CN103954088B - A kind of based on spectrometer, for the high energy efficiency intelligent temperature control system of ccd detector refrigerating plant - Google Patents
A kind of based on spectrometer, for the high energy efficiency intelligent temperature control system of ccd detector refrigerating plant Download PDFInfo
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- CN103954088B CN103954088B CN201410155940.8A CN201410155940A CN103954088B CN 103954088 B CN103954088 B CN 103954088B CN 201410155940 A CN201410155940 A CN 201410155940A CN 103954088 B CN103954088 B CN 103954088B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
Abstract
The invention discloses a kind of based on spectrometer, for the high energy efficiency intelligent temperature control system of ccd detector refrigerating plant, including temperature sensor, obtain temperature the output temperature signal of current ccd detector；Processes temperature signal module, input control module after temperature signal is amplified and changes；Ccd data acquisition module, gathers ccd data, is input to master cpu；Master cpu module, the signal to noise ratio that ccd detector is current is calculated according to ccd data, according to signal to noise ratio size, master cpu module sends instruction to control module, control direct current refrigeration power supply to power to semiconductor refrigerating TEC, semiconductor TEC changes the operating temperature of ccd detector, until signal to noise ratio does not affect device measuring data.
Description
Technical field
The present invention relates to temperature control system, particularly relate to a kind of based on spectrometer, for ccd detector refrigerating plant
High energy efficiency intelligent temperature control system.
Background technology
CCD, English full name: Charge-coupled Device, Chinese full name: charge coupled device.Can become again
Ccd image sensor.CCD is a kind of semiconductor devices, it is possible to optical image is converted into data signal.Have stable performance and
Sensitivity high.
Noise during ccd detector work mainly has photon grain noise, dark current noise, (amplifier is multiple for reading noise
Position noise and output amplifier noise), clock induced noise etc., especially when normal temperature works, dark current noise and reading are made an uproar
Sound is big especially, and these all will produce impact to final data.The impact of noise is often much greater than the impact of visible ray, and
The size of noise signal is closely bound up with the current operating temperature of ccd detector, and ccd detector current operating temperature is the highest, makes an uproar
Acoustical signal is the biggest；Accordingly, it would be desirable to utilize refrigerating plant that ccd detector is cooled down.Prior art is to add on ccd detector
Enter semiconductor refrigerating TEC CCD detection device is cooled down, realize CCD is visited by the chill surface temperature controlling TEC cooling piece
The operating temperature surveying device realizes controlling.But, for the hand-held ccd detector of some outdoor applications, ccd detector
Sensitivity requirement is the strictest, and the sole criterion of its sensitivity requirement is exactly the work signal to noise ratio that ccd detector is current, institute
When can not make its work with the simple operating temperature controlling ccd detector, current signal meets job requirement, can only make
It is close to the ccd detector work signal to noise ratio allowed.Meanwhile, the working battery electricity of the hand-held CCD detection device of outdoor application
Amount is extremely limited, how to ensure on the premise of not affecting measurement stability and accuracy, it is ensured that the longest work of equipment
Time is the problem being currently needed for solving.
Summary of the invention
The present invention devises the temperature control system of a kind of ccd detector refrigerating plant.This temperature control system is used exactly
In solving on the premise of not affecting measurement stability and accuracy so that the problem that the spectrometer equipment working time is the longest.
In order to make above-mentioned target be achieved, the technical scheme is that a kind of based on spectrometer, for CCD detection
The high energy efficiency intelligent temperature control system of device refrigerating plant, including: temperature sensor, it is connected with described ccd detector, is used for
Detect described ccd detector real time temperature, temperature signal is input to processes temperature signal module；Processes temperature signal module,
It is connected with described temperature sensor, and described processes temperature signal module includes that temperature signal amplifies and converting unit, and being used for will
Temperature signal amplifies and completes A/D conversion；Ccd data acquisition module, it is connected with described ccd detector, is used for gathering described
The size of the output signal of ccd detector, simultaneously output noise and the data of collection material；Semiconductor cooler TEC, its with
Described ccd detector is connected, for cooling down for ccd detector；Refrigeration power supply, it is connected with described control module, is used for being half
Conductor refrigeration TEC powers；Control module, itself and described processes temperature signal module, described semiconductor cooler TEC, described system
Cold power supply is connected, for temperature acquisition and control TEC circuit；Master cpu, it is adopted with described control module and described ccd data
Collection module be connected, by the signal to noise ratio calculating described ccd detector, receive described ccd detector current operating temperature and based on
Calculate the electricity of current refrigeration power supply, it is judged that whether the current operating temperature of described ccd detector and current signal enter ideal
State, sends refrigeration to control module and stops refrigeration instruction；Memory, it is connected with described master cpu, is used for storing described
Work ideal working temperature interval, ideal operation signal to noise ratio and the work of ccd detector gather data and mode of operation.
Described processes temperature signal module includes that temperature signal amplifying unit and converting unit, described amplifying unit are to institute
The temperature signal stating temperature sensor is amplified processing, and described converting unit is connected with described amplifying unit, by described amplification
The temperature voltage signal of unit is converted to exportable data signal.
Described master control is honest to be contrasted the current operating temperature of the described ccd detector obtained with ideal working temperature, raw
Become the TEC contactor signal of described control module；Described master control is honest by the work at present letter of the described ccd detector obtained
Make an uproar and contrast than with ideal operation signal to noise ratio, generate the TEC contactor signal of described control module；
Described memory is for the interval signal to noise ratio minimum with permission of the ideal working temperature storing described ccd detector: institute
Stating ideal working temperature interval is 0 DEG C to 20 DEG C, and the minimum signal to noise ratio of described permission is 150:1, and described mode of operation is high electricity
Mode of operation and low electricity mode of operation.
Described refrigeration power supply is direct current 3.7V lithium battery, and described refrigeration power supply kind contains battery control chip.
The high energy efficiency temperature control system of ccd detector refrigerating plant of the present invention is according to the preferable work of ccd detector
The relation making temperature and allow minimum signal to noise ratio, utilizes and controls device regulation semiconductor cooler TEC, thus regulate CCD detection
The operating temperature of device and work signal to noise ratio, it is achieved that the job stability of ccd detector and accuracy, it is ensured that Effect on Detecting
In the case of, it is to avoid the waste of refrigeration electric quantity of power supply.
Accompanying drawing explanation
Fig. 1 is that the high energy efficiency intelligent temperature based on spectrometer, for ccd detector refrigerating plant of the present invention controls
System schematic.
Fig. 2 is semiconductor chilling plate TEC structural representation of the present invention.
Detailed description of the invention
The present invention is described in further detail for embodiment below in conjunction with the accompanying drawings.
A kind of based on spectrometer, for the high energy efficiency intelligent temperature control system of ccd detector refrigerating plant, including: CCD
Detector, temperature sensor, processes temperature signal module, ccd data acquisition module, semiconductor cooler TEC, freeze power supply,
Control module, master cpu, memory.
As it is shown in figure 1, temperature sensor, it is connected with ccd detector, is used for detecting ccd detector real time temperature, by temperature
Degree signal is input to processes temperature signal module；Processes temperature signal module, it is connected with temperature sensor, processes temperature signal
Module includes that temperature signal amplifies and converting unit, for being amplified by temperature signal and completing A/D conversion；Ccd data gathers mould
Block, it is connected with ccd detector, for gathering the size of the output signal of ccd detector, simultaneously output noise and gathering thing
The data of matter；Semiconductor cooler TEC, it is connected with ccd detector, for cooling down for ccd detector；Refrigeration power supply, its with
Control module is connected, for powering for semiconductor refrigerating TEC；Control module, itself and processes temperature signal module, semiconductor refrigerating
Device TEC, refrigeration power supply are connected, for temperature acquisition and control TEC circuit；Master cpu, it is adopted with control module and ccd data
Collection module is connected, for calculating the signal to noise ratio of ccd detector, receiving the current operating temperature of ccd detector and calculate current system
The electricity of cold power supply, it is judged that whether the current operating temperature of ccd detector and current signal enter perfect condition, to controlling mould
Block sends refrigeration and stops refrigeration instruction；Memory, it is connected with master cpu, for storing the work ideal work of ccd detector
Make temperature range, ideal operation signal to noise ratio and work and gather data and mode of operation.Refrigerating plant includes the power supply and half that freezes
Conductor refrigeration TEC, refrigeration power supply is the senior lithium battery of 3.7V, containing battery control chip in battery.Master cpu is by reading
The data of battery control chip obtain the electricity of battery under current state.
As in figure 2 it is shown, be semiconductor chilling plate simple structure.The present invention uses by 2 pairs of p-types and N-type semiconductor warp
Being formed in parallel, referred to as thermoelectricity pushes away.Cold junction temperature can reach subzero 20～subzero 10 DEG C.
The mode of operation of ccd detector is divided into two kinds: a kind of be refrigeration electric quantity of power supply higher than 50% time mode of operation, separately
A kind of be refrigeration electric quantity of power supply less than 50% time mode of operation.
Pattern one: during spectrometer start, master cpu obtains electricity under current state by the data reading battery control chip
The electricity in pond, when judging to show that battery electric quantity is higher than 50%, master cpu will read high electricity mode of operation from memory,
Mode of operation now requires: the output signal of ccd detector and the ratio of noise signal minimum 200, ccd detector
Operating temperature interval is 0～20 DEG C.The concrete course of work is: ccd data acquisition module gathers current CCD from ccd detector
The output signal of detector and the size of noise signal, be input to master cpu, and master cpu reading program calculates and obtains current shape
Whether the signal to noise ratio under state is less than 200, and meanwhile, temperature sensor obtains the work temperature of current ccd detector from ccd detector
Degree, by incoming for temperature signal processes temperature signal module, temperature signal is amplified and carries out digital-to-analogue conversion by processes temperature signal module
After be input to control module, master cpu from control module read current ccd detector operating temperature, reading program judges CCD
Whether the operating temperature of detector interval the ideal operation of 0～20 DEG C, thus sends instruction to control module, control module to
Refrigeration power supply sends switching signal, thus the power supply that freezes is powered to semiconductor chilling plate TEC.When ccd detector signal to noise ratio and
When the operating temperature of ccd detector meets the requirement of mode of operation simultaneously, master cpu sends semiconductor refrigerating to control module
TEC shutdown signal.
Pattern two: during spectrometer start, master cpu obtains electricity under current state by the data reading battery control chip
The electricity in pond, when judging to show that battery electric quantity is less than 50%, master cpu will read low electricity mode of operation from memory,
Mode of operation now requires: the output signal of ccd detector and the ratio of noise signal minimum 150, concrete work
Process is: ccd data acquisition module gathers output signal and the size of noise signal of current ccd detector from ccd detector,
Being input to master cpu, master cpu reading program calculates whether the signal to noise ratio obtained under current state is less than 150, thus to control
Module sends instruction, and control module sends switching signal to refrigeration power supply, thus the power supply that freezes supplies to semiconductor chilling plate TEC
Electricity.When the signal to noise ratio of ccd detector meets the requirement of mode of operation, master cpu sends semiconductor refrigerating TEC to control module
Shutdown signal.
Although embodiment of the present invention are disclosed as above, but it is not restricted in specification and embodiment listed
Using, it can be applied to various applicable the field of the invention completely, for those skilled in the art, and can be easily
Realizing other amendment, therefore under the universal limited without departing substantially from claim and equivalency range, the present invention does not limit
In specific details with shown here as the legend with description.
Claims (5)
1. one kind based on spectrometer, for the intelligent temperature control system of ccd detector refrigerating plant, it is characterised in that including:
Temperature sensor, it is connected with described ccd detector, is used for detecting described ccd detector real time temperature, by temperature signal
It is input to processes temperature signal module；
Processes temperature signal module, it is connected with described temperature sensor, and described processes temperature signal module includes temperature signal
Amplify and converting unit, for temperature signal being amplified and completing A/D conversion；
Ccd data acquisition module, it is connected with described ccd detector, for gather described ccd detector output signal, with
Time output noise size and gather material data；
Semiconductor cooler TEC, it is connected with described ccd detector, for cooling down for ccd detector；
Refrigeration power supply, it is connected with control module, for powering for semiconductor refrigerating TEC；
Described control module, itself and described processes temperature signal module, described semiconductor cooler TEC, described refrigeration power supply phase
Even, for temperature acquisition and control TEC circuit；
Master cpu, it is connected with described control module and described ccd data acquisition module, for calculating described ccd detector
Signal to noise ratio, the current operating temperature receiving described ccd detector and the electricity of calculating current refrigeration power supply, it is judged that described CCD visits
Whether current operating temperature and the current signal of surveying device enter perfect condition, send refrigeration to control module and stopping refrigeration referring to
Order, if entering perfect condition, sending stopping refrigeration instruction, if not entering perfect condition, sending refrigeration instruction；
Memory, it is connected with described master cpu, for storing the work ideal working temperature interval of described ccd detector, reason
Think work signal to noise ratio and collecting work data and mode of operation.
2. the intelligent temperature control system of ccd detector refrigerating plant as claimed in claim 1, it is characterised in that described temperature
Degree signal processing module includes temperature signal amplifying unit and converting unit, and described amplifying unit is to described temperature sensor
Temperature signal is amplified processing, and described converting unit is connected with described amplifying unit, by the temperature voltage of described amplifying unit
Signal is converted to exportable data signal.
3. the intelligent temperature control system of ccd detector refrigerating plant as claimed in claim 1, it is characterised in that described master
The current operating temperature of the described ccd detector obtained is contrasted by control CPU with ideal working temperature, generates described control module
TEC contactor signal；The work at present signal to noise ratio of the described ccd detector obtained is believed by described master cpu with ideal operation
Make an uproar comparison ratio, generate the TEC contactor signal of described control module.
4. the intelligent temperature control system of ccd detector refrigerating plant as claimed in claim 1, it is characterised in that described in deposit
Reservoir is for the interval signal to noise ratio minimum with permission of the ideal working temperature storing described ccd detector: described ideal working temperature
Interval is 0 DEG C to 20 DEG C, and the minimum signal to noise ratio of described permission is 150:1, and described mode of operation is high electricity mode of operation and low electricity
Amount mode of operation.
5. the intelligent temperature control system of ccd detector refrigerating plant as claimed in claim 1, it is characterised in that described system
Cold power supply is direct current 3.7V lithium battery, containing battery control chip in described refrigeration power supply.
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| CN201410155940.8A CN103954088B (en) | 2014-04-17 | 2014-04-17 | A kind of based on spectrometer, for the high energy efficiency intelligent temperature control system of ccd detector refrigerating plant |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62239076A (en) * | 1986-04-11 | 1987-10-19 | Mitsubishi Electric Corp | Target detector |
| CN1752881A (en) * | 2004-09-21 | 2006-03-29 | 新医科技股份有限公司 | Temperature feed back control device of large surface area digital X-ray plate detector and its method |
| CN1797749A (en) * | 2004-12-24 | 2006-07-05 | 上海雷硕医疗器械有限公司 | Heat elimination structure in low noise in use for fast spectral analysis modules under weak light |
| JP2008124624A (en) * | 2006-11-09 | 2008-05-29 | Hitachi Kokusai Electric Inc | Solid-state imaging device |
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2014
- 2014-04-17 CN CN201410155940.8A patent/CN103954088B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62239076A (en) * | 1986-04-11 | 1987-10-19 | Mitsubishi Electric Corp | Target detector |
| CN1752881A (en) * | 2004-09-21 | 2006-03-29 | 新医科技股份有限公司 | Temperature feed back control device of large surface area digital X-ray plate detector and its method |
| CN1797749A (en) * | 2004-12-24 | 2006-07-05 | 上海雷硕医疗器械有限公司 | Heat elimination structure in low noise in use for fast spectral analysis modules under weak light |
| JP2008124624A (en) * | 2006-11-09 | 2008-05-29 | Hitachi Kokusai Electric Inc | Solid-state imaging device |
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Effective date of registration: 20160512 Address after: 101318 Shunyi District airport economic core area Yuhua Road, building 5, room 4, floor 002, room 28, No. Applicant after: BEIJING HT NOVA TESTING TECHNOLOGY CO., LTD. Address before: 101100 Beijing city Tongzhou District Cuiping Building No. 20, taking 20 Applicant before: Beijing Mande Technology Co. Ltd. |
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