Bus valve control device, method, controller, bus valve system and storage medium

Abstract

The present disclosure provides a bus valve control device, method, controller, bus valve system, and storage medium, relating to the field of hydraulic technology. The bus valve control device disclosed herein includes: a power supply control device configured to disconnect the power supply circuit of the bus valve based on a first control signal from the controller; and a controller configured to determine the state of the network between the controller and the bus valve and, in the event of a network anomaly, send a first control signal to the power supply control device. Such a bus valve control device can promptly disconnect the power supply to the bus valve when an anomaly occurs in the communication between the bus valve and the controller, thereby preventing accidents caused by the difficulty of the control signal reaching the bus valve and improving the safety of the bus valve application.

Description

Technical Field

[0001] The present disclosure relates to the field of hydraulic technology, and in particular to a bus valve control device, method, controller, bus valve system and storage medium. Background Art

[0002] The bus valve integrates highly integrated mechanical, electrical, and hydraulic technologies, achieving internal closed-loop control of the drive signal and valve core movement. This improves the mechanical control system in terms of dynamic and static accuracy, efficiency, operability, and energy conservation. The bus valve provides highly precise flow and pressure control, enabling the actuator to achieve highly accurate speed and displacement according to input requirements.

[0003] Traditional proportional valves are controlled directly by a PWM (Pulse Width Modulation) signal from an onboard controller, or by controlling a pilot oil circuit to actuate the valve spool. Bus valve control uses a flow or displacement signal sent from the bus port of the onboard controller as input. The output is a signal generated by the bus valve integrated circuit board, which dynamically adjusts the flow or displacement to meet the requirements of the onboard controller.

[0004] The bus valve spool can become stuck, which can easily cause vehicle damage if uncontrolled. Related technologies use a method to detect spool displacement sticking by comparing the output signal with the output of the boom attitude sensor. If there is no output signal, and the boom attitude continuously changes, protection is activated to prevent vehicle damage or other accidents caused by spool displacement sticking. Summary of the Invention

[0005] One object of the present disclosure is to improve the safety of bus valve applications.

[0006] According to one aspect of some embodiments of the present disclosure, a bus valve control device is proposed, including: a power supply control device, configured to disconnect the power supply circuit of the bus valve according to a first control signal from a controller; a controller, configured to determine the status of the network between the controller and the bus valve, and send a first control signal to the power supply control device in the event of a network abnormality.

[0007] In some embodiments, the power supply control device is also configured to connect the power supply circuit of the bus valve according to a second control signal from the controller; the controller is also configured to send a second control signal to the power supply control device when the time length after disconnecting the power supply circuit of the bus valve is greater than or equal to a first predetermined time length.

[0008] In some embodiments, the apparatus further includes: a flameout control device configured to control the flameout of the device equipped with the bus valve according to a third control signal from the controller; the controller is further configured to send a third control signal to the flameout control device when the network between the controller and the bus valve is abnormal and the power supply circuit is disconnected more than or equal to a predetermined number of times.

[0009] In some embodiments, the apparatus further includes: an alarm device configured to issue an alarm message based on a fourth control signal from the controller; the controller is further configured to: obtain a displacement indication sent to the bus valve, and a displacement feedback from the bus valve; determine, based on a preset correspondence between the displacement indication and the displacement feedback, whether the difference between the relationship between the displacement indication sent to the bus valve and the displacement feedback from the bus valve and the preset correspondence is within a preset difference range; if the difference exceeds the preset difference range, send a fourth control signal to the alarm device.

[0010] In some embodiments, the controller is further configured to send a fourth control signal to the alarm device when the network between the controller and the bus valve is abnormal and the number of disconnections of the power supply circuit is greater than or equal to a predetermined number of times.

[0011] In some embodiments, the preset corresponding relationship is a relationship curve; the controller is configured to: determine the standard displacement feedback corresponding to the displacement indication of the bus valve on the relationship curve; determine the absolute value of the difference between the displacement feedback from the bus valve and the standard displacement feedback; compare the absolute value with the preset difference threshold, and if the absolute value is greater than the preset difference threshold, send a fourth control signal to the alarm device.

[0012] In some embodiments, the power supply control device includes a switch located on the power supply circuit, and a relay that controls the switch; the relay is configured to control the switch on the power supply circuit to open according to a first control signal, and to control the switch on the power supply circuit to close according to a second control signal.

[0013] In some embodiments, the controller is configured to determine a status of a network between the controller and the bus valve by monitoring the bus network between the controller and the bus valve.

[0014] According to one aspect of some embodiments of the present disclosure, a bus valve control method is proposed, including: determining the state of a network between a controller and a bus valve; and controlling a power supply circuit of the bus valve to disconnect when the network is abnormal.

[0015] In some embodiments, the method further includes: controlling the power supply circuit of the bus valve to be connected when the time length after the power supply circuit of the bus valve is disconnected is greater than or equal to a first predetermined time length.

[0016] In some embodiments, the method further includes: when the network between the controller and the bus valve is abnormal and the number of disconnections of the power supply circuit is greater than or equal to a predetermined number of times, controlling the equipment equipped with the bus valve to shut down.

[0017] In some embodiments, the method further includes: obtaining a displacement indication sent to the bus valve and a displacement feedback from the bus valve, wherein the bus valve performs a displacement operation after receiving the displacement indication, determines the displacement based on the displacement amount, and sends the displacement feedback; based on a preset correspondence between the displacement indication and the displacement feedback, determines whether the difference between the relationship between the displacement indication sent to the bus valve and the displacement feedback from the bus valve and the preset correspondence is within a preset difference range; if the difference exceeds the preset difference range, controlling the alarm device to issue an alarm message.

[0018] In some embodiments, the method further includes: controlling the alarm device to issue an alarm message when it is determined that the network between the controller and the bus valve is abnormal and the number of disconnections of the power supply circuit is greater than or equal to a predetermined number of times.

[0019] In some embodiments, the preset corresponding relationship is a relationship curve; based on the preset corresponding relationship between the displacement indication and the displacement feedback, it is determined whether the difference between the relationship between the displacement indication sent to the bus valve and the displacement feedback from the bus valve and the preset corresponding relationship is within a preset difference range; if the difference exceeds the preset difference range, the alarm device is controlled to issue an alarm message, including: determining the standard displacement feedback corresponding to the displacement indication of the bus valve on the relationship curve; determining the absolute value of the difference between the displacement feedback from the bus valve and the standard displacement feedback; comparing the absolute value with the preset difference threshold; if the absolute value is greater than the preset difference threshold, the alarm device is controlled to issue an alarm message.

[0020] According to one aspect of some embodiments of the present disclosure, a bus valve controller is provided, comprising: a memory; and a processor coupled to the memory, wherein the processor is configured to execute any one of the above bus valve control methods based on instructions stored in the memory.

[0021] According to one aspect of some embodiments of the present disclosure, a non-transitory computer-readable storage medium is provided, on which computer program instructions are stored. When the instructions are executed by a processor, the steps of any one of the bus valve control methods described above are implemented.

[0022] According to one aspect of some embodiments of the present disclosure, a bus valve system is proposed, comprising: any one of the bus valve control devices described above; and a bus valve configured to communicate with the bus valve control device through a network and obtain electrical energy through a power supply circuit controlled by the bus control device.

[0023] In some embodiments, the bus valve is further configured to perform a displacement operation according to a displacement instruction from the bus valve control device, determine a displacement amount after the displacement operation, and generate and send displacement feedback according to the displacement amount. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings described herein are used to provide a further understanding of the present disclosure and constitute a part of the present disclosure. The exemplary embodiments of the present disclosure and their descriptions are used to explain the present disclosure and do not constitute an improper limitation of the present disclosure. In the drawings:

[0025] Figure 1 Schematic diagrams of some embodiments of the bus valve control device disclosed herein.

[0026] Figure 2 Schematic diagrams of other embodiments of the bus valve control device disclosed in the present invention.

[0027] Figure 3 Flowcharts of some embodiments of the bus valve control method disclosed herein.

[0028] Figure 4 Flowcharts of other embodiments of the bus valve control method disclosed herein.

[0029] Figure 5A Flowcharts of some further embodiments of the bus valve control method disclosed herein.

[0030] Figure 5B Schematic diagrams of some embodiments of relationship curves in the bus valve control method disclosed in the present invention.

[0031] Figure 6 Schematic diagrams of some embodiments of the bus valve controller of the present disclosure.

[0032] Figure 7 Schematic diagrams of other embodiments of the bus valve controller disclosed herein.

[0033] Figure 8 Schematic diagrams of some embodiments of the bus valve system disclosed herein.

[0034] Figure 9 Schematic diagrams of other embodiments of the bus valve system disclosed herein. DETAILED DESCRIPTION

[0035] The technical solution of the present disclosure is further described in detail below through the accompanying drawings and examples.

[0036] The inventors found that the bus valve relies on the vehicle bus network communication and is integrated and controlled by the internal module. When the bus network is abnormal, the valve control signal cannot be controlled normally, which may cause the danger of vehicle overrun.

[0037] In response to the above problems, the present disclosure proposes a bus valve control device, which can cut off control in time to protect the vehicle from damage when problems such as the bus valve control line, bus valve chip, and bus valve spool become stuck.

[0038] Schematic diagrams of some embodiments of the bus valve control device 11 disclosed in the present invention are as follows Figure 1 As shown, it includes a controller 101 and a power supply control device 102.

[0039] The controller 101 determines the status of the network between the controller and the bus valve, and sends a first control signal to the power supply control device in the event of a network anomaly. In some embodiments, the controller 101 is capable of obtaining the information transmission status on the network between the controller and the bus valve, such as monitoring the heartbeat signal on the network, or monitoring the feedback information of the bus valve on the network in response to the roll call instruction of the controller 101. In the event that the heartbeat signal is interrupted or the interruption duration exceeds the predetermined duration, or the feedback information of the bus valve in response to the roll call instruction cannot be monitored, the network is determined to be abnormal, thereby triggering the execution of the operation of sending the first control signal. In some embodiments, the above-mentioned predetermined time length can be set and adjusted as needed, such as setting and adjusting according to the set heartbeat signal cycle length or roll call cycle length, for example, 1 to 3 heartbeat signal cycles.

[0040] The power supply control device 102 can disconnect the power supply circuit of the bus valve in response to a first control signal from the controller. In some embodiments, the power supply control device 102 can be an electromagnetic relay switch located in the bus valve control circuit, comprising a switch located in the power supply circuit and a relay that controls the switch. In some embodiments, the relay can control the switch in the power supply circuit to open in response to the first control signal, thereby disconnecting power to the bus valve.

[0041] Such a bus valve control device can promptly disconnect the power supply of the bus valve when an abnormality occurs in the communication between the bus valve and the controller, preventing the bus valve from changing the valve core displacement state, avoiding accidents caused by the control signal having difficulty reaching the bus valve, and improving the safety of the bus valve application.

[0042] In some embodiments, the power supply control device 102 can disconnect the power supply circuit for a predetermined period of time. If the duration of time after the power supply control device 102 disconnects the power supply circuit of the bus valve is greater than or equal to a first predetermined period of time, the controller 101 sends a second control signal to the power supply control device. The power supply control device 102 then reconnects the power supply circuit of the bus valve in accordance with the second control signal from the controller. In some embodiments, the first predetermined period of time is 0.5 to 5 seconds, and in some embodiments, the first predetermined period of time is 1 second.

[0043] Such a bus valve control device can restore the working state in time, avoid long-term shutdown, and ensure work efficiency; in addition, through a single power-off-on operation, it can solve some network failure problems, play a role in equipment troubleshooting operations, and improve equipment troubleshooting efficiency.

[0044] In some embodiments, the bus valve control device 21 is as follows Figure 2 As shown, the controller 201 and the power supply control device 202 can be Figure 1 The bus valve control device further includes a flameout control device 203.

[0045] In some embodiments, after the power supply control device 202 connects the power supply circuit of the bus valve according to the second control signal from the controller 201, the controller 201 continues to perform the operation of monitoring the network status between the controller and the bus valve, and counts the number of times the power supply circuit is disconnected from the last time node to the current time node.

[0046] In some embodiments, if the power supply circuit is disconnected less than a predetermined number of times, the first control signal is sent again to cause the power supply control device 202 to disconnect the power supply circuit. In some embodiments, if the power supply circuit is disconnected more than or equal to a predetermined number of times, the controller 201 sends a third control signal to the flameout control device 203, and the flameout control device 203 controls the device (such as a vehicle) equipped with the bus valve to shut down according to the third control signal from the controller 201. In some embodiments, the previous time node can be the moment when the device was last ignited, or the moment after the last network fault was eliminated, or the previous moment with a time interval of a predetermined length from the current moment. In some embodiments, the predetermined number of times can be 2 to 5 times. In some embodiments, the predetermined number of times can be set to 2 times.

[0047] Such a bus valve control device can, after disconnecting the power supply circuit multiple times, shut down in time when a network failure occurs again, thereby avoiding repeated cycles of power outages and power supplies, further improving the safety of equipment equipped with bus valves, and avoiding further failures and accidents; in addition, it can try to troubleshoot the fault through network connection and disconnection through multiple power outages and power supplies, and stop working in time if the fault cannot be eliminated after multiple attempts, which is conducive to improving the efficiency and comprehensiveness of troubleshooting.

[0048] In addition, the inventors found that in addition to communication network failures, the uncontrolled valve core displacement caused by the failure of the integrated module in the bus valve is also a failure condition that is difficult to eliminate in the relevant technology, and this type of condition can also cause dangerous actions.

[0049] In some embodiments, as Figure 2 As shown, the bus valve control device may further include an alarm device 204 .

[0050] When controller 201 sends a displacement indication to a bus valve, the bus valve, upon receiving the displacement indication, performs a displacement operation and determines the displacement amount. Based on the displacement amount, the bus valve generates and sends displacement feedback to controller 201. Based on the displacement indication sent to the bus valve and the displacement feedback received from the bus valve, controller 201 determines whether the difference between the displacement indication sent to the bus valve and the displacement feedback received from the bus valve and a preset corresponding relationship is within a preset difference range. If the difference exceeds the preset difference range, controller 201 sends a fourth control signal to alarm device 204. In some embodiments, an ideal displacement feedback corresponding to the displacement indication can be determined based on the displacement indication of the bus valve and the preset corresponding relationship. The ideal displacement feedback is then compared with the displacement feedback received from the bus valve to determine the difference between the two and determine whether the difference is within the preset difference range.

[0051] The warning device 204 can send out warning information when receiving the fourth control signal. In some embodiments, the warning information can be sent out in the form of indicator light, ring tone, voice notification, etc., or send prompt information to predetermined equipment (such as control, maintenance personnel's terminal, etc.).

[0052] Such a bus valve control device can promptly detect the failure of the integrated module in the bus valve, avoid safety hazards caused by the mismatch between the displacement operation of the bus valve and the control instructions of the controller, and issue an alarm in time, thereby reducing the probability of danger and further improving the safety of bus valve applications.

[0053] In some embodiments, when the controller determines to shut down the equipment equipped with the bus valve, it can also send a fourth control signal to the alarm device, causing the alarm device 204 to issue an alarm message, thereby improving the timeliness of the discovery of equipment failures and improving the efficiency of equipment fault troubleshooting.

[0054] The flowcharts of some embodiments of the bus valve control method disclosed in the present invention are as follows: Figure 3 shown.

[0055] In step 311, the status of the network between the controller and the bus valves is determined. In some embodiments, the controller may monitor the network status. In some embodiments, the controller may monitor a heartbeat signal on the network or feedback from the bus valves on the network in response to roll call instructions from the controller.

[0056] In step 312, a determination is made as to whether a network anomaly has occurred. If so, step 313 is executed; otherwise, the network status between the controller and the bus valve continues to be monitored. In some embodiments, a network anomaly is determined if the heartbeat signal is interrupted or the interruption duration exceeds a predetermined time, or if feedback from the bus valve in response to a roll call command is not monitored.

[0057] In step 313, the power supply circuit of the bus valve is disconnected. In some embodiments, the disconnection of the switch can be controlled by sending a control signal to a switch on the power supply circuit. In some embodiments, the electromagnetic relay of the switch on the power supply circuit can be controlled to send a first control signal to disconnect the power supply circuit.

[0058] Through this method, the power supply of the bus valve can be disconnected in time when an abnormality occurs in the communication between the bus valve and the controller, preventing the bus valve from changing the valve core displacement state, avoiding accidents caused by the control signal having difficulty reaching the bus valve, and improving the safety of the bus valve application.

[0059] Flowcharts of other embodiments of the bus valve control method disclosed herein are as follows: Figure 4 shown.

[0060] In step 411 , the status of the network between the controller and the bus valve is monitored and determined.

[0061] In step 412, it is determined whether the network is abnormal based on the monitoring result. If it is determined that the network is abnormal, step 413 is executed. Otherwise, this control ends or returns to step 411.

[0062] In step 413, it is determined whether the number of power supply circuit disconnections is greater than or equal to a predetermined number. In some embodiments, the counting operation can be based on a previous time point as the starting time. In some embodiments, the previous time point can be the time when the device was last powered on, the time after the last network fault was resolved, or a previous time point with a predetermined time interval from the current time point.

[0063] If the number of disconnections of the power supply circuit is greater than or equal to the predetermined number, step 417 is executed; if the number of disconnections of the power supply circuit is less than the predetermined number, step 414 is executed.

[0064] In step 414 , the power supply circuit controlling the bus valve is disconnected, and then step 415 is executed.

[0065] In step 415, it is determined whether the time length after the power supply circuit is disconnected is greater than or equal to the first predetermined time length. If the time length after the power supply circuit is disconnected is greater than or equal to the first predetermined time length, step 416 is executed; otherwise, the disconnected state is maintained.

[0066] In step 416 , the power supply circuit is turned on, and the process returns to step 411 .

[0067] In step 417 , an alarm message is issued and the equipment equipped with the bus valve is controlled to shut down.

[0068] Such a bus valve control method can restore the working state in time, avoid long-term shutdown, and ensure work efficiency; after disconnecting the power supply circuit multiple times, it can shut down the engine in time when a network failure occurs again, thereby avoiding entering a repeated cycle of power outage and power supply, further improving the safety of equipment equipped with bus valves, and avoiding further failures and accidents; in addition, it can try to troubleshoot the fault through network connection and disconnection through multiple power outages and power supply operations, and stop working in time if the fault cannot be eliminated after multiple attempts, which is conducive to improving the efficiency and comprehensiveness of troubleshooting.

[0069] Flowcharts of some other embodiments of the bus valve control method disclosed herein are as follows: Figure 5A shown.

[0070] In step 521 , the controller obtains a displacement instruction sent by itself to the bus valve, and obtains displacement feedback generated after the bus valve performs a displacement operation according to the displacement instruction.

[0071] In step 522, the controller determines the difference between the relationship between the displacement indication sent to the bus valve and the displacement feedback from the bus valve and the preset corresponding relationship based on the preset corresponding relationship between the displacement indication and the displacement feedback. In some embodiments, the preset corresponding relationship between the displacement indication and the displacement feedback can be as follows: Figure 5B As shown in FIG, in some embodiments, the horizontal axis represents the controller output, namely, the displacement indication, and the vertical axis represents the displacement feedback of the bus valve. This figure is for illustrative purposes only and does not constitute an undue limitation of the present application. In some embodiments, the units of the displacement indication and the displacement feedback may differ. For example, the displacement indication may be a percentage, while the displacement feedback may be a scalar value corresponding to the displacement vector. In some embodiments, a curve with a preset correspondence relationship can be generated based on the performance of the bus valve, and then the preset correspondence relationship can be stored in the controller.

[0072] In some embodiments, in some embodiments, the ideal displacement feedback corresponding to the displacement indication can be determined based on the displacement indication of the bus valve and the preset correspondence, and then the ideal displacement feedback is compared with the displacement feedback from the bus valve to determine the absolute value of the difference between the two.

[0073] In step 523 , the absolute value is compared with a preset upper limit of error. If the absolute value is less than or equal to the preset upper limit of error, it is determined that the current working state is normal. If the absolute value is greater than the preset upper limit of error, step 524 is executed.

[0074] In some embodiments, the displacement indication can be fitted with the displacement feedback F (反馈) =F (输出) ±K curve, where K is the tolerance range. When the output and feedback are within the tolerance range, no alarm is issued, otherwise step 524 is executed.

[0075] In step 524, the alarm device is controlled to issue an alarm message.

[0076] Through this method, the problem of integrated module failure in the bus valve can be discovered in time, the safety hazard caused by the mismatch between the displacement operation of the bus valve and the control instructions of the controller can be avoided, and timely alarm can be given, thereby reducing the probability of danger and further improving the safety of bus valve application.

[0077] The structural diagram of an embodiment of the controller of the bus valve disclosed in the present invention is as follows: Figure 6 As shown, the bus valve controller includes a memory 601 and a processor 602. The memory 601 can be a disk, flash memory, or any other non-volatile storage medium. The memory is used to store instructions corresponding to the above-described bus valve control method embodiments. The processor 602 is coupled to the memory 601 and can be implemented as one or more integrated circuits, such as a microprocessor or microcontroller. The processor 602 is used to execute the instructions stored in the memory, thereby improving the safety of bus valve applications.

[0078] In one embodiment, it is also possible to Figure 7 As shown, bus valve controller 700 includes memory 701 and processor 702. Processor 702 is coupled to memory 701 via BUS 703. Bus valve controller 700 can also be connected to an external storage device 705 via a storage interface 704 to access external data, and can also be connected to a network or another computer system (not shown) via a network interface 706. A detailed description is omitted here.

[0079] In this embodiment, the data instructions are stored in the memory and then processed by the processor, thereby improving the safety of the bus valve application.

[0080] In another embodiment, a computer-readable storage medium stores computer program instructions thereon, which, when executed by a processor, implement the steps of the method in the corresponding embodiment of the bus valve control method. Those skilled in the art will appreciate that the embodiments of the present disclosure may be provided as methods, apparatus, or computer program products. Therefore, the present disclosure may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present disclosure may take the form of a computer program product implemented on one or more computer-usable non-transitory storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0081] Schematic diagrams of some embodiments of the bus valve system 80 of the present disclosure are shown in FIG. Figure 8 shown.

[0082] The bus valve control device 81 can be any one of the ones mentioned above.

[0083] The bus valve 82 can communicate with the bus valve control device via a network and obtain power from a power supply circuit controlled by the bus valve control device. In some embodiments, the bus valves targeted by this disclosure can be manufactured by companies such as Danfoss, Bucher, Atos, Harvey, and Eaton, facilitating widespread application. In some embodiments, the bus valve system 80 can include one or more bus valves 82, such as a hydraulic valve group. The bus valve control device 81 can communicate with each bus valve in the hydraulic valve group.

[0084] Such a bus valve system can promptly disconnect the power supply of the bus valve when an abnormality occurs in the communication between the bus valve and the controller, preventing the bus valve from changing the valve core displacement state, avoiding accidents caused by the control signal having difficulty reaching the bus valve, and improving the safety of the bus valve application.

[0085] In some embodiments, the bus valve 82 can also perform a displacement operation based on a displacement indication from the bus valve control device. After the displacement operation, the displacement amount is determined, and displacement feedback is generated and sent based on the displacement amount. The bus valve control device 81 determines, based on the displacement feedback and the displacement indication sent by itself, whether the difference between the relationship between the displacement indication sent to the bus valve and the displacement feedback from the bus valve and the preset corresponding relationship is within a preset difference range. If the difference exceeds the preset difference range, the alarm device is triggered to issue an alarm message.

[0086] Such a bus valve system can promptly detect the failure of the integrated module in the bus valve, avoid the safety hazards caused by the mismatch between the displacement operation of the bus valve and the control instructions of the controller, and issue an alarm in time, thereby reducing the probability of danger and further improving the safety of bus valve applications.

[0087] Schematic diagrams of other embodiments of the bus valve system disclosed herein are as follows: Figure 9 shown.

[0088] The bus valve control device of the bus valve system is as follows Figure 9 As shown in the figure, the controller P1 includes multiple interfaces, such as interfaces 1 to 4, among which interfaces CAN (Controller Area Network)_H and CAN_L are two interfaces for bus communication between the controller and the bus valve P2, the control output DO interface 3 is an interface for outputting a control signal to the electromagnetic relay, and the control output DO interface 4 is an interface for sending a flameout signal to the device equipped with the bus valve P2.

[0089] There are multiple interfaces between the bus valve P2 and the controller P1, such as interfaces 1 to 4, among which interfaces CANH and CANL are two interfaces for bus communication between the bus valve P2 and the controller P1, interface GND is the grounding interface, and interface Vbat+ is the power supply circuit interface, which is used to obtain electrical energy for the operation of the bus valve.

[0090] Such a bus valve system monitors bus network anomalies and performs power-off protection by increasing power supply control over the bus valve. In addition, it can also actively defend against flameout alarms when multiple restarts are ineffective. By comparing the displacement indication output by the controller with the displacement feedback from the bus valve, it can issue a timely alarm when the tolerance range is exceeded, thereby improving the safety of equipment operation.

[0091] The present disclosure is described with reference to flowcharts and / or block diagrams of methods, devices (systems) and computer program products according to embodiments of the present disclosure. It should be understood that each process and / or block in the flowchart and / or block diagram and the combination of processes and / or blocks in the flowchart and / or block diagram can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 a process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0092] These computer program instructions may also be stored in a computer readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 a process or multiple processes and / or boxes Figure 1 The function specified in one or more boxes.

[0093] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing the instructions executed on the computer or other programmable device for implementing the process. Figure 1 a process or multiple processes and / or boxes Figure 1 The steps for the function specified in one or more boxes.

[0094] The present disclosure has been described in detail so far. To avoid obscuring the concept of the present disclosure, some details known in the art have not been described. Based on the above description, those skilled in the art can fully understand how to implement the technical solutions disclosed herein.

[0095] The methods and apparatus of the present disclosure may be implemented in many ways. For example, the methods and apparatus of the present disclosure may be implemented by software, hardware, firmware, or any combination of software, hardware, and firmware. The above order of steps for the method is for illustration only, and the steps of the method of the present disclosure are not limited to the order specifically described above, unless otherwise specifically stated. In addition, in some embodiments, the present disclosure may also be implemented as programs recorded in a recording medium, which include machine-readable instructions for implementing the methods according to the present disclosure. Therefore, the present disclosure also covers recording media that store programs for executing the methods according to the present disclosure.

[0096] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure and not to limit it. Although the present disclosure has been described in detail with reference to the preferred embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present disclosure can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solutions of the present disclosure, which should all be included in the scope of the technical solutions requested for protection in the present disclosure.

Claims

1. A bus valve control device, comprising: a power supply control device configured to disconnect the power supply circuit of the bus valve according to a first control signal from the controller; an alarm device configured to issue an alarm message according to a fourth control signal from the controller; The controller is configured to determine the status of the network between the controller and the bus valve, and in the event of a network abnormality, send the first control signal to the power supply control device, wherein the controller is configured to obtain a displacement indication sent to the bus valve and a displacement feedback from the bus valve, wherein the bus valve performs a displacement operation after receiving the displacement indication, determines the displacement amount, generates and sends the displacement feedback based on the displacement amount, and determines, based on a preset correspondence between the displacement indication and the displacement feedback, whether the difference between the relationship between the displacement indication sent to the bus valve and the displacement feedback from the bus valve and the preset correspondence is within a preset difference range; if the difference exceeds the preset difference range, the fourth control signal is sent to the alarm device.

2. The device according to claim 1, wherein The power supply control device is further configured to connect the power supply circuit of the bus valve according to a second control signal from the controller; The controller is further configured to send the second control signal to the power supply control device when a time length after the power supply circuit of the bus valve is disconnected is greater than or equal to a first predetermined time length.

3. The apparatus according to claim 1, further comprising: a flameout control device configured to control flameout of a device equipped with a bus valve according to a third control signal from the controller; The controller is further configured to send the third control signal to the flameout control device when a network between the controller and the bus valve is abnormal and the power supply circuit is disconnected a number of times greater than or equal to a predetermined number.

4. The device according to claim 1, wherein The controller is further configured to send the fourth control signal to the alarm device when the network between the controller and the bus valve is abnormal and the number of disconnections of the power supply circuit is greater than or equal to a predetermined number.

5. The device according to claim 1, wherein The preset corresponding relationship is a relationship curve; The controller is configured to: Determine the standard displacement feedback corresponding to the displacement indication of the bus valve on the relationship curve; determining an absolute value of a difference between a displacement feedback from the bus valve and the standard displacement feedback; The absolute value is compared with a preset difference threshold, and if the absolute value is greater than the preset difference threshold, the fourth control signal is sent to the alarm device.

6. The device according to claim 2, wherein The power supply control device includes a switch located on the power supply circuit, and a relay controlling the switch; The relay is configured to control a switch on the power supply circuit to open according to the first control signal, and to control the switch on the power supply circuit to close according to the second control signal.

7. The device according to claim 1, wherein The controller is configured to determine a status of a network between the controller and the bus valve by monitoring the bus network between the controller and the bus valve.

8. A bus valve control method, comprising: Determine the status of the network between the controller and the bus valve; In the event of a network anomaly, the power supply circuit controlling the bus valve is disconnected; obtaining a displacement indication sent to the bus valve and a displacement feedback from the bus valve, wherein the bus valve performs a displacement operation after receiving the displacement indication, determines a displacement amount, and generates and sends the displacement feedback based on the displacement amount; determining, based on a preset correspondence between a displacement indication and a displacement feedback, whether a difference between a relationship between a displacement indication sent to the bus valve and a displacement feedback from the bus valve and the preset correspondence is within a preset difference range; If the difference exceeds the preset difference range, the alarm device is controlled to issue an alarm message.

9. The method according to claim 8, further comprising: When the time length after the power supply circuit of the bus valve is disconnected is greater than or equal to the first predetermined time length, the power supply circuit of the bus valve is controlled to be connected.

10. The method according to claim 8, further comprising: When the network between the controller and the bus valve is abnormal and the number of disconnections of the power supply circuit is greater than or equal to a predetermined number, the device equipped with the bus valve is controlled to shut down.

11. The method according to claim 8, further comprising: When it is determined that the network between the controller and the bus valve is abnormal and the number of disconnections of the power supply circuit is greater than or equal to a predetermined number, the alarm device is controlled to issue an alarm message.

12. The method according to claim 8, wherein The preset corresponding relationship is a relationship curve; The determining, based on the preset correspondence between the displacement indication and the displacement feedback, whether a difference between a relationship between the displacement indication sent to the bus valve and the displacement feedback from the bus valve and the preset correspondence is within a preset difference range, and if the difference exceeds the preset difference range, controlling the alarm device to issue an alarm message includes: Determine the standard displacement feedback corresponding to the displacement indication of the bus valve on the relationship curve; determining an absolute value of a difference between a displacement feedback from the bus valve and the standard displacement feedback; The absolute value is compared with a preset difference threshold, and if the absolute value is greater than the preset difference threshold, the alarm device is controlled to issue an alarm message.

13. A controller for a bus valve, comprising: Memory; as well as A processor coupled to the memory, the processor being configured to execute the method according to any one of claims 8 to 12 based on instructions stored in the memory.

14. A non-transitory computer-readable storage medium having computer program instructions stored thereon, wherein when the instructions are executed by a processor, the steps of the method according to any one of claims 8 to 12 are implemented.

15. A bus valve system comprising: The bus valve control device according to any one of claims 1 to 7; and The bus valve is configured to communicate with the bus valve control device through a network and obtain electrical energy through a power supply circuit controlled by the bus valve control device.

16. The system according to claim 15, wherein: The bus valve is further configured to perform a displacement operation according to the displacement instruction from the bus valve control device, determine a displacement amount after the displacement operation, and generate and send the displacement feedback according to the displacement amount.

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