Integrated circuit built-in tire and travel data collection system for transport apparatus

Abstract

To carry out chain control visually by a human that is common for a vehicle, which is transportation means, to be pulled into a parking lot or the like.SOLUTION: A travel data collection system for a transport apparatus comprises: a tire equipped with an integrated circuit, which has any one or two or all three of a sensor that detects a pressure change in the tire due to a road surface irregularity, a sensor that detects sound noise, and a sensor that detects an adjustable speed change; an integrated circuit for the sensors, a power supply and a transmitter; and an information reading device that receives data from the tire equipped with an integrated circuit.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to an integrated circuit Using a tire with built-in , relates to a system for collecting travel data of a transportation device.

[0002] The present invention uses a noise sensor built into the tire to detect road noise, pattern noise, and cavity resonance noise that occur during driving, and Driving data The system determines the state of wear and type of tire (summer tire, winter tire) based on the sensor. The sensor is located near the slip sign of the tire and reflects the state of wear, contributing to determining the expiration date of the tire. The system also has a configuration in which data is acquired while the vehicle is running by an information reader installed outside the vehicle. [Background technology]

[0003] Conventional vehicles or tires and tire anti-skid devices for vehicles are not equipped with a system for collecting driving data of these vehicles, Workers check tires and anti-skid equipment on the road Visual inspection This is necessary, and therefore involves the risk of traffic accidents, etc. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent Publication No. 2021-095128 [Patent Document 2] Special Publication 2010-530329 [Patent Document 3] Patent Publication No. 2008-267862 [Patent Document 4] Special Publication 2007-515856 [Patent Document 5] Patent Publication No. 2005-114558 [Patent Document 6] Patent Publication No. 2001-525281 [Patent Document 7] Special Publication 2001-525283 [Patent Document 8] Special table flat 09-509488 [Patent Document 9] Patent Publication No. 05-221207 [Patent Document 10] Jitsuzenhei 02-12304 [Patent Document 11] Jitsuzen Heisei 02-12304 Summary of the Invention [Problem to be solved by the invention]

[0005] Patent Document 1 relates to a flexible tire sensor unit. Patent Document 2 relates to tire pressure detection with a low-power device. Patent Document 3 relates to an in-tire gas pressure measurement device. Patent Document 4 relates to a high-power antenna connection structure for a tire electronics assembly. Patent Document 5 relates to a tire pressure detection device. Patent Document 6 relates to a pneumatic tire with a radio frequency transponder antenna. Patent Document 7 relates to a tire pressure sensor and related methods. Patent Document 8 relates to an active integrated circuit transponder and sensor device for transmitting vehicle tire replacement data. Patent Document 9 relates to the installation of an electronic circuit within a tire. Patent Document 10 relates to a pneumatic tire with an integrated circuit transponder and a pressure signal converter. Patent Document 11 relates to a pneumatic tire with a transponder. All of these patents are intended to detect tire pressure and temperature. However, when roads are subject to chain restrictions, a human visually inspects the tires or tire anti-skid devices attached to a vehicle to be driven to determine whether the tires or tire anti-skid devices comply with the chain restrictions.

[0006] When chain regulations are in place, the following problems arise:

[0007] Since workers must visually inspect the work on the road, there is a risk of traffic accidents.

[0008] Because winter tires and summer tires have similar shapes, workers may mistakenly determine whether the tires and tire anti-skid devices comply with chain regulations.

[0009] As workers work on the roads, vehicles travel at slow speeds, causing congestion.

[0010] Furthermore, in the method of identifying a vehicle by reading the number using an automatic vehicle number reader, it is necessary to modify the corresponding program each time a new regional number blade (so-called local number) is introduced. [Means for solving the problem]

[0011] a sensor that detects noise caused by unevenness in the road surface; an integrated circuit, power supply and transmitter for said sensor; a tire with an integrated circuit having and an information reader for receiving data from the tire with the integrated circuit. The problem is solved by a transportation device travel data collection system comprising: [Effects of the Invention]

[0012] According to the present invention, noise obtained from a tire Driving data The wear condition and type of tires can be accurately determined based on this information, which makes it possible to address a wide range of applications, such as managing tire expiration dates, understanding wear conditions, and preventing theft, compared to detection using conventional acceleration sensors.In addition, by linking with an information reader installed outside the vehicle, it is possible to quickly provide information to traffic management systems and drivers.

[0013] The sensor, integrated circuit, power supply and transmitter are inexpensive whether installed during or after tire manufacture.

[0014] Even if individual numbers are assigned to all tires and anti-skid devices for tires, there is no risk of the same numbers being assigned to vehicles or tires and anti-skid devices for vehicles, as they are consumables.

[0015] The processing speed is faster than current road cameras (based on images) and judgments can be made more reliably.

[0016] In the method of identifying a vehicle by reading the number using an automatic automobile number reader, it is necessary to modify the corresponding program every time a new regional name display number blade (so-called local number) is introduced, but this is not necessary if sensors, integrated circuits, etc. are attached to the means of transport or the tires and tire anti-skid devices for the means of transport.

[0017] In addition, when an integrated circuit for recording and calculating information is attached to a tire or tire anti-skid device, depending on the attachment position, the integrated circuit will wear out and break as the tire wears, making it possible to determine the expiration date.

[0018] When sensors and integrated circuits are attached to a means of transport, they are pre-assembled in positions where they cannot be removed and where they cannot be easily removed, thereby preventing unauthorized use.

[0019] In tires and anti-skid devices for tires of transportation means, by arranging the attachment position of the so-called slip sign on the side close to the rotation axis and at a substantially right angle to the rotation axis of the tire, if the slip sign appears, the integrated circuit will wear out and become non-functional with further use, and the expiration date of the tire can be determined.

[0020] Because the size of the integrated circuit itself is small, it is easily worn out. Information can still be obtained from the integrated circuit that is installed in a location that is not worn out, separate from the integrated circuit that has been worn out.

[0021] By attaching sensors and integrated circuits to the means of transport and reading individual information from the means of transport, its tires, and tire anti-skid devices using an automatic vehicle number reading device installed on a road or the like, it becomes easier to identify a stolen vehicle.

[0022] Even if the tires are replaced after theft, it is easy to identify the stolen vehicle using information from the IC (an integrated circuit for recording and calculating information) of the vehicle's previous transportation and the information from after the theft.

[0023] The expiration date of the tire can be read from information from an integrated circuit attached to the vehicle and the tire for the vehicle, and the information can be communicated to the driver or the like via the vehicle.

[0024] By managing the information on ICs attached to means of transport and tires for means of transport at the time of manufacture, sale, vehicle inspection, etc., it will be possible to easily locate owners, etc. in the event of illegal dumping of means of transport and tires for means of transport. Tires and anti-skid devices for tires will be registered at the time of sale. [Brief explanation of the drawings]

[0025] [Figure 1] Schematic diagram of the vehicle travel data collection system (when the vehicle is remote) [Figure 2] Schematic diagram of a vehicle travel data collection system (when vehicles are in close proximity) [Figure 3] Illustrative diagram of a data processing device [Figure 4] An explanatory diagram of the location of the information reader [Figure 5] An explanatory diagram of sensors attached to four locations on the tire DETAILED DESCRIPTION OF THE INVENTION

[0026] Next, the present invention will be described in detail by way of examples with reference to the accompanying drawings. [Example]

[0027] In FIG. 1, a noise sensor 3 installed on a tire 2 of a vehicle 1 collects road noise, pattern noise, and cavity resonance noise generated while the vehicle is running. Collected Data This determines the tire wear condition and tire type (e.g., summer tire, winter tire). Noise Sensor 3 is placed near the slip sign part of the tire and is configured to reflect the wear state of that part. Similarly, the transmission equipment in the sensor 3 transmits the information to an information reader 4 (installed outside the vehicle) located outside the vehicle.

[0028] 3, data from the information reader 4 is sent to the data processor 5, and the necessary data is analyzed by an analysis function 7. Furthermore, a change function 8 allows the settings of the data processor 5 to be changed.

[0029] As shown in FIG. 4, the information reader 4 may be located directly below the tire as at position 9, in front of the tire as at position 10, or to the side of the tire as at position 11.

[0030] FIG. 5 shows a case where four sensors 3, 3-1, 3-2, 3-3, and 3-4, are arranged at 90° intervals on the side of the tire slip line 12 that is close to the rotation axis and substantially perpendicular to the rotation axis of the tire.

[0031] Noise generated by tires includes road noise, pattern noise, and cavity resonance noise. Road noise is the noise that is transmitted from the unevenness of the road surface to the tires and then to the body of the car.

[0032] Pattern noise is noise caused by tires. When the "tread pattern" engraved on the tire's tread surface, which is the contact surface, comes into contact with the road surface, the air is compressed and vibrates, and when this air is released by the rotation of the tire, high-frequency sounds such as "whoosh" and "whoosh" are generated. Pattern noise is characterized by a higher pitch than road noise. The amount of pattern noise generated varies depending on the shape of the tire's tread pattern and the depth of the grooves.

[0033] Cavity resonance is a noise caused by the air inside the tire vibrating due to an external impact. When the tire goes over large bumps or impacts, the air inside the tire vibrates suddenly, and the vibrations are transmitted to the interior of the vehicle. Characteristic sounds include a "honking" sound when driving over rough roads at high speeds, and a "crackling" sound when going over a seam.

[0034] Road noise and pattern noise can be reduced by switching to quieter tires. Comfort tires, which are designed for long-distance travel and prioritize ride comfort and quietness over conventional tires, incorporate technology to reduce road noise and pattern noise, making it possible to reduce noise.

[0035] Increasing the aspect ratio of tires can reduce road noise. Also, road noise reduction products such as wheel spacers and shock absorbers made from special materials can absorb vibrations and reduce noise transmitted to the interior of the vehicle.

[0036] As mentioned above, tire noise varies depending on the tire.

[0037] Regarding tire internal pressure, Hideo Sakai has clarified that the distribution of contact pressure varies depending on the load, driving control power, lateral force, and driving braking force. (The Journal of the Society of Rubber Industry, Japan: Vol. 69, No. 11 (1996), pp. 757-762)

[0038] The internal pressure of a tire varies depending on the load, driving control force, lateral stress, and driving and braking force.

[0039] Driving styles differ depending on the driver, and are particularly evident in the acceleration and deceleration of the vehicle, so this is sensed using an acceleration sensor.

[0040] The sensor detects noise data caused by road surface irregularities, and can determine the type of tire or whether it is a tire anti-skid device, thereby identifying whether it is the same vehicle. [Industrial Applicability]

[0041] The present invention makes it possible to collect data on the suitability of a means of transport for chain regulations and on the passage of base stations such as the N system from driving data of the means of transport or the tires and anti-skid devices for tires, which is of industrial value. [Explanation of symbols]

[0042] 1: Vehicle, 2: Tire, 3: Sensor, 4: Information reader, 5: Data processing device, 6: Data from tire sensor and integrated circuit, 7: Function to check required data, 8: Function to change setting value of data processing device, 9: When the information reader is located directly under the tire, 10: When the information reader is located in front of the tire, 11: When the information reader is located next to the tire, 12: Slip sign

Claims

1. any one of three sensors, or any two of three sensors, or all three sensors, including a sensor that detects changes in tire pressure due to unevenness of the road surface, a sensor that detects noise, and a sensor that detects changes in acceleration and deceleration; an integrated circuit, power supply and transmitter for said sensor; a tire with an integrated circuit having and an information reader for receiving data from the tire with the integrated circuit. A transportation device travel data collection system comprising:

2. A road assistance system that reads information from the travel data collection system of a transportation device according to claim 1 and assists in implementing heavy rain restrictions, road restrictions due to snow, or chain restrictions.

3. A passing vehicle search support system that can read information from the transportation device driving data collection system described in claim 1, identify the vehicle from the results, and search for vehicle passing data collected by an information reading device installed at each base point, such as the N system.

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