CN206400304U - Frequency converter tele-control system based on single-chip microcomputer and GPRS - Google Patents
Frequency converter tele-control system based on single-chip microcomputer and GPRS Download PDFInfo
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- CN206400304U CN206400304U CN201720014435.0U CN201720014435U CN206400304U CN 206400304 U CN206400304 U CN 206400304U CN 201720014435 U CN201720014435 U CN 201720014435U CN 206400304 U CN206400304 U CN 206400304U
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- frequency converter
- gprs
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- control
- data transmission
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Abstract
The utility model discloses a kind of frequency converter tele-control system based on single-chip microcomputer and GPRS, including remote variable frequency control unit, remote variable frequency control unit with monitoring computer is communicated to connect with the communication connection of control side GPRS data transmission unit and by RS232 communication interfaces by RS485 interfaces, and control side GPRS data transmission unit passes through GPRS communication networks and multiple monitored frequency converter unit wireless communication connections；Frequency converter unit is by controlled side GPRS data transmission unit, frequency converter and motor unit into controlled side GPRS data transmission unit is communicated to connect by RS485 communication interfaces and frequency converter, and Frequency Converter Control output end is connected with Motor Control input.The utility model utilizes GPRS communication networks, sets up the collecting and distributing control management of frequency converter unit remote radio communication, controls its start and stop, rotating, given frequency simultaneously to live frequency converter, improve operational reliability and production efficiency.
Description
Technical field
The utility model is related to tele-control system, more particularly, to the frequency converter remote control based on single-chip microcomputer and GPRS
System.
Background technology
Frequency conversion speed-adjusting system is widely used in the industries such as chemical industry, machinery, colliery, the energy and electric power, especially blower fan, water pump
Deng traditional use occasion.The characteristics of branch region is wide is used because above-mentioned occasion has, therefore there is live operational factor and is such as opened
Stop, rotating, frequency, output voltage, electric current, power and the information such as whether break down can not be grasped and found in time, greatly
Above-mentioned occasion frequency conversion speed-adjusting system reliability of operation and production efficiency are reduced greatly, while also being made troubles to maintenance.
The content of the invention
The utility model purpose is to provide a kind of frequency converter tele-control system based on single-chip microcomputer and GPRS.
To achieve the above object, the utility model takes following technical proposals：
Frequency converter tele-control system described in the utility model based on single-chip microcomputer and GPRS, including remote variable frequency control are single
Member, the remote variable frequency control unit is communicated to connect and led to control side GPRS data transmission unit by RS485 communication interfaces
RS232 communication interfaces and monitoring computer communication connection are crossed, the control side GPRS data transmission unit passes through GPRS communication networks
Network and multiple monitored frequency converter unit wireless communication connections；The frequency converter unit is single by controlled side GPRS data transmission
Member, frequency converter are with motor unit into the controlled side GPRS data transmission unit passes through RS485 communication interfaces and the frequency converter
Communication connection, Frequency Converter Control output end is connected with the Motor Control input.
The remote variable frequency control unit include single-chip microcomputer, the single chip communication interface be connected to RS485 modules,
RS S232 modules, DA/AD interfaces, DI/DO interfaces, display and button；The control side GPRS data transmission unit and controlled
Side GPRS data transmission unit includes MEGA64 microprocessors, SIMCOM300CZ GPRS modules, SIM card, data transmission mould
Block and serial port module.
The utility model advantage is, using GPRS communication networks, to devise a set of frequency converter based on mobile network
Unit tele-control system, sets up the collecting and distributing control management of remote radio communication of frequency converter unit, separate unit and Duo Tai frequency converter controls
The whole frequency converter units in working site are controlled its start and stop, rotating, given frequency etc. simultaneously, monitored simultaneously by system arbitrarily switching
The running status and operational factor of all frequency converter units, dramatically reduce the working strength of operator, improve operation
Reliability and production efficiency, have broad application prospects.
Brief description of the drawings
Fig. 1 is system structure diagram of the present utility model.
Fig. 2 is the schematic block circuit diagram of frequency conversion remote control unit described in Fig. 1.
Fig. 3 is the schematic block circuit diagram of GPRS data delivery unit described in Fig. 1.
Fig. 4 is the circuit theory diagrams of RS485 modules described in the utility model.
Fig. 5 is software flow pattern of the present utility model.
Embodiment
Embodiments of the invention are elaborated below in conjunction with the accompanying drawings, the present embodiment using technical solution of the present invention before
Put and implemented, give detailed embodiment and specific operating process, but protection scope of the present invention is not limited to down
State embodiment.
As Figure 1-5, the frequency converter tele-control system described in the utility model based on single-chip microcomputer and GPRS, including remote
Journey frequency conversion control unit, the remote variable frequency control unit passes through RS485 communication interfaces and control side GPRS data transmission unit
Communicate to connect and communicated to connect by RS232 communication interfaces with monitoring computer, the control side GPRS data transmission unit leads to
Cross GPRS communication networks and multiple monitored wireless communication connections of frequency converter unit 1；The frequency converter unit 1 is by being controlled side
GPRS data transmission unit, frequency converter and motor unit are into the controlled side GPRS data transmission unit is connect by RS485 communications
Mouth is communicated to connect with the frequency converter, and Frequency Converter Control output end is connected with the Motor Control input.The long-range change
Frequency control unit includes single-chip microcomputer, and the single chip communication interface is connected to RS485 modules, RS232 modules, DA/AD and connect
Mouth, DI/DO interfaces, display and button；The control side GPRS data transmission unit and controlled side GPRS data transmission unit
Include MEGA64 microprocessors, SIMCOM300CZ GPRS modules, SIM card, data transmitting module and serial port module.
The utility model frequency conversion remote control unit CPU uses Mega128 microprocessors, is responsible for control and monitors that each becomes
The frequency converter running situation of frequency device unit 1, is connected by RS485 communication interfaces with GPRS DTU digital transmission modules, is controlled by communicating
Frequency converter start and stop processed, acceleration and deceleration and monitoring of output parameter etc., while being communicated by U-SART serial ports with monitoring computer.This reality
With the master and slave two kinds of control models of new offer, under main equipment pattern, it can be achieved to send the slave unit below it control life
Order；Under slave unit pattern, the command request of main website is received and responded.In GPRS communication networks, frequency converter is in from erect-position
Put, concerned control command is sent to as the frequency conversion remote control unit of main equipment (such as startup, stopping, rotating are run)
With the Setting signal such as motor speed or torque, it is possible to which real-time online reads frequency converter running state information；Swept with timing
Frequency converter failure function is retouched, and failure reset etc. can be carried out to frequency converter.
Frequency conversion remote control unit realizes collection, processing and the operation to data of frequency converter.Wherein RS485 modules provide logical
The hardware interface of letter, and the communication realized is docked with GPRS data transmission unit, RS232 modules are provided and monitoring computer（On
Position machine）The interface of connection；Alternatively, when there is line traffic control frequency converter, DI/DO can connect change to DI/DO and DA/AD modules
The digital control terminal of frequency device realizes switch control；Analog output module can provide 4-20mA current signals and 0-10V electricity
Signal is pressed, frequency converter frequency or torque etc. can be given by having during line traffic control；Analog input mModule can gather 4-20mA and 0-
10V signals, there is the actual value signal that frequency converter feedback can be converted into during line traffic control（Such as actual frequency, output voltage, electric current letter
Number）；Button and display module constitute man machine operation interface, can Real time displaying frequency converter current state, while it is any to provide button
Switching is monitored or control model.
RS485 communication interfaces pass through two-wire system RS-485 hardware interfaces and GPRS data transmission unit and frequency converter unit 1
Realize interconnection.RS485 communication interface chips select the SN75LBCl84 of TI companies, and the chip is using half-duplex data communication mould
Formula, and with the RS-485 differential bus transceivers of transient voltage suppression function.
RS485 communication interface chips SN75LBCl84 carries built-in high-energy transient noises protection device, can bear
400W over-pressed transition, while having perfect anti-lightning strike function, built-in Transient Voltage Suppressor（TVS）With can withstand up to
8kV/400W thunderbolt and electrostatic surge power protector.Long haul communication speed is ensured by high speed optoelectronic isolating chip 6N137
Rate, sets enhancing drive circuit, realizes that waveform is not distorted on order wire.The RS-485 communication modes of this isolation are carried simultaneously
The hardware supported to industrial general communication protocol Modbus agreements and USS agreements is supplied.
Frequency conversion remote control unit is using the ATmega128 microprocessors of atmel corp as core, and it is based on enhanced
There is provided 32 8 general registers for 8 Low-Power CMOS microcontrollers of AVR risc architectures.Mega128 has advanced finger
Order collection and one-cycle instruction perform the time, up to 1MIPS/MHz data throughput can be provided, so as to greatly improve system
Data processing speed.The In-System Programmable flash of 128K bytes is provided simultaneously, the requirement of the program space is met, 4K bytes
EEPROM, up to 100000 times write/erases remove the cycle, meet a large amount of power down in control process and do not lose the parameter that can find rewriting etc.
The requirement of historical data, while 4 PWM timer conters can provide 2 road DA output signals, 8 10, tunnels have optional difference
The ADC of input stage programmable-gain can meet the collection of external analog amount signal, the convenient access DCS system of 2 road USART serial ports.
GPRS data transmission unit is using the MEGA64 microprocessors of atmel corp as core, periphery configuration SIMCOM300CZ
GPRS module, data transmitting module and serial port module, by communications platform of GPRS communication networks, there is provided the RS-232/ of standard
485/TTL interfaces, are according to industrial standard designed, and are directly connected in tele-control system with frequency conversion remote control unit.GPRS
Communication mode is transparent, non-IP system equipments access GPRS communication networks and Internet network can be made by serial ports, without right
Field data network management can be achieved in existing equipment upgrading.The data transmission mechanism safety transparent of GPRS module, it is right
The data transportation requirements of industrial user are completely up to standard, especially to it is paroxysmal, frequently, discontinuity, a small amount of data transfer
It is particularly suitable, therefore it is highly suitable for the application in M2M fields and the exploitation of application system.
Claims (2)
1. a kind of frequency converter tele-control system based on single-chip microcomputer and GPRS, it is characterised in that：Controlled including remote variable frequency single
Member, the remote variable frequency control unit is communicated to connect and led to control side GPRS data transmission unit by RS485 communication interfaces
RS232 communication interfaces and monitoring computer communication connection are crossed, the control side GPRS data transmission unit passes through GPRS communication networks
Network and multiple monitored frequency converter units（1）Wireless communication connection；The frequency converter unit（1）Passed by controlled side GPRS data
Defeated unit, frequency converter and motor unit are into the controlled side GPRS data transmission unit is become by RS485 communication interfaces with described
Frequency device is communicated to connect, and Frequency Converter Control output end is connected with the Motor Control input.
2. the frequency converter tele-control system based on single-chip microcomputer and GPRS according to claim 1, it is characterised in that：It is described
Remote variable frequency control unit include single-chip microcomputer, the single chip communication interface be connected to RS485 modules, RS S232 modules,
DA/AD interfaces, DI/DO interfaces, display and button；The control side GPRS data transmission unit and controlled side GPRS data are passed
Defeated unit includes MEGA64 microprocessors, SIMCOM300CZ GPRS modules, SIM card, data transmitting module and serial port module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720014435.0U CN206400304U (en) | 2017-01-06 | 2017-01-06 | Frequency converter tele-control system based on single-chip microcomputer and GPRS |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720014435.0U CN206400304U (en) | 2017-01-06 | 2017-01-06 | Frequency converter tele-control system based on single-chip microcomputer and GPRS |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206400304U true CN206400304U (en) | 2017-08-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720014435.0U Expired - Fee Related CN206400304U (en) | 2017-01-06 | 2017-01-06 | Frequency converter tele-control system based on single-chip microcomputer and GPRS |
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| Country | Link |
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| CN (1) | CN206400304U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109725562A (en) * | 2018-11-29 | 2019-05-07 | 石狮市瑞力机械科技有限公司 | One kind is based on wireless connection frequency converter information user control platform |
| CN111594459A (en) * | 2020-04-30 | 2020-08-28 | 平湖旗滨玻璃有限公司 | Remote control method and device for water pump, electronic equipment and storage medium |
-
2017
- 2017-01-06 CN CN201720014435.0U patent/CN206400304U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109725562A (en) * | 2018-11-29 | 2019-05-07 | 石狮市瑞力机械科技有限公司 | One kind is based on wireless connection frequency converter information user control platform |
| CN111594459A (en) * | 2020-04-30 | 2020-08-28 | 平湖旗滨玻璃有限公司 | Remote control method and device for water pump, electronic equipment and storage medium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170811 Termination date: 20180106 |