CN206400069U - A kind of electric system Internet of Things detector - Google Patents

A kind of electric system Internet of Things detector Download PDF

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Publication number
CN206400069U
CN206400069U CN201620821467.7U CN201620821467U CN206400069U CN 206400069 U CN206400069 U CN 206400069U CN 201620821467 U CN201620821467 U CN 201620821467U CN 206400069 U CN206400069 U CN 206400069U
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China
Prior art keywords
internet
electric
things
detector
processor
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Active
Application number
CN201620821467.7U
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Chinese (zh)
Inventor
周国飞
陈嘉
谭兴华
林翎
赵跃进
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.)
Hunan Jia Feida Electronic Technology Co Ltd
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Hunan Jia Feida Electronic Technology Co Ltd
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Priority to CN201620821467.7U priority Critical patent/CN206400069U/en
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Abstract

The utility model discloses a kind of electric system Internet of Things detector, including processor;The processor is connected with power supply, human-computer interaction interface, AD conversion module;The AD conversion module is connected with acquisition module;The acquisition module accesses motor.The utility model cost is low, and communication distance is long, and networking is simple, it is adaptable to industrial internet of things equipment;Install simple, wiring cost is low.

Description

A kind of electric system Internet of Things detector
Technical field
The utility model is related to electric system Internet of Things detector.
Background technology
Traditional, non intelligent motor performance measuring instrument:The generally instrumentation of single-piece, the mode of action is also all adopted Manually operation, artificial reading and processing measurement data, have following defect:
1. inefficiency, whole process needs artificial operation.
2. time of measuring reports asynchronous, human factor to influence big to test result with test data.
3. equipment instrument is larger, the sensor node as industrial Internet of Things is not appropriate for, industry spot progress is arranged in Long-term real-time measurement.
Existing intelligent power tester:The conventional electric parameter measurement of motor can be realized substantially, can upload data, but exist Following defect:
1. measurement data is not comprehensive, do not consider to measure motor real time load rate and efficiency, it is impossible to become negative to frequency conversion The motor operating mode of load realizes test constantly.
2. or traditional radio data network cost is high:Such as GPRS network, it is necessary to which user pays campus network;It is logical Communication distance is short, such as Bluetooth, Wi-Fi, only the coverage less than 100 meters;Networking is complicated, and such as ZigBee needs Relay networking;All it is not suitable for industrial internet of things equipment.
Traditional cable data network, such as 485 buses or Ethernet nets, have that installation is complicated and wiring cost is high asks Topic.In industrial Internet of Things using upper, there is limitation.
The content of the invention
Technical problem to be solved in the utility model is, in view of the shortcomings of the prior art, providing the inspection of electric system Internet of Things Survey instrument.
In order to solve the above technical problems, the technical scheme that the utility model is used is:Electric system Internet of Things detector, Including processor;The processor is connected with power supply, human-computer interaction interface, AD conversion module;The AD conversion module and collection Module is connected;The acquisition module accesses motor.
The acquisition module includes the current transformer and voltage transformer being connected in each phase of input end of motor.Can root According to actual conditions, the current transformer and voltage transformer of different ranges are selected, required test signal is obtained.
The wireless communication module uses low-power consumption Internet of Things communication module, using low-power consumption Internet of Things communication protocol (LPWAN), pay extra communication cost without user, you can use 433MHz/470 MHz frequency ranges, carry out the remote of 1-5km Communication.
Detector can carry out real-time data communication with radio receiving terminal;External server can enter with radio receiving terminal The real-time data communication of row.
Compared with prior art, the utility model have the advantage that for:The utility model cost is low, communication distance Long, networking is simple, it is adaptable to industrial internet of things equipment;Install simple, wiring cost is low.
Brief description of the drawings
Fig. 1 is the utility model structured flowchart;
Fig. 2 is the utility model embodiment use principle figure.
Embodiment
The circuit design and each assembly function of the present invention:
1. the sensor collection terminal outside current transformer and voltage transformer composition instrument, according to the reality of measured data Situation, selects different ranges and the current transformer and voltage transformer of precision, obtains institute's test signal.
2. detection circuit receives institute's test signal and partial pressure is appropriate voltage signal, and passes through and AD conversion module transmission Give electric power detection chip.
3. electric power detection chip is according to incoming test signal, all parameter measurements are carried out, preliminary measurement result is obtained, and MCU is sent to by data-interface.
4.MCU, by complete measurement data and time of measuring, can be packaged into packet by data-interface.And Transfer a packet to LPWAN communication modules.
5.LPWAN communication modules carry out the transmission or reception of data according to LPWAN communication protocols.The communication module can be with The database or software platform of internet side are uploaded data to, the communication module can also be joined with other measuring apparatus Net, communication and data sharing.
6.MCU can be written and read by data-interface to memory module.Memory module can store embedded system System data, can also store measurement result.User can also use data-interface to be read out the data in memory module, Modification and write-in.
7. equipment carries LED display and button, can the relevant parameter of equipment be directly set for user, or checks and sets Standby measurement result.
, can be not against externally fed 8. equipment carries power supply circuit and battery.The battery of equipment can be dismantled.
Measurement part uses high precision current transformer and voltage transformer, and current transformer can be according to actual measurement Range changes the sensor of all size, and voltage transformer uses the transformer of 0.2 grade of resolution ratio, and maximum measurement range is 0- 1000V, can add outside extension measurement more than 10KV voltages.
Current Voltage AD conversion and detection module are using a high-precision three-phase electrical energy computation chip, it is adaptable to single-phase list The detection of the alternating voltage electric current of line, phase three-wire three and three-phase and four-line Three models.Chip internal is integrated with six road second orders At Sigma-Delta A/D converter circuits and all power, energy, effective, power factor and the data signal of frequency measurement The circuits such as reason, active power, reactive power, apparent energy, active energy and the nonfunctional that each phase and conjunction phase can be measured Measure, while the parameters such as each phase current, voltage effective value, power factor, phase angle, frequency can also be measured, power-equipment is fully met Performance data detection demand.Hardware design is greatly simplify using the chip, meets industrial simple efficient stable Principle.
Signal processing system is using 32 embedded microprocessor chips(MCU), by SPI data/address bus from electric current Voltage detection module read test data are simultaneously classified, compensated and calculated, signal processing system collection data processing, data hair Send, data display, parameter typing, data storage one.The demand of user's each side can be met.
Design size is not more than 200mm*100mm*100mm, and shelling machine is shown in accompanying drawing.
Shell includes LED display, keyboard, data-interface, antenna pedestal and antenna.
Shell does insulating Design.
Equipment plug and play, tested motor or electric power networks are without power-off, and equipment can be not against externally fed In the case of the continuous firing several months.
Starlike networking, equipment can be with the other equipment in automatic searching network and network, and automatically initiates connection.
Radio communication coverage:5km.
Partial test data precision(Part is by china institute of metrology identification):
1. voltage measurement uncertainty:0.01V
2. current measurement uncertainty:0.02A
3. power-factor measurement uncertainty:0.003
4. load factor measurement accuracy:<10%
5. harmonic wave calculates number of times:25 times
If Fig. 2 is an operation schematic diagram of pump motor 1, wherein depicting the inspection of electric system Internet of Things detecting instrument 2 Survey mode.
Motor 1 is three phase electric machine, therefore only needs to provide motor three-phase 3*380AC AC powers 3.
Close the power supply of electric system Internet of Things detector 2.
5,6,7 be current transformer, and usage is that current transformer current clamp is clipped on three input power cords successively, is made Power line passes through the current detecting hole of current clamp 5,6,7.The other end of current clamp 5,6,7 is connected to electric system Internet of Things successively On detector 2.
Voltage tester folder 8,9,10 is clipped on three power lines, it is necessary to clip broken power line successively, and voltage tester is pressed from both sides in addition One end is connected on electric system Internet of Things detector 2.
The power switch of electric system Internet of Things detector 2 is opened, starts measurement.Measurement result is stored in SD card, is needed Will when extract SD card and can just read the result of measurement.

Claims (6)

1. a kind of electric system Internet of Things detector, it is characterised in that including processor;The processor and power supply, man-machine friendship Mutual interface, AD conversion module connection;The AD conversion module is connected with acquisition module;The acquisition module accesses motor;It is described Processor is connected with wireless communication module;The wireless communication module communicates with radio receiving terminal;The wireless communication module Using low-power consumption Internet of Things communication module;The acquisition module include being connected on current transformer in each phase of input end of motor and Voltage transformer;The current clamp of three current transformers is clipped on three input power cords of motor successively, three input powers Line is each passed through the current detecting hole of three current clamps;The voltage tester folder of three voltage transformers is clipped in three power lines respectively On, and clip broken power line;Detector shell includes LED display, keyboard, data-interface, antenna pedestal and antenna.
2. electric system Internet of Things detector according to claim 1, it is characterised in that the AD conversion module passes through Spi bus is connected with the processor.
3. electric system Internet of Things detector according to claim 1, it is characterised in that the processor is also with wirelessly connecing Receive terminal communication.
4. electric system Internet of Things detector according to claim 1, it is characterised in that the power supply include AD/DC every From modular power source and battery;The battery is connected with charge power supply.
5. electric system Internet of Things detector according to claim 1, it is characterised in that the current transformer, which is used, to be divided Resolution is 0.2 grade of transformer, and maximum measurement range is 0-1000V.
6. electric system Internet of Things detector according to claim 1, it is characterised in that the acquisition module uses electric energy Detection chip.
CN201620821467.7U 2016-08-01 2016-08-01 A kind of electric system Internet of Things detector Active CN206400069U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620821467.7U CN206400069U (en) 2016-08-01 2016-08-01 A kind of electric system Internet of Things detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620821467.7U CN206400069U (en) 2016-08-01 2016-08-01 A kind of electric system Internet of Things detector

Publications (1)

Publication Number Publication Date
CN206400069U true CN206400069U (en) 2017-08-11

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201620821467.7U Active CN206400069U (en) 2016-08-01 2016-08-01 A kind of electric system Internet of Things detector

Country Status (1)

Country Link
CN (1) CN206400069U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI664409B (en) * 2018-04-27 2019-07-01 新光網股份有限公司 Wireless vibration detecting device and electric motor system using the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI664409B (en) * 2018-04-27 2019-07-01 新光網股份有限公司 Wireless vibration detecting device and electric motor system using the same

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