JPH04126131U - acoustic sensor - Google Patents

Abstract

(57) [Summary] [Purpose] This invention attempts to detect security related to automobile tires at a remote location. [Structure] The outline of the structure of this invention is to use acoustic sensors to detect external pressure applied to tires. There are relatively few ways to do this, by catching the stimulus and electrically amplifying the signal.However, due to the need to select the stimulus by external pressure, we use string vibration to detect the desired sound and the non-required sound. It is a device and system that can be used in conjunction with a drive amplifier to receive signals at a remote location via a communication device.

Description

[Detailed explanation of the idea] [Industrial application field] This invention is a device that serves as a means to relieve congestion of cars on roads. be.

[Conventional technology] Traditionally, various sensors have been fixed at building entrances, etc., and have been used especially with wires. However, it is said that the sensor signal is detected while moving in the form of reception. Umono does not exist as the above-mentioned equipment, specifically cars parked on the road. The police mark the car's tires and write the start time of the warning on the road. The owner of the car must move quickly within a certain period of time, but If you wait too long, it will be taken away by a tow truck. these things The current situation is that the amount of time, effort, money, etc. involved is enormous.

[Problem that the idea aims to solve] If the road becomes congested due to cars parked on the road, call the police. Therefore, when a warning is given, vehicles can be moved quickly to reduce road congestion. A warning must be promptly conveyed to the owner of the relevant vehicle in order to resolve the issue to some extent. This is what we intend to do with the device of the present invention. Nothing like this again In addition to methods to prevent damage to tires, there is also a need for safety related to automobile tires. It is also possible to use it for monitoring purposes to prevent punctures.

[Configuration for achieving purpose] Acoustic sensors, i.e., detect acoustic vibrations from microphones, speakers, piezoelectric buzzers, etc. By an element that converts it into an electrical signal, by a device attached to that element. Detects the contact sound near the tire and turns on/off/turns off the signal generation circuit in the drive circuit. When the signal generation circuit starts to drive, input that signal to the next stage transmission circuit. The signal is emitted in the form of electromagnetic waves and is picked up by a receiver located at a certain distance. The sound is detected and reproduced to be generated. Then, the sensor part is It can be fixed to the center of the ear foil with a magnet, and The main body of the sensor is positioned near the tire's contact surface by a support that is attached to a magnet. It is designed to monitor the front side of the tire.

[Effect] With the above configuration, when the sensor is monitoring the front side of the tire, the When some acoustic change occurs within a certain range nearby, the sensor drive circuit is activated and turns on. On or off, the signal generation circuit turns on, and then the signal generation circuit turns on. The output of Therefore, the signal input to the transmitter is quickly modulated and sent to the antenna. The radio waves reach within the transmitter's capability range from Alternatively, it is received and detected by a receiver in a driving state and the signal sound and direct sound are obtained. I decided to go out and ask about it, and I got some information that warranted a warning about the car's tires. It turns out.

[Example] Sensor 3 is attached to the vertical part of the wheel of the vehicle tire as shown in Figure 2. The detection range of the sensor is set as 8, and the coated conductor 13 connects the device body 10. By connecting the main body 10 to the transmitter 11 with a shielded wire, The settings for the monitoring device are completed.As for the power supply, you can connect it to the main unit even from the car battery. It doesn't matter if the power supply is installed or not, and you can also use a separate receiver 12 and wait for reception. If you wait at a distance from the car, you will be hit by a stick, for example, as shown in 14. When an object enters the monitoring range and comes into contact with the tire, the acoustic sensor detects the Therefore, it is detected and a string signal sound is generated, which can be heard on the receiving side. The range and frequency of radio waves are determined based on radio regulations and are not particularly limited. is not stated.

[effect] As is clear from the examples, we have simplified the matters stated in ``Problems to be solved by the invention.'' It can simply be solved, that is, congestion and other problems related to roads. This makes it possible to save a huge amount of time, effort, money, etc.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of the electronic circuit of the present invention. 1 is a sensor, 2 is a sensor drive circuit section, 3 is a communication device section, and 4 is an antenna. Figure 2 is a concrete diagram of the device according to the present invention attached to a car. 5 is a magnet, 6 is an electrical signal converter of a sensor, 7 is a support, and 8 is a piano wire. , 9 is a plug, 10 is a sensor drive amplifier, 11 is a communication device, 12 is a receiving side communication device, 13 is an electric wire, 14 is a rod

Claims (1)

[Claims for Utility Model Registration] 1) A sensor that detects sound caused by vibration of an object is in contact with the piano wire, and when the piano wire receives pressure from some force, physical A sensor configured so that sound due to acoustic characteristics is transmitted to the acoustic sensor. 2) The sensor in item 1 is connected to its drive circuit and amplifier, and is configured so that the amplifier can electrically amplify the signal and control the degree of amplification and frequency characteristics. 3) The sensor drive circuit in item 1 can adjust its sensitivity. 4) The sensor and its drive circuit in Paragraph 1 shall not depend on that method. 5) The sensor in item 1 must have a circuit and mechanism that can arbitrarily adjust its detection distance and range together with a drive circuit. 6) The sensor in item 1 must be connected to its drive circuit either through an insulated conductor or wirelessly. 7) The sensor in item 1 is fixed to the center of the wheel of the car's tire with a magnet or the like, and is attached to the fender, regardless of the method of attachment. 8) The sensor in Paragraph 1 shall have a detection range of the tire and the vicinity of the outside of the tire, and be adjustable in accordance with Paragraph 5. 9) Two or more sets of sensors are provided for the drive circuit, and when one of the sensors performs a detection operation, the next stage signal generation circuit is activated. 10) The sensors mentioned in Paragraph 9 shall be installed in two sets, front and rear, in one-to-one correspondence to the tire. 11) It is possible to connect another signal generation circuit activated by the input of the sensor drive circuit in subparagraph 1 so that even indirect signal sound can be detected, and these signals can be connected to the wireless transmitter and the receiver can be configured so that it can be heard at a remote location. 12) Concerning mechanisms and electronic circuits characterized by the above items 1 to 11, and systems according to the above 11 items.