CN104864978A - Optical fiber temperature measurement system of data center machine room - Google Patents
Optical fiber temperature measurement system of data center machine room Download PDFInfo
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- CN104864978A CN104864978A CN201510206206.4A CN201510206206A CN104864978A CN 104864978 A CN104864978 A CN 104864978A CN 201510206206 A CN201510206206 A CN 201510206206A CN 104864978 A CN104864978 A CN 104864978A
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Abstract
The invention provides an optical fiber temperature measurement system of a data center machine room, wherein optical fiber temperature measurement technology is applied in machine room construction of a data center. The optical fiber temperature measurement system has advantages of multiple points in one line, high data transmission stability, easy maintenance, easy control, simple mounting, high electromagnetic interference resistance, high voltage resistance, no distance restriction and high reliability. Many defects in resistance temperature measurement mode are greatly improved, so that the temperature of the data center machine is effectively monitored. The optical fiber temperature measurement system comprises a temperature measurement optical fiber, an optical fiber demodulator and a computer. The temperature measurement optical fiber is continuously laid around heating equipment and/or machine room ventilation opening of which the temperature is to be acquired. The light source signal transmitting end of the optical fiber demodulator is connected with the starting end of the temperature measurement optical fiber. The tail end of the temperature measurement optical fiber is connected with the signal receiving end of the optical fiber demodulator. The communication interface of the optical fiber demodulator is connected with the computer.
Description
Technical field
The present invention relates to Fiber Optic Pyrometer field, particularly relate to a kind of optical fiber temperature measurement system of data center machine room.
Background technology
Current data center as the development of emerging dats services with increment rapidly.Data center (data center), or be called server farm (server farm), refer to the facility for settling computer system and associated components.The construction of data center's infrastructure, very important link is the construction of computer room, and generally it also comprises environmental control equipment (such as air-conditioning, flame snuffer) and safety equipment.Data center take a building, building a room, one or more layers, even Zheng Zhuan building.Most equipment is usually placed on to be had in the frame of interlayer.These frames are in a row placed, and form a corridor.This allows people from accessing interlayer above or below.The memory device of server from the server of 1U to Independent Silos is very different dimensionally, some equipment, as mainframe computer and the frame of memory device usually as them so large.Along with the scale of data center is increasing, more and more higher especially to the requirement of the physical environment of data center machine room, the particularly environment temperature of data center machine room, needs strictly controlled.How improving the environment temperature in the management level of machine room, Real-Time Monitoring machine room, feedback regulation eliminate the problems such as machine room local temperature is too high or too low, is the key problem of data center machine room management.
In prior art, the general resistance temperature mode that adopts gathers machine room temperature data.This thermometric mode adopts the mode of the point type layout of dispersion in point for measuring temperature set temperature sensor collecting temperature data.But no matter be resistive elements or traditional expansion type element, all there is measurement range little, the drawback of space temperature change in room cannot be measured.Want monitoring each equipment of machine room and space temperature change, probe (test point) and a large amount of connecting lines can only be increased, installation, later maintenance is in earlier stage caused all to there is inconvenience, and poor anti jamming capability in Signal transmissions, after a period of use, capital produces zero point drift, makes measurement produce error, therefore just needs maintainer to recalibrate at set intervals.
Summary of the invention
The present invention is according to prior art Problems existing, a kind of optical fiber temperature measurement system of data center machine room is provided, Fiber Optic Pyrometer is applied in the computer room construction of data center, there is a line multiple spot and data transmit stable feature, easy care, easy to control, simple installation, anti-strong electromagnetic and anti-high voltage, not by distance controlling, reliability is high, improves a lot of drawbacks of resistance temperature measurement mode greatly, makes the temperature of data center machine room obtain effective monitoring.
Technical scheme of the present invention is:
An optical fiber temperature measurement system for data center machine room, is characterized in that, comprises temperature-measuring optical fiber, fiber demodulator and computing machine; Described temperature-measuring optical fiber is laid continuously around the heat-producing device and/or equipment room ventilation air port of wanted collecting temperature, the light signal transmitting terminal of described fiber demodulator connects the initiating terminal of temperature-measuring optical fiber, the signal receiving end of the tail end connecting fiber detuner of temperature-measuring optical fiber, the communication interface of described fiber demodulator connects computing machine; The temperature signal of each luminous point position of described fiber demodulator on temperature-measuring optical fiber described in Real-time Collection, is converted to electric signal transmission to computing machine the temperature signal of each luminous point position collected; Described computing machine be used for analyzing and processing gather temperature information and Graphics Processing result.
Described data center machine room comprises the rack set in a row, there is below the described rack set in a row the new wind of computer-room air conditioning system and the mixed wind air port of return air, described temperature-measuring optical fiber is along the left surface of each rack, bottom surface, right flank continuous laying, often arrange between rack and be together in series by optical fiber again, then by optical fiber along every exhaust outlet around laying.
Technique effect of the present invention:
The optical fiber temperature measurement system of a kind of data center machine room provided by the invention, has following technique effect:
1. measurement range is large: the point type distribution comparing original sensor, whole optical fiber can be seen and be made a sensor, being more evenly distributed of optical fiber, and scope more comprehensively.Measurement range is the longest reaches tens kms.Lay simple, no matter use single mode or multimode optical fiber, according to concrete engineering situation, suitable optical fiber and laying scheme can be found.
2. density measurement is large: an optical fiber can provide the information of up to ten thousand measurement points, a temperature sensing point just can be had every 1-2 rice, temperature with regard to machine room entirety controls, and optical fiber itself can be allowed so quick for installation easy and with low cost, almost Maintenance free; Whole optical cable is not only used as Signal transmissions, more entirely be used as temperature sensing to use, heat detection coverage is its total length 100%, arranging of alarm region freely can be arranged in optical cable total length by software, warning positioning precision is high, the most I of its search coverage reaches 1 meter, and no matter how on-the-spot subregion changes, and all can meet the demands.
3. be convenient to safeguard: the particular location that can be indicated breakpoint when optical cable breaks down by monitor supervision platform on optical cable total length curve, be conducive to the investigation of the fault of system and keep in repair rapidly;
4. system simple installation: Signal transmissions and a detection optical cable, the scene that is mounted to only needs easily to complete installment work by fixing for detecting optical cable;
5. reliability is high: probe portion adopts optical transport mode completely, the explosion-proof lightning protection of optical fiber intrinsic safety, and can stop electromagnetic interference influence completely; The design of optical cable durability own is excellent, and the life-span of detecting optical cable can for 30 years, and to environmental impact as temperature, pressure and moisture fluctuation have resistibility, is equally also applicable to more dust and contains in the air of corrosive substance;
Accompanying drawing explanation
Fig. 1 is that the rack of the temperature-measuring optical fiber of temp measuring system of the present invention arranges schematic diagram.
Fig. 2 is the scenery resource quality schematic diagram of the temperature-measuring optical fiber of temp measuring system of the present invention.
Reference numeral lists as follows: 1-temperature-measuring optical fiber, 2-rack, 3-air port.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are described in further detail.
An optical fiber temperature measurement system for data center machine room, comprises temperature-measuring optical fiber, fiber demodulator and computing machine; Temperature-measuring optical fiber is laid continuously around the heat-producing device and/or equipment room ventilation air port of wanted collecting temperature, the light signal transmitting terminal of fiber demodulator connects the initiating terminal of temperature-measuring optical fiber, the signal receiving end of the tail end connecting fiber detuner of temperature-measuring optical fiber, the communication interface of fiber demodulator connects computing machine; The temperature signal of each luminous point position of fiber demodulator on temperature-measuring optical fiber described in Real-time Collection, is converted to electric signal transmission to computing machine the temperature signal of each luminous point position collected; Computing machine be used for analyzing and processing gather temperature information and Graphics Processing result.
Data center machine room of the present invention comprises the rack set in a row, has the new wind of computer-room air conditioning system and the mixed wind air port of return air below the rack set in a row.Temperature-measuring optical fiber is along the left surface of each rack, bottom surface, right flank continuous laying, often arrange between rack and be together in series by optical fiber again, in addition, regulate for coordinating Air-conditioning, air-conditioning system is mixed air port (i.e. air conditioner fresh air and return air Mixed Zone) place and is also arranged temperature-measuring optical fiber, robot control system(RCS) is mixed air port by cabinet temperature in sensing module and air-conditioning and is gone out temperature, regulates the opening degree of air-conditioning air-valve in real time, thus can allow air-conditioning system more stable, run efficiently.
As shown in Figure 1, the rack of the temperature-measuring optical fiber of temp measuring system of the present invention arranges schematic diagram.Temperature-measuring optical fiber 1, along the left surface of each rack 2, bottom surface, right flank continuous laying, is often arranged between rack and is together in series by optical fiber.As shown in Figure 2, be the scenery resource quality schematic diagram of temperature-measuring optical fiber of temp measuring system of the present invention.After rack has been laid by temperature-measuring optical fiber, again along air port 3 surrounding continuous laying, after optical fiber has been laid, the light signal transmitting terminal of fiber demodulator is connected the initiating terminal of temperature-measuring optical fiber, the signal receiving end of the tail end connecting fiber detuner of temperature-measuring optical fiber, the communication interface of fiber demodulator connects computing machine; The temperature signal of each luminous point position of fiber demodulator on temperature-measuring optical fiber described in Real-time Collection, is converted to electric signal transmission to computing machine the temperature signal of each luminous point position collected; Computing machine be used for analyzing and processing gather temperature information and Graphics Processing result.
The principle adopting optical fiber temperature-measurement is that the continuous laser ripple that optical fiber temperature measurement system is sent by laser diode enters optical fiber.When light wave moves down along fiber glass core, polytype radiating scattering can be produced.As Rayleigh (Rayleigh) scattering, Brillouin's (Brillouin) scattering and Raman (Raman) scattering etc.Wherein Raman scattering is a kind of scattered light the most responsive to temperature.Every bit in optical fiber all can produce Raman scattering, and the Raman scattering produced only is evenly distributed in whole Space Angle.Energy exchange is there is and produces in Raman scattering because the thermal vibration of optical fiber molecule and photon interact, specifically, if a part of luminous energy is converted into thermal vibration, so a light longer than optical source wavelength will be sent, be called stokes light (Stokes light), if a part of thermal vibration is converted into luminous energy, so by sending a light shorter than optical source wavelength, be called anti-Stokes light (Anti-Stokes light).Wherein Stokes light intensity is very little by the impact of temperature, can ignore, and the intensity variation with temperature of Anti-Stokes light and changing.The intensity ratio of Anti-Stokes light and Stokes light provides a functional relation about temperature.When light transmits in a fiber, part Raman diffused light (Raman Back Scattering light) returns along the former road of optical fiber, is received by fiber-optic probe unit.The monitoring to exterior temperature change is realized by the change of the intensity rate measuring Anti-Stokes light and Stokes light in Raman Back Scattering light.Under the triggering of synchronous control unit, optical transmitting set produces a heavy current pulse, and this pulsed drive semiconductor laser produces powerful light pulse, and notes in people's laser instrument tail optical fiber.From the light pulse that laser instrument tail optical fiber exports. enter through light path coupling apparatus in the optical fiber be placed on calibration cell, this optical fiber is used for system calibrating, enters sensor fibre more afterwards, experiences the temperature field of measurand.After laser in a fiber scattering occurs, the Raman rear orientation light carrying temperature information turns back in light path coupling apparatus.Utilizing emitted light not only can be coupled directly to sensor fibre by light path coupler. and the Raman scattering of difference scattering can returned and emission wavelength is optically coupled to optical splitter.Optical splitter is made up of the optical filter of two different centre wavelengths respectively, leaches Stokes light and Anti-Stokes light respectively, to make a gift to someone data acquisition and procession unit through receiver.Finally send into computing machine and carry out the storage of temperature, display and control.
Herein means bright, more than describe and contribute to those skilled in the art and understand the invention, but and the protection domain of unrestricted the invention.Any enforcement improving the equivalent replacement described above, modification and/or delete numerous conforming to the principle of simplicity and carry out not departing from the invention flesh and blood, all falls into the protection domain of the invention.
Claims (2)
1. an optical fiber temperature measurement system for data center machine room, is characterized in that, comprises temperature-measuring optical fiber, fiber demodulator and computing machine; Described temperature-measuring optical fiber is laid continuously around the heat-producing device and/or equipment room ventilation air port of wanted collecting temperature, the light signal transmitting terminal of described fiber demodulator connects the initiating terminal of temperature-measuring optical fiber, the signal receiving end of the tail end connecting fiber detuner of temperature-measuring optical fiber, the communication interface of described fiber demodulator connects computing machine; The temperature signal of each luminous point position of described fiber demodulator on temperature-measuring optical fiber described in Real-time Collection, is converted to electric signal transmission to computing machine the temperature signal of each luminous point position collected; Described computing machine be used for analyzing and processing gather temperature information and Graphics Processing result.
2. the optical fiber temperature measurement system of data center machine room according to claim 1, it is characterized in that, described data center machine room comprises the rack set in a row, there is below the described rack set in a row the new wind of computer-room air conditioning system and the mixed wind air port of return air, described temperature-measuring optical fiber is along the left surface of each rack, bottom surface, right flank continuous laying, often arrange between rack and be together in series by optical fiber again, then by optical fiber along every exhaust outlet around laying.
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Cited By (5)
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| CN107121217A (en) * | 2017-04-27 | 2017-09-01 | 北京石油化工学院 | Soil moisture detection means, system and heating system in earth source heat pump |
| CN108007601A (en) * | 2016-10-31 | 2018-05-08 | 中国移动通信集团设计院有限公司 | The optical fiber grating temperature-measuring system of communications equipment room, communication machine room temperature detection method |
| CN109757053A (en) * | 2017-11-08 | 2019-05-14 | 鄂尔多斯市煤炭交易中心有限公司 | A kind of data center machine room system |
| CN111982348A (en) * | 2020-08-20 | 2020-11-24 | 中国科学院工程热物理研究所 | Rotary optical fiber temperature measurement system |
| CN112747430A (en) * | 2020-12-30 | 2021-05-04 | 深圳市利拓光电有限公司 | Indoor temperature regulation and control method, device and equipment based on laser equipment |
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Cited By (6)
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| CN111982348A (en) * | 2020-08-20 | 2020-11-24 | 中国科学院工程热物理研究所 | Rotary optical fiber temperature measurement system |
| CN112747430A (en) * | 2020-12-30 | 2021-05-04 | 深圳市利拓光电有限公司 | Indoor temperature regulation and control method, device and equipment based on laser equipment |
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Application publication date: 20150826 |