CN103912913A

CN103912913A - Linkage control circuit of heating and ventilation device, system and method

Info

Publication number: CN103912913A
Application number: CN201310006551.4A
Authority: CN
Inventors: 梁锐; 李德辉; 雷海涛; 程竑理; 陈强; 项方
Original assignee: Midea Group Co Ltd; Guangdong Midea HVAC Equipment Co Ltd
Current assignee: Midea Group Co Ltd; Guangdong Midea HVAC Equipment Co Ltd
Priority date: 2013-01-08
Filing date: 2013-01-08
Publication date: 2014-07-09
Anticipated expiration: 2033-01-08
Also published as: CN103912913B

Abstract

The invention is suitable for an automatic control technology and provides a linkage control circuit of a heating and ventilation device. The linkage control circuit of the heating and ventilation device is connected between a main heating and ventilation device and a standby heating and ventilation device and comprises a current detection module connected with a compressor power line of the standby heating and ventilation device and used for detecting current of the compressor power line and outputting detection information, and a switch control module respectively and electrically connected with the current detection module and the standby heating and ventilation device and controlling turning on and off of a control switch connected with the standby heating and ventilation device according to a power state of the main heating and ventilation device so as to control starting and shutdown of the standby heating and ventilation device. The starting or shutdown of the standby heating and ventilation device is controlled according to a running power state of the main heating and ventilation device, the standby heating and ventilation device shuts down to save energy when the main heating and ventilation device can meet the performance requirement, intelligent energy-saving application of the standby heating and ventilation device with large energy consumption is achieved, and environment-friendly reasonable utilization of device energy is achieved.

Description

The linkage control circuit of heating and ventilating equipment, system and method

Technical field

The invention belongs to automatic control technology field, relate in particular to linkage control circuit, the system and method for heating and ventilating equipment.

Background technology

At present, heating and ventilating equipment system is a part of building from function, and the ruuning situation of heating and ventilating equipment system is closely bound up with the interior user's of building daily life.Energy-conserving and environment-protective have been trend, the transformation of machine room base station energy-saving, has changed the heating and ventilating equipment of energy-conserving and environment-protective, and has abandoned the heating and ventilating equipment that former energy consumption is large completely, cause device resource waste, and large energy consumption heating and ventilating equipment also can have been caused to energy waste with together with the heating and ventilating equipment of energy-conserving and environment-protective simultaneously always.Existing heating and ventilating equipment cannot be correct linkage work, cannot realize Optimal Allocation of Resources.

Summary of the invention

The object of the embodiment of the present invention is to provide a kind of linkage control circuit of heating and ventilating equipment, is intended to solve the linkage work that existing heating and ventilating equipment cannot be correct, cannot realize the problem of Optimal Allocation of Resources.

The embodiment of the present invention is achieved in that a kind of linkage control circuit of heating and ventilating equipment, and it is connected between main heating and ventilating equipment and heating and ventilating equipment for subsequent use, and in order to control the unlatching of described heating and ventilating equipment for subsequent use or to close, described linkage control circuit comprises:

Current detection module, this current detection module is connected with the compressor power line of described heating and ventilating equipment for subsequent use, in order to detect electric current the output detections information of described compressor power line;

Switch control module, this switch control module is electrically connected with described current detection module and described heating and ventilating equipment for subsequent use, in order to receive the detection information of described current detection module output and to judge that according to described detection information described heating and ventilating equipment for subsequent use is in opening or closed condition; And

Gauge tap, this gauge tap is connected on the on-off circuit of described heating and ventilating equipment for subsequent use, described switch control module according to the power rating of described main heating and ventilating equipment the switching by controlling described gauge tap to control the unlatching of described heating and ventilating equipment for subsequent use or to close.

Another object of the embodiment of the present invention is to provide a kind of coordinated control system of heating and ventilating equipment, comprise at least two heating and ventilating equipments, described at least two heating and ventilating equipments comprise main heating and ventilating equipment and heating and ventilating equipment for subsequent use, and described coordinated control system also comprises the linkage control circuit of above-mentioned heating and ventilating equipment

Another object of the embodiment of the present invention is to provide a kind of heating and ventilating equipment linkage control circuit, is connected between at least two heating and ventilating equipments, and in order to control the unlatching of described heating and ventilating equipment or to close, described linkage control circuit comprises:

Current detection module, this current detection module is connected with the compressor power line of described heating and ventilating equipment, in order to detect electric current the output detections information of described compressor power line;

Switch control module, this switch control module is electrically connected with described current detection module and described heating and ventilating equipment, in order to receive the detection information of described current detection module output and to judge that according to described detection information described heating and ventilating equipment is in opening or closed condition, and described switch control module is according to the unlatching of heating and ventilating equipment described in the power rating control of the described heating and ventilating equipment of opening or close.

Another object of the embodiment of the present invention is to provide a kind of heating and ventilating equipment coordinated control system, comprises at least two heating and ventilating equipments, and described coordinated control system also comprises above-mentioned heating and ventilating equipment linkage control circuit.

Another object of the embodiment of the present invention is the control method of the coordinated control system that a kind of heating and ventilating equipment based on above-mentioned is provided, and comprises the following steps:

Detect electric current the output detections information of the compressor power line of described heating and ventilating equipment for subsequent use by described current detection module;

Judge that according to described detection information described heating and ventilating equipment for subsequent use is in opening or closed condition;

Judge that whether described main heating and ventilating equipment power enough, if so, and described heating and ventilating equipment for subsequent use control described gauge tap in opening switching to close described heating and ventilating equipment for subsequent use; If not, and described heating and ventilating equipment control in off position described gauge tap switching to open described heating and ventilating equipment for subsequent use.

Another object of the embodiment of the present invention is to provide a kind of control method of the heating and ventilating equipment coordinated control system based on above-mentioned, comprises the following steps:

Detect electric current the output detections information of the compressor power line of described heating and ventilating equipment by described current detection module;

The described heating and ventilating equipment being detected according to described detection information judgement is in opening or closed condition;

Whether the heating and ventilating equipment that judges described opening operates in normal condition, if the heating and ventilating equipment of described opening operates in underpower state, controls the described heating and ventilating equipment of the closed condition of respective numbers and opens; If the heating and ventilating equipment of described opening operates in the superfluous state of power, control the described heating and ventilating equipment of the opening of respective numbers and close.

The linkage control circuit of above-mentioned heating and ventilating equipment detects the compressor power electric current of heating and ventilating equipment for subsequent use to judge the open and-shut mode of heating and ventilating equipment for subsequent use, and according to the operate power state of main heating and ventilating equipment to control the unlatching of heating and ventilating equipment for subsequent use or to close, realize and in the time that main heating and ventilating equipment can meet performance requirement, closed heating and ventilating equipment for subsequent use to save energy consumption, can open heating and ventilating equipment for subsequent use in main heating and ventilating equipment fault or while can not meet performance requirement and close symbol related request to ensure HVAC environment, the intelligent power saving of having realized the heating and ventilating equipment for subsequent use that energy consumption is larger uses, and the environmental protection that has realized the equipment energy rationally utilizes, optimization configuration device resource, reduce the waste of heating and ventilating equipment resource.

Brief description of the drawings

Fig. 1 is the module frame chart of the linkage control circuit of the heating and ventilating equipment that provides of the embodiment of the present invention;

Fig. 2 is the circuit general principle figure of the switch control module that provides of the embodiment of the present invention;

Fig. 3 is the structured flowchart of the linkage control circuit of the heating and ventilating equipment that provides of the embodiment of the present invention;

Fig. 4 is the current detection module circuit general principle figure that the embodiment of the present invention provides;

Fig. 5 is the module frame chart of the heating and ventilating equipment linkage control circuit that provides of the embodiment of the present invention;

Fig. 6 is the circuit general principle figure of the switch control module that provides in accompanying drawing 5 embodiment of the present invention;

Fig. 7 is the structured flowchart of the heating and ventilating equipment linkage control circuit that provides of the embodiment of the present invention;

Fig. 8 is the current detection module circuit general principle figure providing in accompanying drawing 5 embodiment of the present invention;

Fig. 9 is the flow chart of the inter-linked controlling method of the heating and ventilating equipment that provides in the embodiment of the present invention;

Figure 10 is the method flow diagram that the control heating and ventilating equipment for subsequent use that provides in the embodiment of the present invention cuts out;

Figure 11 is the method flow diagram that the control that provides in embodiment of the present invention heating and ventilating equipment for subsequent use is opened;

Figure 12 is the flow chart of the heating and ventilating equipment inter-linked controlling method that provides in the embodiment of the present invention.

Detailed description of the invention

In order to make the technical problem to be solved in the present invention, technical scheme and beneficial effect clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.

Heating and ventilating equipment is in the time that certain environment moves, can judge the whether enough or residue of power of heating and ventilating equipment under opening according to the running status of himself or environment temperature, understandably, the enough or residue of power can be expressed as normal condition or abnormal condition.

For example, under refrigerating state, environment temperature thinks that between 35 ± 2 DEG C to 28 ± 2 DEG C the heating and ventilating equipment under opening normally moves, if when environment temperature is greater than 35 ± 2 DEG C, thinks that the heating and ventilating equipment underpower under opening need to be opened the heating and ventilating equipment under stand-by state; If think when environment temperature is less than 28 ± 2 DEG C, the heating and ventilating equipment power under opening remains, and need to close the heating and ventilating equipment of corresponding opening.

Under heating state, environment temperature thinks that between 15 ± 2 DEG C to 8 ± 2 DEG C the heating and ventilating equipment under opening normally moves, if when environment temperature is greater than 8 ± 2 DEG C, think that the heating and ventilating equipment underpower under opening need to be opened the heating and ventilating equipment under stand-by state; If think when environment temperature is less than 15 ± 2 DEG C, the heating and ventilating equipment power under opening remains, and need to close the heating and ventilating equipment of corresponding opening.Above-mentioned environment temperature can utilize the temperature sensor of heating and ventilating equipment self to detect.Certainly, if when the heating and ventilating equipment that acquiescence is opened breaks down, also need to open the heating and ventilating equipment under stand-by state.To provide intelligence to open and close the system and method for the heating and ventilating equipment under stand-by state below.

As shown in Figure 1, it is the linkage control circuit module frame chart of a kind of heating and ventilating equipment in an embodiment, the linkage control circuit 100 of heating and ventilating equipment is connected between main heating and ventilating equipment 10 and heating and ventilating equipment for subsequent use 20, at least each one of main heating and ventilating equipment 10 and heating and ventilating equipment for subsequent use 20, the linkage control circuit 100 of heating and ventilating equipment is for controlling the unlatching of heating and ventilating equipment 20 for subsequent use or closing, and linkage control circuit 100 comprises current detection module 110, switch control module 120 and gauge tap 130.

Current detection module 110 is connected with the compressor power line 22 of heating and ventilating equipment 20 for subsequent use, detects electric current the output detections information of compressor power line; Switch control module 120 is electrically connected with current detection module 110 and heating and ventilating equipment for subsequent use 20 respectively, and the detection information of exporting in order to received current detection module 110 also judges that according to detection information heating and ventilating equipment 20 for subsequent use is in opening or closed condition; Gauge tap 130 is connected on the on-off circuit 24 of heating and ventilating equipment 20 for subsequent use, switch control module 120 according to the power rating of main heating and ventilating equipment 10 switching by controlling this gauge tap 130 to control the unlatching of heating and ventilating equipment 20 for subsequent use or to close.

The linkage control circuit 100 of above-mentioned heating and ventilating equipment detects the compressor power electric current of heating and ventilating equipment 20 for subsequent use to judge the open and-shut mode of heating and ventilating equipment 20 for subsequent use, and according to the operate power state of main heating and ventilating equipment 10 to control the unlatching of heating and ventilating equipment 20 for subsequent use or to close, realize and in the time that main heating and ventilating equipment 10 can meet performance requirement, closed heating and ventilating equipment 20 for subsequent use to save energy consumption, can open heating and ventilating equipment 20 for subsequent use in main heating and ventilating equipment 10 faults or while can not meet performance requirement and close symbol related request to ensure HVAC environment, the intelligent power saving of having realized the heating and ventilating equipment for subsequent use 20 that energy consumption is larger uses, and the environmental protection that has realized the equipment energy rationally utilizes, optimization configuration device resource, reduce the waste of heating and ventilating equipment resource.

The linkage control circuit 100 of heating and ventilating equipment can be arranged in main heating and ventilating equipment 10, or be arranged in heating and ventilating equipment 20 for subsequent use, or scattering device (embodiment as shown in Figure 1) in main heating and ventilating equipment 10 and heating and ventilating equipment for subsequent use 20, or equipment independently.In the present embodiment, detection information is information of voltage.

In a preferred embodiment, with reference to figure 2, gauge tap 130 comprises coil and normally opened contact for relay K 1.In other embodiments, gauge tap 130 can be travel switch, can be even triode, photoelectrical coupler or MOS(Metal Oxide Semiconductor, metal-oxide semiconductor (MOS)) the controllability switching device such as pipe.

The input of switch control module 120 is connected with the output of current detection module 110, and the output of switch control module 120 is connected with one end of the coil of relay K 1, and the other end of relay K 1 is connected with one power supply+12V.The normally opened contact of relay K 1 is connected to the two ends of the switch in the on-off circuit 24 of heating and ventilating equipment 20 for subsequent use, and switch control module 120 receives and according to the closed and disconnected of the normally opened contact of the information of detection control relay K1.

The on-off circuit 24 of heating and ventilating equipment 20 for subsequent use is specifically for controlling press button and the circuit thereof of heating and ventilating equipment 20 for subsequent use, it is for controlling the unlatching of heating and ventilating equipment 20 for subsequent use or closing, and at this, gauge tap 130 is connected with the on-off circuit 24 of heating and ventilating equipment 20 for subsequent use, actual is the press button parallel connection with on-off circuit 24 by the switch sections of gauge tap 130, utilizes gauge tap 130 to simulate and realize the unlatching of press button control heating and ventilating equipment 20 for subsequent use or the function of closing.Obtain the duty of the heating and ventilating equipment for subsequent use 20 of opening by switch control module 120, receive and according to detecting information control relay K1 closed and disconnected to control the unlatching of heating and ventilating equipment 20 for subsequent use or to close, realized the heating and ventilating equipment for subsequent use 20 of controlling opening when main heating and ventilating equipment 10 can meet performance requirement and operate in the superfluous state of power and closed to save energy consumption; If main heating and ventilating equipment 10 faults or while can not meet performance requirement, control the heating and ventilating equipment for subsequent use 20 of the closed condition of respective numbers and open to ensure that HVAC environment closes symbol related request, the intelligence, the energy-saving and environmental protection that have realized heating and ventilating equipment rationally utilize, optimization configuration device resource, has reduced the waste of heating and ventilating equipment 30 resources.

In a preferred embodiment, switch control module 120 comprises control chip 122 and relay drive circuit 124, the input of control chip 122 is connected with the output of current detection module 110, the output of control chip 122 is connected with the input of relay drive circuit 124, and the output of the drive circuit 124 of relay is connected with the coil of relay K 1.

Control chip 122 can be arranged at main heating and ventilating equipment 10, heating and ventilating equipment for subsequent use 20 or arrange separately, in present embodiment, control chip 122 be single-chip microcomputer.In other embodiments, control chip 122 can be DSP(Digital Signal Processor, digital signal processor), ARM(Advanced RISCMachines) etc. microprocessor.

In a preferred embodiment, with reference to figure 3, control chip 122 comprises judgment means 1221, and judgment means 1221 judges that according to detection information heating and ventilating equipment 20 for subsequent use is in opening or closed condition.In the time that detection information is zero, think that heating and ventilating equipment 20 for subsequent use is closed condition; In the time that detection information is greater than zero, think that heating and ventilating equipment 20 for subsequent use is opening.In like manner, in the time that heating and ventilating equipment 20 for subsequent use opens or cuts out, when being greater than for zero (i.e. detection information is greater than zero), the electric current of compressor power line 22 thinks that heating and ventilating equipment 20 for subsequent use opens successfully; When the electric current of compressor power line 22 is that zero (i.e. detection information is zero) thinks that heating and ventilating equipment 20 for subsequent use cuts out successfully.

In present embodiment, the driving chip that relay drive circuit 124 is.In other embodiments, relay drive circuit 124 can be also mainly taking triode or metal-oxide-semiconductor as driving element, coordinate the energy dissipation device relay drive circuit 124 of (as energy discharges diode), specifically the base stage of triode or the grid of metal-oxide-semiconductor are as the input of drive circuit, the colelctor electrode of triode or the drain electrode of metal-oxide-semiconductor be as the output of drive circuit, the emitter stage of triode or the source ground of metal-oxide-semiconductor.

In the present embodiment, with reference to figure 2, control chip 122(single-chip microcomputer) the 15th pin is DC voltage detection port, can detect the DC voltage value of 0V to 5V, is used for detecting the detection information that the output 112 of current detection module 110 is exported; Key-press circuit for switch (being said switching circuit 24) control chip 122 the 16th pin that the two ends of the normally opened contact of relay K 1 are connected to heating and ventilating equipment 20 for subsequent use is common input/output port, can export low and high level, when control chip 122 the 16th pin output high level, the coil electricity of relay K 1, normally-closed contact closure; When control chip 122 the 16th pin output low level, the coil blackout of relay K 1, normally opened contact disconnects.Therefore in the time that needs are opened or closed heating and ventilating equipment 20 for subsequent use, Single-chip Controlling relay K 1 is closed after closed 2 seconds, analog manual operation's switch key.

In a preferred embodiment, with reference to figure 4, current detection module 110 comprises Current Transmit 1, commutation diode D16, the first divider resistance R19, the second divider resistance R20, clamp diode D15, current-limiting resistance R21, the first filter capacitor E6 and the second filter capacitor C11.

Electric current on Current Transmit 1 induced compression electromechanical source line 22, the anodic bonding of the first end of Current Transmit 1 and commutation diode D16, the second end ground connection; The negative electrode of commutation diode D16 is connected with the first end of the first divider resistance R19, the second end of the first divider resistance R19 passes through respectively the first filter capacitor E6 and the second divider resistance R20 ground connection the anodic bonding with clamp diode D15, and the negative electrode of clamp diode D15 is connected with a dc source VCC; The first end of current-limiting resistance R21 is connected with the second end of the first divider resistance R19, and the second end of current-limiting resistance R21 is as the output 112 of current detection module 110, also by the second filter capacitor C11 ground connection.

In the circuit of current detection module 110, Current Transmit 1 senses the alternating current on the compressor power line 22 of heating and ventilating equipment 20 for subsequent use in the coil circuit of Current Transmit 1, by passing through the first filter capacitor E6 filtering, the first divider resistance R19 and the second divider resistance R20 dividing potential drop after commutation diode D16 halfwave rectifier, obtain DC voltage, then by exporting after current-limiting resistance R21 current limliting, clamp diode D15 clamper, the second filter capacitor C11 filtering radio-frequency component.In the present embodiment, the first filter capacitor E6 is electrochemical capacitor, and the second filter capacitor C11 is ceramic disc capacitor.

And in actual conditions, current detection module 110 is because inner device has the cause of energy-storage function, the electric current 112 of its output may not can be zero.For example, if the alternating current of compressor power line 22 is more than or equal to 3 amperes, the output 112 of current detection module 110 is exported DC induction and is pressed and be about 0.34V and think that heating and ventilating equipment 20 for subsequent use is open states; If the alternating current of compressor power line 22 is less than or equal to 2 amperes, the output 112 of stream detection module 110 is exported DC induction pressure and is about 0.18V, thinks that heating and ventilating equipment 20 for subsequent use is off-modes.

The linkage control circuit 100 of above-mentioned heating and ventilating equipment is responded to the compressor power electric current output detections information of heating and ventilating equipment 20 for subsequent use by current detection module 110, control chip 122 judges the open and-shut mode of heating and ventilating equipment 20 for subsequent use with detection information, and be that underpower or power headroom are excessive according to the operate power state of main heating and ventilating equipment 10, control the unlatching of heating and ventilating equipment 20 for subsequent use or close with relay K 1, realize and in the time that main heating and ventilating equipment 10 can meet performance requirement, closed heating and ventilating equipment 20 for subsequent use to save energy consumption, can open heating and ventilating equipment 20 for subsequent use in main heating and ventilating equipment 10 faults or while can not meet performance requirement and close symbol related request to ensure HVAC environment, the intelligent power saving of having realized the heating and ventilating equipment for subsequent use 20 that energy consumption is larger uses, and the environmental protection that has realized the equipment energy rationally utilizes, optimization configuration device resource, reduce the waste of heating and ventilating equipment resource.

In addition, a kind of coordinated control system of heating and ventilating equipment is also provided, it comprises at least two heating and ventilating equipments, described at least two heating and ventilating equipments comprise main heating and ventilating equipment 10 and heating and ventilating equipment for subsequent use 20, also comprise the linkage control circuit 100 of above-mentioned heating and ventilating equipment, structure and the principle of work and power thereof of the linkage control circuit 100 of heating and ventilating equipment are described above, repeat no more here.

The coordinated control system of above-mentioned heating and ventilating equipment detects the compressor power electric current of heating and ventilating equipment 20 for subsequent use to judge the open and-shut mode of heating and ventilating equipment 20 for subsequent use, and according to the operate power state of main heating and ventilating equipment 10 to control the unlatching of heating and ventilating equipment 20 for subsequent use or to close, realize and in the time that main heating and ventilating equipment 10 can meet performance requirement, closed heating and ventilating equipment 20 for subsequent use to save energy consumption, can open heating and ventilating equipment 20 for subsequent use in main heating and ventilating equipment 10 faults or while can not meet performance requirement and close symbol related request to ensure HVAC environment, the intelligent power saving of having realized the heating and ventilating equipment for subsequent use 20 that energy consumption is larger uses, and the environmental protection that has realized the equipment energy rationally utilizes, optimization configuration device resource, reduce the waste of heating and ventilating equipment resource.

In addition, another heating and ventilating equipment linkage control circuit 200 is also provided, as shown in Figure 5, it is the module frame chart of the heating and ventilating equipment linkage control circuit 200 in an embodiment, heating and ventilating equipment linkage control circuit 200 is connected between at least two heating and ventilating equipments 30, in order to control the unlatching of heating and ventilating equipment 30 or to close, heating and ventilating equipment linkage control circuit 200 comprises current detection module 210 and switch control module 220.

Current detection module 210 is connected with the compressor power line 32 of heating and ventilating equipment 30, in order to detect electric current the output detections information of compressor power line 32; Switch control module 220 is electrically connected with current detection module 210 and heating and ventilating equipment 30, in order to receive the detection information that described current detection module 210 exports and to judge that according to detection information heating and ventilating equipment 30 is in opening or closed condition, and switch control module 220 is according to the unlatching of the power rating control heating and ventilating equipment 30 of the heating and ventilating equipment 30 of opening or close.

Above-mentioned heating and ventilating equipment linkage control circuit 200 detects the compressor power electric current of all heating and ventilating equipments 30 to judge the open and-shut mode of detected heating and ventilating equipment 30, and, realize the heating and ventilating equipment 30 of controlling the opening of respective numbers in the time that the heating and ventilating equipment 30 of opening can meet performance requirement and operate in the superfluous state of power and closed to save energy consumption to control the unlatching of corresponding heating and ventilating equipment 30 or to close according to the operate power state of the heating and ventilating equipment 30 of opening; If the heating and ventilating equipment of opening 30 faults or while can not meet performance requirement, control the heating and ventilating equipment 30 of the closed condition of respective numbers and open to ensure that HVAC environment closes symbol related request, the intelligence, the energy-saving and environmental protection that have realized heating and ventilating equipment 30 rationally utilize, optimization configuration device resource, has reduced the waste of heating and ventilating equipment 30 resources.

Heating and ventilating equipment linkage control circuit 200 can be arranged in one or more heating and ventilating equipments 30, or scattering device in multiple heating and ventilating equipments 30 to be combined into complete linkage control circuit 200, or equipment (as shown in Fig. 5 embodiment) independently.In the present embodiment, detection information is information of voltage.

In a preferred embodiment, in conjunction with Fig. 5,6,7, switch control module 220 comprises control module 222 and gauge tap 224, the input of control module 222 is connected with the output 212 of current detection module 210, gauge tap 224 is connected on the on-off circuit 34 of heating and ventilating equipment 30, and control module 222 receives and according to detecting information control gauge tap 224 closed and disconnecteds to control the unlatching of heating and ventilating equipment 30 or to close.

So, switch control module 220 obtains the duty of the heating and ventilating equipment 30 of opening by control module 222, receive and close to save energy consumption according to detecting information control gauge tap 224 closed and disconnecteds to control the unlatching of heating and ventilating equipment 30 or to close, realized the heating and ventilating equipment 30 of controlling the opening of respective numbers in the time that the heating and ventilating equipment 30 of opening can meet performance requirement and operate in the superfluous state of power; If the heating and ventilating equipment of opening 30 faults or while can not meet performance requirement, control the heating and ventilating equipment 30 of the closed condition of respective numbers and open to ensure that HVAC environment closes symbol related request, the intelligence, the energy-saving and environmental protection that have realized heating and ventilating equipment 30 rationally utilize, optimization configuration device resource, has reduced the waste of heating and ventilating equipment 30 resources.

In a preferred embodiment, with reference to figure 6,7, control module 222 comprises control chip 2222 and drive circuit 2224, the input of control chip 2222 is connected with the output 112 of current detection module 210, the output of control chip 2222 is connected with the input of drive circuit 2224, and the output of drive circuit 2224 is connected with gauge tap 224 drive the closed of gauge tap 224 or disconnect.

In embodiment more specifically, gauge tap 224 is relay K 1, and relay K 1 comprises coil and normally opened contact.In other embodiments, gauge tap 224 can be travel switch, can be even the controllability switching devices such as triode, photoelectrical coupler or metal-oxide-semiconductor.

So, the input of control module 222 is connected with the output of current detection module 210, and the output of control module 222 is connected with one end of the coil of relay K 1, and the other end of relay K 1 is connected with one power supply+12V.The normally opened contact of relay K 1 is connected to the two ends of the switch in the on-off circuit 34 of heating and ventilating equipment 30, and control module 222 receives and according to the closed and disconnected of the normally opened contact of the information of detection control relay K1.The on-off circuit 34 of heating and ventilating equipment 30 is specifically for controlling press button and the circuit thereof of heating and ventilating equipment 30, it is for controlling the unlatching of heating and ventilating equipment 30 or closing, and at this, gauge tap 224 is connected with the switch of heating and ventilating equipment 30, actual is the press button parallel connection with on-off circuit 24 by the switch sections of gauge tap 224, utilizes gauge tap 224 to simulate and realize the unlatching of press button control heating and ventilating equipment 30 or the function of closing.

In embodiment more specifically, control module 222 comprises control chip 2222 and for driving the drive circuit 2224 of above-mentioned relay work, the input of control chip 2222 is connected with the output 112 of current detection module 210, the output of control chip 2222 is connected with the input of drive circuit 2224, and the output of drive circuit 2224 is connected with the coil of relay K 1.

Control chip 2222 can be to be arranged in heating and ventilating equipment 30, or separately (as shown in Fig. 4 embodiment) is set, and in present embodiment, control chip 2222 is single-chip microcomputer.In other embodiments, control chip 2222 can be the microprocessor such as DSP, ARM.

In a preferred embodiment, with reference to figure 7, control chip 2222 comprises judgment means 300, and judgment means 300 judges that according to detection information detected heating and ventilating equipment 30 is in opening or closed condition.In the time that detection information is zero, think that this heating and ventilating equipment 30 is closed condition; In the time that detection information is greater than zero, think that this heating and ventilating equipment 30 is opening.Meanwhile, in the time that heating and ventilating equipment 30 opens or cuts out, when being greater than zero, the electric current of compressor power line 32 thinks that heating and ventilating equipment 30 for subsequent use opens successfully; When being zero, the electric current of compressor power line 32 thinks that heating and ventilating equipment 30 for subsequent use cuts out successfully.

Drive circuit is that model is the driving chip of ULN2003A.In other embodiments, drive circuit 2224 can be also mainly taking triode or metal-oxide-semiconductor as driving element, coordinate the energy dissipation device drive circuit 2224 of (as energy discharges diode), specifically the base stage of triode or the grid of metal-oxide-semiconductor are as the input of drive circuit 2224, the colelctor electrode of triode or the drain electrode of metal-oxide-semiconductor be as the output of drive circuit 2224, the emitter stage of triode or the source ground of metal-oxide-semiconductor.

In the present embodiment, control chip 2222(single-chip microcomputer) the 15th pin be DC voltage detection port, can detect the DC voltage value of 0V to 5V, be used for detecting the detection information that the output 212 of current detection module 210 is exported; The two ends of relay K 1 so-called normally opened contact are connected to the key-press circuit for switch (being said switching circuit 34) of heating and ventilating equipment 30, control chip 2222 the 16th pin is common input/output port, can export low and high level, when control chip 2222 the 16th pin output high level, the coil electricity of relay K 1, normally-closed contact closure; When control chip 2222 the 16th pin output low level, the coil blackout of relay K 1, normally opened contact disconnects.Therefore in the time that needs are opened or closed heating and ventilating equipment 30, Single-chip Controlling relay K 1 is closed after closed 2 seconds, analog manual operation's switch key.

In a preferred embodiment, with reference to figure 8, current detection module 210 comprises Current Transmit 1, commutation diode D16, the first divider resistance R19, the second divider resistance R20, clamp diode D15, current-limiting resistance R21, the first filter capacitor E6 and the second filter capacitor C11.

Electric current on Current Transmit 1 induced compression electromechanical source 32, the anodic bonding of the first end of Current Transmit 1 and commutation diode D16, the second end ground connection, the negative electrode of commutation diode D16 is connected with the first end of the first divider resistance R19, the second end of the first divider resistance R19 is respectively by the first filter capacitor E6 and the second divider resistance R20 ground connection, and with the anodic bonding of clamp diode D15, the negative electrode of clamp diode D15 is connected with a dc source, the first end of current-limiting resistance R21 is connected with the second end of the first divider resistance R19, the second end of current-limiting resistance R21 is as the output 212 of current detection module 210, and by the second filter capacitor C11 ground connection.

Alternating current on the compressor power line 32 of the heating and ventilating equipment 30 that in the circuit of current detection module 210, Current Transmit 1 detects needs senses in the coil circuit of Current Transmit 1, by passing through the first filter capacitor E6 filtering, the first divider resistance R19 and the second divider resistance R20 dividing potential drop after commutation diode D16 halfwave rectifier, obtain DC voltage, then by exporting after current-limiting resistance R21 current limliting, clamp diode D15 clamper, the second filter capacitor C11 filtering radio-frequency component.In the present embodiment, the first filter capacitor E6 is electrochemical capacitor, and the second filter capacitor C11 is ceramic disc capacitor.

And in actual conditions, current detection module 210 is because inner device has the cause of energy-storage function, the electric current of its output may not can be zero.For example, if the alternating current of compressor power line 32 is more than or equal to 3 amperes, the output 212 of current detection module 210 is exported DC induction and is pressed and be about 0.34V and think that detected heating and ventilating equipment 30 is open states; If the alternating current of compressor power line 32 is less than or equal to 2 amperes, the output 112 of stream detection module 210 is exported DC induction pressure and is about 0.18V, thinks that detected heating and ventilating equipment 30 is off-modes.

Above-mentioned heating and ventilating equipment linkage control circuit 200 is responded to the compressor power electric current output detections information of all heating and ventilating equipments 30 by current detection module 210, control chip 2222 judges the open and-shut mode of detected heating and ventilating equipment 30 with detection information, and be underpower or power headroom surplus according to the operate power state of the heating and ventilating equipment 30 of opening, control the unlatching of heating and ventilating equipment 3020 for subsequent use or close with relay K 1, realize in the time that the heating and ventilating equipment 30 of opening can meet performance requirement power headroom surplus and closed and open the heating and ventilating equipments 30 of crossing to save energy consumption more, the heating and ventilating equipment 30 that can open respective numbers in main heating and ventilating equipment 3010 faults or while can not meet performance requirement closes symbol related request to ensure HVAC environment, realize the intelligence of heating and ventilating equipment 30, energy-conservation, environmental protection rationally utilizes, optimization configuration device resource, reduce the waste of heating and ventilating equipment 30 resources.

In addition, a kind of heating and ventilating equipment coordinated control system is also provided, and it comprises at least two heating and ventilating equipments 30, also comprises above-mentioned heating and ventilating equipment linkage control circuit 200, structure and the principle of work and power thereof of heating and ventilating equipment linkage control circuit 200 are described above, repeat no more here.

Above-mentioned heating and ventilating equipment coordinated control system detects the compressor power electric current of all heating and ventilating equipments 30 to judge the open and-shut mode of detected heating and ventilating equipment 30 by current detection module 210, and, realize the heating and ventilating equipment 30 of controlling the opening of respective numbers in the time that the heating and ventilating equipment 30 of opening can meet performance requirement and operate in the superfluous state of power and closed to save energy consumption to control the unlatching of corresponding heating and ventilating equipment 30 or to close according to the operate power state of the heating and ventilating equipment 30 of opening; If the heating and ventilating equipment of opening 30 faults or while can not meet performance requirement, control the heating and ventilating equipment 30 of the closed condition of respective numbers and open to ensure that HVAC environment closes symbol related request, the intelligence, the energy-saving and environmental protection that have realized heating and ventilating equipment 30 rationally utilize, optimization configuration device resource, has reduced the waste of heating and ventilating equipment 30 resources.

In conjunction with Fig. 1,2,3,4 and 9, for a kind of control method of coordinated control system of the heating and ventilating equipment based on above-mentioned, the inter-linked controlling method of this heating and ventilating equipment is arranged in the control module 120 of linkage control circuit 100 of heating and ventilating equipment, be used for controlling heating and ventilating equipment 20 for subsequent use and work, the inter-linked controlling method of heating and ventilating equipment comprises the following steps:

Step S110, detects electric current the output detections information of the compressor power line 22 of described heating and ventilating equipment for subsequent use 20 by described current detection module 110.Particularly, the current detection module 110 of the linkage control circuit 100 by heating and ventilating equipment detects electric current the output detections information of the compressor power line 22 of heating and ventilating equipment 20 for subsequent use.Structure and the principle of work and power thereof of current detection module 110 are described above, repeat no more here.

Step S120, judges that according to described detection information described heating and ventilating equipment for subsequent use 20 is opening or closed condition.Particularly, the switch control module 120 of the interlock control electric current 100 of heating and ventilating equipment receives these detection information, the judgment means 1221 of switch control module 120 according to the size of this detection information to judge that detected heating and ventilating equipment for subsequent use 20 is in opening or in off position.When being greater than for zero (i.e. detection information is greater than zero), the electric current of compressor power line 22 thinks that heating and ventilating equipment 20 for subsequent use opens successfully; When the electric current of compressor power line 22 is that zero (i.e. detection information is zero) thinks that heating and ventilating equipment 20 for subsequent use cuts out successfully.

Step S130, judges that whether described main heating and ventilating equipment 10 power are enough.Particularly, obtain the power rating of main heating and ventilating equipment 10 by switch control module 120.If main heating and ventilating equipment 10 power are enough and heating and ventilating equipment 20 for subsequent use in opening, perform step S140, control the switching of described gauge tap 130 to close described heating and ventilating equipment for subsequent use 20; If heating and ventilating equipment 20 for subsequent use finishes in off position.

If main heating and ventilating equipment 10 underpowers and heating and ventilating equipment for subsequent use 20 perform step S150 in off position, control the switching of described gauge tap 130 to open described heating and ventilating equipment for subsequent use 20; If main heating and ventilating equipment 10 underpowers and heating and ventilating equipment for subsequent use 20 are in opening, if also have other controlled main heating and ventilating equipment or heating and ventilating equipments for subsequent use 20, control these other main heating and ventilating equipment 10 or heating and ventilating equipment for subsequent use 20 and open, to ensure that HVAC environment closes symbol related request.

The inter-linked controlling method of above-mentioned heating and ventilating equipment by the compressor power electric current that utilizes current detection module 110 and detect heating and ventilating equipment 20 for subsequent use to judge the open and-shut mode of heating and ventilating equipment 20 for subsequent use, and according to the operate power state of main heating and ventilating equipment 10 to control the unlatching of heating and ventilating equipment 20 for subsequent use or to close, realize and in the time that main heating and ventilating equipment 10 can meet performance requirement, closed heating and ventilating equipment 20 for subsequent use to save energy consumption, can open heating and ventilating equipment 20 for subsequent use in main heating and ventilating equipment 10 faults or while can not meet performance requirement and close symbol related request to ensure HVAC environment, the intelligent power saving of having realized the heating and ventilating equipment for subsequent use 20 that energy consumption is larger uses, and the environmental protection that has realized the equipment energy rationally utilizes, optimization configuration device resource, reduce the waste of heating and ventilating equipment resource.

Particularly, controlling gauge tap 130 by switch control module 120 opens and closes to control heating and ventilating equipment 20 for subsequent use and opens or close, the more specific embodiment of current detection module 110, switch control module 120 and gauge tap 130 is described as above about described in Fig. 1,2,3 and 4 related embodiment, repeats no more here.

In the present embodiment, when execution step S120, when judgment means 1221 judges the open and-shut mode of heating and ventilating equipment 20 for subsequent use according to detection information, in the time that described detection information is zero, think that this heating and ventilating equipment 20 for subsequent use is closed condition; In the time that detection information is greater than zero, think that heating and ventilating equipment 20 for subsequent use is opening.

In more detailed embodiment, as shown in figure 10, step S140 comprises step S210, step S220 and step S230, specific as follows:

Step S210, controls the closed N of described gauge tap 130 second.Particularly, switch control module 120 is by controlling gauge tap 130(specifically control relay K1) closed N disconnects after second, in fact this step is that simulated operation personnel manually touch and touch the button switch to control closing of heating and ventilating equipment 20 for subsequent use, and N is 2,3,4 or 5.

Step S220, judges whether the detection information that described current detection module 110 detects output is zero, and if so, described heating and ventilating equipment for subsequent use 20 cuts out successfully.Particularly, after gauge tap 130 disconnects again after time delay M second, electric current output detections information (information of voltage) that current detection module 110 detects compressor power line 22 arrive switch control module 120, the judgment means 1221 of switch control module 120 judges according to this information of voltage whether heating and ventilating equipment 20 for subsequent use is closed successfully, finish if close successfully, successfully perform step S230 if do not close.

The electric current reason that after above-mentioned gauge tap 130 disconnects, time delay M detects compressor power line 22 again after second is again that heating and ventilating equipment opening or in M time second of closing process, the electric current of its compressor power line 22 is in labile state, now detect and can affect the accuracy detecting, so improve through the electric current that detects again compressor power line 22 after M second the accuracy detecting, the systematic function of guarantee stable.Be understandable that, the size of M is set according to the unlatching of heating and ventilating equipment or closing process required time, for example, be 5 seconds, 10 seconds equal times.

Step S230, if heating and ventilating equipment for subsequent use 20 do not close successfully, repeated execution of steps S210, the step of the closed N of the described gauge tap 130 of described control second until described heating and ventilating equipment for subsequent use 20 be closed.Particularly, can be arranged on and close in unsuccessful situation, can repeated execution of steps S210 several times just exit this and close the program of heating and ventilating equipment 20 for subsequent use, these several times can make 10 times, 20 inferior number of times.

In more detailed embodiment, with reference to Figure 11, step S150 comprises step S240, step S250 and step S260, is specially:

Step S240, controls the closed N of described gauge tap 130 second.Particularly, switch control module 120 is by controlling gauge tap 130(specifically control relay K1) closed N disconnects after second, in fact this step is that simulated operation personnel manually touch and touch the button switch to control the unlatching of heating and ventilating equipment 20 for subsequent use, and N is 2,3,4 or 5.

Step S250, judges whether the detection information that described current detection module 110 is exported is greater than zero, and if so, described heating and ventilating equipment for subsequent use 20 is opened successfully.Particularly, after gauge tap 130 disconnects again after time delay M second, electric current output detections information (information of voltage) that current detection module 110 detects compressor power line 22 arrive switch control module 120, the judgment means 1221 of switch control module 120 judges according to this information of voltage whether heating and ventilating equipment 20 for subsequent use is unlocked successfully, finish if open successfully, successfully perform step S260 if do not open.

Step S260, if heating and ventilating equipment for subsequent use 20 do not open successfully, repeated execution of steps S240, the step of the closed N of the described gauge tap 130 of described control second until described heating and ventilating equipment for subsequent use 20 be unlocked.Particularly, can be arranged on and open in unsuccessful situation, can repeated execution of steps S240 several times just exit the program of this unlatching heating and ventilating equipment 20 for subsequent use, these several times can make 10 times, 20 inferior number of times.

The inter-linked controlling method of above-mentioned heating and ventilating equipment is responded to the compressor power electric current output detections information of heating and ventilating equipment 20 for subsequent use by current detection module 110, control chip 122 judges the open and-shut mode of heating and ventilating equipment 20 for subsequent use with detection information, and be that underpower or power headroom are excessive according to the operate power state of main heating and ventilating equipment 10, control the unlatching of heating and ventilating equipment 20 for subsequent use or close with relay K 1, realize and in the time that main heating and ventilating equipment 10 can meet performance requirement, closed heating and ventilating equipment 20 for subsequent use to save energy consumption, can open heating and ventilating equipment 20 for subsequent use in main heating and ventilating equipment 10 faults or while can not meet performance requirement and close symbol related request to ensure HVAC environment, the intelligent power saving of having realized the heating and ventilating equipment for subsequent use 20 that energy consumption is larger uses, and the environmental protection that has realized the equipment energy rationally utilizes, optimization configuration device resource, reduce the waste of heating and ventilating equipment resource.

In conjunction with Fig. 5,6,7,8 and 12, a kind of control method of the heating and ventilating equipment coordinated control system based on above-mentioned, this heating and ventilating equipment inter-linked controlling method for detection of and control heating and ventilating equipment 30 and work, this heating and ventilating equipment inter-linked controlling method is arranged in heating and ventilating equipment linkage control circuit 200 switch control modules 220, be used for controlling heating and ventilating equipment 30 and work, heating and ventilating equipment inter-linked controlling method comprises the following steps:

Step S310, detects electric current the output detections information of the compressor power line 32 of described heating and ventilating equipment 30 by described current detection module 210.Particularly, the current detection module 210 of the interlock control electric current 200 by heating and ventilating equipment detects electric current the output detections information of the compressor power line 32 of heating and ventilating equipment 30.Structure and the principle of work and power thereof of current detection module 210 are described above, repeat no more here.

Step S320, according to the detected described heating and ventilating equipment 30 of described detection information judgement is opening or closed condition.Particularly, the switch control module 220 of the interlock control electric current 200 of heating and ventilating equipment receives these detection information, the judgment means 300 of switch control module 220 according to the size of this detection information to judge that detected heating and ventilating equipment 30 is in opening or in off position.When being greater than for zero (i.e. detection information is greater than zero), the electric current of compressor power line 32 thinks that heating and ventilating equipment 30 for subsequent use opens successfully; When the electric current of compressor power line 32 is that zero (i.e. detection information is zero) thinks that heating and ventilating equipment 30 for subsequent use cuts out successfully.

Step S330, judges whether the heating and ventilating equipment of described opening operates in normal condition.Particularly, obtain the operating power state of the heating and ventilating equipment 30 of opening by switch control module 220.Whether normal operation state refers to heating and ventilating equipment 30 to heating and ventilating equipment operates in rated power state, and abnormal state refers to, and heating and ventilating equipment 30 breaks down, underpower can not meet performance need or the state such as power surplus excessive (wasting energy).

Step 340, if the heating and ventilating equipment of described opening 30 operates in underpower state, controls the described heating and ventilating equipment 30 of the closed condition of respective numbers and opens.Particularly, the switching of controlling described gauge tap 224 by switch control module 220 is closed symbol related request to open heating and ventilating equipment 30 to ensure HVAC environment.

Step 350, if the heating and ventilating equipment of described opening 30 operates in the superfluous state of power, controls the described heating and ventilating equipment 30 of the opening of respective numbers and closes.Particularly, the switching of controlling described gauge tap 224 by switch control module 220 is to close heating and ventilating equipment 30 to reduce energy consumption.

Above-mentioned heating and ventilating equipment inter-linked controlling method detects the compressor power electric current of all heating and ventilating equipments 30 to judge the open and-shut mode of detected heating and ventilating equipment 30, and, realize the heating and ventilating equipment 30 of controlling the opening of respective numbers in the time that the heating and ventilating equipment 30 of opening can meet performance requirement and operate in the superfluous state of power and closed to save energy consumption to control the unlatching of corresponding heating and ventilating equipment 30 or to close according to the operate power state of the heating and ventilating equipment 30 of opening; If the heating and ventilating equipment of opening 30 faults or while can not meet performance requirement, control the heating and ventilating equipment 30 of the closed condition of respective numbers and open to ensure that HVAC environment closes symbol related request, the intelligence, the energy-saving and environmental protection that have realized heating and ventilating equipment 30 rationally utilize, optimization configuration device resource, has reduced the waste of heating and ventilating equipment 30 resources.

Particularly, heating and ventilating equipment inter-linked controlling method is controlled gauge tap 224 by switch control module 220 and is opened and closed to control heating and ventilating equipment 30 and open or close, the more specific embodiment of current detection module 210, switch control module 220 and gauge tap 224 is described as above about described in Fig. 5,6,7 and 8 related embodiment, repeats no more here.

In the present embodiment, when execution step S320, when judgment means 300 judges the open and-shut mode of detected heating and ventilating equipment 30 according to detection information, in the time that described detection information is zero, think that this heating and ventilating equipment 30 is for closed condition; In the time that detection information is greater than zero, think that this heating and ventilating equipment 30 is opening.

In more detailed embodiment, with reference to Figure 10, step S340 comprises step S210, step S220 and step S230, specific as follows:

Step S210, controls the closed N of described gauge tap 224 second.Particularly, switch control module 220 is by controlling gauge tap 224(specifically control relay K1) closed N disconnects after second, and in fact this step is that simulated operation personnel manually touch the switch that touches the button to control closing of heating and ventilating equipment 30, and N is 2,3,4 or 5.

Step S220, detects the electric current of compressor power line 32 of described heating and ventilating equipment 30 output detections information to judge whether described heating and ventilating equipment 30 closes by described current detection module 210.Particularly, after gauge tap 224 disconnects again after time delay M second, electric current output detections information (information of voltage) that current detection module 210 detects compressor power line 32 arrive switch control module 220, the judgment means 300 of switch control module 220 judges according to this information of voltage whether heating and ventilating equipment 30 is closed successfully, finish if close successfully, successfully perform step S230 if do not close.When being greater than for zero (i.e. detection information is greater than zero), the electric current of compressor power line 32 thinks that heating and ventilating equipment 30 for subsequent use opens successfully; When the electric current of compressor power line 32 is that zero (i.e. detection information is zero) thinks that heating and ventilating equipment 30 for subsequent use cuts out successfully.

The electric current reason that after above-mentioned gauge tap 224 disconnects, time delay M detects compressor power line 32 again after second is again that heating and ventilating equipment opening or in M time second of closing process, the electric current of its compressor power line 32 is in labile state, now detect and can affect the accuracy detecting, so improve through the electric current that detects again compressor power line 32 after M second the accuracy detecting, the systematic function of guarantee stable.Be understandable that, the size of M is set according to the unlatching of heating and ventilating equipment or closing process required time, for example, be 5 seconds, 10 seconds equal times.

Step S230, if heating and ventilating equipment 30 do not close successfully, repeated execution of steps S210, the step of the closed N of the described gauge tap 224 of described control second until described heating and ventilating equipment 30 be closed.Particularly, can be arranged on and close in unsuccessful situation, can repeated execution of steps S210 several times just exit this and close the program of heating and ventilating equipment 30, these several times can make 10 times, 20 inferior number of times.

In more detailed embodiment, with reference to Figure 11, step S350 comprises step S240, step S250 and step S260, is specially:

Step S240, controls the closed N of described gauge tap 224 second.Particularly, switch control module 220 is by controlling gauge tap 224(specifically control relay K1) closed N disconnects after second, and in fact this step is that simulated operation personnel manually touch the switch that touches the button to control the unlatching of heating and ventilating equipment 30, and N is 2,3,4 or 5.

Step S250, detects the electric current of compressor power line 32 of described heating and ventilating equipment 30 output detections information to judge whether described heating and ventilating equipment 30 is opened by described current detection module 210.Particularly, after gauge tap 224 disconnects again after time delay M second, electric current output detections information (information of voltage) that current detection module 210 detects compressor power line 32 arrive switch control module 220, the judgment means 300 of switch control module 220 judges according to this information of voltage whether heating and ventilating equipment 30 is unlocked successfully, finish if open successfully, successfully perform step S260 if do not open.When being greater than for zero (i.e. detection information is greater than zero), the electric current of compressor power line 32 thinks that heating and ventilating equipment 30 for subsequent use opens successfully; When the electric current of compressor power line 32 is that zero (i.e. detection information is zero) thinks that heating and ventilating equipment 30 for subsequent use cuts out successfully.

Step S260, if heating and ventilating equipment 30 do not open successfully, repeated execution of steps S240, the step of the closed N of the described gauge tap 224 of described control second until described heating and ventilating equipment 30 be unlocked.Particularly, can be arranged on and open in unsuccessful situation, can repeated execution of steps S240 several times just exit the program of this unlatching heating and ventilating equipment 30, these several times can make 10 times, 20 inferior number of times.

Above-mentioned heating and ventilating equipment inter-linked controlling method detects the compressor power electric current of all heating and ventilating equipments 30 to judge the open and-shut mode of detected heating and ventilating equipment 30 by current detection module 210, and, realize the heating and ventilating equipment 30 of controlling the opening of respective numbers in the time that the heating and ventilating equipment 30 of opening can meet performance requirement and operate in the superfluous state of power and closed to save energy consumption to control the unlatching of corresponding heating and ventilating equipment 30 or to close according to the operate power state of the heating and ventilating equipment 30 of opening; If the heating and ventilating equipment of opening 30 faults or while can not meet performance requirement, control the heating and ventilating equipment 30 of the closed condition of respective numbers and open to ensure that HVAC environment closes symbol related request, the intelligence, the energy-saving and environmental protection that have realized heating and ventilating equipment 30 rationally utilize, optimization configuration device resource, has reduced the waste of heating and ventilating equipment 30 resources.

The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.

Claims

1. a linkage control circuit for heating and ventilating equipment, it is connected between main heating and ventilating equipment and heating and ventilating equipment for subsequent use, in order to control the unlatching of described heating and ventilating equipment for subsequent use or to close; It is characterized in that, described linkage control circuit comprises:

Gauge tap, this gauge tap is connected on the on-off circuit of described heating and ventilating equipment for subsequent use, described switch control module according to the power rating of described main heating and ventilating equipment the switching by controlling this gauge tap to control the unlatching of described heating and ventilating equipment for subsequent use or to close.

2. the linkage control circuit of heating and ventilating equipment as claimed in claim 1, it is characterized in that, described gauge tap is relay, the input of described switch control module is connected with the output of described current detection module, the output of described switch control module is connected with the coil of described relay, the normally opened contact of described relay is connected to the two ends of the switch of described heating and ventilating equipment for subsequent use, and described switch control module receives and according to the closed and disconnected of the normally opened contact of relay described in the control of described detection information.

3. the linkage control circuit of heating and ventilating equipment as claimed in claim 2, it is characterized in that, described switch control module comprises control chip and relay drive circuit, the input of described control chip is connected with the output of described current detection module, the output of described control chip is connected with the input of described relay drive circuit, and the output of the drive circuit of described relay is connected with the coil of described relay.

4. the linkage control circuit of heating and ventilating equipment as claimed in claim 3, is characterized in that, described control chip comprises:

Judgment means, judges that according to described detection information described heating and ventilating equipment for subsequent use is in opening or closed condition, wherein, in the time that described detection information is zero, described heating and ventilating equipment for subsequent use is closed condition, and in the time that described detection information is greater than zero, described heating and ventilating equipment for subsequent use is opening.

5. the linkage control circuit of the heating and ventilating equipment as described in claim 1 to 4 any one, it is characterized in that, described current detection module comprises current transformer, commutation diode, the first divider resistance, the second divider resistance, clamp diode, current-limiting resistance, the first filter capacitor and the second filter capacitor, wherein

Described current transformer is responded to the electric current on described compressor power line, the first end of described current transformer and the anodic bonding of described commutation diode, the second end ground connection;

The negative electrode of described commutation diode is connected with the first end of described the first divider resistance, the second end of described the first divider resistance passes through respectively described the first filter capacitor and the second divider resistance ground connection the anodic bonding with described clamp diode, and the negative electrode of described clamp diode is connected with a dc source;

The first end of described current-limiting resistance is connected with the second end of described the first divider resistance, and the second end of described current-limiting resistance is as the output of described current detection module, also by described the second filter capacitor ground connection.

6. the coordinated control system of a heating and ventilating equipment, comprise at least two heating and ventilating equipments, described at least two heating and ventilating equipments comprise main heating and ventilating equipment and heating and ventilating equipment for subsequent use, it is characterized in that, described coordinated control system also comprises the linkage control circuit of the heating and ventilating equipment as described in claim 1 to 5 any one.

7. a heating and ventilating equipment linkage control circuit, is connected between at least two heating and ventilating equipments, in order to control the unlatching of described heating and ventilating equipment or to close; It is characterized in that, described linkage control circuit comprises:

Switch control module, this switch control module is electrically connected with described current detection module and described heating and ventilating equipment, in order to receive the detection information of described current detection module output and according to described detection information judge described heating and ventilating equipment in opening or closed condition, and described switch control module is according to the unlatching of heating and ventilating equipment described in the power rating control of the described heating and ventilating equipment of opening or close.

8. heating and ventilating equipment linkage control circuit as claimed in claim 7, it is characterized in that, described switch control module comprises control module and gauge tap, the input of described control module is connected with the output of described current detection module, described gauge tap is connected on the on-off circuit of described heating and ventilating equipment, described control module receive and according to the closed and disconnected of gauge tap described in the control of described detection information to control the unlatching of described heating and ventilating equipment or to close.

9. heating and ventilating equipment linkage control circuit as claimed in claim 8, it is characterized in that, described control module comprises control chip and drive circuit, the input of described control chip is connected with the output of described current detection module, the output of described control chip is connected with the input of described drive circuit, and the output of described drive circuit is connected with described gauge tap drive the closed of described gauge tap or disconnect.

10. the linkage control circuit of heating and ventilating equipment as claimed in claim 9, is characterized in that, described control chip comprises:

Judgment means, judge that according to described detection information described heating and ventilating equipment is in opening or in opening or closed condition, wherein, in the time that described detection information is zero, described heating and ventilating equipment is closed condition, in the time that described detection information is greater than zero, described heating and ventilating equipment is opening.

11. heating and ventilating equipment linkage control circuits as described in claim 7 to 10 any one, it is characterized in that, described current detection module comprises current transformer, commutation diode, the first divider resistance, the second divider resistance, clamp diode, current-limiting resistance, the first filter capacitor and the second filter capacitor, wherein

12. 1 kinds of heating and ventilating equipment coordinated control systems, comprise at least two heating and ventilating equipments, it is characterized in that, described coordinated control system also comprises the linkage control circuit of the heating and ventilating equipment as described in claim 7 to 11 any one.

13. 1 kinds of control methods based on heating and ventilating equipment coordinated control system described in claim 6, is characterized in that, comprise the following steps:

14. control methods as claimed in claim 13, is characterized in that, describedly judge described heating and ventilating equipment for subsequent use in opening or the step of closed condition is specially according to described detection information:

In the time that described detection information is zero, described heating and ventilating equipment for subsequent use is closed condition;

In the time that described detection information is greater than zero, described heating and ventilating equipment for subsequent use is opening.

15. control methods as described in claim 13 or 14, is characterized in that, the step that the described gauge tap of described control opens and closes to cut out described heating and ventilating equipment for subsequent use is specially:

Control the closed N of described gauge tap second;

Judge that described current detection module detects whether the detection information of exporting is zero, if so, described heating and ventilating equipment for subsequent use cuts out successfully;

If not, the step that repeats the closed N of the described gauge tap of described control second until described heating and ventilating equipment for subsequent use be closed;

The switching of the described gauge tap of described control is specially with the step of opening described heating and ventilating equipment for subsequent use:

Control the closed N of described gauge tap second;

Whether the detection information that judges described current detection module output is greater than zero, and if so, described heating and ventilating equipment for subsequent use is opened successfully;

If not, the step that repeats the closed N of the described gauge tap of described control second until described heating and ventilating equipment for subsequent use be unlocked.

The control method of 16. 1 kinds of heating and ventilating equipment coordinated control systems based on described in claim 12, is characterized in that, comprises the following steps:

17. control methods as claimed in claim 16, is characterized in that, describedly judge that according to described detection information described heating and ventilating equipment is in opening or the step of closed condition is specially:

In the time that described detection information is zero, described heating and ventilating equipment is closed condition;

In the time that described detection information is greater than zero, described heating and ventilating equipment is opening.