JPS6163189A - Ultrasonic wireless remote controller - Google Patents

Abstract

PURPOSE:To simplify a transmitter by providing a device, which generates the ultrasonic wave of a specific frequency band in a single shot, and an ultrasonic receiving part providing with a device which displays a discrimination signal for an ultrasonic transmitter and controlling the transmission from the transmitter with a signal pattern. CONSTITUTION:The ultrasonic wave of a specific frequency band is generated in a single shot from an ultrasonic transmitter (source) 1 of an ultrasonic wire less remote controller, and this ultrasonic signal passes a microphone 4 and is amplified by an amplifier 5 and is applied to a tuning circuit 6. The ultrasonic wave from the circuit 6 is supplied to a microcomputer 8 as the ultrasonic receiver after waveform shaping in a means 7. A special signal pattern is gener ated in this computer to control a control machine 9. Received signals from an X-ray transmission source or the like are controlled by the ultrasonic receiver and are displayed on a display device 10.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to ultrasonic application equipment, and particularly to ultrasonic wireless transmission and reception using ultrasonic waves as a communication medium.

Configuration of the conventional example and its problems The main circuit configuration required for the transmission/reception method in the conventional ultrasonic wireless remote controller is shown in the block diagram of FIG. In the figure, 1 is a pulse generation circuit (which can be thought of as a device that encodes ultrasonic waves), 2 is an oscillation circuit, 3 is an ultrasonic transmitter consisting of an ultrasonic transmitting microphone, 4 is an ultrasonic receiving microphone, and 5 is an ultrasonic receiving microphone. An amplification circuit, an etri tuning circuit, T a waveform shaping circuit, 8 an ultrasonic receiver consisting of a microcomputer, and 9 a device requiring control. In this transmitter/receiver circuit configuration, in order to prevent malfunctions due to noise or increase the transmission speed, and to create various codes, the pulse generation circuit 1 in the ultrasonic transmitter section is configured with disk sorting, and a microcomputer is used to generate special signals. A pattern is generated, the transmitted signal pattern is read in the ultrasonic receiver section, and processing is performed on the signal pattern. An example of the signal pattern is shown in FIG. The data between the pulses A and B in the figure is used as data, and various types of codes are created based on the difference in the pulse interval.

However, with this configuration, a special code pattern must be created using an ultrasonic transmitter, which requires a transmitter with the above configuration, and this requires a circuit to generate the code. However, since it is necessary to adjust the pulse interval or the oscillation frequency, it takes a considerable amount of time to manufacture.

OBJECTS OF THE INVENTION In view of the above-mentioned problems, it is an object of the present invention to simplify an ultrasonic transmitter.

Structure of the Invention In order to achieve this object, the present invention provides an ultrasonic transmitter (source) in addition to a device for singly generating ultrasonic waves in a certain specific frequency band and eight sound wave receiving components. source)
It consists of an ultrasonic receiving part that has a display device that displays a regulation signal for the ultrasonic receiver. The ultrasonic transmitter (source) is completely simplified by regulating the transmission signal for the ultrasonic transmitter (source), that is, by performing ultrasound transmission and reception interactively.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings.

In FIG. 1, reference numeral 10 denotes a display device that is part of the ultrasonic receiver and displays a regulatory signal to the ultrasonic transmitter (source). Other parts of the ultrasonic receiver are similar to those of the conventional example. 11 is an ultrasonic transmitter (source), which basically transmits a certain frequency band that can be received by the ultrasonic receiver to the display device 1.
It is generated in response to 0. Note that the simplest ultrasonic transmitter 11 may be a sound generating means using both human hands.

In the above configuration, ultrasonic transmission and reception as shown in FIG. 2 is performed. In FIG. 2, X is an example in which ultrasonic waves are generated from an ultrasonic transmission source. Y is the display device 10 that displays the regulation signal of the ultrasonic receiver, and Z indicates the generation timing of a buzzer that emits a response sound.

The ultrasonic transmission/reception system will be explained below with reference to the flowcharts of FIGS. 2 and 4 and the regulation display device of FIG. 3.

In the flowchart of FIG. 4 below, it is confirmed whether or not an ultrasonic wave has arrived for a certain specific time.

A: If the result of the above is that no ultrasonic waves arrive, the display section 10a of the display device 10 indicates that ultrasonic waves can be received.

When the display shown in A above is displayed, the ultrasonic transmitter (source) 11 generates a signal to send a signal as a predetermined number of pulses at a specific time.

Process: Check whether the specified number of pulses have been received.

E...Use the results of the above steps to check whether ultrasonic waves have arrived for a specific period of time.

Power: If no ultrasonic waves arrive as a result of step (e) above, the receiving side displays the transmission time on the display device 10 using an LED or the like on the display device 10. That is, on the display device 10, the images are displayed in the order of 1ob→10c→1od→10a at specific time intervals.

It will also notify you with a buzzer each time.

Key...If you send ultrasonic waves from the ultrasonic transmission source again at the displayed area, a buzzer will sound to indicate that the reception has been received, and the displayed part will be registered on the receiving side. .

In this case as well, check to see if the ultrasonic wave arrives at a specific time in order to distinguish it from noise.

K... As a result of the above, if the ultrasonic wave does not arrive, it is officially registered and activated.

Therefore, by performing ultrasound transmission and reception in an interactive manner, the ultrasound transmitter (source) can be simplified compared to the conventional method.

Effects of the Invention As is clear from the description of the embodiments above, the present invention is capable of manufacturing a conventional ultrasonic transmitter, adjusting the circuit for creating its transmission pattern, matching the transmission frequency, and improving the circuit. There is no need to configure the device itself, and as long as a specific frequency is emitted, transmission and reception is possible, and the ultrasonic waves transmitted at that time only need to be output once, so there is a wide range of things that can be used as a transmission source. Another advantage is that the complicated transmitter described above is no longer necessary.

Note that the term "ultrasound" used so far refers to sound waves that are not intended for hearing.

[Brief explanation of drawings]

Fig. 1 is a block diagram of the configuration of an ultrasonic transmitter/receiver showing an embodiment of the ultrasonic wireless remote controller of the present invention, Fig. 2 is a timing diagram of ultrasonic transmission and reception, and Fig. 3 is a diagram of the display device accompanying it. 4 is a flowchart showing the exchange, FIG. 5 is a block diagram of the configuration of a conventional ultrasonic transmitter/receiver, and FIG. 6 is a diagram showing an example of a transmission code of a conventional ultrasonic transmitter. . 1o... Display device, 11... Ultrasonic transmitter (source). Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 2 Figure 3 Figure 4 Figure 5 Figure LA--B

Claims (1)

[Claims] An ultrasonic transmission source (device) that can generate a specific frequency band singly, an ultrasonic receiving microphone that can receive only a specific frequency band, and an amplification circuit that amplifies the received signal. It consists of a receiving circuit consisting of a tuning circuit and a waveform shaping circuit, and a microcomputer that recognizes the signal output from the receiving circuit, controls the equipment, and controls the display device that displays the regulation signal for the ultrasonic transmission source. An ultrasonic wireless remote controller that allows interactive transmission and reception of ultrasonic waves.