CN2472196Y - Volume counting charge meter for air conditioner - Google Patents
Volume counting charge meter for air conditioner Download PDFInfo
- Publication number
- CN2472196Y CN2472196Y CN 01213786 CN01213786U CN2472196Y CN 2472196 Y CN2472196 Y CN 2472196Y CN 01213786 CN01213786 CN 01213786 CN 01213786 U CN01213786 U CN 01213786U CN 2472196 Y CN2472196 Y CN 2472196Y
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- China
- Prior art keywords
- signal
- air conditioner
- cpu chip
- module
- pin
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- Expired - Fee Related
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Abstract
The utility model relates to a flux reckoning type air conditioner fare register, which comprises a sensor, a power supply, a fare register and a plurality of connecting wires; after signal amplification and A/D conversion, the sensor signal is input into a CPU chip processed by the CPU, together with the data transmitted by carrier communication; the charging of the air conditioner is fulfilled by means of the software, the consumer data are also transmitted to a host computer by the CPU through carrier communication, and the air conditioner blower is controlled by a control signal sent out by the CPU. The utility model has the advantages of reasonable design, complete functions, high intellectualization degree, accurate computation and convenient installation and usage.
Description
The utility model relates to a kind of taximeter, is specifically related to a kind of meter for air conditioner.
In air-conditioning and construction, each user must pay corresponding cost because of using air-conditioning, and in intelligent building, national relevant policies have been included in cold and hot charging in.But also there is not a kind of intelligent air condition taximeter that adapts with it now, but the mode that adopts artificial estimation, expense apportionment is collected or directly adopt the mode of renting to charge, human factor and random big, original backwardness, it is inaccurate to charge, and no datat shows and to the Based Intelligent Control of blower fan.
The purpose of the utility model aim to provide a kind of intelligent degree height, accurate measurement, multiple functional, install and use volume counting charge meter for air conditioner very easily.
Technical solution of the present utility model is: this volume counting charge meter for air conditioner is by sensor, power supply, taximeter and line thereof are formed, sensor comprises flow sensor and temperature sensor, temperature sensor output signal becomes the voltage signal of certain voltage value after signal amplification circuit amplifies, send into the A/D module, become digital signal, the input cpu chip, finish selection of temperature signal by single-chip microcomputer, the flow sensor output signal also becomes the voltage signal of certain voltage value after signal amplification circuit amplifies, become digital signal through the A/D module, send into cpu chip, finish the collection of flow signal; Cpu chip is a core of the present utility model, handle with the temperature that collects, flow signal with by the data that carrier communication transmits, by built-in account software, finish user's air conditioner cold-heat amount and charge, simultaneously, according to software requirement, the control signal of cpu chip output air-conditioning draught fan after signal processing circuit is handled this blower fan control signal, triggers the different getting types of driving circuit, and then the connection corresponding relays, the operation of control air-conditioning draught fan; In addition, cpu chip also is uploaded to host computer with user data by carrier communication module and line of electric force, finishes data communication, and LCD is controlled by cpu chip, adopts parallel interface to connect, and carries out data presentation by built-in fixed routine; The 220V alternating current is rectified into direct supply through the rectifying and voltage-stabilizing module, provides dc supply to signal amplification circuit, A/D module, cpu chip and signal processing circuit, driving circuit, LCD.
The utility model is on the basis of measuring air-conditioning unit hot and cold water flow and temperature, according to special software for calculation, obtain the user by the time and the air conditioner cold-heat amount of a period of time, again by the charging network that is attached thereto, adjust this user's air conditioner cold-heat amount, this taximeter also has the air-conditioning draught fan control function, controls rotation speed of fan automatically by the room temperature of gathering, and can omit special fan controller (being commonly called as " switch ") during use; Make blower fan control and air conditioning charging function and hardware integrationization, therefore, the intelligent degree height of the utility model, accurate measurement, multiple functional, reasonable in design, function admirable are used with the charging network form, and it is very convenient to install and use, and is a kind of high-tech product
Fig. 1 is the utility model theory diagram
Fig. 2 is the utility model circuit diagram
Below in conjunction with accompanying drawing the utility model is further described in detail:
The utility model is made up of Sensor section, power pack, taximeter box and line thereof.Sensor section comprises flow sensor and temperature sensor, is made into one.Power pack is finished the 220V/50HZ interchange and is converted to sensor and the required DC voltage of integrated circuit (IC) chip, is provided with forceful electric power loops such as blower fan control contact relay simultaneously.On panel, liquid crystal display district and action button district (comprising power switch button, operation of air conditioner mode button, reset button and temperature setting button etc.) are arranged.Liquid crystal area can explicit user indoor-outdoor air temperature, discharge, supply water temperature, return water temperature, operation of air conditioner pattern, wind speed and working time, room design temperature, air conditioner cold-heat amount, fee payable and fault-signal.Various buttons are finished corresponding operation.The operation of air conditioner mode button is pressed cooling or heat supply mode control operation with air-conditioning draught fan under manual mode, temperature is set button and is used to change the room temperature setting value, uses when reset button supplies taximeter work appearance unstable.Be provided with temperature sensor, transmission circuit, blower fan operating condition signal acquisition circuit and other integrated circuit of single-chip microcomputer on the circuit board, and be provided with the teletransmission communication interface, be used for host computer bi-directional transfer of data with machine room.The power carrier mode has been adopted in the teletransmission communication, when taximeter is installed at the scene, need not lay special-purpose communication cable.But maximum transmission distance 3km.Also be provided with data on the circuit board and preserve chip E
2PROM, the long-time data of preserving during outage.Use RVVP type 7 core shielded cables between power pack and the taximeter box.Taximeter software is mainly finished the user's that has jurisdiction over the metering of air conditioner cold-heat amount and parameter demonstration, transmission and communication, comprises air-conditioning draught fan operation control simultaneously.Upper computer software is then finished the charging and the toll administration of air-conditioning system.
Referring to Fig. 1, hot every resistance temperature sensor becomes 1～5V voltage signal after signal amplifies, send into the A/D module, becomes digital signal, and the input cpu chip is finished selection of temperature signal by single-chip microcomputer.The pulse signal of turbine water flow sensor becomes digital signal through the A/D module after the f/V circuit conversion becomes voltage signal 1～5V, send into CPU, finishes the collection of flow signal.5V power supply and the A/D module that signal amplification circuit is required be required+5V, ± 12V power supply and A/D module, cpu chip be required+and 5V power supply etc. provides by the rectifying and voltage-stabilizing module.The rectifying and voltage-stabilizing module is the voltage stabilizing after being rectified into direct current of 220V alternating current, obtain+5V and ± the 12V direct supply.Cpu chip is the brain of this product, be responsible for the temperature that will collect and handle by the data that carrier communication transmits, by built-in account software, finishing user's air conditioner cold-heat amount charges, simultaneously, according to software requirement, export the control signal of air-conditioning draught fan, and give host computer user data upload.The control signal of air-conditioning draught fan operation is 1～5V, and signal processing circuit is handled this control signal, triggers the different getting types of driving circuit, and then connects corresponding contactor, the operation of control air-conditioning draught fan.Data upload is finished by the power carrier module.Carrier module becomes the code of certain format to upload to host computer data-switching, at host computer the code of this form is translated i.e. " decoding ", finishes data communication.Equally, host computer also arrives each user's taximeter with data down transmission.LCD is controlled by CPU, adopts parallel interface to connect., carry out data presentation by built-in fixed routine.
Referring to Fig. 2, the utility model primary controller adopts the 89C52 single-chip microcomputer, by the ADC0809A/D conversion chip, analog signal conversion such as temperature, flow are become digital signal, after in CPU, handling, one direction is shown relevant amount by the SMG019254A chip of LCD: will be sent to host computer for information about by power carrier chip CW-2000 on the other hand, whole device design is as follows:
The A/D modular converter:
Single-chip microcomputer 89C52P
0Mouth (P
00-P
07Pin is 39-32) be address, data multiplex mouth, address signal appears at the negative edge of ALE, therefore need latch address information with a slice 373 latchs.373 latchs, 3 pin, 18 pin, 8 pin, 14 pin, 17 pin, 4 pin, 13 pin, 7 pin join with 39～32 pin of 89C52 respectively, and its 11 pin connects 30 pin (ale signal).1,10 pin ground connection of 373 latchs, 373 latchs are exported 2 pin, 19 pin, 9 pin and are joined with 0809 chip, 25 pin, 24 pin and 23 pin respectively.Adopt the 74LS74 double D trigger to ale signal 2 frequency divisions, obtain frequency and make its clock signal for the 500KHZ signal send 0809 chip, 10 pin; 0809 chip data line D0～D7, pin number is respectively 17,14,15,8,18,19,20,21, links to each other with single-chip microcomputer 39-32 pin respectively.89C52 write signal (16 pin) connects 74LS02 chip 1 pin, and read signal connects 74LS02 chip 5 pin, and 2,4 pin of 28 pin of 89C52 and 74LS02 join, and 3 pin of 74LS02 and 0809 6,22 pin join, and makes 0809 start-up control signal; 6 pin of 74LS02 connect 0809 9 pin; 0809 7 pin connect 9 pin of 74LS02, the 8 pin ground connection of 74LS02, and 10 pin of 74LS02 connect 13 pin of 89C52.After the A/D conversion, the data after single-chip microcomputer is read to change with inquiry mode.
LCD MODULE:
By RD, the WR of 89C52 and P2-7 pin VO through three Sheffer stroke gate SN619254A, RS, CSB, R/W links to each other, produce control signal, so that SMG19254A produces corresponding operating, 8 bit data link to each other with the DB0-DB7 of SMG19254A by the P0 mouth, 14,15 pin provide+the 5V power supply, and 20,19 pin provide+the 4.2V backlight electric power.
The power carrier module:
Adopt power carrier chip CW-2000,8,9 pin link to each other with TxD, the RxD of 89C52, make it to carry out communication with CPU, and 1,2 pin directly links to each other with the 220V single-phase electricity line of force, in order to carrier wave.7 pin and 89C52P
1.5Link to each other, be chip select line, the 3-6 pin respectively ground connection and+5V ,-5V power supply.
Peripheral Serial E
2The PROM module:
Adopt the 93C46 chip, 1 pin and P
1.3Link to each other, be used for the sheet choosing.4,2,3 and P
1.0-P
1.2Link to each other, make and read and write.5～7 ground connection, 8 pin connect+the 5V power supply.
Amplification module is sent in physical signalling collection, change:
Temperature sensor adopts AD590, one termination OP07 amplifier inverting input 2, and it leads to input end 3 through a resistance eutral grounding, and OP07 is designed to phase inverter, when temperature changes at the 0-100 degree, output voltage 0-5V, output signal connects 0809 27 pin; Flow signal becomes 26 pin of 0-5V signal behind the f/v transmitter, finish collection and processing to simulating signal by program:
Power module:
This circuit utilizes optocoupler and peripheral resistance to form logic output analog regulation voltage.
Work as P1.6=0, during P17=0, about output 3V
Work as P1.6=0, during P17=1, about output 6V
Work as P1.6=1, during P17=0, about output 9V
Work as P1.6=1, during P17=1, about output 12V
In addition, inner V
CcThe voltage of (+5V) is exported by LM239.
Switch, the crystal oscillator module:
By P
32-P
35Link to each other with external switch, to carry out external control, the outside provides 6M clock frequency.
Claims (1)
1, a kind of volume counting charge meter for air conditioner, it is characterized in that by sensor, power supply, taximeter and line thereof are formed, sensor comprises flow sensor and temperature sensor, temperature sensor output signal becomes the voltage signal of certain voltage value after signal amplification circuit amplifies, send into the A/D module, become digital signal, the input cpu chip, finish selection of temperature signal by single-chip microcomputer, the flow sensor output signal also becomes the voltage signal of certain voltage value after signal amplification circuit amplifies, become digital signal through the A/D module, send into cpu chip, finish the collection of flow signal; Cpu chip is a core of the present utility model, handle with the temperature that collects, flow signal with by the data that carrier communication transmits, by built-in account software, finish user's air conditioner cold-heat amount and charge, simultaneously, according to software requirement, the control signal of cpu chip output air-conditioning draught fan after signal processing circuit is handled this blower fan control signal, triggers the different getting types of driving circuit, and then the connection corresponding relays, the operation of control air-conditioning draught fan; In addition, cpu chip also is uploaded to host computer with user data by carrier communication module and line of electric force, finishes data communication, and LCD is controlled by cpu chip, adopts parallel interface to connect, and carries out data presentation by built-in fixed routine; The 220V alternating current is rectified into direct supply through the rectifying and voltage-stabilizing module, provides dc supply to signal amplification circuit, A/D module, cpu chip and signal processing circuit, driving circuit, LCD.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01213786 CN2472196Y (en) | 2001-04-04 | 2001-04-04 | Volume counting charge meter for air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01213786 CN2472196Y (en) | 2001-04-04 | 2001-04-04 | Volume counting charge meter for air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2472196Y true CN2472196Y (en) | 2002-01-16 |
Family
ID=33632670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01213786 Expired - Fee Related CN2472196Y (en) | 2001-04-04 | 2001-04-04 | Volume counting charge meter for air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2472196Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1328573C (en) * | 2004-08-26 | 2007-07-25 | 郑州春泉暖通节能设备有限公司 | Electric power carrier wave type temperature control type central air conditioner fee charger |
| CN108627209A (en) * | 2017-03-20 | 2018-10-09 | 北京华电滢欣科技有限公司 | A kind of water metering method, water flowmeter and with water charge system |
-
2001
- 2001-04-04 CN CN 01213786 patent/CN2472196Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1328573C (en) * | 2004-08-26 | 2007-07-25 | 郑州春泉暖通节能设备有限公司 | Electric power carrier wave type temperature control type central air conditioner fee charger |
| CN108627209A (en) * | 2017-03-20 | 2018-10-09 | 北京华电滢欣科技有限公司 | A kind of water metering method, water flowmeter and with water charge system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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 |