation operation, thereby stabilizing wireless communication. . Therefore, it is possible to stabilize the wireless communication in the communication unit including the transmission device 1 and the reception device 7.
[0017]
In addition, in the case where a battery is used as the power source for the switch operation reception confirmation operation unit and the wireless transmission unit, in addition to the above effect, the temporary fluctuation of the battery voltage can be suppressed by suppressing the magnitude of the peak current. It is possible to prevent malfunction of the wireless transmission unit due to temporary voltage fluctuation, and to suppress deterioration of information transmitted wirelessly. Therefore, a communication unit including a transmission device and a reception device with a reduced probability of reception failure can be realized.
[0018]
In the above example, the power source of the wireless transmission unit 6 is the voltage of the battery 5, but in order to stabilize the operation of the wireless transmission unit 6, a regulator that outputs a constant voltage using the battery 5 as a power source as shown in FIG. Eight outputs may be used. In this case, a power-on signal output from the control circuit 2 after the LED 4 is turned on is input to the regulator 8 instead of the transmitter 61, and the regulator 8 wirelessly transmits a constant voltage using the battery 5 as a power source by the input of the power-on signal. Output to unit 6. The wireless transmission unit 6 performs the same operation as described above using the constant voltage from the regulator 8 as a power source. In this case, the switch operation acceptance confirmation operation, the wireless transmission, and the regulator operation do not overlap, and the peak current can be suppressed.
[0019]
In the above example, a battery is used as the power source of the transmission device 1. However, a power supply circuit that obtains a DC power source from a commercial power source may be provided, and this DC power source may be used as the power source of the transmission device 1. Also in this case, the peak current can be suppressed.
[0020]
As described above, the switch operation acceptance confirmation operation and the wireless transmission do not overlap, so that the peak current can be suppressed. Therefore, for example, when a battery is used as the power source, the battery life can be extended and the frequency of battery replacement can be reduced. Naturally, even when a commercial power source is used as the power source, the peak current can be suppressed.
[0021]
In addition, when the switch is operated, the switch operation acceptance confirmation operation is performed before the wireless transmission, so that the user who operates the switch can immediately confirm that the switch is operated, and the switch operation is not accepted. This makes it possible to prevent the user from operating the switch more than necessary.
[0022]
【The invention's effect】
According to the present invention, since the switch operation acceptance confirmation operation and the wireless transmission do not overlap, the magnitude of the peak current can be suppressed.
[0023]
In addition, since the switch operation acceptance confirmation operation is performed before wireless transmission, the user who operates the switch can immediately confirm that the switch has been operated, and assumes that the switch operation is not accepted and operates the switch more than necessary. This can be prevented.
[Brief description of the drawings]
FIG. 1 is a block circuit diagram showing an embodiment of the present invention.
FIG. 2 is a timing chart for explaining the operation of FIG. 1;
FIG. 3 is a block diagram showing another embodiment of the present invention.
[Explanation of symbols]
3 Switch 4 Switch operation acceptance confirmation operation unit 6 Wireless transmission unit

Claims (2)

A switch operation reception confirmation operation unit that operates in response to an operation of the switch; and a wireless transmission unit that wirelessly transmits a predetermined signal in accordance with the operation of the switch. That the wireless transmission unit does not overlap the wireless transmission period of the wireless transmission unit, and the wireless transmission unit wirelessly transmits a predetermined signal after the operation of the switch operation acceptance confirmation operation unit is completed. A transmitting device characterized.   A transmission method comprising: performing an operation for confirming switch operation acceptance in response to an operation of a switch; and transmitting a predetermined signal wirelessly after the operation for confirming switch operation acceptance is completed.

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