CN115407695A

CN115407695A - Bus valve control device, method, controller, bus valve system and storage medium

Info

Publication number: CN115407695A
Application number: CN202211033261.4A
Authority: CN
Inventors: 张勇; 叶家良; 李鑫; 卢超; 李丹
Original assignee: XCMG Fire Fighting Safety Equipment Co Ltd
Current assignee: XCMG Fire Fighting Safety Equipment Co Ltd
Priority date: 2022-08-26
Filing date: 2022-08-26
Publication date: 2022-11-29

Abstract

The disclosure provides a bus valve control device, a bus valve control method, a bus valve control device, a bus valve system and a storage medium, and relates to the technical field of hydraulic pressure. The bus valve control device of the present disclosure includes: a power supply control device configured to disconnect a power supply circuit of the bus valve according to a first control signal from the controller; and a controller configured to determine a state of a network between the controller and the bus valve, and to transmit a first control signal to the power supply control apparatus in case of an abnormality of the network. The bus valve control device can timely disconnect the power supply of the bus valve when the communication between the bus valve and the controller is abnormal, so that accidents caused by the fact that control signals are difficult to reach the bus valve are avoided, and the safety of application of the bus valve is improved.

Description

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

Technical Field

The disclosure relates to the field of hydraulic technology, in particular to a bus valve control device, a bus valve control method, a bus valve control device, a bus valve system and a storage medium.

Background

The bus valve highly integrates the mechanical, electrical and hydraulic integration technology, realizes the internal closed-loop control of the driving signal and the valve core movement, and improves the aspects of dynamic and static precision, efficiency, operability, energy conservation and the like of a control mechanical system. The bus valve has the function of controlling flow and pressure with higher precision, so that the actuating element can achieve speed and displacement movement with higher precision according to input requirements.

The input of the traditional proportional valve is the PWM (Pulse Width Modulation) signal of the vehicle-mounted controller to directly control, or control the pilot oil path to drive the valve plug to act. The input of the bus valve control is a flow or displacement signal sent by a bus port of the vehicle-mounted controller, and the output is a signal obtained by dynamically adjusting the flow or displacement by the bus valve integrated circuit board, so that the requirements of the vehicle-mounted controller are met.

The valve core of the bus valve has the problem of clamping stagnation, and the vehicle is easily damaged under the condition that the action is not controlled. For the valve core displacement clamping stagnation, the mode of comparing the output signal with the output result of the boom attitude sensor is adopted in the related technology for judgment: when no output signal is available, if the posture of the arm support continuously changes, protection is performed, and vehicle damage or other accidents caused by valve core displacement and clamping stagnation are prevented.

Disclosure of Invention

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

According to an aspect of some embodiments of the present disclosure, there is provided a bus valve control apparatus including: a power supply control device configured to disconnect a power supply circuit of the bus valve according to a first control signal from the controller; and a controller configured to determine a state of a network between the controller and the bus valve, and transmit a first control signal to the power supply control apparatus in case of an abnormality of the network.

In some embodiments, the power supply control device is further configured to turn on a power supply circuit of the bus valve according to a second control signal from the controller; the controller is further configured to transmit a second control signal to the power supply control device in a case where a length of time after the power supply circuit of the bus valve is disconnected is equal to or greater than a first predetermined length of time.

In some embodiments, the apparatus further comprises: a stall control device configured to control the device on which the bus valve is mounted to stall in accordance with a third control signal from the controller; the controller is further configured to transmit a third control signal to the fire extinguishing control device in a case where the network between the controller and the bus valve is abnormal and the number of times of disconnection of the power supply circuit is equal to or greater than a predetermined number of times.

In some embodiments, the apparatus further comprises: an alarm device configured to issue alarm information according to a fourth control signal from the controller; the controller is further configured to: acquiring a displacement indication sent to a bus valve and a displacement feedback from the bus valve; determining whether the difference between the preset corresponding relation and the relation between the displacement indication sent to the bus valve and the displacement feedback from the bus valve is within a preset difference range or not according to the preset corresponding relation between the displacement indication and the displacement feedback; and if the difference exceeds the preset difference range, sending a fourth control signal to the warning device.

In some embodiments, the controller is further configured to send a fourth control signal to the alert device in the event that the network between the controller and the bus valve is abnormal and the number of times the power supply circuit is disconnected is greater than or equal to a predetermined number of times.

In some embodiments, the predetermined correspondence is a relationship curve; the controller is configured to: determining standard displacement feedback corresponding to the displacement indication of the bus valve on the relation curve; determining an absolute value of a difference between the displacement feedback from the bus valve and the standard displacement feedback; and comparing the absolute value with a preset difference threshold, and if the absolute value is greater than the preset difference threshold, sending a fourth control signal to the warning device.

In some embodiments, 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 a switch on the power supply circuit to close according to the second control signal.

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.

According to an aspect of some embodiments of the present disclosure, there is provided a bus valve control method including: determining a state of a network between the controller and the bus valve; in case of network anomaly, the power supply circuit of the control bus valve is disconnected.

In some embodiments, the method further comprises: and controlling the power supply circuit of the bus valve to be switched on under the condition that the time length after the power supply circuit of the bus valve is switched off is greater than or equal to a first preset time length.

In some embodiments, the method further comprises: and under the condition that the network between the controller and the bus valve is abnormal and the disconnection times of the power supply circuit are more than or equal to the preset times, controlling the equipment with the bus valve to be switched off.

In some embodiments, the method further comprises: acquiring a displacement instruction sent to a bus valve and displacement feedback from the bus valve, wherein the bus valve executes displacement operation after receiving the displacement instruction, determines that displacement is generated according to the displacement amount and sends the displacement feedback; determining whether the difference between the preset corresponding relation and the relation between the displacement indication sent to the bus valve and the displacement feedback from the bus valve is within a preset difference range according to the preset corresponding relation between the displacement indication and the displacement feedback; and if the difference exceeds the preset difference range, controlling the alarm equipment to send out alarm information.

In some embodiments, the method further comprises: and controlling the alarm equipment to send out alarm information under the condition that the network between the controller and the bus valve is determined to be abnormal and the disconnection times of the power supply circuit are more than or equal to the preset times.

In some embodiments, the predetermined correspondence is a relationship curve; determining whether the difference between the relation between the displacement indication sent to the bus valve and the displacement feedback from the bus valve and the preset corresponding relation is within a preset difference range or not according to the preset corresponding relation between the displacement indication and the displacement feedback, and controlling the alarm equipment to send out alarm information if the difference exceeds the preset difference range, wherein the preset difference range comprises the following steps: determining standard displacement feedback corresponding to the displacement indication of the bus valve on the relation curve; determining an absolute value of a difference between the displacement feedback from the bus valve and the standard displacement feedback; and comparing the absolute value with a preset difference threshold, and controlling the alarm equipment to send out alarm information if the absolute value is greater than the preset difference threshold.

According to an aspect of some embodiments of the present disclosure, there is provided a controller of a bus valve, including: a memory; and a processor coupled to the memory, the processor configured to perform any of the above bus valve control methods based on instructions stored in the memory.

According to an aspect of some embodiments of the present disclosure, a non-transitory computer readable storage medium is presented having stored thereon computer program instructions which, when executed by a processor, implement the steps of any of the above bus valve control methods.

According to an aspect of some embodiments of the present disclosure, there is provided a bus valve system, including: any of the above bus valve control means; and a bus valve configured to communicate with the bus valve control device through a network, the bus valve being powered by a power supply circuit controlled by the bus control device.

In some embodiments, the bus valve is further configured to perform a displacement operation in accordance with the displacement indication from the bus valve control means, determine a displacement amount after the displacement operation, generate and send displacement feedback in accordance with the displacement amount.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this disclosure, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure and not to limit the disclosure. In the drawings:

fig. 1 is a schematic diagram of some embodiments of a bus valve control apparatus of the present disclosure.

FIG. 2 is a schematic diagram of further embodiments of a bus valve control apparatus of the present disclosure.

Fig. 3 is a flow chart of some embodiments of a bus valve control method of the present disclosure.

FIG. 4 is a flow chart of further embodiments of a bus valve control method of the present disclosure.

FIG. 5A is a flow chart of still further embodiments of the bus valve control method of the present disclosure.

FIG. 5B is a schematic diagram of some embodiments of a relationship curve in a bus valve control method of the present disclosure.

Fig. 6 is a schematic diagram of some embodiments of a controller of a bus valve of the present disclosure.

Fig. 7 is a schematic diagram of further embodiments of a controller for a bus valve of the present disclosure.

Fig. 8 is a schematic diagram of some embodiments of bus valve systems of the present disclosure.

Fig. 9 is a schematic view of further embodiments of bus valve systems of the present disclosure.

Detailed Description

The technical solution of the present disclosure is further described in detail by the accompanying drawings and embodiments.

The inventor finds that the bus valve is integrally controlled by the internal module through vehicle-mounted bus network communication, and when the bus network is abnormal, the valve control signal cannot be normally controlled, so that the danger of vehicle amplitude exceeding is possibly caused.

In order to solve the problems, the bus valve control device provided by the disclosure can timely cut off control to protect a vehicle from being damaged when the problems of jamming of a bus valve control circuit, a bus valve core sheet, a bus valve core and the like occur.

A schematic diagram of some embodiments of the bus valve control apparatus 11 of the present disclosure is shown in fig. 1, including a controller 101 and a power supply control device 102.

The controller 101 determines the state of the network between the controller and the bus valve, and in the case of an abnormality of the network, transmits a first control signal to the power supply control apparatus. In some embodiments, the controller 101 can obtain information transfer status over a network between the controller and the bus valve, such as monitoring a heartbeat signal over the network, or monitoring feedback information of a bus valve needle over the network to the roll call command of the controller 101. And under the condition that the heartbeat signal is interrupted or the interruption time length exceeds a preset time length or the feedback information of the bus valve to the roll call instruction cannot be monitored, determining that the network is abnormal, and further triggering and executing the operation of sending the first control signal. In some embodiments, the predetermined time length can be set and adjusted as needed, for example, set and adjusted according to the set heartbeat signal period length or roll call period length, for example, 1 to 3 heartbeat signal periods.

The power supply control device 102 can disconnect the power supply circuit of the bus valve according to a first control signal from the controller. In some embodiments, the power control device 102 may be a solenoid relay switch located on the bus valve control circuit, including a switch located on the power circuit, and a relay controlling the switch. In some embodiments, the relay is capable of controlling a switch on the power supply circuit to open in response to the first control signal, thereby disconnecting power to the bus valve.

The bus valve control device can timely disconnect the power supply of the bus valve when the communication between the bus valve and the controller is abnormal, prevent the bus valve from changing the displacement state of the valve core, avoid accidents caused by the fact that control signals are difficult to reach the bus valve, and improve the application safety of the bus valve.

In some embodiments, the disconnection of the power supply control device 102 to the power supply circuit may last for a preset length of time. When the time length after the power supply control device 102 turns off the power supply circuit of the bus valve is equal to or longer than the first predetermined time length, the controller 101 transmits a second control signal to the power supply control device, and the power supply control device 102 turns on the power supply circuit of the bus valve according to the second control signal from the controller. In some embodiments, the first predetermined length of time is between 0.5 and 5 seconds, and in some embodiments, the first predetermined length of time is 1 second.

The bus valve control device can timely recover the working state, avoid long-time stop work and ensure the working efficiency; in addition, partial network fault problems can be solved through one-time power-off-on operation, equipment fault removing operation is achieved, and the fault removing efficiency of the equipment is improved.

In some embodiments, the bus valve control apparatus 21 is shown in fig. 2, and the controller 201 and the power supply control device 202 may be similar to the controller 101 and the power supply control device 102 in fig. 1. The bus valve control means further comprises a misfire control means 203.

In some embodiments, after the power supply control device 202 turns on 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 state between the controller and the bus valve, and counts the number of times of turning off from the last time node to the current power supply circuit.

In some embodiments, if the number of times the power supply circuit is disconnected is less than the predetermined number of times, the first control signal is sent again, causing the power supply control device 202 to disconnect the power supply circuit. In some embodiments, if the number of times of disconnection of the power supply circuit is greater than or equal to the predetermined number of times, the controller 201 sends a third control signal to the stall control device 203, and the stall control device 203 controls the device (such as a vehicle) on which the bus valve is mounted to stall according to the third control signal from the controller 201. In some embodiments, the last time node may be a time of a last device ignition, or a time after a last network failure is cleared, or a previous time separated from a current time by a predetermined time length. In some embodiments, the predetermined number of times may be 2 to 5 times, and in some embodiments, the predetermined number of times may be set to 2 times.

The bus valve control device can timely extinguish the fire under the condition of network fault after the power supply circuit is disconnected for many times, thereby avoiding the repeated cycle of power failure and power supply, further improving the safety of equipment carrying the bus valve and avoiding further fault and accident; in addition, the fault can be eliminated through the on-off of the network through a plurality of times of power-off and power-supply operations, and the work can be stopped in time under the condition that the fault cannot be eliminated through a plurality of times of attempts, so that the efficiency and the comprehensiveness of the fault elimination are improved.

In addition, the inventor finds that besides the fault of the communication network, the case of uncontrolled displacement of the valve core caused by the failure of the integrated module in the bus valve is also a fault case which is difficult to remove in the related art, and the situations can also cause dangerous actions.

In some embodiments, as shown in FIG. 2, an alarm device 204 may also be included in the bus valve control apparatus.

When the controller 202 sends a displacement indication to the bus valve, the bus valve executes a displacement operation and determines a displacement amount after receiving the displacement indication, and the bus valve generates and sends displacement feedback to the controller 202 according to the displacement amount. The controller 202 determines whether the difference between the displacement indication sent to the bus valve and the displacement feedback from the bus valve and the preset corresponding relation is within a preset difference range according to the displacement indication sent to the bus valve and the displacement feedback sent by the bus valve; and if the difference exceeds the preset difference range, sending a fourth control signal to the alarm device 204. In some embodiments, an ideal displacement feedback corresponding to the displacement indication may be determined according to the displacement indication of the bus valve and a preset corresponding relationship, and then the ideal displacement feedback and the displacement feedback from the displacement feedback of the bus valve are compared to determine a difference therebetween, and then whether the difference is within a preset difference range is determined.

The alarm device 204 is capable of issuing an alarm message in case of receiving the fourth control signal. In some embodiments, the warning message may be sent out by an indicator light, a ring tone, a voice announcement, or the like, or a prompt message may be sent out to a predetermined device (e.g., a control, a terminal of a maintenance person, or the like).

The bus valve control device can find the problem of the fault of the integrated module in the bus valve in time, avoid potential safety hazards caused by mismatching of displacement operation of the bus valve and control indication of the controller and give an alarm in time, thereby reducing the probability of danger and further improving the application safety of the bus valve.

In some embodiments, when the controller determines that the device equipped with the bus valve is to be turned off, the controller may also send a fourth control signal to the warning device, so that the warning device 204 sends a warning message, thereby improving the timeliness of discovering the device fault and improving the device troubleshooting efficiency.

A flow chart of some embodiments of the bus valve control method of the present disclosure is shown in fig. 3.

In step 311, the status of the network between the controller and the bus valve is determined. In some embodiments, monitoring of the state of the network may be performed by the controller. In some embodiments, a heartbeat signal on the network is monitored, or feedback information of a bus needle on the network to a roll call command of the controller is monitored.

In step 312, it is determined whether a network anomaly has occurred. If the network is abnormal, go to step 313; otherwise, the status of the network between the controller and the bus valve continues to be monitored. In some embodiments, a network anomaly is determined in the event that a heartbeat signal is interrupted or the duration of the interruption exceeds a predetermined duration, or in the event that feedback information of a bus valve to a roll call command fails to be monitored.

In step 313, the power supply circuit of the control bus valve is opened. In some embodiments, the switch on the power supply circuit may be controlled to open by sending a control signal to the switch. In some embodiments, an electromagnetic relay that may control a switch on the power supply circuit sends a first control signal to cause the power supply circuit to open.

By the method, the power supply of the bus valve can be timely disconnected when the communication between the bus valve and the controller is abnormal, the bus valve is prevented from changing the displacement state of the valve core, accidents caused by the fact that control signals are difficult to reach the bus valve are avoided, and the application safety of the bus valve is improved.

A flow chart of further embodiments of the bus valve control method of the present disclosure is shown in fig. 4.

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

In step 412, it is determined whether the network is abnormal according to the monitoring result. If the network is determined to be abnormal, step 413 is executed, otherwise, the control is finished, or the process returns to step 411.

In step 413, it is determined whether or not the number of times of disconnection of the power supply circuit is equal to or greater than a predetermined number of times. In some embodiments, the number counting operation may be started at one or more time nodes. In some embodiments, the last time node may be the time of the last device firing, or the time after the last network troubleshooting, or a previous time spaced a predetermined length of time from the current time.

If the number of times of disconnection of the power supply circuit is greater than or equal to the predetermined number of times, execute step 417; if the number of times of disconnection of the power supply circuit is less than the predetermined number of times, step 414 is performed.

In step 414, the power circuit to the control bus valve is opened and step 415 is performed.

In step 415, whether the time period after the power supply circuit is turned off is equal to or greater than a first predetermined time period. If the time length after the power supply circuit is disconnected is greater than or equal to the first predetermined time length, go to step 416; otherwise, the off state is maintained.

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

In step 417, an alarm message is issued to turn off the device equipped with the bus valve.

The bus valve control method can timely recover the working state, avoid long-time stop work and ensure the working efficiency; the power supply circuit can be switched off for many times, and then timely flameout can be realized under the condition that network faults happen again, so that repeated circulation of power failure and power supply is avoided, the safety of equipment carrying the bus valve is further improved, and further faults and accidents are avoided; in addition, the fault can be eliminated through the on-off of the network through a plurality of times of power-off and power-supply operations, and the work can be stopped in time under the condition that the fault cannot be eliminated through a plurality of times of attempts, so that the efficiency and the comprehensiveness of the fault elimination are improved.

A flow chart of yet other embodiments of the bus valve control method of the present disclosure is shown in fig. 5A.

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

In step 522, the controller determines a difference between a relationship between the displacement indication sent to the bus valve and the displacement feedback from the bus valve and a preset correspondence according to the preset correspondence of the displacement indication and the displacement feedback. In some embodiments, the preset correspondence between the displacement indication and the displacement feedback may be as shown in fig. 5B, and in some embodiments, the horizontal axis is the output of the controller, i.e., the displacement indication, and the vertical axis is the displacement feedback of the bus valve. In some embodiments, the unit of the displacement indication and the displacement feedback may be different, for example, the displacement indication may be percentage information, and the displacement feedback may be a scalar value corresponding to the displacement vector. In some embodiments, a curve of the preset correspondence relationship may be generated according to the performance of the bus valve, and the preset correspondence relationship may be stored in the controller.

In some embodiments, an ideal displacement feedback corresponding to the displacement indication may be determined according to the displacement indication of the bus valve and the preset corresponding relationship, and then the ideal displacement feedback is compared with the displacement feedback from the displacement feedback of the bus valve to determine an absolute value of a difference between the ideal displacement feedback and the displacement feedback.

In step 523, the absolute value is compared with a preset upper error limit, and if the absolute value is less than or equal to the preset upper error limit, it is determined that the current working state is normal; if the absolute value is greater than the predetermined upper error limit, go to step 524.

In some embodiments, the displacement indication may be fitted to displacement feedback F _(feedback) ＝F _(output) And + -K curves, where K is a tolerance range, when the output and feedback are within the tolerance range, no alarm is issued, otherwise step 524 is performed.

In step 524, the control alarm device issues an alarm message.

By the method, the problem of faults of the integrated module in the bus valve can be found in time, potential safety hazards caused by mismatching of displacement operation of the bus valve and control indication of the controller are avoided, and warning is given in time, so that the probability of danger is reduced, and the application safety of the bus valve is further improved.

A schematic diagram of an embodiment of a controller for a bus valve of the present disclosure is shown in fig. 6. The controller of the bus valve comprises a memory 601 and a processor 602. Wherein: the memory 601 may be a magnetic disk, flash memory, or any other non-volatile storage medium. The memory is for storing instructions in the corresponding embodiments of the bus valve control method hereinabove. Coupled to the memory 601 is a processor 602, which may be implemented as one or more integrated circuits, such as a microprocessor or microcontroller. The processor 602 is configured to execute instructions stored in the memory to improve the safety of the application to the bus valve.

In one embodiment, as also shown in fig. 7, a controller 700 of the bus valve includes a memory 701 and a processor 702. Processor 702 is coupled to memory 701 by a BUS BUS 703. The controller 700 of the bus valve may be connected to an external storage device 705 through a storage interface 704 to call external data, and may be connected to a network or another computer system (not shown) through a network interface 706. And will not be described in detail herein.

In this embodiment, the safety of the application to the bus valve can be improved by storing data instructions in the memory and processing the instructions by the processor.

In another embodiment, a computer readable storage medium has stored thereon computer program instructions which, when executed by a processor, implement the steps of the method in the corresponding embodiment of the bus valve control method. As will be appreciated by one skilled in the art, embodiments of the present disclosure may be provided as a method, apparatus, or computer program product. Accordingly, the present disclosure may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present disclosure may take the form of a computer program product embodied on one or more computer-usable non-transitory storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and so forth) having computer-usable program code embodied therein.

A schematic diagram of some embodiments of the bus valve system 80 of the present disclosure is shown in fig. 8.

The bus valve control device 81 may be any of those mentioned above.

The bus valve 82 can communicate with the bus valve control device over a network, drawing power from the power supply circuit controlled by the bus control device. In some embodiments, the bus valves targeted by the present disclosure may be those of multiple companies, such as danfoss, buch, atows, hawser, eaton, etc., thereby facilitating widespread use. In some embodiments, the bus valves 82 in the bus valve system 80 may be one or more, such as may be a hydraulic valve set. The bus valve control 81 may be in communication with each bus valve in the hydraulic valve block.

The bus valve system can timely disconnect the power supply of the bus valve when the communication between the bus valve and the controller is abnormal, prevent the bus valve from changing the displacement state of the valve core, avoid accidents caused by the fact that control signals are difficult to reach the bus valve, and improve the application safety of the bus valve.

In some embodiments, the bus valve 82 can further perform a displacement operation according to the displacement indication from the bus valve control device, after the displacement operation, determine a displacement amount, generate and send displacement feedback according to the displacement amount, and the bus valve control device 81 determines whether a difference between a relationship between the displacement indication sent to the bus valve and the displacement feedback from the bus valve and a preset corresponding relationship is within a preset difference range based on the displacement feedback and the displacement indication sent by itself, and if the difference exceeds the preset difference range, triggers the alarm device to send an alarm message.

The bus valve system can timely find the fault problem of the integrated module in the bus valve, avoid potential safety hazards caused by mismatching of displacement operation of the bus valve and control indication of the controller, and timely give an alarm, so that the probability of danger is reduced, and the application safety of the bus valve is further improved.

A schematic diagram of further embodiments of the bus valve system of the present disclosure is shown in fig. 9.

As shown in fig. 9, the Controller P1 of the bus valve system includes a plurality of interfaces, such as interfaces 1 to 4, where 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 stall signal to a device equipped with the bus valve P2.

A plurality of interfaces, such as interfaces 1 to 4, are included between the bus valve P2 and the controller P1, where the interfaces CANH and CANL are two interfaces for bus communication between the bus valve P2 and the controller P1, the interface GND is a ground interface, and the interface Vbat + is a power supply circuit interface, which is used for obtaining electric energy for the operation of the bus valve.

The bus valve system realizes monitoring of bus network abnormity and power-off protection by increasing power supply control of the bus valve, and can actively defend flameout and alarm under the condition of repeated restart invalidity; through comparing the displacement indication output by the controller with the displacement fed back by the bus valve, the alarm can be given in time under the condition of exceeding the tolerance range, and therefore the running safety of the equipment is improved.

The present disclosure is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the disclosure. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

Thus far, the present disclosure has been described in detail. Some details well known in the art have not been described in order to avoid obscuring the concepts of the present disclosure. It will be fully apparent to those skilled in the art from the foregoing description how to practice the presently disclosed embodiments.

The methods and apparatus of the present disclosure may be implemented in a number of 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-described order for the steps of 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 specifically stated otherwise. Further, in some embodiments, the present disclosure may also be embodied as programs recorded in a recording medium, the programs including machine-readable instructions for implementing the methods according to the present disclosure. Thus, the present disclosure also covers a recording medium storing a program for executing the method according to the present disclosure.

Finally, it should be noted that: the above examples are intended only to illustrate the technical solutions of the present disclosure and not to limit them; although the present disclosure has been described in detail with reference to preferred embodiments, those of ordinary skill in the art will understand that: modifications to the specific embodiments of the disclosure or equivalent substitutions for parts of the technical features may still be made; all such modifications are intended to be included within the scope of the claims of this disclosure without departing from the spirit thereof.

Claims

1. A bus valve control apparatus comprising:

a power supply control device configured to disconnect a power supply circuit of the bus valve according to a first control signal from a controller;

a controller configured to determine a state of a network between the controller and the bus valve, and to transmit the first control signal to the power supply control apparatus in case of a network abnormality.

2. The apparatus of claim 1, wherein,

the power supply control device is further configured to turn on a power supply circuit of the bus valve according to a second control signal from the controller;

the controller is further configured to transmit the second control signal to the power supply control device in a case where a length of time after the power supply circuit of the bus valve is disconnected is equal to or greater than a first predetermined length of time.

3. The apparatus of claim 1, further comprising: a stall control device configured to control the device on which the bus valve is mounted to stall in accordance with a third control signal from the controller;

the controller is further configured to send the third control signal to the fire extinguishing control device in a case where a network between the controller and the bus valve is abnormal and the number of times of disconnection of the power supply circuit is equal to or greater than a predetermined number of times.

4. The apparatus of claim 1, further comprising: an alarm device configured to issue alarm information according to a fourth control signal from the controller;

the controller is further configured to:

acquiring a displacement instruction sent to the bus valve and displacement feedback from the bus valve, wherein the bus valve executes displacement operation after receiving the displacement instruction, determines the displacement amount, and generates and sends the displacement feedback according to the displacement amount;

determining whether the difference between the preset corresponding relation and the relation between the displacement indication sent to the bus valve and the displacement feedback from the bus valve is within a preset difference range or not according to the preset corresponding relation between the displacement indication and the displacement feedback;

and if the difference exceeds the preset difference range, sending the fourth control signal to the warning equipment.

5. The apparatus of claim 4, wherein the controller is further configured to send the fourth control signal to the alert device if a network between the controller and a bus valve is abnormal and a number of times the power supply circuit is disconnected is greater than or equal to a predetermined number of times.

6. The apparatus of claim 4, wherein the preset correspondence is a relationship curve;

the controller is configured to:

determining a standard displacement feedback corresponding to the displacement indication of the bus valve on the relationship curve;

determining an absolute value of a difference between displacement feedback from the bus valve and the standard displacement feedback;

and comparing the absolute value with a preset difference threshold, and if the absolute value is greater than the preset difference threshold, sending the fourth control signal to the warning device.

7. The apparatus of claim 2, wherein the power supply control device comprises a switch 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 a switch on the power supply circuit to close according to the second control signal.

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

9. A bus valve control method, comprising:

determining a state of a network between the controller and the bus valve;

and in case of network abnormality, controlling the power supply circuit of the bus valve to be disconnected.

10. The method of claim 9, further comprising:

and controlling the power supply circuit of the bus valve to be switched on under the condition that the time length after the power supply circuit of the bus valve is switched off is greater than or equal to a first preset time length.

11. The method of claim 9, further comprising:

and under the condition that the network between the controller and the bus valve is abnormal and the disconnection times of the power supply circuit are more than or equal to the preset times, controlling the equipment with the bus valve to be switched off.

12. The method of claim 9, further comprising:

acquiring a displacement instruction sent to the bus valve and a displacement feedback from the bus valve, wherein the bus valve executes a displacement operation after receiving the displacement instruction, determines a displacement amount, and generates and sends the displacement feedback according to the displacement amount;

and if the difference exceeds the preset difference range, controlling the alarm equipment to send out alarm information.

13. The method of claim 12, further comprising:

and under the condition that the network between the controller and the bus valve is determined to be abnormal and the disconnection times of the power supply circuit are more than or equal to the preset times, controlling the alarm equipment to send out alarm information.

14. The method of claim 12, wherein the preset correspondence is a relationship curve;

the determining, according to a preset corresponding relationship between a displacement indication and a 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 corresponding relationship is within a preset difference range, and if the difference exceeds the preset difference range, controlling the alarm device to send out alarm information includes:

and comparing the absolute value with a preset difference threshold, and controlling the alarm equipment to send alarm information if the absolute value is greater than the preset difference threshold.

15. A controller for a bus valve, comprising:

a memory; and

a processor coupled to the memory, the processor configured to perform the method of any of claims 9-14 based on instructions stored in the memory.

16. A non-transitory computer readable storage medium having stored thereon computer program instructions which, when executed by a processor, implement the steps of the method of any of claims 9 to 14.

17. A bus valve system, comprising:

the bus valve control apparatus of any one of claims 1 to 8; and

a bus valve configured to communicate with the bus valve control device through a network, the bus valve being powered by a power supply circuit controlled by the bus control device.

18. The system of claim 17, wherein the bus valve is further configured to perform a displacement operation according to the displacement indication from the bus valve control, determine a displacement amount after the displacement operation, and generate and transmit the displacement feedback according to the displacement amount.