CN102519086A - Zigbee-based central heating regulation and control system of public building - Google Patents
Zigbee-based central heating regulation and control system of public building Download PDFInfo
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- CN102519086A CN102519086A CN2012100130896A CN201210013089A CN102519086A CN 102519086 A CN102519086 A CN 102519086A CN 2012100130896 A CN2012100130896 A CN 2012100130896A CN 201210013089 A CN201210013089 A CN 201210013089A CN 102519086 A CN102519086 A CN 102519086A
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Abstract
The invention belongs to the technical field of heating regulation and control of buildings and particularly relates to a Zigbee-based central heating regulation and control system of a public building. The technical scheme disclosed by the invention is of the Zigbee-based central heating regulation and control system of the public building. The Zigbee-based central heating regulation and control system of the public building comprises a building calorimeter and a building heating valve, as well as a temperature collector, a building coordinator, a remote monitoring computer and a terminal mobile phone. The Zigbee-based central heating regulation and control system disclosed by the invention can improve the degree of satisfaction of users with different thermal requirements, the single-point temperature collection is accurate, the precision is high, heat users are guided to reasonably use heat from the heat user ends, and the energy utilization rate of the building is further improved. Simultaneously, a flexible temperature regulation way is provided, and the regulation and control demands of the different users can be better met; and the remote real-time monitoring based on Internet is realized, real-time inquiry, regulation and control through mobile phone short messages can be realized, and the use of each user can be facilitated.
Description
Technical field
The invention belongs to building heating observation and control technology field, be specifically related to a kind of public building central heating regulator control system based on Zigbee.
Background technology
The energy and environmental problem are the two principal themes of puzzlement world today development always, also are the strategic emphasis of China's economic work always.Now, because a large amount of wastes of building energy have caused serious environmental problem.Account for 65% of building energy consumption in northern China winter heating energy consumption, public building especially, heat supply managing is more extensive, causes the serious wasting of resources.Present stage, the deficiency of the low level management of heating system and infrastructure configuration causes the unreasonable with heat of hot user, is currently to reflect apparent in view and outstanding energy consumption issues from hot user side.Accurately rationally measure the hot consumption of hot user, between satisfying under the prerequisite of users'comfort in due course, carrying out the appropriateness regulation and control is important means that the hot user of guiding rationally uses heat.At present; Heating heat measuring method there is traditional area metering method,, therefore is difficult to guide hot user rationally to use heat because it does not consider hot user's the actual hot comfort of using; And then invented respectively in recent years and adopted branch family calorimeter measurement Law, adopt temperature method measurement Law [CN201853280U and CN201954670U] and adopt many associating temperature area-method measurement Laws [number of patent application 201010588876.4] etc.; Having guided hot user rationally to use heat to a certain extent, is that the heating heat of residential construction detects but they are directed against, is difficult to be applicable to public building; Control measures are not enough, and installation difficulty is big.The regulation and control of appropriateness depend on accurately and measure; Temperature is the leading indicator of reflect heat user's heat comfort level; Proposed many methods forefathers aspect the building interior temperature survey in recent years: people such as Lei Chun have designed the multi-point temp acquisition system based on the radio sensing network technology in " based on design of multi-point temp acquisition system and the realization of ZigBee "; And make up collection and the transmission that wireless network is realized data between the main and subordinate node based on the ZigBee protocol stack; People such as Chen Lei have introduced a kind of public place temperature acquisition framework based on the Zigbee network in " based on the public place wireless temperature acquisition system of ZigBee technology " literary composition; But only provided the software and hardware realization of gathering framework based on the multi-point temp of Zigbee in these documents; The disturbing factors such as processing environment, noise to how improve temperature acquisition degree of accuracy aspect and lack effective measures; People such as Zhang Juan have proposed a kind of based on the chamber environment temperature acquisition method of multi-sensor data detection with the data fusion technology in " the greenhouse temperature collection of merging based on multi-sensor data "; Remove the blunder error of individual sensor through introducing the distribution map method; Adopt simultaneously based on the recursion of average and estimate that the method that merges realizes effective processing of multi-sensor data is improved the thermometric degree of accuracy; Yet; The temperature collection in greenhouse and the measurement of public building indoor temperature are very different; Its thermometric purposes and various environmental interference factor are also different, compare with greenhouse, and what public building was more paid attention to is the accuracy of the spot measurement temperature of each point for measuring temperature.Therefore, with regard to present work, the public building internal temperature is accurately gathered, and then implemented the appropriate regulation and control of heating aspect and also lack effective measures, be difficult to satisfy the user's request of different heat demands.
Summary of the invention
To the deficiency that exists in the prior art; The purpose of this invention is to provide a kind of public building central heating regulator control system based on Zigbee; Improve the user satisfaction of different heat demands, guide the reasonable of hot user, improve the building energy utilization rate with heat from hot user side.
For realizing the foregoing invention purpose; The present invention provides a kind of like this technical scheme: a kind of public building central heating regulator control system based on Zigbee; Comprise a building calorimeter, the Lou Dong valve that heats, also comprise Temperature sampler, a building telegon and remote monitoring computer; Said Temperature sampler is used for regularly gathering the temperature of mounting points; A said building telegon is responsible for collecting a building calorimeter data; Utilize the Zigbee network to collect the Temperature sampler data; A control building heating valve opening is uploaded the remote monitoring computer with image data through the GPRS wireless network, and the control command of real-time receiving remote supervisory control comuter; The heating data of monitored public building is collected, stores, monitored to said remote monitoring computer through the GPRS wireless network, and send a control command to a building telegon and carry out temperature adjusting.
Also comprise terminal phone, be used to utilize the note order to obtain the heating data of monitored building, control the temperature of monitored building.
A said building telegon utilizes 458 buses or M-Bus bus to collect a building calorimeter data.
After said Temperature sampler is regularly gathered the temperature of mounting points, utilize the distribution map method to reject to carry out arithmetic average behind the singular data and obtain measured data, adopt Kalman filter to proofread and correct in real time then and obtain image data.
The regular collection of above-mentioned set point temperature, detailed step is following:
1.1 the acquisition interval Δ T1 according to default utilizes digital temperature sensor or thermistor to carry out the real time temperature collection, continuous acquisition TN secondary data, and the image data collection sorted from small to large do<temp1, Temp2 ..., Temp
TN>
1.2 by formula (1-1) obtains interval [Temp
1, Temp
TN] in median Temp
M
1.3 by formula (1-1) this obtains interval [Temp again
1, Temp
M] and interval [Temp
M, Temp
TN] in median F
LAnd F
ULike this, the dispersion of this data set may be defined as dF=F
U-F
L
1.4 on this basis, the data of divorcing of the data on this data set are rejected, the data that promptly satisfy formula (1-2) are rejected from data centralization for the divorce data.Filtered data is carried out arithmetic average obtain this measured data Temp (k).
1.5 then, this measured data Temp (k) is carried out treatment for correcting according to formula (1-3) calculates current acquisition correction temperature.
Wherein Temp (k|k) is the Tc of this collection, and coefficient Q, R, P (0|0) set when system initialization as system configuration parameter, and Temp (0|0) is set at the temperature value of gathering first.
A said building telegon adopts the classification regulative mode to a building heating valve.
Adjusting to the heating valve can be adopted 5 grades of regulative modes, carries out grading control according to the Current Temperatures and the temperature difference of setting the control temperature, to improve the stability of system.
A said building telegon adopts the period policy control based on classification to the temperature adjusting of monitored building.
Said period strategy is divided into four types of ordinary days, Saturday, Sunday, festivals or holidays; Every type of period strategy can be divided into six control periods.
A said building telegon can be automatic control or manually control to the temperature adjusting of monitored building; Control mode can be equal temperature control, weighted point control and single-point control.
Under automatic control category, a building telegon will carry out temperature adjusting by control strategy regulation and control heating valve; Under manual control category, a building telegon will carry out temperature adjusting according to the temperature adjusting heating valve that the user sets.
Under the samming control mode, when carrying out temperature adjusting, control according to the arithmetic mean of instantaneous value of a current building effective temperature data that telegon collected; Under weighted point control mode, the user can specify temperature that a Temperature sampler gathers as the weighted point data, and then by formula (1-4) calculates the weighting temperature as the control foundation; The user can specify temperature that a Temperature sampler gathers as the control foundation under the single-point control mode.
The collection of a said building telegon temperature and thermal data with upload, detailed step is following:
2.1 a building telegon according to the acquisition interval Δ T2 of default, periodically utilizes the Zigbee network to the instruction of the whole network Temperature sampler broadcasting temperature acquisition in the initial moment in each cycle.
2.2 Temperature sampler receives that temperature acquisition instruction back gets into the time-delay state, delay time is n* Δ T3, and n is the numbering of this Temperature sampler.Time-delay finishes the Current Temperatures of oneself is passed to a building telegon with mode of unicast through the Zigbee network.
2.3 a building telegon does not also receive that above the Δ T2*1/3 time Temperature sampler of its temperature data sends acquisition instructions to obtain its temperature data with mode of unicast again to those.
2.4 each collected Temperature sampler temperature data is obtained the dispersion dF of this data set by (1.1) to (1.3) described method; And then the Temperature sampler that will satisfy formula (1-5) condition is designated abnormal data, will receive not that simultaneously the Temperature sampler of its temperature data is expressed as the ineffective temperature collector.All the other are normal data.
Temp wherein
iBe i the temperature that Temperature sampler is current, Temp
MMedian for this temperature data collection.
Beneficial effect of the present invention mainly shows: 1, the single-point temperature acquisition is accurate; Precision is high; Owing to the present invention is directed to single-point variation of temperature characteristic, introduced the distribution map method and rejected singular data, and utilized Kalman filter to carry out temperature correction; Improve the antijamming capability of temperature acquisition process, the degree of accuracy that has improved temperature; 2, a building telegon can be collected each Temperature sampler temperature data fast under the lower situation of energy consumption; Because the present invention has introduced the temperature collection mode that broadcasting and clean culture combine; And Temperature sampler has adopted the passback temperature mode of time-delay transmission successively, has reduced a building telegon and has sent the number of times of temperature acquisition order, the collision probability when having reduced the passback temperature; Improve the speed that temperature is collected, reduced the energy consumption of a building telegon; 3, the invention provides temperature regulation mechanism flexibly, satisfied the regulation and control demand of different user preferably; 4, realized remote real-time monitoring based on the internet, and real-time inquiry and regulation and control through SMS, convenient for users.
Description of drawings
Fig. 1 is the overall architecture based on the public building central heating regulator control system of Zigbee;
Fig. 2 is a public building central heating thermometric examples of architectures that only comprises four points for measuring temperature, a calorimeter and a heating valve based on the public building central heating regulator control system of Zigbee;
Fig. 3 is the flow chart based on the public building central heating regulator control system of Zigbee.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is further described.
Be illustrated in figure 1 as overall architecture based on the public building central heating regulator control system of Zigbee; Comprise a building calorimeter, the Lou Dong valve that heats, also comprise Temperature sampler, a building telegon and remote monitoring computer; Said Temperature sampler is used for regularly gathering the temperature of mounting points; A said building telegon is responsible for collecting a building calorimeter data; Utilize the Zigbee network to collect the Temperature sampler data; A control building heating valve opening is uploaded the remote monitoring computer with image data through the GPRS wireless network, and the control command of real-time receiving remote supervisory control comuter; The heating data of monitored public building is collected, stores, monitored to said remote monitoring computer through the GPRS wireless network, and send a control command to a building telegon and carry out temperature adjusting.This system also comprises terminal phone, is used to utilize the note order to obtain the heating data of monitored building, controls the temperature of monitored building.
Fig. 2 is a public building central heating thermometric examples of architectures that only comprises four points for measuring temperature, a calorimeter and a heating valve based on the public building central heating regulator control system of Zigbee;
Fig. 3 is the flow chart based on the public building central heating regulator control system of Zigbee, sets up in the public building central heating observing and controlling framework in step (1), might as well suppose in certain public building, to arrange four Temperature samplers (corresponding four points for measuring temperature;), a heating valve, a calorimeter; A building telegon and a Centralized Monitoring computer are formed, wherein in the Zigbee network; Four Temperature samplers are numbered as 1 ~ 4 respectively; Telegon is numbered 0, and for this reason, whole public building heating observing and controlling framework is as shown in Figure 2.
In step (2) relevant parameter is set, accomplish the setting of Temperature sampler parameter, a building telegon parameter, system control strategy and the classification of heating valve being regulated parameter.Wherein, acquisition interval Δ T1 that at first can each Temperature sampler, continuous acquisition number of times TN, filtration coefficient β, correction coefficient Q, R and P (0|0), and transmission delay interval delta T 3 is set; To a building telegon data collection intervals Δ T2, the filter alpha is provided with then, and general Δ T2 is greater than Δ T1, and is preferably the integral multiple of Δ T1, generally can be set to 10 minutes; Then also in a building telegon, control strategy be set; Promptly be included as ordinary day, Saturday, Sunday, festivals or holidays four types of period control strategies; Every type of control strategy can be provided with six periods at most; Table 1 has been described an ordinary day period control strategy instance (the unwanted period can not be provided with), and other classification control strategies similarly.The classification of heating valve is set at last regulates parameter, it mainly comprises the temperature difference and aperture, generally can be divided into 5 grades, and is as shown in table 2.
Table 1 ordinary day control strategy
| Time period | Time started | The control | Control mode | |
| 1 | 7:30 | 20 | The |
|
| 2 | 11:30 | 18 | On |
|
| 3 | 14:00 | 20 | The |
|
| 4 | 17:30 | 20 | Single- |
|
| 5 | 21:30 | Close | - | |
| 6 | - | - | - |
Parameter is regulated in the classification of table 2 heating valve
| Rank | The temperature difference | Aperture |
| Do not control | (-1,-) | Complete shut-down |
| Less | (-2,-1] | 1/4 |
| Little | (-3,-2] | 1/2 |
| In | (-5,-3] | 3/4 |
| Greatly | (-,-5] | Standard-sized sheet |
After relative parameters setting is accomplished, system will begin normal observing and controlling, and default control category is control automatically, and promptly system controls according to the control strategy of having set, wherein:
Concerning each Temperature sampler; Then periodically accomplish the collection and the correction of temperature by acquisition interval Δ T1, promptly in step (3), each Temperature sampler is pressed both setting parameter completion temperature acquisitions; After accomplishing one batch temperature data acquisition; The abnormal temperature data are rejected by (1.1) ~ (1.4) step, in step (4), then accomplished image data proofreaied and correct by (1.5) and obtain Tc;
For a building telegon, be then periodically to accomplish the collection of the temperature of each Temperature sampler, the collection of calorimeter thermal data on the one hand by data collection intervals Δ T2, accomplish uploading of temperature and thermal data simultaneously; Be the heating valve to be regulated and control on the other hand according to control strategy and current control category.Be in the step (5); A building telegon began in each cycle; 4 Temperature sampler broadcasting temperature in this instance are collected instruction, and each Temperature sampler receives that temperature collection instruction back gets into the time-delay state, and delay time is n* Δ T3; N is the numbering of this Temperature sampler, and time-delay finishes then that the last time is measured Tc data single broadcasting and sends to a building telegon.If time delay has been crossed 1/3rd of Δ T2; Then get into step (6); Promptly those are not received the Temperature sampler clean culture temperature acquisition instruction respectively of its temperature data, each Temperature sampler is received after the temperature of clean culture is collected instruction will send to a building telegon with its last measured Tc data single broadcasting at once.Adopt this broadcasting to add the temperature collection mode of clean culture, can significantly reduce a building telegon and send the number of times of temperature acquisition instruction.In step (7), a building telegon sends thermal data collection instruction to the calorimeter of its connection, and accepts the thermal data that calorimeter returns.In step (8), a building telegon is uploaded to the Centralized Monitoring computer with the temperature data of each Temperature sampler of collecting in this cycle and the thermal data of calorimeter through GPRS.At last, in step (9), system controls according to current control category; If current is manual control; Control mode is equal temperature control, and then system according to the control temperature of current samming and setting relatively regulates by the heat aperture of valve of table 2 according to fiducial value; If control automatically, system then carries out control according to the period control strategy of having set.
Telegon is when carrying out collection, control according to the step among Fig. 3 (5) ~ (9); In step (10); Telegon will constantly be intercepted the information of GPRS and SMS, if receive control commands corresponding, will in step (11), respond this control command; For example obtain behind the querying command current temperature, state of a control to be fed back to inquiry end (can be Centralized Monitoring computer or mobile phone terminal); If the temperature control command, respective response will be made according to current control mode by system: if current be manual control category, then upgrade current control temperature; If current is automatic control, promptly get into manual control category, switch back control automatically again up to the next one control period.System mode after will changing simultaneously feeds back to the inquiry end.
Can find out that from above-mentioned specific embodiment the present invention has at first introduced the distribution map method and rejected singular data, and utilizes Kalman filter to carry out temperature correction, improve the antijamming capability of temperature acquisition process, the degree of accuracy that has improved temperature; On this basis, collect the mode that has adopted first broadcasting back clean culture, reduced the temperature collection instruction of a building telegon and sent number of times, improved gathering speed, reduced the energy consumption of a building telegon for the temperature of a building telegon; For the regulation and control of temperature, introduced samming, weighting emphasis and single-point control mode, and improved the flexibility ratio of temperature control through the time control strategy, satisfied the regulation and control demand of different user preferably, improved energy-saving efficiency; Also introduced remote real-time monitoring among last the present invention based on the internet, and real-time inquiry and the regulation and control of passing through SMS, convenient for users.
Claims (8)
1. public building central heating regulator control system based on Zigbee comprises a building calorimeter, the Lou Dong valve that heats, and it is characterized in that: also comprise Temperature sampler, a building telegon and remote monitoring computer;
Said Temperature sampler is used for regularly gathering the temperature of mounting points;
A said building telegon is responsible for collecting a building calorimeter data; Utilize the Zigbee network to collect the Temperature sampler data; A control building heating valve opening is uploaded the remote monitoring computer with image data through the GPRS wireless network, and the control command of real-time receiving remote supervisory control comuter;
The heating data of monitored public building is collected, stores, monitored to said remote monitoring computer through the GPRS wireless network, and send a control command to a building telegon and carry out temperature adjusting.
2. the public building central heating regulator control system based on Zigbee as claimed in claim 1 is characterized in that, also comprises terminal phone, is used to utilize the note order to obtain the heating data of monitored building, controls the temperature of monitored building.
3. the public building central heating regulator control system based on Zigbee as claimed in claim 1 is characterized in that, a said building telegon utilizes 458 buses or M-Bus bus to collect a building calorimeter data.
4. the public building central heating regulator control system based on Zigbee as claimed in claim 1; It is characterized in that; After said Temperature sampler is regularly gathered the temperature of mounting points; Utilize the distribution map method to reject to carry out arithmetic average behind the singular data and obtain measured data, adopt Kalman filter to proofread and correct in real time then and obtain image data.
5. the public building central heating regulator control system based on Zigbee as claimed in claim 1 is characterized in that, a said building telegon adopts the classification regulative mode to a building heating valve.
6. the public building central heating regulator control system based on Zigbee as claimed in claim 1 is characterized in that, a said building telegon adopts the period policy control based on classification to the temperature adjusting of monitored building.
7. the public building central heating regulator control system based on Zigbee as claimed in claim 6 is characterized in that, said period strategy is divided into four types of ordinary days, Saturday, Sunday, festivals or holidays; Every type of period strategy can be divided into six control periods.
8. the public building central heating regulator control system based on Zigbee as claimed in claim 1 is characterized in that, a said building telegon can be automatic control or manually control to the temperature adjusting of monitored building; Control mode can be equal temperature control, weighted point control and single-point control.
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| CN103017252A (en) * | 2012-11-19 | 2013-04-03 | 江苏大学 | Indoor electric heating film ground heating control device and indoor electric heating film ground heating control method |
| CN103629736A (en) * | 2013-11-16 | 2014-03-12 | 张龙海 | Intelligent remote wireless temperature control and metering system |
| CN104776488A (en) * | 2014-01-10 | 2015-07-15 | 北京新城国泰能源科技有限公司 | Heating control system and heating control method |
| CN104990132A (en) * | 2015-07-20 | 2015-10-21 | 吉林省安亿家热能计量有限责任公司 | Heating metering remote intelligent control system based on upper apportionment |
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| CN106765530A (en) * | 2016-12-28 | 2017-05-31 | 湖南信熙智控科技有限公司 | One kind is based on Internet of Things energy-conserving and environment-protective heating control system |
| CN108895532A (en) * | 2018-04-20 | 2018-11-27 | 太原理工大学 | District heating energy-saving control method based on stochastic distribution control algorithm |
| CN114060903A (en) * | 2021-12-06 | 2022-02-18 | 河北工业大学 | Method for identifying energy-saving characteristics of thermal user behaviors of tail-end-adjustable heating system |
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| CN105716145B (en) * | 2016-03-16 | 2019-05-07 | 上海上塔软件开发有限公司 | A kind of electric heating group cooperative control method |
| CN106765530A (en) * | 2016-12-28 | 2017-05-31 | 湖南信熙智控科技有限公司 | One kind is based on Internet of Things energy-conserving and environment-protective heating control system |
| CN108895532A (en) * | 2018-04-20 | 2018-11-27 | 太原理工大学 | District heating energy-saving control method based on stochastic distribution control algorithm |
| CN108895532B (en) * | 2018-04-20 | 2020-06-30 | 太原理工大学 | Area heating energy-saving control method based on random distribution control algorithm |
| CN114060903A (en) * | 2021-12-06 | 2022-02-18 | 河北工业大学 | Method for identifying energy-saving characteristics of thermal user behaviors of tail-end-adjustable heating system |
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Application publication date: 20120627 |