WO2015051534A1 - 基于蓝牙的轮胎状态检测装置 - Google Patents

基于蓝牙的轮胎状态检测装置 Download PDF

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Publication number
WO2015051534A1
WO2015051534A1 PCT/CN2013/085052 CN2013085052W WO2015051534A1 WO 2015051534 A1 WO2015051534 A1 WO 2015051534A1 CN 2013085052 W CN2013085052 W CN 2013085052W WO 2015051534 A1 WO2015051534 A1 WO 2015051534A1
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Prior art keywords
bluetooth
module
control module
condition detecting
tire condition
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PCT/CN2013/085052
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English (en)
French (fr)
Inventor
郑贤
Original Assignee
深圳市集万讯电子技术有限公司
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Application filed by 深圳市集万讯电子技术有限公司 filed Critical 深圳市集万讯电子技术有限公司
Priority to PCT/CN2013/085052 priority Critical patent/WO2015051534A1/zh
Publication of WO2015051534A1 publication Critical patent/WO2015051534A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
    • B60C23/02—Signalling devices actuated by tyre pressure
    • B60C23/04—Signalling devices actuated by tyre pressure mounted on the wheel or tyre
    • B60C23/0491—Constructional details of means for attaching the control device
    • B60C23/0496—Valve stem attachments positioned outside of the tyre chamber

Definitions

  • the utility model relates to a Bluetooth-based tire condition detecting device. Background technique
  • TPMS tire pressure monitoring system
  • the TPMS consists of a number of high-sensitivity sensor modules mounted on each tire.
  • the tires are monitored for real-time monitoring of tire pressure, temperature, etc., and transmitted wirelessly to the central monitor included in the TPMS.
  • the device displays the current tire pressure and temperature, and compares it with the set standard pressure value and safe temperature, and issues corresponding sound and light alarms for different abnormal conditions.
  • the existing TPMS tire condition detecting device generally transmits a detection signal to a central monitor through a radio frequency method, and the wireless transmitting method is susceptible to electromagnetic interference, making signal transmission unstable and easily losing data.
  • the receiving terminal due to the limitation of the transmission protocol used by the tire condition monitoring device, the receiving terminal must be customized, the cost is high, and it is inconvenient to directly receive the relevant detection signal using a smart mobile device such as a smart phone or a tablet computer.
  • the object of the present invention is to provide a Bluetooth-based tire condition detecting device that can transmit data safely and reliably, and can directly connect a receiving terminal having a Bluetooth function.
  • a Bluetooth-based tire condition detecting device includes a pressure sensor, a temperature sensor, an acceleration sensor, a control module, a Bluetooth module, an antenna module, and a battery; the pressure sensor and the temperature sensor are used to detect the pressure and temperature of the tire, and generate a corresponding a tire status signal; the control module is configured to send the tire status signal to the Bluetooth module; the Bluetooth module is configured to transmit the tire status signal through the antenna module; the battery is used to supply power to the tire condition monitoring device; And detecting a vehicle acceleration, and transmitting a corresponding acceleration detection signal; when the control module receives the acceleration detection signal, the Bluetooth module is activated to enable the Bluetooth module to be in a transmission state; when the control module does not receive the acceleration detection signal, The control module controls the Bluetooth module to be in a sleep state.
  • the tire condition detecting device further includes a first circuit board, a second circuit board, a cover body and a head; the cover body is detachably sealed and mounted outside the head, and a structure is formed between the cover body and the head Closing the receiving cavity; the acceleration sensor and the control module are mounted on the first circuit board, the pressure sensor and the temperature sensor are mounted on the second circuit board, the antenna module, the battery, the Bluetooth module, the first circuit board and the The two circuit boards are sequentially received in the closed receiving cavity from top to bottom.
  • the head is an aluminum-copper riveted housing.
  • the periphery of the circuit board of the Bluetooth module contacts the inner wall of the head. Further, the closed receiving cavity is filled with epoxy resin and rubber.
  • cover body and the head are screwed together.
  • the Bluetooth module includes a Bluetooth 4.0 protocol chip.
  • control module includes a single chip.
  • the cover is a plastic housing.
  • the utility model can reliably and safely transmit the tire state signal through the bluetooth module and the antenna module, and adopts the low-power Bluetooth 4.0 transmission protocol, which can be quickly connected to the receiving terminal, which is beneficial to energy saving, and the receiving terminal does not need to be customized by the manufacturer.
  • Mobile electronic devices with Bluetooth modules such as smart phones and tablets, can be used as receiving terminals to display tire status, which is very convenient, low cost and more personalized.
  • the utility model detects whether the vehicle is driven by the acceleration sensor. When the vehicle is running, the control module activates the bluetooth module to transmit data. When the vehicle is not running, the control module turns off the bluetooth module to save energy and greatly expand. Battery life.
  • the device has good anti-interference, good sealing performance, long service life and stable and reliable operation.
  • the head is an aluminum-copper riveted casing, so that the device is not easily electrolyzed and rusted due to long-term contact with the vehicle valve.
  • the closed receiving cavity is also filled with epoxy resin and rubber to achieve a high and low temperature resistant, high pressure resistant and acid and alkali resistant sealing environment, thereby prolonging the service life of the device and making the device more stable and reliable.
  • the periphery of the circuit board of the Bluetooth module contacts the inner wall of the head to make the effect of shielding the interference signal better.
  • the antenna module adopts an antenna on the PCB, which has the advantages of easy installation, non-deformation, stability and reliability.
  • the utility model adopts a low-power chip, which can further realize energy saving.
  • the control The module manages the power supply of each module to reduce power consumption more effectively.
  • Figure 1 is a block diagram showing a preferred embodiment of a Bluetooth-based tire condition detecting device of the present invention.
  • Fig. 2 is a perspective view of the tire condition detecting device of Fig. 1.
  • Fig. 3 is a sectional view showing the combination of the tire condition detecting device of Fig. 1.
  • Fig. 4 is a circuit diagram of a pressure sensor and a temperature sensor of the tire condition detecting device of Fig. 1.
  • Fig. 5 is a circuit diagram of a Bluetooth module of the tire condition detecting device of Fig. 1.
  • Fig. 6 is a circuit diagram of a control module and an acceleration sensor of the tire condition detecting device of Fig. 1. detailed description
  • the present invention relates to a Bluetooth-based tire condition detecting device.
  • the preferred embodiment includes a pressure sensor 55 , a temperature sensor 51 , an acceleration sensor 58, a control module 60 , a Bluetooth module 40 , and an antenna module .
  • the pressure sensor 55 and temperature sensor 51 are used to detect the pressure and temperature of the tire and generate a corresponding tire condition signal.
  • the control module 60 is configured to use the tire status signal Send to the Bluetooth module 40.
  • the Bluetooth module 40 is configured to transmit the tire status signal through the antenna module 20.
  • the battery 30 is used to supply power to the tire condition monitoring device.
  • the acceleration sensor 58 is configured to detect the acceleration of the vehicle and transmit a corresponding acceleration detection signal. When the control module 60 receives the acceleration detection signal, the control module 60 activates the Bluetooth module 40 to cause the Bluetooth module 40 to be in a transmission state. When the control module 60 does not receive the acceleration detection signal, the control module 60 controls the Bluetooth module 40 to be in a sleep state to save energy and prolong the service life of the battery 30.
  • the tire state detecting device further includes a first circuit board 81 and a second circuit board 85; the cover body 11 is detachably sealed and mounted outside the head 15, and the cover body 11 and the head 15 form a closed receiving space.
  • the acceleration sensor 58 and the control module 60 are mounted on the first circuit board 81.
  • the pressure sensor 55 and the temperature sensor 51 are mounted on the second circuit board 85.
  • the antenna module 20, the battery 30, the Bluetooth module 40, The first circuit board 81 and the second circuit board 85 are sequentially received in the closed receiving cavity from top to bottom.
  • the cover body 11 is a plastic case
  • the head 15 is a lightweight aluminum-copper alloy case, so that the device is not easily electrolyzed and rusted due to long-term contact with the vehicle valve.
  • the enclosed accommodating cavity is also filled with an epoxy resin 90 to achieve a high temperature resistant, high pressure resistant and acid and alkali resistant sealing environment, thereby prolonging the service life of the device and making the device more stable and reliable.
  • the periphery of the circuit board of the Bluetooth module 40 contacts the inner wall of the head 15, so that the effect of shielding the interference signal is better.
  • the antenna module 20 adopts an antenna on the PCB, which has the advantages of easy installation, non-deformation, stability and reliability.
  • the cover 11 and the head 15 are screwed to facilitate disassembly and installation.
  • the Bluetooth module 40 includes a Bluetooth 4.0 protocol chip U2 with low power consumption. It is conducive to energy saving and can be quickly connected to the receiving terminal.
  • control module 60 includes a low-power single-chip chip U1, which has ultra-low power consumption and sleep mode, which is beneficial to energy saving.
  • the utility model can reliably and safely transmit the tire status signal through the Bluetooth module 40 and the antenna module 20.
  • the device has good anti-interference, good sealing performance, long service life and stable and reliable operation.
  • the utility model adopts a low-power chip, thereby achieving the effect of energy saving and environmental protection.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Measuring Fluid Pressure (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)

Abstract

基于蓝牙的轮胎状态检测装置，其包括压力传感器（55）、温度传感器（51）、加速度传感器（58）、控制模块（60）、蓝牙模块（40）、无线模块（20）和电池（30）；压力传感器（55）和温度传感器（51）用于检测轮胎的压力和温度，并生成对应的轮胎状态信号；该控制模块（60）用于将该轮胎状态信号发送至蓝牙模块（40）；蓝牙模块（40）用于通过该天线模块（20）发射出该轮胎状态信号；电池（30）用于供电给轮胎状态检测装置；加速度传感器（58）用于检测汽车加速度，并发送对应的加速度检测信号；当控制模块（60）接收该加速度检测信号时启动该蓝牙模块（40）;当该控制模块（60）没接收到该加速度检测信号时，该控制模块（60）控制该蓝牙模块（40）处于省电工作状态。上述轮胎状态检测装置可通过蓝牙模块（40）和天线模块（20）可靠安全地发送轮胎状态信号，电池（30）使用寿命长，节能省电。

Description

基于蓝牙的轮胎状态检测装置 技术领域
本实用新型涉及一种基于蓝牙的轮胎状态检测装置。 背景技术
TPMS ( tire pressure monitoring system, 轮胎压力监测系统) , 用于对车辆轮胎的压力和温度等主要参数进行实时监测，以利于保证 轮胎的压力和温度等维持在标准范围内，起到减少爆胎、毁胎的概率， 降低油耗和车辆部件损坏率的作用。 TPMS包括装设在每一轮胎上的 多个高灵敏度的传感器模块， 在行车状态下实时监测轮胎的压力、 温 度等数据，并通过无线方式发射到 TPMS所包括的中央监控器， 经该 中央监控器显示出当前轮胎的压力和温度，同时与设定的标准压力值 及安全温度进行比对， 并针对不同的异常情况发出相应的声、 光报警 等。
现有的 TPMS 的轮胎状态检测装置一般通过射频方式发射检测 信号至中央监控器， 此种无线发射方式容易受电磁干扰，使得信号传 递不稳定， 容易丟失数据。 另外， 由于受到轮胎状态监测装置所使用 的传输协议的限制， 接收终端必须定制， 成本高， 且无法使用智能移 动设备如智能手机、 平板电脑等进行直接接收相关检测信号， 较为不 便。 实用新型内容
针对现有技术的不足，本实用新型的目的旨在于提供一种基于蓝 牙的轮胎状态检测装置， 其可安全可靠地传递数据， 可快捷筒便地直 接连接具备蓝牙功能的接收终端。
为实现上述目的， 本实用新型采用如下技术方案：
一种基于蓝牙的轮胎状态检测装置， 其包括压力传感器、 温度传 感器、 加速度传感器、 控制模块、 蓝牙模块、 天线模块和电池； 该压 力传感器和温度传感器用于检测轮胎的压力和温度，并生成对应的轮 胎状态信号； 该控制模块用于将该轮胎状态信号发送至该蓝牙模块； 该蓝牙模块用于通过该天线模块发射出该轮胎状态信号；电池用于供 电给轮胎状态监测装置； 该加速度传感器用于检测汽车加速度， 并发 送对应的加速度检测信号； 当该控制模块接收该加速度检测信号启动 该蓝牙模块， 以使得蓝牙模块处于传输状态； 当该控制模块没接收到 该加速度检测信号时， 该控制模块控制该蓝牙模块处于休眠状态。
进一步地， 轮胎状态检测装置还包括第一电路板、 第二电路板、 盖体和封头； 该盖体可拆卸地密封安装于该封头外， 该盖体和该封头 之间构成一封闭收容空腔；该加速度传感器和控制模块安装在该第一 电路板上， 该压力传感器和温度传感器安装在该第二电路板上， 该天 线模块、 电池、 蓝牙模块、 第一电路板和第二电路板自上而下依序收 容于该封闭收容空腔内。
进一步地， 该封头为铝铜铆合壳体。
进一步地， 该蓝牙模块的电路板周边接触该封头的内壁。 进一步地， 封闭收容空腔内还填充环氧树脂和橡胶。
进一步地， 该盖体和该封头之间螺纹连接。
进一步地， 该蓝牙模块包括蓝牙 4.0协议芯片。
进一步地， 该控制模块包括单片机芯片。
进一步地， 该盖体为塑胶壳体。
本实用新型的有益效果如下：
1、 本实用新型可通过蓝牙模块和天线模块可靠安全地发送轮胎 状态信号， 其采用低功耗蓝牙 4.0传输协议， 可快捷筒便地连接上接 收终端， 利于节能， 且接收终端无需厂家定制， 具备蓝牙模块的移动 电子设备如智能手机、 平板电脑等均可作为接收终端来显示轮胎状 态， 非常方便， 且成本低， 更具个性化。
2、 本实用新型通过加速度传感器检测车辆是否行驶， 当车辆行 驶时， 该控制模块启动该蓝牙模块进行传输数据， 当车辆没行驶时， 该控制模块关闭该蓝牙模块，以节能省电，大大延长电池的使用寿命。
3、 本装置抗干扰好， 且密封性佳， 使用寿命长， 工作稳定可靠。 该封头为铝铜铆合壳体，使得本装置与车气门嘴长久接触也不易电解 生锈。 该封闭收容空腔内还填充环氧树脂和橡胶， 以实现耐高低温、 耐高气压和耐酸碱的密封环境， 从而延长本装置的使用寿命， 使得本 装置工作更稳定可靠。 该蓝牙模块的电路板周边接触该封头的内壁， 以使得屏蔽干扰信号的效果更佳。 该天线模块采用 PCB上走天线， 具有便于安装， 不易变形， 稳定可靠的优点。
4、 本实用新型采用低功耗芯片， 可进一步实现节能省电。 该控 制模块管理各模块的供电状况， 可更有效地降低功耗。 附图说明
图 1 为本实用新型基于蓝牙的轮胎状态检测装置的较佳实施方 式的模块示意图。
图 2为图 1的轮胎状态检测装置的立体图。
图 3为图 1的轮胎状态检测装置的组合剖面图。
图 4为图 1的轮胎状态检测装置的压力传感器和温度传感器的电 路图。
图 5为图 1的轮胎状态检测装置的蓝牙模块的电路图。
图 6为图 1的轮胎状态检测装置的控制模块和加速度传感器的电 路图。 具体实施方式
下面将结合附图以及具体实施方式， 对本实用新型做进一步描 述：
请参见图 1至图 4, 本实用新型涉及一种基于蓝牙的轮胎状态检 测装置， 其较佳实施方式包括压力传感器 55、 温度传感器 51、 加速 度传感器 58、 控制模块 60、 蓝牙模块 40、 天线模块 20、 电池 30、 盖体 11和封头 15。
该压力传感器 55和温度传感器 51用于检测轮胎的压力和温度， 并生成对应的轮胎状态信号。 该控制模块 60用于将该轮胎状态信号 发送至该蓝牙模块 40。 该蓝牙模块 40用于通过该天线模块 20发射 出该轮胎状态信号。 电池 30用于供电给轮胎状态监测装置。 该加速 度传感器 58用于检测汽车加速度， 并发送对应的加速度检测信号。 当该控制模块 60接收该加速度检测信号时，该控制模块 60启动该蓝 牙模块 40, 以使得蓝牙模块 40处于传输状态。 当该控制模块 60没 接收到该加速度检测信号时，该控制模块 60控制该蓝牙模块 40处于 休眠状态， 以节能省电， 延长电池 30的使用寿命。
轮胎状态检测装置还包括第一电路板 81和第二电路板 85; 该盖 体 11可拆卸地密封安装于该封头 15外，该盖体 11和该封头 15之间 构成一封闭收容空腔；该加速度传感器 58和控制模块 60安装在该第 一电路板 81上， 该压力传感器 55和温度传感器 51安装在该第二电 路板 85上， 该天线模块 20、 电池 30、 蓝牙模块 40、 第一电路板 81 和第二电路板 85自上而下依序收容于该封闭收容空腔内。
本实施例中， 该盖体 11为塑胶壳体， 封头 15为轻质铝铜合金壳 体， 使得本装置与车气门嘴长久接触也不易电解生锈。 该封闭收容空 腔内还填充环氧树脂 90, 以实现耐高低温、 耐高气压和耐酸碱的密 封环境， 从而延长本装置的使用寿命， 使得本装置工作更稳定可靠。 该蓝牙模块 40的电路板周边接触该封头 15的内壁，以使得屏蔽干扰 信号的效果更佳。该天线模块 20采用 PCB上走天线，具有便于安装， 不易变形， 稳定可靠的优点。 该盖体 11和该封头 15之间螺纹连接， 方便拆卸安装。
请参见图 5 ,该蓝牙模块 40包括低功耗的蓝牙 4.0协议芯片 U2, 其有利于节能， 可快捷筒便地连接上接收终端。
请参见图 6, 该控制模块 60包括低功耗的单片机芯片 U1 , 其具 备超低功耗， 休眠模式等特点， 利于节能。
本实用新型可通过蓝牙模块 40和天线模块 20可靠安全地发送轮 胎状态信号。 本装置抗干扰好， 且密封性佳， 使用寿命长， 工作稳定 可靠。另外，本实用新型采用低功耗芯片，进而实现节能环保的效果。
对于本领域的技术人员来说，可根据以上描述的技术方案以及构 思， 做出其它各种相应的改变以及变形， 而所有的这些改变以及变形 都应该属于本实用新型权利要求的保护范围之内。

Claims

权 利 要 求 书
1. 一种基于蓝牙的轮胎状态检测装置， 其特征在于： 其包括压力传 感器、 温度传感器、 加速度传感器、 控制模块、 蓝牙模块、 天线 模块和电池； 该压力传感器和温度传感器用于检测轮胎的压力和 温度， 并生成对应的轮胎状态信号； 该控制模块用于将该轮胎状 态信号发送至该蓝牙模块； 该蓝牙模块用于通过该天线模块发射 出该轮胎状态信号； 电池用于供电给轮胎状态监测装置； 该加速 度传感器用于检测汽车加速度， 并发送对应的加速度检测信号； 当该控制模块接收到该加速度检测信号时， 该控制模块启动该蓝 牙模块； 当该控制模块没接收到该加速度检测信号时， 该控制模 块控制该蓝牙模块处于休眠状态。
2. 如权利要求 1所述的基于蓝牙的轮胎状态检测装置，其特征在于： 轮胎状态检测装置还包括第一电路板、 第二电路板、盖体和封头； 该盖体可拆卸地密封安装于该封头外， 该盖体和该封头之间构成 一封闭收容空腔； 该加速度传感器和控制模块安装在该第一电路 板上， 该压力传感器和温度传感器安装在该第二电路板上， 该天 线模块、 电池、 蓝牙模块、 第一电路板和第二电路板自上而下依 序收容于该封闭收容空腔内。
3. 如权利要求 2所述的基于蓝牙的轮胎状态检测装置，其特征在于： 该封头为铝铜铆合壳体。
4. 如权利要求 3所述的基于蓝牙的轮胎状态检测装置，其特征在于： 该蓝牙模块的电路板周边接触该封头的内壁。
5. 如权利要求 2所述的基于蓝牙的轮胎状态检测装置，其特征在于： 封闭收容空腔内还填充环氧树脂和橡胶。
6. 如权利要求 2所述的基于蓝牙的轮胎状态检测装置，其特征在于： 该盖体和该封头之间螺纹连接。
7. 如权利要求 1所述的基于蓝牙的轮胎状态检测装置，其特征在于： 该蓝牙模块包括蓝牙 4.0协议芯片。
8. 如权利要求 1所述的基于蓝牙的轮胎状态检测装置，其特征在于： 该控制模块包括单片机芯片。
9. 如权利要求 1所述的基于蓝牙的轮胎状态检测装置，其特征在于： 该盖体为塑胶壳体。
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