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Monitoring device and tire air pressure monitoring system

A monitoring device and detection device technology, applied in tire measurement, measuring device, remote measurement/remote control selection device, etc., can solve problems such as air pressure signal reception failure, air pressure signal interference, etc.

Inactive Publication Date: 2018-06-08
AUTONETWORKS TECH LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In addition, if the air pressure signal is sent from a plurality of detection devices to the monitoring device at the same time, the air pressure signal will interfere, and the reception of the air pressure signal may fail.

Method used

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  • Monitoring device and tire air pressure monitoring system
  • Monitoring device and tire air pressure monitoring system
  • Monitoring device and tire air pressure monitoring system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0056] figure 1 It is a schematic diagram showing a configuration example of the tire air pressure monitoring system according to Embodiment 1 of the present invention. The tire pressure monitoring system according to Embodiment 1 includes a monitoring device 1 provided at an appropriate location of a vehicle body, a detection device 2 provided at a hub of a tire 3 provided on a vehicle C, and a notification device 4 . In the tire air pressure monitoring system according to Embodiment 1, the monitoring device 1 acquires air pressure information of each tire 3 through wireless communication with each detection device 2 , and the notification device 4 performs notification according to the acquired air pressure information. The LF transmitting antenna 14 a corresponding to each tire 3 is connected to the monitoring device 1 . For example, the plurality of LF transmission antennas 14 a are partially installed toward the right front, left front, right rear, and left rear of the v...

Embodiment approach 2

[0102] The configuration of the tire air pressure monitoring system of Embodiment 2 is the same as that of Embodiment 1, and only the procedure of adjusting the transmission intensity is different from Embodiment 1. Therefore, the main differences will be described below. The other configurations and effects are the same as those in Embodiment 1, so corresponding parts are given the same reference numerals, and detailed descriptions are omitted.

[0103] Figure 7 It is a flowchart showing the procedure of the transmission intensity adjustment process and the tire air pressure monitoring process of the second embodiment. The monitoring device 1 of the second embodiment executes the same processing as that of step S11 to step S17 in the first embodiment.

[0104] When it is determined that the air pressure signal transmitted from the single detection device 2 has been received (step S17: YES), the control unit 11 increases the transmission intensity of the request signal by a ...

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Abstract

A tire air pressure monitoring system is provided with: a plurality of detection devices that are provided individually to a plurality of tires in a vehicle and that wirelessly transmit an air pressure signal including air pressure information for the tires in response to a request signal; and a monitoring device that transmits the request signal to the detection devices, receives the air pressuresignals transmitted from the detection devices in response to the request signal, and monitors the air pressure of each of the tires. The monitoring device is provided with a request signal transmission unit for transmitting the request signal to an area including one tire position, and an air pressure signal reception unit for receiving the air pressure signals. The monitoring device determineswhether air pressure signals transmitted from the plurality of detection devices have been received and changes the transmission strength of the request signal in accordance with the determination result.

Description

technical field [0001] The invention relates to a monitoring device and a tire pressure monitoring system. [0002] This application claims priority based on Japanese application No. 2015-206644 filed on October 20, 2015, and uses all the contents described in the above-mentioned Japanese application. Background technique [0003] There is a tire pressure monitoring system (TPMS: Tire Pressure Monitoring System) that detects the air pressure of a tire installed on a vehicle and issues a warning to a user if the detected air pressure is abnormal. The tire air pressure monitoring system includes: a detection device that detects the air pressure of the tire, and wirelessly transmits an air pressure signal related to the detected air pressure using UHF frequency band radio waves; and a monitoring device that receives the air pressure signal wirelessly transmitted from the detection device, The received air pressure signal monitors the air pressure of the tire. The detection de...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60C23/04G01L17/00G08C17/00G08C17/02
CPCG01L17/00H04Q2209/40H04Q2209/75H04Q9/00B60C23/0442B60C23/0461B60C23/0464B60C23/0438
Inventor 佐分利诚滨田芳博
Owner AUTONETWORKS TECH LTD