CN107121198A - A kind of fan cooling control system gathered based on NRF905 non-contact temperatures - Google Patents
A kind of fan cooling control system gathered based on NRF905 non-contact temperatures Download PDFInfo
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- CN107121198A CN107121198A CN201710325098.1A CN201710325098A CN107121198A CN 107121198 A CN107121198 A CN 107121198A CN 201710325098 A CN201710325098 A CN 201710325098A CN 107121198 A CN107121198 A CN 107121198A
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- 238000001816 cooling Methods 0.000 title claims abstract description 17
- 238000010438 heat treatment Methods 0.000 claims abstract description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 6
- 239000010935 stainless steel Substances 0.000 claims description 6
- 238000004364 calculation method Methods 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 2
- 238000012544 monitoring process Methods 0.000 description 6
- 238000004378 air conditioning Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000000422 nocturnal effect Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/02—Constructional details
- G01J5/04—Casings
- G01J5/046—Materials; Selection of thermal materials
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20709—Modifications to facilitate cooling, ventilating, or heating for server racks or cabinets; for data centers, e.g. 19-inch computer racks
- H05K7/20763—Liquid cooling without phase change
- H05K7/20781—Liquid cooling without phase change within cabinets for removing heat from server blades
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20709—Modifications to facilitate cooling, ventilating, or heating for server racks or cabinets; for data centers, e.g. 19-inch computer racks
- H05K7/20836—Thermal management, e.g. server temperature control
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- Computer Hardware Design (AREA)
- General Engineering & Computer Science (AREA)
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- Microelectronics & Electronic Packaging (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The present invention relates to a kind of fan cooling control system gathered based on NRF905 non-contact temperatures, including：Temperature acquisition and fan control device, it is arranged on the heating position of rack, including the first housing (105) and the first processor (110), the first LCDs (108), infrared temperature sensor (103), fan (104) and the first NRF905 radio receiving transmitting modules (107) that are fixedly connected with the first housing (105)；Wireless data receives and uploaded device, it is arranged far from the Control Room of rack, including the second housing (201) and the second processor (207), the second LCDs (205) and the 2nd NRF905 radio receiving transmitting modules (204) that are connected with the second housing (201).Compared with prior art, the present invention obtains the temperature and environment temperature of target device by non-contact temperature sensor, and used fan can further take radiating strategy according to collecting temperature, improve problems of excessive heat, promote heat exchange.
Description
Technical field
The present invention relates to a kind of temperature detection and control system, NRF905 non-contact temperatures are based on more particularly, to one kind
The fan cooling control system of collection.
Background technology
With cloud computing and the arrival in big data epoch, large-scale data center has obtained extensive portion in the world
Affix one's name to, the modern information technologies such as cloud computing, internet, Internet of Things, big data turn into the mainstay of Chinese national economy.Information
The basis of change is data center, the development of data center of China is swift and violent, and by 2015, data center of China total amount alreadyd exceed 40
Ten thousand, it is contemplated that, it is following to build more data centers to meet our demands to data processing and storage.
At present, data center of China year power consumption exceedes the 1.5% of Analyzing Total Electricity Consumption, and air-conditioning equipment occupies IDC machines
More than the 40% of room operation maintenance power consumption, although the refrigerating capacity of the average air-conditioning of data center of China reaches average institute of data center
More than twice of refrigerating capacity is needed, but there are still the problem of computer room hot-spot, this is highly detrimental to the steady of server in machine room
Fixed operation, it is the stabilization of server in machine room, reliable for telecommunications, finance, security and other enterprises dependent on internet
Operation is vital.
According to national newest issue《Constructing data center specification》, IDC temperature need to be maintained in the range of 18-28 DEG C,
The optimum working temperature of information technoloy equipment is 20-25 DEG C.In order that IDC temperature (20-25 DEG C) in the range of best effort, substantial amounts of
Heat dissipation equipment is used, such as air-conditioning, VMC, ventilating fan and cabinet internal fan.American Electric Power Conversion Corporation adjusts
The fruit that comes to an end shows, the refrigeration demand of the ratio between refrigerating capacity needed for the data center module currently run and air conditioner refrigerating amount than less than 50%,
This illustrates under the average operation level of current computer room that the refrigerating capacity of computer room is enough, and the key of server reliability service is to fill
Code insurance demonstrate,proves the flowing of air, improves cold wind and equipment heat exchanger effectiveness.Based on above-mentioned principle, multiple machines are visited by scene on the spot
Room, it is found that current computer room air flow is primarily present following problem.
1. the air flow of data center module leans on the blast of air-conditioning system to produce substantially, the blast deficiency that there is subregion is existing
As causing hot-spot to produce, being unfavorable for heat exchange.
2. the power of each rack, number of servers are different, do not taken measures for this distributed situation, it is unified
Exhaust way can not meet radiating requirements.
3. the temperature acquisition mode of current rack is all the temperature of air near acquisition server, not to server
Key position either temperature focus detected, can not effective guarantee server safe and stable operation.
Due to reasons such as the computer room structure of data center module, rack position, blast, the heat exchange degree of server cabinet is not
Consistent, the problem of having hot-spot produces.Existing server fan is to adjust rotating speed according to environment temperature, not root
Adjustment of rotational speed is carried out according to equipment temperature of key part.Existing server temperature sensor is not carried out to server key position
Monitoring, integrates temperature and uses wired mode, in the occasion of this complex circuit of data center, in layout, transformation process
In it is comparatively laborious.Thus need design one kind can measuring apparatus temperature and environment temperature, improve hot-spot problem, using just
Prompt radiating and temperature monitoring system.
The content of the invention
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide one kind is non-based on NRF905
The fan cooling control system of contact temperature collection, hot-spot problem and monitoring temperature are improved available for data center,
Suitable for all kinds of on-line monitorings and temperature control to the conditional equipment of running temperature.
The purpose of the present invention can be achieved through the following technical solutions：
A kind of fan cooling control system gathered based on NRF905 non-contact temperatures, for the radiating of rack, including：
Temperature acquisition and fan control device, are arranged on the heating position of rack, including the first housing and with it is described
First processor, the first LCDs, infrared temperature sensor, fan and the first NRF905 that first housing is fixedly connected without
Line transceiver module；
Wireless data receives and uploaded device, is arranged far from the Control Room of rack, including the second housing and with it is described
The second housing connection second processor, the second LCDs and the 2nd NRF905 radio receiving transmitting modules,
Described infrared temperature sensor collection rack and environment temperature, first processor is sent to by temperature information, the
One processor adjusts rotation speed of the fan according to temperature information, and temperature information is sent to by the first NRF905 radio receiving transmitting modules
2nd NRF905 radio receiving transmitting modules, shown by the first LCDs, the 2nd described NRF905 radio receiving transmitting modules will
Temperature information is sent to second processor, and second processor shows temperature information by the second LCDs.
Described system also includes host computer, described wireless data receive and upload device also include respectively with second at
The RS232 serial ports of device and host computer connection is managed, temperature information is sent to upper by described second processor by RS232 serial ports
Machine, described host computer calculates the mean temperature of corresponding region according to temperature information, and carries out early warning according to result of calculation.
Described wireless data, which receives and uploaded device, also includes USB power supply interfaces, described USB power supply interfaces with it is upper
Machine is connected.
Described starting fan rotating speed is 1/2 rated speed, rotating speed=alarm temperature/(2* alarm temperatures-current during operation
Temperature) * rated speeds.
Described temperature information includes the target rack and its area information of institute's collecting temperature, and described mean temperature passes through
The average value of the temperature of all temperature acquisition points in the region.
The first described housing and the second housing are stainless steel.
The first described housing is buckled provided with two fixations.
Described infrared temperature sensor is connected by fix bar with the first housing.
The first described housing bottom is provided with 220 volts of alternating-current switch power supplys being connected with fan.
The first described housing side is provided with the ship type switch being connected with described Switching Power Supply.
Compared with prior art, the present invention has advantages below：
(1) temperature and environment temperature of target device, used fan are obtained by non-contact temperature sensor
Radiating strategy can be further taken according to collecting temperature, improves problems of excessive heat, promotes heat exchange.
(2) information is transmitted using wireless technology, realizes the visual control of temperature information, reduce wiring.
(3) wireless data receives and uploaded device and the temperature information collected is sent into host computer, and it is right that host computer passes through
The setting of alarm temperature, it is possible to achieve on-line monitoring and alarm to equipment, so as to ensure the reliable of data center machine room operation
Property and stability.
(4) wireless data receives and uploaded device and is connected by USB power supply interfaces with host computer, and host computer can be used directly
Output voltage.
(5) temperature information of transmission includes corresponding region information, the mean temperature in the region can be obtained, if measured point temperature
More than mean temperature, host computer carries out early warning, monitoring personnel can be caused to pay attention to.
(6) first housings and the second housing are stainless steel, rapid heat dissipation, high mechanical strength.
(7) first housings are buckled provided with two fixations, easily can be fixed on rack.
(8) infrared temperature sensor is connected by fix bar with the first housing, is conducive to expanding temperature sensing area.
(9) ship type switchs pressure-resistant flow-resistant capacity by force, easy to use.
Brief description of the drawings
Fig. 1 is the structural representation of the present embodiment temperature acquisition and fan control device；
Fig. 2 is the structural representation that the present embodiment wireless data received and uploaded device；
Fig. 3 is the circuit connection diagram of the present embodiment system temperature acquisition and fan control device；
Fig. 4 is the circuit connection diagram that the present embodiment wireless data received and uploaded device；
Fig. 5 is the control flow chart of the present embodiment temperature acquisition and fan control device；
Fig. 6 is the present embodiment line data receiver and the control flow chart for uploading device.
Embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.The present embodiment is with technical solution of the present invention
Premised on implemented, give detailed embodiment and specific operating process, but protection scope of the present invention is not limited to
Following embodiments.
Embodiment
As shown in figures 1-4, a kind of fan cooling control system gathered based on NRF905 non-contact temperatures, for machine
The radiating of cabinet, including：
Temperature acquisition and fan control device, are arranged on the heating position of rack, including the first housing 105 and with first
First processor 110 that housing 105 is fixedly connected, the first LCDs 108, infrared temperature sensor 103, the and of fan 104
First NRF905 radio receiving transmitting modules 107, infrared temperature sensor 103 is connected by fix bar 102 with the first housing 105, the
The bottom of one housing 105 is provided with 220 volts of alternating-current switch power supplys 106 being connected with fan 104, sideways provided with connecting with Switching Power Supply 106
The ship type switch 109 connect, top buckles 101 provided with two fixations；
Wireless data receives and uploaded device, is arranged far from the Control Room of rack, including the second housing 201 and with the
The second processor 207 of two housings 201 connection, the second LCDs 205, the 2nd NRF905 radio receiving transmitting modules 204, USB
Power supply interface 202, RS232 serial ports 203 and second switch 206, USB power supply interfaces 202 and RS232 serial ports 203 connect with host computer 3
Connect；
Infrared temperature sensor 103 gathers rack and environment temperature, and temperature information is sent into first processor 110, the
One processor 110 adjusts the rotating speed of fan 104 according to temperature information, and temperature information is passed through into the first NRF905 radio receiving transmitting modules
107 are sent to the 2nd NRF905 radio receiving transmitting modules 204, are shown by the first LCDs 108, and the 2nd NRF905 is wirelessly received
Temperature information is sent to second processor 207 by hair module 204, and temperature information is passed through the second liquid crystal by second processor 207
Display screen 205 is shown, and temperature information is sent into host computer 3 by RS232 serial ports 203, and host computer 3 is calculated according to temperature information
The mean temperature of corresponding region, and early warning is carried out according to result of calculation.
The initial speed of fan 104 is the half of rated speed, after startup, its rotating speed=alarm temperature/2* alarm temperature-when
Preceding temperature * rated speeds.
First housing 105 and the second housing 201 are stainless steel.
In the present embodiment, the core of first processor 110 is the STM32 chips of ST companies, the first LCDs
108th, the signal pins of infrared temperature sensor and the first NRF905 radio receiving transmitting modules are all direct with core chip pin
Connection, LCDs is the liquid crystal display of 320*240 pixels；Infrared temperature sensor measurement accuracy is 0.5 DEG C；Ship type is opened
It is 250 volts to close 109 maximums pressure-resistant, and maximum resistance to stream is 6A；Switching Power Supply 106 is AC 220 V control source, 10-14 volt direct currents
Voltage output, maximum output current is 5A；The rated voltage of fan 104 is 12V, and rated current is 0.7A, and size is 120*
120*38mm, maximum (top) speed is 6200 revs/min；NRF905 is wireless module, including a communication antenna is for strengthening signal
Also NRF905 chips and its peripheral circuit, it is directly connected to processor pin, and supply voltage is 3.3 volts, is less than 1GHz
Wireless data sending chip, the skyborne transmission rate of wireless data is 50kbps, the reachable+10dBm of highest transmission power, is received sensitive
Spend for -100dBm, 512 communication frequencies of support；Case material is stainless steel material, and the L-shaped length of shape is according to server cabinet
Size depending on, according to server, by taking 60 centimetres of wide server cabinets as an example, the length of housing is 70 centimetres, a width of 15 lis
Rice, is highly 20 centimetres, has two to buckle on housing, for fixing device.Also have and first processor in first housing 105
The motor drive controller 111 of 110 connections.
The core of second processor 207 is model STC89C52RC 51 single-chip microcomputers and its peripheral circuit, with 8 micro-controls
Device processed, 4kB memory spaces, 256BRAM, it is controlled and data pin, second with serial port circuit 208, the second LCDs 205
The pin of NRF905 radio receiving transmitting modules 204 is joined directly together；The pixel of second LCDs 205 is 128*64；USB power supply interfaces
202 receive and upload the power input of device as wireless data, and 5 volts of control source is provided for device；RS232 serial ports
203 include the part of serial port circuit 208 and DB9 interfaces；Second housing 201 is built-in with processor core plate module, serial port circuit 208
Part and connection terminal, the material of the second housing 201 are stainless steel material, are shaped as cuboid, 10 centimetres, a width of 15 centimetres,
Highly it is 20 centimetres.
There are upper computer software, including serial port setting region part, alarm setting region part, data display in host computer 3
Region part, writing for software is write on Visual Basic environmental basis；Serial port setting region is used for configuring serial ports
Serial port and serial ports switch；Alarm setting region can set the upper and lower bound of temperature alarming, show current alerts shape
State；Data display area part show serial ports upload regional, the temperature information of rack, have beginning, stop, exiting by
Button.
The present embodiment device is in use, can follow the steps below：
1. temperature acquisition and fan control device are buckled into 101 fixed at server exhaust outlet by fixed, it will switch
The plug of power supply 106 is connected to 220 volts of AC powers, and USB power supply interfaces 202 are connected to 5 volts of power supply interfaces, open upper computer software；
2. opening second switch 206 and 220 volts of alternating-current switch power supplys 106, fan 104 is initial to be turned with specified 1/2 rotating speed
It is dynamic；
3. setting the serial ports selected section and alarm temperature setting unit of upper computer software, start button is clicked on；
4. the infrared temperature sensor 103 of temperature acquisition and fan control device measures the temperature of fan outlet, temperature
Information is read by first processor 110, and the rotating speed of the regulation fan 10 of first processor 110 is：
Alarm temperature/(2* alarm temperatures-Current Temperatures) * rated speeds
Temperature data is sent to the first NRF905 radio receiving transmitting modules 107 by first processor 110, and temperature information is sent
Go out, while also supplying the displays temperature information of the first LCDs 108；
5. temperature information is sent to second processor 207, second processor by the 2nd NRF905 radio receiving transmitting modules 204
Temperature information is sent to host computer 3 by 207 by 208 turns of serial port circuit by RS232 serial ports 203, while also transmitting data to
The displays temperature result of second LCDs 205；
6. target rack of the temperature information that host computer 3 is received by RS232 serial ports 203 comprising institute's collecting temperature and its
Area information, the flag bit that host computer 3 reads response is shown in the text box specified, and region is calculated to obtain by average algorithm
Average temperature value is shown in regional temperature text box, obtained temperature information with set alarm temperature value compared with, if
Higher than alarm temperature value, the too high state instruction block of temperature will become red.
7. above-mentioned 4-6 steps were circulated every 1 second.
Apparatus of the present invention temperature detection of table 1 and heat dissipating state table
| Computer room grade | Initial rack mean temperature | Implement rear rack mean temperature | Averagely reduce temperature |
| A | 24.4℃ | 23.5℃ | 0.9℃ |
| B | 26.5℃ | 24.9℃ | 1.6℃ |
| C | 31.1℃ | 27.8℃ | 3.3℃ |
The present embodiment in A, B, C three kinds of computer rooms respectively in grade to be tested, and test period is 24 hours, experiment
When, outdoor day temperature is 30-34 DEG C, and nocturnal temperature is 20-28 DEG C.When experiment starts, the temperature of rack as shown in table 1, will
Equipment is opened, and is found after operation a period of time, cabinet temperature is decreased obviously, in grade relatively low (C) computer room, because temperature will
Ask relatively low, computer room is relatively old, improvement is the most obvious after experiment is implemented.The present invention can promote cold wind to utilize,
Serve the effect of energy-conservation, it is adaptable to reducing energy consumption of old computer room etc..
Claims (10)
1. a kind of fan cooling control system gathered based on NRF905 non-contact temperatures, for the radiating of rack, its feature
It is, including：
Temperature acquisition and fan control device, are arranged on the heating position of rack, including the first housing (105) and with it is described
First processor (110) that first housing (105) is fixedly connected, the first LCDs (108), infrared temperature sensor
(103), fan (104) and the first NRF905 radio receiving transmitting modules (107)；
Wireless data receives and uploaded device, is arranged far from the Control Room of rack, including the second housing (201) and with it is described
The second housing (201) connection second processor (207), the second LCDs (205) and the 2nd NRF905 wireless receiving and dispatchings
Module (204),
Described infrared temperature sensor (103) collection rack and environment temperature, first processor is sent to by temperature information
(110), first processor (110) adjusts fan (104) rotating speed according to temperature information, and temperature information is passed through into the first NRF905
Radio receiving transmitting module (107) is sent to the 2nd NRF905 radio receiving transmitting modules (204), shown by the first LCDs (108)
Show, temperature information is sent to second processor (207), second processing by the 2nd described NRF905 radio receiving transmitting modules (204)
Device (207) shows temperature information by the second LCDs (205).
2. a kind of fan cooling control system gathered based on NRF905 non-contact temperatures according to claim 1, its
It is characterised by, described system also includes host computer (3), described wireless data, which receives and uploaded device, also to be included respectively with the
Two processors (207) and the RS232 serial ports (203) of host computer (3) connection, described second processor (207) are gone here and there by RS232
Temperature information is sent to host computer (3) by mouth (203), and described host computer (3) calculates the flat of corresponding region according to temperature information
Equal temperature, and early warning is carried out according to result of calculation.
3. a kind of fan cooling control system gathered based on NRF905 non-contact temperatures according to claim 2, its
It is characterised by, described wireless data, which receives and uploaded device, also includes USB power supply interfaces (202), described USB power supply interfaces
(202) it is connected with host computer (3).
4. a kind of fan cooling control system gathered based on NRF905 non-contact temperatures according to claim 1, its
It is characterised by, it is 1/2 rated speed that described fan (104), which starts rotating speed, rotating speed=alarm temperature/(2* alarm temperature during operation
Degree-Current Temperatures) * rated speeds.
5. a kind of fan cooling control system gathered based on NRF905 non-contact temperatures according to claim 1, its
It is characterised by, described temperature information includes the target rack and its area information of institute's collecting temperature, described mean temperature is led to
Cross the average value of the temperature of all temperature acquisition points in the region.
6. a kind of fan cooling control system gathered based on NRF905 non-contact temperatures according to claim 1, its
It is characterised by, described the first housing (105) and the second housing (201) are stainless steel.
7. a kind of fan cooling control system gathered based on NRF905 non-contact temperatures according to claim 1, its
It is characterised by, described the first housing (105) is buckled (101) provided with two fixations.
8. a kind of fan cooling control system gathered based on NRF905 non-contact temperatures according to claim 1, its
It is characterised by, described infrared temperature sensor (103) is connected by fix bar (102) with the first housing (105).
9. a kind of fan cooling control system gathered based on NRF905 non-contact temperatures according to claim 1, its
It is characterised by, described the first housing (105) bottom is provided with 220 volts of alternating-current switch power supplys (106) being connected with fan (104).
10. a kind of fan cooling control system gathered based on NRF905 non-contact temperatures according to claim 9, its
It is characterised by, described the first housing (105) is sideways provided with the ship type switch (109) being connected with described Switching Power Supply (106).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710325098.1A CN107121198B (en) | 2017-05-10 | 2017-05-10 | A kind of fan cooling control system based on the acquisition of NRF905 non-contact temperature |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710325098.1A CN107121198B (en) | 2017-05-10 | 2017-05-10 | A kind of fan cooling control system based on the acquisition of NRF905 non-contact temperature |
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| CN107121198B CN107121198B (en) | 2019-06-11 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110856422A (en) * | 2019-11-25 | 2020-02-28 | 国网新疆电力有限公司乌鲁木齐供电公司 | SDH equipment fan control device and method |
| CN112462817A (en) * | 2020-11-06 | 2021-03-09 | 国网河南省电力公司镇平县供电公司 | Temperature control device for control and protection case |
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| CN107121198B (en) | 2019-06-11 |
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Address after: 200090 No. 2103, Pingliang Road, Shanghai, Yangpu District Patentee after: Shanghai University of Electric Power Address before: 200090 No. 2103, Pingliang Road, Shanghai, Yangpu District Patentee before: SHANGHAI University OF ELECTRIC POWER |
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Application publication date: 20170901 Assignee: Shanghai Fortis Network Technology Co.,Ltd. Assignor: Shanghai University of Electric Power Contract record no.: X2023310000104 Denomination of invention: A fan heat dissipation control system based on NRF905 non-contact temperature acquisition Granted publication date: 20190611 License type: Common License Record date: 20230621 |