CN2890846Y - Household multi-port central air conditioner charging device - Google Patents

Abstract

The utility model relates to a central air-conditioning accounting device, in particular to a household multi-port central air-conditioning accounting device, which comprises a host processor, a periphery circuit, and a built-in or external memorizer or protection circuit, wherein the host processor connects with at least one auxiliary CPU with each auxiliary CPU connecting with two I/O ports equipped by the host processor CPU through the COM ports RXD and TXD. The I/O port of the auxiliary processor CPU respectively series connects with the condition signals output terminal of the high, the medium and the low gear fans of the central air-conditioning accounting device fan coil pipe, and the I/O port of the host CPU connects with the digit output terminal of a temperature sensor which is equipped on the water inlet host pipe of each unit of users. The auxiliary CPU is equipped with the built-in memorizer or the external memory chip, and a power supply circuit provides operation power supply for each circuit of the accounting device. This accounting device has the advantages of reasonable design, simple installation, low cost and precise measurement, thereby having quite excellent popularization and application values.

Description

Each door type multiport central air conditioner taximeter

One, technical field

The utility model relates to a kind of central air conditioner taximeter, particularly relates to a kind of each door type multiport central air conditioner taximeter.

Two, background technology

Along with the raising day by day of people's living standard, the requirement of the personalization of central air conditioner and raising central air conditioner comfortableness is also more and more urgent, implements central air conditioner branch family and charges extremely urgent especially according to quantity.The relevant central air conditioner taximeter of the applicant has multinomial invention, Chinese patent Chinese patent ZL01251884.0 for example, CN2495941Y " state time type central air conditioner taximeter ", be utilize the blower fan height, in, the operation information of the end, neutral gear is as the foundation of chargeing; Application number is 200410060478.X, " the carrier wave mode of electric power temperature control type central air conditioner taximeter " of publication number CN1587911A, and it is to utilize the power line carrier mode that its information transmits, and realizes the centralized automatic meter-reading function; ZL03245602.6, " the central air conditioner taximeter " of CN2620832Y, be to contain a microprocessor at least, 1～N independent counting unit, utilize microprocessor to finish that collection to data, computing and processing realize chargeing, one group of state input port expansion of each microprocessor connects four microprocessors, realizes 1～N user's air conditioning charging and monitoring successively; They have solved air-conditioning charging problem under different situations, but also exist defective to a certain degree, can not utilize a central air conditioner message accounting to realize multiport measurement data acquisition, transmission and power down memory function, the electronic mediation valve unsteady flow amount function of saving energy and reduce the cost, the arrearage disable function, the continuous data hold function, centralized management function etc.

Three, summary of the invention

The utility model is the problem that design exists according to prior art, and the cost that designs and manufactures is lower, has the central air conditioner taximeter of each door type multiport.

The technical solution adopted in the utility model:

A kind of each door type multiport central air conditioner taximeter; contain primary processor and peripheral circuit; built-in or external memorizer or holding circuit; indicative control unit; the communication interface circuit; the I/O port P0 of primary processor CPU; P1; P2; per three of the partial function pin of P3 is one group; connect each independent counting unit central air conditioner fan coil height respectively; in; low-grade fan condition output terminal; described primary processor is connected with at least one pair processor CPU; each is paid processor CPU and connects with two I/O ports that primary processor CPU sets by its COM port RXD and TXD; the I/O port P0 of described pair of processor CPU; P1; P2; per three of the partial function pin of P3 is one group; connect an independent counting unit central air conditioner fan coil height respectively; in; low-grade fan condition signal output part; the I/O port of primary processor CPU connects the digital output end of temperature sensor; or the I/O port of paying processor CPU connects the digital output end of temperature sensor; temperature sensor is located on the water inlet manifold of unit users; pay processor CPU and be provided with internal memory or external storage chip, power circuit provides working power for each circuit of taximeter.

Described pair of CPU is N, and N is 〉=1 natural number; The I/O port P10～P17 of the 1st pair of CPU setting, INT1, INT0, T1, T2, P21～P26 connect high, medium and low each gear fan speed state identification circuit of fan coil of some, and P00, P01 connect 6,5 pin of storage chip U3; The I/O port P10～P17 of N pair of CPU setting, INT1, INT0, T1, T2, P21～P26 connect high, medium and low each gear fan speed state identification circuit of fan coil of some, and P00, P01, P02, RD, RESET connection reset, 2,6,5,1,7 pin of storage chip Un41.

Electrically operated valve is located on the water inlet manifold, and the P12 and the P10 that set the I/O port of primary processor CPU connect the test side of electrically operated valve testing circuit and the input end of control circuit respectively, and connects electrically operated valve by control circuit by light even summation controllable silicon output terminal.

The output terminal of digital temperature sensor connects the P01 port of host CPU or pays the P20 port of processor CPU; Or the output terminal of thermistor connects the DISCHG end of comparer, connects the THOLD end of comparers simultaneously by comparison resistance RT and resistance R 2, and the output terminal OUT of comparer connects the P01 port of host CPU or pays the P20 port of processor CPU.

The H0 of described fan speed state identification circuit, M0, L0 port connect high, medium and low three speed stages of blower fan respectively, become digital quantity to connect main, as to pay CPU I/O part port through circuit conversion.

Described communication interface circuit is for showing the communication interface circuit of communication interface circuit, uplink communication interface circuit and indicative control unit, show the communication interface circuit of communication interface circuit by interface connection indicative control unit, the uplink communication interface circuit connects host computer by interface.

Two the I/O port P11 and the P17 that set host CPU connect serial ports RXD and the TXD that pays CPU, INT1 connects the DINT end of the circuit U 31 of communication interface, the INT0 port connects clock-reset, T1,2 of the U5 of T0 and WR port connection watchdog circuit, 1 and 6 pin, the RD port connects RE and the DE end of communication module U4 by the amplifying circuit U18 in the uplink communication circuit, the P00 port connects the DOUT end that shows communication interface circuit U 30, the P01 port connects 7 pin of clock chip U7 or the output terminal of digital temperature sensor, P02～P07, P22～P24 port connects the fan condition identification circuit, the P20 port connects the RD end of paying CPU, the P21 end connects pays resetting of CPU, and the P27 end connects the I/O port of clock chip U7.

The R of described communication module U4, D end connects the host CPU serial ports, and B, A end connects the holding circuit of being made up of diode D1～D4, resistance R 3, R4, R5, anti-thunder tube VR1, and connects uplink communication interface J1 at the R5 two ends; Described demonstration communication interface circuit is two light idol circuit U 30 and U31, and its output COMM connects and shows communication interface CN1.

The I/O port P10 that sets indicative control unit CPU connects 6 pin of watchdog chip U15, P11, P12 and P14 connect shift knob S1, S2 and S3 respectively, INT1, RD, WR, P00～P07, P20～P25, ALE/P connect card reading interface JP1, T0, P17, P10, P16 connect LCD LCD interface J10, P13, P15 connect the DOUT1 end of indicative control unit communication interface circuit U 14 and the DINT1 end of U13 respectively, its COMM1 port connects communication interface J9, communication interface J9 connects with showing communication interface CN1, and the control that realizes chargeing shows; INT0 connects infrared interface J8.

Described master, pair cpu chip, indicative control unit CPU are AT89C52, AT89S52, P89C54BP and P89C58A, or be MC68HC11A8, MC68HC11E9, MC68HC16, or be PIC16C877A, or EM78P447, or MSP430F147 and MSP430F435, E78C52D and E78E58B; Watchdog chip U5 is X5045, and U15 is MAX813, or IMP 813; Communication module is MAX487; Storage chip U3 is AT24C04, or X5045, and the fan coil state identification circuit is half-wave rectifying circuit and photoelectricity coupled circuit, and photoelectric coupled device is TLP521; Comparer U11 is the NE555 chip, and clock chip is DS1302, and power supply is 7805 three-terminal voltage-stabilizing pipes.

Positive beneficial effect of the present utility model:

1, multiport central air conditioner taximeter of each household preparation, it is reserved with control interface, the user can select electronic mediation valve is installed according to the situation of oneself, and this utility model is provided with measurement data acquisition, transmission and power down memory function, has the energy-saving and cost-reducing function of electric control valve unsteady flow amount.

Electric control valve unsteady flow amount is energy-saving and cost-reducing: when user's first typhoon coiler starts, total electrically operated valve of registering one's residence is opened, when all fan coils of user cut out, total electrically operated valve of registering one's residence is closed, with each household is the unsteady flow amount Energy Saving Control that central air conditioner system is realized in a unit, both solve the too much and control failure problem of conventional fan coil pipe electrically operated valve, reached unsteady flow amount purpose of energy saving again.

The arrearage disable function: the porch preparation of each household central air conditioner has electrically operated valve, directly assigns forbidding by administrative center's computer and closes user's central air conditioner porch electrically operated valve, cuts off user's center air-condition circle water; If when electrically operated valve not being installed, assigning illegal instruction by administrative center's computer and cut off user's fan coil power supply realization Long-distance Control.

2, built-in pair of CPU of the utility model, memory module, display module, communication module, thus metrical information is forever preserved on-the-spot the demonstration, is uploaded to the centralized automatic meter-reading management system.Be provided with the uplink communication interface, connect with CJ-3000 charging main frame, by CJ-Wxp accounting management software and charging computer (the charging computer is arranged on the management machine room), property is by different load right and land password and enter accounting management software total system is managed, all showed the running status of meter to CJ-3000 charging main frame in the detection system in 24 hours, and make a copy of continuous data with all table meters of storage system inside automatically according to fixing time, so its have easy to use, charge accurately, long characteristics of metering data inventory information holding time.

This each door type multiport central air conditioner taximeter management is chargeed reasonable in design, installs simply, and use, easy to maintenance, with low cost, accurate measurement is realized the customer requirement of " using charge according to quantity as required ", has fabulous application value.

Four, description of drawings

Fig. 1: each door type multiport central air conditioner taximeter general diagram

Fig. 2: each door type multiport central air conditioner taximeter logical diagram

Fig. 3: each door type multiport central air conditioner taximeter main frame host CPU external cabling schematic diagram

Fig. 4: each door type multiport central air conditioner taximeter main frame is paid CPU external cabling schematic diagram

Fig. 5: each door type multiport central air conditioner taximeter host stores, communication, display interface elementary diagram

Fig. 6: each door type multiport central air conditioner taximeter host power supply and clock elementary diagram

Fig. 7: each door type multiport central air conditioner taximeter host computer control and detection module elementary diagram

Fig. 8: each door type multiport central air conditioner taximeter main frame temperature acquisition schematic diagram

Fig. 9: each door type multiport central air conditioner taximeter indicative control unit schematic diagram

Figure 10: the CPU element elementary diagram is paid in the expansion of each door type multiport central air conditioner taximeter

Five, specific embodiment

Embodiment 1: the I/O port referring to host CPU among Fig. 1, the figure connects a serial ports of paying CPU, the I/O that pays CPU connects a plurality of data inputs and storer, the expansion of realization port, reach the purpose that multiport charges, host CPU connects with indicative control unit to realize chargeing and shows, connects the long-range demonstration control of realization with the uplink communication interface and charges.

Referring to Fig. 3,4,5,6,7,8, main, pay cpu chip U1 and U2 and all adopt AT89C52, the I/O port P11 of host CPU and P17 connect the serial ports of paying CPU, P12 and P10 connect the test side of testing circuit U9 of electrically operated valve and the input end of control circuit U10 respectively, P13 and P14 connect LED interface CN3 by resistance R 7 and R6 respectively, LED2 and LED1 pilot lamp, INT1 connects the DINT end that shows communication interface circuit U 31, INT0 connects clock-reset, T1,2 of the U5 of T0 and WR connection watchdog circuit, 1 and 6 pin, RD connects the input end of uplink communication interface circuit, promptly by triode Q3, resistance R 21, R22, the amplifying circuit U18 that R8 forms connects RE and the DE port of communication module U4, P00 connects the DOUT port that shows communication interface circuit U 30, P01 connects 7 pin of clock chip U7 or the output terminal of digital temperature sensor, P02～P07, P22～P24 connects data acquisition circuit, P00～P07 connects simultaneously and draws exclusion PR1, P20 connects the RD end of paying CPU, P21 connects resetting of pair CPU, P27 connects the I/O port of clock chip, X1 and X2 connect crystal oscillator, EA/VP joining power VCC.

P10～P17, the INT1, INT0, T1, T2, the P20～P26 that pay cpu chip U2 connect data acquisition circuit, wherein P20 connects the backup temperature Acquisition Circuit, P00, P01 connect 6,5 pin of storage chip U3, EA/VP joining power VCC, X1 and X2 connect crystal oscillator, WR connects the operation LED light, and TXD connects pilot lamp, and P00～P07 connects simultaneously and draws exclusion.

Communication module U4 is MAX487, and its R, D end connects the serial ports of host CPU chip U1, and B, A end connects the holding circuit of being made up of diode D1～D4, resistance R 3, R4, R5, anti-thunder tube VR1, and connects uplink communication interface J1 at the R5 two ends.Show that the communication interface circuit by two light idol circuit U 30 and U31, shows that the DOUT of communicating circuit U30 connects the P00 port of host CPU, COMM connects display board communication interface CN1.

Data acquisition circuit U8 is the fan speed state identification circuit, be high, medium and low three speed stages that H0, M0, L0 port connect blower fan respectively, convert the I/O port that digital quantity connects the master, pays CPU to through half-wave rectifying circuit and photoelectricity coupled circuit, have 9 groups.LED and R1 form fan power and whether connect the reverse-examination slowdown monitoring circuit, guarantee that all blower fans connect civil power phase line unanimity; The electrically operated valve on off state is by the P12 port of the CHECK1 connection host CPU of testing circuit U9, and host CPU exports control circuit U10 to, and U10 connects electrically operated valve by photoelectricity coupling and controllable silicon output terminal, thus the switch of control electrically operated valve.

Digital temperature sensor directly connects the P01 port of host CPU; Or use thermal resistance sensor, the output terminal of thermal resistance connects the DISCHG end of NE555 comparer, the THOLD and the end that connect comparer simultaneously by comparison resistance RT and resistance R 2, the output of comparer connects the I/O port of host CPU, 2,6 pin short circuits of comparer, 5,6 pin respectively by capacity earth, reset and the VCC short circuit.

The power supply of above circuit is the output VCC of 12V and 7805 three-terminal voltage-stabilizing circuit U 6,

Referring to Fig. 9, indicative control unit cpu chip U12 adopts AT89C52, its P10 port connects 6 pin of MAX813 watchdog chip U15, P11, P12 and P14 connect shift knob S1, S2 and S3 respectively, INT1, RD, WR, P00～P07, P20～P25, ALE/P connect card reading interface JP1, T0, P17, P10, P16 connect LCD LCD interface J10, wherein P16 resistance in series R13 also; P13, P15 connect by the DOUT1 end of light idol U14 and U13 circuit and DINT1 end, and its output terminal COMM1 connects communication interface J9, and communication interface J9 connects with display board communication interface CN1, and the control that realizes chargeing shows; INT0 connects an infrared integrated reception J8.EA/VP joining power VCC, X1, X1 connect crystal oscillator, and P00～P07 draws exclusion PR3 on connecting.

Power supply is the output VCC of 12V, 7805 three-terminal voltage-stabilizing circuit U 16.

Numeral or thermistor (temperature) sensor are set on the water inlet manifold of registering one's residence, each is registered one's residence and establishes nine fan coils, by the high, medium and low and zero connection terminal in parallel running status of discerning fan coil of lead with fan coil, electrically operated valve or indoor fan coil general supply that host CPU is registered one's residence on the house steward to central air conditioner are controlled.Measuring principle is (can set inflow temperature as required) in the resultful air-conditioning situation time, by the air-conditioning service time of all each gears of central air conditioner fan coil of metering family, multiply by corresponding gear heat exchange power, calculate the energy of working as of each typhoon coiler, with indoor all fan coils consume after the energy addition, multiply by unit price, can realize " using charge according to quantity as required ".Additional electrical movable valve control port, on-the-spot indication, teletransmission collection are copied functions such as interface, on-the-spot IC-card; Realize arrearage forbidding teletransmission turn-off function.

When total electrically operated valve pattern is registered one's residence in control, when indoor first typhoon coiler operation, open the electrically operated valve of registering one's residence automatically, when indoor all fan coils are out of service, promptly close the electrically operated valve of registering one's residence automatically,

Referring to Fig. 2, taximeter is the charging principle that produces effect, be exactly user's central air conditioner can refrigeration and heat supply and normal operating position under just charging.

Embodiment 2: referring to Fig. 1,2,3,5,6,7,8,9, electrical schematic diagram is identical with embodiment 1 with principle of work, no longer repeat, difference is that the I/O port of host CPU does not connect a pair CPU element, data acquisition circuit is three groups, three fan condition identification circuits are promptly arranged, three central air conditioner independent counting unit, may command three typhoon coilers.

Embodiment 3: referring to Fig. 1,2,3,4,5,6,7,8,9,10, electrical schematic diagram is identical with embodiment 1 with principle of work, no longer repeat, difference is that the I/O port P11 and the P17 of host CPU connects serial ports RXD and the TXD that cpu chip Un4 is paid in expansion simultaneously, expansion is paid resetting of CPU and is connected to carry and reset and store watchdog chip Un41 reseting port, the RD port connects 1 pin of Un41, P00, P01, P02 connects 2 of chip Un41,6,5 pin, three on the other parts function pin of I/O port is one group and connects 6 groups of central air conditioner fan coil height respectively, in, low-grade fan condition signal output part, realization port expansion, the i.e. state of the measurable and 15 groups of fan coils of control of multiport central air conditioner taximeter.X1 and X2 port that cpu chip Un4 is paid in expansion connect crystal oscillator, and P00～P07 connects simultaneously and draws exclusion PRn3, and the WR port connects run indicator, and P20 is the backup temperature test side.Expansion is paid cpu chip Un4 and is adopted AT89C52, and watchdog chip is X5045.

Analogize according to embodiment 3, the I/O port of host CPU can also connect 3,4,5 ... CPU element is paid in a plurality of expansions, realizes the expansion of Charging Detail Record unit, this no longer auspicious stating.

Claims (10)

1; a kind of each door type multiport central air conditioner taximeter; contain primary processor and peripheral circuit; built-in or external memorizer or holding circuit; indicative control unit; the communication interface circuit; the I/O port P0 of primary processor CPU; P1; P2; per three of the partial function pin of P3 is one group; connect each independent counting unit central air conditioner fan coil height respectively; in; low-grade fan condition output terminal; it is characterized in that: described primary processor is connected with at least one pair processor CPU; each is paid processor CPU and connects with two I/O ports that primary processor CPU sets by its COM port RXD and TXD; the I/O port P0 of described pair of processor CPU; P1; P2; per three of the partial function pin of P3 is one group; connect an independent counting unit central air conditioner fan coil height respectively; in; low-grade fan condition signal output part; the I/O port of primary processor CPU connects the digital output end of temperature sensor; or the I/O port of paying processor CPU connects the digital output end of temperature sensor; temperature sensor is located on the water inlet manifold of unit users; pay processor CPU and be provided with internal memory or external storage chip, power circuit provides working power for each circuit of taximeter.

2, taximeter according to claim 1 is characterized in that: described pair of CPU is N, and N is 〉=1 natural number; The I/O port P10～P17 of the 1st pair of CPU setting, INT1, INT0, T1, T2, P21～P26 connect high, medium and low each gear fan speed state identification circuit of fan coil of some, and P00, P01 connect 6,5 pin of storage chip U3; The I/O port P10～P17 of N pair of CPU setting, INT1, INT0, T1, T2, P21～P26 connect high, medium and low each gear fan speed state identification circuit of fan coil of some, and P00, P01, P02, RD, RESET connection reset, 2,6,5,1,7 pin of storage chip Un41.

3, taximeter according to claim 1, it is characterized in that: electrically operated valve is located on the water inlet manifold, the P12 and the P10 that set the I/O port of primary processor CPU connect the test side of electrically operated valve testing circuit and the input end of control circuit respectively, and connect electrically operated valve by control circuit by light even summation controllable silicon output terminal.

4, taximeter according to claim 3 is characterized in that: the output terminal of digital temperature sensor connects the P01 port of host CPU or pays the P20 port of processor CPU; Or the output terminal of thermistor connects the DISCHG end of comparer, connects the THOLD end of comparers simultaneously by comparison resistance RT and resistance R 2, and the output terminal OUT of comparer connects the P01 port of host CPU or pays the P20 port of processor CPU.

5, taximeter according to claim 1, it is characterized in that: the H0 of described fan speed state identification circuit, M0, L0 port connect high, medium and low three speed stages of blower fan respectively, become digital quantity to connect main, as to pay CPU I/O part port through circuit conversion.

6, taximeter according to claim 1, it is characterized in that: described communication interface circuit is for showing the communication interface circuit of communication interface circuit, uplink communication interface circuit and indicative control unit, show the communication interface circuit of communication interface circuit by interface connection indicative control unit, the uplink communication interface circuit connects host computer by interface.

7, taximeter according to claim 1, it is characterized in that: two the I/O port P11 and the P17 that set host CPU connect serial ports RXD and the TXD that pays CPU, INT1 connects the DINT end of the circuit U 31 of communication interface, the INT0 port connects clock-reset, T1,2 of the U5 of T0 and WR port connection watchdog circuit, 1 and 6 pin, the RD port connects RE and the DE end of communication module U4 by the amplifying circuit U18 in the uplink communication circuit, the P00 port connects the DOUT end that shows communication interface circuit U 30, the P01 port connects 7 pin of clock chip U7 or the output terminal of digital temperature sensor, P02～P07, P22～P24 port connects the fan condition identification circuit, the P20 port connects the RD end of paying CPU, the P21 end connects pays resetting of CPU, and the P27 end connects the I/O port of clock chip U7.

8, taximeter according to claim 7, it is characterized in that: the R of described communication module U4, D end connects the host CPU serial ports, B, A end connects the holding circuit of being made up of diode D1～D4, resistance R 3, R4, R5, anti-thunder tube VR1, and connects uplink communication interface J1 at the R5 two ends; Described demonstration communication interface circuit is two light idol circuit U 30 and U31, and its output COMM connects and shows communication interface CN1.

9, taximeter according to claim 1, it is characterized in that: the I/O port P10 that sets indicative control unit CPU connects 6 pin of watchdog chip U15, P11, P12 and P14 connect shift knob S1 respectively, S2 and S3, INT1, RD, WR, P00～P07, P20～P25, ALE/P connects card reading interface JP1, T0, P17, P10, P16 connects LCD LCD interface J10, P13, P15 connects the DOUT1 end of indicative control unit communication interface circuit U 14 and the DINT1 end of U13 respectively, its COMM1 port connects communication interface J9, communication interface J9 connects with showing communication interface CN1, and the control that realizes chargeing shows; INT0 connects infrared interface J8.

10, according to the described taximeter of the arbitrary claim of claim 1～9, it is characterized in that: described master, pair cpu chip, indicative control unit CPU are AT89C52, AT89S52, P89C54BP and P89C58A, or be MC68HC11A8, MC68HC11E9, MC68HC16, or be PIC16C877A, or EM78P447, or MSP430F 147 and MSP430F435, E78C52D and E78E58B; Watchdog chip U5 is X5045, and U15 is MAX813, or IMP813; Communication module is MAX487; Storage chip U3 is AT24C04, or X5045, and the fan coil state identification circuit is half-wave rectifying circuit and photoelectricity coupled circuit, and photoelectric coupled device is TLP521; Comparer U11 is the NE555 chip, and clock chip is DS1302, and power supply is 7805 three-terminal voltage-stabilizing pipes.

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