CN107422675A - A kind of Internet of Things programmable power supply monitoring system and method - Google Patents
A kind of Internet of Things programmable power supply monitoring system and method Download PDFInfo
- Publication number
- CN107422675A CN107422675A CN201710772741.5A CN201710772741A CN107422675A CN 107422675 A CN107422675 A CN 107422675A CN 201710772741 A CN201710772741 A CN 201710772741A CN 107422675 A CN107422675 A CN 107422675A
- Authority
- CN
- China
- Prior art keywords
- power supply
- module
- monitoring
- internet
- monitored
- 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.)
- Pending
Links
- 238000012544 monitoring process Methods 0.000 title claims abstract description 62
- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000012360 testing method Methods 0.000 claims abstract description 28
- 238000004891 communication Methods 0.000 claims abstract description 17
- 238000004458 analytical method Methods 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 7
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 238000005070 sampling Methods 0.000 claims description 5
- 230000015556 catabolic process Effects 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 4
- 230000004087 circulation Effects 0.000 claims description 3
- 241001269238 Data Species 0.000 claims description 2
- 230000004888 barrier function Effects 0.000 claims description 2
- 238000012545 processing Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 2
- 238000007599 discharging Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000012795 verification Methods 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 230000001839 systemic circulation Effects 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000002789 length control Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
A kind of Internet of Things programmable power supply monitoring system and method, system includes host computer, middle-position machine, some programmable power supply monitoring modules, the host computer connects with middle-position machine communication, the middle-position machine connects with programmable power supply monitoring module communication, and the programmable power supply monitoring module includes auxiliary power module, MCU module, ADC, DAC module, power failure data memory module, communication module, energy supply control module；The MCU module is connected with the auxiliary power module, the MCU module, the ADC, the DAC module, the power failure data memory module, the communication module, the energy supply control module respectively；Technical scheme provided by the invention can be monitored in real time to power supply, and access Internet of Things and realize the whole cabinet control of power supply, so as to realize while carry out charge-discharge test to multiple batteries, improve battery production capacity, reduce production cost, the effect of realizing convenient management, and realized by Internet of Things to multiple Digital Controls for testing power supplys and monitoring.
Description
" technical field "
The invention belongs to Power Supply Monitoring field, more particularly to a kind of Internet of Things programmable power supply monitoring system and method.
" background technology "
With the development of society, battery is widely used in daily life.Now no matter lithium battery, lead-acid battery, ternary
Battery etc., it is both needed to carry out charge-discharge test in process of production to ensure battery quality and uniformity；Existing battery charging and discharging is surveyed
The power supply for trying to use needs single setting, and carries out digital independent one by one after the completion of test；If event occurs for some power supply
Barrier can not be found the very first time, it will bring huge trouble to production.
So be security, the yield rate of the battery that ensures to dispatch from the factory, battery charging and discharging test is in cell production process to closing
Process that is important, and wasting time and energy.For existing battery charging and discharging tests power supply, it be able to will must only be surveyed by individually controlling
Trial work step is respectively sent to be tested on each power supply, again takes out test data after the completion of to be tested and is analyzed.It is existing
Technical scheme is run using singlechip technology according to the work step set in advance, and specific electricity is exported using PWM technical controllings power supply
Current voltage or control battery using the real-time monitoring voltage current data of ADC and preserve to conductive discharge.It will supervise in real time
The voltage x current data of survey carry out analysis and draw the parameters such as power, capacity, and preserve relevant parameter completion to be tested and take out.
Wherein, it is the shortcomings that prior art as battery requirements increase, it is high to capacity requirements；But battery charge and discharge
Electrical testing is cumbersome and important in cell production process, and so big quantity can only in the case of existing single charge-discharge test
Sampling observation is realized, necessarily causes qualification rate to reduce, this image to battery enterprise is undoubtedly a kind of injury.
" content of the invention "
To solve problem above, the present invention provides a kind of Internet of Things programmable power supply monitoring system and method, from improve production capacity,
Cost, convenient management etc. is reduced to set out；Power supply is monitored in real time, and accesses Internet of Things and realizes the whole cabinet control of power supply,
So as to realize while carry out charge-discharge test to multiple batteries；Concrete technical scheme is as follows：
A kind of Internet of Things programmable power supply monitoring system, including host computer, middle-position machine, some programmable power supply monitoring modules, institute
State host computer to connect with middle-position machine communication, the middle-position machine connects with programmable power supply monitoring module communication；The journey
Control Power Monitoring Unit includes：
Auxiliary power module, working power is provided for whole programmable power supply monitoring module；
MCU module, perform signal and data processing；
ADC, its input connect the amplitude control signal output end of MCU module, the monitored power supply of output end connection
Charging/discharging voltage and current amplitude control terminal；
Energy supply control module, its input connect the operating mode control signals output end of MCU module, output end connection quilt
Monitor the mode of operation control terminal of power supply；
DAC module, the electric current of the monitored power supply of its input connection, voltage sampling port, output end connection MCU module are adopted
Sample signal input part；
Communication module, MCU module and middle-position machine communication are connected；
Power failure data memory module, it is connected with MCU reading and writing datas end.
As specific technical scheme, the host computer is connected with the middle-position machine wireless telecommunications.
As specific technical scheme, the middle-position machine is connected with the programmable power supply monitoring module by CAN or RS485
Connect.
A kind of method for monitoring power supply based on above-mentioned Internet of Things programmable power supply monitoring system, comprises the following steps：
System and peripheral hardware initialization, energy supply control module is by the monitored power work of system command control in specified work
Pattern, by voltage, the electric current of the monitored power supply output designated magnitude of system command control, ADC gathers monitored DAC module
The voltage and current information of power supply actual motion；
Section circulation performs data calculating, and the capacity to being monitored in power supply charge and discharge process to MCU module at preset timed intervals
Data, energy datum are added up；
The data that the system is fed back according to the MCU module judge whether performing mode of operation command analysis,
DAC module controls, and is accordingly to perform, does not otherwise perform；
During monitoring, the power failure data memory module periodically preserves real time data.
As specific technical scheme, the preset time period is specially 90ms.
As specific technical scheme, ceased and desisted order if the command analysis receives, be operation mould in test power supply
Test power supply is stopped during formula, corresponding data are returned again to after Chu Liwan.
As specific technical scheme, if the system finds that deviation occur in voltage or electric current in monitoring process, institute
State DAC module control voltage, electric current reaches stationary value.
As specific technical scheme, if being monitored in monitoring process, power supply breaks down or power down, the system exist
After fixing a breakdown or re-powering, corresponding data is read in the power failure data memory module and is continued to current test battery
Carry out charge-discharge test.
Internet of Things programmable power supply monitoring system and method provided by the invention, power supply can be monitored in real time, and connect
Enter Internet of Things and realize the whole cabinet control of power supply, therefore can realize while charge-discharge test is carried out to multiple batteries, improve indirectly
Battery production capacity, production cost is reduced, the effect of realizing convenient management, the numerals to multiple test power supplys are realized by Internet of Things
Change control and monitoring.
" brief description of the drawings "
Fig. 1 is the main block diagram of Internet of Things programmable power supply monitoring system provided by the invention.
Fig. 2 is the composition block diagram of program control Power Monitoring Unit in Internet of Things programmable power supply monitoring system provided by the invention.
Fig. 3 is the main flow chart of Internet of Things programmable power supply monitoring method provided by the invention.
Fig. 4 is the flow chart of an embodiment of Internet of Things programmable power supply monitoring method provided by the invention.
" embodiment "
The embodiment of the present invention is described further below in conjunction with the accompanying drawings：
As shown in figure 1, the Internet of Things programmable power supply monitoring system that the present embodiment provides is made up of three bulks, it is upper respectively
Machine, middle-position machine and some programmable power supply monitoring modules.Host computer perform Data Analysis Services, control command generation and issue,
And human-computer interaction interface is provided, the running status of programmable power supply monitoring module is program control in running by PC control
The real time data collected is uploaded to host computer by Power Monitoring Unit through middle-position machine, and is shown after being handled by host computer, middle position
Machine plays switching and the function of expanding wherein.In the present embodiment, host computer is connected by way of wireless telecommunications with middle-position machine,
Middle-position machine is connected with programmable power supply monitoring module by CAN or RS485.
As shown in Fig. 2 programmable power supply monitoring module includes：Auxiliary power module, MCU module (main control chip), ADC
(analog-to-digital conversion module), DAC module (D/A converter module), power failure data memory module, communication module, energy supply control module；
Wherein, auxiliary power module provides working power for whole programmable power supply monitoring module；MCU module passes through communication module and middle position
Machine communication connection, the work step order sent according to host computer are run；MCU module is controlled by DAC module and energy supply control module
The charge and discharge electricity output of power supply, specifically, the amplitude of power supply output is controlled by DAC module, by energy supply control module according to MCU
The pattern of the low and high level control power work of module I O mouths output；MCU module by ADC in real time the voltage to power supply,
Electric current is acquired, and the data gathered are analyzed and the data including power, power supply capacity are calculated, and will
It is uploaded to host computer；The preservation per second during power supply testing results are tested of power failure data memory module once counts in real time
According to, it is ensured that test power supply break down or power down after data will not lose, so as to still can be after after fixing a breakdown or re-powering
It is continuous that charge-discharge test is continued to current test battery；Programmable power supply monitoring system is carried out real by communication module and middle-position machine
When communicate, host computer again from middle-position machine obtain programmable power supply monitoring data analyzed and shown, so as to realize to whole cabinet
Battery charging and discharging is tested.
As shown in figure 3, the method for monitoring power supply based on above-mentioned Internet of Things programmable power supply monitoring system, including：
System and peripheral hardware initialization, energy supply control module is by the monitored power work of system command control in specified work
Pattern, by voltage, the electric current of the monitored power supply output designated magnitude of system command control, ADC gathers monitored DAC module
The voltage and current information of power supply actual motion；
Section circulation performs data calculating, and the capacity to being monitored in power supply charge and discharge process to MCU module at preset timed intervals
Data, energy datum are added up；
The data that the system is fed back according to the MCU module judge whether performing mode of operation command analysis,
DAC module controls, and is accordingly to perform, does not otherwise perform；
During monitoring, the power failure data memory module periodically preserves real time data.
During above-mentioned method for monitoring power supply specific implementation, coding protocol, programming, idiographic flow and data knot need to be related to
Several aspects such as structure design, are illustrated separately below：
1st, coding protocol：
The test protocol of above-mentioned programmable power supply monitoring system is programmed using C language, on the basis of RS-485 link layers certainly
Agreement is defined, protocol format is as shown in the table：
| Synchronization character | Serial port | Device number | Data length | Control Cooling | Data field | Verification | End mark |
| 0xAB | 1~8 | 1~10/0x33 | n | Command code | n | CRC check | 0x11 |
Synchronization character：0xAB, order beginning, the starting as order.
Serial port：1~8, the RS-485 Bus numbers that expression middle-position machine is managed, most 8.
Device number：1~10, RS-485 slave addresses are represented, shown herein as programmable power supply monitored address；0x33：Represent wide
Order is broadcast, programmable power supply monitoring is not responded.
Control Cooling：The control command code that host computer issues.
Verification：To the verification data at last calculating of data field since synchronization character.
End mark：0x11, order ending, represent that order terminates.
2nd, the programming based on above-mentioned protocol format is as follows：
Programming is based on sequential organization, systemic circulation sequential processes power supply, embedded interrupt service routine.Program is simultaneously adopted
Designed with delamination modularization, including driving layer and application layer.
Driving layer refers mainly to master clock, interruption, IO, timer and the peripheral chip driving of main control chip, application layer master
Refer to the given output of ADC sampling filters, DAC, RS-485 orders transmission and parsing etc..
Programmable power supply monitoring programme circulates between ADC is sampled, DAC is given, mode of operation is handled, after interruption is produced at once
Perform interrupt service routine.Data are received as being immediately performed interrupt service routine if receiving serial ports and interrupting, pending data receives
Complete to return in systemic circulation and perform command analysis, perform and order and return response.
3rd, specific program flow diagram is shown in Figure 4, wherein：
System initialization, peripheral hardware initialization initialize to main control chip running environment, then peripheral chip are entered first
Row initialization, is used when being performed so as to programmable power supply monitoring programme.
ADC gathers the voltage of power supply actual motion and current value, and is converted to data signal.It is and actual calculating
Changed in value module, be converted to actual voltage, the magnitude of current.
Calculate the data such as capacity, energy to perform once per 90ms, the capacity in charge and discharge process, energy are added up.
Command analysis is the control command that will be received in host computer, and corresponding operation is performed according to agreement.Such as receive
Cease and desist order, then power supply is stopped when power supply is operational mode, corresponding data are returned again to after Chu Liwan.
The order control power supply that DAC module issues according to host computer exports given voltage, electric current, in power supply running
If it was found that deviation occur in voltage or electric current, DAC module control voltage, electric current reach stationary value.
Power failure data memory module real time data of preservation per second during power supply testing results are tested, it is ensured that
Test power supply break down or power down after data will not lose, to may continue to survey after fixing a breakdown or re-powering to current
Examination battery continues charge-discharge test.
4th, Data Structure Design：
It is as follows according to being programmed to define shared data structure between modules：
RS-485 communication structure bodies：
Status data structure：
Above example be only it is fully open is not intended to limit the present invention, all creation purports based on the present invention, without creating
Property work equivalence techniques feature replacement, should be considered as the application exposure scope.
Claims (8)
1. a kind of Internet of Things programmable power supply monitoring system, it is characterised in that including host computer, middle-position machine, some programmable power supplys prison
Module is controlled, the host computer connects with middle-position machine communication, and the middle-position machine connects with programmable power supply monitoring module communication
Connect；The programmable power supply monitoring module includes：
Auxiliary power module, working power is provided for whole programmable power supply monitoring module；
MCU module, perform signal and data processing；
ADC, its input connect the amplitude control signal output end of MCU module, and the output end monitored power supply of connection fills
Discharge voltage and current amplitude control terminal；
Energy supply control module, its input connect the operating mode control signals output end of MCU module, and output end connection is monitored
The mode of operation control terminal of power supply；
DAC module, the electric current of the monitored power supply of its input connection, voltage sampling port, the sampling letter of output end connection MCU module
Number input；
Communication module, MCU module and middle-position machine communication are connected；
Power failure data memory module, it is connected with MCU reading and writing datas end.
2. Internet of Things programmable power supply monitoring system according to claim 1, it is characterised in that the host computer with it is described in
Position machine wireless telecommunications connection.
3. Internet of Things programmable power supply monitoring system according to claim 1, it is characterised in that the middle-position machine and the journey
Control Power Monitoring Unit passes through CAN or RS485 connections.
A kind of 4. method for monitoring power supply based on Internet of Things programmable power supply monitoring system described in claim 1, it is characterised in that bag
Include following steps：
System and peripheral hardware initialization, energy supply control module is by the monitored power work of system command control in specified Working mould
Formula, DAC module is by voltage, the electric current of the monitored power supply output designated magnitude of system command control, the monitored electricity of ADC collection
The voltage and current information of source actual motion；
Section circulation execution data calculate MCU module at preset timed intervals, and the capacity data to being monitored in power supply charge and discharge process,
Energy datum is added up；
The data that the system is fed back according to the MCU module carry out judging whether to perform mode of operation command analysis, DAC moulds
Block controls, and is accordingly to perform, does not otherwise perform；
During monitoring, the power failure data memory module periodically preserves real time data.
5. method for monitoring power supply according to claim 4, it is characterised in that the preset time period is specially 90ms.
6. method for monitoring power supply according to claim 4, it is characterised in that if the command analysis receives stopping life
Order, then test power supply is stopped when testing power supply and being operational mode, corresponding data are returned again to after Chu Liwan.
7. method for monitoring power supply according to claim 4, it is characterised in that if the system finds electricity in monitoring process
There is deviation in pressure or electric current, then the DAC module control voltage, electric current reach stationary value.
8. method for monitoring power supply according to claim 4, it is characterised in that if power supply is monitored in monitoring process event occurs
Barrier or power down, then the system read respective counts in the power failure data memory module after fixing a breakdown or re-powering
According to and continue to carry out charge-discharge test to current test battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710772741.5A CN107422675A (en) | 2017-08-31 | 2017-08-31 | A kind of Internet of Things programmable power supply monitoring system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710772741.5A CN107422675A (en) | 2017-08-31 | 2017-08-31 | A kind of Internet of Things programmable power supply monitoring system and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107422675A true CN107422675A (en) | 2017-12-01 |
Family
ID=60434309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710772741.5A Pending CN107422675A (en) | 2017-08-31 | 2017-08-31 | A kind of Internet of Things programmable power supply monitoring system and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107422675A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114691493A (en) * | 2022-02-28 | 2022-07-01 | 福建星云电子股份有限公司 | Lithium battery testing method and system |
| CN114720894A (en) * | 2022-02-28 | 2022-07-08 | 福建星云检测技术有限公司 | Battery charging and discharging test continuing method and system |
| CN116360377A (en) * | 2023-06-01 | 2023-06-30 | 深圳和润达科技有限公司 | Data processing method for battery cell formation component capacity and distributed control system |
| CN117193148A (en) * | 2023-11-08 | 2023-12-08 | 微纳动力(北京)科技有限责任公司 | Median machine control system for single cell screening of photoelectric tweezers |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101650411A (en) * | 2009-07-31 | 2010-02-17 | 迈普通信技术股份有限公司 | Universal power-aging testing system |
| CN201436591U (en) * | 2009-05-13 | 2010-04-07 | 东莞市冠佳电子设备有限公司 | A voltage current monitoring system applied to power ageing test |
| CN101762800A (en) * | 2010-01-28 | 2010-06-30 | 北京航空航天大学 | Battery managing system testing platform |
| CN203278397U (en) * | 2013-05-15 | 2013-11-06 | 四川创宏电气有限公司 | Electric power supply monitoring system enabling remote control |
| CN203433095U (en) * | 2013-07-15 | 2014-02-12 | 威凯检测技术有限公司 | Program control type power battery heavy-current short circuit testing apparatus |
| CN103869260A (en) * | 2012-12-13 | 2014-06-18 | 中兴通讯股份有限公司 | Power supply test system and method |
| CN106324506A (en) * | 2015-06-17 | 2017-01-11 | 炬才微电子（深圳）有限公司 | Embedded equipment battery test method, device and system |
| CN207198599U (en) * | 2017-08-31 | 2018-04-06 | 广东科学技术职业学院 | A kind of Internet of Things programmable power supply monitoring system |
-
2017
- 2017-08-31 CN CN201710772741.5A patent/CN107422675A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201436591U (en) * | 2009-05-13 | 2010-04-07 | 东莞市冠佳电子设备有限公司 | A voltage current monitoring system applied to power ageing test |
| CN101650411A (en) * | 2009-07-31 | 2010-02-17 | 迈普通信技术股份有限公司 | Universal power-aging testing system |
| CN101762800A (en) * | 2010-01-28 | 2010-06-30 | 北京航空航天大学 | Battery managing system testing platform |
| CN103869260A (en) * | 2012-12-13 | 2014-06-18 | 中兴通讯股份有限公司 | Power supply test system and method |
| CN203278397U (en) * | 2013-05-15 | 2013-11-06 | 四川创宏电气有限公司 | Electric power supply monitoring system enabling remote control |
| CN203433095U (en) * | 2013-07-15 | 2014-02-12 | 威凯检测技术有限公司 | Program control type power battery heavy-current short circuit testing apparatus |
| CN106324506A (en) * | 2015-06-17 | 2017-01-11 | 炬才微电子（深圳）有限公司 | Embedded equipment battery test method, device and system |
| CN207198599U (en) * | 2017-08-31 | 2018-04-06 | 广东科学技术职业学院 | A kind of Internet of Things programmable power supply monitoring system |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114691493A (en) * | 2022-02-28 | 2022-07-01 | 福建星云电子股份有限公司 | Lithium battery testing method and system |
| CN114720894A (en) * | 2022-02-28 | 2022-07-08 | 福建星云检测技术有限公司 | Battery charging and discharging test continuing method and system |
| CN116360377A (en) * | 2023-06-01 | 2023-06-30 | 深圳和润达科技有限公司 | Data processing method for battery cell formation component capacity and distributed control system |
| CN116360377B (en) * | 2023-06-01 | 2023-08-29 | 深圳和润达科技有限公司 | Data processing method for battery cell formation component capacity and distributed control system |
| CN117193148A (en) * | 2023-11-08 | 2023-12-08 | 微纳动力(北京)科技有限责任公司 | Median machine control system for single cell screening of photoelectric tweezers |
| CN117193148B (en) * | 2023-11-08 | 2024-02-02 | 微纳动力(北京)科技有限责任公司 | Median machine control system for single cell screening of photoelectric tweezers |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107422675A (en) | A kind of Internet of Things programmable power supply monitoring system and method | |
| CN105911475A (en) | Power pack testing system | |
| CN102122431A (en) | Method and system for intelligently diagnosing faults of electricity information collection terminal | |
| CN110716145A (en) | Intelligent battery testing system and testing method based on Internet of things | |
| CN204790554U (en) | Bus controller quality testing arrangement based on car CAN network bus | |
| CN105207836A (en) | Method for quickly testing consistency of PQDIF (Power Quality Data Interchange Format) files | |
| CN207198599U (en) | A kind of Internet of Things programmable power supply monitoring system | |
| CN101820356A (en) | Network fault diagnosis system based on ARM-Linux | |
| CN104579164A (en) | Method, device and system for monitoring performance of photovoltaic energy storage system | |
| CN209823786U (en) | Portable photovoltaic equipment communication simulator | |
| CN116865445A (en) | Three-dimensional multifunctional combined optical storage control system and optical storage collaborative integrated terminal | |
| CN104795796A (en) | Motor fault monitoring device and method of intelligent ring main unit | |
| CN105739666A (en) | Conversion method for reducing power consumption and computing apparatus using the same | |
| CN109143084A (en) | A kind of storage batteries of transformer substation group state collecting device based on WLAN technology | |
| CN206470591U (en) | Cotton spinning production control system based on PROFIBUS fieldbus | |
| CN210090982U (en) | Intelligent distributed DTU testing device | |
| Fan et al. | Research on remote meter reading scheme and IoT smart energy meter based on NB-IoT technology | |
| CN102749914B (en) | Wind energy turbine set booster stations supervisory system and AVC function In-situ test system and implementation method | |
| Wang et al. | Analysis of application of plc technology in automation control of electrical engineering | |
| CN202770921U (en) | Wind farm AGC and AVC function in-situ testing system | |
| CN210745165U (en) | Automatic test system for radio frequency signaling of communication module | |
| CN101867957B (en) | Intelligent debugging platform system and debugging method for wireless communication system | |
| CN208818815U (en) | Motor vehicle power battery test macro | |
| CN203313211U (en) | Automatic startup and shutdown detection system for router | |
| CN207650610U (en) | A kind of mahjong machine system with wireless communication function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171201 |