CN107293104A - A kind of Mine-used I. S wireless pressure collection transmission substation - Google Patents

A kind of Mine-used I. S wireless pressure collection transmission substation Download PDF

Info

Publication number
CN107293104A
CN107293104A CN201710686102.7A CN201710686102A CN107293104A CN 107293104 A CN107293104 A CN 107293104A CN 201710686102 A CN201710686102 A CN 201710686102A CN 107293104 A CN107293104 A CN 107293104A
Authority
CN
China
Prior art keywords
mas205
interfaces
mine
substation
interchangers
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.)
Withdrawn
Application number
CN201710686102.7A
Other languages
Chinese (zh)
Inventor
洪凌海
李竹洋
王琛
朱小平
张冰珏
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.)
Hydraulic Ltd By Share Ltd
Original Assignee
Hydraulic Ltd By Share 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 Hydraulic Ltd By Share Ltd filed Critical Hydraulic Ltd By Share Ltd
Priority to CN201710686102.7A priority Critical patent/CN107293104A/en
Publication of CN107293104A publication Critical patent/CN107293104A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G08SIGNALLING
    • G08CTRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C17/00Arrangements for transmitting signals characterised by the use of a wireless electrical link
    • G08C17/02Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
    • GPHYSICS
    • G08SIGNALLING
    • G08CTRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C19/00Electric signal transmission systems

Abstract

Present invention employs a kind of Mine-used I. S wireless pressure collection transmission substation, including casing, casing includes protecgulum and base, substation body is fixed in base, observation and operation button are provided with protecgulum, base both sides are provided with cable entry, base is provided with antenna, substation body is by mainboard, BM200N concentrators, MAS205 interchangers, OLED module is constituted, BM200N concentrators are built-in with WaveMesh agreements, mainboard is by MSP microcontrollers, memory module, RS485 modules, Ethernet to serial interface is constituted with ISO modem modules, still can be with normal work if can effectively solve to occur part of nodes paralysis network Mine-used I. S wireless pressure collection transmission substation using the WaveMesh mechanicss of communication, it can be adapted to use in the rugged environment of underground;Can also realize can set up the route of point-to-point between each node and node, it is possible to reduce the wireless routing device under mine, and the advantage that its specific handling capacity is big, data transfer delay is low, can also effectively solve the problem of frequency acquisition is low under mine.

Description

A kind of Mine-used I. S wireless pressure collection transmission substation
Technical field
Substation, more particularly to a kind of collection transmission of Mine-used I. S wireless pressure are transmitted the present invention relates to a kind of pressure acquisition Substation.
Background technology
Colliery gather its may include coal mine fully-mechanized mining, it is comprehensive put, tunnel, back production several stages, but coal mine fully-mechanized mining working is Most easily occur the stage of accident during the collection of colliery, and main at this what safety in production was impacted is its fully mechanized coal face hydraulic pressure The pressure of support;The ore deposit gathered used in general coal mining in colliery presses its frequency acquisition of detection device to be in Lower state, But the appearance monitoring device of the situation can not be acquired to the periodic weighting and impact low pressure of moment generation;Wherein in the market The collection substation for the main sale in coal mining mostly only to wired sensor carry out data acquisition;In the market for The ore deposit pressure detection device majority of colliery collection is powered using battery, but ore deposit pressure detection device in part need to make under adverse circumstances With, thereby result in for ore deposit press detection device battery altering inconvenience.
The content of the invention
The present invention is high there is provided a kind of frequency acquisition to solve the deficiencies in the prior art, can be to wireless senser Carry out the Mine-used I. S wireless pressure collection transmission substation of data acquisition.
To achieve the above object, present invention employs a kind of Mine-used I. S wireless pressure collection transmission substation, including case Body, casing includes protecgulum, substation body and base, and substation body passes through the cooperation between protecgulum and base in base A sealing cavity is internally formed, substation body includes mainboard, MAS205 interchangers, OLED module and BM200N concentrators, BM200N concentrators are built-in with WaveMesh agreements, and mainboard includes MSP microcontrollers, memory module, RS485 modules, Ethernet Turn serial port module, ISO modem modules, the BM200N concentrators output end is connected with MSP microcontroller inputs, MSP microcontroller outputs are connected with OLED module and memory module input respectively, and memory module output end is adjusted with ISO respectively Modulator-demodulator module and RS485 module inputs are connected, and ISO modem modules are exported by telephone wire communication interface to be believed Number, RS485 modules export 485 communication signals by 485 communication interfaces, and mainboard is handed over by Ethernet to serial interface and MAS205 Change planes connected, constitute the connection between mainboard and MAS205 interchangers.
Above-mentioned Mine-used I. S wireless pressure collection transmission substation, the substation body include mainboard, MAS205 interchangers, BM200N concentrators, OLED module, mainboard include MSP430 single-chip microcomputers, storage module, ISO modems, RS485 modules, Ethernet to serial interface, and Ethernet to serial interface uses NE-100TL Ethernet to serial interface;BM200N concentrators Wireless communication technique is built-in with, and the wireless communication technique uses WaveMesh mechanicss of communication, WaveMesh mechanicss of communication are one Kind can reality closely, low-power consumption, low cost, distributed wireless ad hoc technology, topological structure uses network structure, , still can be just if there is part of nodes paralysis network Mine-used I. S wireless pressure collection transmission substation and its route robustness is good Often work, makes Mine-used I. S wireless pressure collection transmission substation to be adapted to make in the rugged environment of underground based on a variety of advantages With;WaveMesh mechanicss of communication, which can also be realized, can set up the route of point-to-point between each node and node, it is not necessary to as It is necessary to have routing forwarding for data message between the procotol node of the sub-clusterings such as zigbee, it is possible to reduce under mine without circuit By equipment;WaveMesh mechanicss of communication are also equipped with the advantage that handling capacity is big, data transfer delay is low;And it is logical by the WaveMesh News technology realizes that collection substation effectively solves existing ore deposit pressure detection product under mine and uses the problem of frequency acquisition is low;Its work Principle is concentrated data acquisition to BM200N using hull outside antenna to provide direct current 12V power supplys by outside uninterrupted power source Device, then transmitted signal conversion storage to storage module, then by ZNE-100TL Ethernet to serial interface by MSP430 single-chip microcomputers To MAS205 interchangers, transmitted using the optical port or power port of MAS205 interchangers to host computer, or adjusted using the ISO on mainboard Modulator-demodulator or RS485 module transfers are to host computer;Furthermore due to wireless senser on collection mine fully mechanized coal face hydraulic support Pressure data, is converted into analog signal with a variety of transmission means by built-in processing module and is transferred to upper interchanger, most at last Signal is sent to ground monitoring exchange, can reach ground remote real time monitoring underground fully mechanized coal face hydraulic support pressure and underground without The battery status of line node.
The present invention is further arranged to, and RJ11 interfaces, ISO modem moulds are provided with ISO modem modules Block is connected by RJ11 interfaces with binding post, and MAS205 interchangers include RJ45 interfaces 2, RJ45 interfaces 3, SC single-mode fibers and connect Mouth 1, SC single-mode fibers interface 2, Ethernet to serial interface include RJ45 interfaces 1, MAS205 interchangers and ISO modems It is made up of and is connected with RJ45 interfaces 2 RJ45 interfaces 1 between module, and MAS205 interchangers pass through RJ45 interfaces 3 and terminals Son is connected;MAS205 interchangers are made up of the upper and lower two-plies of MAS205, and RJ45 interfaces 2, RJ45 interfaces 3 and SC single-mode fibers connect Mouth 1 is arranged on MAS205 top plates, and SC single-mode fibers interface 2 is arranged on MAS205 lower plywoods, Ethernet to serial interface Using ZNE-100TL Ethernet to serial interface, MAS205 interchangers are Ethernet switch MAS205, SC single-mode fiber interface 2 be Ethernet optical port with SC single-mode fibers interface 1, and RJ45 interfaces 1, RJ45 interfaces 2 are Ethernet electricity with RJ45 interfaces 3 Mouthful.
Above-mentioned Mine-used I. S wireless pressure collection transmission substation, the ISO modems are that one kind can be computer Data signal translate into the analog signal that can be transmitted along ordinary telephone line, and these analog signals can be by the circuit other end Another modem is received, and is translated into the language that computer can be understood, this simple procedure completes two intercomputers The equipment that communication module passes through, and adding an ISO modems in substation can preferably make RJ11 phones obtain good place Reason, furthermore by WaveMesh be it is a kind of concentrate module to gather wireless data using wireless self-networking, and add thereon ether The modules such as net optical port, RJ45 Ethernets power port, RJ11 telephone line interfaces, RS485 can more preferably institute's gathered data accuracy, and adopting Collection data are uploaded to ground monitoring exchange, and the data transmission rate of which collection is high.
The present invention is further arranged to, and being provided with base upper surface in a through hole, base also includes an antenna, the antenna It is placed in through hole and constitutes therewith spacing, antenna end is arranged in base, and what is be connected at BM200N concentrators with mainboard is another End is connected and fixed thereto with antenna end.
Above-mentioned Mine-used I. S wireless pressure collection transmission substation, the antenna by being provided with base, and pass through The BM200N concentrators that antenna end is fixed, complete the collection to the signal between wireless senser, and the collection of the signal is main For the collection between the wireless node apparatus data that are associated with substation;Furthermore the node can be continuous nodes, or interrupt Node, because the data are real-time data acquisition and are uploaded to monitoring exchange, if there is some node or the paralysis of multiple nodes, Whole piece gathering line will not be caused to paralyse, but worked on using some node is skipped, and a certain paralysis node situation is real-time Monitoring exchange is reflected in, then real-time reparation is completed to it by operating personnel.
The present invention is further arranged to, and an observation window is provided with protecgulum, and operation button is provided with below the observation window, is grasped Make to set a connecting line one end with the operation button back side to be connected at button, the other end is connected with MSP microcontrollers, base outer wall And drawn with forming each module at the symmetrical cable entry in left and right position, the substation body at its two sides by cable Enter device to be connected with extraneous each parts composition.
Above-mentioned Mine-used I. S wireless pressure collection transmission substation, the sealing between the protecgulum and base is good, and Fixation between relative is reliable, an observation window is provided with protecgulum, the observation side of wearing is provided with operation button, can pass through observation Window observes box house situation, and gathered data can be inquired about by operation button;Furthermore it is provided with each in casing Module and device are provided with cable entry by chassis outer side and docked with the formation of outside miscellaneous part, and by each other Docking, can complete the transmission with each signal in casing, and the signal transmission between this is reliable.
The present invention is further arranged to, and base outer wall is provided with a hook with antenna same lateral position.
Above-mentioned Mine-used I. S wireless pressure collection transmission substation, it is described Mine-used I. S wireless pressure to be made by hook Collection transmission substation is fixed on certain.
Brief description of the drawings
Fig. 1 is Mine-used I. S wireless pressure collection transmission substation functional-block diagram of the present invention;
Fig. 2 is Mine-used I. S wireless pressure collection transmission substation structure distribution figure of the present invention;
Fig. 3 is Mine-used I. S wireless pressure collection transmission substation casing front view of the present invention;
Fig. 4 is Mine-used I. S wireless pressure collection transmission substation casing top view of the present invention;
Embodiment
As described in Fig. 1-4, present invention employs a kind of Mine-used I. S wireless pressure collection transmission substation, including casing, Casing includes protecgulum 1 and base 2, and protecgulum 1 coordinates it to be internally formed a sealing cavity with base 2, and substation body is fixed on base 2 It is interior, an observation window is provided with protecgulum 1, four operation buttons are provided with below the observation window, and four buttons assume diamond in shape shape Arrange and be distributed in the middle position of protecgulum 1, the outer wall of base 2 and with its two sides formed left and right position it is symmetrical three groups electricity Cable introducing device, its three groups of cable entries are respectively A0 cable entries 15, A1 cable entries 16 and A2 electricity Each module is made up of with extraneous each parts cable entry and is connected at cable introducing device 17, substation body, the upper table of base 2 Being provided with face in a through hole, base 2 also includes an antenna 13, and the antenna 13 is placed in through hole and constitutes spacing, antenna therewith 13 ends are arranged in base 2, and the outer wall of base 2 has one to be used for Mine-used I. S wireless pressure collection biography with the same lateral position of antenna 13 The hook that defeated substation is fixed;Substation body includes mainboard, MAS205 interchangers, OLED module and BM200N concentrators, The other end being connected at WaveMesh modules, BM200N concentrators with mainboard and the end of antenna 13 are provided with BM200N concentrators It is connected and fixed thereto, mainboard includes MSP microcontrollers, memory module, RS485 modules, Ethernet to serial interface, ISO and adjusted Modulator-demodulator module, BM200N concentrators output end is connected with MSP microcontroller inputs, MSP microcontroller outputs difference Be connected with OLED module and memory module input, memory module output end respectively with ISO modem modules and RS485 moulds Block input is connected;ISO modem modules are connect by RJ11 communication interface output signals, RS485 modules by 485 communications Mouth 485 signals of output, mainboard is connected by Ethernet to serial interface with MAS205 interchangers, is constituted mainboard and is exchanged with MAS205 Machine is connected, and is contacted between the effect between its each module as follows:
MAS205 interchangers are used for signal optical fiber or network cable transmission to host computer.
OLED module is used for man-machine interaction, shows the communication information of substation.
Line bank is used to connect output line and input power.
BM200N concentrators are used to gather the wireless node apparatus data associated with substation.
The data that MSP430 microcontrollers are collected to BM200N concentrator modules carry out conversion processing.
Memory module is used to be stored the data collected.
The signal that RS485 modules are used to handle microcontroller is converted into 485 signals.
According to above-described embodiment, RJ11 interfaces are provided with ISO modem modules, ISO modem modules lead to RJ11 interfaces are crossed with binding post to be connected, MAS205 interchangers include RJ45 interfaces 2, RJ45 interfaces 3, SC single-mode fibers interface 1, SC single-mode fibers interface 2, Ethernet to serial interface includes RJ45 interfaces 1, MAS205 interchangers and ISO modem modules Between be made up of and be connected RJ45 interfaces 1 and RJ45 interfaces 2, and MAS205 interchangers pass through RJ45 interfaces 3 and binding post phase Even;MAS205 interchangers are made up of the upper and lower two-plies of MAS205, and RJ45 interfaces 2, RJ45 interfaces 3 and SC single-mode fibers interface 1 are set It is placed on MAS205 top plates, SC single-mode fibers interface 2 is arranged on MAS205 lower plywoods, Ethernet to serial interface is used ZNE-100TL Ethernet to serial interface, MAS205 interchangers be Ethernet switch MAS205, SC single-mode fiber interface 2 with SC single-mode fibers interface 1 is Ethernet optical port, and RJ45 interfaces 1, RJ45 interfaces 2 and RJ45 interfaces 3 are Ethernet power port.

Claims (10)

1. a kind of Mine-used I. S wireless pressure collection transmission substation, including casing, casing include protecgulum, substation body and bottom Seat, and substation body is internally formed a sealing cavity, its feature exists in base by the cooperation between protecgulum and base In:The substation body is included in mainboard, MAS205 interchangers, OLED module and BM200N concentrators, BM200N concentrators WaveMesh agreements are equipped with, mainboard includes MSP microcontrollers, memory module, RS485 modules, Ethernet to serial interface, ISO Modem module, the BM200N concentrators output end is connected with MSP microcontroller inputs, the output of MSP microcontrollers End be connected respectively with OLED module and memory module input, memory module output end respectively with ISO modem modules and RS485 module inputs are connected, and ISO modem modules are passed through by telephone wire communication interface output signal, RS485 modules 485 communication interfaces export 485 communication signals, and mainboard is connected by Ethernet to serial interface with MAS205 interchangers, constitute master Connection between plate and MAS205 interchangers.
2. substation is transmitted in Mine-used I. S wireless pressure collection according to claim 1, it is characterised in that:The ISO modulation RJ11 interfaces are provided with demodulator module, ISO modem modules are connected by RJ11 interfaces with binding post, described MAS205 interchangers include RJ45 interfaces 2, RJ45 interfaces 3, SC single-mode fibers interface 1, SC single-mode fibers interface 2, and Ethernet turns Serial port module includes RJ45 interfaces 1, passes through RJ45 interfaces 1 and RJ45 between MAS205 interchangers and ISO modem modules Interface 2 constitutes connection, and MAS205 interchangers are connected by RJ45 interfaces 3 with binding post.
3. Mine-used I. S wireless pressure collection transmission substation according to claim 1 or claim 2, it is characterised in that:The base Being provided with upper surface in a through hole, base also includes an antenna, and the antenna is placed in through hole and constitutes spacing, antenna end therewith End is arranged in base, and the other end being connected at BM200N concentrators with mainboard is connected and fixed thereto with antenna end.
4. Mine-used I. S wireless pressure collection transmission substation according to claim 1 or claim 2, it is characterised in that:The protecgulum On be provided with an observation window, be provided with below the observation window at operation button, operation button and a connecting line one end and operation be set The button back side be connected, the other end is connected with MSP microcontrollers, base outer wall and with its two sides formation left and right position pair Each module is made up of with extraneous each parts cable entry and is connected at the cable entry of title, the substation body.
5. substation is transmitted in Mine-used I. S wireless pressure collection according to claim 3, it is characterised in that:Set on the protecgulum An observation window is equipped with, is provided with below the observation window at operation button, operation button and a connecting line one end and operation button is set The back side be connected, the other end is connected with MSP microcontrollers, base outer wall and with its two sides formation left and right position it is symmetrical Each module is made up of with extraneous each parts cable entry and is connected at cable entry, the substation body.
6. Mine-used I. S wireless pressure collection transmission substation according to claim 1 or claim 2, it is characterised in that:It is described MAS205 interchangers are made up of the upper and lower two-plies of MAS205, and RJ45 interfaces 2, RJ45 interfaces 3 and SC single-mode fibers interface 1 are set In on MAS205 top plates, and SC single-mode fibers interface 2 is arranged on MAS205 lower plywoods.
7. substation is transmitted in Mine-used I. S wireless pressure collection according to claim 3, it is characterised in that:The MAS205 is handed over Change planes and be made up of the upper and lower two-plies of MAS205, RJ45 interfaces 2, RJ45 interfaces 3 and SC single-mode fibers interface 1 are arranged at MAS205 On top plate, and SC single-mode fibers interface 2 is arranged on MAS205 lower plywoods.
8. Mine-used I. S wireless pressure collection transmission substation according to claim 1 or claim 2, it is characterised in that:It is described MAS205 interchangers are made up of the upper and lower two-plies of MAS205, and RJ45 interfaces 2, RJ45 interfaces 3 and SC single-mode fibers interface 1 are set In on MAS205 top plates, and SC single-mode fibers interface 2 is arranged on MAS205 lower plywoods.
9. substation is transmitted in Mine-used I. S wireless pressure collection according to claim 4, it is characterised in that:The Ethernet turns Serial port module uses ZNE-100TL Ethernet to serial interface, and MAS205 interchangers are Ethernet switch MAS205, SC single mode Optical fiber interface 2 and SC single-mode fibers interface 1 are Ethernet optical port, RJ45 interfaces 1, RJ45 interfaces 2 and RJ45 interfaces 3 be with Too net power port.
10. substation is transmitted in Mine-used I. S wireless pressure collection according to claim 3, it is characterised in that:Outside the base Wall is provided with a hook with antenna same lateral position.
CN201710686102.7A 2017-08-11 2017-08-11 A kind of Mine-used I. S wireless pressure collection transmission substation Withdrawn CN107293104A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710686102.7A CN107293104A (en) 2017-08-11 2017-08-11 A kind of Mine-used I. S wireless pressure collection transmission substation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710686102.7A CN107293104A (en) 2017-08-11 2017-08-11 A kind of Mine-used I. S wireless pressure collection transmission substation

Publications (1)

Publication Number Publication Date
CN107293104A true CN107293104A (en) 2017-10-24

Family

ID=60105045

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710686102.7A Withdrawn CN107293104A (en) 2017-08-11 2017-08-11 A kind of Mine-used I. S wireless pressure collection transmission substation

Country Status (1)

Country Link
CN (1) CN107293104A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109141499A (en) * 2018-08-31 2019-01-04 沃德传动(天津)股份有限公司 A kind of Mine-used I. S transmission substation and its application method
CN116816441A (en) * 2023-06-02 2023-09-29 济南福深兴安科技有限公司 Optical fiber roof safety on-line monitoring system

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203308518U (en) * 2013-06-08 2013-11-27 史央春 Integrated monitoring system of mine pressure
CN203488212U (en) * 2013-08-19 2014-03-19 江西汇弘信息技术有限公司 Mining general type monitoring substation
CN104314615A (en) * 2014-09-03 2015-01-28 山西阳光三极科技有限公司 Mine safety monitoring system
CN104852836A (en) * 2015-04-22 2015-08-19 天地(常州)自动化股份有限公司 Comprehensive data acquisition substation for underground coal mine
CN207233186U (en) * 2017-08-11 2018-04-13 丰隆高科液压股份有限公司 A kind of Mine-used I. S wireless pressure collection transmission substation

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203308518U (en) * 2013-06-08 2013-11-27 史央春 Integrated monitoring system of mine pressure
CN203488212U (en) * 2013-08-19 2014-03-19 江西汇弘信息技术有限公司 Mining general type monitoring substation
CN104314615A (en) * 2014-09-03 2015-01-28 山西阳光三极科技有限公司 Mine safety monitoring system
CN104852836A (en) * 2015-04-22 2015-08-19 天地(常州)自动化股份有限公司 Comprehensive data acquisition substation for underground coal mine
CN207233186U (en) * 2017-08-11 2018-04-13 丰隆高科液压股份有限公司 A kind of Mine-used I. S wireless pressure collection transmission substation

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109141499A (en) * 2018-08-31 2019-01-04 沃德传动(天津)股份有限公司 A kind of Mine-used I. S transmission substation and its application method
CN116816441A (en) * 2023-06-02 2023-09-29 济南福深兴安科技有限公司 Optical fiber roof safety on-line monitoring system

Similar Documents

Publication Publication Date Title
CN201937603U (en) Electricity information acquisition system and concentrator
CN107291042A (en) A kind of remote control data communication system based on LIN buses
CN207233186U (en) A kind of Mine-used I. S wireless pressure collection transmission substation
CN107293104A (en) A kind of Mine-used I. S wireless pressure collection transmission substation
CN204168495U (en) A kind of plug type unified interface gateway based on radio sensing network
CN102739290A (en) Interactive terminal with power line carrier communication access function
CN207215940U (en) A kind of insulation monitoring and warning device of locating function with ground
CN2893978Y (en) Intelligent socket
CN205656752U (en) Electric wire netting communication device based on wireless sensor
CN201113374Y (en) Electrical power system microcomputer protecting measuring and controlling device based on double CPU structure
CN206894357U (en) A kind of distributed power source supervisory systems based on LoRa technologies
CN205192628U (en) Temperature monitoring device based on radio communication technique
CN205879238U (en) Environmental data gathers monitoring system based on CAN bus
CN201819954U (en) 0.5-level single-phase electronic energy meter
CN205071023U (en) Gateway equipment with dual controller
CN214337926U (en) Protocol conversion gateway device based on intelligent wireless transmission
CN201773148U (en) Multi-loop alternating-current acquisition unit
CN208479661U (en) A kind of explosion-proof industrial things-internet gateway
CN202094912U (en) Data collecting and managing system based on data transceiver communication
CN202998504U (en) Multifunctional wireless control intelligent gateway
CN202872774U (en) Interactive terminal with power line carrier communication access function
CN102419386A (en) 0.5-grade electronic type single-phase watt-hour meter
CN205644941U (en) With electric quantity collection and transmission device
CN206719001U (en) A kind of photovoltaic energy storage integrated charging station communication system
CN210895801U (en) Data transmission device of intelligent pressure monitoring hydraulic control one-way valve

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
WW01 Invention patent application withdrawn after publication
WW01 Invention patent application withdrawn after publication

Application publication date: 20171024