阅读说明：本技术 熄火控制系统、急停报警方法以及熄火控制方法 (Flameout control system, emergency stop alarm method and flameout control method ) 是由 曾中炜 张远波 张韬 于 2019-09-18 设计创作，主要内容包括：本发明公开了一种熄火控制系统,所述控制系统包括：急停控制单元,用于生成急停控制信号；二次控制单元,与所述急停控制单元电连接,用于获取所述急停控制信号,并基于所述急停控制信号生成熄火控制信号；熄火控制单元,与所述二次控制单元电连接,用于获取所述熄火控制信号,并基于所述熄火控制信号执行对应的熄火控制操作。本发明还公开了一种急停报警方法和熄火控制方法。通过对现有的熄火控制系统进行改进,在现有的熄火控制系统的基础上设置额外的二次控制单元,根据工程设备的实际使用状态对现有熄火控制单元进行及时的状态报警以及二次熄火控制,从而降低安全威胁,提高用户使用过程中的交互性和安全性,提高了用户体验。(The invention discloses a flameout control system, which comprises: the emergency stop control unit is used for generating an emergency stop control signal; the secondary control unit is electrically connected with the emergency stop control unit and used for acquiring the emergency stop control signal and generating a flameout control signal based on the emergency stop control signal; and the flameout control unit is electrically connected with the secondary control unit and is used for acquiring the flameout control signal and executing corresponding flameout control operation based on the flameout control signal. The invention also discloses an emergency stop alarm method and a flameout control method. Through improving current putting out fire control system, set up extra secondary control unit on current putting out fire control system's basis, carry out timely state warning and secondary flame-out control to current putting out fire control unit according to the actual use state of engineering equipment to reduce the security threat, improve the interactive and security in the user's use, improved user experience.)

1. A misfire control system, characterized in that the control system comprises:

the emergency stop control unit is used for generating an emergency stop control signal;

the secondary control unit is electrically connected with the emergency stop control unit and used for acquiring the emergency stop control signal and generating a flameout control signal based on the emergency stop control signal;

and the flameout control unit is electrically connected with the secondary control unit and is used for acquiring the flameout control signal and executing corresponding flameout control operation based on the flameout control signal.

2. The control system of claim 1, wherein the secondary control unit comprises an emergency stop status monitoring module and a flameout secondary control module;

the emergency stop state monitoring module is used for acquiring the emergency stop control signal and generating corresponding emergency stop monitoring information based on the emergency stop control signal;

the flameout secondary control module is electrically connected with the emergency stop state monitoring module and is used for acquiring the emergency stop monitoring information and generating a corresponding flameout control signal based on the emergency stop monitoring information;

the secondary control unit further comprises an alarm module, the emergency stop state monitoring module generates corresponding alarm information based on the emergency stop control signal, and the alarm module is electrically connected with the emergency stop state monitoring module and used for acquiring the alarm information and executing corresponding alarm operation based on the alarm information.

3. The control system of claim 2, further comprising an engine control unit for generating an engine status signal;

the secondary control unit further comprises an engine monitoring module which is electrically connected with the engine control unit and used for acquiring the engine state signal;

the alarm module is also electrically connected with the engine monitoring module and used for executing corresponding alarm operation based on the alarm information and the engine state signal.

4. The control system according to claim 1, wherein the secondary control unit is a periodic signal generating circuit, the periodic signal generating circuit includes a circuit input end and a circuit output end, the circuit input end is electrically connected to the emergency stop control unit and is configured to obtain the emergency stop control signal, and the periodic signal generating circuit is further configured to generate a corresponding periodic signal based on the emergency stop control signal and send the periodic signal to the flameout control unit through the power output end.

5. The control system of claim 1, further comprising an engine control unit and an alarm module, wherein the secondary control unit is a controller, wherein the controller comprises a first input, a second input, and a first output and a second output, wherein the first input is electrically connected to the emergency stop control unit, the second input is electrically connected to the engine control unit, the first output is electrically connected to the shutdown control unit, and the second output is electrically connected to the alarm module.

6. A misfire control system, characterized in that the control system comprises:

the emergency stop control unit is used for generating an emergency stop control signal;

the secondary control unit is electrically connected with the emergency stop control unit and used for acquiring the emergency stop control signal and generating a flameout auxiliary signal based on the emergency stop control signal;

the flameout auxiliary unit is electrically connected with the secondary control unit and is used for executing corresponding flameout auxiliary actions based on the flameout auxiliary signal;

and the flameout control unit is electrically connected with the emergency stop control unit and the flameout auxiliary unit and is used for executing corresponding flameout control operation based on the emergency stop control signal or according to the flameout auxiliary action.

7. The control system of claim 6, further comprising an engine control unit for generating an engine status signal;

the secondary control unit is also electrically connected with the engine control unit and used for acquiring the engine state signal and generating the flameout auxiliary signal based on the emergency stop control signal and the engine state signal.

8. An emergency stop warning method of a control system according to any one of claims 1 to 5, wherein the warning method comprises:

judging whether an emergency stop control signal is acquired or not;

generating flameout alarm information under the condition of acquiring the emergency stop control signal;

and executing corresponding flameout alarm operation based on the flameout alarm information.

9. The warning method according to claim 8, wherein after the emergency stop control signal is acquired, the warning method further comprises:

acquiring engine rotating speed information;

judging whether the corresponding engine speed is greater than zero or not based on the engine speed information;

generating the flameout alarm information under the condition that the rotating speed of the engine is greater than zero;

and under the condition that the engine speed is less than or equal to zero, forbidding to execute flameout alarm operation.

10. A misfire control method of the control system according to any one of claims 1-5, characterized by comprising:

judging whether an emergency stop control signal is acquired or not;

under the condition that the emergency stop control signal is acquired, generating a flameout control signal based on the emergency stop control signal;

and executing corresponding flameout control operation based on the flameout control signal.

11. The control method according to claim 10, characterized by, after acquiring the scram control signal, further comprising:

acquiring engine rotating speed information;

judging whether the corresponding engine speed is greater than zero or not based on the engine speed information;

generating a stall control signal based on the scram control signal if the engine speed is greater than zero.

12. The control method according to claim 11, characterized in that in the case where the engine speed is greater than zero, the control method further includes:

acquiring the duration of the engine rotating speed being greater than zero;

judging whether the duration time is greater than a preset time threshold value or not;

generating a first flameout control signal based on the scram control signal if the duration is greater than the preset time threshold;

and generating a second flameout control signal based on the emergency stop control signal under the condition that the duration is less than or equal to the preset time threshold.

13. The control method of claim 12, wherein the first misfire control signal is a periodic pulse misfire control signal and the second misfire control signal is a step misfire control signal.

14. A misfire control method of the control system according to claim 6 or 7, characterized by comprising:

judging whether an emergency stop control signal is acquired or not;

under the condition that the emergency stop control signal is acquired, generating a flameout auxiliary signal based on the emergency stop control signal;

performing a corresponding misfire assist action based on the misfire assist signal;

and executing corresponding flameout control operation based on the scram control signal or according to the flameout auxiliary action.

15. The control method according to claim 14, characterized in that after the emergency stop control signal is acquired, the control method further comprises:

acquiring engine rotating speed information;

judging whether the corresponding engine speed is greater than zero or not based on the engine speed information;

acquiring the duration of the engine rotating speed being greater than zero under the condition that the engine rotating speed is greater than zero;

judging whether the duration time is greater than a preset time threshold value or not;

generating the flameout assistance signal based on the scram control signal if the duration is greater than the preset time threshold;

and prohibiting the flameout assisting action from being executed when the duration is less than or equal to the preset time threshold.

16. An engineering plant, characterized in that the engineering plant is provided with a control system according to any one of claims 1-7.

17. A computer-readable storage medium, on which a computer program is stored, which program, when being executed by a processor, is adapted to carry out the emergency stop warning method of claim 8 or 9 or the misfire control method of any one of claims 10-15.

Technical Field

The invention relates to the technical field of equipment control, in particular to a flameout control system, an emergency stop alarm method, a flameout control method and engineering equipment.

Background

According to the relevant state regulations for engineering equipment, the stop function of the engineering equipment (e.g. a car) should deny the relevant start function, in particular for the emergency stop function, all other functions and all operations in the working mode.

In the prior art, the engineering equipment is powered by a dedicated automobile chassis, and the engineering equipment sends a corresponding control signal to the power plant through the dedicated automobile chassis to realize the control of the power plant, for example, by inserting a key at a start switch and rotating to a corresponding position to trigger a start function, or rotating the key to another second position to trigger a stop function, in which case the engineering equipment should not be able to trigger the start function by other conditions or states.

However, in the actual application process, technicians find that the control performance of the special automobile chassis with part of engineering equipment cannot meet the existing national regulations, that is, the special automobile chassis can still start the corresponding power device after the engineering equipment triggers the stop function, or the special automobile chassis cannot normally control due to failure of response to a control signal in the use process, so that great potential safety threats exist, the actual requirements of users cannot be met, and the user experience is reduced.

Disclosure of Invention

In order to solve the technical problems that a flameout control system in the prior art cannot meet actual safety requirements, so that potential safety risks are high, and user experience is low, embodiments of the invention provide a flameout control system, an emergency stop alarm method, a flameout control method and engineering equipment.

In order to achieve the above object, an embodiment of the present invention provides a misfire control system, including: the emergency stop control unit is used for generating an emergency stop control signal; the secondary control unit is electrically connected with the emergency stop control unit and used for acquiring the emergency stop control signal and generating a flameout control signal based on the emergency stop control signal; and the flameout control unit is electrically connected with the secondary control unit and is used for acquiring the flameout control signal and executing corresponding flameout control operation based on the flameout control signal.

Preferably, the secondary control unit comprises an emergency stop state monitoring module and a flameout secondary control module, and the emergency stop state monitoring module is used for acquiring the emergency stop control signal and generating corresponding emergency stop monitoring information based on the emergency stop control signal; the flameout secondary control module is electrically connected with the emergency stop state monitoring module and is used for acquiring the emergency stop monitoring information and generating a corresponding flameout control signal based on the emergency stop monitoring information; the secondary control unit further comprises an alarm module, the emergency stop state monitoring module generates corresponding alarm information based on the emergency stop control signal, and the alarm module is electrically connected with the emergency stop state monitoring module and used for acquiring the alarm information and executing corresponding alarm operation based on the alarm information.

Preferably, the control system further comprises an engine control unit for generating an engine status signal; the secondary control unit further comprises an engine monitoring module which is electrically connected with the engine control unit and used for acquiring the engine state signal; the alarm module is also electrically connected with the engine monitoring module and used for executing corresponding alarm operation based on the alarm information and the engine state signal.

Preferably, the secondary control unit is a periodic signal generating circuit, the periodic signal generating circuit includes a circuit input end and a circuit output end, the circuit input end is electrically connected with the emergency stop control unit and is used for acquiring the emergency stop control signal, the periodic signal generating circuit is further used for generating a corresponding periodic signal based on the emergency stop control signal and sending the periodic signal to the flameout control unit through the electric quantity output end.

Preferably, the control system further comprises an engine control unit and an alarm module, the secondary control unit is a controller, the controller comprises a first input end, a second input end, a first output end and a second output end, the first input end is electrically connected with the emergency stop control unit, the second input end is electrically connected with the engine control unit, the first output end is electrically connected with the flameout control unit, and the second output end is electrically connected with the alarm module.

In another aspect, the present invention further provides a misfire control system comprising: the emergency stop control unit is used for generating an emergency stop control signal; the secondary control unit is electrically connected with the emergency stop control unit and used for acquiring the emergency stop control signal and generating a flameout auxiliary signal based on the emergency stop control signal; the flameout auxiliary unit is electrically connected with the secondary control unit and is used for executing corresponding flameout auxiliary actions based on the flameout auxiliary signal; and the flameout control unit is electrically connected with the emergency stop control unit and the flameout auxiliary unit and is used for executing corresponding flameout control operation based on the emergency stop control signal or according to the flameout auxiliary action.

Preferably, the control system further comprises an engine control unit for generating an engine status signal; the secondary control unit is also electrically connected with the engine control unit and used for acquiring the engine state signal and generating the flameout auxiliary signal based on the emergency stop control signal and the engine state signal.

Correspondingly, the invention also provides an emergency stop alarm method, which comprises the following steps: judging whether an emergency stop control signal is acquired or not; generating flameout alarm information under the condition of acquiring the emergency stop control signal; and executing corresponding flameout alarm operation based on the flameout alarm information.

Preferably, after the emergency stop control signal is acquired, the alarm method further includes: acquiring engine rotating speed information; judging whether the corresponding engine speed is greater than zero or not based on the engine speed information; generating the flameout alarm information under the condition that the rotating speed of the engine is greater than zero; and under the condition that the engine speed is less than or equal to zero, forbidding to execute flameout alarm operation.

In another aspect, the present invention further provides a flameout control method, including: judging whether an emergency stop control signal is acquired or not; under the condition that the emergency stop control signal is acquired, generating a flameout control signal based on the emergency stop control signal; and executing corresponding flameout control operation based on the flameout control signal.

Preferably, after the emergency stop control signal is acquired, the control method further includes: acquiring engine rotating speed information; judging whether the corresponding engine speed is greater than zero or not based on the engine speed information; generating a stall control signal based on the scram control signal if the engine speed is greater than zero.

Preferably, in the case where the engine speed is greater than zero, the control method further includes: acquiring the duration of the engine rotating speed being greater than zero; judging whether the duration time is greater than a preset time threshold value or not; generating a first flameout control signal based on the scram control signal if the duration is greater than the preset time threshold; and generating a second flameout control signal based on the emergency stop control signal under the condition that the duration is less than or equal to the preset time threshold.

Preferably, the first flameout control signal is a periodic pulse flameout control signal, and the second flameout control signal is a step flameout control signal.

In another aspect, the present invention further provides a flameout control method, including: judging whether an emergency stop control signal is acquired or not; under the condition that the emergency stop control signal is acquired, generating a flameout auxiliary signal based on the emergency stop control signal; performing a corresponding misfire assist action based on the misfire assist signal; and executing corresponding flameout control operation based on the scram control signal or according to the flameout auxiliary action.

Preferably, after the emergency stop control signal is acquired, the control method further includes: acquiring engine rotating speed information; judging whether the corresponding engine speed is greater than zero or not based on the engine speed information; acquiring the duration of the engine rotating speed being greater than zero under the condition that the engine rotating speed is greater than zero; judging whether the duration time is greater than a preset time threshold value or not; generating the flameout assistance signal based on the scram control signal if the duration is greater than the preset time threshold; and prohibiting the flameout assisting action from being executed when the duration is less than or equal to the preset time threshold.

In another aspect, the invention further provides engineering equipment, and the engineering equipment is provided with the control system provided by the invention.

In another aspect, the present invention also provides a computer-readable storage medium, on which a computer program is stored, which when executed by a processor implements the method provided by the present invention.

Through improving current putting out fire control system, set up extra secondary control unit on current putting out fire control system's basis, carry out timely state warning and secondary flame-out control to current putting out fire control unit according to the actual use state of engineering equipment to reduce the security threat, improve the interactive and security in the user's use, improved user experience.

Additional features and advantages of the invention will be set forth in the detailed description which follows.

Drawings

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

fig. 1 is a schematic structural diagram of a first misfire control system provided in accordance with an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a secondary control unit in the first flameout control system according to the embodiment of the present invention;

fig. 3 is a schematic structural diagram of a first misfire control system in accordance with another embodiment of the present invention;

fig. 4 is a schematic diagram of a secondary control unit in a first flameout control system according to an embodiment of the present invention being a periodic signal generating circuit;

fig. 5 is a schematic diagram of a secondary control unit as a controller in a first flameout control system according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a second misfire control system provided in accordance with an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a second misfire control system in accordance with another embodiment of the present invention;

FIG. 8 is a flowchart illustrating an implementation of an emergency stop warning method according to an embodiment of the present invention;

fig. 9 is a flowchart illustrating a first flameout control method according to an embodiment of the present invention;

fig. 10 is a flowchart illustrating a second misfire control method according to an embodiment of the present invention.

Detailed Description

In order to solve the technical problems that a flameout control system in the prior art cannot meet actual safety requirements, so that potential safety risks are high, and user experience is low, embodiments of the invention provide a flameout control system, an emergency stop alarm method, a flameout control method and engineering equipment.

The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

The terms "system" and "network" in embodiments of the present invention may be used interchangeably. The "plurality" means two or more, and in view of this, the "plurality" may also be understood as "at least two" in the embodiments of the present invention. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" generally indicates that the preceding and following related objects are in an "or" relationship, unless otherwise specified. In addition, it should be understood that the terms first, second, etc. in the description of the embodiments of the invention are used for distinguishing between the descriptions and are not intended to indicate or imply relative importance or order to be construed.

Referring to fig. 1, the present invention provides a flameout control system, which includes: the emergency stop control unit is used for generating an emergency stop control signal; the secondary control unit is electrically connected with the emergency stop control unit and used for acquiring the emergency stop control signal and generating a flameout control signal based on the emergency stop control signal; and the flameout control unit is electrically connected with the secondary control unit and is used for acquiring the flameout control signal and executing corresponding flameout control operation based on the flameout control signal.

In one possible embodiment, a driver drives a piece of engineering equipment (for example, the piece of engineering equipment is an excavator) to perform an engineering task on a construction site, for example, an emergency stop control unit of the excavator is a start-stop switch, before the engineering task is executed, a driver inserts a key into a start-stop switch and rotates the key to a corresponding position to start the excavator, and after the engineering task is completed, the driver rotates the key back to the default position and pulls out the key to generate and send an emergency stop control signal to the secondary control unit, the secondary control unit immediately generates a corresponding flameout control signal after acquiring the emergency stop control signal and sends the flameout control signal to the flameout control unit, for example, in the embodiment of the present invention, the stall control unit is an engine control unit, and the stall control unit executes a corresponding stall control operation immediately after acquiring the stall control signal.

Referring to fig. 2, in an embodiment of the present invention, the secondary control unit includes an emergency stop state monitoring module, which is configured to stall the secondary control module, and the emergency stop state monitoring module is configured to acquire the emergency stop control signal and generate corresponding emergency stop monitoring information based on the emergency stop control signal; the flameout secondary control module is electrically connected with the emergency stop state monitoring module and is used for acquiring the emergency stop monitoring information and generating a corresponding flameout control signal based on the emergency stop monitoring information; the secondary control unit further comprises an alarm module, the emergency stop state monitoring module generates corresponding alarm information based on the emergency stop control signal, and the alarm module is electrically connected with the emergency stop state monitoring module and used for acquiring the alarm information and executing corresponding alarm operation based on the alarm information.

In a possible implementation manner, the emergency stop state monitoring module is electrically connected with the emergency stop control unit and is used for monitoring whether an emergency stop control signal sent by the emergency stop control unit is obtained in real time, if the emergency stop control signal is obtained, corresponding alarm information and emergency stop monitoring information are immediately generated, at this moment, the emergency stop state monitoring module sends the alarm information to the alarm module, and the alarm module executes corresponding alarm operation.

In the embodiment of the invention, the additional alarm function is arranged on the basis of the existing flameout control system, so that the corresponding prompt information can be automatically sent to the user according to the scram control information sent by the scram control unit after the user executes the scram action to prompt the user to execute the scram operation at present, the technical problem that whether the engineering equipment really executes the scram operation or not cannot be obtained after the user operates the scram action in the prior art is effectively solved, the interactivity between the engineering equipment and the user is greatly enhanced, and the user experience is improved.

Meanwhile, the flameout secondary control module immediately generates a corresponding flameout control signal after acquiring the sudden stop monitoring information sent by the sudden stop state monitoring module, and the flameout secondary control module sends the flameout control signal to the flameout control unit so as to control the flameout control unit to execute the corresponding flameout control operation.

Further, referring to fig. 3, in the embodiment of the present invention, the control system further includes an engine control unit, where the engine control unit is configured to generate an engine status signal; the secondary control unit further comprises an engine monitoring module which is electrically connected with the engine control unit and used for acquiring the engine state signal; the alarm module is also electrically connected with the engine monitoring module and used for executing corresponding alarm operation based on the alarm information and the engine state signal.

In a possible implementation manner, after the alarm information is obtained, the alarm module further obtains the engine state information sent by the engine control unit through the engine monitoring module, and the alarm module judges whether to execute an alarm operation according to the engine rotation speed information.

In the embodiment of the invention, the alarm information is comprehensively generated according to the actual working states of the emergency stop control unit and the driving device of the current engineering equipment, and the user is prompted to alarm, so that the accuracy of the generated alarm information is further improved, the occurrence of false alarm conditions is avoided, the user experience is improved, the safety of the user in the process of using the engineering equipment is improved, and the personal safety threat caused by the fact that the user does not know because the engineering equipment does not actually stop running is avoided.

Referring to fig. 4, in an embodiment of the present invention, the secondary control unit is a periodic signal generating circuit, the periodic signal generating circuit includes a circuit input end and a circuit output end, the circuit input end is electrically connected to the emergency stop control unit and is configured to obtain the emergency stop control signal, and the periodic signal generating circuit is further configured to generate a corresponding periodic signal based on the emergency stop control signal and send the periodic signal to the flameout control unit through the electric quantity output end.

In one possible embodiment, the secondary control unit is a periodic pulse generating circuit including, but not limited to, a periodic pulse generating circuit consisting of an electronic circuit or a time relay. In the embodiment of the present invention, the emergency stop control unit is electrically connected to the enable signal input terminal, and when the current engineering equipment is in use, the emergency stop control unit monitors that a dangerous fault occurs in the current engineering equipment, for example, an emergency shutdown signal sent by a corresponding controller due to the fact that the temperature of the equipment oil exceeds a preset temperature value on the current engineering equipment is detected, so that the emergency stop control unit immediately generates a corresponding high level signal (emergency stop control signal), after the enable new terminal of the periodic pulse generation circuit detects the high level signal, the enable function of the enable terminal is triggered, and at this time, the periodic pulse generation circuit automatically generates a pulse signal according to a preset period (for example, in the embodiment of the present invention, the preset period is 0.1-0.5s), and continuously sending the periodic pulse signal to a flameout control unit through an output end, and immediately executing periodic flameout operation after the flameout control unit obtains the periodic pulse signal.

It should be noted that the secondary control unit may also be a periodic signal generating circuit in other forms, for example, a square wave generating circuit, and the like, and also fall within the protection scope of the present invention.

Referring to fig. 5, in an embodiment of the present invention, the control system further includes an engine control unit and an alarm module, the secondary control unit is a controller, the controller includes a first input end, a second input end, a first output end and a second output end, the first input end is electrically connected to the emergency stop control unit, the second input end is electrically connected to the engine control unit, the first output end is electrically connected to the flameout control unit, and the second output end is electrically connected to the alarm module.

In the embodiment of the invention, the controller is used as the secondary control unit, so that the secondary control unit is allowed to open more data communication ports to acquire a plurality of parameters to jointly execute the data analysis function, and meanwhile, the high data processing capacity of the controller can also improve the data processing efficiency of the secondary control unit, thereby further improving the accuracy of alarm prompting, the accuracy of flameout control and the safety of user experience and use of engineering equipment.

In another aspect, referring to fig. 6, the present invention further provides a misfire control system, including: the emergency stop control unit is used for acquiring an emergency stop control signal; the secondary control unit is electrically connected with the emergency stop control unit and used for acquiring the emergency stop control signal and generating a flameout auxiliary signal based on the emergency stop control signal; the flameout auxiliary unit is electrically connected with the secondary control unit and is used for executing corresponding flameout auxiliary actions based on the flameout auxiliary signal; and the flameout control unit is electrically connected with the emergency stop control unit and the flameout auxiliary unit and is used for executing corresponding flameout control operation based on the emergency stop control signal or according to the flameout auxiliary action.

Further, referring to fig. 7, in the embodiment of the present invention, the control system further includes an engine control unit, and the engine control unit is configured to generate an engine status signal; the secondary control unit is also electrically connected with the engine control unit and used for acquiring the engine state signal and generating the flameout auxiliary signal based on the emergency stop control signal and the engine state signal.

In the embodiment of the invention, the existing flameout control system is improved, and the secondary control unit and the flameout auxiliary unit are connected in parallel between the scram control unit and the flameout control unit, so that on one hand, the secondary control unit generates a more accurate and more stable flameout control signal for the flameout control unit according to the actual operation condition of the engineering equipment, the effective control on the flameout function of the engineering equipment is realized, and the use safety and the user experience of the engineering equipment are improved; on the other hand, the functions can be realized without changing or adjusting the existing control system, and the improvement and the popularization of the product in use are facilitated.

Referring to fig. 8, correspondingly, the present invention further provides an emergency stop warning method, where the warning method includes:

s110) judging whether an emergency stop control signal is acquired;

s120) generating flameout alarm information under the condition that the emergency stop control signal is obtained;

s130) executing corresponding flameout alarm operation based on the flameout alarm information.

In this embodiment of the present invention, after the emergency stop control signal is acquired, the alarm method further includes: acquiring engine rotating speed information; judging whether the corresponding engine speed is greater than zero or not based on the engine speed information; generating the flameout alarm information under the condition that the rotating speed of the engine is greater than zero; and under the condition that the engine speed is less than or equal to zero, forbidding to execute flameout alarm operation.

In the embodiment of the invention, the flameout alarm operation includes, but is not limited to, an indicator light indication operation, a voice horn alarm operation, an audible and visual alarm operation, and other operation modes.

On the other hand, referring to fig. 9, based on the same inventive concept, the present invention further provides a flameout control method, including:

s210) judging whether an emergency stop control signal is acquired;

s220) under the condition that the emergency stop control signal is acquired, generating a flameout control signal based on the emergency stop control signal;

s230) performing a corresponding misfire control operation based on the misfire control signal.

In this embodiment of the present invention, after the emergency stop control signal is acquired, the control method further includes: acquiring engine rotating speed information; judging whether the corresponding engine speed is greater than zero or not based on the engine speed information; generating a stall control signal based on the scram control signal if the engine speed is greater than zero.

In an embodiment of the present invention, in the case where the engine speed is greater than zero, the control method further includes: acquiring the duration of the engine rotating speed being greater than zero; judging whether the duration time is greater than a preset time threshold value or not; generating a first flameout control signal based on the scram control signal if the duration is greater than the preset time threshold; and generating a second flameout control signal based on the emergency stop control signal under the condition that the duration is less than or equal to the preset time threshold.

In an embodiment of the present invention, the first flameout control signal is a periodic pulse flameout control signal, and the second flameout control signal is a step flameout control signal.

In a possible embodiment, the stall control system first determines whether an emergency stop control signal is acquired, and further acquires engine speed information if the emergency stop control signal is acquired, for example, in an embodiment of the present invention, the stall control system determines that the corresponding engine speed is greater than zero according to the engine speed information, and thus determines that the current engine is still in the running state, so as to monitor the duration that the engine speed is greater than zero, and determine whether the duration is greater than a preset time threshold, for example, in an embodiment of the present invention, the preset time threshold is preferably 0.5-2s, and when the duration is greater than the preset time threshold, the stall control system immediately generates a corresponding periodic pulse stall control signal to control a stall control unit of the engineering equipment to perform a periodic stall operation.

In the embodiment of the invention, the rotation state of the engine is further monitored in a delayed manner on the basis of the comprehensive judgment based on the engine rotation speed information and the emergency stop control signal, so that the monitoring accuracy of the running state of the engine is further improved, the situations of false alarm and false execution of active emergency stop control action caused by slow deceleration of the engine during emergency stop are avoided, the trouble of a user is avoided, the accuracy of the emergency stop control of engineering equipment is improved, and the user experience is improved.

Referring to fig. 10, on the other hand, based on the same inventive concept, the present invention further provides a misfire control method, including:

s310) judging whether an emergency stop control signal is acquired;

s320) under the condition that the emergency stop control signal is acquired, generating a flameout auxiliary signal based on the emergency stop control signal;

s330) executing a corresponding flameout auxiliary action based on the flameout auxiliary signal;

s340) executing corresponding flameout control operation based on the scram control signal or according to the flameout auxiliary action.

In this embodiment of the present invention, after acquiring the emergency stop control signal, the control method further includes: acquiring engine rotating speed information; judging whether the corresponding engine speed is greater than zero or not based on the engine speed information; acquiring the duration of the engine rotating speed being greater than zero under the condition that the engine rotating speed is greater than zero; judging whether the duration time is greater than a preset time threshold value or not; generating the flameout assistance signal based on the scram control signal if the duration is greater than the preset time threshold; and prohibiting the flameout assisting action from being executed when the duration is less than or equal to the preset time threshold.

In another aspect, the invention further provides engineering equipment, and the engineering equipment is provided with the control system provided by the invention.

Further, an embodiment of the present invention also provides a computer-readable storage medium, on which a computer program is stored, which when executed by a processor implements the method of the present invention.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.

It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the invention is not described in any way for the possible combinations in order to avoid unnecessary repetition.

Those skilled in the art will understand that all or part of the steps in the method according to the above embodiments may be implemented by a program, which is stored in a storage medium and includes several instructions to enable a single chip, a chip, or a processor (processor) to execute all or part of the steps in the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.

In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.