CN2591571Y - Networked central heating system constant temperature charge meter - Google Patents
Networked central heating system constant temperature charge meter Download PDFInfo
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- CN2591571Y CN2591571Y CN02277068U CN02277068U CN2591571Y CN 2591571 Y CN2591571 Y CN 2591571Y CN 02277068 U CN02277068 U CN 02277068U CN 02277068 U CN02277068 U CN 02277068U CN 2591571 Y CN2591571 Y CN 2591571Y
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02B90/20—Smart grids as enabling technology in buildings sector
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- Air Conditioning Control Device (AREA)
Abstract
The utility model discloses a constant temperature charging meter having a networking function for central air conditioners. The utility model is composed of an actuator and a controller, wherein, the actuator is connected with the controller through conducting wires. A single chip computer is positioned in the controller, continuously carries out the acquisition of environment temperature through a temperature measurement module, and compares acquisition results and the preset temperature through a data storage circuit and an intelligent diagnosis module; corresponding data is selected, and the single chip computer sends out a control instruction, and commands that the high grade, the medium grade and the low grade motors of a blower coil respectively operate through a function control module, a comparison circuit and a driving locking circuit, wherein, the function control module, the comparison circuit and the driving locking circuit are positioned in the actuator. Simultaneously, the single chip computer records respective operating time, each user's consumed energy can be computed out according to a fixed computation formula, and thereby, respective expense is computed out, and then, the remote meter reading charging can be realized through a networked interface circuit in the controller. The utility model is suitable for guest houses, hotels and high-grade office buildings, which are provided with central air conditioners.
Description
Affiliated technical field
The utility model relates to the central air conditioner constant temperature taximeter of central air conditioner message accounting, particularly a kind of networking.
Background technology
On the charge method of skyscraper central air conditioner, generally adopt a kind of homemade central air conditioner constant temperature charge system at present, this system has continued to use external product increases sensor on pipeline method, by detecting the import and export coolant-temperature gage, and calculate what of room heat exchange amount, thereby reach the purpose of metering according to the temperature difference into and out of saliva.The method is wanted sensor installation, and will insert in the former central air conditioner pipeline but also will seal, therefore, constructional difficulties during installation, the cost height, expense is big, and original system is caused certain destruction and influence, and safeguards difficultly, and sensor is in case need to change pretty troublesome.
Summary of the invention
Need sensor installation in order to overcome existing taximeter, constructional difficulties, the cost height, expense is big, safeguards difficult shortcoming, and the utility model provides a kind of novel taximeter.This taximeter is under new theoretical direction, adopt a kind of new method, on the basis of not destroying original central air conditioner, create a kind of both economical and practical, simple and easy to do again brand-new central air conditioner constant temperature taximeter, this taximeter not only has the function that central air conditioner constant temperature charges, and has network savvy again simultaneously, can realize network meter reading and management.
The technical scheme that its technical matters that solves the utility model adopts is: the utility model is made of actuator and controller two large divisions, and two parts connect by lead.Be arranged in the singlechip chip of controller, constantly environment temperature is gathered by temperature measurement module, and by data-storing circuit and intelligent diagnostics module, collection result is compared with design temperature, choose corresponding data, send steering order by single-chip microcomputer, by functional control module, comparator circuit and the driving lock-in circuit that is arranged in actuator, the high, medium and low third gear motor of commander's fan coil carries out work respectively.Simultaneously, by the single-chip microcomputer record working time separately, according to following formula:
In the formula among ∑ T height, the ∑ T, ∑ T is low represents high, medium and low shelves operation total cumulative time (second) respectively.
Δ T-temperature gap (℃) in the K height, K, the power back-off coefficient under the low corresponding high, medium and low respectively shelves of K.
R coil pipe---the coefficient of colligation of blower fan model
Computing machine goes out the energy that each user consumes, thereby calculates expense separately, then by the networking interface circuit in the controller, realizes that remote meter reading charges.
Basic principle of the present utility model is according to thermodynamic (al) viewpoint, the material heat interchange is merely able to be undertaken by convection current, conduction, three kinds of forms of radiation, and for the fan coil of same model, conduction is a fixed value basically, and the temperature difference is when little, and radiation is negligible.Therefore, the principal element that influences heat exchange effect is convection current one by one.Because the specific heat of fluid is certain, the inlet temperature in each room is more or less the same, and only the outlet temperature difference is that convection current causes so the different result of outlet temperature is heat interchange.And the effect of convection current and heat exchange area, surface flow speed are relevant, for same fan unit, its exchange area is certain, so the heat exchange amount in room is main relevant with the wind speed of blower fan, therefore, just can control the temperature in room by controlling the blower fan wind speed, the energy that is consumed by calculating blower fan wind speed just can accurately calculate the required expense of room temperature control.
The beneficial effects of the utility model are: the utility model technology does not make any changes to air-conditioning duct, only the wind speed and the fan operation time of fan unit is measured, and just can calculate heat exchange amount, thereby realizes that air-conditioning constant temperature charges.Like this, novel central air conditioner constant temperature taximeter has compact conformation, easy construction, and system cost is lower, simple and reliable advantage.Then simpler for the former unit that has had our company's central air conditioner thermostat, because the utility model product is developed on our company existing product basis, adopted and the identical external cabling of original product, as long as the original product software systems are carried out suitable expansion, easily upgrading, and do not need original air-conditioning hardware system is done any change.The utility model product also has characteristics such as network meter reading, capacity are big, confidentiality height, and has extendable functions, can be provided with arbitrarily according to user's specific requirement, to be applicable to various special requirements.
Description of drawings:
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is a central air conditioner constant temperature taximeter external structure synoptic diagram of the present utility model.
Fig. 2 is a central air conditioner constant temperature taximeter inner structure block diagram of the present utility model.
Fig. 3 is the circuit diagram of the utility model controller.
Fig. 4 is the circuit diagram of the utility model actuator.
Embodiment:
Fig. 1 has provided external structure synoptic diagram of the present utility model.The central air conditioner constant temperature taximeter of networking is made of actuator (1) and controller (2) two large divisions.A, the B end of actuator (1) connects power supply, and 220V alternating current working power by+5 volts of lead (X, Y) outputs after power module (16) transformation, rectification, filtering, voltage stabilizing is supplied controller (2) work.The control signal of controller (2) overlapping stagnant chain rate in actuator is handled than circuit (14), insert decoding scheme, obtain the control signal of corresponding gear, signal is passed on the motor of fan coil by driving moving circuit (15) of lock and lead (H, M, L), the control motor speed, and by the control of motor to fan in the fan coil, allow fan work corresponding high (H), on (M), low (L) gear.Switch/be provided with key (3) is housed on the controller (2), increases key (4), reduces key (5), interior demonstration (6) and networking interface (8).The current time of the interior display screen of controller (2) display system under off-mode; Under open state, show the duty (high, medium and low, stop) and the mode of operation (freeze, heat) of Current Temperatures, current blower fan simultaneously; Also can key be set, enter the parameter setting of various states successively, as states such as temperature, time, duty, mode of operation, billing parameter, demonstration month, system manager's passwords by pressing.Controller (2) is constantly sampled to Current Temperatures by temperature measurement module (10), and compare with design temperature by data-storing circuit (12) and intelligent diagnostics module (11), thereby output fan coil control signal (Z) makes the blower fan in the fan coil be operated in height, in, low or stop shelves, the time that will be operated on the corresponding gear is write down simultaneously, through after the computing result is deposited in the storer, when the air-conditioning cost of use will be understood by resident family, as long as show state is switched to enquiry fee to be used, every month air-conditioning usage charges just can show in interior display (6), by adding, subtract key (4), (5) but query history record also.During the administration departments charge, can read customer charge, need not bother resident family fully, finish the automatic charging that air-conditioning uses easily, check meter by network.
Fig. 2 has provided inner structure block diagram of the present utility model.The central air conditioner constant temperature taximeter controller (2) of networking is made of single-chip microcomputer (9), temperature measurement module (10), networking interface circuit (8), intelligent diagnostics module (11), data-storing circuit (12), interior display circuit (6).Single-chip microcomputer (9) links to each other with foregoing circuit or module one by one by P.e.c., and carries out unidirectional or two-way information interchange with them.Actuator (1) is inner to be made of functional control module (13), comparator circuit (14), driving lock-in circuit (15) and power module (16).Power module (16) provides working power by lead (X, Y) to controller (2); Single-chip microcomputer in the controller (2) is then carried instruction by the functional control module (13) of lead (Z) in actuator (1).Functional control module (13), comparator circuit (14), driving lock-in circuit (15) connect transmission information successively by P.e.c..Wherein the diagnostic function of intelligent diagnostics module mainly is to handle by software, prevents that master routine is interfered, and the PC value of CPU might be distorted, and flies thereby run, and endless loop occurs, and master routine loses normal operation.Software processes has by Anti-Jamming Technique: software falls into part, instruction redundancy, software WatchDog etc., and their effect is to find in time that the method with software makes system reset again when being interfered in system.So-called software reset imitates reset operation with a series of instructions exactly, and prize procedure runs the PC that flies, and makes system break away from interference, recovers operate as normal.
Fig. 3 is the circuit diagram of the utility model controller.U1 (DS1302) is a clock chip, and the X1 of U1, X2 connect 32.768 crystal oscillators, and U1 CLK meets the P of U3 (89C52)
3.2Mouthful; I/O meets the P of U3
3.4Mouthful; RST meets the P of U3
3.6Mouthful; VC1 connects the battery of 3.6V, and after the power failure, chip is battery-powered, reaches the function when protecting that has a power failure.6 pin of U4 (NE555) chip directly link to each other with the 2nd pin; Meet a variable resistor RT between the 6th pin and the 7th pin; Connect a capacitor C 3 between the 2nd pin and the ground; The P of the 3rd pin of U4 (NE555) and U3 (89C52)
3.3(T1) link to each other; By the output pulse of capacitor C 3 from the 3rd pin of the 7th pin charging and discharging change U4 (NE555) of U4, the value of the width of pulse and electric capacity and resistance R T is directly proportional among the figure.RT is a thermistor, constantly compares with environment temperature and design temperature, and the value of resistance changes the variation of the output pulse of the 3rd pin that will change U4, and the U3 single-chip microcomputer passes through P
3.5(T1) constantly sampling, the output pulse value of U4 (NE555) the 3rd pin converts temperature coefficient to by table lookup function, U3 (89C52) sends control command to actuator (Fig. 4) then, the high, medium and low third gear motor of commander's fan coil carries out work respectively, simultaneously, by the CPU record working time separately, according to a fixing computing formula, from the experience database of project, choose the compensating parameter relevant with current environmental temperature, calculate the energy that each user consumes, thereby calculate expense separately.U9 (472) is the pull-up resistor as the P2 mouth, and U2 (HT1621) is the P by U3
1.3, P
1.4, P
1.5Control liquid crystal display.SW
1, SW
2, SW
3Then be as three function buttons, by U
3P
1.0, P
1.1, P
1.2Judge.Networking of the present utility model realizes by 485 communications.485 communications mainly are made up of chip U3 (89C52) and U7 (MAX487).The U3 major function is that the data that the serial ports with CPU obtains are analyzed, handled; U7 mainly is a level conversion.Reset circuit then is to power on and software watchdog by C8 and R5 capacitance-resistance among the figure, guarantees that CPU normally moves.Whole networking is a multi computer communication, is the process of one-to-many, every all corresponding address of constant temperature taximeter, the P of U3
0.0-P
0.7(U15) links to each other with ground with toggle switch, is used for gating address separately.The P of U3
3.0, P
3.1Link to each other with RX, the TX of U7 respectively, control transmits and receive data, the P of U3
2.7Then link to each other with DE, the RE of U7 as the repeatedly go side of U7, U3 is by after networking, by P
0, P
1, P
2Mouth is controlled other peripherals, and realize the whole network to the time, functions such as temperature adjustment, charging.
Fig. 4 is the circuit diagram of the utility model actuator.Actuator mainly is that the various control commands of being sent by Fig. 3 U3 (89C52) are handled, and controls the action of the high, medium and low third gear motor of fan coil.220V exchanges through 2A fuse (F1) among Fig. 4, by after transformer (B1), rectification (D1, D2), filtering (C8, C9, C6, C7, C10, C11), the voltage stabilizing (78L05), obtains two groups of DC voltage V again
CC(+5V) and+12V ,+5V provides power supply to IC1 (LM324) voltage comparable chip ,+12V provides power supply to IC4 (MC1413) chip for driving.IC1 (LM324) compares the magnitude of voltage of importing, thereby draws one group of magnitude of voltage, drives relay work by IC4 (MC1413) again.C12, C13, C14 reduce the influence of relay spark, make circuit working stable.
Claims (2)
1, a kind of central air conditioner constant temperature taximeter with network savvy, constitute by actuator and controller two large divisions, two parts connect by lead, it is characterized in that being arranged in the single-chip microcomputer of controller, constantly environment temperature is gathered by temperature measurement module, and by data-storing circuit and intelligent diagnostics module, collection result is compared with design temperature, choose corresponding data, send steering order by single-chip microcomputer, by being arranged in the functional control module of actuator, comparator circuit and driving lock-in circuit, the height of commander's fan coil, in, low third gear motor carries out work respectively, simultaneously, by the single-chip microcomputer record working time separately, according to a fixing computing formula, calculate the energy that each user consumes, thereby calculate expense separately,, realize that remote meter reading charges then by the networking interface circuit in the controller.
2, networking central air conditioner constant temperature taximeter according to claim 1, it is characterized in that the networking interface circuit function is the indispensable function of intelligent management, choose RS485 communication chip MAX487, communication distance is 1200 meters, can realize intelligent management, remote meter reading, audits, function such as long-range unique user shutdown.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02277068U CN2591571Y (en) | 2002-08-14 | 2002-08-14 | Networked central heating system constant temperature charge meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02277068U CN2591571Y (en) | 2002-08-14 | 2002-08-14 | Networked central heating system constant temperature charge meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2591571Y true CN2591571Y (en) | 2003-12-10 |
Family
ID=33740769
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN02277068U Expired - Fee Related CN2591571Y (en) | 2002-08-14 | 2002-08-14 | Networked central heating system constant temperature charge meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2591571Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100356140C (en) * | 2005-08-23 | 2007-12-19 | 郑州春泉暖通节能设备有限公司 | Equivalent energy charging method for central air conditioner metering fee |
| CN107166689A (en) * | 2017-04-27 | 2017-09-15 | 广州晟能电子科技有限公司 | A kind of wind blower coil tube temperature controller of time equivalent type energy meter |
-
2002
- 2002-08-14 CN CN02277068U patent/CN2591571Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100356140C (en) * | 2005-08-23 | 2007-12-19 | 郑州春泉暖通节能设备有限公司 | Equivalent energy charging method for central air conditioner metering fee |
| CN107166689A (en) * | 2017-04-27 | 2017-09-15 | 广州晟能电子科技有限公司 | A kind of wind blower coil tube temperature controller of time equivalent type energy meter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Xie Wenbin Document name: Notification of Termination of Patent Right |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |