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WO2017113464A1 - Wirelessly rechargeable zigbee network wireless air pressure sensor - Google Patents

Wirelessly rechargeable zigbee network wireless air pressure sensor 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
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WO
WIPO (PCT)
Prior art keywords
air pressure
pressure sensor
wireless
zigbee
circuit
Prior art date
Application number
PCT/CN2016/072323
Other languages
French (fr)
Chinese (zh)
Inventor
陈健
王介阳
周琦
Original Assignee
广东工业大学
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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/en

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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. .

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

Abstract

A wirelessly rechargeable ZigBee network wireless air pressure sensor, 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 a change in the air pressure, generates an analog output signal, and transmits the analog output signal to the ZigBee wireless communication module; the signal output by the ZigBee wireless communication module is sent to a ZigBee wireless network by means of an antenna; the wireless charging circuit transfers energy to a Qi wireless charging transmitter by means of the induction coil; the wireless charging circuit is connected to a lithium battery; the lithium battery supplies power to the analog air pressure sensor by means of a boost circuit; the boost circuit supplies power to the ZigBee wireless communication module by means of a power supply conversion circuit. The air pressure sensor overcomes the defects that a sensor needs to be disassembled and assembled frequently for changing a rechargeable battery on site due to short battery life, achieves wireless charging of the air pressure sensor on site, and greatly prolongs the live-line continuous use time of the sensor.

Description

可无线充电的ZigBee网络无线气压传感器  Wireless charging ZigBee network wireless air pressure sensor
技术领域Technical field
本发明涉及一种可无线充电的ZigBee网络无线气压传感器，属于ZigBee网络无线气压传感器的创新技术。 The invention relates to a wireless charging ZigBee network wireless air pressure sensor, belonging to the ZigBee network wireless air pressure sensor innovation technology.
背景技术 Background technique
传统的气压测量装置一般采用机械式气压表直接测量或者单一的传感器测量，由人工现场读数完成数据采集，机械式气压表测量虽然简单，但需要花费大量劳动力且实时性较差，在数据采集过程中还容易出现人为错误；当现场有大量的气压（如气囊船舶下水施工技术中有大量的气囊）需要测量时，每读完一次所有气压数据需要大量的时间。而基于ZigBee网络模式的无线气压传感器网络则可测量多个测量点的气压并通过ZigBee协调器将各气压点的气压数据收集在一起，再通过PC界面显示，也可以通过网络协议转换器将其送入云端并通过手机、平板电脑等查看气压数据。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技术是一种新兴的近距离、低复杂度、低功耗、低数据速率、低成本的无线网络技术。在要求数据采集或监控的网点多、传输数据量不大但设备成本低、数据传输安全性高、设备体积小、地形复杂需要较大的网络覆盖等条件下，ZigBee技术可以充分发挥它的优势。而且ZigBee联盟制定了一个全球开放的标准，适用于设计可靠的、成本效益型、低功耗无线网络监测及其控制产品。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.
ZigBee技术组成的无线传感网络为中短距离、低速率无线传感器网络。射频传输成本低，各节点只需要很少的能量；功耗低，适于电池长期供电；可实现一点对多点，两点间对等通信；具有快速组网自动配置、自动恢复功能；任意个传感器之间可相互协调实现数据通信。可适用于工业控制、现代化农业监控、数字家庭、智能楼宇监控、环境监测等领域。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.
基于ZigBee网络的气压传感器由锂离子电池驱动。由于电池容量有限，一次充电传感器只能工作有限的时间，故现有传感器在使用现场由于电池续航能力差，存在需频繁拆装传感器以更换充电电池的麻烦。随着无线充电技术的不断发展和日趋成熟，传统工业检测技术传感器节点电源的续航能力有限这一问题也迎刃而解。无线充电技术是指具有电池的装置通过电磁感应等无线方式取得电力而进行充电。无线充电技术的出现，一是为了解决在现有电池技术跟不上电子产品发展的情况下，使用户得到相对方便快捷的充电需求；二是可以将现有不统一的电子产品电源接口进行统一，解决充电设备通用性的问题；三是无线充电不需要外接充电接口，从而解决电子产品浸水问题，还可以防止灰尘进入电子产品。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. The emergence of 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; Second, the existing non-uniform electronic product power interface can be unified To solve the problem of versatility of charging equipment; third, 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.
发明内容Summary of the invention
本发明的目的在于提供一种可无线充电的ZigBee网络模式的无线气压传感器。本发明解决了传感器使用现场由于电池续航能力差、需频繁拆装传感器以更换充电电池的麻烦，实现了气压传感器现场通过无线充电发射器充电的功能，大幅提高了传感器带电连续使用时间。It is an object of the present invention to provide a wireless air pressure sensor in a wirelessly chargeable ZigBee network mode. 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.
本发明的技术方案是：本发明的可无线充电的ZigBee网络无线气压传感器，包括有ZigBee无线通讯模块、模拟气压传感器、无线充电电路及感应线圈，其中模拟气压传感器检测到气压变化产生模拟输出信号传输至ZigBee无线通讯模块，ZigBee无线通讯模块输出的信号经天线发送至ZigBee无线网络，无线充电电路通过感应线圈与Qi无线充电发射器传递能量，且无线充电电路与锂电池连接，锂电池通过升压电路为模拟气压传感器供电，且升压电路通过电源转换电路为ZigBee无线通讯模块供电。The technical solution of the present invention is: 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. Transmitted to the ZigBee wireless communication module, 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.
本发明采用的技术方案与其他技术相比，本发明在现场使用Qi无线充电发射器对传感器充电，除了传感器有防水防尘的优点，能够在室外使用之外，本发明还有效地解决了传感器终端节点需要不断更换电池的麻烦，能够确保节点长时间工作不掉电，解决了传感器使用现场由于电池续航能力差、需频繁拆装传感器以更换充电电池的麻烦，实现了气压传感器现场通过无线充电发射器充电的功能，大幅提高了传感器带电连续使用时间；此外，本发明无论电池或是充电电源出现故障，都能通过指示灯及时反映问题及原因，能保护中央控制芯片不被高电压电流损坏。本发明传感器可应用于船舶下水施工用气囊气压监测、现场工业控制、轮胎压力监测、环境监测、医疗等领域。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. In addition to the advantages of waterproof and dustproof sensors, 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.
附图说明DRAWINGS
图1为本发明的原理框图。Figure 1 is a schematic block diagram of the present invention.
具体实施方式detailed description
实施例：Example:
本发明的原理框图如图1所示，可无线充电的ZigBee网络无线气压传感器，其特征在于包括有ZigBee无线通讯模块、模拟气压传感器、无线充电电路及感应线圈，其中模拟气压传感器检测到气压变化产生模拟输出信号传输至ZigBee无线通讯模块，ZigBee无线通讯模块输出的信号经天线发送至ZigBee无线网络，无线充电电路通过感应线圈与Qi无线充电发射器传递能量，且无线充电电路与锂电池连接，锂电池通过升压电路为模拟气压传感器供电，且升压电路通过电源转换电路为ZigBee无线通讯模块供电。The principle block diagram of the present invention is shown in FIG. 1. 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.
本实施例中，上述充电控制电路中包括有充电控制芯片，充电控制芯片通过感应线圈和Qi无线充电发射器传递能量。In this embodiment, 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.
本实施例中，上述ZigBee无线通讯模块包括射频前端放大电路及射频通信电路，射频通信电路包括有微处理器及RF收发器，模拟气压传感器检测到气压变化产生模拟输出信号通过A/D转换端口传输至微处理器，微处理器输出的信号由RF收发器及射频放大电路经天线发送至ZigBee无线网络。In this embodiment, the ZigBee wireless communication module includes a radio frequency front end amplifying circuit and a radio frequency communication circuit, and the radio frequency communication circuit includes a microprocessor and an RF transceiver, and the analog air pressure sensor detects the air pressure change to generate an analog output signal through the A/D conversion port. Transmitted to the microprocessor, 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.
本实施例中，上述升压电路通过电源转换电路为射频通信电路和射频前端放大电路供电。In this embodiment, the boosting circuit supplies power to the radio frequency communication circuit and the radio frequency front end amplifying circuit through the power conversion circuit.
本实施例中，上述微处理器连接有指示模块。In this embodiment, the microprocessor is connected to the indication module.
本实施例中，上述指示模块包括有电源状态指示灯、网络状态指示灯、运行状态指示灯。In this embodiment, the indication module includes a power status indicator, a network status indicator, and an operation status indicator.
本实施例中，上述无线充电电路通过感应线圈与Qi无线充电发射器是通过无线的方式实现电能的传递。In this embodiment, the wireless charging circuit realizes the transmission of electric energy through the induction coil and the Qi wireless charging transmitter through a wireless manner.
本实施例中，上述感应线圈是由德国伍尔特公司生产的型号为760308101303的感应线圈。上述Qi无线充电发射器是采用无线充电联盟（WPC）的Qi标准。In this embodiment, 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).
本发明的工作原理是：如图1所示，当锂电池电量不足时，使用Qi无线充电发射器对电池进行充电，充电时，无线充电发射器接通外部电源，通过伍尔特感应线圈连接充电控制芯片，充电控制芯片经过判断后决定是否对锂电池充电，若适配器提供的电压状态符合充电标准，充电控制芯片向锂电池按设定的充电电流进行充电，锂电池充满之后，充电控制芯片自动终止充电模式。当系统进入正常工作过程，接通锂电池后，先经升压电路将3.7V电压变为标准5V电压，一路5V电压经3.3V电压转换电路后将为3.3V电压供电至射频通信电路和射频前端放大电路正常工作；另一路5V电压供模拟气压传感器正常工作 。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. When charging, 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. When 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. .
上面结合附图原理框图对本发明的实施方式作了详细说明，但是本发明并不限于上述实施例，在本领域的普通技术人员所具备的知识范围内，还可以对其做出种种变化。The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the embodiments described above, and various modifications may be made within the scope of the knowledge of those skilled in the art.

Claims (9)

  1. 一种可无线充电的ZigBee网络无线气压传感器，其特征在于包括有ZigBee无线通讯模块、模拟气压传感器、无线充电电路及感应线圈，其中模拟气压传感器检测到气压变化产生模拟输出信号传输至ZigBee无线通讯模块，ZigBee无线通讯模块输出的信号经天线发送至ZigBee无线网络，无线充电电路通过感应线圈与Qi无线充电发射器传递能量，且无线充电电路与锂电池连接，锂电池通过升压电路为模拟气压传感器供电，且升压电路通过电源转换电路为ZigBee无线通讯模块供电。 A wirelessly chargeable ZigBee network wireless air pressure sensor, 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 a change in air pressure to generate an analog output signal for transmission to a ZigBee wireless communication Module, 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 passes the boosting circuit to simulate the air pressure. The sensor is powered, and the boost circuit supplies power to the ZigBee wireless communication module through the power conversion circuit.
  2. 根据权利要求1所述的可无线充电的ZigBee网络无线气压传感器，其特征在于上述充电控制电路中包括有充电控制芯片，充电控制芯片通过感应线圈和Qi无线充电发射器传递能量。The wirelessly chargeable ZigBee network wireless air pressure sensor according to claim 1, wherein the charging control circuit comprises a charging control chip, and the charging control chip transmits energy through the induction coil and the Qi wireless charging transmitter.
  3. 根据权利要求1所述的可无线充电的ZigBee网络无线气压传感器，其特征在于上述ZigBee无线通讯模块包括射频前端放大电路及射频通信电路，射频通信电路包括有微处理器及RF收发器，模拟气压传感器检测到气压变化产生模拟输出信号通过A/D转换端口传输至微处理器，微处理器输出的信号由RF收发器及射频放大电路经天线发送至ZigBee无线网络。The wirelessly chargeable ZigBee network wireless air pressure sensor according to claim 1, wherein the ZigBee wireless communication module comprises a radio frequency front end amplifying circuit and a radio frequency communication circuit, and the radio frequency communication circuit comprises a microprocessor and an RF transceiver, and the analog air pressure is The sensor detects the change of the air pressure and generates an analog output signal to the microprocessor 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.
  4. 根据权利要求3所述的可无线充电的ZigBee网络无线气压传感器，其特征在于上述升压电路通过电源转换电路为射频通信电路和射频前端放大电路供电。The wirelessly chargeable ZigBee network wireless air pressure sensor according to claim 3, wherein the boosting circuit supplies power to the radio frequency communication circuit and the radio frequency front end amplifying circuit through the power conversion circuit.
  5. 根据权利要求3所述的可无线充电的ZigBee网络无线气压传感器，其特征在于上述微处理器连接有指示模块。The wirelessly chargeable ZigBee network wireless air pressure sensor of claim 3 wherein said microprocessor is coupled to an indicator module.
  6. 根据权利要求5所述的可无线充电的ZigBee网络无线气压传感器，其特征在于上述指示模块包括有电源状态指示灯、网络状态指示灯、运行状态指示灯。The wirelessly chargeable ZigBee network wireless air pressure sensor according to claim 5, wherein the indication module comprises a power status indicator, a network status indicator, and an operation status indicator.
  7. 根据权利要求1至6任一项所述的可无线充电的ZigBee网络无线气压传感器，其特征在于上述无线充电电路通过感应线圈与Qi无线充电发射器是通过无线的方式实现电能的传递。The wirelessly chargeable ZigBee network wireless air pressure sensor according to any one of claims 1 to 6, wherein the wireless charging circuit realizes the transmission of electric energy by means of an induction coil and a Qi wireless charging transmitter.
  8. 根据权利要求7所述的可无线充电的ZigBee网络无线气压传感器，其特征在于上述感应线圈是型号为760308101303的感应线圈。The wirelessly chargeable ZigBee network wireless air pressure sensor according to claim 7, wherein said induction coil is an induction coil of the type 760308101303.
  9. 根据权利要求7所述的可无线充电的ZigBee网络无线气压传感器，其特征在于上述Qi无线充电发射器是采用无线充电联盟的Qi标准。The wirelessly chargeable ZigBee network wireless air pressure sensor according to claim 7, wherein said Qi wireless charging transmitter is a Qi standard using a wireless charging alliance.
PCT/CN2016/072323 2015-12-29 2016-01-27 Wirelessly rechargeable zigbee network wireless air pressure sensor WO2017113464A1 (en)

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