CN208656504U

CN208656504U - Detection circuit, control system and electrical equipment

Info

Publication number: CN208656504U
Application number: CN201821198562.1U
Authority: CN
Inventors: 雷龙; 宋泽琳; 高小丽; 冯维雄; 李进; 方明占; 杨中厦; 高梦莹; 郑俊超; 龙运林
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2018-07-25
Filing date: 2018-07-25
Publication date: 2019-03-26
Anticipated expiration: 2028-07-25

Abstract

The application relates to a detection circuit, a control system and electrical equipment, and belongs to the technical field of electrical equipment. The detection circuit of the application comprises: the detection module is used for detecting and outputting the signal output by the device to be detected so as to determine the instruction received by the device to be detected according to the output of the detection module. The detection circuit can be applied to DRED detection, when the detection circuit is applied to electrical equipment, the electrical equipment can be detected to DRED, and the command received by the DRED is obtained.

Description

Detection circuit, control system and electrical equipment

Technical Field

The application belongs to the technical field of electrical equipment, and particularly relates to a detection circuit, a control system and electrical equipment.

Background

In life, people can not leave the use of the electric equipment, and the electric equipment can bring convenience and comfort to the life of people. For example, the air conditioner can provide a comfortable indoor temperature environment to people. However, the use of a large amount of electrical equipment also brings huge pressure to the power grid load, for example, in summer, the total power used often exceeds the power grid load due to the use of various electrical equipment such as air conditioners by common people of thousands of households.

In some countries, such as australia, new zealand, etc., governments send commands to DRED, abbreviated as Demand Response Electrical Device, chinese: a command response device. The instructions sent by the government are instructions for controlling the operation of the electrical equipment, which requires that the electrical equipment must be capable of detecting the DRED, acquiring the instructions received by the DRED, and then operating according to the instructions.

Thus, there is a need for improvements in electrical equipment exported to these countries.

SUMMERY OF THE UTILITY MODEL

In order to meet the requirement that electrical equipment can detect the DRED and acquire an instruction received by the DRED, the application provides a detection circuit, a control system, the electrical equipment, a control method and a device.

In order to achieve the purpose, the following technical scheme is adopted in the application:

in a first aspect,

the application provides a detection circuit, includes:

the detection module is used for detecting and outputting the signal output by the device to be detected so as to determine the instruction received by the device to be detected according to the output of the detection module.

Further, the detection circuit further includes:

and the first resistors are connected with the detection module.

Further, the detection circuit further includes:

and secondary output ends of the plurality of isolation devices are connected with one ends of the plurality of first resistors in a one-to-one correspondence manner.

Further, the isolation device includes:

an optocoupler, or a multi-way switch.

Further, the detection circuit further includes:

and one ends of the second resistors are connected with the primary side input ends of the isolation devices in a one-to-one correspondence manner.

Further, the detection circuit further includes:

and the third resistor is connected in parallel with two ends of the primary side of the isolation device.

Further, the detection module only comprises: the detection unit is used for determining the instruction received by the device to be detected according to different detection values output by the detection unit; or,

the detection module comprises: and the detection units are used for determining the instruction received by the device to be detected according to the detection output port to which the detection value belongs when any detection unit of the detection units outputs the detection value.

Further, if the detection module comprises only one detection unit;

the plurality of first resistors are connected with the detection unit, and each of the plurality of first resistors has a different resistance value.

Further, if the detection module comprises a plurality of detection units;

the first resistors are respectively connected with the detection units in a one-to-one correspondence mode.

Further, the detection unit includes:

one end of the fourth resistor is connected with the other end of the first resistor, and the other end of the fourth resistor is grounded;

and the detection output end is connected with one end of the fourth resistor.

Further, the detection unit further includes:

and the first capacitor is connected in parallel with two ends of the fourth resistor.

Further, the detection value output by the detection module is a voltage value; and is

If the detection module only has one detection unit, the detection unit can output different voltage values, and the different voltage values are located in different voltage intervals.

Further, the detection circuit further includes:

and the power supply is connected with the device to be detected so as to enable the device to be detected to output the electric signal provided by the power supply according to the working channel.

Furthermore, the number of the working channels of the device to be detected is multiple, and when the device to be detected receives an instruction, the working channel corresponding to the instruction outputs a signal.

Further, the device to be detected is a command response device.

In a second aspect of the present invention,

the present application provides a control system comprising:

a detection circuit as claimed in any one of the preceding claims, and

and the controller is connected with the detection circuit and used for determining the instruction received by the device to be detected according to the output of the detection circuit and controlling the electrical equipment to enter the corresponding mode to work according to the determined instruction.

Further, if the detection circuit has only one detection unit, the controller is specifically configured to: determining an instruction received by the device to be detected according to different detection values output by the detection unit;

if the detection circuit comprises a plurality of detection units, the controller is specifically configured to: when any detection unit of the plurality of detection units outputs a detection value, determining the instruction received by the device to be detected according to the detection output port to which the detection value belongs.

In a third aspect,

the application provides an electrical apparatus, includes: a control system as described above.

Further, the electrical equipment is an air conditioner.

In a fourth aspect of the present invention,

the application provides an electrical equipment control method, which is applied to the electrical equipment, and the method comprises the following steps:

acquiring detection output, wherein the detection output is obtained after a device to be detected is detected;

determining an instruction received by the device to be detected according to the detection output;

and controlling the electrical equipment to enter a corresponding mode to work according to the determined instruction.

Further, if the detection circuit comprises only one detection cell;

the determining the instruction received by the device to be detected according to the detection output includes:

and determining the instruction received by the device to be detected according to different detection values output by the detection unit.

Further, if the detection circuit includes a plurality of detection cells;

when any detection unit of the plurality of detection units inputs a detection value, determining an instruction received by the device to be detected according to a detection output port to which the detection value belongs.

Furthermore, the device to be detected is provided with a plurality of working channels, and a relay is arranged in each working channel;

the device to be detected receives a plurality of instructions, and only one instruction is received at the same time;

and when the device to be detected receives the instruction, the instruction corresponds to the actuation of the relay in the working channel.

Further, the device to be detected is a DRED having a DRED1 channel, a DRED2 channel, a DRED3 channel, and a DRED0 channel;

the instructions received by the DRED include: a DRED1 instruction, a DRED2 instruction, a DRED3 instruction, or a DRED0 instruction.

Further, the method specifically comprises:

when the command received by the DRED is a DRED1 command, a relay of a DRED1 channel corresponding to the DRED1 command is attracted, the controller determines that the command received by the DRED is a DRED1 command according to the output of the detection circuit, and the controller controls the electrical equipment to enter a DRED1 mode to work according to the determined DRED1 command;

when the command received by the DRED is a DRED2 command, a relay of a DRED2 channel corresponding to the DRED2 command is attracted, the controller determines that the command received by the DRED is a DRED2 command according to the output of the detection circuit, and the controller controls the electrical equipment to enter a DRED2 mode to work according to the determined DRED2 command;

when the command received by the DRED is a DRED3 command, a relay of a DRED3 channel corresponding to the DRED3 command is attracted, the controller determines that the command received by the DRED is a DRED3 command according to the output of the detection circuit, and the controller controls the electrical equipment to enter a DRED3 mode to work according to the determined DRED3 command; or,

when the command received by the DRED is a DRED0 command, the DRED0 command indicates the relay of the corresponding DRED0 channel to suck, the controller determines that the command received by the DRED is a DRED0 command according to the output of the detection circuit, and controls the electrical equipment to enter a DRED0 mode to work according to the determined DRED0 command.

In a fifth aspect of the present invention,

the application provides an electrical equipment controlling means includes:

the acquisition module is used for acquiring detection output, and the detection output is obtained after the device to be detected is detected;

the determining module is used for determining the instruction received by the device to be detected according to the detection output;

and the control module is used for controlling the electrical equipment to enter a corresponding mode to work according to the determined instruction.

This application adopts above technical scheme, possesses following beneficial effect at least:

the detection circuit detects the signal output by the device to be detected through the detection module and outputs the signal to determine the instruction received by the device to be detected according to the output of the detection module, and when the detection circuit is applied to electrical equipment, the electrical equipment can detect the DRED and acquire the instruction received by the DRED.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

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

Fig. 1 is a schematic structural diagram of a detection circuit according to an embodiment of the present application;

FIG. 2 is a schematic diagram of a DRED communicating with a powered device;

FIG. 3 is a schematic diagram of a specific detection circuit according to an embodiment of the present application;

FIG. 4 is a schematic diagram of a specific detection circuit according to another embodiment of the present application;

FIG. 5 is a schematic structural diagram of a control system provided in an embodiment of the present application;

fig. 6 is a schematic structural diagram of an electrical apparatus according to an embodiment of the present application;

fig. 7 is a schematic flowchart of an electrical apparatus control method according to an embodiment of the present application;

fig. 8 is a schematic structural diagram of an electrical appliance control device according to an embodiment of the present application.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail below. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without making any creative effort, shall fall within the protection scope of the present application.

Fig. 1 is a schematic structural diagram of a detection circuit according to an embodiment of the present application, and as shown in fig. 1, the detection circuit 1 includes:

the detection module 11 is configured to detect and output a signal output by a device to be detected, so as to determine an instruction received by the device to be detected according to the output of the detection module.

Hereinafter, the present application will be described in detail with DRED as a specific device to be detected.

In some countries, such as australia, new zealand, etc., it is mandatory that appliances have the capability to communicate with DREDs. As shown in fig. 2, fig. 2 is a schematic diagram of a DRED in communication with an electrical device, the DRED having four working channels connected to the electrical device, each channel configured with a respective relay. The DRED device receives the signal and then controls the corresponding relay suction, only the relay suction in one working channel can be realized at the same time, the relay suction in different channels represents different working channels of the DRED, therefore, different working channels of the DRED correspond to different instructions received by the DRED, and different working channels and corresponding instructions form a one-to-one correspondence, such as:

DRED1 command, S1 Relay pull-in, which indicates load shutdown;

a DRED2 instruction, an S2 relay is closed, and the instruction indicates that the power consumption of the whole machine within 30min is less than or equal to 50% of rated power consumption;

a DRED3 instruction, an S3 relay is closed, and the instruction indicates that the power consumption of the whole machine within 30min is less than or equal to 75% of rated power consumption;

the DRED0 command, S4 and S5 relays pull in, the command indicates that the inverter is disconnected from the grid.

When a channel is in operation, the relay in the channel is attracted, so that an electric signal provided by the channel output power supply can be detected out of the DRED working channel according to the received electric signal, the command received by the DRED is correspondingly determined, and the electric equipment is controlled to operate, so that the purposes of reducing the load of a power grid and saving energy and power are achieved.

Fig. 3 is a schematic structural diagram of a specific detection circuit provided in an embodiment of the present application, and fig. 4 is a schematic structural diagram of a specific detection circuit provided in another embodiment of the present application.

In one embodiment, the number of the working channels of the device to be detected is multiple, and when the device to be detected receives an instruction, the working channel corresponding to the instruction outputs a signal. As shown in fig. 3 and 4, the DREDs have a plurality of working channels, and after receiving the command, the DREDs pull in the relay in the working channel corresponding to the command, so that the working channel corresponding to the command outputs a signal.

As shown in fig. 3 and 4, the roles of the respective devices in the detection circuit 1 shown in fig. 3 and 4 are listed as follows:

a plurality of first resistors (R11, R12, R13, and R14) connected to the detection module 11 and used as voltage dividing resistors.

And the secondary output ends of the plurality of isolation devices are connected with one end of the plurality of first resistors in a one-to-one correspondence mode (U1, U2, U3 and U4). The optical coupler, the multi-way switch and the like can be included, and the optical coupler is used as an isolating device in the figure 4. The isolation device can protect other devices, for example, if the level voltage of the DRED output dc signal is high, damage or interference may be caused to components of the electric equipment, and the isolation device can perform isolation conversion on the high level signal and output the low level signal to protect other devices.

And one ends of the second resistors are correspondingly connected with the primary side input ends of the isolation devices one by one, so that the current limiting protection effect is realized on the primary side input of the isolation devices.

And a third resistor (R31) used as a voltage dividing resistor, wherein the conduction of the primary side of the isolation device is limited by the voltage division of the third resistor. For the third resistor, as shown in fig. 3 and 4, some countries require that when the S4 relay is attracted and the S5 relay is not attracted, the corresponding channel does not work, i.e. the optical coupler U4 cannot work. In a specific application, for example, in fig. 3 and 4, R0 of DRED is a 15K Ω resistor, and the selection values of the resistor R24 and the resistor R31 need to be ensured: when S5 is not absorbed, a 15K omega resistor is connected in series into a circuit, the voltage at the R31 is necessarily smaller than the conduction voltage drop of a light emitting diode on the primary side of an optocoupler U4, and the series current is smaller than the conduction current of the light emitting diode; when S5 is attracted, the 15K omega resistor is short-circuited, the voltage at the R31 is required to be larger than the conduction voltage drop of the light emitting diode on the primary side of the optocoupler U4, and the series current is larger than the conduction current of the light emitting diode.

In fig. 3, the detection module 11 includes only one detection unit 101; in fig. 4, the detection module 11 includes a plurality of detection units 101 therein; the detection unit 101 includes:

and a fourth resistor (R40 in FIG. 3, R41, R42, R43 and R44 in FIG. 4), one end of which is connected to the other end of the first resistor, and the other end of which is grounded. The fourth resistor is used as a voltage dividing resistor.

The detection output terminal (OUT 0 in fig. 3, OUT1, OUT2, OUT3 and OUT4 in fig. 4) is connected to one end of the fourth resistor. And the other end of the fourth resistor is grounded, so that the voltage to ground can be output through the detection output end.

And a first capacitor (C0 in FIG. 3, and C1, C2, C3 and C4 in FIG. 4) is connected in parallel with two ends of the fourth resistor, and the first capacitor plays a role in filter protection.

As shown in fig. 3, the detection module 11 includes only one detection cell 101, and a plurality of the first resistors (R11, R12, R13, and R14) are respectively connected to the one detection cell 101. The function of the one detection unit 101 is to determine the instruction received by the device to be detected according to different detection values output by the one detection unit.

In order to achieve the above function, each of the first resistors (R11, R12, R13 and R14) is required to have a different resistance value, and since only one first resistor is powered at a time, the detection output terminal can output different voltage values when different first resistors are powered.

In a specific implementation, if the difference of the output voltage values is small, the error may occur in the DRED working channel distinguished by the controller according to the voltage values when the difference is transmitted to the controller for processing. To solve this problem, in one embodiment, if the detection module has only one detection unit, the one detection unit can output different voltage values, and the different voltage values are located in different voltage intervals.

It can be understood that different voltage values are located in different voltage intervals, so that the difference between the voltage values is large, the accuracy of identifying different voltages can be improved, and the accuracy of identifying a DRED working channel can be improved. In order to realize that different voltage values are located in different voltage intervals, a large difference is required between the different voltage values, which requires a certain difference in resistance values between the first resistors (R11, R12, R13 and R14).

In a specific application scenario, a practical application of the detection circuit of fig. 3 is taken as an example.

When the command received by the command response device is a DRED1 command, in the command response device, the DRED1 command instructs the relay S1 of the corresponding DRED1 channel to pull in, so that the DRED1 channel works, the detection circuit detects the working DRED1 channel, the detection output end OUT0 outputs a first pair of ground voltage values, and the DRED1 channel of the device to be detected can be determined according to the first pair of ground voltage values;

when the command received by the command response device is a DRED2 command, in the command response device, the DRED2 command instructs the relay S2 of the corresponding DRED2 channel to pull in, so that the DRED2 channel works, the detection circuit detects the working DRED2 channel, the detection output end OUT0 outputs a second voltage-to-ground voltage value, and the DRED2 channel of the device to be detected can be determined according to the second voltage-to-ground voltage value;

when the command received by the command response device is a DRED3 command, in the command response device, the DRED3 command instructs the relay S3 of the corresponding DRED3 channel to pull in, so that the DRED3 channel works, the detection circuit detects the working DRED3 channel, the detection output end OUT0 outputs a third voltage to ground, and the DRED3 channel of the device to be detected can be determined according to the third voltage to ground;

when the command received by the command response device is a DRED0 command, in the command response device, the DRED0 command instructs relays S4 and S5 of a corresponding DRED0 channel to pull in, so that the DRED0 channel operates, the detection circuit detects the operated DRED0 channel, the detection output end OUT0 outputs a fourth voltage to ground, and the DRED0 channel of the device to be detected can be determined according to the fourth voltage to ground.

As shown in fig. 4, the sensing module 11 includes a plurality of sensing units 101, and a plurality of first resistors (R11, R12, R13, and R14) are respectively connected to the plurality of sensing units 101 in a one-to-one correspondence manner. When any detection unit of the plurality of detection units outputs a detection value, the instruction received by the device to be detected can be determined according to the detection output port to which the detection value belongs.

It is understood that the embodiment is designed to determine the instruction received by the device to be detected according to the difference of the detection output ports.

In another specific application scenario, a practical application of the detection circuit of fig. 4 is taken as an example.

When the command received by the command response device is a DRED1 command, in the command response device, the DRED1 command is used for attracting a relay S1 of a corresponding DRED1 channel, so that the DRED1 channel works, the detection circuit detects the working DRED1 channel, the detection output end OUT1 outputs a voltage value, and the DRED1 channel of the device to be detected can be determined according to the detection output end OUT71 of the output voltage value;

when the command received by the command response device is a DRED2 command, in the command response device, the DRED2 command is used for attracting a relay S2 of a corresponding DRED2 channel, so that the DRED2 channel works, the detection output end OUT72 outputs a voltage value, and the DRED2 channel of the device to be detected can be determined according to the detection output end OUT2 outputting the voltage value;

when the command received by the command response device is a DRED3 command, in the command response device, the DRED3 command is used for attracting a relay S3 of a corresponding DRED3 channel, so that the DRED3 channel works, the detection output end OUT3 outputs a voltage value, and the DRED3 channel of the device to be detected can be determined according to the detection output end OUT73 outputting the voltage value;

when the command received by the command response device is a DRED0 command, in the command response device, the DRED0 command is attracted by relays S4 and S5 of a DRED0 channel corresponding to the DRED0 command, so that the DRED0 channel works, the detection circuit detects the working DRED0 channel, the detection output end OUT74 outputs a voltage value, and the DRED0 channel of the device to be detected can be determined according to the detection output end OUT4 outputting the voltage value.

As shown in fig. 3 and 4, the circuit further includes:

and the power supply 12 is connected with the device to be detected so that the device to be detected outputs an electric signal provided by the power supply 12 according to the working channel.

Fig. 5 is a schematic structural diagram of a control system according to an embodiment of the present application, and as shown in fig. 5, the control system 10 includes:

a detection circuit 1 as claimed in any one of the preceding claims, an

And the controller 2 is connected with the detection circuit 1 and is used for determining the instruction received by the device to be detected according to the output of the detection circuit 1 and controlling the electrical equipment to enter a corresponding mode to work according to the determined instruction.

Further, the air conditioner is provided with a fan,

if the detection circuit 1 has only one detection unit, the controller is specifically configured to: determining an instruction received by the device to be detected according to different detection values output by the detection unit;

if the detection circuit 1 comprises a plurality of detection units, the controller is specifically configured to: when any detection unit of the plurality of detection units outputs a detection value, determining the instruction received by the device to be detected according to the detection output port to which the detection value belongs.

With regard to the control system, the specific implementation thereof has been described in detail in the above related embodiments, and will not be elaborated herein.

Fig. 6 is a schematic structural diagram of an electrical apparatus according to an embodiment of the present application, and as shown in fig. 6, the electrical apparatus 100 includes:

a control system 10 as claimed in any one of the preceding claims.

Further, the electric device 100 is an air conditioner.

With regard to the electric device 100, the specific implementation thereof has been described in detail in the above related embodiments, and will not be elaborated herein.

Fig. 7 is a schematic flowchart of an electrical apparatus control method according to an embodiment of the present application, and as shown in fig. 7, the method is applied to the electrical apparatus described above, and the electrical apparatus control method includes the following steps:

s701, obtaining detection output, wherein the detection output is obtained after a device to be detected is detected;

step S702, determining an instruction received by the device to be detected according to the detection output;

and S703, controlling the electrical equipment to enter a corresponding mode to work according to the determined instruction.

Further, if the detection circuit comprises only one detection cell;

Further, if the detection circuit includes a plurality of detection cells;

Further, the method specifically comprises:

when the command received by the DRED is a DRED1 command, in the DRED, a relay of a DRED1 channel corresponding to the DRED1 command is attracted, so that the DRED1 channel works, the detection circuit detects and outputs the working DRED1 channel, the controller determines that the command received by the DRED is a DRED1 command according to the output of the detection circuit, and controls the electrical equipment to enter a DRED1 mode to work according to the determined DRED1 command;

when the command received by the DRED is a DRED2 command, in the DRED, a relay of a DRED2 channel corresponding to the DRED2 command is attracted, so that the DRED2 channel works, the detection circuit detects and outputs the working DRED2 channel, the controller determines that the command received by the DRED is a DRED2 command according to the output of the detection circuit, and controls the electrical equipment to enter a DRED2 mode to work according to the determined DRED2 command;

when the command received by the DRED is a DRED3 command, in the DRED, a relay of a DRED3 channel corresponding to the DRED3 command is attracted, so that the DRED3 channel works, the detection circuit detects and outputs the working DRED3 channel, the controller determines that the command received by the DRED is a DRED3 command according to the output of the detection circuit, and controls the electrical equipment to enter a DRED3 mode to work according to the determined DRED3 command; or,

when the command received by the DRED is a DRED0 command, in the DRED, a relay of a DRED0 channel corresponding to the DRED0 command is attracted, so that the DRED0 channel works, the detection circuit detects and outputs the working DRED0 channel, the controller determines that the command received by the DRED is a DRED0 command according to the output of the detection circuit, and controls the electrical equipment to enter a DRED0 mode to work according to the determined DRED0 command.

With regard to the above-mentioned electrical equipment control method, the specific implementation thereof has been described in detail in the above-mentioned related embodiments, and will not be elaborated herein.

Fig. 8 is a schematic structural diagram of an electrical appliance control device according to an embodiment of the present application, and as shown in fig. 8, the electrical appliance control device 8 includes:

an obtaining module 81, configured to obtain a detection output, where the detection output is obtained by detecting a device to be detected;

a determining module 82, configured to determine, according to the detection output, an instruction received by the device to be detected;

and the control module 83 is used for controlling the electrical equipment to enter the corresponding mode to work according to the determined instruction.

The specific implementation of the electrical equipment control device has been described in detail in the above related embodiments, and will not be elaborated herein.

It should be noted that the device to be detected in this application is not limited to DRED, but may also be other devices that can indicate various working channels through the actuation state of each relay.

It is understood that the same or similar parts in the above embodiments may be mutually referred to, and the same or similar parts in other embodiments may be referred to for the content which is not described in detail in some embodiments.

It should be noted that, in the description of the present application, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Further, in the description of the present application, the meaning of "a plurality" means at least two unless otherwise specified.

Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and the scope of the preferred embodiments of the present application includes other implementations in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present application.

It should be understood that portions of the present application may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.

It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.

In addition, functional units in the embodiments of the present application may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.

The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc.

In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," 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 application. In this specification, 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.

Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.

Claims

1. A detection circuit, comprising:

2. The circuit of claim 1, wherein the detection circuit further comprises:

and the first resistors are connected with the detection module.

3. The circuit of claim 2, wherein the detection circuit further comprises:

4. The circuit of claim 3, wherein the isolation device comprises:

an optocoupler, or a multi-way switch.

5. The circuit of claim 3, wherein the detection circuit further comprises:

6. The circuit of claim 3, wherein the detection circuit further comprises:

7. The circuit of claim 2,

the detection module only comprises: the detection unit is used for determining the instruction received by the device to be detected according to different detection values output by the detection unit; or,

8. The circuit of claim 7, wherein if the detection module comprises only one detection cell;

9. The circuit of claim 7, wherein if the detection module comprises a plurality of detection cells;

10. The circuit of claim 7, wherein the detection unit comprises:

and the detection output end is connected with one end of the fourth resistor.

11. The circuit of claim 10, wherein the detection unit further comprises:

12. The circuit of claim 7,

the detection value output by the detection module is a voltage value; and is

13. The circuit of claim 1, wherein the detection circuit further comprises:

14. The circuit of claim 1, wherein the number of the working channels of the device to be detected is multiple, and when the device to be detected receives a command, the working channel corresponding to the command outputs a signal.

15. A circuit according to any of claims 1-14, wherein the device to be detected is a command-responsive device.

16. A control system, comprising:

the detection circuit of any one of claims 1-15, and

17. The control system of claim 16,

if the detection circuit has only one detection unit, the controller is specifically configured to: determining an instruction received by the device to be detected according to different detection values output by the detection unit;

18. An electrical device, comprising: a control system as claimed in claim 16 or 17.

19. The electrical apparatus of claim 18, wherein the electrical apparatus is an air conditioner.