CN111541220A - Drive control circuit, method and device and air conditioner - Google Patents
Drive control circuit, method and device and air conditioner Download PDFInfo
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- CN111541220A CN111541220A CN202010488814.XA CN202010488814A CN111541220A CN 111541220 A CN111541220 A CN 111541220A CN 202010488814 A CN202010488814 A CN 202010488814A CN 111541220 A CN111541220 A CN 111541220A
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- circuit
- driving
- drive
- control circuit
- controller
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/32—Responding to malfunctions or emergencies
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/88—Electrical aspects, e.g. circuits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/02—Details
- H02H3/05—Details with means for increasing reliability, e.g. redundancy arrangements
Abstract
The invention provides a drive control circuit, a method, a device and an air conditioner, wherein the drive control circuit comprises the following components: a drive circuit; a detection device configured to output an action signal according to the received operating condition parameter; the protection circuit is connected with the detection device at the input end, connected with the input end of the driving circuit at the output end and configured to receive the action signal and stop outputting the driving signal to the driving circuit; the input end of the first controller is connected with the output ends of the detection device and the protection circuit, the output end of the first controller is connected with the driving circuit, and the first controller is configured to receive the action signal and/or at least part of the driving signal and control the driving circuit to stop working. According to the technical scheme, the influence of unreliable connection of the protection circuit and each circuit on the reliability of the driving control circuit in operation is reduced.
Description
Technical Field
The invention relates to the technical field of drive control, in particular to a drive control circuit, a method, a device and an air conditioner.
Background
In the related art, the container protection scheme usually adopts a single electric control scheme to realize the container protection, taking the protection scheme of the pressure vessel as an example, in general, a pressure relief valve controlled by a driving circuit needs to be arranged on a pressure pipeline of the pressure vessel, and when the pressure is too high, the pressure relief valve operates to relieve line pressure, but the control of the pressure relief valve involves the operation of a circuit connected to the drive circuit, while the circuit connected to the driving circuit operates with the operation of electronic devices such as semiconductors and/or relays, because electronic devices such as semiconductors and/or relays belong to unreliable devices, the reliability of the existing container protection scheme is low, the reliability requirement at the present stage cannot be met, the pressure relief valve cannot accurately release pressure easily, and the reliability of the container in operation is low.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art or the related art.
To this end, a first aspect of the present invention is to provide a drive control circuit.
In a second aspect of the present invention, an air conditioner is provided.
A third aspect of the present invention is to provide a control method of a drive control circuit.
A fourth aspect of the present invention is to provide a control device that drives a control circuit.
A fifth aspect of the present invention is to provide an air conditioner.
In view of the above, according to a first aspect of the present invention, there is provided a drive control circuit, wherein the drive control circuit includes: a drive circuit; a detection device configured to output an action signal according to the received operating condition parameter; the protection circuit is connected with the detection device at the input end, connected with the input end of the driving circuit at the output end and configured to receive the action signal and stop outputting the driving signal to the driving circuit; the input end of the first controller is connected with the output ends of the detection device and the protection circuit, the output end of the first controller is connected with the driving circuit, and the first controller is configured to receive the action signal and/or at least part of the driving signal and control the driving circuit to stop working.
In the technical scheme of the invention, the driving circuit is connected with the protection circuit, the reliability is lower because the protection circuit adopts a semiconductor device, and the first controller is arranged in order to solve the problem of low reliability of the protection circuit in the operation process.
In addition, the first controller is respectively connected with the output ends of the detection device and the protection circuit so as to obtain the action signal and at least part of the driving signal, and in order to ensure the reliability of the connection of the first controller with the output ends of the detection device and the protection circuit, the connection relationship can be verified according to the action signal and at least part of the driving signal, so that the influence of the unreliable connection relationship on the reliability of the driving control circuit in operation is reduced, and the reliability of the container protection scheme in operation is improved. In addition, the driving control circuit in the above technical solution provided by the present invention may further have the following additional technical features:
in the above technical solution, the detection device is connected to the first controller through at least two data lines, and the first controller is configured to: comparing at least two action signals acquired through at least two data lines; and determining that the at least two action signals are inconsistent, and controlling the driving circuit to stop working.
In the technical scheme, when the line connection between the detection device and the first controller is abnormal, the obtained action signal is abnormal, the abnormal action signal or the control of the driving circuit is influenced, the detection device and the first controller are limited to be connected through at least two data lines, so that at least two action signals obtained through at least two data lines are compared, when the at least two action signals are detected to be inconsistent, the action signals are determined to have problems in the obtaining process, the driving circuit is controlled to stop working, and the influence of the obtained action signals on the control of the driving circuit is reduced.
In any of the above technical solutions, the output terminal of the protection circuit is connected to the first controller through at least two data lines, and the first controller is configured to: comparing at least two driving signals acquired through at least two data lines; and determining that the at least two driving signals are inconsistent, and controlling the driving circuit to stop working.
In the technical scheme, when the line connection between the output end of the protection circuit and the first controller is abnormal, the obtained driving signals are abnormal, the abnormal driving signals influence the control of the driving circuit, the output end of the protection circuit is limited to be connected with the first controller through at least two data lines, so that at least two driving signals obtained through the at least two data lines are compared, when the at least two driving signals are detected to be inconsistent, the driving signals are determined to have problems in the obtaining process, and the driving circuit is controlled to stop working, so that the influence of the obtained driving signals on the control of the driving circuit is reduced.
In any of the above technical solutions, the method further includes: and the second controller is connected with the detection device and the protection circuit, and is configured to receive the action signal and stop outputting the driving signal to the protection circuit.
In the technical scheme, in a normal situation, the protection circuit is used as a buffer, for example, a received signal is forwarded to the driving circuit, when the second controller receives an action signal, the second controller stops outputting the driving signal to the protection circuit in response to the action signal, and the driving circuit is controlled from the perspective of software.
In any of the above aspects, the first controller is further configured to: and determining that the driving circuit stops working, and outputting first warning information.
In the technical scheme, when the drive control circuit is determined to stop running, the first warning information is sent out, so that maintenance personnel can maintain the failed protection circuit in time, and further the running reliability of the drive control circuit is improved.
In any of the above aspects, the first controller is further configured to: and running the self-checking program, determining that the self-checking result indicated by the self-checking program does not meet the preset detection result, and controlling the driving circuit to stop working.
In the technical scheme, the first controller executes the self-checking program and compares the self-checking result indicated by the self-checking program with the preset detection result, so that the driving circuit is controlled to stop working when the self-checking result indicated by the self-checking program does not meet the preset detection result, the influence of the abnormality of the first controller on the reliability of the driving control circuit in operation is reduced, and the reliability of the container protection scheme in operation is improved.
In any of the above aspects, the first controller is further configured to: determining that a drive control circuit is powered on, and controlling the drive circuit to start and stop according to preset times; and determining that the actual starting and stopping times of the driving circuit are inconsistent with the preset times, and outputting second warning information.
In the technical scheme, when the drive control circuit is powered on, the drive circuit is controlled to start and stop according to the preset times, the actual start and stop times of the drive circuit are compared with the preset times, when the actual start and stop times of the drive circuit are inconsistent with the preset times, the first controller is determined to be unstable in control over the drive circuit, and second warning information is output, so that maintenance personnel can maintain the drive circuit in time, the influence of the control abnormality of the first controller on the drive circuit on the reliability of the drive control circuit is reduced, and the reliability of the container protection scheme during operation is further improved.
In any of the above solutions, the detection device includes a detection switch.
In any of the above technical solutions, the operating condition parameters include: one or more of temperature value, pressure value, humidity value, illumination intensity value and volume value.
In this embodiment, the operating condition parameters include, but are not limited to, one or more of a temperature value, a pressure value, a humidity value, a light intensity value, and a volume value, and further include common state parameters of the container, such as deformation of the container wall.
According to a second aspect of the present invention, the present invention provides an air conditioner, wherein the air conditioner includes a compressor and has the driving control circuit provided in any one of the first aspect, and therefore, the air conditioner provided in any one of the first aspect has all the advantages of the driving control circuit provided in any one of the first aspect, which are not listed here.
According to a third aspect of the present invention, there is provided a control method of a drive control circuit, the drive control circuit including a drive circuit; a detection device configured to output an action signal according to the received operating condition parameter; the protection circuit is connected with the detection device at the input end, connected with the input end of the driving circuit at the output end and configured to receive the action signal and stop outputting the driving signal to the driving circuit; the control method of the drive control circuit includes: and controlling the driving circuit to stop working after receiving the action signal and/or at least part of the driving signal.
In the technical scheme, the driving circuit can be understood as a driving part for realizing parameter adjustment in a driving container protection scheme, the detection device can be understood as a detected working condition parameter to determine whether the current working condition parameter is abnormal according to the received working condition parameter output action signal, when the current working condition parameter belongs to the abnormality, the action signal can be output and can be sensed by the protection circuit, under the normal condition, the protection circuit starts the protection function after receiving the action signal, such as stopping outputting the driving signal to the driving circuit, because the protection circuit adopts a semiconductor device, the reliability is lower in the operation process, in order to solve the problem of low reliability of the protection circuit, the driving circuit can be controlled when the protection circuit is in fault by controlling the driving circuit to stop working according to the received action signal and the driving signal, the influence of the unreliable protection circuit on the reliability of the driving control circuit in operation is reduced, and the reliability of the container protection scheme in operation is improved.
In addition, the drive circuit is controlled according to the action signal or at least part of the drive signal, so that the influence of the unreliable action signal or at least part of the drive signal on the reliability of the drive control circuit in operation is reduced, and the reliability of the container protection scheme in operation is improved.
In addition, the control method of the driving control circuit in the above technical solution provided by the present invention may further have the following additional technical features:
in the above technical solution, after the step of controlling the driving circuit to stop operating, the method further includes: and outputting the first warning information.
In the technical scheme, when the drive control circuit is determined to stop running, the first warning information is sent out, so that maintenance personnel can maintain the failed protection circuit in time, and further the running reliability of the drive control circuit is improved.
In any of the above technical solutions, the step of controlling the driving circuit to stop operating upon receiving the action signal specifically includes: comparing at least two action signals acquired through at least two data lines; and determining that the at least two action signals are inconsistent, and controlling the driving circuit to stop working.
In the technical scheme, at least two action signals acquired through at least two data lines are limited so as to compare the at least two action signals acquired through the at least two data lines, when the at least two action signals are detected to be inconsistent, the action signals are determined to have problems in the acquisition process, and the driving circuit is controlled to stop working so as to reduce the influence of the acquired action signals on the control of the driving circuit.
In any of the above technical solutions, the step of receiving at least part of the driving signal and controlling the driving circuit to stop operating specifically includes: comparing at least two driving signals acquired through at least two data lines; and determining that the at least two driving signals are inconsistent, and controlling the driving circuit to stop working.
In the technical scheme, at least two driving signals acquired through at least two data lines are limited so as to compare the at least two driving signals acquired through the at least two data lines, when the at least two driving signals are detected to be inconsistent, the driving signals are determined to have problems in the acquiring process, and the driving circuit is controlled to stop working so as to reduce the influence of the acquired driving signals on the control of the driving circuit.
In any of the above technical solutions, before the step of receiving the action signal and/or at least part of the driving signal and controlling the driving circuit to stop operating, the method further includes: and running the self-checking program, determining that the self-checking result indicated by the self-checking program does not meet the preset detection result, and controlling the driving circuit to stop working.
In the technical scheme, the self-checking program is executed, and the self-checking result indicated by the self-checking program is compared with the preset detection result, so that when the self-checking result indicated by the self-checking program does not meet the preset detection result, the driving circuit is controlled to stop working, the probability of abnormal operation of the driving control circuit is reduced, and the reliability of the operation of the container protection scheme is improved.
In any of the above technical solutions, before the step of receiving the action signal and/or at least part of the driving signal and controlling the driving circuit to stop operating, the method further includes: determining that a drive control circuit is powered on, and controlling the drive circuit to start and stop according to preset times; and determining that the actual starting and stopping times of the driving circuit are inconsistent with the preset times, and outputting second warning information.
In the technical scheme, in order to reduce the influence of unreliable control process of the driving circuit on the reliability of the driving control circuit, whether the driving circuit is controllable or not needs to be detected, specifically, when the driving control circuit is powered on, the driving circuit is controlled to be started and stopped according to the preset times, the actual starting and stopping times of the driving circuit are compared with the preset times, when the actual starting and stopping times of the driving circuit are inconsistent with the preset times, the driving circuit is determined to be unstable in control, second warning information is output, so that maintenance personnel can maintain the driving circuit in time, the influence of control abnormality of the driving circuit on the reliability of the driving control circuit is reduced, and the reliability of the container protection scheme during operation is further improved.
In any of the above technical solutions, the operating condition parameters include: one or more of temperature value, pressure value, humidity value, illumination intensity value and volume value.
In this embodiment, the operating condition parameters include, but are not limited to, one or more of a temperature value, a pressure value, a humidity value, a light intensity value, and a volume value, and further include common state parameters of the container, such as deformation of the container wall.
According to a fourth aspect of the present invention, there is provided a control device for driving a control circuit, comprising: a memory having a computer program stored thereon; and a controller which executes a computer program to realize the steps of the control method of the drive control circuit as described above.
In this embodiment, the control device of the driving control circuit includes a memory and a controller, where the memory stores a computer program thereon, and the controller executes the computer program to implement the steps of the control method of the driving control circuit as described above, and the control device of the driving control circuit according to the embodiment of the present invention has all the advantages of the control method of the driving control circuit according to any one of the third aspect, which are not listed here.
According to a fifth aspect of the present invention, there is provided an air conditioner comprising: a drive circuit; a detection device configured to output an action signal according to the received operating condition parameter; the protection circuit is connected with the detection device at the input end, connected with the input end of the driving circuit at the output end and configured to receive the action signal and stop outputting the driving signal to the driving circuit; in the control device of the drive control circuit, the input end of the control device of the drive control circuit is connected with the output ends of the detection device and the protection circuit, and the output end of the control device of the drive control circuit is connected with the drive circuit.
In this technical solution, the air conditioner includes a driving circuit, a detecting device, a protection circuit and the control device of the driving control circuit in the above technical solution, because the input end of the control device of the driving control circuit is connected with the output ends of the detecting device and the protection circuit, and the output end of the control device of the driving control circuit is connected with the driving circuit, the air conditioner has all the beneficial effects of the control device of the driving control circuit, which are not listed herein.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 shows a connection schematic of a drive control circuit according to one embodiment of the invention;
FIG. 2 shows a connection schematic of a drive control circuit according to one embodiment of the invention;
FIG. 3 shows a connection schematic of a drive control circuit according to one embodiment of the invention;
FIG. 4 illustrates a schematic block diagram of an air conditioner according to an embodiment of the present invention;
FIG. 5 shows a flow diagram of a control method of a drive control circuit according to an embodiment of the invention;
FIG. 6 shows a flow diagram of a control method of a drive control circuit according to an embodiment of the invention;
FIG. 7 shows a schematic block diagram of a control arrangement of a drive control circuit according to an embodiment of the invention;
fig. 8 shows a schematic block diagram of an air conditioner according to an embodiment of the present invention.
Wherein, the correspondence between the reference numbers and the part names in fig. 1 to fig. 4 and fig. 8 is:
100 drive control circuit, 102 detection device, 104 drive circuit, 106 protection circuit, 108 first controller, 110 second controller, 200 air conditioner, 202 compressor, 700 drive control circuit control device, 702 memory, 704 controller.
Detailed Description
So that the manner in which the above recited aspects, features and advantages of the present invention can be understood in detail, a more particular description of the invention, briefly summarized above, may be had by reference to the embodiments thereof which are illustrated in the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
Example one
In an embodiment of the present invention, as shown in fig. 1, fig. 2 and fig. 3, there is provided a drive control circuit 100, wherein the drive control circuit 100 includes: a drive circuit 104, a detection device 102, a protection circuit 106, and a first controller 108. Specifically, the detection device 102 is configured to output an action signal according to the received operating condition parameter; an input end of the protection circuit 106 is connected with the detection device 102, an output end of the protection circuit 106 is connected with an input end of the driving circuit 104, and the protection circuit 106 is configured to receive the action signal and stop outputting the driving signal to the driving circuit 104; the input terminal of the first controller 108 is connected to the detection device 102 and the output terminal of the protection circuit 106, the output terminal of the first controller 108 is connected to the driving circuit 104, and the first controller 108 is configured to receive the action signal and/or at least part of the driving signal and control the driving circuit 104 to stop working.
In the embodiment of the present invention, the driving circuit 104 is connected to the protection circuit 106, the driving circuit 104 may be understood as a driving part for implementing parameter adjustment in a driving container protection scheme, such as a compressor, and the detection device 102 may output an action signal according to the received working condition parameter, such as an HCV element, to determine whether the current working condition parameter is abnormal or not, and output the action signal when the current working condition parameter is abnormal, and the action signal may be sensed by the protection circuit 106, in a normal condition, after receiving the action signal, the protection circuit 106 (such as an HCV element 244) starts a protection function, such as stopping outputting the driving signal (such as a pulse width modulation signal) to the driving circuit 104, and since the protection circuit 106 is a semiconductor device, the reliability is low, in an operation process, in order to solve the problem of low reliability of the protection circuit 106, the first controller 108 is arranged, and the first controller 108 controls the driving circuit 104 to stop working according to the received action signal and the driving signal, so that the driving circuit 104 can be controlled when the protection circuit 106 fails, the influence of the unreliable protection circuit 106 on the reliability of the driving control circuit 100 in operation is reduced, and the reliability of the container protection scheme in operation is improved.
In addition, the first controller 108 is respectively connected to the output terminals of the detection device 102 and the protection circuit 106, so as to obtain the connection relationship according to the action signal and at least part of the driving signal, and in order to ensure the reliability of the connection between the first controller 108 and the output terminals of the detection device 102 and the protection circuit 106, the connection relationship can be verified according to the action signal and at least part of the driving signal, thereby reducing the influence of the unreliable connection relationship on the reliability of the driving control circuit during operation, and improving the reliability of the container protection scheme during operation.
Wherein, detection device 102 includes the detection switch, and the operating mode parameter includes: one or more of temperature value, pressure value, humidity value, illumination intensity value and volume value.
When the working condition parameter is a pressure value, the detection device 102 is a pressure detection switch for detecting the pressure condition in the container, and when the pressure value in the container is greater than a pressure value threshold value of the automatic action of the detection device 102, wherein the pressure value threshold value can be set according to a container protection scheme, the detection device 102 acts, and the drive circuit 104 controls the action of the pressure release valve through a pressure release valve arranged on a pipeline of the container, so as to realize pressure protection.
Similarly, the detection switch may be selected according to the selection of the operating condition parameters, such as selecting one or more of the detection devices 102 corresponding to the temperature value, the pressure value, the humidity value, the illumination intensity value, and the volume value.
In this embodiment, the condition parameters include, but are not limited to, one or more of a temperature value, a pressure value, a humidity value, a light intensity value, and a volume value, and further include common state parameters of the container, such as deformation of the container wall.
In one embodiment, the control of the stop of the driving circuit 104 is realized by changing a level signal for controlling the enable terminal of the driving circuit 104, such as a high level, as shown in fig. 3, when a data line needs to be set separately.
Example two
In an embodiment of the present invention, there is provided a driving control circuit 100, as shown in fig. 2, the driving control circuit 100 including: a drive circuit 104, a detection device 102, a protection circuit 106, a first controller 108, and a second controller 110. Specifically, the detection device 102 is configured to output an action signal according to the received operating condition parameter; an input end of the protection circuit 106 is connected with the detection device 102, an output end of the protection circuit 106 is connected with an input end of the driving circuit 104, and the protection circuit 106 is configured to receive the action signal and stop outputting the driving signal to the driving circuit 104; the input end of the first controller 108 is connected to the output ends of the detection device 102 and the protection circuit 106, the output end of the first controller 108 is connected to the driving circuit 104, the first controller 108 is configured to receive the action signal and/or at least part of the driving signal and control the driving circuit 104 to stop working, the second controller 110 is connected to the detection device 102 and the protection circuit 106, and the second controller 110 is configured to receive the action signal and stop outputting the driving signal to the protection circuit 106.
In this embodiment, normally, the protection circuit 106 is used as a buffer, for example, a received signal is forwarded to the driving circuit 104, and the second controller 110 is configured to stop outputting the driving signal to the protection circuit 106 in response to the action signal when receiving the action signal, so as to control the driving circuit 104 from a software perspective.
EXAMPLE III
In any of the embodiments described above, as shown in fig. 1, 2, and 3, the first controller 108 is further configured to: and determining that the driving circuit 104 stops working, and outputting first warning information.
In this embodiment, when it is determined that the driving control circuit 100 stops operating, the first warning message is sent out, so that a maintenance worker can timely maintain the failed protection circuit 106, thereby improving the reliability of the operation of the driving control circuit 100.
In any of the above embodiments, the first controller 108 is further configured to: and running the self-test program, determining that the self-test result indicated by the self-test program does not meet the preset detection result, and controlling the driving circuit 104 to stop working.
In this embodiment, the first controller 108 executes the self-test program, and compares the self-test result indicated by the self-test program with the preset detection result, so as to control the driving circuit 104 to stop working when the self-test result indicated by the self-test program does not meet the preset detection result, so as to reduce the influence of the abnormality of the first controller 108 on the reliability of the driving control circuit 100 during operation, thereby improving the reliability of the container protection scheme during operation.
The self-test program may be understood as a pre-stored program, such as checking its ROM, RAM, interrupt function, timer function, register read/write, program CRC or other check, to ensure its reliability.
In any of the above embodiments, the first controller 108 is further configured to: determining that the drive control circuit 100 is powered on, and controlling the drive circuit 104 to start and stop according to preset times; and determining that the actual starting and stopping times of the driving circuit 104 are inconsistent with the preset times, and outputting second warning information.
In this embodiment, in order to reduce the influence of the first controller 108 on the reliability of the driving circuit 104 caused by the unreliable control process of the driving circuit 104 on the driving control circuit 100, it is required to detect whether the driving circuit 104 is controllable, specifically, when the driving control circuit 100 is powered on, the driving circuit 104 is controlled to start and stop for a preset number of times, and the number of times of actual start and stop of the driving circuit 104 is compared with the preset number of times, when the number of times of actual start and stop of the driving circuit 104 is not consistent with the preset number of times, it is determined that the control of the driving circuit 104 by the first controller 108 is unstable, and second warning information is output, so that a maintenance person can perform maintenance in time, so as to reduce the influence of the control abnormality of the driving circuit 104 by the first controller 108 on the reliability of the driving control circuit 100, and further improve the reliability of the container protection scheme during.
The preset times can be set by a maintenance person, for example, by selecting an empirical value.
In one embodiment, the first controller 108 and the driving circuit 104 acquire or record the number of times the driving circuit 104 actually starts or stops through a data line separately provided.
The first warning information and/or the second warning information can be sent to a terminal of a maintenance worker through the server so as to improve the timeliness of sending the warning information.
Example four
In any of the above embodiments, as shown in fig. 3, the detecting device 102 is connected to the first controller 108 via at least two data lines, and the first controller 108 is further configured to: comparing at least two action signals acquired through at least two data lines; and determining that the at least two action signals are inconsistent, and controlling the driving circuit 104 to stop working.
In this embodiment, when the line connection between the detection device 102 and the first controller 108 is abnormal, such as a cold joint or a desoldering, a pin falling, and the like, the obtained action signal is abnormal, and the abnormal action signal or the control of the driving circuit 104 is affected, the detection device 102 and the first controller 108 are connected through at least two data lines, so as to compare at least two action signals obtained through the at least two data lines, and when the at least two action signals are detected to be inconsistent, it is determined that there is a problem in the obtaining process of the action signal, and the driving circuit 104 is controlled to stop working, so as to reduce the influence of the obtained action signal on the control of the driving circuit 104.
In any of the above embodiments, the output of the protection circuit 106 is connected to the first controller 108 via at least two data lines, and the first controller 108 is further configured to: comparing at least two driving signals acquired through at least two data lines; and determining that the at least two driving signals are inconsistent, and controlling the driving circuit 104 to stop working.
In this embodiment, when the line connection between the output end of the protection circuit 106 and the first controller 108 is abnormal, such as insufficient solder or solder failure, pin falling, and the like, the obtained driving signal is abnormal, and the abnormal driving signal or the control of the driving circuit 104 is affected, the output end of the protection circuit 106 is limited to be connected with the first controller 108 through at least two data lines, so as to compare at least two driving signals obtained through the at least two data lines, and when the at least two driving signals are detected to be inconsistent, it is determined that the driving signal has a problem in the obtaining process, and the driving circuit 104 is controlled to stop working, so as to reduce the influence of the unreliable obtained driving signal on the control of the driving circuit 104.
EXAMPLE five
In an embodiment of the present invention, an air conditioner is provided, and as shown in fig. 4, the air conditioner 200 includes a compressor 202 and has the driving control circuit 100 provided in any embodiment of the first aspect, and therefore, the air conditioner 200 provided in the embodiment of the present invention has all the advantages of the driving control circuit 100 provided in any embodiment of the first aspect, which are not listed here.
Wherein, the detection device is arranged on a container, and the container can be a tank body of the oil-liquid separator and/or the compressor.
EXAMPLE six
In one embodiment of the present invention, as shown in fig. 5, there is provided a control method of a drive control circuit including a drive circuit; a detection device configured to output an action signal according to the received operating condition parameter; the protection circuit is connected with the detection device at the input end, connected with the input end of the driving circuit at the output end and configured to receive the action signal and stop outputting the driving signal to the driving circuit; a control method of a drive control circuit, comprising:
In this embodiment, the driving circuit may be understood as a driving portion for implementing parameter adjustment in a protection scheme of a driving container, the detecting device may output an action signal according to the received working condition parameter to determine whether the current working condition parameter is abnormal or not, when the current working condition parameter is abnormal, the action signal may be output, and the action signal may be sensed by the protection circuit, in general, the protection circuit starts a protection function after receiving the action signal, such as stopping outputting the driving signal to the driving circuit, because the protection circuit employs a semiconductor device, during operation, the reliability is low, in order to solve the problem of low reliability of the protection circuit, the driving circuit may be controlled when the protection circuit fails by controlling the driving circuit to stop operating according to the received action signal and the driving signal, the influence of the unreliable protection circuit on the reliability of the driving control circuit in operation is reduced, and the reliability of the container protection scheme in operation is improved.
In addition, the drive circuit is controlled according to the action signal or at least part of the drive signal, so that the influence of the unreliable action signal or at least part of the drive signal on the reliability of the drive control circuit in operation is reduced, and the reliability of the container protection scheme in operation is improved. Wherein, detection device includes detection switch, and operating mode parameter includes: one or more of temperature value, pressure value, humidity value, illumination intensity value and volume value.
When the working condition parameter is a pressure value, the detection device is a pressure detection switch and is used for detecting the pressure condition in the container, and when the pressure value in the container is larger than the pressure value threshold value of the automatic action of the detection device, the pressure value threshold value can be set according to the container protection scheme, the detection device acts, and the drive circuit controls the action of the pressure release valve through the pressure release valve arranged on the pipeline of the container so as to realize pressure protection.
Similarly, the detection switch may be selected according to the selection of the working condition parameters, such as selecting one or more of the detection devices corresponding to the temperature value, the pressure value, the humidity value, the illumination intensity value, and the volume value.
In this embodiment, the condition parameters include, but are not limited to, one or more of a temperature value, a pressure value, a humidity value, a light intensity value, and a volume value, and further include common state parameters of the container, such as deformation of the container wall.
In one embodiment of the present invention, after the step of controlling the driving circuit to stop operating, the method further includes: and outputting the first warning information.
In the embodiment, when the drive control circuit is determined to stop running, the first warning information is sent out, so that maintenance personnel can maintain the failed protection circuit in time, and further the running reliability of the drive control circuit is improved.
EXAMPLE seven
In an embodiment of the present invention, as shown in fig. 6, there is provided a control method of a drive control circuit, including:
and step 604, determining that a self-test result indicated by the self-test program meets a preset detection result, receiving an action signal and/or at least part of a driving signal, and controlling the driving circuit to stop working.
In the embodiment, the self-checking program is executed, and the self-checking result indicated by the self-checking program is compared with the preset detection result, so that when the self-checking result indicated by the self-checking program does not meet the preset detection result, the driving circuit is controlled to stop working, the probability of abnormal operation of the driving control circuit is reduced, and the reliability of the operation of the container protection scheme is further improved.
The self-test program may be understood as a pre-stored program, such as checking its ROM, RAM, interrupt function, timer function, register read/write, program CRC or other check, to ensure its reliability.
In any of the above embodiments, before the step of receiving the action signal and/or at least part of the driving signal and controlling the driving circuit to stop operating, the method further includes: determining that a drive control circuit is powered on, and controlling the drive circuit to start and stop according to preset times; and determining that the actual starting and stopping times of the driving circuit are inconsistent with the preset times, and outputting second warning information.
In this embodiment, in order to reduce the influence of the unreliable control process of the driving circuit on the reliability of the driving control circuit, whether the driving circuit is controllable or not needs to be detected, specifically, when the driving control circuit is powered on, the driving circuit is controlled to start and stop according to the preset times, the actual start and stop times of the driving circuit are compared with the preset times, when the actual start and stop times of the driving circuit are inconsistent with the preset times, the driving circuit is determined to be unstable in control, and second warning information is output, so that maintenance personnel can timely perform maintenance, the influence of the control abnormality of the driving circuit on the reliability of the driving control circuit is reduced, and further, the reliability of the operation of the container protection scheme is improved.
The preset times can be set by a maintenance person, for example, by selecting an empirical value.
In addition, the drive control circuit is determined to be powered on, and the drive circuit is controlled to be started and stopped according to preset times; and determining that the actual starting and stopping times of the driving circuit are inconsistent with the preset times, outputting second warning information, running a self-checking program, determining that a self-checking result indicated by the self-checking program does not meet a preset detection result, controlling the driving circuit to stop working while receiving the action signal and part or all of the driving signals, and controlling the driving circuit to stop working before the driving circuit also can be independently appeared, wherein the running sequence can be set according to actual needs.
The first warning information and/or the second warning information can be sent to a terminal of a maintenance worker through the server so as to improve the timeliness of sending the warning information.
In one embodiment, the step of receiving the action signal and controlling the driving circuit to stop working specifically includes: comparing at least two action signals acquired through at least two data lines; and determining that the at least two action signals are inconsistent, and controlling the driving circuit to stop working.
In this embodiment, at least two action signals acquired through at least two data lines are limited, so that the at least two action signals acquired through the at least two data lines are compared, when the at least two action signals are detected to be inconsistent, it is determined that a problem exists in the acquisition process of the action signals, and the driving circuit is controlled to stop working, so as to reduce the influence of the acquired action signals on the control of the driving circuit.
In one embodiment, the step of receiving at least part of the driving signal and controlling the driving circuit to stop working specifically includes: comparing at least two driving signals acquired through at least two data lines; and determining that the at least two driving signals are inconsistent, and controlling the driving circuit to stop working.
In this embodiment, at least two driving signals acquired through at least two data lines are defined so as to compare the at least two driving signals acquired through the at least two data lines, and when it is detected that the at least two driving signals are inconsistent, it is determined that a problem exists in the acquiring process of the driving signals, and the driving circuit is controlled to stop working, so as to reduce the influence of the acquired driving signals on the control of the driving circuit.
Example eight
In one embodiment of the present invention, as shown in fig. 7, there is provided a control apparatus 700 for driving a control circuit, including: a memory 702, the memory 702 having a computer program stored thereon; a controller 704, the controller 704 executing a computer program to implement the steps of the control method of the drive control circuit as described above.
In this embodiment, the control device 700 of the driving control circuit includes a memory 702 and a controller 704, where the memory 702 stores a computer program thereon, and the controller 704 executes the computer program to implement the steps of the control method of the driving control circuit as described above, and the control device 700 of the driving control circuit provided in the embodiment of the present invention has all the beneficial effects of the control method of the driving control circuit provided in any embodiment of the third aspect, which are not listed herein.
Example nine
In one embodiment of the present invention, as shown in fig. 8, there is provided an air conditioner including: a drive circuit 104; a detection device 102, the detection device 102 being configured to output an action signal according to the received operating condition parameter; a protection circuit 106, an input end of the protection circuit 106 is connected with the detection device 102, an output end of the protection circuit 106 is connected with an input end of the driving circuit 104, and the protection circuit 106 is configured to receive the action signal and stop outputting the driving signal to the driving circuit 104; as described above, in the control device 700 of the drive control circuit, the input terminal of the control device 700 of the drive control circuit is connected to the detection device 102 and the output terminal of the protection circuit 106, and the output terminal of the control device 700 of the drive control circuit is connected to the drive circuit 104.
In this embodiment, the air conditioner includes the driving circuit 104, the detecting device 102, the protection circuit 106 and the control device 700 of the driving control circuit in the above embodiment, wherein the driving circuit 104 can be understood as a driving part for implementing parameter adjustment in the driving container protection scheme, and the detecting device 102 can output an action signal according to the received working condition parameter, and can be understood as the detected working condition parameter to determine whether the current working condition parameter is abnormal, when the current working condition parameter is abnormal, the action signal is output, and the action signal can be sensed by the protection circuit 106, because the input end of the control device 700 of the driving control circuit is connected with the output ends of the detecting device 102 and the protection circuit 106, and the output end of the control device 700 of the driving control circuit is connected with the driving circuit 104, the air conditioner has all the benefits of the control device 700 of the driving control circuit, this is not to be taken as an example.
The driving circuit 104 is a circuit for driving the compressor to operate, such as an inverter circuit including an insulated gate bipolar transistor, wherein the detecting device 102 is disposed on a container, and the container may be an oil-liquid separator and/or a tank of the compressor.
In the description of the present invention, the terms "plurality" or "a plurality" refer to two or more, and unless otherwise specifically limited, the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention; the terms "connected," "mounted," "secured," and the like are to be construed broadly and include, for example, fixed connections, removable connections, or integral connections; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description of the present invention, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In the present invention, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (19)
1. A drive control circuit, comprising:
a drive circuit;
a detection device configured to output an action signal according to the received operating condition parameter;
the input end of the protection circuit is connected with the detection device, the output end of the protection circuit is connected with the input end of the drive circuit, and the protection circuit is configured to receive the action signal and stop outputting the drive signal to the drive circuit;
the input end of the first controller is connected with the output ends of the detection device and the protection circuit, the output end of the first controller is connected with the driving circuit, and the first controller is configured to receive the action signal and/or at least part of the driving signal and control the driving circuit to stop working.
2. The drive control circuit according to claim 1, wherein the detection device is connected to the first controller via at least two data lines, and the first controller is configured to:
comparing at least two action signals acquired through the at least two data lines;
and determining that at least two action signals are inconsistent, and controlling the driving circuit to stop working.
3. The drive control circuit according to claim 1, wherein the output terminal of the protection circuit is connected to the first controller via at least two data lines, and the first controller is configured to:
comparing the at least two driving signals acquired through the at least two data lines;
and determining that at least two driving signals are inconsistent, and controlling the driving circuit to stop working.
4. The drive control circuit according to claim 1, further comprising:
a second controller connected to the detection device and the protection circuit, the second controller configured to receive the action signal and stop outputting the driving signal to the protection circuit.
5. The drive control circuit according to any one of claims 1 to 4, wherein the first controller is further configured to:
and determining that the driving circuit stops working, and outputting first warning information.
6. The drive control circuit according to any one of claims 1 to 4, wherein the first controller is further configured to:
and running a self-checking program, determining that a self-checking result indicated by the self-checking program does not meet a preset detection result, and controlling the driving circuit to stop working.
7. The drive control circuit according to any one of claims 1 to 4, wherein the first controller is further configured to:
determining that the drive control circuit is powered on, and controlling the drive circuit to start and stop according to preset times; and
and determining that the actual starting and stopping times of the driving circuit are inconsistent with the preset times, and outputting second warning information.
8. The drive control circuit according to any one of claims 1 to 4, wherein the detection device includes a detection switch.
9. The drive control circuit according to any one of claims 1 to 4,
the working condition parameters comprise: one or more of temperature value, pressure value, humidity value, illumination intensity value and volume value.
10. An air conditioner, comprising:
a compressor;
the drive control circuit according to any one of claims 1 to 9;
the driving circuit of the driving control circuit is used for driving the compressor to operate.
11. A control method of a drive control circuit is characterized in that the drive control circuit comprises a drive circuit; a detection device configured to output an action signal according to the received operating condition parameter; the input end of the protection circuit is connected with the detection device, the output end of the protection circuit is connected with the input end of the drive circuit, and the protection circuit is configured to receive the action signal and stop outputting the drive signal to the drive circuit; the control method of the drive control circuit includes:
and controlling the driving circuit to stop working after receiving the action signal and/or at least part of the driving signal.
12. The control method of the drive control circuit according to claim 11, further comprising, after the step of controlling the drive circuit to stop operating:
and outputting the first warning information.
13. The method according to claim 11, wherein the step of controlling the driving circuit to stop operating upon receiving the operation signal includes:
comparing at least two action signals acquired through at least two data lines;
and determining that at least two action signals are inconsistent, and controlling the driving circuit to stop working.
14. The method according to claim 11, wherein the step of receiving at least part of the driving signal and controlling the driving circuit to stop operating specifically comprises:
comparing at least two driving signals acquired through at least two data lines;
and determining that at least two driving signals are inconsistent, and controlling the driving circuit to stop working.
15. The method according to any one of claims 11 to 14, further comprising, before the step of controlling the driving circuit to stop operating upon receiving the operation signal and/or at least a part of the driving signal, the step of:
and running a self-checking program, determining that a self-checking result indicated by the self-checking program does not meet a preset detection result, and controlling the driving circuit to stop working.
16. The method according to any one of claims 11 to 14, further comprising, before the step of controlling the driving circuit to stop operating upon receiving the operation signal and/or at least a part of the driving signal, the step of:
determining that the drive control circuit is powered on, and controlling the drive circuit to start and stop according to preset times; and
and determining that the actual starting and stopping times of the driving circuit are inconsistent with the preset times, and outputting second warning information.
17. The control method of the drive control circuit according to any one of claims 11 to 14, wherein the operating condition parameter includes: one or more of temperature value, pressure value, humidity value, illumination intensity value and volume value.
18. A control device that drives a control circuit, comprising:
a memory having a computer program stored thereon;
a controller that executes steps of the computer program implementing a control method of the drive control circuit according to any one of claims 11 to 17.
19. An air conditioner, comprising:
a drive circuit;
a detection device configured to output an action signal according to the received operating condition parameter;
the input end of the protection circuit is connected with the detection device, the output end of the protection circuit is connected with the input end of the drive circuit, and the protection circuit is configured to receive the action signal and stop outputting the drive signal to the drive circuit;
the control device of the drive control circuit according to claim 18, wherein an input terminal of the control device of the drive control circuit is connected to an output terminal of the detection device and the protection circuit, and an output terminal of the control device of the drive control circuit is connected to the drive circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010488814.XA CN111541220A (en) | 2020-06-02 | 2020-06-02 | Drive control circuit, method and device and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010488814.XA CN111541220A (en) | 2020-06-02 | 2020-06-02 | Drive control circuit, method and device and air conditioner |
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| Publication Number | Publication Date |
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| CN111541220A true CN111541220A (en) | 2020-08-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010488814.XA Pending CN111541220A (en) | 2020-06-02 | 2020-06-02 | Drive control circuit, method and device and air conditioner |
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| CN105337262A (en) * | 2015-09-08 | 2016-02-17 | 广东美的制冷设备有限公司 | Variable frequency air conditioner and over-current protective circuit of power factor correction (PFC) circuit |
| CN108332343A (en) * | 2017-07-21 | 2018-07-27 | 广东美的暖通设备有限公司 | Control method, control device and the air conditioner of air conditioner |
| WO2019123545A1 (en) * | 2017-12-19 | 2019-06-27 | 三菱電機株式会社 | Air conditioner |
| CN111005862A (en) * | 2019-12-16 | 2020-04-14 | 广东美的暖通设备有限公司 | Pressure protection circuit, control method, and computer-readable storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105337262A (en) * | 2015-09-08 | 2016-02-17 | 广东美的制冷设备有限公司 | Variable frequency air conditioner and over-current protective circuit of power factor correction (PFC) circuit |
| CN108332343A (en) * | 2017-07-21 | 2018-07-27 | 广东美的暖通设备有限公司 | Control method, control device and the air conditioner of air conditioner |
| WO2019123545A1 (en) * | 2017-12-19 | 2019-06-27 | 三菱電機株式会社 | Air conditioner |
| CN111005862A (en) * | 2019-12-16 | 2020-04-14 | 广东美的暖通设备有限公司 | Pressure protection circuit, control method, and computer-readable storage medium |
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