CN202707544U - Automatic speed regulating system based on mine partial ventilator of digital signal processor (DSP) - Google Patents
Automatic speed regulating system based on mine partial ventilator of digital signal processor (DSP) Download PDFInfo
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- CN202707544U CN202707544U CN 201220146007 CN201220146007U CN202707544U CN 202707544 U CN202707544 U CN 202707544U CN 201220146007 CN201220146007 CN 201220146007 CN 201220146007 U CN201220146007 U CN 201220146007U CN 202707544 U CN202707544 U CN 202707544U
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- dsp
- ventilator
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- automatic speed
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Abstract
The utility model discloses an automatic speed regulating system based on a mine partial ventilator of a digital signal processor (DSP). The automatic speed regulating system based on the mine partial ventilator of the DSP comprises an industrial control computer and the DSP. The industrial control computer is connected with the DSP in a communicated mode through a communication interface and a remote sensing (RS) -485 communication circuit. The DSP is respectively connected with a power circuit, a reset circuit, a wind speed sensor, a temperature sensor, a gas sensor and a mining explosion-separating frequency converter. The DSP is further externally connected with a warning circuit. A signal output end of the mining explosion-separating frequency is connected with the ventilator. A vague piping and instruments diagram (PID) controller designed by applying assembly languages is arranged in the DSP. According to the automatic speed regulating system based on the mine partial ventilator of the DSP, revolving speed of the ventilator can be automatically controlled according to the gas density, and at the same time, ultralimit warning of the gas and displays of the gas density, the wind speed, the temperature and the motor current and the like can be achieved. The automatic speed regulating system based on the mine partial ventilator of the DSP is simple to control and strong in reliability, not only saves a large number of electric energy, but also can automatically control the gas density in a safe range. The rate of gas accidents can be greatly reduced, and the automatic speed regulating system based on the mine partial ventilator of the DSP has very good application prospects and social and economical benefits.
Description
Technical field
The utility model relates generally to the speed control system of ventilator, relates in particular to a kind of automatic speed regulation system of the mine local ventilator based on DSP.
Background technique
Mine ventilation technology is the important foundation of Safety of Coal Mine Production.The research of highly gassy mine aeration technology is one of important topic of China's coal-mine production technology research always, and oneself has carried out large quantity research to this by warp a lot of experts and scholars and engineers and technicians, obtains many achievements.
China's mine ventilation technology has been obtained numerous noticeable achievements.For example, in order to check and improve the runnability of main ventilator, main Unit of Character Test For Fan and test method have been studied.This device by sensors such as wind speed, blast, atmospheric parameter, electrical quantity and rotating speeds, gathers all measured parameter automatically under computer control, and when automatically depositing total data in, the result of calculation of all data of Graphics Processing on screen.By plotter output Fan Characteristic Curve, realized measuring rapidly, accurately, reliably the purpose of main blower performance subsequently.The technical merit of China's mine ventilation also is in relative backward state but as a whole.The reliability of ventilation system is also very low, and existing Efficiency of Axial Fan is low, power consumption is large.Especially development in recent years is combined taking and placing top coal-mining method and high-yield and high-efficiency working surface rapidly, it is large, good in economic efficiency to have mining rate, the characteristics that mechanization degree is high, but caused that gas emission is large, the working surface Air Quantity Required is large, oneself can not adapt to this mode of production traditional aeration technology and ventilation equipment.In order to ensure the safety rate of ventilation system and Gas, day by day popularized based on the Coal Mine Safety Monitoring Systems of computer technology, the mine anti-disaster ability is greatly improved.Recent years, some domestic manufacturers have developed the booster automatic speed regulation system, mostly adopt single-chip microcomputer as control chip, and system architecture is simple, and control strategy is also fairly simple.Its major defect is:
1) reliability is relatively poor, and the dynamic performance of automatic speed regulation system is limited;
2) the data such as the gas density by field measurement and ventilator wind speed, flow are not set up correct contacting, do not reach good control effect;
3) reasonably use frequency variator difficult for on-the-spot user of service, it relates to the relation etc. of setting, gas density and ventilator rotating speed of adjustment, the Acceleration and deceleration time of the detent torque of frequency variator.
The model utility content
The utility model purpose is exactly in order to remedy the defective of prior art, a kind of rotating speed that can automatically control according to gas density ventilator is provided, can also realize that simultaneously gas exceeding limit reports to the police, the automatic speed regulation system based on the mine local ventilator of DSP of gas density, wind speed, temperature, the isoparametric demonstration of current of electric.
To achieve these goals, the utility model is achieved through the following technical solutions:
Automatic speed regulation system based on the mine local ventilator of DSP, it is characterized in that: include as the industrial control computer of upper-position unit with as the DSP of lower-position unit, also include power circuit, reset circuit, air velocity transducer, temperature transducer, firedamp sensor, explosion-isolating mine frequency converter, warning circuit, DSP respectively with power circuit, reset circuit, air velocity transducer, temperature transducer, firedamp sensor, explosion-isolating mine frequency converter connects, DSP is external warning circuit also, the signal output part of explosion-isolating mine frequency converter connects the control end of ventilator, industrial control computer is used assembler language and is designed with a fuzzy controller by communication interface and RS-485 communication circuit and DSP communication connection among the described DSP.
The model of described DSP is TMS320F2407.
Described firedamp sensor has three, three firedamp sensor T1, T2, T3 be installed in respectively near the driving face (≤5m) locate, near the driving face entrance, driving face air intake place, described air velocity transducer is installed in driving face air intake place, temperature transducer be installed near the driving face (≤5m) locate.
The output terminal of described air velocity transducer, temperature transducer, firedamp sensor T1～T3 is received the A/D input interface IOPA0 of DSP～4.
Principle of the present utility model is:
Lower-position unit DSP of the present utility model is mainly for detection of parameters such as gas density, wind speed, temperature, and be uploaded in the upper-position unit industrial control computer by parameters such as communication interface and RS-485 gas density, wind speed, temperature, industrial control computer shows above-mentioned parameter by programming, being implemented in the industrial control computer.When gas density exceeded certain value, lower-position unit DSP started warning circuit work and utilizes fuzzy controller according to gas density explosion-isolating mine frequency converter to be automatically adjusted, and makes its frequency conversion, thereby realized the speed governing to ventilator.
The utility model has following beneficial effect compared to existing technology:
(1) the utility model has adopted the two level computer supervisory system that upper-position unit and lower-position unit combine, and upper-position unit is process control machine IPC, and lower-position unit is TMS320F2407 DSP, and communication circuit is RS-485, and system has high reliability, real-time, adaptability.
(2) arrange firedamp sensor at air intake, working surface, the return place of driving face respectively, improved system reliability.
(3) can automatically adjust according to gas density the ventilation of ventilator, also have simultaneously gas exceeding limit and report to the police the Presentation Functions such as gas density, wind speed, fan motor electric current.
(4) take fuzzy controller as the control system core, it is good to have adaptability, strong robustness, the advantage that control performance is good.
Description of drawings
Fig. 1 is structural representation block diagram of the present utility model.
Embodiment
As shown in Figure 1, automatic speed regulation system based on the mine local ventilator of DSP, include as the industrial control computer 2 of upper-position unit with as the DSP1 of lower-position unit, industrial control computer 2 is by communication interface and RS-485 circuit 3 and DSP1 communication connection, DSP1 respectively with power circuit 13, reset circuit 12, air velocity transducer 4, temperature transducer 5, firedamp sensor 6-8, explosion-isolating mine frequency converter 9 connects, DSP1 also is circumscribed with warning circuit 11, the signal output part of explosion-isolating mine frequency converter 9 connects ventilator 10, uses assembler language among the DSP1 and is designed with a fuzzy controller.
The model of DSP1 is TMS320F2407, is the encrypted DSP of TI company, is particularly suitable for the high speed control fields such as motor and phase inverter, has the hardware circuit of producing PWM, the high speed processing ability is arranged and to the special applications of AC motor.
In order to improve system reliability, firedamp sensor has three, three firedamp sensor T1-T3 be firedamp sensor 6,7,8 be installed in respectively near the driving face (≤5m) locate, near the driving face entrance, driving face air intake place, described air velocity transducer 4 is installed in driving face air intake place, temperature transducer 5 be installed near the driving face (≤5m) locate.
Air velocity transducer 4, temperature transducer 5, firedamp sensor 6,7,8 output terminal are received the A/D input interface IOPA0 of DSP～4.
System's upper-position unit is that industrial control computer 2 is installed near the booster, and lower-position unit is that DSP1 is installed on the heading end, and industrial control computer 2 links to each other with RS-485 circuit 3 by communication interface with DSP1, can realize both-way communication.Lower-position unit DSP1 gathers and processes the data of firedamp sensor 6～8, air velocity transducer 4, temperature transducer 5 detections.As firedamp sensor T
1Start warning circuit 11 when 6 mash gas concentrations of surveying are 1.0% and report to the police, outage is sent a telegram in reply when being lower than 1.0% voluntarily when being 1.5%.As firedamp sensor T
2Start warning circuit 11 when 7 mash gas concentrations of surveying are 1.0% and report to the police, outage is sent a telegram in reply when being lower than 1.0% voluntarily when being 1.1%.As firedamp sensor T
3Start warning circuit 11 when 8 mash gas concentrations of surveying are 0.5% and report to the police, outage is sent a telegram in reply when being lower than 0.5% voluntarily when being 0.6%.Use fuzzy controller of assembler language design in TMS320F2407 DSP 1, it is with the error of gas density
eAnd error rate
e c As the input of fuzzy controller, utilize fuzzy control technology that the parameter of PID controller is carried out obtaining the parameter of PID controller from adjusting
K P ,
K I ,
K D Thereby, obtain the setting value of corresponding frequency variator 9, this value is delivered to frequency variator 9 by the PWM output pin of TMS320F2407 DSP 1 and is controlled ventilator 10 rotating speeds.The data that lower-position unit DSP1 obtains detection such as gas density, wind speed, temperature, current of electric etc. send industrial control computer 2 to by communication interface and RS-485 circuit 3, and industrial control computer 2 can be realized the demonstration of these parameters by programming.
Claims (4)
1. automatic speed regulation system based on the mine local ventilator of DSP, it is characterized in that: include as the industrial control computer of upper-position unit with as the DSP of lower-position unit, also include power circuit, reset circuit, air velocity transducer, temperature transducer, firedamp sensor, explosion-isolating mine frequency converter, warning circuit, DSP respectively with power circuit, reset circuit, air velocity transducer, temperature transducer, firedamp sensor, explosion-isolating mine frequency converter connects, DSP is external warning circuit also, the signal output part of explosion-isolating mine frequency converter connects the control end of ventilator, industrial control computer is used assembler language and is designed with a fuzzy controller by communication interface and RS-485 communication circuit and DSP communication connection among the described DSP.
2. the automatic speed regulation system of the mine local ventilator based on DSP according to claim 1, it is characterized in that: the model of described DSP is TMS320F2407.
3. the automatic speed regulation system of the mine local ventilator based on DSP according to claim 1, it is characterized in that: described firedamp sensor has three, three firedamp sensor T1, T2, T3 are installed in respectively near the driving face, near the driving face entrance, driving face air intake place, described air velocity transducer is installed in driving face air intake place, and temperature transducer is installed near the driving face.
4. it is characterized in that according to claim 1 or the automatic speed regulation system of 3 described mine local ventilators based on DSP: the output terminal of described air velocity transducer, temperature transducer, firedamp sensor T1～T3 is received the A/D input interface IOPA0 of DSP～4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220146007 CN202707544U (en) | 2012-04-09 | 2012-04-09 | Automatic speed regulating system based on mine partial ventilator of digital signal processor (DSP) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220146007 CN202707544U (en) | 2012-04-09 | 2012-04-09 | Automatic speed regulating system based on mine partial ventilator of digital signal processor (DSP) |
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| Publication Number | Publication Date |
|---|---|
| CN202707544U true CN202707544U (en) | 2013-01-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220146007 Expired - Fee Related CN202707544U (en) | 2012-04-09 | 2012-04-09 | Automatic speed regulating system based on mine partial ventilator of digital signal processor (DSP) |
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| CN (1) | CN202707544U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106368976A (en) * | 2016-11-30 | 2017-02-01 | 淮北矿业股份有限公司 | Constant-temperature frequency conversion speed regulator for mine cooling fan |
| CN109958474A (en) * | 2019-03-18 | 2019-07-02 | 天地（常州）自动化股份有限公司 | Driving face in coal mine local ventilation intelligent control method and ventilated control system |
| CN110185648A (en) * | 2019-07-09 | 2019-08-30 | 新疆工程学院 | A kind of blower fan control system |
-
2012
- 2012-04-09 CN CN 201220146007 patent/CN202707544U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106368976A (en) * | 2016-11-30 | 2017-02-01 | 淮北矿业股份有限公司 | Constant-temperature frequency conversion speed regulator for mine cooling fan |
| CN109958474A (en) * | 2019-03-18 | 2019-07-02 | 天地（常州）自动化股份有限公司 | Driving face in coal mine local ventilation intelligent control method and ventilated control system |
| CN110185648A (en) * | 2019-07-09 | 2019-08-30 | 新疆工程学院 | A kind of blower fan control system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130130 Termination date: 20130409 |