CN109798631B - Subway machine room temperature regulation optimization system and method - Google Patents
Subway machine room temperature regulation optimization system and method Download PDFInfo
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- CN109798631B CN109798631B CN201910258511.6A CN201910258511A CN109798631B CN 109798631 B CN109798631 B CN 109798631B CN 201910258511 A CN201910258511 A CN 201910258511A CN 109798631 B CN109798631 B CN 109798631B
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Abstract
The invention relates to a temperature regulation and optimization system and method for a subway machine room, and belongs to the technical field of air conditioner control of railway machine rooms. The temperature regulation and optimization system comprises temperature sensors for detecting the temperature of each machine room, a ventilation pipe opening sensor and a cooling liquid temperature sensor for determining the ventilation pipe opening and the cooling liquid temperature of each machine room air conditioner respectively, a signal processing circuit for shaping, amplifying and filtering temperature signals to obtain stable analog signals, a data processing device for analyzing and processing temperature information, a display for displaying the temperature of each machine room in real time to carry out temperature regulation grading of each machine room, a control device for realizing temperature regulation of each machine room and an alarm device for carrying out fault alarm of each machine room. The invention can grade the cooling of each machine room by monitoring the temperature change of each machine room of the subway in real time, effectively realize the cooling of each machine room through the control device, ensure the normal work of electronic equipment, optimize a machine room cooling system and alarm a fault machine room.
Description
Technical Field
The invention relates to a temperature regulation and optimization system and method for a subway machine room, and belongs to the technical field of air conditioner control of railway machine rooms.
Background
Along with the development of the society, the urban population is rapidly increased, the living standard of people is increasingly improved, the requirements on transportation tools required for traveling are higher and higher, the demand of the transportation tools is also higher and higher, and various transportation tools such as subways, light rails and buses are rapidly developed. At present, in some big cities, subway vehicles become the first choice for people to go out, because subway vehicles have large transportation volume, high speed and no pollution. The temperature is an important factor influencing the working reliability of a subway machine room, and the reliability of equipment is reduced by 25 percent when the temperature of the experimental machine room rises by 5 percent, and is reduced by 40 percent when the temperature rises by 10 percent.
The traditional air-conditioning control system for the metro vehicle mainly adopts a relay control system, and normal operation of equipment of the metro vehicle is realized through hard wire connection of various electric devices such as a contactor, a relay, an air switch, a change-over switch, a temperature controller and the like. The traditional air conditioner control system mainly realizes a control function by giving commands through a change-over switch, and can only realize working modes such as ventilation, refrigeration, heating and the like. For a traditional relay circuit controlled air conditioning system, complex logic function and digital control are difficult to realize, and the logic control function to be realized in a certain scale is complex in design, difficult to realize upgrading, easy to break down, complex in maintenance, high in power consumption and the like, and is gradually eliminated by people at present.
Disclosure of Invention
In order to solve the above problems, an object of the present invention is to provide a system and a method for adjusting and optimizing the temperature of a subway machine room, which are used for monitoring the temperature of each machine room in real time, controlling the temperature of each machine room in a hierarchical manner, and optimizing an air conditioning system.
The purpose of the invention is realized by the following technical scheme:
a temperature regulation and optimization system for a subway machine room comprises a plurality of machine room temperature sensors, a plurality of ventilation pipe opening sensors, a cooling liquid temperature sensor, a signal processing circuit, a data processing device, a display, a control device and an alarm device; the system comprises a plurality of machine room temperature sensors, a plurality of ventilation pipe opening sensors, a cooling liquid temperature sensor, a data processing device, a display, an alarm device and a control device, wherein the plurality of machine room temperature sensors are respectively installed inside each subway machine room, the plurality of ventilation pipe opening sensors are respectively installed at special air conditioner ventilation pipes of each subway machine room, the cooling liquid temperature sensor is installed at an air conditioner condensing unit, the data processing device, the display, the alarm device and the control device are installed at a control center of a subway station, a signal processing circuit is used for connecting each sensor and the data processing device, and the control device is used for controlling the opening of the;
the signal processing circuit comprises a signal conditioning circuit and a filter circuit which are connected in series, the output ends of the machine room temperature sensor, the ventilation pipe opening sensor and the cooling liquid temperature sensor are respectively and electrically connected with the input end of the signal conditioning circuit, the output end of the signal conditioning circuit is electrically connected with the input end of the filter circuit, the output end of the filter circuit is electrically connected with the input end of the data processing device, the output end of the data processing device is electrically connected with the input end of a display, the output end of the display is respectively connected with the input ends of a control device and an alarm device, and the control device is also electrically connected to the input end.
Further, the machine room temperature sensor and the cooling liquid temperature sensor both adopt NTC temperature sensors, and the temperature range is-50-200 ℃;
the data processing device is a microprocessor, a single chip microcomputer or an ARM processor;
the display adopts a 2.2-inch LCD display;
the control device comprises a controller, an A/D converter, an RJ45 interface and an SPI interface, and a TMS320F2812 is adopted as a main chip of the controller;
the alarm device adopts an AD16-22SM type flashing buzzer, and each subway machine room is provided with an independent corresponding alarm.
A temperature regulation and optimization method for a subway machine room comprises the following steps:
step 1, data acquisition:
the machine room temperature sensor collects real-time temperatures of various subway machine rooms, and meanwhile, the ventilation pipe opening sensor and the cooling liquid temperature sensor respectively detect the opening of an air conditioning ventilation pipeline and the cooling liquid temperature of an air conditioning condensing unit in real time and send collected signals to the signal processing circuit;
step 2, data processing:
the signal processing circuit shapes, amplifies and filters the temperature signal collected by the machine room temperature sensor, the ventilation pipe opening signal collected by the ventilation pipe opening sensor and the cooling liquid temperature signal collected by the cooling liquid temperature sensor of the air conditioning condensing unit to obtain a stable analog signal, and then sends the analog signal to the data processing device; the data processing device compares the analog signal data of the signal processing circuit with the set temperature of the subway machine room to judge whether the subway machine room needs to be cooled or not and determine the temperature regulation grade;
step 3, judging and displaying:
the display receives the temperature regulation grade and the real-time temperature of the data processing device and displays the temperature by signal lamps with different colors, and whether the subway machine room needs to be cooled is judged according to the colors of the display lamps corresponding to the subway machine rooms; when the temperature adjusting level is three levels, the display lamp displays a green lamp; when the temperature adjusting level is the second level, the display lamp displays a yellow lamp; when the temperature adjusting level is one level, the display lamp displays a red light;
and 4, controlling the system:
according to the temperature regulation grade displayed by the display, when the temperature needs to be regulated, the control device regulates the temperature by controlling the opening of the air conditioning ventilation pipe special for each subway machine room and the temperature of condensate of the condensing unit.
Further, in the step 3, the temperature regulation level specifically is as follows:
the set temperature of the subway machine room is T0The real-time temperature of each subway machine room is Ti；
When T is0-2℃≤Ti≤T0At +2 ℃, the indicator light of the display is green;
when T is0-12℃≤Ti≤T0-7 ℃ or T0+7℃≤Ti≤T0At +12 deg.C, the indicator light of the display isYellow light, the temperature adjusting level is two levels;
when T isi＜T0-12 ℃ or Ti＞T0At +12 ℃, the indicator light of the display is displayed as a red light, and the temperature adjusting level is first grade;
the subway machine room corresponding to the red light is a first-level machine room, the subway machine room corresponding to the yellow light is a second-level machine room, and the subway machine room corresponding to the green light is a third-level machine room.
Further, the control device preferentially carries out full-cooling or full-warming control on the first-level machine room according to the temperature regulation grade displayed by the display: opening the ventilation pipe to the maximum, and setting the temperature of the condensate to be the highest value or the lowest value; when the number of the first-level machine rooms is 0, semi-cold or semi-warm control is carried out on the second-level machine rooms: adjusting the opening degree of the ventilation pipe to a half-open state, and setting the temperature of the condensate to be a second highest value or a second lowest value; when the number of the second-level machine rooms is 0, carrying out constant temperature control on the third-level machine rooms: the opening degree of the ventilation pipe is a small value, and the cooling liquid is set to be the set temperature of the subway machine room.
Further, after the system control in step 4, the method further comprises a system alarm: the data processing device starts timing at the moment when the control device starts temperature adjustment, and after the temperature adjustment time threshold value, the alarm device gives an alarm according to the temperature change condition of each subway machine room and the grade change condition of the signal lamps displayed by the display when the temperature of the subway machine room can not be obviously degraded.
Further, the alarm device can give an alarm for any one of the following three conditions:
(1) if a certain subway machine room is at the first level and after the temperature adjusting time threshold value, the subway machine room is still at the first level;
(2) if the temperature of the second-level machine room controlled by half-cold or half-warm is not reduced to the third level after the temperature adjusting time threshold, the machine room is controlled by full-cold or full-warm, and the temperature of the second-level machine room is not reduced to the third level after the temperature adjusting time threshold;
(3) if the temperature of the second-level machine room controlled by half-cold or half-warm is not reduced to the third level after the temperature adjusting time threshold, performing full-cold or full-warm control on the machine room, and reducing the temperature of the second-level machine room controlled by half-cold or half-warm to the third level within the temperature adjusting time threshold;
when the conditions (1) and (2) are met, the corresponding subway machine room cannot realize effective temperature adjustment, and the alarm device sounds with a high frequency;
and in case (3), the temperature regulating capability of the corresponding subway machine room is weaker, and the alarm device sounds for a long time at low frequency.
Further, the temperature adjusting time threshold is 3 min.
The invention has the beneficial effects that:
the invention provides a system and a method for adjusting and optimizing the temperature of a subway. And the hierarchical control is carried out according to the priority order of the machine rooms, the temperature of the machine rooms is effectively regulated, the optimization of an air conditioning system of the subway machine room is realized, and meanwhile, the alarm is carried out on the machine room with failure control.
Drawings
FIG. 1 is a schematic structural diagram of a subway machine room temperature regulation and optimization system;
fig. 2 is a schematic flow chart of a subway machine room temperature adjustment and optimization method.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
A temperature regulation and optimization system for a subway machine room is shown in figure 1 and comprises a plurality of machine room temperature sensors, a plurality of ventilation pipe opening sensors, a cooling liquid temperature sensor, a signal processing circuit, a data processing device, a display, a control device and an alarm device; a plurality of computer lab temperature sensor installs respectively inside each subway computer lab, a plurality of ventilation pipe aperture sensor installs respectively in the special air conditioner ventilation pipe department of each subway computer lab, cooling liquid temperature sensor installs in air conditioner condensing unit department, data processing device, display, alarm device and controlling means install in the control center at subway station, signal processing circuit is used for being connected between each sensor and the data processing device, controlling means is used for controlling the condenser temperature of the special air conditioner ventilation pipe aperture of each subway computer lab and condensing unit.
The signal processing circuit comprises a signal conditioning circuit and a filter circuit which are connected in series, the output ends of the machine room temperature sensor, the ventilation pipe opening sensor and the cooling liquid temperature sensor are respectively and electrically connected with the input end of the signal conditioning circuit, the output end of the signal conditioning circuit is electrically connected with the input end of the filter circuit, the output end of the filter circuit is electrically connected with the input end of the data processing device, the output end of the data processing device is electrically connected with the input end of a display, the output end of the display is respectively connected with the input ends of a control device and an alarm device, and the control device is also electrically connected to the input end.
The temperature sensors of the machine room and the cooling liquid are NTC temperature sensors, and the temperature ranges from-50 ℃ to 200 ℃;
the data processing device is a microprocessor, a single chip microcomputer or an ARM processor;
the display adopts a 2.2-inch LCD display;
the control device comprises a controller, an A/D converter, an RJ45 interface and an SPI interface, and a TMS320F2812 is adopted as a main chip of the controller;
the alarm device adopts an AD16-22SM type flashing buzzer, and each subway machine room is provided with an independent corresponding alarm.
Machine room temperature sensor is used for the temperature of each subway machine room of real-time detection, ventilation pipe opening sensor, coolant temperature sensor is used for confirming each subway machine room air conditioner ventilation pipe opening and coolant temperature, signal processing circuit is used for the temperature signal plastic, enlarge, stable analog signal is obtained in the filtering, data processing unit is used for receiving signal processing circuit's analog signal, computational analysis divides each computer room temperature regulation grade, and the timing of adjusting the temperature, the display is used for showing each computer room temperature situation and the grade that adjusts the temperature in real time, controlling means is used for realizing each computer room temperature regulation according to the display grade that adjusts the temperature, alarm device reports to the police to the computer room that probably takes place the obstacle that adjusts the temperature according to the temperature situation that the display shows, in order to carry out timely maintenance. The system can effectively realize cooling of each machine room through monitoring the temperature change condition of each machine room of the subway in real time and the control device, ensure normal work of electronic equipment and realize optimization of a machine room cooling system.
A method for adjusting and optimizing the temperature of a subway machine room, as shown in FIG. 2, comprises the following steps:
step 1, data acquisition:
the machine room temperature sensor collects real-time temperatures of various subway machine rooms, and meanwhile, the ventilation pipe opening sensor and the cooling liquid temperature sensor respectively detect the opening of an air conditioning ventilation pipeline and the cooling liquid temperature of an air conditioning condensing unit in real time and send collected signals to the signal processing circuit;
step 2, data processing:
the signal processing circuit shapes, amplifies and filters the temperature signal collected by the machine room temperature sensor, the ventilation pipe opening signal collected by the ventilation pipe opening sensor and the cooling liquid temperature signal collected by the cooling liquid temperature sensor of the air conditioning condensing unit to obtain a stable analog signal, and then sends the analog signal to the data processing device; the data processing device compares the analog signal data of the signal processing circuit with the set temperature of the subway machine room to judge whether the subway machine room needs to be cooled or not and determine the temperature regulation grade;
step 3, judging and displaying:
the display receives the temperature regulation grade and the real-time temperature of the data processing device and displays the temperature by signal lamps with different colors, and whether the subway machine room needs to be cooled is judged according to the colors of the display lamps corresponding to the subway machine rooms; when the temperature adjusting level is three levels, the display lamp displays a green lamp; when the temperature adjusting level is the second level, the display lamp displays a yellow lamp; and when the temperature adjusting level is one level, the display lamp displays a red light.
Specifically, the set temperature of the subway machine room is T0The standard average temperature of the machine room should be kept at the set temperature T0+/-2 deg.C, the temp in laboratory room rises by 5 deg.C, and the reliability of its equipment is reduced by 25%, if it is aboveThe temperature is increased by 10 ℃, and the reliability is reduced by 40 percent.
The real-time temperature of each subway machine room is Ti；
When T is0-2℃≤Ti≤T0At +2 ℃, the indicator light of the display is green;
when T is0-12℃≤Ti≤T0-7 ℃ or T0+7℃≤Ti≤T0At +12 ℃, the indicator light of the display is a yellow light, and the temperature adjusting level is two levels;
when T isi＜T0-12 ℃ or Ti＞T0At +12 ℃, the indicator light of the display is displayed as a red light, and the temperature adjusting level is first grade;
the subway machine room corresponding to the red light is a first-level machine room, the subway machine room corresponding to the yellow light is a second-level machine room, and the subway machine room corresponding to the green light is a third-level machine room.
And 4, controlling the system:
according to the temperature regulation grade displayed by the display, when the temperature is required to be regulated, the control device regulates the temperature by controlling the opening of the air conditioning ventilation pipe special for each subway machine room and the temperature of the condensate liquid of the condensing unit.
The control device preferentially carries out full-cooling or full-warming control on the first-level machine room according to the temperature regulation grade displayed by the display: opening the ventilation pipe to the maximum, and setting the temperature of the condensate to be the highest value or the lowest value; when the number of the first-level machine rooms is 0, semi-cold or semi-warm control is carried out on the second-level machine rooms: adjusting the opening degree of the ventilation pipe to a half-open state, and setting the temperature of the condensate to be a second highest value or a second lowest value; when the number of the second-level machine rooms is 0, carrying out constant temperature control on the third-level machine rooms: the opening degree of the ventilation pipe is a small value, and the cooling liquid is set to be the set temperature of the subway machine room.
After the system control in step 4, the method also comprises the following steps: the data processing device starts timing at the moment when the control device starts temperature adjustment, and after the temperature adjustment time threshold value, the alarm device gives an alarm according to the temperature change condition of each subway machine room and the grade change condition of the signal lamps displayed by the display when the temperature of the subway machine room can not be obviously degraded.
Specifically, the alarm device can give an alarm for any one of the following three conditions:
(1) if a certain subway machine room is at the first level and after the temperature adjusting time threshold value, the subway machine room is still at the first level;
(2) if the temperature of the second-level machine room controlled by half-cold or half-warm is not reduced to the third level after the temperature adjusting time threshold, the machine room is controlled by full-cold or full-warm, and the temperature of the second-level machine room is not reduced to the third level after the temperature adjusting time threshold;
(3) if the temperature of the second-level machine room controlled by half-cold or half-warm is not reduced to the third level after the temperature adjusting time threshold, performing full-cold or full-warm control on the machine room, and reducing the temperature of the second-level machine room controlled by half-cold or half-warm to the third level within the temperature adjusting time threshold;
when the conditions (1) and (2) are met, the corresponding subway machine room cannot realize effective temperature adjustment, and needs to be maintained in time, and the alarm device sounds with a high frequency;
and in case (3), the temperature regulating capability of the corresponding subway machine room is weaker, and the alarm device sounds for a long time at low frequency.
The temperature adjusting time threshold can be set to be 3min, and the time threshold can be set to take different values according to the specific conditions of each subway station.
In summary, the system can monitor the temperature change condition of each machine room of the subway in real time, carry out grading matching on the temperature regulation priority of each machine room and the temperature regulation of the air conditioners, effectively realize the temperature reduction of each machine room through the control device, ensure the normal work of electronic equipment, realize the optimization of a machine room temperature reduction system, and alarm the machine room with possible temperature regulation obstacles so as to maintain the air conditioners of the machine rooms in time.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A temperature regulation optimization method based on a subway machine room temperature regulation optimization system is characterized in that the subway machine room temperature regulation optimization system comprises a plurality of machine room temperature sensors, a plurality of ventilation pipe opening sensors, a cooling liquid temperature sensor, a signal processing circuit, a data processing device, a display, a control device and an alarm device; the system comprises a plurality of machine room temperature sensors, a plurality of ventilation pipe opening sensors, a cooling liquid temperature sensor, a data processing device, a display, an alarm device and a control device, wherein the plurality of machine room temperature sensors are respectively installed inside each subway machine room, the plurality of ventilation pipe opening sensors are respectively installed at special air conditioner ventilation pipes of each subway machine room, the cooling liquid temperature sensor is installed at an air conditioner condensing unit, the data processing device, the display, the alarm device and the control device are installed at a control center of a subway station, a signal processing circuit is used for connecting each sensor and the data processing device, and the control device is used for controlling the opening of the;
the output end of the filter circuit is electrically connected with the input end of the data processing device, the output end of the data processing device is electrically connected with the input end of a display, the output end of the display is respectively connected with the input ends of the control device and the alarm device, and the control device is also electrically connected with the input end of the data processing device;
the temperature regulation optimization method comprises the following steps:
step 1, data acquisition:
the machine room temperature sensor collects real-time temperatures of various subway machine rooms, and meanwhile, the ventilation pipe opening sensor and the cooling liquid temperature sensor respectively detect the opening of an air conditioning ventilation pipeline and the cooling liquid temperature of an air conditioning condensing unit in real time and send collected signals to the signal processing circuit;
step 2, data processing:
the signal processing circuit shapes, amplifies and filters the temperature signal collected by the machine room temperature sensor, the ventilation pipe opening signal collected by the ventilation pipe opening sensor and the cooling liquid temperature signal collected by the cooling liquid temperature sensor of the air conditioning condensing unit to obtain a stable analog signal, and then sends the analog signal to the data processing device; the data processing device compares the analog signal data of the signal processing circuit with the set temperature of the subway machine room to judge whether the subway machine room needs to be cooled or not and determine the temperature regulation grade;
step 3, judging and displaying:
the display receives the temperature regulation grade and the real-time temperature of the data processing device and displays the temperature regulation grade and the real-time temperature by signal lamps with different colors, and whether the subway machine room needs to be cooled is judged according to the colors of the display lamps corresponding to the subway machine rooms; when the temperature regulation level is three levels, the display lamp displays a green lamp; when the temperature regulation level is in the second level, the display lamp displays a yellow lamp; when the temperature regulation level is one level, the display lamp displays a red light; the subway machine room corresponding to the red light is a first-level machine room, the subway machine room corresponding to the yellow light is a second-level machine room, and the subway machine room corresponding to the green light is a third-level machine room;
and 4, controlling the system:
according to the temperature regulation grade displayed by the display, when the temperature needs to be regulated, the control device regulates the temperature by controlling the opening of the air conditioning ventilation pipe special for each subway machine room and the temperature of the condensate liquid of the condensing unit;
wherein, controlling means carries out full cold or warm control to one-level computer lab according to the temperature regulation grade that the display shows preferentially: opening the ventilation pipe to the maximum, and setting the temperature of the condensate to be the highest value or the lowest value; when the number of the first-level machine rooms is 0, semi-cold or semi-warm control is carried out on the second-level machine rooms: adjusting the opening degree of the ventilation pipe to a half-open state, and setting the temperature of the condensate to be a second highest value or a second lowest value; when the number of the second-level machine rooms is 0, carrying out constant temperature control on the third-level machine rooms: the opening degree of the ventilation pipe is a small value, and the cooling liquid is set to be the set temperature of the subway machine room.
2. The temperature regulation and optimization method based on the subway machine room temperature regulation and optimization system according to claim 1,
the machine room temperature sensor and the cooling liquid temperature sensor both adopt NTC temperature sensors, and the temperature range is-50-200 ℃;
the data processing device is a microprocessor, a single chip microcomputer or an ARM processor;
the display adopts a 2.2-inch LCD display;
the control device comprises a controller, an A/D converter, an RJ45 interface and an SPI interface, and a TMS320F2812 is adopted as a main chip of the controller;
the alarm device adopts an AD16-22SM type flashing buzzer, and each subway machine room is provided with an independent corresponding alarm.
3. The temperature regulation and optimization method based on the subway machine room temperature regulation and optimization system according to claim 1, wherein the temperature regulation grade in step 3 is as follows:
the set temperature of the subway machine room is T0The real-time temperature of each subway machine room is Ti；
When T is0-2℃≤Ti≤T0At +2 ℃, the indicator light of the display is green;
when T is0-12℃≤Ti≤T0-7 ℃ or T0+7℃≤Ti≤T0At +12 ℃, the indicator light of the display is a yellow light;
when T isi＜T0-12 ℃ or Ti＞T0At +12 deg.C, the indicator light of the display is red.
4. The temperature regulation and optimization method based on the subway machine room temperature regulation and optimization system according to claim 1, characterized in that after the system control in step 4, the method further comprises the following steps: the data processing device starts timing at the moment when the control device starts temperature adjustment, and after the temperature adjustment time threshold value, the alarm device gives an alarm according to the temperature change condition of each subway machine room and the grade change condition of the signal lamps displayed by the display when the temperature of the subway machine room can not be obviously degraded.
5. The temperature regulation and optimization method based on the subway machine room temperature regulation and optimization system according to claim 4, wherein the alarm device gives an alarm for any one of the following three conditions:
(1) if a certain subway machine room is at the first level and after the temperature adjusting time threshold value, the subway machine room is still at the first level;
(2) if the temperature of the second-level machine room controlled by half-cold or half-warm is not reduced to the third level after the temperature adjusting time threshold, the machine room is controlled by full-cold or full-warm, and the temperature of the second-level machine room is not reduced to the third level after the temperature adjusting time threshold;
(3) if the temperature of the second-level machine room controlled by half-cold or half-warm is not reduced to the third level after the temperature adjusting time threshold, performing full-cold or full-warm control on the machine room, and reducing the temperature of the second-level machine room controlled by half-cold or half-warm to the third level within the temperature adjusting time threshold;
when the conditions (1) and (2) are met, the corresponding subway machine room cannot realize effective temperature adjustment, and the alarm device sounds with a high frequency;
and in case (3), the temperature regulating capability of the corresponding subway machine room is weaker, and the alarm device sounds for a long time at low frequency.
6. The temperature regulation and optimization method based on the subway machine room temperature regulation and optimization system according to claim 4, wherein the temperature regulation time threshold is 3 min.
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| CN207335073U (en) * | 2017-10-18 | 2018-05-08 | 山西职业技术学院 | A kind of communication base station room environment monitoring device |
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| WO2015171796A1 (en) * | 2014-05-07 | 2015-11-12 | Emerson Climate Technologies, Inc. | Heat pump and air conditioning grading systems and methods |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204693741U (en) * | 2015-06-16 | 2015-10-07 | 重庆工业职业技术学院 | Communications equipment room intelligent monitoring of air conditioning system |
| CN107166633A (en) * | 2017-04-25 | 2017-09-15 | 爱恒能源科技（上海）有限公司 | Computer room operation energy consumption real-time monitoring and regulating method |
| CN207335073U (en) * | 2017-10-18 | 2018-05-08 | 山西职业技术学院 | A kind of communication base station room environment monitoring device |
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