WO2017113464A1 - Capteur de pression d'air sans fil pour réseau zigbee rechargeable sans fil - Google Patents

Capteur de pression d'air sans fil pour réseau zigbee rechargeable sans fil Download PDF

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Publication number
WO2017113464A1
WO2017113464A1 PCT/CN2016/072323 CN2016072323W WO2017113464A1 WO 2017113464 A1 WO2017113464 A1 WO 2017113464A1 CN 2016072323 W CN2016072323 W CN 2016072323W WO 2017113464 A1 WO2017113464 A1 WO 2017113464A1
Authority
WO
WIPO (PCT)
Prior art keywords
air pressure
pressure sensor
wireless
zigbee
circuit
Prior art date
Application number
PCT/CN2016/072323
Other languages
English (en)
Chinese (zh)
Inventor
陈健
王介阳
周琦
Original Assignee
广东工业大学
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 广东工业大学 filed Critical 广东工业大学
Publication of WO2017113464A1 publication Critical patent/WO2017113464A1/fr

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L11/00—Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group G01L7/00 or G01L9/00
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
    • G01L19/08—Means for indicating or recording, e.g. for remote indication
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
    • G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/0031—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using battery or load disconnect circuits

Definitions

  • the invention relates to a wireless charging ZigBee network wireless air pressure sensor, belonging to the ZigBee network wireless air pressure sensor innovation technology.
  • Conventional air pressure measuring devices generally use mechanical barometers for direct measurement or single sensor measurements. Data acquisition is done by manual field readings. Mechanical barometer measurements are simple, but require a lot of labor and poor real-time performance in the data acquisition process. Human error is also prone to occur; when there is a large amount of air pressure on the site (such as a large number of airbags in the airbag construction technology), it takes a lot of time to read all the air pressure data.
  • the wireless air pressure sensor network based on the ZigBee network mode can measure the air pressure of multiple measuring points and collect the air pressure data of each air pressure point through the ZigBee coordinator, and then display it through the PC interface, or through the network protocol converter. Send it to the cloud and view barometric data on your phone, tablet, and more.
  • ZigBee technology is an emerging wireless network technology with close proximity, low complexity, low power consumption, low data rate and low cost. ZigBee technology can give full play to its advantages in situations where data collection or monitoring is required, network data is small, equipment costs are low, data transmission security is high, equipment size is small, terrain is complex, and network coverage is required. . And the ZigBee Alliance has developed a globally open standard for designing reliable, cost-effective, low-power wireless network monitoring and control products.
  • the wireless sensor network composed of ZigBee technology is a medium- and short-range, low-rate wireless sensor network.
  • Low RF transmission cost each node requires only a small amount of energy; low power consumption, suitable for long-term battery power supply; can achieve point-to-multipoint, two-point peer-to-peer communication; with rapid network automatic configuration, automatic recovery function;
  • the sensors can coordinate with each other to achieve data communication. It can be applied to industrial control, modern agricultural monitoring, digital home, intelligent building monitoring, environmental monitoring and other fields.
  • the air pressure sensor based on the ZigBee network is driven by a lithium ion battery. Due to the limited battery capacity, the primary charging sensor can only work for a limited time. Therefore, due to the poor battery life of the existing sensor at the use site, there is a problem that the sensor needs to be frequently disassembled to replace the rechargeable battery. With the continuous development and maturity of wireless charging technology, the problem of limited battery life of traditional industrial detection technology sensor node power supply is also solved.
  • the wireless charging technology means that a device having a battery is charged by wirelessly acquiring electric power such as electromagnetic induction.
  • wireless charging technology in order to solve the problem that the existing battery technology can not keep up with the development of electronic products, so that users get relatively convenient and fast charging needs;
  • the existing non-uniform electronic product power interface can be unified To solve the problem of versatility of charging equipment;
  • wireless charging does not require an external charging interface, thereby solving the problem of water immersion in electronic products, and also preventing dust from entering electronic products.
  • the invention solves the trouble that the battery life of the sensor is poor due to poor battery life and the need to frequently disassemble the sensor to replace the rechargeable battery, and realizes the function of charging the air pressure sensor on the spot by the wireless charging transmitter, thereby greatly improving the continuous use time of the sensor.
  • the wirelessly chargeable ZigBee network wireless air pressure sensor of the present invention comprises a ZigBee wireless communication module, an analog air pressure sensor, a wireless charging circuit and an induction coil, wherein the analog air pressure sensor detects the air pressure change to generate an analog output signal.
  • the signal output by the ZigBee wireless communication module is sent to the ZigBee wireless network via the antenna, the wireless charging circuit transmits energy through the induction coil and the Qi wireless charging transmitter, and the wireless charging circuit is connected with the lithium battery, and the lithium battery is passed through
  • the voltage circuit supplies power to the analog air pressure sensor, and the boost circuit supplies power to the ZigBee wireless communication module through the power conversion circuit.
  • the technical solution adopted by the present invention compares with other technologies, and the present invention uses a Qi wireless charging transmitter to charge the sensor in the field.
  • the invention can effectively solve the sensor in addition to outdoor use.
  • the terminal node needs to constantly change the battery, and can ensure that the node does not lose power for a long time, and solves the problem that the sensor uses the site due to poor battery life and needs to frequently disassemble the sensor to replace the rechargeable battery, thereby realizing the charging of the air pressure sensor on site.
  • the function of charging the transmitter greatly improves the continuous use time of the sensor; in addition, the invention can timely reflect the problem and the cause through the indicator light regardless of the failure of the battery or the charging power source, and can protect the central control chip from being damaged by the high voltage current.
  • the sensor of the invention can be applied to the airbag air pressure monitoring, on-site industrial control, tire pressure monitoring, environmental monitoring, medical treatment and the like in ship launching construction.
  • Figure 1 is a schematic block diagram of the present invention.
  • the wirelessly charged ZigBee network wireless air pressure sensor is characterized by comprising a ZigBee wireless communication module, an analog air pressure sensor, a wireless charging circuit and an induction coil, wherein the analog air pressure sensor detects the air pressure change.
  • the analog output signal is transmitted to the ZigBee wireless communication module, and the signal output by the ZigBee wireless communication module is sent to the ZigBee wireless network via the antenna, the wireless charging circuit transmits energy through the induction coil and the Qi wireless charging transmitter, and the wireless charging circuit is connected to the lithium battery.
  • the lithium battery supplies power to the analog air pressure sensor through the boost circuit, and the boost circuit supplies power to the ZigBee wireless communication module through the power conversion circuit.
  • the charging control circuit includes a charging control chip, and the charging control chip transmits energy through the induction coil and the Qi wireless charging transmitter.
  • the ZigBee wireless communication module includes a radio frequency front end amplifying circuit and a radio frequency communication circuit
  • the radio frequency communication circuit includes a microprocessor and an RF transceiver
  • the analog air pressure sensor detects the air pressure change to generate an analog output signal through the A/D conversion port.
  • the signal output by the microprocessor is sent by the RF transceiver and the RF amplifying circuit to the ZigBee wireless network via the antenna.
  • the boosting circuit supplies power to the radio frequency communication circuit and the radio frequency front end amplifying circuit through the power conversion circuit.
  • the microprocessor is connected to the indication module.
  • the indication module includes a power status indicator, a network status indicator, and an operation status indicator.
  • the wireless charging circuit realizes the transmission of electric energy through the induction coil and the Qi wireless charging transmitter through a wireless manner.
  • the induction coil is an induction coil of the type 760308101303 manufactured by Würth, Germany.
  • the above Qi wireless charging transmitter is a Qi standard using the Wireless Charging Alliance (WPC).
  • the working principle of the invention is as follows: as shown in FIG. 1 , when the lithium battery is low in power, the battery is charged by using the Qi wireless charging transmitter.
  • the wireless charging transmitter is connected to the external power source and connected through the Würth induction coil.
  • the charging control chip determines whether the lithium battery is charged after the judgment of the charging control chip. If the voltage state provided by the adapter meets the charging standard, the charging control chip charges the lithium battery according to the set charging current. After the lithium battery is full, the charging control chip The charging mode is automatically terminated.
  • the system enters the normal working process after the lithium battery is turned on, the voltage of 3.7V is changed to the standard 5V voltage by the booster circuit. After a voltage of 5V is passed through the 3.3V voltage conversion circuit, the voltage is supplied to the RF communication circuit and the RF.
  • the front-end amplifier circuit works normally; the other 5V voltage is used for the analog air pressure sensor to work normally. .

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

L'invention concerne un capteur de pression d'air sans fil pour réseau ZigBee rechargeable sans fil, comprenant un module de communication sans fil ZigBee, un capteur de pression d'air analogique, un circuit de charge sans fil et une bobine d'induction, le capteur de pression d'air analogique détectant une variation de la pression de l'air, générant un signal de sortie analogique, et transmettant le signal de sortie analogique au module de communication sans fil ZigBee ; le signal émis par le module de communication sans fil ZigBee est envoyé vers un réseau sans fil ZigBee au moyen d'une antenne ; le circuit de charge sans fil transfère de l'énergie à un émetteur de charge sans fil Qi au moyen de la bobine d'induction ; le circuit de charge sans fil est connecté à une batterie au lithium ; la batterie au lithium alimente le capteur de pression d'air analogique au moyen d'un circuit d'amplification ; le circuit d'amplification alimente le module de communication sans fil ZigBee au moyen d'un circuit de conversion d'alimentation électrique. Le capteur de pression d'air pallie les défauts associés au fait qu'un capteur doit être démonté et remonté fréquemment pour changer une batterie rechargeable sur site en raison de la faible durée de vie de la batterie, il réalise une charge sans fil du capteur de pression d'air sur site et prolonge considérablement la durée d'utilisation continue sous tension du capteur.
PCT/CN2016/072323 2015-12-29 2016-01-27 Capteur de pression d'air sans fil pour réseau zigbee rechargeable sans fil WO2017113464A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201511005168.2 2015-12-29
CN201511005168.2A CN105527050A (zh) 2015-12-29 2015-12-29 可无线充电的ZigBee网络无线气压传感器

Publications (1)

Publication Number Publication Date
WO2017113464A1 true WO2017113464A1 (fr) 2017-07-06

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Application Number Title Priority Date Filing Date
PCT/CN2016/072323 WO2017113464A1 (fr) 2015-12-29 2016-01-27 Capteur de pression d'air sans fil pour réseau zigbee rechargeable sans fil

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CN (1) CN105527050A (fr)
WO (1) WO2017113464A1 (fr)

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CN106275333B (zh) * 2016-08-19 2018-07-03 周漪楠 一种预防潜水艇断崖式急速下沉的装置
CN111800515A (zh) * 2017-12-06 2020-10-20 上海麦腾物联网技术有限公司 一种物联网嵌入式设备的无线通讯管理方法
CN108365642A (zh) * 2017-12-26 2018-08-03 中国航发四川燃气涡轮研究院 一种用于旋转件测试的遥测系统供电装置及控制方法
CN109186587A (zh) * 2018-09-14 2019-01-11 中国水利水电科学研究院 一种比重可变和轨迹自计的卵石推移质运动研究装置
CN109443628A (zh) * 2018-12-20 2019-03-08 中国工程物理研究院应用电子学研究所 一种高功率微波源强电磁环境气压测量装置
CN213183009U (zh) 2020-08-17 2021-05-11 开利公司 可多方式充电的烟雾探测器以及包括其的消防系统

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