CN106506656A - A kind of data communication system based on electronic information technology - Google Patents
A kind of data communication system based on electronic information technology Download PDFInfo
- Publication number
- CN106506656A CN106506656A CN201611017811.8A CN201611017811A CN106506656A CN 106506656 A CN106506656 A CN 106506656A CN 201611017811 A CN201611017811 A CN 201611017811A CN 106506656 A CN106506656 A CN 106506656A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]
-
- 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
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Computing Systems (AREA)
- General Health & Medical Sciences (AREA)
- Medical Informatics (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The invention discloses a kind of data communication system based on electronic information technology, including main website, concentrator, harvester and Zigbee wireless sensor module, main website is communicated to connect between concentrator by GPRS wireless modules, concentrator connects Zigbee wireless sensor module and router, the harvester difference connection route device other end, the Zigbee wireless sensor module other end and multiple wireless sending modules respectively.Data communication system of the present invention based on electronic information technology is by using Zigbee wireless sensor module, using the 2.4GHz communications bands for exempting to apply, under non-routing condition, communication distance is up to 500m, the procotol adopted by which has tissue network, the automatically function such as route, network self-healing automatically, the communication issue between concentrator and harvester can be solved, the anti-interference problem of the electromagnetic compatibility problem and system of hardware is taken into full account in design, the stability of system operation is substantially increased, is suitable for promoting the use of.
Description
Technical field
The present invention relates to power domain, specifically a kind of data communication system based on electronic information technology.
Background technology
Traditional manual meter reading method is time-consuming, laborious and remote automatic meter reading system.Resident's automatic meter reading system
Have been developed more than ten years at home, but large scale application not yet at present, main cause have following some：
(1) have that wiring is inconvenient, easily affected by nature and anthropic factor using wired RS-485 buses or fieldbus and
The shortcomings of maintenance workload is big；(2) power line carrier communication mode is adopted between concentrator and harvester, due to nonlinear-load
A large amount of uses, particularly spread power line carrier signal to power line carrier and have a negative impact so as to which data transfer is unstable；
(3) traditional 430MHz radio communication systems, oneself making software is adopted to realize network route and net between concentrator and harvester
The communication protocol of network tissue, its Stability and dependability cannot be ensured.
Content of the invention
It is an object of the invention to provide a kind of employing Zigbee wireless sensor module based on electronic information technology
Data communication system, to solve the problems, such as to propose in above-mentioned background technology.
For achieving the above object, the present invention provides following technical scheme：
A kind of data communication system based on electronic information technology, including main website, concentrator, harvester and Zigbee wireless sensings
Device module, the main website are communicated to connect between concentrator by GPRS wireless modules, and concentrator connects Zigbee wireless sensings respectively
Device module and router, the harvester difference connection route device other end, the Zigbee wireless sensor module other end and many
Individual wireless sending module；The harvester includes controller A1, power module, infrared interface module and Zigbee interface modules,
Controller A1 connect respectively power module, infrared interface module, RS485 modules, Zigbee interface modules, detection of power loss module and
Clock memory module；The power module includes current rectifying and wave filtering circuit, LC filter circuits, DC/DC converter circuits and duty
Than control circuit, the current rectifying and wave filtering circuit includes rectifier bridge Q, resistance R2, resistance R1 and electric capacity C1, the LC filter circuits
Including inductance L1 and electric capacity C2, the DC/DC converter circuits include transformator T and diode D5, the Duty ratio control electricity
Road includes chip U1, electric capacity C15 and electric capacity C16；
The resistance R2 connects fuse FR, electric capacity C1 and rectifier bridge Q pin 2 respectively, and the resistance R2 other ends connect resistance respectively
R1, the electric capacity C1 other ends and rectifier bridge Q pin 4, the fuse FR other ends connection input A ends, the resistance R1 other ends
Connection input B ends, the rectifier bridge Q pin 1 connect electric capacity C2 and electric capacity C3 respectively and are grounded, and rectifier bridge Q pin 2 connects respectively
The electric capacity C2 other ends and inductance L1, the inductance L1 other ends connect the electric capacity C3 other ends, electric capacity C4, resistance R3, diode D5 respectively
Positive pole and transformator T coil L4, the electric capacity C4 other ends connect the resistance R3 other ends, diode D5 negative poles and diode respectively
D6 negative poles, the transformator T coil L4 other ends connect chip U1 pins 4, chip U1 pins 5 and diode D6 positive poles respectively,
The chip U1 pins 3 connect resistance R16 ~ R19 and chip U1 pins 6 respectively, and the chip U1 pins 2 connect electric capacity respectively
C17 and photoelectrical coupler U2 pins 1, the electric capacity C17 other ends connect respectively electric capacity C16, electric capacity C15, chip U1 pins 8,
Electric capacity C14, electric capacity C13 and inductance L3 are simultaneously grounded, and the electric capacity C16 other ends connect the electric capacity C15 other ends and chip U1 respectively
Pin 1, the inductance L3 other ends connect diode D11 positive poles, and diode D11 negative poles connect resistance R14 and resistance respectively
R15, the resistance R15 other end connects the electric capacity C13 other ends, the electric capacity C14 other ends and chip U1 pins 7, the resistance R16 respectively
The other end connects resistance R17 ~ R19 other ends and photoelectrical coupler U2 pins 2 respectively and is grounded, 3 points of photoelectrical coupler U2 pins
Not Lian Jie resistance R11 and resistance R12, the resistance R11 other ends connect photoelectrical coupler U2 pins 4, electric capacity C11 and controllable essence respectively
The K poles of close source of stable pressure TL431, the R poles of controllable accurate source of stable pressure TL431 connect resistance R10, resistance R9, resistance R8 and electricity respectively
Hold C10, the resistance R10 other ends connect the electric capacity C11 other ends, and the resistance R9 other ends connect controllable accurate voltage stabilizing respectively
The A poles of source TL431 and diode D12 positive poles are simultaneously grounded, the diode D12 negative poles connect respectively output C-terminal, resistance R7, two
Pole pipe D9 positive pole, the resistance R8 other ends, the electric capacity C10 other ends, resistance R5, electric capacity C9 and inductance L2, the inductance L2 other ends distinguish
Connection electric capacity C7, electric capacity C8, electric capacity C5, electric capacity C6, diode D7 negative poles, diode D8 negative poles, resistance R13 and diode D10
Negative pole, diode D10 positive poles connect the resistance R13 other ends and the resistance R12 other ends respectively, and the electric capacity C5 other ends connect respectively
The electric capacity C6 other ends and resistance R4 is met, the resistance R4 other ends connect diode D7 positive poles, diode D8 positive poles and transformator T respectively
Coil L5, the transformator T coil L5 other ends connect ground capacity C12, the electric capacity C7 other ends, the electric capacity C8 other ends, electric capacity respectively
The C9 other ends, the resistance R5 other ends, resistance R6, the resistance R7 other ends and output D ends, the resistance R6 other ends connect diode
D9 negative poles.
As further scheme of the invention：The harvester include controller A1, power module, infrared interface module and
Zigbee interface modules, controller A1 connect power module, infrared interface module, RS485 modules, Zigbee interface moulds respectively
Block, detection of power loss module and clock memory module.
As further scheme of the invention：The concentrator includes controller A2, switch value input interface and switching value
Output interface, connecting valve amount input interface, output switch parameter interface, GPRS wireless modules, Ethernet connect controller A2 respectively
Mouth mold block, RS485 interfaces 1, RS485 interfaces 2 and RS485 interfaces 3.
As further scheme of the invention：The controller A1 adopts chip PIC24FJ32.
As further scheme of the invention：The controller A2 adopts chip RCM6700.
As further scheme of the invention：Chip U1 models ICE3A0565, the photoelectrical coupler U2 types
Number be PC817D.
Compared with prior art, the invention has the beneficial effects as follows：Data transmission system of the present invention based on electronic information technology
System by using Zigbee wireless sensor module, using the 2.4GHz communications bands for exempting to apply, communicate under non-routing condition away from
From up to 500m, the procotol adopted by which has tissue network, the automatically function such as route, network self-healing automatically, it is possible to resolve
In design, communication issue between concentrator and harvester, takes into full account that the anti-interference of electromagnetic compatibility problem and system of hardware is asked
Topic, substantially increases the stability of system operation, is suitable for promoting the use of.
Description of the drawings
Fig. 1 is the circuit structure block diagram of the data communication system based on electronic information technology；
Fig. 2 is the circuit structure block diagram of harvester in data communication system based on electronic information technology；
Fig. 3 is the circuit structure block diagram of concentrator in data communication system based on electronic information technology；
Fig. 4 is the circuit diagram of power module in concentrator in data communication system based on electronic information technology.
Specific embodiment
Accompanying drawing in below in conjunction with the embodiment of the present invention, to the embodiment of the present invention in technical scheme carry out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiment.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Fig. 1～4 are referred to, in the embodiment of the present invention, a kind of data communication system based on electronic information technology, including master
Stand, concentrator, harvester and Zigbee wireless sensor module, the main website communicates to connect concentrator by GPRS wireless modules
Between, concentrator connects Zigbee wireless sensor module and router respectively, the harvester difference connection route device other end,
The Zigbee wireless sensor module other end and multiple wireless sending modules；The harvester include controller A1, power module,
Infrared interface module and Zigbee interface modules, controller A1 connect respectively power module, infrared interface module, RS485 modules,
Zigbee interface modules, detection of power loss module and clock memory module；The power module includes current rectifying and wave filtering circuit, LC filtering
Device circuit, DC/DC converter circuits and control circuit of duty ratio, the current rectifying and wave filtering circuit include rectifier bridge Q, resistance R2, electricity
Resistance R1 and electric capacity C1, the LC filter circuits include that inductance L1 and electric capacity C2, the DC/DC converter circuits include transformator
T and diode D5, the control circuit of duty ratio include chip U1, electric capacity C15 and electric capacity C16；
The resistance R2 connects fuse FR, electric capacity C1 and rectifier bridge Q pin 2 respectively, and the resistance R2 other ends connect resistance respectively
R1, the electric capacity C1 other ends and rectifier bridge Q pin 4, the fuse FR other ends connection input A ends, the resistance R1 other ends
Connection input B ends, the rectifier bridge Q pin 1 connect electric capacity C2 and electric capacity C3 respectively and are grounded, and rectifier bridge Q pin 2 connects respectively
The electric capacity C2 other ends and inductance L1, the inductance L1 other ends connect the electric capacity C3 other ends, electric capacity C4, resistance R3, diode D5 respectively
Positive pole and transformator T coil L4, the electric capacity C4 other ends connect the resistance R3 other ends, diode D5 negative poles and diode respectively
D6 negative poles, the transformator T coil L4 other ends connect chip U1 pins 4, chip U1 pins 5 and diode D6 positive poles respectively,
The chip U1 pins 3 connect resistance R16 ~ R19 and chip U1 pins 6 respectively, and the chip U1 pins 2 connect electric capacity respectively
C17 and photoelectrical coupler U2 pins 1, the electric capacity C17 other ends connect respectively electric capacity C16, electric capacity C15, chip U1 pins 8,
Electric capacity C14, electric capacity C13 and inductance L3 are simultaneously grounded, and the electric capacity C16 other ends connect the electric capacity C15 other ends and chip U1 respectively
Pin 1, the inductance L3 other ends connect diode D11 positive poles, and diode D11 negative poles connect resistance R14 and resistance respectively
R15, the resistance R15 other end connects the electric capacity C13 other ends, the electric capacity C14 other ends and chip U1 pins 7, the resistance R16 respectively
The other end connects resistance R17 ~ R19 other ends and photoelectrical coupler U2 pins 2 respectively and is grounded, 3 points of photoelectrical coupler U2 pins
Not Lian Jie resistance R11 and resistance R12, the resistance R11 other ends connect photoelectrical coupler U2 pins 4, electric capacity C11 and controllable essence respectively
The K poles of close source of stable pressure TL431, the R poles of controllable accurate source of stable pressure TL431 connect resistance R10, resistance R9, resistance R8 and electricity respectively
Hold C10, the resistance R10 other ends connect the electric capacity C11 other ends, and the resistance R9 other ends connect controllable accurate voltage stabilizing respectively
The A poles of source TL431 and diode D12 positive poles are simultaneously grounded, the diode D12 negative poles connect respectively output C-terminal, resistance R7, two
Pole pipe D9 positive pole, the resistance R8 other ends, the electric capacity C10 other ends, resistance R5, electric capacity C9 and inductance L2, the inductance L2 other ends distinguish
Connection electric capacity C7, electric capacity C8, electric capacity C5, electric capacity C6, diode D7 negative poles, diode D8 negative poles, resistance R13 and diode D10
Negative pole, diode D10 positive poles connect the resistance R13 other ends and the resistance R12 other ends respectively, and the electric capacity C5 other ends connect respectively
The electric capacity C6 other ends and resistance R4 is met, the resistance R4 other ends connect diode D7 positive poles, diode D8 positive poles and transformator T respectively
Coil L5, the transformator T coil L5 other ends connect ground capacity C12, the electric capacity C7 other ends, the electric capacity C8 other ends, electric capacity respectively
The C9 other ends, the resistance R5 other ends, resistance R6, the resistance R7 other ends and output D ends, the resistance R6 other ends connect diode
D9 negative poles.The harvester includes controller A1, power module, infrared interface module and Zigbee interface modules, controller A1
Connection power module, infrared interface module, RS485 modules, Zigbee interface modules, detection of power loss module and clock storage respectively
Module.The concentrator includes that controller A2, switch value input interface and output switch parameter interface, controller A2 connect out respectively
Pass amount input interface, output switch parameter interface, GPRS wireless modules, ethernet interface module, RS485 interfaces 1, RS485 interfaces 2
With RS485 interfaces 3.The controller A1 adopts chip PIC24FJ32.The controller A2 adopts chip RCM6700.The core
Piece U1 models ICE3A0565, photoelectrical coupler U2 models PC817D.
The present invention operation principle be：System is by main website and wireless sending module, harvester, router and concentrator structure
Into, the communication mode between main website and each concentrator is GPRS, adopts Zigbee wireless sensor module between concentrator and harvester,
Router plays the effect of data route between concentrator and harvester, logical using RS-485 buses between harvester and wireless sending module
Letter.
System main website is may be provided at Property Management of residence or Utilities Electric Co. building using switching Ethernet networking, main
Stand, wherein preposition logical
The application of letter machine configures fixed ip address, and the 2M optical fiber DDN special lines provided using mobile operator, with GPRS wireless communication modules
Be connected, preposition communication equipment and each concentrator carry out bidirectional data communication, preposition communication equipment receive the electric flux that concentrator sends and
Related data, unloading after parsing enter data server, can also send a command to each concentrator, and preposition communication equipment is also realized to each
The remote maintenance of concentrator, Web server realize the Homepage Publishing of data, reach in systematic analysiss result data Utilities Electric Co. altogether
The purpose that enjoys, data server are used for storing history data, and are analyzed and count, and data server is also realized to concentrating
The complete and accurate management of the machine account such as device, harvester and intelligent electric energy meter, resident, work station are realized to main station system and concentration
Device and the maintenance work of harvester, also can check, manage the relevant data of main station system in which have permission, and system during gps satellite pair is real
The existing concordance and correctness of each wireless sending module, harvester, concentrator and main station system time, there is provided electric energy data with
The guarantee of when property, substantially increases the stability of system operation.
Claims (5)
1. a kind of data communication system based on electronic information technology, wirelessly passes including main website, concentrator, harvester and Zigbee
Sensor module, it is characterised in that the main website is communicated to connect between concentrator by GPRS wireless modules, and concentrator connects respectively
Zigbee wireless sensor module and router, the harvester difference connection route device other end, Zigbee wireless sensor
The module other end and multiple wireless sending modules；The harvester include controller A1, power module, infrared interface module and
Zigbee interface modules, controller A1 connect power module, infrared interface module, RS485 modules, Zigbee interface moulds respectively
Block, detection of power loss module and clock memory module；The power module includes current rectifying and wave filtering circuit, LC filter circuits, DC/DC
Converter circuit and control circuit of duty ratio, the current rectifying and wave filtering circuit include rectifier bridge Q, resistance R2, resistance R1 and electric capacity C1,
The LC filter circuits include that inductance L1 and electric capacity C2, the DC/DC converter circuits include transformator T and diode D5,
The control circuit of duty ratio includes chip U1, electric capacity C15 and electric capacity C16；
The resistance R2 connects fuse FR, electric capacity C1 and rectifier bridge Q pin 2 respectively, and the resistance R2 other ends connect resistance respectively
R1, the electric capacity C1 other ends and rectifier bridge Q pin 4, the fuse FR other ends connection input A ends, the resistance R1 other ends
Connection input B ends, the rectifier bridge Q pin 1 connect electric capacity C2 and electric capacity C3 respectively and are grounded, and rectifier bridge Q pin 2 connects respectively
The electric capacity C2 other ends and inductance L1, the inductance L1 other ends connect the electric capacity C3 other ends, electric capacity C4, resistance R3, diode D5 respectively
Positive pole and transformator T coil L4, the electric capacity C4 other ends connect the resistance R3 other ends, diode D5 negative poles and diode respectively
D6 negative poles, the transformator T coil L4 other ends connect chip U1 pins 4, chip U1 pins 5 and diode D6 positive poles respectively,
The chip U1 pins 3 connect resistance R16 ~ R19 and chip U1 pins 6 respectively, and the chip U1 pins 2 connect electric capacity respectively
C17 and photoelectrical coupler U2 pins 1, the electric capacity C17 other ends connect respectively electric capacity C16, electric capacity C15, chip U1 pins 8,
Electric capacity C14, electric capacity C13 and inductance L3 are simultaneously grounded, and the electric capacity C16 other ends connect the electric capacity C15 other ends and chip U1 respectively
Pin 1, the inductance L3 other ends connect diode D11 positive poles, and diode D11 negative poles connect resistance R14 and resistance respectively
R15, the resistance R15 other end connects the electric capacity C13 other ends, the electric capacity C14 other ends and chip U1 pins 7, the resistance R16 respectively
The other end connects resistance R17 ~ R19 other ends and photoelectrical coupler U2 pins 2 respectively and is grounded, 3 points of photoelectrical coupler U2 pins
Not Lian Jie resistance R11 and resistance R12, the resistance R11 other ends connect photoelectrical coupler U2 pins 4, electric capacity C11 and controllable essence respectively
The K poles of close source of stable pressure TL431, the R poles of controllable accurate source of stable pressure TL431 connect resistance R10, resistance R9, resistance R8 and electricity respectively
Hold C10, the resistance R10 other ends connect the electric capacity C11 other ends, and the resistance R9 other ends connect controllable accurate voltage stabilizing respectively
The A poles of source TL431 and diode D12 positive poles are simultaneously grounded, the diode D12 negative poles connect respectively output C-terminal, resistance R7, two
Pole pipe D9 positive pole, the resistance R8 other ends, the electric capacity C10 other ends, resistance R5, electric capacity C9 and inductance L2, the inductance L2 other ends distinguish
Connection electric capacity C7, electric capacity C8, electric capacity C5, electric capacity C6, diode D7 negative poles, diode D8 negative poles, resistance R13 and diode D10
Negative pole, diode D10 positive poles connect the resistance R13 other ends and the resistance R12 other ends respectively, and the electric capacity C5 other ends connect respectively
The electric capacity C6 other ends and resistance R4 is met, the resistance R4 other ends connect diode D7 positive poles, diode D8 positive poles and transformator T respectively
Coil L5, the transformator T coil L5 other ends connect ground capacity C12, the electric capacity C7 other ends, the electric capacity C8 other ends, electric capacity respectively
The C9 other ends, the resistance R5 other ends, resistance R6, the resistance R7 other ends and output D ends, the resistance R6 other ends connect diode
D9 negative poles.
2. the data communication system based on electronic information technology according to claim 1, it is characterised in that the concentrator
Including controller A2, switch value input interface and output switch parameter interface, controller A2 respectively connecting valve amount input interface, open
Pass amount output interface, GPRS wireless modules, ethernet interface module, RS485 interfaces 1, RS485 interfaces 2 and RS485 interfaces 3.
3. the data communication system based on electronic information technology according to claim 2, it is characterised in that the controller
A1 adopts chip PIC24FJ32.
4. the data communication system based on electronic information technology according to claim 3, it is characterised in that the controller
A2 adopts chip RCM6700.
5. the data communication system based on electronic information technology according to claim 1, it is characterised in that the chip U1
Model ICE3A0565, photoelectrical coupler U2 models PC817D.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611017811.8A CN106506656A (en) | 2016-11-20 | 2016-11-20 | A kind of data communication system based on electronic information technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611017811.8A CN106506656A (en) | 2016-11-20 | 2016-11-20 | A kind of data communication system based on electronic information technology |
Publications (1)
| Publication Number | Publication Date |
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| CN106506656A true CN106506656A (en) | 2017-03-15 |
Family
ID=58324819
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611017811.8A Withdrawn CN106506656A (en) | 2016-11-20 | 2016-11-20 | A kind of data communication system based on electronic information technology |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107065714A (en) * | 2017-06-18 | 2017-08-18 | 合肥讯邦网络科技有限公司 | A kind of smart electronicses communication system |
| CN107168229A (en) * | 2017-06-16 | 2017-09-15 | 合肥讯邦网络科技有限公司 | A kind of wireless communication control system |
| CN110136416A (en) * | 2019-04-29 | 2019-08-16 | 湖南沛科交通工程技术股份有限公司 | Wireless collection device, control system and control method including the wireless collection device |
| CN110138717A (en) * | 2018-02-02 | 2019-08-16 | 钟国诚 | For transmitting the electronic device and method of electronic data |
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| CN204103770U (en) * | 2014-10-17 | 2015-01-14 | 惠州聆韵科技有限公司 | A kind of mobile phone small-power switching power-supply circuit |
| CN204480460U (en) * | 2015-01-21 | 2015-07-15 | 黄鉴昆 | A kind of wireless automatic meter recording system |
| CN105894778A (en) * | 2016-05-27 | 2016-08-24 | 成都知人善用信息技术有限公司 | Periodic meter-reading system based on broadcasting and television network |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN204103770U (en) * | 2014-10-17 | 2015-01-14 | 惠州聆韵科技有限公司 | A kind of mobile phone small-power switching power-supply circuit |
| CN204480460U (en) * | 2015-01-21 | 2015-07-15 | 黄鉴昆 | A kind of wireless automatic meter recording system |
| CN105894778A (en) * | 2016-05-27 | 2016-08-24 | 成都知人善用信息技术有限公司 | Periodic meter-reading system based on broadcasting and television network |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107168229A (en) * | 2017-06-16 | 2017-09-15 | 合肥讯邦网络科技有限公司 | A kind of wireless communication control system |
| CN107065714A (en) * | 2017-06-18 | 2017-08-18 | 合肥讯邦网络科技有限公司 | A kind of smart electronicses communication system |
| CN110138717A (en) * | 2018-02-02 | 2019-08-16 | 钟国诚 | For transmitting the electronic device and method of electronic data |
| CN110138717B (en) * | 2018-02-02 | 2020-10-30 | 钟国诚 | Electronic device and method for transferring electronic data |
| CN110136416A (en) * | 2019-04-29 | 2019-08-16 | 湖南沛科交通工程技术股份有限公司 | Wireless collection device, control system and control method including the wireless collection device |
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Application publication date: 20170315 |