CN108494414B - Ultra-low power consumption multimode wireless module of internet of things - Google Patents

Ultra-low power consumption multimode wireless module of internet of things Download PDF

Info

Publication number
CN108494414B
CN108494414B CN201810443065.1A CN201810443065A CN108494414B CN 108494414 B CN108494414 B CN 108494414B CN 201810443065 A CN201810443065 A CN 201810443065A CN 108494414 B CN108494414 B CN 108494414B
Authority
CN
China
Prior art keywords
module
control unit
mcu control
radio frequency
ora
Prior art date
Legal status (The legal status 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 status listed.)
Active
Application number
CN201810443065.1A
Other languages
Chinese (zh)
Other versions
CN108494414A (en
Inventor
张鹏
杨广学
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuhan Tongfu LianWu Technology Co.,Ltd.
Original Assignee
Wuhan Zhongdian Iot Technology Co ltd
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 Wuhan Zhongdian Iot Technology Co ltd filed Critical Wuhan Zhongdian Iot Technology Co ltd
Priority to CN201810443065.1A priority Critical patent/CN108494414B/en
Publication of CN108494414A publication Critical patent/CN108494414A/en
Application granted granted Critical
Publication of CN108494414B publication Critical patent/CN108494414B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/005—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
    • H04B1/0064—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with separate antennas for the more than one band
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/005—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
    • H04B1/0053—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band
    • H04B1/006—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band using switches for selecting the desired band
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/401—Circuits for selecting or indicating operating mode
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0404—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas the mobile station comprising multiple antennas, e.g. to provide uplink diversity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The invention discloses an ultra-low power consumption multimode wireless module of internet of things, wherein a GPRS module is connected with an MCU control unit through a UART, the MCU control unit controls the GPRS module through an AT instruction or an instruction set of the GPRS module, the MCU control unit controls the GPRS module through GPIO for power-off, power-off and dormancy of the GPRS module, L ORA module is connected with the MCU control unit through the UART, the MCU control unit controls a L ORA module through the AT instruction or according to a support instruction table of a L ORA module, the NB-IOT module is connected with the MCU control unit through the UART or IIC, an EMTC module is connected with the MCU control unit through a PCM interface and an SPI interface, and a Sigfox module is connected with the MCU control unit through the UART.

Description

Ultra-low power consumption multimode wireless module of internet of things
Technical Field
The invention relates to the field of Internet of things. More specifically, the invention relates to an ultra-low power consumption multimode wireless module for internet of things.
Background
The networking mode of the Internet of things is mostly star type networking or ad hoc networking, usually a node is composed of a sensor or a terminal and a wireless transmission module, the core of the networking is that the wireless transmission module is connected with a gateway or an access point, and the wireless transmission module is connected with a server or an ad hoc networking mode through the gateway or the access point, at present, the mainstream Internet of things module on the market is mostly a single mode L ORA or NB-IOT or GPRS module, L ORA module is usually accessed into an L ORAWAN network or a private network composed of L ORA, but the disadvantage is that the gateway and the server must be redeployed for use.
Disclosure of Invention
The invention aims to provide an ultra-low power consumption multimode Internet of things wireless module, which forms a multimode Internet of things module and can meet various application scenes.
To achieve these objects and other advantages in accordance with the present invention, there is provided an ultra low power consumption multi-mode internet of things wireless module, including an MCU control unit, a GPRS module, an NB-IOT module, an EMTC module, an L ORA module, and a Sigfox module;
the GPRS module is connected with the MCU control unit through a UART, and the MCU control unit carries out control, command or data interaction on the GPRS module through AT instructions or instruction sets of the GPRS module; the MCU control unit passes GPIO for power-off, power-off and dormancy of the GPRS module;
l ORA module is connected with the MCU control unit through UART, the MCU control unit controls, commands or data interaction to the L ORA module through AT command or according to the support command table of L ORA module;
the NB-IOT module is connected with the MCU control unit through UART or IIC;
the EMTC module is connected with the MCU through a PCM interface and an SPI interface;
and the Sigfox module is connected with the MCU control unit through a UART.
Preferably, the device further comprises a SIM card and a buffer switch; the SIM card is connected with the buffer switch through an SIM bus, the EMTC module, the GPRS module and the NB-IOT module are all connected with the buffer switch, and the MCU control unit controls the buffer switch to be communicated with any one of the EMTC module, the GPRS module and the NB-IOT module in a switching mode.
Preferably, the method further comprises the following steps: a first antenna and a first radio frequency switch; the first antenna is connected with the first radio frequency switch, the EMTC module, the GPRS module and the NB-IOT module are all connected with the first radio frequency switch, the first radio frequency switch is set to be four-in and one-out, and the MCU control unit controls the first radio frequency switch to be communicated with any one of the EMTC module, the GPRS module and the NB-IOT module in a switching mode.
Preferably, the frequency band of the first antenna is 800-1000MHz frequency band.
Preferably, when the L ORA module and the Sigfox module adopt high frequency bands, the high frequency bands are 800-1000MHz, the L ORA module and the Sigfox module are connected with the first radio frequency switch through microstrip lines or coaxial cables, and the MCU control unit controls the first radio frequency switch to be in switching communication with any one of the EMTC module, the GPRS module, the NB-IOT module, the L ORA module and the Sigfox module.
Preferably, when the L ORA module and the Sigfox module adopt a low frequency band, the low frequency band is 429-510MHz, and the device further includes a second antenna and a second radio frequency switch;
the second radio frequency switch is connected with the first radio frequency switch in series, the L ORA module and the Sigfox module are both connected with the second radio frequency switch, the second antenna is connected with the second radio frequency switch, and the second radio frequency switch is set to be two-in and two-out.
Preferably, the interface unit of the MCU control unit includes: SPI interface, GPIO interface, UART interface, I2C interface, USB interface.
The invention at least has the following beneficial effects that a novel hardware architecture is adopted to combine L ORA, NB-IOT, EMTC and GPRS together to form a multi-mode Internet of things module, so that various application scenes can be met, various network modes can be adapted to, and the smooth evolution supports future application requirements.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
FIG. 1 is a schematic connection diagram of an ultra-low power multimode IOT wireless module according to the invention;
figure 2 is a schematic diagram of the connections between the SIM card and the buffer and the various modules according to one embodiment of the present invention;
fig. 3 is a schematic diagram of connection of an antenna according to an embodiment of the present invention.
Detailed Description
The present invention is further described in detail below with reference to the attached drawings so that those skilled in the art can implement the invention by referring to the description text.
As shown in fig. 1 to 3, the ultra-low power consumption multi-mode internet of things wireless module provided by the invention comprises an MCU control unit, a GPRS module, an NB-IOT module, an EMTC module, an L ORA module, and a Sigfox module;
the GPRS module is connected with the MCU control unit through a UART, and the MCU control unit carries out control, command or data interaction on the GPRS module through AT instructions or instruction sets of the GPRS module; the MCU control unit passes GPIO for power-off, power-off and dormancy of the GPRS module;
l ORA module is connected with the MCU control unit through UART, the MCU control unit controls, commands or data interaction to the L ORA module through AT command or according to the support command table of L ORA module;
the NB-IOT module is connected with the MCU control unit through UART or IIC;
the EMTC module is connected with the MCU through a PCM interface and an SPI interface;
and the Sigfox module is connected with the MCU control unit through a UART.
In the technical scheme, the MCU control unit serves as a master controller of the whole module, manages and controls the working state of the whole module, exchanges data between the sensor and the wireless module, and is connected with the sensor or the data interface of a client in a mode of an SPI (serial peripheral interface), a GPIO (general purpose input/output) or a UART (universal asynchronous receiver/transmitter), an I2C or a USB (universal serial bus) or other through holes, stamp holes, connectors or patch pads, and the like, in most of the time when no data is transmitted or received, the whole module controls other GPRS, L ORA, EMTC and NB-IOT modules to enter a standby sleep or power-off mode, specifically, the state of each module is determined depending on the network condition used by the client, if the EMTC and GPRS modules are not used AT all, the power supply loop of the module can be completely closed, other used NB-IOT modules or L ORA modules are in the standby state, if data is transmitted or received, the MCU control unit wakes up the MCU control module through GPIO signals between the MCU control unit and the SIM or the SIM is connected with the MCU control module in series with AT least one antenna according to a certain baud rate, so that the antenna module and the radio frequency band can be connected with AT least one antenna module to realize that the same high-frequency communication protocol is connected with the EMTC antenna, and the same antenna, and the antenna module, so that the antenna module, the antenna module can be connected with the antenna module, and the antenna module can be connected with the antenna module in a special frequency band of the antenna module, and the antenna module.
The GPRS module is used as a data mode of a 2.5G network, has small volume and low cost, the power consumption is much smaller than that of other 3G or 4G systems, the power consumption is only 0.13mA when the GPRS module is turned off, and the current reaches about 300mA when data is received and sent and is less than half of that of 3G or 4G. The module is connected with a main MCU through a UART (asynchronous receiver transmitter), and the main MCU performs control, command or data interaction with the module through AT instructions or an instruction set of a GPRS module. The MCU completes power-off, power-off and dormancy of the GPRS module through GPIO according to specific conditions. If the power supply of the GPRS module is turned off to realize power-off, the power consumption of the GPRS module can be within a few uA, and only Iq current of the power supply is provided. The antenna port is matched with the antenna with the corresponding frequency band of 50 omega, namely the 900M or 1800M frequency band.
L ORA Internet of things can be a private network or a general L ORAWAN network, and a corresponding protocol module or a software configuration version is selected according to the needs of customers, in addition, the module also has a configuration IO interface used as a configuration function and a wake-up module, the standby power consumption of the L ORA module is extremely low, usually within 3uA, the L ORA working frequency band is usually in sub1G, the domestic common 433MHz, 470MHz-510MHz and 780MHz frequency bands, and corresponding antennas are required to be matched according to the corresponding frequency bands.
The NB-IOT module is a built-in protocol and a radio frequency circuit, the outside is connected with a 50-ohm antenna, the data interface protocol is UART or IIC and the like, and the NB-IOT module has standby modes, shutdown modes and the like.
The module can be connected with the MCU by using the PCM, and the data of the customer sensor can be read out through the MCU interface or other interfaces of the SPI or USB connection module and sent to a corresponding network through the GPRS, or L ORA, or EMTC, or NB-IOT module.
The Sigfox module can be a mature module product of a Sigfox module manufacturer, and can also be a single SOC Sigfox chip, such as a chip-level product of NXP or Onsemi. Usually, these chips have built-in Sigfox protocol libraries and transceivers. If the Sigfox finished product module is used, the Sigfox finished product module is usually connected with a master control MCU through a UART bus; if the SOC chip is used, the spi or UART is used for connecting the master control MCU, and the resource consumption of the master control is basically almost the same. The physical layer and link layer protocols of Sigfox are also contained in the module or SOC chip, and the master MCU is only used as a data forwarding channel.
In another technical scheme, the device also comprises a SIM card and a buffer switch; the SIM card is connected with the buffer switch through an SIM bus, the EMTC module, the GPRS module and the NB-IOT module are all connected with the buffer switch, and the MCU control unit controls the buffer switch to be communicated with any one of the EMTC module, the GPRS module and the NB-IOT module in a switching mode. When a customer uses the GPRS module, the MCU control unit has a user interface for the customer, application equipment or a sensor of the customer end can send an instruction to the user interface, and the MCU control unit controls the corresponding module to be opened and controls the sim card to be connected with the corresponding module.
In the technical scheme, the SIM card is connected, and only one of NB-IOT, EMTC and GPRS modules is used, so that the three modules can share the SIM card, the connection is realized through a buffer, and the switching path switching is realized through a main control MCU (micro control unit). the SIM card can be an eSIM chip or an SIM card and is specifically determined by a user.A SIM card is not needed in the other two systems L ORA and Sigfox, the ID number can be built in the module, and the board area can be saved to the maximum extent by acquiring legal ID. shared SIM card during module production.
In another technical solution, the method further comprises: a first antenna and a first radio frequency switch; the first antenna is connected with the first radio frequency switch, the EMTC module, the GPRS module and the NB-IOT module are all connected with the first radio frequency switch, the first radio frequency switch is set to be four-in and one-out, and the MCU control unit controls the first radio frequency switch to be communicated with any one of the EMTC module, the GPRS module and the NB-IOT module in a switching mode.
The four-in one-out mode means that only one in is connected with one out, and particularly, which connection is controlled through the GPIO by the MCU control unit.
In the above technical solution, the GPRS, NB-IOT, EMTC frequency bands are currently widely used in the 800-plus-1000 MHz frequency band, so according to the characteristics of this frequency band, the existing antenna in this frequency band can be used in a unified manner, only one radio frequency switch in this frequency band can be used to implement the switching from 3 to 1, and similarly, the control is implemented by the main control MCU, L ORA and Sigfox, if both use 868 or 915MHz frequency band, can also be connected to the same 800-plus-1000 MHz frequency band antenna shared with GPRS, NB-IOT, EMTC by using microstrip lines or coaxial cables, and then the switch of this antenna needs to implement the switching function from 4 to 1, if both L ORA and Sigfox use 470 frequency band modules, the antenna must be separated independently, because the frequency band below 1G is more difficult to implement the antenna in the 470-1GHz frequency band, as shown in detail in fig. 3.
In another technical solution, the frequency band of the first antenna is 800-1000MHz frequency band.
In another technical scheme, when the L ORA module and the Sigfox module adopt high frequency bands, the high frequency bands are 800-plus-1000 MHz, the L ORA module and the Sigfox module are connected with the first radio frequency switch through microstrip lines or coaxial cables, and the MCU control unit controls the first radio frequency switch to be in switching communication with any one of the EMTC module, the GPRS module, the NB-IOT module, the L ORA module and the Sigfox module.
In another technical solution, when the L ORA module and the Sigfox module adopt a low frequency band, the low frequency band is 429-510MHz, and the device further includes a second antenna and a second radio frequency switch;
the second radio frequency switch is connected with the first radio frequency switch in series, the L ORA module and the Sigfox module are both connected with the second radio frequency switch, the second antenna is connected with the second radio frequency switch, and the second radio frequency switch is set to be two-in and two-out.
Two-in and two-out means that the Sigfox module is connected to any outgoing channel, but the two paths are all in a 1:1 relationship, for example, the L ORA module may also be connected to the second antenna, the L ORA module may also be connected to another output channel, the Sigfox module may also be connected to the second antenna, the Sigfox module may also be connected to another output channel, these four cases are only one at a time,
in another technical solution, an interface unit of the MCU control unit includes: SPI interface, GPIO interface, UART interface, I2C interface, USB interface.
While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.

Claims (3)

1. The ultra-low power consumption multi-mode Internet of things wireless module is characterized by comprising an MCU control unit, a GPRS module, an NB-IOT module, an EMTC module, an L ORA module and a Sigfox module;
the GPRS module is connected with the MCU control unit through a UART, and the MCU control unit carries out control, command or data interaction on the GPRS module through AT instructions or instruction sets of the GPRS module; the MCU control unit passes GPIO for power-off, power-off and dormancy of the GPRS module;
l ORA module is connected with the MCU control unit through UART, the MCU control unit controls, commands or data interaction to the L ORA module through AT command or according to the support command table of L ORA module;
the NB-IOT module is connected with the MCU control unit through UART or IIC;
the EMTC module is connected with the MCU through a PCM interface and an SPI interface;
the Sigfox module is connected with the MCU control unit through a UART;
a first antenna and a first radio frequency switch; the first antenna is connected with the first radio frequency switch, the EMTC module, the GPRS module and the NB-IOT module are all connected with the first radio frequency switch, the first radio frequency switch is set to be four-in one-out, and the MCU control unit controls the first radio frequency switch to be switched and communicated with any one of the EMTC module, the GPRS module and the NB-IOT module;
the frequency range of the first antenna is 800-1000 MHz;
when the L ORA module and the Sigfox module adopt high frequency ranges, the high frequency ranges are 800-plus-1000 MHz, the L ORA module and the Sigfox module are connected with the first radio frequency switch through microstrip lines or coaxial cables, and the MCU control unit controls the first radio frequency switch to be switched and communicated with any one of the EMTC module, the GPRS module, the NB-IOT module, the L ORA module and the Sigfox module;
when the L ORA module and the Sigfox module adopt low frequency ranges, the low frequency ranges are 429-510MHz, and the device further comprises a second antenna and a second radio frequency switch;
the second radio frequency switch is connected with the first radio frequency switch in series, the L ORA module and the Sigfox module are both connected with the second radio frequency switch, the second antenna is connected with the second radio frequency switch, and the second radio frequency switch is set to be two-in and two-out.
2. The ultra-low power multi-mode internet of things wireless module of claim 1, further comprising a SIM card and a buffer switch; the SIM card is connected with the buffer switch through an SIM bus, the EMTC module, the GPRS module and the NB-IOT module are all connected with the buffer switch, and the MCU control unit controls the buffer switch to be communicated with any one of the EMTC module, the GPRS module and the NB-IOT module in a switching mode.
3. The ultra-low power consumption multimode internet of things wireless module as claimed in claim 1, wherein the interface unit of the MCU control unit comprises: SPI interface, GPIO interface, UART interface, I2C interface, USB interface.
CN201810443065.1A 2018-05-10 2018-05-10 Ultra-low power consumption multimode wireless module of internet of things Active CN108494414B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810443065.1A CN108494414B (en) 2018-05-10 2018-05-10 Ultra-low power consumption multimode wireless module of internet of things

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810443065.1A CN108494414B (en) 2018-05-10 2018-05-10 Ultra-low power consumption multimode wireless module of internet of things

Publications (2)

Publication Number Publication Date
CN108494414A CN108494414A (en) 2018-09-04
CN108494414B true CN108494414B (en) 2020-08-04

Family

ID=63352771

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810443065.1A Active CN108494414B (en) 2018-05-10 2018-05-10 Ultra-low power consumption multimode wireless module of internet of things

Country Status (1)

Country Link
CN (1) CN108494414B (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109525498A (en) * 2018-10-29 2019-03-26 成都博高信息技术股份有限公司 The communication means of LoraWan network and client-server
CN109683563A (en) * 2018-11-21 2019-04-26 武汉神洁建设发展有限公司 The whole network leads to terminal box environment real time monitoring system and method
CN111324572A (en) * 2018-12-14 2020-06-23 深圳市中兴微电子技术有限公司 Chip adopting heterogeneous system
CN109725195A (en) * 2019-03-01 2019-05-07 广东电网有限责任公司 A kind of electric power very-long-range kilowatt meter reading-out system based on Sigfox technology
CN110266327B (en) * 2019-06-24 2021-07-30 Oppo广东移动通信有限公司 Communication circuit and electronic device having the same
CN110247667B (en) * 2019-06-25 2021-04-09 Oppo广东移动通信有限公司 Antenna sharing method and related equipment
CN110266343B (en) * 2019-06-25 2021-05-04 Oppo广东移动通信有限公司 Antenna switching method and related equipment
CN110212965B (en) * 2019-06-25 2022-05-17 Oppo广东移动通信有限公司 Antenna switching method and related product
CN110247692B (en) * 2019-06-25 2021-08-17 Oppo广东移动通信有限公司 Channel switching method, channel switching device, electronic device and readable storage medium
CN110224719B (en) * 2019-06-25 2021-08-31 Oppo广东移动通信有限公司 Communication control method and related product
CN112135321B (en) * 2019-06-25 2023-04-07 Oppo广东移动通信有限公司 Channel switching method and related product
CN110266359B (en) * 2019-06-25 2021-05-18 Oppo广东移动通信有限公司 Antenna switching method and device, electronic equipment and computer readable storage medium
CN110866854A (en) * 2019-10-09 2020-03-06 同济大学 Safety management system for community solitary old people
CN111615133A (en) * 2020-06-19 2020-09-01 国动物联网有限公司 Low-power-consumption transmission equipment for monitoring industrial control equipment

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105914816A (en) * 2016-04-26 2016-08-31 宁波三星智能电气有限公司 Charging pile system based on LoRa internet of things
CN107016434A (en) * 2017-05-18 2017-08-04 福建时雨科技有限公司 A kind of electronic tag based on LPWAN and RFID technique
CN107027162A (en) * 2017-06-06 2017-08-08 福建强闽信息科技有限公司 A kind of LoRa intelligent gateways and its application method, Internet of things system
CN107240247A (en) * 2017-07-14 2017-10-10 杭州钛比科技有限公司 A kind of ammeter data acquisition system based on NB IoT
CN206789037U (en) * 2017-11-14 2017-12-22 杭州菲茨物联科技有限公司 A kind of Internet of Things acquisition terminal communicated based on clock synchronous acquisition and various ways
CN108011814A (en) * 2018-01-12 2018-05-08 河北工业大学 A kind of multi-protocols intelligent gateway and its implementation based on arrowband Internet of Things

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107990957A (en) * 2017-11-22 2018-05-04 广州奥格智能科技有限公司 A kind of electric water gauge low-power consumption process circuit and its energy-saving detection method
CN107966187A (en) * 2017-11-22 2018-04-27 广州奥格智能科技有限公司 A kind of tank gage super low-power consumption process circuit and its energy-saving detection method

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105914816A (en) * 2016-04-26 2016-08-31 宁波三星智能电气有限公司 Charging pile system based on LoRa internet of things
CN107016434A (en) * 2017-05-18 2017-08-04 福建时雨科技有限公司 A kind of electronic tag based on LPWAN and RFID technique
CN107027162A (en) * 2017-06-06 2017-08-08 福建强闽信息科技有限公司 A kind of LoRa intelligent gateways and its application method, Internet of things system
CN107240247A (en) * 2017-07-14 2017-10-10 杭州钛比科技有限公司 A kind of ammeter data acquisition system based on NB IoT
CN206789037U (en) * 2017-11-14 2017-12-22 杭州菲茨物联科技有限公司 A kind of Internet of Things acquisition terminal communicated based on clock synchronous acquisition and various ways
CN108011814A (en) * 2018-01-12 2018-05-08 河北工业大学 A kind of multi-protocols intelligent gateway and its implementation based on arrowband Internet of Things

Also Published As

Publication number Publication date
CN108494414A (en) 2018-09-04

Similar Documents

Publication Publication Date Title
CN108494414B (en) Ultra-low power consumption multimode wireless module of internet of things
EP2922320B1 (en) Multi-mode terminal and handover method for multi-mode terminal
CN101252757A (en) Wireless communication system, wireless communication module and wireless communication device
CN202949416U (en) Circuit structure and mobile terminal supporting wireless fidelity (WIFI) and bluetooth communication
CN203590225U (en) Ultra long distance bluetooth communication module
CN104581898A (en) Power-saving method for multi-mode terminal and power-saving device
CN104242981A (en) Embedded type communication device based on software radio
CN103714359A (en) Radio frequency identification method and system based on wireless communication terminal
CN201699992U (en) System sharing base station bandwidth by wireless access point
CN211720754U (en) Low-cost gateway of narrowband thing networking
CN105406883A (en) Wireless communication device
CN207766562U (en) A kind of multi-operation mode smart bluetooth WIFI modules
CN209170677U (en) A kind of broadband self-organization network equipment based on mobile network's access
CN211352191U (en) Socket system with wireless networking module
CN203313416U (en) A low-power consumption WIFI handset
CN208044325U (en) A kind of things-internet gateway circuit and appliance control system
CN114786244B (en) Soft access device control method, apparatus, device, storage medium and program product
CN206807796U (en) A kind of low-power consumption bluetooth turns WIFI equipment
CN204993884U (en) Novel wireless network communication device
CN203775238U (en) Router
CN204131515U (en) A kind of mobile phone signal R-T unit
CN217880058U (en) Intelligent controller for Internet of things
CN111565063B (en) Narrowband Internet of things system
CN217116073U (en) Dual-frenquency wiFi module and WIFI equipment
CN220629589U (en) Communication module

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
CP01 Change in the name or title of a patent holder

Address after: 430000 Guanggu Exhibition Center, No. 1 East Road, Software Park, Donghu New Technology Development Zone, Wuhan City, Hubei Province, Extension Project D Block, 1st Floor V113 Room

Patentee after: Wuhan Tongfu LianWu Technology Co.,Ltd.

Address before: 430000 Guanggu Exhibition Center, No. 1 East Road, Software Park, Donghu New Technology Development Zone, Wuhan City, Hubei Province, Extension Project D Block, 1st Floor V113 Room

Patentee before: WUHAN ZHONGDIAN IOT TECHNOLOGY Co.,Ltd.

CP01 Change in the name or title of a patent holder
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of invention: Ultra low power multimode IOT wireless module

Effective date of registration: 20220331

Granted publication date: 20200804

Pledgee: Wuhan area branch of Hubei pilot free trade zone of Bank of China Ltd.

Pledgor: Wuhan Tongfu LianWu Technology Co.,Ltd.

Registration number: Y2022420000093

PE01 Entry into force of the registration of the contract for pledge of patent right