CN107943153A - The parallel temperature-controlling system of multi-measuring point multiloop under vacuum low-temperature environment - Google Patents
The parallel temperature-controlling system of multi-measuring point multiloop under vacuum low-temperature environment Download PDFInfo
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- CN107943153A CN107943153A CN201711292305.4A CN201711292305A CN107943153A CN 107943153 A CN107943153 A CN 107943153A CN 201711292305 A CN201711292305 A CN 201711292305A CN 107943153 A CN107943153 A CN 107943153A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
- G05D23/24—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature the sensing element having a resistance varying with temperature, e.g. a thermistor
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Abstract
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Claims (16)
- It is 1. mainly single by center control suitable for the multiloop temperature concurrent control system of multi-measuring point of operation under vacuum conditions Member, temperature collecting cell, distributed control temperature unit composition;Wherein, the central control unit:Including man-machine interaction unit, condition monitoring unit, central control interface unit, data Storage unit, the multiloop parallel temperature-controlling system user of multi-measuring point that the man-machine interaction unit is used under vacuum low-temperature environment refer to Order input and system operation information and equipment state tabular Graphical output;Condition monitoring unit is used to monitor in real time whole The communication state of system, instrument operating status, are periodically controlled by central control interface unit to temperature collecting cell and distribution Warm unit sends instruction, carries out power state detection and data acquisition instrument state-detection, and receive corresponding detection information, be System communication state, instrument operating status, system mode judgement, identifying system abnormal conditions and overload alarm feelings are carried out according to information Condition, and will judge that result is sent to human-machine interface unit, carry out system monitoring state real-time display and abnormal alarm;The temperature collecting cell, including temperature acquisition interface unit, data acquisition unit, acquisition state detection unit;Data All passages of collecting unit are parallel acquisition, i.e., each passage is provided with corresponding AD conversion module, is carried out at the same time data Collection;The distribution control temperature unit, including distributed temperature control interface unit, power control unit, temperature control state detection unit, Distributed temperature control interface unit is used to receiving control instruction transmitted by central control interface unit, and by distributed control temperature unit The system operation information that is gathered, status information of equipment, control procedural information etc. are sent to central control unit, while for connecing The real time temperature data that the temperature collecting cell collection of shrinkage temperature data transmission unit transmission calculates, and pass data to power supply Control unit, carries out corresponding power supply control.
- 2. temperature concurrent control system as claimed in claim 1, wherein, the instruction of user instruction input is opened including data acquisition Dynamic instruction, temperature control enabled instruction, data acquisition parameters setting, sensor parameters setting, control loop parameter setting, alarm limit are set It is fixed.
- 3. temperature concurrent control system as claimed in claim 1, wherein, system operation information and equipment state tabular figure Change output include data acquisition parameters, control loop parameter, sensor temperature data, power supply control data, system monitoring state, Real time temperature data and curves.
- 4. temperature concurrent control system as claimed in claim 1, wherein, it is defeated that system exception includes power supply communication failure, power supply Be out of order, data acquisition instrument communication failure, data acquisition instrument collection failure, sensor failure, heating circuit short circuit, heating Loop open circuit.
- 5. temperature concurrent control system as claimed in claim 1, wherein, overload alarm situation includes temperature over-range, electric current surpasses Limit, warming and cooling rate transfinite.
- 6. temperature concurrent control system as claimed in claim 1, wherein, data storage cell is set according to man-machine interaction unit Data memory format and store path, periodically maintain system data.
- 7. temperature concurrent control system as claimed in claim 1, wherein, temperature acquisition interface unit is used to receive central control Control instruction transmitted by interface unit, and system operation information, status information of equipment, the temperature that temperature collecting cell is gathered The information of degrees of data is sent to central control unit, while is adopted for transmitting data acquisition unit to distributed temperature control interface unit Collect the temperature data calculated.
- 8. temperature concurrent control system as claimed in claim 1, wherein, data acquisition unit drives including data acquisition instrument Unit, parallel drive unit, sensor fitting unit, device longevity unit;Wherein data acquisition instrument driving unit obtains user's input of acquisition instructions, data acquisition parameters from man-machine interaction unit Instruction, according to command adapted thereto and parameter, driving data acquisition instrument carries out the data acquisition of respective channel and respective type, there is provided Sensor measures initial data, and data message is sent to sensor fitting unit;Parallel drive unit realizes different data acquisition instrument concurrent working, different passage measuring points are adopted by hardware synchronization module Collection time error is less than 20ms, ensures the synchronism of data acquisition, the validity of temperature data;Sensor fitting unit obtains sensor parameters information according to from man-machine interaction unit, by data acquisition instrument driving unit The sensor measurement initial data of collection, by corresponding the Fitting Calculation, is converted into temperature data;Each passage accumulation access times of each instrument of device longevity unit record and Cumulative Elapsed Time, when accumulation access times and tire out The plot operation time reaches working service threshold values, which can send maintenance and be prompted with detection, and will send information to condition monitoring Unit, prompts user to carry out corresponding maintenance program.
- 9. temperature concurrent control system as claimed in claim 1, wherein, the collection of acquisition state detection unit timing detection temperature The operating status of unit, and condition monitoring unit is sent data to, carry out corresponding judgement processing.
- 10. temperature concurrent control system as claimed in claim 9, wherein, the operating status is transported including data acquisition instrument Row state, communication state, working sensor state.
- 11. temperature concurrent control system as claimed in claim 1, wherein, power control unit includes power source drive unit, ginseng Number adjusts unit, control strategy unit, parallel drive unit, power source life unit;Wherein power source drive unit obtains control instruction from man-machine interaction unit, is exported according to the power supply of control strategy unit requirement Parameter, the electric current and voltage output of power supply are controlled by stored program control system;Parameter tuning unit needs the control loop of parameter tuning by man-machine interaction unit selection, is calculated according to parameter self-tuning Method, carries out PID or PI controlling strategy parameter Self-tuning Systems, and after tuning process, the parameter after adjusting is returned to human-computer interaction Unit is exported;Control strategy unit obtains control parameter and default control strategy from man-machine interaction unit, anti-according to temperature collecting cell The temperature information for presenting each temperature control circuit carries out temperature control;Parallel drive unit:Parallel drive scheduling is carried out to programmable power supply, ensures that the response speed of control instruction is less than 20ms;Every programmable power supply Cumulative Elapsed Time of power source life unit record, when Cumulative Elapsed Time reaches working service threshold values, The unit can send maintenance and be prompted with detection, and will send information to condition monitoring unit, prompt user to be safeguarded accordingly Program.
- 12. temperature concurrent control system as claimed in claim 1, wherein, the temperature control state detection unit timing detection point The operating status of cloth control temperature unit.
- 13. temperature concurrent control system as claimed in claim 1, wherein, the temperature control state detection unit is by testing result Timing is sent to central control unit by distributed temperature control interface unit, and detection information is judged in condition monitoring unit Processing, power supply and circuit real-time status are shown by interpersonal interactive unit.
- 14. temperature concurrent control system as claimed in claim 12, wherein, operating status include programmable power supply operating status, Communication state, heating circuit state.
- 15. temperature concurrent control system as claimed in claim 14, wherein, heating circuit state-detection is defeated in every power supply Current transformer is installed, voltage transmitter, 0-10V is converted to by power output signal, and accesses distributed temperature control list at outlet In the measurement module of member, by detecting electric power outputting current and voltage, power supply and loop state are detected.
- 16. such as claim 1-15 any one of them temperature concurrent control systems, wherein, in distributed control temperature unit controller In, open up 6 separate threads, 30 programmable power supplys in each power supply cabinet are evenly distributed in 6 threads and are carried out, i.e., it is each Thread has 5 programmable power supplys, and the separate unit power command corresponding time is 2-3ms, and it is 15ms that 5 programmable power supplys, which instruct the corresponding time,.
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Cited By (5)
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CN108873969A (en) * | 2018-08-15 | 2018-11-23 | 北京空间飞行器总体设计部 | A kind of distribution temperature-controlling system |
CN109976409A (en) * | 2019-04-19 | 2019-07-05 | 合肥一煊检测技术有限公司 | A kind of temperature acquisition control system of aeronautical product test |
CN111176349A (en) * | 2019-12-16 | 2020-05-19 | 北京空间机电研究所 | Space remote sensor temperature control system easy to expand |
CN111208931A (en) * | 2019-11-25 | 2020-05-29 | 中国航空工业集团公司洛阳电光设备研究所 | Synchronous acquisition and control method of distributed digital temperature sensor |
CN117123163A (en) * | 2023-09-10 | 2023-11-28 | 福建德尔科技股份有限公司 | Intelligent heating system for gas phase fluorination reaction |
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Publication number | Priority date | Publication date | Assignee | Title |
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CN108873969A (en) * | 2018-08-15 | 2018-11-23 | 北京空间飞行器总体设计部 | A kind of distribution temperature-controlling system |
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CN111176349A (en) * | 2019-12-16 | 2020-05-19 | 北京空间机电研究所 | Space remote sensor temperature control system easy to expand |
CN117123163A (en) * | 2023-09-10 | 2023-11-28 | 福建德尔科技股份有限公司 | Intelligent heating system for gas phase fluorination reaction |
CN117123163B (en) * | 2023-09-10 | 2024-04-02 | 福建德尔科技股份有限公司 | Intelligent heating system for gas phase fluorination reaction |
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