CN110361589B

CN110361589B - Device and method for acquiring running state data of compressor and management system

Info

Publication number: CN110361589B
Application number: CN201910734900.1A
Authority: CN
Inventors: 张洪; 石泽发; 涂小平; 舒宝
Original assignee: Sichuan Hongmei Intelligent Technology Co Ltd
Current assignee: Sichuan Hongmei Intelligent Technology Co Ltd
Priority date: 2019-08-09
Filing date: 2019-08-09
Publication date: 2021-09-28
Anticipated expiration: 2039-08-09
Also published as: CN110361589A

Abstract

The invention provides a device, a method and a management system for acquiring running state data of a compressor, wherein the device comprises the following components: the alternating current input module respectively transmits externally input alternating current to the switching power supply module, the current detection module and the voltage detection module; so that the switching power supply module supplies power to the main control module and the communication module; the main control module determines whether the voltage and the current of the alternating current are abnormal according to the current of the alternating current detected by the current detection module and the voltage of the alternating current detected by the voltage detection module, and sends a detection result, a first low-voltage direct-current voltage signal corresponding to the current of the alternating current and a second low-voltage direct-current voltage signal corresponding to the voltage of the alternating current as running state data to an external server through the communication module, so that the client determines the running state of the compressor to be detected through the running state data received by the server. This scheme can fix a position unusual problem when the compressor operation is unusual fast.

Description

Device and method for acquiring running state data of compressor and management system

Technical Field

The invention relates to the technical field of compressors, in particular to a device and a method for acquiring running state data of a compressor and a management system.

Background

A compressor is a machine that compresses gas and simultaneously raises the pressure of the gas, is regarded as the heart of a refrigeration system, and is widely used in the field of household appliances such as air conditioners, refrigerators, and the like. The operation condition and the service life of the compressor play an important role in household appliance control systems such as air conditioners, refrigerators and the like.

At present, in the refrigerator and air conditioner models provided with fixed-frequency compressors, the compressors are in passive operation, and the operation states of the whole refrigerator and the whole air conditioner are not monitored. And aiming at the types of the variable frequency compressor air conditioner, the refrigerator and the like, the single monitoring is only carried out on the variable frequency compressor to prevent failure, and the big data monitoring and management are not carried out on the running state of the compressor.

As can be seen from the above description, in the prior art, the operation state of the compressor is not monitored and managed in the operation process of the compressor, so that the problem that the abnormality cannot be quickly located when the operation of the compressor is abnormal is caused.

Disclosure of Invention

The embodiment of the invention provides a device and a method for acquiring running state data of a compressor and a management system, which can be used for rapidly positioning an abnormal problem when the compressor runs abnormally.

In a first aspect, an embodiment of the present invention provides a compressor operating state data acquisition apparatus, including: the device comprises an alternating current input module, a switching power supply module, a current detection module, a voltage detection module, a main control module and a communication module;

the alternating current input module is used for respectively transmitting externally input alternating current to the switching power supply module, the current detection module and the voltage detection module;

the switching power supply module is used for converting the alternating current into low-voltage direct current to supply power to the main control module and the communication module;

the current detection module is used for detecting the current of the alternating current to obtain a corresponding first low-voltage direct-current voltage signal, sending the first low-voltage direct-current voltage signal to the main control module, and transmitting the alternating current to the compressor to be detected so as to enable the compressor to be detected to operate;

the voltage detection module is used for detecting the voltage of the alternating current to obtain a corresponding second low-voltage direct current voltage signal, sending the second low-voltage direct current voltage signal to the main control module, and transmitting the alternating current to the compressor to be detected so as to enable the compressor to be detected to operate;

the main control module is configured to determine whether the current and the voltage of the alternating current are abnormal according to preset detection parameters, the first low-voltage direct current voltage signal and the second low-voltage direct current voltage signal when receiving the first low-voltage direct current voltage signal and the second low-voltage direct current voltage signal, obtain a corresponding electric energy detection result, and send the electric energy detection result, the first low-voltage direct current voltage signal and the second low-voltage direct current voltage signal to the communication module as operation state data;

and the communication module is used for sending the running state data to an external server when receiving the running state data, so that the client determines the running state of the compressor to be detected through the running state data received by the server.

Preferably, the first and second electrodes are formed of a metal,

further comprising: a temperature detection module;

the temperature detection module is used for detecting the body temperature of the compressor body to be detected and the environment temperature of the environment where the compressor to be detected is located, converting the body temperature and the environment temperature into corresponding voltage signals respectively and sending the voltage signals to the main control module;

the main control module is further configured to determine whether the body temperature and the ambient temperature are abnormal according to the detection parameters and the voltage signals when receiving the voltage signals, obtain corresponding temperature detection results, and send the temperature detection results, the body temperature, and the ambient temperature to the communication module as operation state data.

Preferably, the first and second electrodes are formed of a metal,

the current detection module includes: the current transformer and the first conversion circuit;

the alternating current input module is used for transmitting the alternating current to the current transformer;

the current transformer is used for detecting an alternating current value of the alternating current, converting the alternating current value into a corresponding low-voltage isolation current signal in an isolation manner, and sending the low-voltage isolation current signal to the first conversion circuit;

the first conversion circuit is used for converting the low-voltage isolation current signal into a corresponding first low-voltage direct-current voltage signal and sending the first low-voltage direct-current voltage signal to the main control module when receiving the low-voltage isolation current signal.

Preferably, the first and second electrodes are formed of a metal,

the voltage detection module includes: the voltage transformer and the second conversion circuit;

the alternating current input module is used for transmitting the alternating current to the voltage transformer;

the voltage transformer is used for detecting an alternating voltage value of the alternating current, converting the alternating voltage value into a corresponding low-voltage isolation voltage signal in an isolation mode, and sending the low-voltage isolation voltage signal to the second conversion circuit;

and the second conversion circuit is used for converting the low-voltage isolation voltage signal into a corresponding second low-voltage direct-current voltage signal and sending the first low-voltage direct-current voltage signal to the main control module when receiving the low-voltage isolation voltage signal.

Preferably, the first and second electrodes are formed of a metal,

further comprising: a fixed frequency/variable frequency detection module;

the fixed-frequency/variable-frequency detection module is configured to read a driving signal of the compressor to be detected, read a driving parameter of the compressor to be detected according to the driving signal, convert the driving parameter into a corresponding parameter signal, and send the driving signal and the parameter signal to the main control module, where the driving parameter includes: a rotational speed;

the main control module is further configured to, when receiving the driving signal and the parameter signal, determine whether the parameter signal is abnormal according to the detection parameter and the driving signal, obtain a corresponding driving detection result, and send the driving detection result, the driving signal, and the parameter signal to the communication module as operation state data.

In a second aspect, an embodiment of the present invention provides a method for acquiring data of an operating state of a compressor, including:

the method comprises the following steps that external input alternating current is respectively transmitted to a switching power supply module, a current detection module and a voltage detection module through an alternating current input module;

converting the alternating current into low-voltage direct current to supply power to the main control module and the communication module through the switching power supply module;

detecting the current of the alternating current through the current detection module to obtain a corresponding first low-voltage direct current voltage signal, sending the first low-voltage direct current voltage signal to the main control module, and transmitting the alternating current to a compressor to be detected so as to enable the compressor to be detected to operate;

detecting the voltage of the alternating current through the voltage detection module to obtain a corresponding second low-voltage direct current voltage signal, sending the second low-voltage direct current voltage signal to the main control module, and transmitting the alternating current to the compressor to be detected so as to enable the compressor to be detected to operate;

through the main control module, when the first low-voltage direct-current voltage signal and the second low-voltage direct-current voltage signal are received, whether the current and the voltage of the alternating current are abnormal or not is determined according to preset detection parameters, the first low-voltage direct-current voltage signal and the second low-voltage direct-current voltage signal, a corresponding electric energy detection result is obtained, and the electric energy detection result, the first low-voltage direct-current voltage signal and the second low-voltage direct-current voltage signal are sent to the communication module as running state data;

and sending the running state data to an external server through the communication module when the running state data is received, so that the client determines the running state of the compressor to be detected through the running state data received by the server.

Preferably, the first and second electrodes are formed of a metal,

further comprising:

detecting the body temperature of the compressor body to be detected and the environment temperature of the environment where the compressor to be detected is located through a temperature detection module, converting the body temperature and the environment temperature into corresponding voltage signals respectively, and sending the voltage signals to a main control module;

and through the main control module, when the voltage signal is received, whether the body temperature and the environment temperature are abnormal or not is determined according to the detection parameters and the voltage signal, a corresponding temperature detection result is obtained, and the temperature detection result, the body temperature and the environment temperature are used as running state data to be sent to the communication module.

Preferably, the first and second electrodes are formed of a metal,

when the current detection module comprises: when the current transformer and the first conversion circuit are used,

the alternating current is transmitted to the current transformer through the alternating current input module;

detecting the alternating current value of the alternating current through the current transformer, isolating and converting the alternating current value into a corresponding low-voltage isolation current signal, and sending the low-voltage isolation current signal to the first conversion circuit;

through the first conversion circuit, when the low-voltage isolation current signal is received, the low-voltage isolation current signal is converted into a corresponding first low-voltage direct-current voltage signal, and the first low-voltage direct-current voltage signal is sent to the main control module.

Preferably, the first and second electrodes are formed of a metal,

when the voltage detection module includes: when the voltage transformer and the second conversion circuit are connected,

the alternating current is transmitted to the voltage transformer through the alternating current input module;

detecting an alternating voltage value of the alternating current through the voltage transformer, converting the alternating voltage value into a corresponding low-voltage isolation voltage signal in an isolation mode, and sending the low-voltage isolation voltage signal to the second conversion circuit;

and when the low-voltage isolation voltage signal is received, the second conversion circuit converts the low-voltage isolation voltage signal into a corresponding second low-voltage direct-current voltage signal and sends the first low-voltage direct-current voltage signal to the main control module.

Preferably, the first and second electrodes are formed of a metal,

further comprising:

reading a driving signal of the compressor to be detected through a fixed frequency/variable frequency detection module, reading a driving parameter of the compressor to be detected according to the driving signal, converting the driving parameter into a corresponding parameter signal, and sending the driving signal and the parameter signal to the main control module, wherein the driving parameter comprises: a rotational speed;

and when receiving the driving signal and the parameter signal, the main control module determines whether the parameter signal is abnormal according to the detection parameter and the driving signal, obtains a corresponding driving detection result, and sends the driving detection result, the driving signal and the parameter signal to the communication module as running state data.

In a third aspect, an embodiment of the present invention provides a system for managing operating state data of a compressor, including: the system comprises a compressor running state data acquisition device, a server and at least one client;

the server is used for receiving the running state data of the compressor to be detected sent by the compressor running state data acquisition device so that the running state data of the at least one client determines the running state of the compressor to be detected.

The embodiment of the invention provides a compressor running state data acquisition device, a method and a management system, wherein external alternating current is transmitted to a switch power supply module, a current detection module and a voltage detection module through an alternating current input module, so that the switch power supply module supplies power to a main control module, the current detection module and the voltage detection module detect the voltage and the current of the alternating current, corresponding first low-voltage direct current voltage signal and second low-voltage direct current voltage signal are transmitted to the main control module, then the compressor to be detected and a communication module are supplied with power to enable the compressor to be detected and the communication module to be powered on to run, the main control module determines whether the voltage and the current of the alternating current transmitted to the compressor to be detected are abnormal according to preset detection parameters and detection results of the current detection module and the voltage detection module, and then the detected electric energy detection result, the first low-voltage direct current voltage signal and the second low-voltage direct current voltage signal are transmitted to the communication module as running state data, the communication module can send the information to an external server, and a user can check the information received by the server through the client, so that the running state of the compressor to be detected can be determined, the running state of the compressor can be monitored and managed, and the problem of abnormal quick positioning when the compressor runs abnormally is facilitated.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a compressor operation state data acquisition device according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of another compressor operating state data acquisition device according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of another compressor operating state data acquisition device according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a further compressor operating state data acquisition device according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a further compressor operating state data acquisition device according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a compressor operation state data acquisition device according to an embodiment of the present invention;

FIG. 7 is a schematic diagram of a first conversion circuit according to an embodiment of the invention;

FIG. 8 is a diagram illustrating a second switching current provided by an embodiment of the present invention;

fig. 9 is a flowchart of a method for acquiring data of an operation state of a compressor according to an embodiment of the present invention;

fig. 10 is a schematic structural diagram of a compressor operation state data management system according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer and more complete, the technical solutions in the embodiments of the present invention will be described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention, and based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the scope of the present invention.

As shown in fig. 1, an embodiment of the present invention provides a compressor operating state data acquisition apparatus, including: the device comprises an alternating current input module 101, a switching power supply module 102, a current detection module 103, a voltage detection module 104, a main control module 105 and a communication module 106;

the alternating current input module 101 is configured to respectively transmit externally input alternating current to the switching power supply module 102, the current detection module 103, and the voltage detection module 104;

the switching power supply module 102 is configured to convert the ac power into a low-voltage dc power to supply power to the main control module 105 and the communication module 106;

the current detection module 103 is configured to detect a current of the alternating current, obtain a corresponding first low-voltage direct-current voltage signal, send the corresponding first low-voltage direct-current voltage signal to the main control module 105, and transmit the alternating current to a compressor to be detected, so that the compressor to be detected operates;

the voltage detection module 104 is configured to detect a voltage of the alternating current, obtain a corresponding second low-voltage direct current voltage signal, send the second low-voltage direct current voltage signal to the main control module 105, and transmit the alternating current to the compressor to be detected, so that the compressor to be detected operates;

the main control module 105 is configured to, when receiving the first low-voltage direct current voltage signal and the second low-voltage direct current voltage signal, determine whether the current and the voltage of the alternating current are abnormal according to preset detection parameters, the first low-voltage direct current voltage signal, and the second low-voltage direct current voltage signal, obtain a corresponding electric energy detection result, and send the electric energy detection result, the first low-voltage direct current voltage signal, and the second low-voltage direct current voltage signal to the communication module 106 as operation state data;

the communication module 106 is configured to send the operation state data to an external server when receiving the operation state data, so that the client determines the operation state of the compressor to be detected according to the operation state data received by the server.

In the embodiment of the invention, the external alternating current is transmitted to the switching power supply module, the current detection module and the voltage detection module through the alternating current input module, so that the switching power supply module supplies power to the main control module, the voltage and the current of the alternating current are detected through the current detection module and the voltage detection module, a corresponding first low-voltage direct current voltage signal and a corresponding second low-voltage direct current voltage signal are transmitted to the main control module, then the compressor to be detected and the communication module are supplied with power to be operated, the main control module determines whether the voltage and the current of the alternating current transmitted to the compressor to be detected are abnormal according to preset detection parameters and detection results of the current detection module and the voltage detection module, and then the detected electric energy detection result, the first low-voltage direct current voltage signal and the second low-voltage direct current voltage signal are transmitted to the communication module as operation state data, the communication module can send the information to an external server, and a user can check the information received by the server through the client, so that the running state of the compressor to be detected can be determined, the running state of the compressor can be monitored and managed, and the problem of abnormal quick positioning when the compressor runs abnormally is facilitated.

In an embodiment of the present invention, as shown in fig. 2, the compressor operation state data collecting device further includes: a temperature detection module 201;

the temperature detection module 201 is configured to detect a body temperature of the compressor to be detected and an ambient temperature of an environment where the compressor to be detected is located, and convert the body temperature and the ambient temperature into corresponding voltage signals respectively and send the voltage signals to the main control module 105;

the main control module 105 is further configured to determine whether the body temperature and the ambient temperature are abnormal according to the detection parameter and the voltage signal when receiving the voltage signal, obtain a corresponding temperature detection result, and send the temperature detection result, the body temperature, and the ambient temperature to the communication module 106 as operation state data.

In the embodiment of the invention, the body temperature of the body of the compressor to be detected and the environment temperature of the working environment can be detected through the temperature detection module, so that the main control module can determine whether the compressor to be detected operates abnormally or not through the body temperature and determine whether the compressor to be detected is suitable for the current working environment or not through the environment temperature, and the abnormal operation of the compressor to be detected caused by overhigh or overlow body temperature and environment temperature of the compressor to be detected is avoided.

In order to ensure the safe operation of the compressor to be tested, as shown in fig. 3, in an embodiment of the present invention, the current detection module 103 includes: a current transformer 1031 and a first conversion circuit 1032;

the alternating current input module is configured to transmit the alternating current to the current transformer 1031;

the current transformer 1031 is configured to detect an ac current value of the ac power, convert the ac current value into a corresponding low-voltage isolated current signal in an isolated manner, and send the low-voltage isolated current signal to the first conversion circuit 1032;

the first conversion circuit 1032 is configured to convert the low-voltage isolation current signal into a corresponding first low-voltage direct-current voltage signal when receiving the low-voltage isolation current signal, and send the first low-voltage direct-current voltage signal to the main control module 105.

In the embodiment of the invention, the current of the alternating current in the path is monitored and measured by a current transformer by utilizing the electromagnetic induction principle, the corresponding alternating current value is determined, the alternating current value is isolated and converted into a low-voltage isolation current signal, and the low-voltage isolation current signal is converted into a first low-voltage direct current voltage signal which can be identified by a main control module through a first conversion circuit, so that the main control module determines whether the current of the alternating current is abnormal or not through the first low-voltage direct current voltage signal.

In an embodiment of the present invention, as shown in fig. 4, the voltage detecting module 104 includes: a voltage transformer 1041 and a second conversion circuit 1042;

the alternating current input module is configured to transmit the alternating current to the voltage transformer 1041;

the voltage transformer 1041 is configured to detect an ac voltage value of the ac power, isolate and convert the ac voltage value into a corresponding low-voltage isolated voltage signal, and send the low-voltage isolated voltage signal to the second conversion circuit 1042;

the second conversion circuit 1042 is configured to, when receiving the low-voltage isolation voltage signal, convert the low-voltage isolation voltage signal into a corresponding second low-voltage direct-current voltage signal, and send the first low-voltage direct-current voltage signal to the main control module 105.

In the embodiment of the invention, the voltage transformer monitors and measures the voltage of the alternating current in the way by utilizing the electromagnetic induction principle, determines the corresponding alternating voltage value, converts the alternating voltage value into a low-voltage isolation voltage signal in an isolation manner, and converts the low-voltage isolation voltage signal into a first low-voltage direct current voltage signal which can be identified by the main control module through the second conversion circuit, so that the main control module determines whether the voltage of the alternating current is abnormal or not through the second low-voltage direct current voltage signal.

In an embodiment of the present invention, as shown in fig. 5, the compressor operation state data collecting device further includes: a fixed frequency/variable frequency detection module 601;

the fixed-frequency/variable-frequency detection module 601 is configured to read a driving signal of the compressor to be detected, read a driving parameter of the compressor to be detected according to the driving signal, convert the driving parameter into a corresponding parameter signal, and send the driving signal and the parameter signal to the main control module 105, where the driving parameter includes: a rotational speed;

the main control module 105 is further configured to, when receiving the driving signal and the parameter signal, determine whether the parameter signal is abnormal according to the detection parameter and the driving signal, obtain a corresponding driving detection result, and send the driving detection result, the driving signal, and the parameter signal to the communication module 106 as operation state data.

In the embodiment of the invention, the drive signal of the drive plate of the compressor to be detected can be read through the fixed frequency/variable frequency detection module, and whether the operation mode of the drive plate is the variable frequency mode or the fixed frequency mode can be determined through the drive signal, so that the drive parameters such as the rotating speed and the like corresponding to the compressor to be detected are read according to different operation modes, and the main control module can determine whether the operation of the compressor to be detected is abnormal or not according to the drive parameters.

In order to more clearly illustrate the technical solution and advantages of the present invention, the following describes in detail a compressor operation state data acquisition device provided by an embodiment of the present invention, as shown in fig. 6, specifically including:

the system comprises an alternating current input module 601, a main control module 602, a switching power supply module 603, a current transformer 604, a first conversion circuit 605, a voltage transformer 606, a second conversion circuit 607, a temperature detection module 608, a fixed frequency/variable frequency detection module 609 and a communication module 610;

the alternating current input module 601 is respectively connected with the switching power supply module 603, the current transformer 604 and the voltage transformer 606;

the first conversion circuit 605, the second conversion circuit 607, the temperature detection module 608 and the fixed frequency/variable frequency detection module 609 are all connected with the main control module 602;

the main control module 602 is connected with the communication module 610;

and the alternating current input module is used for respectively transmitting externally input alternating current to the switching power supply module 603, the current transformer 604 and the voltage transformer 606.

And the switching power supply module 603 is configured to convert the ac power into a low-voltage dc power to supply power to the main control module 602 and the communication module 610.

Specifically, the externally input alternating current reaches the main control module and the communication module through the alternating current input module and the switching power supply module, so that the main control module and the communication module can normally operate, the main control module is convenient to monitor and detect whether the operation state of the compressor to be detected is abnormal, and the communication module is convenient to upload the monitoring data of the main control module to an external server.

The current transformer 604 is configured to detect an ac current value of the ac power, isolate and convert the ac current value into a corresponding low-voltage isolated current signal, and send the low-voltage isolated current signal to the first conversion circuit 605.

The first conversion circuit 605 is configured to convert the low-voltage isolation current signal into a corresponding first low-voltage direct-current voltage signal when receiving the low-voltage isolation current signal, and send the first low-voltage direct-current voltage signal to the main control module 602.

Specifically, can detect the alternating current value of the alternating current of carrying for waiting to detect the compressor through current transformer utilizing the electromagnetic induction principle to keep apart and convert the low pressure isolation current signal into, with the reduction interference signal, the rethread first converting circuit converts the first low pressure direct current voltage signal that safe and host system can discern into, so that host system confirms through this first low pressure direct current voltage signal whether the electric current of the alternating current of carrying for waiting to detect the compressor is unusual.

Specifically, the first conversion circuit may include: a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, an operational amplifier U2B, a rectifier diode D, a first capacitor C1 and a first polarized capacitor C2, as shown in fig. 7, and a current transformer 604 is also shown in fig. 7.

The reverse input end of the operational amplifier U2B is connected with the first end of the current transformer 604, the non-inverting input end of the operational amplifier U2B is connected with the second end of the current transformer, the output end of the operational amplifier U2B is connected with the anode of the rectifier diode D, the cathode of the rectifier diode D is connected with the first end of the first resistor R1, and the second end of the first resistor R1 is grounded;

a first end of the second resistor R2 is connected with the cathode of the rectifier diode D, a second end of the second resistor R2 is connected with a first end of the first capacitor C1, and a second end of the first capacitor C1 is grounded;

a first end of the third resistor R3 is connected with a second end of the current transformer, and a second end of the third resistor R3 is connected with the first end of the current transformer;

a first end of the fourth resistor R4 is connected with a first end of the current transformer, and a second end of the fourth resistor R4 is connected with the anode of the rectifier diode D;

the anode of the first polar capacitor C2 is connected to the cathode of the rectifier diode D, and the cathode of the first polar capacitor C2 is grounded.

The voltage transformer 606 is configured to detect an ac voltage value of the ac power, isolate and convert the ac voltage value into a corresponding low-voltage isolated voltage signal, and send the low-voltage isolated voltage signal to the second conversion circuit 607.

The second conversion circuit 607 is configured to convert the low-voltage isolation voltage signal into a corresponding second low-voltage dc voltage signal when receiving the low-voltage isolation voltage signal, and send the first low-voltage dc voltage signal to the main control module 602.

Specifically, can detect the alternating voltage value of the alternating current of carrying for waiting to detect the compressor through voltage transformer utilizing the electromagnetic induction principle to keep apart and convert the low pressure isolation voltage signal into, with the reduction interference signal, rethread second converting circuit converts the second low pressure direct current voltage signal that safe and host system can discern into, so that host system confirms through this second low pressure direct current voltage signal whether the voltage of carrying for waiting to detect the compressor is unusual.

Specifically, the second conversion circuit may include: a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, an eighth resistor R8, a ninth resistor R9, a tenth resistor R10, an eleventh resistor R11, a second polar capacitor C3, a second capacitor C4 and a bridge rectifier UR, as shown in fig. 8, and a voltage transformer 606 is also shown in fig. 8;

a first current input end of the rectifier bridge stack UR is connected with a first end of the voltage transformer, a second current input end of the rectifier bridge stack UR is connected with a second end of the voltage transformer, an anode of the rectifier bridge stack UR is connected with a first end of a fifth resistor R5, a cathode of the rectifier bridge stack UR is grounded, a second end of a fifth resistor R5 is connected with a first end of a second capacitor C4, and a second end of a second capacitor C4 is grounded;

a first end of the sixth resistor R6 is connected to the first current input end of the rectifier bridge stack UR, and a second end of the sixth resistor R6 is connected to the second current input end of the rectifier bridge stack UR;

a first end of the seventh resistor R7 is connected with the anode of the rectifier bridge stack UR, and a second end of the seventh resistor R7 is grounded;

the anode of the second polar capacitor C3 is connected with the anode of the rectifier bridge stack UR, and the cathode of the second polar capacitor C3 is grounded;

a first end of the eighth resistor R8 is connected with an external live wire L, a second end of the eighth resistor R8 is connected with a first end of a ninth resistor R9, and a second end of the ninth resistor R9 is connected with a third end of the voltage transformer;

a first end of the tenth resistor R10 is connected to the external live line L, a second end of the tenth resistor R10 is connected to a first end of the eleventh resistor R11, and a second end of the eleventh resistor R11 is connected to the third end of the voltage transformer.

The main control module 602 is configured to, when receiving the first low-voltage direct-current voltage signal and the second low-voltage direct-current voltage signal, determine whether the current and the voltage of the alternating current are abnormal according to a preset detection parameter, the first low-voltage direct-current voltage signal, and the second low-voltage direct-current voltage signal, obtain a corresponding electric energy detection result, and send the electric energy detection result, the first low-voltage direct-current voltage signal, and the second low-voltage direct-current voltage signal to the communication module 610 as operation state data.

Specifically, when the main control module receives a first low-voltage direct-current voltage signal corresponding to the current of the alternating current and a second low-voltage direct-current voltage signal corresponding to the voltage of the alternating current in the power-on state, the voltage and the current of the alternating current can be detected according to preset detection parameters, for example, by comparing a signal corresponding to an operable current range of the compressor to be detected in the detection parameters with the first low-voltage direct-current voltage signal, whether the current of the alternating current exceeds the maximum current or the minimum current that the compressor to be detected can bear is determined, and the overload burning or the abnormal operation of the compressor to be detected is avoided. And comparing a signal corresponding to the operable voltage range of the compressor to be detected in the detection parameters with the second low-voltage direct-current voltage signal to determine whether the voltage of the alternating current exceeds the maximum voltage or the minimum voltage which can be borne by the compressor to be detected, so that the overload burning or the abnormal operation of the compressor to be detected is avoided.

It should be noted that the main control module may directly detect the current of the alternating current when receiving the first low-voltage direct-current voltage signal, and directly detect the voltage of the alternating current when receiving the second low-voltage direct-current voltage signal. Or the first low-voltage direct-current voltage signal and the second low-voltage direct-current voltage signal can be received and then the unified detection can be carried out.

The temperature detecting module 608 is configured to detect a body temperature of the compressor body to be detected and an environment temperature of an environment where the compressor to be detected is located, and convert the body temperature and the environment temperature into corresponding voltage signals respectively and send the voltage signals to the main control module 602.

The main control module 602 is configured to determine whether the body temperature and the ambient temperature are abnormal according to the detection parameters and the voltage signal when receiving the voltage signal, obtain a corresponding temperature detection result, and send the temperature detection result, the body temperature, and the ambient temperature to the communication module 610 as operation state data.

Specifically, the temperature detection module detects the body temperature of the compressor body to be detected and the ambient temperature of the environment where the compressor body to be detected is located, and the main control module can compare the temperature range which can be borne by the compressor body to be detected in the detection parameters with the body temperature to determine whether the temperature of the compressor body to be detected is abnormal or not. The main control module can also compare the environmental temperature range of the environment where the compressor to be detected is located in the detection parameters with the detected environmental temperature, determine whether the environment where the compressor to be detected is located is suitable for the operation of the compressor to be detected, and avoid the influence on normal operation caused by overhigh temperature, overhigh environmental temperature or overlow temperature of the compressor to be detected.

The fixed-frequency/variable-frequency detection module 609 is configured to read a driving signal of the compressor to be detected, read a driving parameter of the compressor to be detected according to the driving signal, convert the driving parameter into a corresponding parameter signal, and send the driving signal and the parameter signal to the main control module 602, where the driving parameter includes: the rotational speed.

The main control module 602 is configured to, when receiving the driving signal and the parameter signal, determine whether the parameter signal is abnormal according to the detection parameter and the driving signal, obtain a corresponding driving detection result, and send the driving detection result, the driving signal, and the parameter signal to the communication module 610 as operation state data.

Specifically, a fixed frequency/variable frequency detection module detects a driving signal of a driving plate of a compressor to be detected, and a main control module can compare the driving signal with a signal corresponding to a variable frequency mode in detection parameters and a signal corresponding to the fixed frequency mode to determine whether an operation mode of the compressor to be detected is the fixed frequency mode or the variable frequency mode, so that whether the driving parameters of the motor to be detected, such as the rotating speed, the frequency and the like, are abnormal is determined according to the driving parameters of the motor to be detected, such as the rotating speed, the frequency and the like, respectively corresponding to the fixed frequency mode and the variable frequency mode in the detection parameters.

The communication module 610 is configured to send the operation state data to the server when receiving the operation state data, so that the client determines the operation state of the compressor to be detected through the operation state data received by the server.

Specifically, when receiving the running state data such as the electric energy detection result of the compressor to be detected, the first low-voltage direct-current voltage signal, the second low-voltage direct-current voltage signal, the driving detection result, the driving signal, the parameter signal, the body temperature, the environment temperature and the like sent by the main control module, the communication module can convert the running state data into the wireless high-frequency signal and send the wireless high-frequency signal to the external server, so that the server converts the wireless high-frequency signal into the running state data after receiving the wireless high-frequency signal, and a user can check the running state data such as the body temperature, the environment temperature, the driving signal, the driving parameter, the temperature detection result, the alternating current value and the alternating current voltage value of the compressor to be detected through the client.

The communication module can be a GSM module, and the GSM module transmits data based on a communication base station, so that the remote transmission of the running state data of the compressor to be detected can be realized.

In addition, three clients 611 and servers 612 are also shown in fig. 6, without the compressor to be tested.

As shown in fig. 9, an embodiment of the present invention provides a method for acquiring data of an operating state of a compressor, including:

step 901: the method comprises the following steps that external input alternating current is respectively transmitted to a switching power supply module, a current detection module and a voltage detection module through an alternating current input module;

step 902: converting the alternating current into low-voltage direct current to supply power to the main control module and the communication module through the switching power supply module;

step 903: detecting the current of the alternating current through the current detection module to obtain a corresponding first low-voltage direct current voltage signal, sending the first low-voltage direct current voltage signal to the main control module, and transmitting the alternating current to a compressor to be detected so as to enable the compressor to be detected to operate;

step 904: detecting the voltage of the alternating current through the voltage detection module to obtain a corresponding second low-voltage direct current voltage signal, sending the second low-voltage direct current voltage signal to the main control module, and transmitting the alternating current to the compressor to be detected so as to enable the compressor to be detected to operate;

step 905: through the main control module, when the first low-voltage direct-current voltage signal and the second low-voltage direct-current voltage signal are received, whether the current and the voltage of the alternating current are abnormal or not is determined according to preset detection parameters, the first low-voltage direct-current voltage signal and the second low-voltage direct-current voltage signal, a corresponding electric energy detection result is obtained, and the electric energy detection result, the first low-voltage direct-current voltage signal and the second low-voltage direct-current voltage signal are sent to the communication module as running state data;

step 906: and sending the running state data to an external server through the communication module when the running state data is received, so that the client determines the running state of the compressor to be detected through the running state data received by the server.

In an embodiment of the present invention, the method further comprises:

In an embodiment of the present invention, the current detection module includes: when the current transformer and the first conversion circuit are used,

In an embodiment of the present invention, the voltage detection module includes: when the voltage transformer and the second conversion circuit are connected,

In an embodiment of the present invention, the method further comprises:

As shown in fig. 10, an embodiment of the present invention provides a compressor operation state data management system, including: the system comprises a compressor running state data acquisition device 1001, a server 1002 and at least one client 1003 in any one of the above embodiments;

the server 1002 is configured to receive the operation state data of the compressor to be detected, which is sent by the compressor operation state data acquisition device 1001, so that the operation state data of the at least one client 1003 determines the operation state of the compressor to be detected.

In the embodiment of the invention, the voltage and the current of the alternating current transmitted to the compressor to be detected are detected by the compressor running state data acquisition device, whether the voltage and the current of the alternating current are abnormal or not is determined according to preset detection parameters, then the detected electric energy detection result, a first low-voltage direct-current voltage signal corresponding to the current of the alternating current and a second low-voltage direct-current voltage corresponding to the voltage of the alternating current are sent to the server as running state data, a user can check the running state data received by the server through the client, the running state of the compressor to be detected can be determined, the running state of the compressor to be detected can be monitored and managed, and the problem of abnormal rapid positioning when the compressor runs abnormally is facilitated.

The embodiments of the invention have at least the following beneficial effects:

1. in one embodiment of the invention, an external alternating current is transmitted to the switching power supply module, the current detection module and the voltage detection module through the alternating current input module, so that the switching power supply module supplies power to the main control module, the voltage and the current of the alternating current are detected through the current detection module and the voltage detection module, a corresponding first low-voltage direct current voltage signal and a corresponding second low-voltage direct current voltage signal are transmitted to the main control module, then the compressor to be detected and the communication module are supplied with power to be operated, the main control module determines whether the voltage and the current of the alternating current transmitted to the compressor to be detected are abnormal according to preset detection parameters and detection results of the current detection module and the voltage detection module, and then the detected electric energy detection result, the first low-voltage direct current voltage signal and the second low-voltage direct current voltage signal are transmitted to the communication module as operation state data, the communication module can send the information to an external server, and a user can check the information received by the server through the client, so that the running state of the compressor to be detected can be determined, the running state of the compressor can be monitored and managed, and the problem of abnormal quick positioning when the compressor runs abnormally is facilitated.

2. In an embodiment of the invention, the body temperature of the body of the compressor to be detected and the ambient temperature of the working environment can be detected by the temperature detection module, so that the main control module determines whether the compressor to be detected operates abnormally or not according to the body temperature and determines whether the compressor to be detected is suitable for the current working environment or not according to the ambient temperature, and the abnormal operation of the compressor to be detected caused by overhigh or overlow body temperature and ambient temperature of the compressor to be detected is avoided.

3. In an embodiment of the invention, the voltage transformer monitors and measures the voltage of the alternating current in the way by utilizing the electromagnetic induction principle, determines a corresponding alternating voltage value, converts the alternating voltage value into a low-voltage isolation voltage signal in an isolation manner, and converts the low-voltage isolation voltage signal into a first low-voltage direct current voltage signal which can be identified by the main control module through the second conversion circuit, so that the main control module determines whether the voltage of the alternating current is abnormal or not through the second low-voltage direct current voltage signal.

4. In an embodiment of the present invention, the fixed frequency/variable frequency detection module may read a driving signal of a driving plate of the compressor to be detected, and the driving signal may determine whether the operation mode of the driving plate is the variable frequency mode or the fixed frequency mode, so as to read driving parameters, such as a rotation speed, corresponding to the compressor to be detected according to different operation modes, so that the main control module determines whether the operation of the compressor to be detected is abnormal according to the driving parameters.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Finally, it is to be noted that: the above description is only a preferred embodiment of the present invention, and is only used to illustrate the technical solutions of the present invention, and not to limit the protection scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.

Claims

1. A compressor running state data acquisition device is characterized by comprising: the device comprises an alternating current input module, a switching power supply module, a current detection module, a voltage detection module, a main control module and a communication module;

the communication module is used for sending the running state data to an external server when receiving the running state data, so that the client determines the running state of the compressor to be detected through the running state data received by the server;

the second conversion circuit is used for converting the low-voltage isolation voltage signal into a corresponding second low-voltage direct-current voltage signal and sending the first low-voltage direct-current voltage signal to the main control module when receiving the low-voltage isolation voltage signal;

the second conversion circuit includes: a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, an eighth resistor R8, a ninth resistor R9, a tenth resistor R10, an eleventh resistor R11, a second polar capacitor C3, a second capacitor C4 and a bridge rectifier UR;

a first end of the tenth resistor R10 is connected with the external live wire L, a second end of the tenth resistor R10 is connected with a first end of the eleventh resistor R11, and a second end of the eleventh resistor R11 is connected with a third end of the voltage transformer;

the first conversion circuit is used for converting the low-voltage isolation current signal into a corresponding first low-voltage direct-current voltage signal and sending the first low-voltage direct-current voltage signal to the main control module when receiving the low-voltage isolation current signal;

the first conversion circuit includes: the circuit comprises a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, an operational amplifier U2B, a rectifier diode D, a first capacitor C1 and a first polar capacitor C2;

2. The compressor operation state data acquisition apparatus as set forth in claim 1, further comprising: a temperature detection module;

3. The compressor operation state data acquisition apparatus as set forth in claim 1 or 2, further comprising: a fixed frequency/variable frequency detection module;

4. A method for acquiring running state data of a compressor is characterized by comprising the following steps:

through the communication module, when the running state data is received, the running state data is sent to an external server, so that a client determines the running state of the compressor to be detected through the running state data received by the server;

through the second conversion circuit, when the low-voltage isolation voltage signal is received, the low-voltage isolation voltage signal is converted into a corresponding second low-voltage direct-current voltage signal, and the first low-voltage direct-current voltage signal is sent to the main control module;

through the first conversion circuit, when the low-voltage isolation current signal is received, the low-voltage isolation current signal is converted into a corresponding first low-voltage direct-current voltage signal, and the first low-voltage direct-current voltage signal is sent to the main control module;

5. The compressor operation state data collection method as set forth in claim 4, further comprising:

6. The compressor operation state data collection method according to claim 4 or 5, further comprising:

7. A compressor operating condition data management system, comprising: the compressor running state data acquisition device, the server and the at least one client of any one of claims 1 to 3;