[go: up one dir, main page]

WO2018161545A1 - Dispositif intégrant de multiples modes de communication - Google Patents

Dispositif intégrant de multiples modes de communication Download PDF

Info

Publication number
WO2018161545A1
WO2018161545A1 PCT/CN2017/103897 CN2017103897W WO2018161545A1 WO 2018161545 A1 WO2018161545 A1 WO 2018161545A1 CN 2017103897 W CN2017103897 W CN 2017103897W WO 2018161545 A1 WO2018161545 A1 WO 2018161545A1
Authority
WO
WIPO (PCT)
Prior art keywords
bus
communication
data
meter
station
Prior art date
Application number
PCT/CN2017/103897
Other languages
English (en)
Chinese (zh)
Inventor
臧志斌
林大朋
史兵
陆欣
何业慎
孙丽莉
Original Assignee
深圳市国电科技通信有限公司
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 深圳市国电科技通信有限公司 filed Critical 深圳市国电科技通信有限公司
Publication of WO2018161545A1 publication Critical patent/WO2018161545A1/fr

Links

Images

Classifications

    • 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
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C19/00—Electric signal transmission systems
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C23/00—Non-electrical signal transmission systems, e.g. optical systems
    • G08C23/04—Non-electrical signal transmission systems, e.g. optical systems using light waves, e.g. infrared

Definitions

  • the present invention relates to a communication device, and more particularly to a device that combines multiple communication methods.
  • the existing communication devices have a single communication method and are demanding on site, which cannot meet the diversified application requirements. Especially in the old residential quarters, the information collection points are intricate and complex, and the single technology application faces great challenges;
  • the existing communication device networking has little flexibility. Once the construction is completed, it is difficult to add and expand. There is a signal blind zone, which cannot meet the requirements of full coverage.
  • the existing communication device lacks the M_BUS bus interface, and cannot supply and communicate with the passive meter such as wired water and gas heat, and cannot realize the integrated multi-table collection of the electric water, gas and heat meter;
  • the existing communication devices are individually networked and self-contained, and user information sharing cannot be realized, forming information barriers.
  • the embodiments of the present invention are intended to provide an apparatus for merging multiple communication modes that meets the current user diversity metering collection requirements, to solve one or more of the above prior art problems.
  • an embodiment of the present invention provides an apparatus for combining multiple communication modes, where the apparatus includes:
  • a dual mode communication module configured to support at least broadband carrier communication network communication and micro power wireless communication network communication;
  • the M-BUS bus is a half-duplex communication bus, and the M-BUS bus is responsible for providing power to the slave station while data is being transmitted;
  • the RS-485 bus is a serial communication line
  • An infrared communication unit wherein the infrared communication unit communicates by using a communication method of transmitting information by infrared rays;
  • An LED indicating unit configured to display an operating state of the device, including an operation, an alarm, an uplink transceiver, and a downlink transceiver status;
  • the data storage unit is mainly configured to store meter parameter configuration information and table data freezing;
  • a real-time clock unit configured to clock the device to maintain system clock consistency
  • the central processing unit is responsible for the entire device data processing and storage, using 8M external clock to form the minimum CPU system, with a variety of serial communication interfaces, to achieve different meter data transmission and reception, conversion, through conventional input / output (IO).
  • the Input/Output interface implements various peripheral controls.
  • the above dual mode communication module includes a broadband carrier communication unit and a micro power wireless communication unit.
  • the dual mode communication module is composed of a broadband carrier communication unit and a micro power wireless communication unit; wherein the broadband carrier communication unit is a broadband power line carrier communication unit.
  • the central processing unit is responsible for data processing and storage of the entire device by adopting a Cortex-M3 core processing chip, and adopts an 8M external clock to form a minimum CPU system, and at least has a universal asynchronous transceiver (UART, Universal Asynchronous).
  • Serial communication interfaces such as Receiver/Transmitter), Serial Peripheral Interface (SPI), and Inter-Integrated Circuit (IIC).
  • the M-BUS bus adopts a master-slave mode in communication, and a signal transmitted by the master station to the slave station is represented by a change in a voltage value, and a signal transmitted from the station to the master station adopts a change in current value. It means that the connection of each node on the M-BUS bus is not positive or negative, and there is no polarity requirement.
  • the device is configured with two M-BUS bus master ports and one slave port, which can realize real-time conversion of slave data to the master data; the M-BUS bus master side adopts the first wake-up The method of delaying power-off after delay communication and communication success.
  • the M-BUS bus master station provides communication of 22V or more and 2 mA for all slave stations on the M-BUS bus while communicating with the remote slave station, and the slave station reads the meter data and data. Transfer use.
  • the RS485 bus uses a differential signal for data transmission; the device has a RS485 bus interface, and the RS485 bus interface works in an uplink communication mode by default, so that the meter reading can be performed when the meter station is accessed.
  • Data forwarding, RS-485 to Digital Integrated Circuit (TTL, Transistor-Transistor-Logic) serial port tool can send upgrade command to enter upgrade mode, send parameter setting command can set corresponding parameters, send function switching command can switch to downlink meter reading function .
  • TTL Transistor-Transistor-Logic
  • the device adopts a power line broadband carrier, an M-BUS bus slave end, and an infrared communication manner, and a downlink uses a micro power wireless, an M-BUS bus master end, and an RS485 total.
  • Line mode the data from top-down and bottom-up transmission process to resolve conflicts in multiple upstream channel meter reading.
  • the data storage unit is further configured to store daily freeze meter data, monthly freeze meter data, and meter alarm events.
  • the device can simultaneously collect data of meters, water meters, gas meters, heat meters and the like, realize multi-table integrated collection function, eliminate data barriers and realize information sharing;
  • the device combines various communication modes such as broadband power line, micro power wireless, M-BUS bus, RS-485 bus and infrared communication.
  • the field application has small constraints, large selection space, flexible networking mode, and great construction and debugging. Convenience;
  • the device can supply power to the M-BUS meter.
  • the meter can be powered completely from the bus or powered by the bus and the battery. It solves the power consumption problem of the passive meter, prolongs the battery life and reduces the maintenance cost of the meter. ;
  • the dual-mode communication module of the device can form a point-to-multipoint star network with the water and gas heat meter micro-power sub-module, and the water-gas heat meter micro-power sub-module does not participate in the networking, and adopts a method of periodically opening a window to listen to the air signal. Communicate with the dual-mode communication module to minimize the communication energy consumption of the passive meter and extend the service life of the meter;
  • the device integrates the water gas meter company with the data collection business of the power grid enterprise, avoids redundant construction, reduces the inconvenience caused by the construction, and greatly improves the feasibility of the automatic data collection business promotion;
  • FIG. 1 is a hardware block diagram of a device for combining multiple communication modes according to an embodiment of the present invention
  • FIG. 2 is a wake-up diagram of a M-BUS bus master port according to an embodiment of the present invention
  • FIG. 3 is a code flow diagram of an M-BUS bus according to an embodiment of the present invention.
  • FIG. 4 is a schematic diagram of an implementation of an M-BUS bus according to an embodiment of the present invention.
  • FIG. 5 is a functional diagram of an apparatus for combining multiple communication modes according to an embodiment of the present invention.
  • the embodiment of the invention provides a device for combining multiple communication modes. As shown in FIG. 1 , the device is mainly composed of the following modules;
  • Dual-mode communication module The device has a dual-mode communication module, and the dual-mode communication module is configured to support at least broadband carrier communication network communication and micro-power wireless communication network communication; for example, the module includes a broadband carrier communication unit and micro a power wireless communication unit, the broadband carrier communication unit adopts an Orthogonal Frequency Division Multiplexing (OFDM) physical layer broadband communication technology optimized for a low-voltage power distribution power line network, and the working frequency ranges from 2 to 12.5 MHz, and the physical The layer communication rate is greater than 10 MHz; the micro power wireless communication unit adopts a professional metering frequency band of 470 MHz to 510 MHz, and a Gaussian frequency shift keying (GFSK) modulation mode, the transmission power is less than 50 mW, and the communication rate is 10 Kbps, which can effectively meet the requirements.
  • OFDM Orthogonal Frequency Division Multiplexing
  • GFSK Gaussian frequency shift keying
  • the broadband carrier communication unit is a broadband power line carrier communication unit
  • the dual-mode communication module is respectively compatible with a local broadband carrier communication network and a local micro-power wireless communication network, and overcomes Existing single broadband carrier communication in power
  • the transmission line quality is poor success rate is not high, and a single micro-power wireless communication disadvantages space requirements for more information collection case, poor quality in the power module with the environment It is set as a micro-power wireless communication mode, and is configured as a broadband carrier communication mode when there is a large amount of closed space in the environment, which greatly improves the data transmission success rate;
  • the micro-power wireless communication unit is also connected with the surrounding low-power wireless water and gas heat meter.
  • the dual-mode communication module takes broadband
  • the advantages of carrier communication and micro-power wireless communication can be configured according to the field; in addition, the micro-power wireless communication unit communicates with the low-power wireless meter as a new function.
  • M-BUS bus is a half-duplex communication bus.
  • the bus is responsible for supplying power to the slave station while data is being transmitted. It is also called power bus.
  • the master-slave mode is used for communication.
  • the signal transmitted by the station is represented by the change of the voltage value.
  • the signal transmitted from the station to the primary station is represented by the change of the current value.
  • the connection of each node on the bus is not positive or negative, and there is no polarity requirement, which can effectively solve the problem of water and gas heat.
  • the meter can not take power; the device is equipped with 2 M-BUS bus master port and 1 slave port, which can realize real-time conversion of slave data to master data; for existing M-BUS bus master
  • the short-time wake-up communication has low success rate and high power consumption for a long time.
  • the M-BUS bus master station adopts the first wake-up delay communication and the communication is delayed after power-off, in the slave M-BUS bus.
  • the station port encrypts the data, first power on the bus for 1.5s, then send the read data frame. After the M-BUS meter returns successfully, delay 40s and then power off. If there is next frame reading data in 40s, it will not be performed.
  • the M-BUS bus circuit the data bits transmitted on the M-BUS bus are defined as follows: (1)
  • the signal transmitted by the primary station to the secondary station is represented by a change in the voltage value, that is, the data stream transmitted by the primary station to the secondary station is A sequence of voltage pulses with a logic 1 of +36V and a logic of 0 with +24V.
  • the line will remain in the logic 1 state, and the upper half of Figure 3 shows the data stream diagram transmitted by the primary station to the terminal slave.
  • the signal transmitted from the station to the primary station is represented by the change of the current value, that is, the data stream sent by the slave station to the primary station is a current pulse sequence, which is usually represented by a current value of 1.5 mA when transmitting At 0 o'clock, the current value is increased by 11 to 20 mA by the slave control.
  • the lower half of Figure 3 shows a code stream diagram of the data transmitted by the slave station to the primary station.
  • the device uses a new M-BUS high-power transceiver circuit.
  • the high-voltage operational amplifier modulates the voltage output.
  • the op amp is in the comparison input mode, and the sampling slave transmits the circuit.
  • the operational amplifier can realize different levels of load; the M-BUS bus schematic can be seen in Figure 4.
  • the wake-up process of the M-BUS bus is shown in Figure 2.
  • the wake-up process and the wake-up procedure of the existing device have at least the following differences: the existing device rarely uses the M-BUS bus interface, and basically does not have the M-BUS bus master at the same time.
  • the equipment of the station interface and the slave interface; at the same time, the current M-BUS bus host interface basically adopts the continuous power supply mode, and the power consumption of the device is high, and the energy waste is serious.
  • RS-485 bus is a common serial communication line, which uses differential signals for data transmission. It has many access nodes, long transmission distance and strong anti-interference ability.
  • the device has 1 RS485 bus.
  • the interface Compared with the single meter reading of the existing equipment, the interface combines functions such as meter reading, data forwarding, parameter setting and software upgrade, which greatly improves the applicability and maintainability of the device.
  • the interface works in the uplink communication mode by default. When the metering station is connected, the meter reading data can be forwarded.
  • the RS-485 to TTL serial port tool can be used to send the upgrade command to enter the upgrade mode.
  • the parameter setting command can be used to set the corresponding parameters and send the function switching command. It can be switched to the downstream meter reading function to make the bus performance fully utilized.
  • Infrared communication is a communication method that uses infrared to transmit information.
  • the infrared wavelength range is 0.70 ⁇ m to 1 mm, and the carrier frequency is 38 KHz.
  • the LED indicating unit is mainly configured to display the working state of the device, including operation, alarm, uplink transceiver, and downlink transceiver status.
  • the LED indicating unit can It is an LED (Light-Emitting Diode) indicator.
  • Data storage unit is mainly configured to store the meter parameter configuration information and the meter data freeze.
  • Real-time clock unit is configured to clock the device to maintain system clock consistency. .
  • the central processing unit adopts Cortex-M3 core processing chip, which is responsible for data processing and storage of the whole device. It adopts 8M external clock to form the minimum CPU system, and has serial communication interfaces such as UART, SPI, IIC, etc.
  • the meter data is transceived and converted, and various peripheral controls are realized through a conventional IO interface, which is a core part of the device.
  • FIG. 5 is a functional diagram of a device for combining multiple communication modes according to an embodiment of the present invention.
  • the device that combines multiple communication modes has at least electric meter collection, water meter collection, gas meter collection, and heat meter collection. , protocol conversion, data transmission, data storage, message forwarding and other functions, the device works as follows:
  • the device can realize the meter collecting function through micro power wireless or RS485 bus mode.
  • the communication protocol is compatible with DLT645 protocol _2007 version and 1997 version.
  • the reading data type includes current real-time data, alarm data and historical freeze data.
  • Water meter collection can be realized by micro power wireless, M-BUS bus master station or RS485 bus.
  • the communication protocol has CJ/T188-2004 "Technical Conditions for Data Transmission of Household Meters", DLT645 Protocol _2007 Edition and 1997 The version and each manufacturer's own agreement, the data type of the reading includes the current cumulative flow and the cumulative flow on the settlement date.
  • the gas meter collection is mainly realized by using the built-in water-gas heat meter micro-power sub-module.
  • the module detects the airborne wireless signal through periodic cyclic window opening, and decides whether to process according to the received data.
  • the communication protocol is mainly CJ/T188-2004 "Technical Conditions for Data Transmission of Household Meters", the data type of the copy includes the current cumulative flow and the cumulative flow on the settlement date.
  • Heat meter collection is mainly realized by M-BUS bus master station mode, communication gauge
  • the main data is CJ/T188-2004 "Technical Conditions for Data Transmission of Household Meters".
  • the data types for the collection include the current cumulative flow and the cumulative flow at the settlement date.
  • Protocol conversion The protocol converter can adapt to a variety of meter specifications, convert the meter reading message of the upper concentrator into a meter reading table that can be identified by the meter, and then copy the meter after successful meter reading. The message replied by the meter is converted into a concentrator protocol message for reply.
  • the device adopts power line broadband carrier, M-BUS bus slave and infrared communication mode, and has micro power wireless, M-BUS bus master and RS485 bus mode to realize data top-down and bottom-down.
  • the above transmission process can solve the conflicts in the multi-channel channel meter reading.
  • the device stores meter data including daily freeze data, monthly freeze data, and alarm events.
  • the device can transparently forward the message of the electric water and gas heat meter according to the requirements of the concentrator, and switch the meter according to the appropriate baud rate of the uplink message.
  • Remote power supply When the M-BUS bus master communicates with the remote slave station, it provides 22V or more and 2mA power supply for all slave stations on the bus, which is used by the slave station to read meter data and data transmission.
  • the division of the unit is only a logical function division. In actual implementation, there may be another division manner, such as: multiple units or components may be combined, or Can be integrated into another system, or some features can be ignored or not executed.
  • the coupling, or direct coupling, or communication connection of the components shown or discussed may be indirect coupling or communication connection through some interfaces, devices or units, and may be electrical, mechanical or other forms. of.
  • the units described above as separate components may or may not be physically separated, and the components displayed as the unit may or may not be physical units, that is, may be located in one place or distributed to multiple network units; You can choose some of them according to your actual needs. Or all of the units to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may be separately used as one unit, or two or more units may be integrated into one unit;
  • the unit can be implemented in the form of hardware or in the form of hardware plus software functional units.
  • the device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, ie may be located A place, or it can be distributed to multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the embodiment. Those of ordinary skill in the art can understand and implement without deliberate labor.
  • the device for merging multiple communication modes can simultaneously collect data of meters, water meters, gas meters, heat meters and the like, realize multi-table integrated collection function, eliminate data barriers, and realize Information sharing; a combination of broadband power lines, micro-power wireless, M-BUS bus, RS-485 bus and infrared communication and other communication methods, field application constraints are small, choose the room Large, flexible networking, bringing great convenience to construction and commissioning.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)

Abstract

L'invention concerne un dispositif intégrant de multiples modes de communication. Le dispositif comprend : un module de communication à double mode, un bus M, un bus RS-485, une unité d'indicateur à LED, une unité de stockage de données, une unité d'horloge en temps réel, et une unité centrale de traitement. L'unité centrale de traitement utilise une puce de traitement à noyau Cortex-M3 pour gérer le traitement et le stockage de données de l'ensemble du dispositif. Une horloge externe 8M hertz est utilisée pour former un système CPU minimal ayant des interfaces de communication série, telles que UART, SPI et IIC. La présente invention permet la transmission, la réception et la conversion de données provenant de différents jauges et compteurs, et réalise une commande de dispositif périphérique au moyen d'interfaces IO classiques.
PCT/CN2017/103897 2017-03-10 2017-09-28 Dispositif intégrant de multiples modes de communication WO2018161545A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201710141978.3A CN106960558B (zh) 2017-03-10 2017-03-10 一种融合多种通信方式的装置
CN201710141978.3 2017-03-10

Publications (1)

Publication Number Publication Date
WO2018161545A1 true WO2018161545A1 (fr) 2018-09-13

Family

ID=59470068

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2017/103897 WO2018161545A1 (fr) 2017-03-10 2017-09-28 Dispositif intégrant de multiples modes de communication

Country Status (2)

Country Link
CN (1) CN106960558B (fr)
WO (1) WO2018161545A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109754591A (zh) * 2018-12-21 2019-05-14 湖南常德牌水表制造有限公司 一种抄表系统及抄表方法

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106960558B (zh) * 2017-03-10 2020-01-21 深圳市国电科技通信有限公司 一种融合多种通信方式的装置
CN107833452B (zh) * 2017-11-15 2019-11-19 安徽南瑞中天电力电子有限公司 一种mbus总线强带载能力ⅲ型、ⅳ型采集器
CN108492544A (zh) * 2018-04-08 2018-09-04 安特仪表集团有限公司 高速载波通信装置及系统
CN108710598B (zh) * 2018-04-28 2022-02-22 全球能源互联网研究院有限公司 一种芯片架构
CN110060456A (zh) * 2019-03-27 2019-07-26 山东德源电力科技有限公司 基于无线和高速载波的数据传输方法、装置及相关系统
CN110568236B (zh) * 2019-07-24 2022-04-15 浙江华云信息科技有限公司 一种低功耗的智能电能表通信仓
CN111813728B (zh) * 2020-09-02 2021-01-15 湖南慧明谦信息技术有限公司 一种单串口复用方式实现的多总线、多信道接口
CN113419530A (zh) * 2021-06-25 2021-09-21 中国科学院重庆绿色智能技术研究院 一种具有天气预警功能的市政用扫地系统及方法
CN114827223B (zh) * 2022-05-10 2023-08-08 哈尔滨圣昌科技开发有限公司 一种智能管线远程设备的控制系统及其操作方法

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110035338A1 (en) * 2009-08-05 2011-02-10 Electro Industries/Gauge Tech. Intelligent electronic device having user-authenticating capabilities
CN202230599U (zh) * 2011-09-14 2012-05-23 山东同天电子有限公司 能源管理采集器
CN204129936U (zh) * 2014-09-04 2015-01-28 烟台腾联信息科技有限公司 远程燃气抄表系统
CN204833686U (zh) * 2015-08-13 2015-12-02 国网辽宁省电力有限公司 一种基于ofdm电力线载波和无线的双模抄表系统
CN105788206A (zh) * 2016-01-07 2016-07-20 江苏省电力公司电力科学研究院 一种基于双模通信的用电信息采集系统及其方法
CN106205101A (zh) * 2016-09-28 2016-12-07 申丽 一种用于集抄系统并兼容欧标协议的m‑bus通信接口转换器
CN106960558A (zh) * 2017-03-10 2017-07-18 深圳市国电科技通信有限公司 一种融合多种通信方式的装置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI125256B (en) * 2012-09-07 2015-08-14 There Corp Oy A method of interrupting traffic in a mesh control system
CN105322981B (zh) * 2014-06-30 2018-05-25 深圳友讯达科技股份有限公司 一种双模异构通信装置
CN204089806U (zh) * 2014-09-16 2015-01-07 宁夏赛文节能设备制造有限公司 低功耗主机mbus收发控制电路
CN204965713U (zh) * 2015-07-10 2016-01-13 珠海慧信微电子有限公司 基于电力线宽带载波通信的多信道数据采集器
CN205354304U (zh) * 2016-02-01 2016-06-29 湖南威铭能源科技有限公司 用于多类型计量表计的通信接口转换器
CN105656501A (zh) * 2016-02-01 2016-06-08 华电智连信达科技（北京）有限公司 一种多模通信装置及多模通信方法
CN205983452U (zh) * 2016-06-07 2017-02-22 贵州电网有限责任公司贵阳供电局 一种基于tc‑bus的通信接口转换器
CN205959384U (zh) * 2016-08-29 2017-02-15 中国电力科学研究院 一种集成式数据采集装置
CN106781399A (zh) * 2017-01-11 2017-05-31 安徽汉威电子有限公司 一种低功耗无线抄表中继单元

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110035338A1 (en) * 2009-08-05 2011-02-10 Electro Industries/Gauge Tech. Intelligent electronic device having user-authenticating capabilities
CN202230599U (zh) * 2011-09-14 2012-05-23 山东同天电子有限公司 能源管理采集器
CN204129936U (zh) * 2014-09-04 2015-01-28 烟台腾联信息科技有限公司 远程燃气抄表系统
CN204833686U (zh) * 2015-08-13 2015-12-02 国网辽宁省电力有限公司 一种基于ofdm电力线载波和无线的双模抄表系统
CN105788206A (zh) * 2016-01-07 2016-07-20 江苏省电力公司电力科学研究院 一种基于双模通信的用电信息采集系统及其方法
CN106205101A (zh) * 2016-09-28 2016-12-07 申丽 一种用于集抄系统并兼容欧标协议的m‑bus通信接口转换器
CN106960558A (zh) * 2017-03-10 2017-07-18 深圳市国电科技通信有限公司 一种融合多种通信方式的装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109754591A (zh) * 2018-12-21 2019-05-14 湖南常德牌水表制造有限公司 一种抄表系统及抄表方法

Also Published As

Publication number Publication date
CN106960558A (zh) 2017-07-18
CN106960558B (zh) 2020-01-21

Similar Documents

Publication Publication Date Title
WO2018161545A1 (fr) Dispositif intégrant de multiples modes de communication
CN201550323U (zh) 路灯远程控制系统
CN206332860U (zh) LoRa网关
CN106993035A (zh) 一种基于LoRa技术的智能沼气监测系统
CN201358816Y (zh) 基于无线数据收发与信号转换器的矿山安全监测监控系统
CN205680272U (zh) 一种支持多模通信维护的智能抄控器及系统
CN114023053B (zh) 一种基于hplc和蓝牙的末梢用能数据采集系统及方法
CN107196707B (zh) 分布式光载无线-WiFi-ZigBee网络
CN107959679A (zh) 一种基于nb-iot网络的usb透传设备及方法
CN214315305U (zh) 一种基于太阳能电站的数传电台智能通信装置
CN109272735B (zh) 用于居民电能集抄系统的通信转换器
CN206775651U (zh) 一种基于电力线载波的智能转换器
CN208903414U (zh) 符合南方电网电能表通信协议的LoRa无线数据采集器
CN206698254U (zh) 一种基于LoRa技术的智能沼气监测系统
CN201622683U (zh) 信号机遥控器及基于所述遥控器构建的信号机控制系统
CN210666763U (zh) 加油机网关
CN110943761B (zh) 一种远距离带中继的电力载波装置
CN207425096U (zh) 一种基于td-lte230的四表合一集中器装置及系统
CN103546485B (zh) Dc600v 列车供电装置用网卡
CN206894357U (zh) 一种基于LoRa技术的分布式电源监管系统
CN205983452U (zh) 一种基于tc‑bus的通信接口转换器
CN202663900U (zh) 一种农业灌溉装置
CN206557976U (zh) 基于电力载波通信的智能能耗采集器
CN201392592Y (zh) 太阳能远程交通信号集中控制系统
CN202841129U (zh) Rf485数据中继器

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 17899374

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 17899374

Country of ref document: EP

Kind code of ref document: A1