CN115622871A - Bus load determination method, device, home appliance and storage medium - Google Patents

Abstract

The invention belongs to the technical field of communication, and discloses a bus load determination method, device, home appliance and storage medium. The invention discloses a bus load determination method for a main control board, the main control board is connected to a communication bus, and a plurality of load units are respectively connected to the communication bus through corresponding gating units, so that the communication in the communication bus When the state is abnormal, adjust the switching state of each gating unit according to the preset strategy; detect whether the communication state of the communication bus returns to normal; determine the abnormal load unit from each load unit according to the detection result. The corresponding gating unit is set in the communication bus and the load unit, so that when the communication status of the communication bus is detected to be abnormal, the switch state of each gating module can be adjusted according to the preset strategy, and the detection can be detected during the adjustment. The communication status of the communication bus, and finally determine the abnormal load unit according to the detection results, so as to accurately screen out the faulty load unit.

Description

Bus load determination method, device, home appliance and storage medium

technical field

The present invention relates to the field of communication technology, in particular to a bus load determination method, device, home appliance and storage medium.

Background technique

With the development and progress of science and technology, household appliances are gradually popularized in the daily life of ordinary families, and household appliances generally use bus technology for control and connection. The advantage of bus communication is that the communication link is simple, the transmission is efficient, and any load is directly connected to the master control and other loads. When a load fails: such as a short circuit, in addition to its own abnormal operation, it may also affect the communication on the bus and the operation of other loads. Therefore, the stability of the traditional bus structure depends too much on the hardware reliability of the system. If a load affects the communication on the bus, the entire system will be paralyzed. However, in the prior art, it is only possible to judge whether the bus is faulty through the level of the bus, but it cannot automatically determine and locate the specific faulty load.

The above content is only used to assist in understanding the technical solution of the present invention, and does not mean that the above content is admitted as prior art.

Contents of the invention

The main purpose of the present invention is to provide a bus load determination method, device, home appliance and storage medium, aiming to solve the technical problem that the prior art cannot automatically complete the fault location when the load fails.

In order to achieve the above object, the present invention provides a bus load determination method, the bus load determination method is used for the main control board, the main control board is connected to the communication bus, and a plurality of load units are connected to each other through corresponding gating units respectively. The communication bus is connected;

The method for determining the bus load includes:

When the communication status of the communication bus is abnormal, adjust the switching status of each gating unit according to a preset strategy;

Detecting whether the communication state of the communication bus returns to normal;

Determine the abnormal load unit from each load unit according to the detection result.

Optionally, when the communication status of the communication bus is abnormal, adjusting the switching status of each gating unit according to a preset strategy includes:

Obtaining the load identification number of each load unit when the communication state of the communication bus is abnormal;

determining the gate number of each gate unit according to the load identification number;

determining a preset strategy according to the load identification number and the gating number;

The switch state of each gating unit is adjusted according to the preset strategy.

Optionally, the determining a preset strategy according to the load identification number and the gating number includes:

determining the correspondence between each load unit and each gating unit according to the load identification number and the gating number;

determining the switching sequence of each gating unit according to the gating number and the corresponding relationship;

A preset strategy is determined according to the switching sequence, and the preset strategy includes a strategy of sequentially adjusting the switching states of the gate units corresponding to the normal load units to a connected state according to the switching sequence.

Optionally, before determining the preset strategy according to the switching sequence, it further includes:

Obtain the exception identification number record;

determining the recorded abnormal load identification number according to the abnormal identification number record;

determining a normal load identification number according to the abnormal load identification number and the load identification number;

A normal load unit is determined according to the normal load identification number.

Optionally, after determining the abnormal load unit from each load unit according to the detection result, it also includes:

Recording the load identification number of the abnormal load unit as the target identification number;

Updating the record of the abnormal identification number according to the target identification number, adjusting the switching state of each gating unit to an off state, and detecting the communication state of the communication bus.

Optionally, after updating the record of the abnormal identification number according to the target identification number, and adjusting the switch state of each gating unit to an off state, the method further includes:

determining the switching sequence of the abnormal load unit according to the target identification number and the switching sequence;

Determine the load unit to be restored and the load unit to be checked according to the switch sequence and the updated record of the abnormal identification number;

Adjust the switch state of the gating module corresponding to each load unit to be restored to a connected state, and adjust the switch state of the gating module corresponding to each load unit to be checked to an off state.

Optionally, when the communication status of the communication bus is abnormal, adjusting the switching status of each gating unit according to a preset strategy includes:

When the communication state of the communication bus is abnormal, adjusting the switching state of each gating unit to an off state;

Adjust the switching state of each gating unit according to a preset strategy.

In addition, in order to achieve the above object, the present invention also proposes a bus load determination device, the bus load determination device includes:

The gating control module is used to adjust the switch state of each gating unit according to a preset strategy when the communication state of the communication bus is abnormal;

A communication detection module, used to detect whether the communication state of the communication bus returns to normal;

The load determination module is used to determine the abnormal load unit from each load unit according to the detection result.

In addition, in order to achieve the above object, the present invention also proposes a household electrical appliance, which includes: a memory, a processor, and a bus load determination program stored in the memory and operable on the processor, the The bus load determination program is configured to implement the steps of the bus load determination method as described above.

In addition, in order to achieve the above object, the present invention also proposes a storage medium, on which a bus load determination program is stored, and when the bus load determination program is executed by a processor, the bus load determination method as described above is realized. step.

The bus load determination method of the present invention is used for the main control board, the main control board is connected to the communication bus, and a plurality of load units are respectively connected to the communication bus through corresponding gating units, so that the communication in the communication bus When the state is abnormal, adjust the switching state of each gating unit according to the preset strategy; detect whether the communication state of the communication bus returns to normal; determine the abnormal load unit from each load unit according to the detection result. In the present invention, a gating unit is set between the communication bus and each load unit, so that when the communication state of the communication bus is detected to be abnormal, the switch state of each gating module can be adjusted according to the preset strategy, and the Detect the communication status of the communication bus during adjustment, and finally determine the abnormal load unit according to the detection result, so as to accurately screen out the faulty load unit.

Description of drawings

FIG. 1 is a schematic structural diagram of a home appliance in a hardware operating environment involved in the solution of an embodiment of the present invention;

Fig. 2 is a schematic flow chart of an embodiment of the bus load determination method of the present invention;

3 is a schematic diagram of the communication bus system in an embodiment of the bus load determination method of the present invention;

Fig. 4 is a schematic diagram of the structure of the communication bus in an embodiment of the method for determining the bus load of the present invention;

FIG. 5 is a schematic flow chart of a second embodiment of the bus load determination method of the present invention;

FIG. 6 is a schematic flowchart of a third embodiment of the bus load determination method of the present invention;

FIG. 7 is a schematic diagram of a flow chart of determining an abnormal bus load in an embodiment of a method for determining a bus load according to the present invention;

FIG. 8 is a structural block diagram of the first embodiment of the bus load determination device of the present invention.

The realization of the purpose of the present invention, functional characteristics and advantages will be further described in conjunction with the embodiments and with reference to the accompanying drawings.

detailed description

It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

Referring to FIG. 1 , FIG. 1 is a schematic structural diagram of a home appliance in a hardware operating environment involved in the solution of an embodiment of the present invention.

As shown in FIG. 1 , the home appliance may include: a processor 1001 , such as a central processing unit (Central Processing Unit, CPU), a communication bus 1002 , a user interface 1003 , a network interface 1004 , and a memory 1005 . Wherein, the communication bus 1002 is used to realize connection and communication between these components. The user interface 1003 may include a display screen (Display), an input unit such as a keyboard (Keyboard), and the optional user interface 1003 may also include a standard wired interface and a wireless interface. The network interface 1004 may optionally include a standard wired interface and a wireless interface (such as a Wireless-Fidelity (Wi-Fi) interface). The memory 1005 may be a high-speed random access memory (Random Access Memory, RAM) memory, or a stable non-volatile memory (Non-Volatile Memory, NVM), such as a disk memory. Optionally, the memory 1005 may also be a storage device independent of the aforementioned processor 1001 .

Those skilled in the art can understand that the structure shown in FIG. 1 does not constitute a limitation on the home appliance, and may include more or less components than shown in the illustration, or combine some components, or arrange different components.

As shown in FIG. 1 , the memory 1005 as a storage medium may include an operating system, a network communication module, a user interface module, and a bus load determination program.

In the home appliance shown in Figure 1, the network interface 1004 is mainly used for data communication with the network server; the user interface 1003 is mainly used for data interaction with the user; the processor 1001 and the memory 1005 in the home appliance of the present invention can be set in In the home appliance, the home appliance invokes the bus load determination program stored in the memory 1005 through the processor 1001, and executes the method for determining the bus load provided in the embodiment of the present invention.

An embodiment of the present invention provides a method for determining a bus load. Referring to FIG. 2 , FIG. 2 is a schematic flowchart of a first embodiment of a method for determining a bus load according to the present invention.

In this embodiment, the bus load determination method is used for the main control board, the main control board and the communication bus, the main control board is connected to one end of the communication bus, the other end of the communication bus extends far away, and each load unit is connected to On the communication bus, a parallel structure is formed, and a corresponding gating unit is connected between each load unit and the communication bus, that is, one end of the gating unit is connected to the load unit, and the other end is connected to the communication bus.

Referring to Fig. 3, Fig. 3 is a schematic diagram of a communication bus system, the bus communication system includes: the method for determining the bus load is used for a main control board, the main control board is connected to the communication bus, and a plurality of load units are respectively selected by corresponding The communication unit is connected to the communication bus;

The method for determining the bus load includes:

Step S10: When the communication status of the communication bus is abnormal, adjust the switching status of each gating unit according to a preset strategy.

It should be noted that the execution subject of the method in this embodiment may be a main control board with functions of data processing, network communication, and program operation, or other devices or devices capable of realizing the same or similar functions. Here, the above-mentioned main control board is referred to as Example to illustrate.

It should be understood that the gating unit may be a unit that controls the connection or disconnection of the circuit between the load unit and the communication bus, and specifically may be any type of switch or gating unit that can realize this function, which is not limited in this embodiment . Further, the gating unit controls whether the corresponding load unit is connected to the communication bus based on the received external signal. The above-mentioned external signal is a signal sent by the main control board to each gating unit. In a specific connection, each gating unit Wires can be connected to the main control board respectively, so that the signal sent by the main control board can not be received through the communication bus, so as to avoid that when the fault signal of the faulty load is raised or lowered, the communication bus is occupied and cannot be directly sent to the main control board through the communication bus. Each gating unit sends an external signal.

In a specific implementation, the preset strategy controls the disconnection and connection of each gating module by the main control board, thereby controlling the strategy of each load unit on the communication bus.

It should be noted that the main control board sends control signals to each gating unit according to the preset strategy; each gating module determines the corresponding signal type according to the control signal, and connects or disconnects each load unit and connection of the communication bus.

It should be understood that the main control board monitors whether the communication status is abnormal in real time, and then adjusts the switching status of each gating module according to a preset strategy when the communication status is abnormal.

It should be noted that the switching state of each gating unit refers to the connected state or disconnected state of each gating unit. The gating module can receive the control signal sent by the main control board and identify the signal type, and then perform Any module for adjusting the switch state can be any integrated unit module with signal processing capability and with relays or switches.

Step S20: Detect whether the communication state of the communication bus returns to normal.

In a specific implementation, after the main control board sends the control signal, whenever the switch state of a gating unit changes, the communication state of the communication bus is detected and recorded in real time. Thereby it is determined whether the communication state returns to normal when the switch state is adjusted. Wherein, whether the communication bus returns to normal is judged according to the level.

It should be understood that the preset strategy may be a strategy for sequentially adjusting the switching states of the gating units corresponding to the normal load units obtained after screening. When some load units fail to send electrical signals to the bus, the main control board sends control signals, and each gating unit adjusts the switch state according to the control signals. Specifically, the gating units are adjusted to the connected state in turn. When a gating module is adjusted to the connected state and the communication status of the communication bus is normal, it is determined that the load unit corresponding to the gating module is normal; when a module is adjusted When it is in the connected state, when the communication state of the communication bus changes from a normal state to an abnormal state, it is determined that the load unit corresponding to the gating module is a faulty load unit.

Step S30: Determine the abnormal load unit from each load unit according to the detection result.

In the specific implementation, as shown in Fig. 4 is a schematic diagram of the structure of the communication bus, the main control board is connected in parallel on the communication bus, and four load units numbered 1, 2, 3, 4 are attached. Wherein, gating modules A, B, C, and D are correspondingly arranged at positions between the communication bus and the four load units. The main control board determines the gating modules A, B, and C that need to adjust the switch state according to the preset strategy, and first connects the gating module A, that is, connects the connection between the load unit 1 and the communication bus. If the communication status does not return to normal, it is determined that load unit 1 is an abnormal load unit; if the communication status of the communication bus returns to normal at this time, keep the gating module A connected, and continue to connect the gating module B, that is, the load unit 2 is connected at this time For the connection with the communication bus, if the communication state of the communication bus does not return to normal at this time, it is determined that the load unit 2 is an abnormal load unit. And by analogy, when the communication state of the communication bus changes from a normal state to an abnormal state when a certain gating module is connected, the load unit corresponding to the gating module is an abnormal load unit.

In this embodiment, a gating unit is set between the communication bus and each load unit, so that when an abnormality is detected in the communication state of the communication bus, the switch state of each gating module can be adjusted according to a preset strategy, and the During the adjustment, the communication state of the communication bus is detected, and finally the abnormal load unit is determined according to the detection result, so as to accurately screen out the faulty load unit.

Referring to FIG. 5 , FIG. 5 is a schematic flowchart of a second embodiment of a method for determining a bus load according to the present invention.

Based on the above-mentioned first embodiment, the bus load determination method of this embodiment includes in the step S10:

Step S101: Obtain the load identification number of each load unit when the communication status of the communication bus is abnormal.

It should be noted that the load identification number refers to the hardware identification number corresponding to each load unit connected to the communication bus, which can be the hardware identification number of each load unit itself, or the pre-stored on the main control board The number assigned to the load unit. Wherein, the load identification number corresponding to each load unit is different, so the load identification number can distinguish the difference of each load unit.

Step S102: Determine the gate number of each gate unit according to the load identification number.

It should be understood that when the load identification number is obtained, the gating unit corresponding to each load unit is given a number based on the load identification number, that is, the gating number is obtained. Wherein, the gate number corresponding to each gate module is also different, and each gate module corresponds to a unique gate number which is different from other gate numbers.

Step S103: Determine a preset policy according to the load identification number and the gating number.

In a specific implementation, after the load identification number and the gating number of the gating module are determined, the corresponding relationship between each load unit and each gating unit is determined. Then determine the switching sequence according to the gate number and the corresponding relationship. Among them, the switching sequence means that all load units are numbered and sorted in a fixed sequence. The specific switching sequence sorting rule can be that when the main control board of the slave communication bus is disconnected, the loads are sorted from near to far to the other end. The order of the units, or other preset numbering orders, is not limited in this embodiment.

It should be noted that the preset strategy may be to sequentially adjust the switching state of the gate unit corresponding to the normal load unit among the load units to the connected state according to the switching sequence. That is, firstly adjust the gating module corresponding to the normal load unit with sequence 1 to be connected, then adjust the gating module corresponding to the normal load unit with sequence 2 to be connected, and so on.

It should be understood that before setting the preset strategy according to the switching sequence, the record of the abnormal identification number is also obtained, and then the abnormal load identification number recorded in the abnormal load identification number is determined. Wherein, the abnormal identification number record is a pre-stored record file that records the load identification numbers corresponding to the detected abnormal load units, and all the load identification numbers that have been recorded by the abnormal identification numbers are used as abnormal load identification numbers. Then use the load identification number that is not the abnormal load identification number as the normal load identification number, and finally use the load unit corresponding to the normal load identification number as the normal load unit. By determining the normal load unit and setting the preset strategy to sequentially adjust the gating modules corresponding to each normal load unit to the connected state according to the switching sequence, it is possible to record after an abnormal load unit is determined. Then adjust the switch state of the gating unit again, only connecting the normal load unit, not connecting the abnormal load unit, so that multiple rounds of fault checking of the load unit can be carried out, thereby determining multiple faulty load units on the communication bus. Since the abnormal load unit will be determined according to the detection result, only the gating module corresponding to the normal load unit will be connected in the next round of troubleshooting, and it can be determined whether there are other abnormal load units according to the detection result again until all load units Do an investigation.

Step S104: Adjust the switch state of each gating unit according to the preset strategy.

In the specific implementation, after the preset strategy is determined, the main control board sends control signals to each gating unit according to the preset strategy, so that each gating module can adjust the switch state according to the control signal, and then detect the status of the communication bus in real time. The communication status is obtained, and the detection result is obtained, and finally the abnormal load unit is determined according to the detection result. After determining the abnormal load unit, record the load identification number of the abnormal load unit as the target identification number, and then add the target identification number to the record of the abnormal identification number to realize the real-time update of the abnormal identification number record, that is, whenever a new The abnormal load unit is to update the record of the abnormal identification number, so that the normal load unit is also updated, and the next time the switching strategy of the gating module is adjusted according to the preset strategy, the same abnormal load unit will not be determined.

It should be noted that after the record of the abnormal identification number is updated, all the gating units will be disconnected, that is, the connection between the load unit and the communication bus will be disconnected. Then you can continue to detect the communication status of the bus, so that the same abnormal load unit will not be detected.

It should be understood that the load units connected to the communication bus are all replaceable and detachable load units, so when the abnormal load unit is replaced, the replacement load unit connected to the communication bus is firstly used as a normal load unit, and then Executing the steps beginning with S10 makes it possible to automatically detect whether the replacement load unit is faulty after the new load unit is replaced.

In a specific implementation, after adjusting the switching states of all gating units to the off state, determine the specific order of the abnormal load unit in the switching sequence, for example: the 48th load unit in the switching order of 50 . Then determine the load unit to be restored and the load unit to be checked. Specifically, when the switch order is the last one in the switch sequence, that is, when the abnormal load unit is the last load unit calculated according to the switch sequence on the communication bus, the All normal load units are regarded as load units to be restored, and all recorded abnormal load units are regarded as load units to be checked. After determining the load unit to be restored and the load unit to be checked, adjust the gating modules corresponding to all the load units to be recovered to the connected state, and adjust the gating modules corresponding to all the load units to be checked to the disconnected state to realize In order to eliminate all abnormal load units, and restore all load units that have not failed to connect to the communication bus and operate normally, so that the load units that have failed will not affect the normal operation of the load units that are normally used.

In this embodiment, the preset strategy is determined by the load identification number of the load unit and the gate number of the gate module, so as to accurately control the switch state of each gate unit, so that the main control board can accurately control the load based on the load identification number and the gate number. The control signal is sent to control each gating module, so that the troubleshooting of the faulty load unit is more accurate and faster.

Referring to FIG. 6 , FIG. 6 is a schematic flowchart of a third embodiment of a method for determining a bus load according to the present invention.

Based on the above-mentioned first embodiment, the bus load determination method of this embodiment includes in the step S10:

Step S11: When the communication status of the communication bus is abnormal, adjust the switch status of each gating unit to an off status.

It should be noted that, when it is detected that the communication bus is in an abnormal state, each gate unit is firstly disconnected. And when the communication status of the communication bus is abnormal, all the load units are first disconnected from the communication bus to prevent the failed load unit from affecting the communication bus and other load units and causing greater damage to the entire communication bus system.

Step S12: Adjust the switching state of each gating unit according to a preset strategy.

It should be understood that after the switch state of each gating unit is adjusted to the off state, the switch state of each gating unit is adjusted according to the preset strategy, so that the investigation of the abnormal load unit is completed, as shown in FIG. 7 in this implementation The process of determining the bus abnormal load based on the scheme of the example, firstly all the load units work normally, when the communication status is found to be abnormal, first disconnect all the gating modules, then connect the normal load units one by one and judge whether the communication is back to normal , record the abnormal load identification number when it does not return to normal, and disconnect all the gating modules again, start the next round of connection one by one and check the faulty load unit. After returning to normal, determine whether the normal load unit that returns to normal is the last priority, and if so, complete the troubleshooting.

In this embodiment, when the communication state of the communication bus is found to be abnormal, the switch state of each gating unit is first adjusted to the disconnected state, so as to prevent the faulty load unit from affecting the communication bus and other load units and causing further damage to the entire communication bus system. big damage.

In addition, an embodiment of the present invention also proposes a storage medium, on which a bus load determination program is stored, and when the bus load determination program is executed by a processor, the steps of the method for determining the bus load as described above are implemented.

Since the storage medium adopts all the technical solutions of all the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here.

Referring to FIG. 8 , FIG. 8 is a structural block diagram of a first embodiment of an apparatus for determining a bus load according to the present invention.

As shown in FIG. 8, the device for determining the bus load proposed by the embodiment of the present invention includes:

The gating control module 10 is configured to adjust the switch state of each gating unit according to a preset strategy when the communication state of the communication bus is abnormal.

It should be noted that the execution subject of the method in this embodiment may be a main control board with functions of data processing, network communication, and program operation, or other devices or devices capable of realizing the same or similar functions. Here, the above-mentioned main control board is referred to as Example to illustrate.

It should be understood that the gating unit may be a unit that controls the connection or disconnection of the circuit between the load unit and the communication bus, and specifically may be any type of switch or gating unit that can realize this function, which is not limited in this embodiment . Further, the gating unit controls whether the corresponding load unit is connected to the communication bus based on the received external signal. The above-mentioned external signal is a signal sent by the main control board to each gating unit. In a specific connection, each gating unit Wires can be connected to the main control board respectively, so that the signal sent by the main control board can not be received through the communication bus, so as to avoid that when the fault signal of the faulty load is raised or lowered, the communication bus is occupied and cannot be directly sent to the main control board through the communication bus. Each gating unit sends an external signal.

In a specific implementation, the preset strategy controls the disconnection and connection of each gating module by the main control board, thereby controlling the strategy of each load unit on the communication bus.

It should be noted that the main control board sends control signals to each gating unit according to the preset strategy; each gating module determines the corresponding signal type according to the control signal, and connects or disconnects each load unit and connection of the communication bus.

It should be understood that the main control board monitors whether the communication status is abnormal in real time, and then adjusts the switching status of each gating module according to a preset strategy when the communication status is abnormal.

It should be noted that the switching state of each gating unit refers to the connected state or disconnected state of each gating unit. The gating module can receive the control signal sent by the main control board and identify the signal type, and then perform Any module for adjusting the switch state can be any integrated unit module with signal processing capability and with relays or switches.

It should be noted that the load identification number refers to the hardware identification number corresponding to each load unit connected to the communication bus, which can be the hardware identification number of each load unit itself, or the pre-stored on the main control board The number assigned to the load unit. Wherein, the load identification number corresponding to each load unit is different, so the load identification number can distinguish the difference of each load unit.

It should be understood that when the load identification number is obtained, the gating unit corresponding to each load unit is given a number based on the load identification number, that is, the gating number is obtained. Wherein, the gate number corresponding to each gate module is also different, and each gate module corresponds to a unique gate number which is different from other gate numbers.

In a specific implementation, after the load identification number and the gating number of the gating module are determined, the corresponding relationship between each load unit and each gating unit is determined. Then determine the switching sequence according to the gate number and the corresponding relationship. Among them, the switching sequence means that all load units are numbered and sorted in a fixed sequence. The specific switching sequence sorting rule can be that when the main control board of the slave communication bus is disconnected, the loads are sorted from near to far to the other end. The order of the units, or other preset numbering orders, is not limited in this embodiment.

It should be noted that the preset strategy may be to sequentially adjust the switching state of the gate unit corresponding to the normal load unit among the load units to the connected state according to the switching sequence. That is, firstly adjust the gating module corresponding to the normal load unit with sequence 1 to be connected, then adjust the gating module corresponding to the normal load unit with sequence 2 to be connected, and so on.

It should be understood that before setting the preset strategy according to the switching sequence, the record of the abnormal identification number is also obtained, and then the abnormal load identification number recorded in the abnormal load identification number is determined. Wherein, the abnormal identification number record is a pre-stored record file that records the load identification numbers corresponding to the detected abnormal load units, and all the load identification numbers that have been recorded by the abnormal identification numbers are used as abnormal load identification numbers. Then use the load identification number that is not the abnormal load identification number as the normal load identification number, and finally use the load unit corresponding to the normal load identification number as the normal load unit. By determining the normal load unit and setting the preset strategy to sequentially adjust the gating modules corresponding to each normal load unit to the connected state according to the switching sequence, it is possible to record after an abnormal load unit is determined. Then adjust the switch state of the gating unit again, only connecting the normal load unit, not connecting the abnormal load unit, so that multiple rounds of fault checking of the load unit can be carried out, thereby determining multiple faulty load units on the communication bus. Since the abnormal load unit will be determined according to the detection result, only the gating module corresponding to the normal load unit will be connected in the next round of troubleshooting, and it can be determined whether there are other abnormal load units according to the detection result again until all load units Do an investigation.

In the specific implementation, after the preset strategy is determined, the main control board sends control signals to each gating unit according to the preset strategy, so that each gating module can adjust the switch state according to the control signal, and then detect the status of the communication bus in real time. The communication status is obtained, and the detection result is obtained, and finally the abnormal load unit is determined according to the detection result. After determining the abnormal load unit, record the load identification number of the abnormal load unit as the target identification number, and then add the target identification number to the record of the abnormal identification number to realize the real-time update of the abnormal identification number record, that is, whenever a new The abnormal load unit is to update the record of the abnormal identification number, so that the normal load unit is also updated, and the next time the switching strategy of the gating module is adjusted according to the preset strategy, the same abnormal load unit will not be determined.

It should be noted that after the record of the abnormal identification number is updated, all the gating units will be disconnected, that is, the connection between the load unit and the communication bus will be disconnected. Then you can continue to detect the communication status of the bus, so that the same abnormal load unit will not be detected.

It should be understood that the load units connected to the communication bus are all replaceable and detachable load units, so when the abnormal load unit is replaced, the replacement load unit connected to the communication bus is firstly used as a normal load unit, and then Executing the steps beginning with S10 makes it possible to automatically detect whether the replacement load unit is faulty after the new load unit is replaced.

In a specific implementation, after adjusting the switching states of all gating units to the off state, determine the specific order of the abnormal load unit in the switching sequence, for example: the 48th load unit in the switching order of 50 . Then determine the load unit to be restored and the load unit to be checked. Specifically, when the switch order is the last one in the switch sequence, that is, when the abnormal load unit is the last load unit calculated according to the switch sequence on the communication bus, the All normal load units are regarded as load units to be restored, and all recorded abnormal load units are regarded as load units to be checked. After determining the load unit to be restored and the load unit to be checked, adjust the gating modules corresponding to all the load units to be recovered to the connected state, and adjust the gating modules corresponding to all the load units to be checked to the disconnected state to realize In order to eliminate all abnormal load units, and restore all load units that have not failed to connect to the communication bus and operate normally, so that the load units that have failed will not affect the normal operation of the load units that are normally used.

It should be noted that, when it is detected that the communication bus is in an abnormal state, each gate unit is firstly disconnected. And when the communication status of the communication bus is abnormal, all the load units are first disconnected from the communication bus to prevent the failed load unit from affecting the communication bus and other load units and causing greater damage to the entire communication bus system.

It should be understood that after the switch state of each gating unit is adjusted to the off state, the switch state of each gating unit is adjusted according to the preset strategy, so that the investigation of the abnormal load unit is completed, as shown in FIG. 7 in this implementation The process of determining the bus abnormal load based on the scheme of the example, firstly all the load units work normally, when the communication status is found to be abnormal, first disconnect all the gating modules, then connect the normal load units one by one and judge whether the communication is back to normal , record the abnormal load identification number when it does not return to normal, and disconnect all the gating modules again, start the next round of connection one by one and check the faulty load unit. After returning to normal, determine whether the normal load unit that returns to normal is the last priority, and if so, complete the troubleshooting.

The communication detection module 20 is used to detect whether the communication state of the communication bus returns to normal.

In a specific implementation, after the main control board sends the control signal, whenever the switch state of a gating unit changes, the communication state of the communication bus is detected and recorded in real time. Thereby it is determined whether the communication state returns to normal when the switch state is adjusted. Wherein, whether the communication bus returns to normal is judged according to the level.

It should be understood that the preset strategy may be a strategy for sequentially adjusting the switching states of the gating units corresponding to the normal load units obtained after screening. When some load units fail to send electrical signals to the bus, the main control board sends control signals, and each gating unit adjusts the switch state according to the control signals. Specifically, the gating units are adjusted to the connected state in turn. When a gating module is adjusted to the connected state and the communication status of the communication bus is normal, it is determined that the load unit corresponding to the gating module is normal; when a module is adjusted When it is in the connected state, when the communication state of the communication bus changes from a normal state to an abnormal state, it is determined that the load unit corresponding to the gating module is a faulty load unit.

The load determination module 30 is configured to determine an abnormal load unit from each load unit according to the detection result.

In the specific implementation, as shown in Fig. 4 is a schematic diagram of the structure of the communication bus, the main control board is connected in parallel on the communication bus, and four load units numbered 1, 2, 3, 4 are attached. Wherein, gating modules A, B, C, and D are correspondingly arranged at positions between the communication bus and the four load units. The main control board determines the gating modules A, B, and C that need to adjust the switch state according to the preset strategy, and first connects the gating module A, that is, connects the connection between the load unit 1 and the communication bus. If the communication status does not return to normal, it is determined that load unit 1 is an abnormal load unit; if the communication status of the communication bus returns to normal at this time, keep the gating module A connected, and continue to connect the gating module B, that is, the load unit 2 is connected at this time For the connection with the communication bus, if the communication state of the communication bus does not return to normal at this time, it is determined that the load unit 2 is an abnormal load unit. And by analogy, when the communication state of the communication bus changes from a normal state to an abnormal state when a certain gating module is connected, the load unit corresponding to the gating module is an abnormal load unit.

It should be understood that the above is only an example, and does not constitute any limitation to the technical solution of the present invention. In specific applications, those skilled in the art can make settings according to needs, and the present invention is not limited thereto.

In this embodiment, by setting a gating unit between the communication bus and each load unit, when an abnormality is detected in the communication state of the communication bus, the switch state of each gating module can be adjusted according to a preset strategy, and the Detect the communication status of the communication bus during adjustment, and finally determine the abnormal load unit according to the detection result, so as to accurately screen out the faulty load unit.

Since the device adopts all the technical solutions of the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here.

It should be noted that the workflow described above is only illustrative and does not limit the protection scope of the present invention. In practical applications, those skilled in the art can select part or all of them to implement according to actual needs. The purpose of the scheme of this embodiment is not limited here.

In addition, for technical details not described in detail in this embodiment, reference may be made to the method for determining a bus load provided in any embodiment of the present invention, which will not be repeated here.

Furthermore, it should be noted that in this document, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article or system comprising a set of elements includes not only those elements, but also other elements not expressly listed, or elements inherent in such a process, method, article, or system. Without further limitations, an element defined by the phrase "comprising a..." does not preclude the presence of additional identical elements in the process, method, article or system comprising that element.

The serial numbers of the above embodiments of the present invention are for description only, and do not represent the advantages and disadvantages of the embodiments.

Through the description of the above embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus a necessary general-purpose hardware platform, and of course also by hardware, but in many cases the former is better implementation. Based on such an understanding, the essence of the technical solution of the present invention or the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product is stored in a storage medium (such as a read-only memory (Read Only Memory) , ROM)/RAM, magnetic disk, optical disk), including several instructions to make a terminal device (which can be a mobile phone, computer, server, or network device, etc.) execute the methods described in various embodiments of the present invention.

The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process conversion made by using the description of the present invention and the contents of the accompanying drawings, or directly or indirectly used in other related technical fields , are all included in the scope of patent protection of the present invention in the same way.

Claims (10)

1. A bus load determination method, characterized in that, the bus load determination method is used for a main control board, and the main control board is connected with a communication bus, and a plurality of load units communicate with the communication bus through corresponding gating units respectively bus connection; The method for determining the bus load includes: When the communication status of the communication bus is abnormal, adjust the switching status of each gating unit according to a preset strategy; Detecting whether the communication state of the communication bus returns to normal; Determine the abnormal load unit from each load unit according to the detection result. 2. The method according to claim 1, wherein, when the communication status of the communication bus is abnormal, adjusting the switching status of each gating unit according to a preset strategy comprises: Obtaining the load identification number of each load unit when the communication state of the communication bus is abnormal; determining the gate number of each gate unit according to the load identification number; determining a preset strategy according to the load identification number and the gating number; The switch state of each gating unit is adjusted according to the preset strategy. 3. The method according to claim 2, wherein said determining a preset strategy according to said load identification number and said gating number comprises: determining the correspondence between each load unit and each gating unit according to the load identification number and the gating number; determining the switching sequence of each gating unit according to the gating number and the corresponding relationship; A preset strategy is determined according to the switching sequence, and the preset strategy includes a strategy of sequentially adjusting the switching states of the gate units corresponding to the normal load units to a connected state according to the switching sequence. 4. The method according to claim 3, further comprising: before determining the preset strategy according to the switching sequence: Obtain the exception identification number record; determining the recorded abnormal load identification number according to the abnormal identification number record; determining a normal load identification number according to the abnormal load identification number and the load identification number; A normal load unit is determined according to the normal load identification number. 5. The method according to claim 4, wherein after determining the abnormal load unit from each load unit according to the detection result, further comprising: Recording the load identification number of the abnormal load unit as the target identification number; Updating the record of the abnormal identification number according to the target identification number, adjusting the switching state of each gating unit to an off state, and detecting the communication state of the communication bus. 6. The method according to claim 5, wherein, after updating the record of the abnormal identification number according to the target identification number, and adjusting the switch state of each gating unit to an off state, further comprising: determining the switching sequence of the abnormal load unit according to the target identification number and the switching sequence; Determine the load unit to be restored and the load unit to be checked according to the switch sequence and the updated record of the abnormal identification number; Adjust the switch state of the gating module corresponding to each load unit to be restored to a connected state, and adjust the switch state of the gating module corresponding to each load unit to be checked to an off state. 7. The method according to any one of claims 1 to 6, wherein, when the communication status of the communication bus is abnormal, adjusting the switching status of each gating unit according to a preset strategy includes: When the communication state of the communication bus is abnormal, adjusting the switching state of each gating unit to an off state; Adjust the switching state of each gating unit according to a preset strategy. 8. A bus load determining device, characterized in that, said bus load determining device comprises: The gating control module is used to adjust the switch state of each gating unit according to a preset strategy when the communication state of the communication bus is abnormal; A communication detection module, used to detect whether the communication state of the communication bus returns to normal; The load determination module is used to determine the abnormal load unit from each load unit according to the detection result. 9. A household electrical appliance, characterized in that the household electrical appliance comprises: a memory, a processor, and a bus load determination program stored on the memory and operable on the processor, the bus load determination program configured In order to realize the method for determining bus load as described in any one of claims 1 to 7. 10. A storage medium, characterized in that a bus load determination program is stored on the storage medium, and when the bus load determination program is executed by a processor, the bus load determination according to any one of claims 1 to 7 is realized method.

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