JP3237343B2 - Wireless transceiver - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wireless transmitting / receiving apparatus for transmitting / receiving a bath water heater or the like.

[0002]

2. Description of the Related Art In recent years, wireless transmission / reception devices for transmitting / receiving data to / from a bath water heater or the like have been aimed at improving operability for users while reducing power consumption.

[0005] FIG. 5 is a diagram illustrating the configuration of a conventional wireless transmitting / receiving apparatus. In this figure, reference numeral 1 denotes a bath water heater, which is instructed to operate by a remote controller 2 as a transmission / reception device. The bath water heater 1 and the remote controller 2 are provided with a main body transmission / reception unit 3 and a remote control transmission / reception unit 4 for transmitting and receiving wireless signals to and from each other. As shown in FIG. 6, the remote controller 2 has an input operation switch 5 for instructing the bath water heater 1 to operate, a detection unit 6, a power control unit 7, a remote control transmission / reception unit 4, an information determination unit 9, a timer unit 10, and an operation. An instruction signal display means 11 is provided. The power control means 7
When the power is not supplied to the switch 5 and the switch 5 is operated, the detecting means 6 notifies the power control means 7 that the operation of the switch 5 has been performed, and transmits the contents of the operated switch 5 to the remote control transmitting / receiving means 4. Tell When the power control means 7 receives the signal from the detection means 6, it supplies power to the remote control transmission / reception means 4. The remote control transmitting / receiving means 4 transmits the information received from the detecting means 6 to the bath water heater 1 as a wireless signal. When the operation of the switch 5 is not performed and the timer means 10 finishes measuring a predetermined time, a signal is applied to the power control means 7, and the power control means 7 supplies power to the remote control transmitting / receiving means 4 and the display means 11. It stopped and stopped the transmission and reception with the bath water heater 1, and also stopped the display. With the above configuration and operation, the conventional wireless transmission / reception device controls the power supply to the remote control transmission / reception means 4 by the operation of the switch 5 and the time measurement by the timer means 10 and the predetermined time of the power supply control means 7 by the battery power supply. The power consumption was reduced by stopping the external power supply.

[0004]

However, in the above configuration, if the user is ignorant or inadvertently forgets about this power-off mechanism, and the switch 5 has already been turned off.
Despite the operation input, the display of the operation instruction signal or the like on the display means 11 is stopped, so that it is erroneously determined that the operation input has not been performed, or it is erroneously determined that the device has failed or the battery power has been consumed. And it is necessary to operate the switch 5 to display the display on the display means 11, which is troublesome.

The present invention can prevent erroneous determination of the appliance operation state while reducing the power consumption of the power supply control means, and
It is an object of the present invention to provide an easy-to-use wireless transmission / reception device.

[0006]

In order to achieve the above object, a wireless transmitting / receiving apparatus according to the present invention comprises a bathtub, a water level sensor connected to the bathtub for detecting a water level in the bathtub, and a water level sensor for reading an output of the water level sensor. A bath apparatus provided with an output reading means, a water level sensor output comparison / judging means for comparing and judging a water level sensor output, and a water level sensor output rise judging means; Detecting means for detecting an operation signal of the switch, transmitting / receiving means for transmitting / receiving a wireless signal to / from the bath apparatus, power supply controlling means for supplying power, operating information and operation of the switch from the bath apparatus by a signal from the transmitting / receiving means Display means for displaying information, and operation information from the bath apparatus and switch information by a signal from the transmission / reception means. Timer means for outputting a power supply stop signal to the power control means when a predetermined time is measured according to the determination of the information, and receiving the stop signal of the timer means Power stop display means for displaying that power supply from the power control means to the transmission / reception means is stopped, and operation information display means for displaying a switch operation instruction signal and operation information from the bath apparatus within the predetermined time. It is provided.

[0007]

According to the present invention, the detecting means detects the operation of the switch and transmits it to the power control means. The power control unit starts supplying power to the transmission / reception unit based on a signal from the detection unit. The timer means determines whether predetermined information is transmitted from the transmission / reception means, and stops or initializes the time measurement. After the initialization and the start of the measurement, when a predetermined time according to the content of the information determination is measured, the fact is notified to the power supply control means. The power supply control means stops supplying power to the transmission / reception means in response to a signal from the timer means. The power stop display means notifies the user that the display stop is not a failure or a stop due to power consumption by displaying that the power supply to the transmission / reception means is stopped after the display of the operation information display means is stopped. .

Further, focusing on the fact that the bathtub water level suddenly rises when a person enters the bath after the bathtub is completely filled with hot water, the water level rise value rises above a predetermined water level within a predetermined time. In this case, it is determined that a person has taken a bath. When the water level sensor output rise determination is made, the power supply control means restarts power supply to the transmission / reception means, and displays operation information and switch operation information on the display means.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows an embodiment in which the present invention is applied to a gas bath water heater. Reference numeral 12 denotes a bathtub, and 13 denotes a bath water heater, which is instructed to operate by a remote controller 14 as a transmission / reception device. The bath water heater 13 and the remote controller 14 are provided with a main body transmission / reception unit 15 and a remote control transmission / reception unit 16 for transmitting and receiving mutual wireless signals. The bath water heater 13 includes a water level sensor 18 for detecting the water level in the bathtub at the return pipe 17, a water level sensor output reading means 19 for reading the output of the water level sensor, and a water level sensor output comparison / judging means 20 for comparing the water level sensor output. And a water level sensor output rise determination unit 21. The remote controller 14 includes a switch 22 for instructing the bath apparatus to operate, operation information display means 23 for displaying operation information such as an operation instruction signal from the switch 22, a hot water temperature detection signal from the bath water heater 13 and a bathtub water level signal. Power supply stop display means 24 for indicating that power is being saved is provided on the front.

FIG. 2 is a control block diagram of the remote controller 14. The operation instruction signal input by the switch 22 is detected by the detection means 25. The power control unit 26 receives the detection signal from the detection unit 25 and supplies power to the remote control transmission / reception unit 16 and the like. Timer means 27 Information judging means 28 for judging a signal transmitted and received by remote control transmitting / receiving section 16 to bath water heater 13, Timer 29 for measuring a predetermined time according to the judgment signal from the time of receiving the judgment signal from information judging means 28 Become. When the timer 29 has counted up a predetermined time, the power supply control means 26 transmits it as a clock signal.
The power control unit 26 displays the operation instruction signal of the switch 22 on the operation information display unit 23 from the time of input operation. further,
At the time of receiving the timing signal, the display signal is switched from the operation information display unit 23 to the power stop display unit 24. Although not shown, an electronic controller such as the detecting means 25 is built in the remote controller 14. The power control means 26 is a remote control 14
In order to simplify the transmission wiring work with the bath water heater 13 by wireless communication, a battery (not shown) is employed instead of the power supply by the AC power supply.

FIG. 3 is an explanatory view when a person takes a bath. Assuming that the water level after boiling is h0, the water level h after a person takes a bath
Indicated by 1. For example, when a person with a weight of about 65 kg takes a bath in a bathtub 60 cm long, 70 cm wide and 60 cm deep at a set water level h0, the water level rises rapidly and rises to about 18 cm. That is, h1-h0 = about 18 cm
It is shown that it becomes. This is shown by the output of the water level sensor, which is the output change characteristic diagram of the water level sensor in FIG. That is, when a person takes a bath, the water level sensor output changes from V0 to V
It shows that it rises to 1. Here, the case where a person takes a bath will be described in more detail. For example, assume that the microcomputer reads the output of the water level sensor every 1.6 seconds.
It is assumed that 1 bit = 2.5 mmH20 water level sensor output. Here, when a person takes a bath, 18 cm is equivalent to 72 bits. Assuming that the data is read four times, 1.6
Seconds × 4 = 6.4 seconds. That is, when the predetermined time is 6.4 seconds, for example, the rise in water level is 36 bits =
If the time when the person rises by 9 cm or more is taken as a person's bathing, the water level can be detected with twice the safety factor malfunction. On the other hand, when a person takes a bath, the water surface is disturbed, so if the read data is compared as it is with the output of the water level sensor, the disturbance on the water surface will be the disturbance of the water level as it is, so for example, replace the data with a moving average Doing so enables a more stable comparison. For example, data is read every 1.6 seconds, but the fourth data is the result of adding the current fourth data to the value of three times and dividing by 4 as the water level output of the current moving average. It is. When the water level sensor output rise determination means 21 determines that a person has taken a bath in the above-described manner, a signal is sent from the main body transmission / reception section 15 to the remote control transmission / reception section 16, and the power supply control means 25 resumes power supply and stops power supply. The display on the display means 24 is turned off, the display is displayed on the driving information display means 23, and the reception of the driving instruction from the remote controller 14 is resumed.

[0012]

As is apparent from the above description, the following effects can be obtained according to the wireless transmission / reception apparatus of the present invention.

The timer means changes the predetermined time and displays the operation information display means relating to the operation state of the appliance, and the power supply control means for the transmission / reception unit, based on the judgment contents of the information on the operation state of the appliance and the operated switch. The power supply from the power supply is time-limited to reduce power consumption of the power supply control means due to unnecessary power supply, and the power supply stop display means to indicate that power supply is stopped for power saving, thereby causing device failure or power control. It is possible to prevent erroneous determination that power supply is impossible due to the means, and more effective power saving.

[0014] Further, since the display section of the driving information display means is automatically displayed upon detecting that a person takes a bath, there is no troublesome operation of the switches, and the usability is improved.

[Brief description of the drawings]

FIG. 1 is a system diagram of a wireless transmitting / receiving apparatus according to an embodiment of the present invention.

FIG. 2 is a block diagram showing an internal configuration of a remote controller of the apparatus.

FIG. 3 is an explanatory diagram showing a water level that changes when a person takes a bath.

FIG. 4 is a characteristic diagram showing an output change of a water level sensor corresponding to the water level.

FIG. 5 is a system diagram of a conventional wireless transmission / reception device.

FIG. 6 is a block diagram showing an internal configuration of a remote controller of the apparatus.

[Explanation of symbols]

 13 Bath water heater 14 Remote controller 16 Remote controller transmitter / receiver 18 Water level sensor 19 Water level sensor output reading means 20 Water level sensor output comparison / determination means 21 Output rise determination means within a predetermined time 22 Switch 23 Operation information display means 24 Power supply stop display means

────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Hiroshi Takechi 1006 Kazuma Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (56) References JP-A 7-110161 (JP, A) JP-A 6-106 288564 (JP, A) JP-A-3-13825 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) F24H 1/00 602 F24H 1/10 301

Claims (1)

(57) [Claims] 1. A bathtub, a bath device for supplying hot water to the bathtub,
A remote controller for remotely controlling the bath apparatus; a water level sensor for detecting a water level in a bath tub; a water level sensor output reading means for reading an output of the water level sensor; and an output of the water level sensor. A water level sensor output comparison / determination means, and a water level sensor output rise determination means, wherein the remote control includes a switch for instructing the bath apparatus to operate, a detection means for detecting an operation signal of the switch, and the bath apparatus by a wireless signal. Transmission / reception means for transmitting / receiving data to / from the transmission / reception means, power supply control means for supplying power to the transmission / reception means, display means for displaying operation information from the bath apparatus and operation information of the switch, The time measurement is started by judging the operation information of the Timer means for outputting a power supply stop signal to the power control means when a predetermined time corresponding to the content of the timer is counted, and receiving the stop signal from the timer means and supplying power from the power control means to the transmission / reception means. Power-supply display means for displaying a message indicating stoppage, and operation-information display means for displaying a switch operation instruction signal and operation information from the bath apparatus within the predetermined time, wherein the power-supply display means is configured to stop power supply. Is displayed, when the water level sensor output rise determination means determines that the water level is rising, the power supply control means restarts power supply to the transmission / reception means, and the operation information display A wireless transmission / reception device for displaying operation information and switch operation information on a means.