A kind of automatic control circuit and control method thereof

Abstract

The present invention discloses an automatic control circuit and a control method thereof, which relates to the technical field of temperature measurement methods, and includes an input circuit; a protection circuit connected to the output end of the input circuit; and a detection circuit connected to the protection circuit; wherein the input circuit includes an input end AC, a fuse block RD connected to the input end AC, and a switch S1 arranged at the other end of the fuse block RD; the voltage of the input end AC is 220V. The present invention can connect two sets of currents at the same time by using input current L1 and input current L2, and because of the use of a transmission management module CC, the input current L1 and the input current L2 can be identified and judged, and then according to the judgment result, a more stable current input is selected to ensure the stable operation of the entire circuit, and at the same time, it can also avoid the circuit load overload operation caused by large current fluctuations.

Description

Technical Field

[0001] The present invention relates to the technical field of temperature measurement methods, in particular to an automatic control circuit and a control method thereof. Background Art

[0002] In the prior art, some hydroelectric motors are capable of providing power outdoors. However, when in use, the temperature of the motors rises due to the influence of the outdoor environment. If the motors cannot be cooled down in time, they are easily damaged, causing additional troubles.

[0003] However, existing motors cannot identify their own temperature in time, and cannot guarantee whether the source of the temperature is due to the flow of current or the external ambient temperature. Therefore, it only requires human judgment, which most people do not have. As a result, the failure rate of motors remains high. Summary of the invention

[0004] In view of the problems existing in the existing automatic control and system based on temperature measurement components, the present invention is proposed.

[0005] Therefore, the problem to be solved by the present invention is that the motor cannot be cooled down in time.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0007] In a first aspect, an embodiment of the present invention provides an automation control circuit, which includes:

[0008] Input circuit;

[0009] a protection circuit connected to the output terminal of the input circuit, and;

[0010] A detection circuit connected to the protection circuit;

[0011] The input circuit includes an input terminal AC, a fuse block RD connected to the input terminal AC, and a switch S1 arranged at the other end of the fuse block RD;

[0012] The input circuit also includes an input current L1 and an input current L2, the output ports of the input current L1 and the input current L2 are respectively electrically connected to the inlet AC of the rectifier bridge D1, the rectifier bridge D1 is connected to the transmission management module CC, and the output terminal DC+ and the negative pole DC- of the rectifier bridge D1 supply power to the equipment operation circuit;

[0013] The voltage of the input terminal AC is 220V;

[0014] The transmission management module CC is used to judge the input current L1 and the input current L2, and initiate corresponding solutions according to the judgment result;

[0015] The determination method of the transmission management module CC includes:

[0016] Set the safety threshold XmA and set the time period Ymin to detect whether the input current L1 and the input current L2 exceed the set safety threshold XmA in the time period Ymin:

[0017] When only one of the input current L1 and the input current L2 meets the safety threshold value XmA, the switch corresponding to the input current L1 or the input current L2 that meets the safety threshold value XmA is turned on, so that the input current L1 or the input current L2 that meets the safety threshold value XmA supplies power to the unit machine U1;

[0018] When both the input current L1 and the input current L2 do not meet the safety threshold value XmA, an abnormal alarm is output and the switches corresponding to the input current L1 and the input current L2 are disconnected;

[0019] When both the input current L1 and the input current L2 meet the safety threshold value XmA, a secondary determination is performed on the input current L1 and the input current L2. The secondary determination method includes:

[0020] Take any three time points in the time period Ymin, and obtain the current amounts of the input current L1 and the input current L2 corresponding to the three time points, calculate the fluctuations of the current amounts of the input current L1 and the input current L2, take the input current L1 or the input current L2 with a smaller fluctuation, and turn on the corresponding switch, so that the input current L1 or the input current L2 supplies power to the unit machine U1;

[0021] Among them, the interval between the three time points is greater than Y / 5min.

[0022] As a preferred solution of the automation control circuit of the present invention, wherein: the protection circuit includes a normally open contact J1 connected to the switch S1, switches S2 arranged on both sides of the normally open contact J1, and an emergency circuit MY arranged on one side of the normally open contact J1;

[0023] The other end of the emergency loop MY is connected to the input end AC.

[0024] As a preferred solution of the automatic control circuit of the present invention, wherein: the detection circuit includes a voltage transformer P1 and a voltage transformer P2, and a resistor is connected between the voltage transformer P1 and the voltage transformer P2, the voltage transformer P1 is also connected to a capacitor C2, and then grounded, and a resistor R2 is set in the loop;

[0025] Among them, the resistor R2 is 47kΩ;

[0026] The outer end of the protection circuit is connected to the equipment operation circuit, wherein the equipment operation circuit includes a resistor R1, a capacitor C1, and a controlled source;

[0027] The equipment operation circuit also includes an equipment self-matching circuit, which is used for the operation of the equipment;

[0028] The device self-matching circuit includes a node V1, a node V2, a node V3, a node V4 and a node V5, and the node V2, the node V3, the node V4 and the node V5 are connected in parallel, and the node V1 is electrically connected to the node V2, the node V3, the node V4 and the node V5 one by one;

[0029] The voltage of the controlled source is the voltage difference between any two nodes among the nodes V2, V3, V4 and V5;

[0030] The output end of the input circuit is connected in parallel with the resistor R1, the capacitor C1 and the controlled source through the normally open contact J1, and the output ends of the resistor R1, the capacitor C1 and the controlled source are all connected to the input end of the device's self-matching circuit.

[0031] As a preferred solution of the automatic control circuit of the present invention, wherein: the detection circuit is used to control the pressing of the switch S2;

[0032] When the switch S2 is pressed, the 220V AC power supplies the equipment operation circuit through the fuse block RD, and the power supply of the equipment operation circuit connects the normally open contact J1 to achieve circuit self-locking;

[0033] When the circuit is self-locking, release switch S2 and still supply power to the running circuit;

[0034] When the power is off, the equipment operation circuit is disconnected, causing the normally open contact J1 to be disconnected, after which the equipment operation circuit stops running.

[0035] In a second aspect, an embodiment of the present invention provides a control method for an automation circuit, the method comprising:

[0036] After the input current L1 and the input current L2 are input to the inlet AC of the rectifier bridge D1, the input current L1 and the input current L2 are judged by the transmission management module CC, and the input current L1 or the input current L2 is selected according to the judgment result;

[0037] The determination method of the transmission management module CC includes:

[0038] Set the safety threshold XmA and set the time period Ymin to detect whether the input current L1 and the input current L2 exceed the set safety threshold XmA in the time period Ymin:

[0039] When only one of the input current L1 and the input current L2 meets the safety threshold value XmA, the switch corresponding to the input current L1 or the input current L2 that meets the safety threshold value XmA is turned on, so that the input current L1 or the input current L2 that meets the safety threshold value XmA supplies power to the unit machine U1;

[0040] When both the input current L1 and the input current L2 do not meet the safety threshold value XmA, an abnormal alarm is output and the switches corresponding to the input current L1 and the input current L2 are disconnected;

[0041] When both the input current L1 and the input current L2 meet the safety threshold value XmA, a secondary determination is performed on the input current L1 and the input current L2. The secondary determination method includes:

[0042] Take any three time points in the time period Ymin, and obtain the current amounts of the input current L1 and the input current L2 corresponding to the three time points, calculate the fluctuations of the current amounts of the input current L1 and the input current L2, take the input current L1 or the input current L2 with a smaller fluctuation, and turn on the corresponding switch, so that the input current L1 or the input current L2 supplies power to the unit machine U1;

[0043] Among them, the interval between the three time points is greater than Y / 5min.

[0044] As a preferred solution of the control method of the automation circuit of the present invention, the temperature information obtained by the detection circuit is judged, and the result of the external temperature is judged, and then the set temperature value L℃ is output according to the judgment result, wherein the judgment method includes:

[0045]

[0046] In the formula, Expressed as device temperature, It is expressed as the outside temperature;

[0047] The set temperature value L℃ is and not exceeding 40°C.

[0048] In a third aspect, an embodiment of the present invention provides an automatic control system based on a temperature measurement component, which includes a data storage module and a safety judgment module;

[0049] The data storage module is used to upload the calculated current data, work log and corresponding timestamp to the server and store them;

[0050] The safety judgment module is used to set the safety threshold of the transmission management module CC to ensure the safe operation of the entire circuit.

[0051] In a fourth aspect, an embodiment of the present invention provides a computer device, comprising a memory and a processor, wherein the memory stores a computer program, wherein: when the processor executes the computer program, any step of the above-mentioned automation circuit control method is implemented.

[0052] In a fifth aspect, an embodiment of the present invention provides a computer-readable storage medium having a computer program stored thereon, wherein: when the computer program is executed by a processor, any step of the above-mentioned method for controlling an automation circuit is implemented.

[0053] The beneficial effects of the present invention are as follows: by using the input current L1 and the input current L2, two groups of currents can be connected at the same time, and because of the use of the transmission management module CC, the input current L1 and the input current L2 can be identified and judged, and then according to the judgment result, a more stable current input is selected to ensure the stable operation of the entire circuit, and at the same time, it can also avoid the circuit load overload operation caused by large current fluctuations.

[0054] The use of the detection circuit can identify the external temperature and the equipment temperature at the same time, and can prevent problems with the motor based on the identified temperature difference. It can also determine whether the motor temperature rises due to the influence of the external temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0056] Figure 1 This is the structural diagram of the automation control circuit.

[0057] Figure 2 This is the detection circuit structure diagram of the automation control circuit.

[0058] Figure 3 This is the input circuit structure diagram of the automation control circuit. DETAILED DESCRIPTION

[0059] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the drawings of the specification. Obviously, the described embodiments are part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary persons in the art without creative work should fall within the scope of protection of the present invention.

[0060] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0061] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0062] The present invention is described in detail with reference to schematic diagrams. When describing the embodiments of the present invention, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0063] At the same time, in the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "upper, lower, inner and outer" are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first, second or third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0064] In the present invention, unless otherwise clearly specified and limited, the terms "install, connect, connect" should be understood in a broad sense, for example: it can be a fixed connection, a detachable connection or an integral connection; it can also be a mechanical connection, an electrical connection or a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0065] Example 1

[0066] Reference Figure 1~Figure 3 , is the first embodiment of the present invention, which provides an automatic control circuit, including:

[0067] Input circuit;

[0068] The input circuit includes input current L1 and input current L2. The output ports of input current L1 and input current L2 are electrically connected to the inlet AC of the rectifier bridge D1 respectively. The rectifier bridge D1 is connected to the transmission management module CC. The output terminal DC+ and the negative pole DC- of the rectifier bridge D1 supply power to the equipment operation circuit.

[0069] a protection circuit connected to the output terminal of the input circuit, and;

[0070] A detection circuit connected to the protection circuit;

[0071] The protection circuit includes a normally open contact J1 connected to the switch S1, switches S2 arranged on both sides of the normally open contact J1, and an emergency circuit MY arranged on one side of the normally open contact J1;

[0072] The other end of the emergency loop MY is connected to the input end AC.

[0073] The input circuit includes an input terminal AC, a fuse block RD connected to the input terminal AC, and a switch S1 arranged at the other end of the fuse block RD;

[0074] The voltage of the input terminal AC is 220V.

[0075] The detection circuit includes a voltage transformer P1 and a voltage transformer P2, and a resistor is connected between the voltage transformer P1 and the voltage transformer P2. The voltage transformer P1 is also connected to a capacitor C2 and then grounded. A resistor R2 is set on the loop.

[0076] Among them, the resistor R2 is 47kΩ;

[0077] The outer end of the protection circuit is connected to the equipment operation circuit, wherein the equipment operation circuit includes a resistor R1, a capacitor C1, and a controlled source;

[0078] The device self-matching circuit includes a node V1, a node V2, a node V3, a node V4 and a node V5, and the node V2, the node V3, the node V4 and the node V5 are connected in parallel, and the node V1 is electrically connected to the node V2, the node V3, the node V4 and the node V5 one by one;

[0079] The voltage of the controlled source is the voltage difference between any two nodes among the nodes V2, V3, V4 and V5;

[0080] like Figure 1As shown, the voltage of the controlled source is V2-V5, which means that it is determined by the voltage difference between any two nodes among the node V2, the node V3, the node V4 and the node V5. For example, when the voltage of the controlled source is determined by the node V3 and the node V4, the voltage of the controlled source is the voltage difference between V3 and the node V4. For another example, when the voltage of the controlled source is determined by the node V2 and the node V4, the voltage of the controlled source is the voltage difference between V2 and the node V4.

[0081] The device operation circuit also includes a device self-matching circuit, which is used for the operation of the device.

[0082] The detection circuit is used to control the pressing of switch S2;

[0083] When the switch S2 is pressed, the 220V AC power supplies the equipment operation circuit through the fuse block RD, and the power supply of the equipment operation circuit connects the normally open contact J1 to achieve circuit self-locking;

[0084] When the circuit is self-locking, release switch S2 and still supply power to the running circuit;

[0085] When the power is off, the equipment operation circuit is disconnected, causing the normally open contact J1 to be disconnected, after which the equipment operation circuit stops running.

[0086] In summary, by using input current L1 and input current L2, two sets of currents can be connected at the same time, and because of the use of the transmission management module CC, the input current L1 and the input current L2 can be identified and judged. Secondly, according to the judgment result, a more stable current input is selected to ensure the stable operation of the entire circuit. At the same time, it can also avoid the circuit load overload operation due to large current fluctuations.

[0087] The use of the detection circuit can identify the external temperature and the equipment temperature at the same time, and can prevent problems with the motor based on the identified temperature difference. It can also determine whether the motor temperature rises due to the influence of the external temperature.

[0088] Example 2

[0089] On the basis of the first embodiment, this embodiment further provides a control method for an automation circuit, comprising:

[0090] After the input current L1 and the input current L2 are input into the inlet AC of the rectifier bridge D1, the input current L1 and the input current L2 are judged by the transmission management module CC, and the input current L1 or the input current L2 is selected according to the judgment result;

[0091] The determination method of the transmission management module CC includes:

[0092] Set the safety threshold XmA and set the time period Ymin to detect whether the input current L1 and the input current L2 exceed the set safety threshold XmA in the time period Ymin:

[0093] When only one of the input current L1 and the input current L2 meets the safety threshold value XmA, the switch corresponding to the input current L1 or the input current L2 that meets the safety threshold value XmA is turned on, so that the input current L1 or the input current L2 that meets the safety threshold value XmA supplies power to the unit machine U1;

[0094] When both the input current L1 and the input current L2 do not meet the safety threshold value XmA, an abnormal alarm is output and the switches corresponding to the input current L1 and the input current L2 are disconnected;

[0095] When both the input current L1 and the input current L2 meet the safety threshold value XmA, a secondary determination is performed on the input current L1 and the input current L2. The secondary determination method includes:

[0096] Take any three time points in the time period Ymin, and obtain the current amounts of the input current L1 and the input current L2 corresponding to the three time points, calculate the fluctuations of the current amounts of the input current L1 and the input current L2, take the input current L1 or the input current L2 with a smaller fluctuation, and turn on the corresponding switch, so that the input current L1 or the input current L2 supplies power to the unit machine U1;

[0097] Among them, the interval between the three time points is longer than Y / 5min;

[0098] In this embodiment, the safety threshold XmA is set to 10mA.

[0099] The temperature information obtained by the detection circuit is judged on the result of the external temperature, and then the set temperature value L℃ is output according to the judgment result. The judgment method includes:

[0100]

[0101] In the formula, Expressed as device temperature, It is expressed as the outside temperature;

[0102] The set temperature value L℃ is and not exceeding 40°C.

[0103] Example 3

[0104] On the basis of the previous two embodiments, this embodiment further provides an automatic control system based on a temperature measurement component, including a data storage module and a safety judgment module;

[0105] The data storage module is used to upload the calculated current data, work log and corresponding timestamp to the server and store them;

[0106] The safety judgment module is used to set the safety threshold of the transmission management module CC to ensure the safe operation of the entire circuit.

[0107] This embodiment also provides a computer device suitable for the control method of an automation circuit, comprising a memory and a processor; the memory is used to store computer executable instructions, and the processor is used to execute the computer executable instructions to implement the control method of the automation circuit proposed in the above embodiment.

[0108] The computer device may be a terminal, and the computer device includes a processor, a memory, a communication interface, a display screen and an input device connected via a system bus. The processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The communication interface of the computer device is used to communicate with an external terminal in a wired or wireless manner, and the wireless manner can be achieved through WIFI, an operator network, NFC (near field communication) or other technologies. The display screen of the computer device may be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer device may be a touch layer covering the display screen, or a key, trackball or touchpad provided on the housing of the computer device, or an external keyboard, touchpad or mouse, etc.

[0109] This embodiment further provides a storage medium on which a computer program is stored. When the program is executed by a processor, the control method for an automation circuit as proposed in the above embodiment is implemented.

[0110] The storage medium proposed in this embodiment and the data storage method proposed in the above embodiment belong to the same inventive concept. The technical details not fully described in this embodiment can be found in the above embodiment, and this embodiment has the same beneficial effects as the above embodiment.

[0111] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the present invention.

Claims

1. An automatic control circuit, characterized in that: include, Input circuit; a protection circuit connected to the output terminal of the input circuit, and; A detection circuit connected to the protection circuit; The input circuit includes an input terminal AC, a fuse block RD connected to the input terminal AC, and a switch S1 arranged at the other end of the fuse block RD; The input circuit also includes an input current L1 and an input current L2, the output ports of the input current L1 and the input current L2 are electrically connected to the inlet AC of the rectifier bridge D1 respectively, the rectifier bridge D1 is connected to the transmission management module CC, and the positive output terminal DC+ and the negative output terminal DC- of the rectifier bridge D1 supply power to the equipment operation circuit; The voltage of the input terminal AC is 220V; The transmission management module CC is used to judge the input current L1 and the input current L2, and initiate corresponding solutions according to the judgment result; The determination method of the transmission management module CC includes: Set the safety threshold XmA and set the time period Ymin to detect whether the input current L1 and the input current L2 exceed the set safety threshold XmA in the time period Ymin: When only one of the input current L1 and the input current L2 meets the safety threshold value XmA, the switch corresponding to the input current L1 or the input current L2 that meets the safety threshold value XmA is turned on, so that the input current L1 or the input current L2 that meets the safety threshold value XmA supplies power to the unit machine U1; When both the input current L1 and the input current L2 do not meet the safety threshold value XmA, an abnormal alarm is output and the switches corresponding to the input current L1 and the input current L2 are disconnected; When both the input current L1 and the input current L2 meet the safety threshold value XmA, a secondary determination is performed on the input current L1 and the input current L2. The secondary determination method includes: Take any three time points in the time period Ymin, and obtain the current amounts of the input current L1 and the input current L2 corresponding to the three time points, calculate the fluctuations of the current amounts of the input current L1 and the input current L2, take the input current L1 or the input current L2 with a smaller fluctuation, and turn on the corresponding switch, so that the input current L1 or the input current L2 supplies power to the unit machine U1; Among them, the interval between the three time points is longer than Y / 5min; The protection circuit includes a normally open contact J1 connected to the switch S1, switches S2 arranged on both sides of the normally open contact J1, and an emergency circuit MY arranged on one side of the normally open contact J1; The other end of the emergency loop MY is connected to the input end AC.

2. The automatic control circuit according to claim 1, characterized in that: The detection circuit includes a voltage transformer P1 and a voltage transformer P2, and a resistor is connected between the voltage transformer P1 and the voltage transformer P2, and the voltage transformer P1 is also connected to a capacitor C2 and then grounded; The voltage transformer P2 is grounded through the resistor R2; Among them, the resistor R2 is 47kΩ; The outer end of the protection circuit is connected to the equipment operation circuit, wherein the equipment operation circuit includes a resistor R1, a capacitor C1, and a controlled source; The equipment operation circuit also includes an equipment self-matching circuit, which is used for the operation of the equipment; The device self-matching circuit includes a node V1, a node V2, a node V3, a node V4 and a node V5, and the node V2, the node V3, the node V4 and the node V5 are connected in parallel, and the node V1 is electrically connected to the node V2, the node V3, the node V4 and the node V5 one by one; The voltage of the controlled source is the voltage difference between any two nodes among the nodes V2, V3, V4 and V5; The output end of the input circuit is connected in parallel with the resistor R1, the capacitor C1 and the controlled source through the normally open contact J1, and the output ends of the resistor R1, the capacitor C1 and the controlled source are all connected to the input end of the device's self-matching circuit.

3. The automatic control circuit according to claim 2, characterized in that: The detection circuit is used to control the pressing of the switch S2; When the switch S2 is pressed, the 220V AC power supplies the equipment operation circuit through the fuse block RD, and the power supply of the equipment operation circuit connects the normally open contact J1 to achieve circuit self-locking; When the circuit is self-locking, release switch S2 and still supply power to the running circuit; When the power is off, the equipment operation circuit is disconnected, causing the normally open contact J1 to be disconnected, after which the equipment operation circuit stops running.

4. A control method applied to the automation control circuit according to any one of claims 1 to 3, the method comprising: After the input current L1 and the input current L2 are input to the inlet AC of the rectifier bridge D1, the input current L1 and the input current L2 are judged by the transmission management module CC, and the input current L1 or the input current L2 is selected according to the judgment result; in, The determination method of the transmission management module CC includes: Set the safety threshold XmA and set the time period Ymin to detect whether the input current L1 and the input current L2 exceed the set safety threshold XmA in the time period Ymin: When only one of the input current L1 and the input current L2 meets the safety threshold value XmA, the switch corresponding to the input current L1 or the input current L2 that meets the safety threshold value XmA is turned on, so that the input current L1 or the input current L2 that meets the safety threshold value XmA supplies power to the unit machine U1; When both the input current L1 and the input current L2 do not meet the safety threshold value XmA, an abnormal alarm is output and the switches corresponding to the input current L1 and the input current L2 are disconnected; When both the input current L1 and the input current L2 meet the safety threshold value XmA, a secondary determination is performed on the input current L1 and the input current L2. The secondary determination method includes: Take any three time points in the time period Ymin, and obtain the current amounts of the input current L1 and the input current L2 corresponding to the three time points, calculate the fluctuations of the current amounts of the input current L1 and the input current L2, take the input current L1 or the input current L2 with a smaller fluctuation, and turn on the corresponding switch, so that the input current L1 or the input current L2 supplies power to the unit machine U1; Among them, the interval between the three time points is greater than Y / 5min.

5. The control method of the automation control circuit according to claim 4, characterized in that: The temperature information obtained by the detection circuit is judged on the result of the external temperature, and then the set temperature value L℃ is output according to the judgment result. The judgment method includes: In the formula, Expressed as device temperature, It is expressed as the outside temperature; The set temperature value L℃ is The maximum value shall not exceed 40℃.

6. A multi-source power grid information fusion system based on the Internet of Things, based on the control method of the automation control circuit according to claim 4 or 5, characterized in that: It includes a data storage module and a safety judgment module; The data storage module is used to upload the calculated current data, work log and corresponding timestamp to the server and store them; The safety judgment module is used to set the safety threshold of the transmission management module CC to ensure the safe operation of the entire circuit.

7. A computer device comprising a memory and a processor, wherein the memory stores a computer program, wherein: When the processor executes the computer program, the steps of the control method of the automation control circuit according to claim 4 or 5 are implemented.

8. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the control method of the automation control circuit according to claim 4 or 5 are implemented.

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