Belt pull rope state display and alarm method based on DSP

Abstract

The invention discloses a state display and alarm method of a belt pull rope based on a DSP (Digital Signal Processor). Comprising the following steps: numbering each pull-cord switch; the working state of each pull rope switch is monitored and displayed in real time; and when the working state of any pull-cord switch changes, the serial number of the pull-cord switch is displayed in real time. And constructing a prediction model for the historical data of each pull-cord switch so as to predict the change probability of any pull-cord switch within the set prediction duration. According to the invention, complex parameters do not need to be set for the device, and all control logics are realized in a DSP (Digital Signal Processor). The DSP processes the received data of the pull rope of the belt and transmits the processed data to the display screen and the voice alarm device, so that the detection, reminding and positioning functions of the pull rope of the belt are stably operated, and the smooth production of the belt is ensured.

Description

Technical Field

[0001] The invention belongs to the technical field of belt equipment safety intelligent protection control, and in particular relates to a belt rope state display and alarm method based on DSP. Background Art

[0002] In the belt control system, rope protection plays a very important role in belt production. The rope pull device is a control device used to protect the safety of belts and personnel. Whether the position of the rope pull can be quickly found after the rope pull switch is actuated will directly affect the maintenance personnel's monitoring, analysis and judgment of the belt operation status. Therefore, improving the positioning of the rope pull device and quickly understanding the status of the rope pull device in real time is an issue that needs to be urgently addressed.

[0003] Traditional belt pull rope devices cannot immediately distinguish whether the pull rope is in motion, and cannot immediately find the pull rope that has been in motion. Especially in the case of long belts and many belt pull rope switches, it will show obvious shortcomings during the application process. As the pull rope device plays an increasingly important role in the belt production process, once the pull rope device fails and cannot be discovered in time, it will seriously affect production. In order to adapt to the smooth movement of the belt, stable production and long-term development, it is required that new belt pull rope devices can adopt intelligent detection, and its status can be displayed on site and can provide real-time voice alarm. DSP can adapt well to complex control requirements. DSP (digital signal processor) is a unique microprocessor that uses digital signals to process large amounts of information. Its working principle is to receive analog signals, convert them into digital signals of 0 or 1, and then modify, delete, and strengthen the digital signals, and interpret the digital data back to analog data or actual environment format in other system chips. It monitors the belt pull rope status more accurately and alarms more accurately, which can effectively improve the detection and control accuracy of the pull rope device and provide reliable monitoring and control data for the belt.

[0004] The inventor of the present invention found that although the existing belt pulling device can detect the belt pulling, when the belt pulls, the operator cannot find the belt pulling position in time, especially when the belt is particularly long, and even needs to walk around the belt to find the pulling position, which is a huge challenge for maintenance personnel. Therefore, for most factories, general pulling devices are difficult to do this job, and once the belt pulls the rope, it will seriously affect the smooth running of the belt and have a significant impact on production. Summary of the invention

[0005] In order to overcome the above-mentioned defects, the purpose of the present invention is to provide a DSP-based belt pull rope status display and alarm method. There is no need to set very complex parameters for the device. The control logic of the pull rope device is implemented in the DSP, and real-time voice alarm and status display are generated, ensuring the timely discovery and accurate positioning of the belt pull rope, improving the stability of belt pull rope detection and the simplicity of maintenance, and ensuring smooth belt production.

[0006] To achieve the above objectives, the present invention provides a DSP-based belt rope status display and alarm method, comprising:

[0007] Number each pull-cord switch;

[0008] Real-time monitoring and display of the working status of each pull-cord switch;

[0009] When the working state of any pull-wire switch changes, the serial number of the pull-wire switch is displayed in real time.

[0010] Furthermore, the method also includes the step of announcing the working status of the numbered pull-cord switch by voice.

[0011] Furthermore, the method also includes a step of recording the time when the working state of the numbered pull-cord switch changes.

[0012] Furthermore, the method also includes a step of recording the time of resetting the numbered pull-cord switch.

[0013] Furthermore, the method also includes the step of calculating the working time of each pull-cord switch.

[0014] Furthermore, the method also includes a step of recording the cause of the change of the numbered pull-string switch.

[0015] Furthermore, a prediction model is constructed based on the historical data of the working time of each pull-cord switch, the time of change, the time of reset, and the reason for the change of the pull-cord switch with the same number, so as to predict the probability of any pull-cord switch changing within the set prediction time.

[0016] Furthermore, the probability of change of each pull-cord switch is displayed in real time.

[0017] The present invention does not need to set complicated parameters for the device, and all control logics are implemented in the DSP. The DSP processes the received belt pull rope data and transmits the processed data to the display screen and the voice alarm device, so that the belt pull rope detection, reminder, and positioning functions can operate stably to ensure smooth belt production. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1It is a logical structure diagram of the belt pull rope state display and alarm device based on DSP in Example 1 of the present invention;

[0019] Figure 2 It is a block diagram of the power supply system of the belt pull rope status display and alarm device based on DSP in Example 1 of the present invention.

[0020] Explanation of the accompanying drawings: 1, pull-cord switch; 2, DSP; 3, voice broadcast device; 4, display screen; 5, stabilized power supply. DETAILED DESCRIPTION

[0021] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0022] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0023] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] Embodiment 1:

[0026] Depend on Figure 1 It can be seen that this example includes four equipment units, namely, a pull-cord switch, a DSP, a display screen, and a voice broadcast device.

[0027] The pull rope switch 1 is a detection element for measuring the pull rope of the belt, and adopts a domestic general pull rope switch, which is connected to the DSP. In this embodiment, the pull rope switch 1 is installed on both sides of the belt to measure and collect the pull rope data of the belt, and transmit the pull rope data to the DSP.

[0028] DSP is the core equipment module of the whole system and the brain of the whole device. It obtains key parameters such as the belt pull rope, adopts intelligent protection control algorithm, and realizes real-time display and alarm of the pull rope status through device 3 and device 4. In order to improve control accuracy and data processing capability, the DSP in this embodiment selects C2000 series DSP products mainly used in digital control systems.

[0029] The display screen 3 can be an LCD screen or an LED display screen, etc., which is used to display the various status parameters and reminder parameters of the rope pulling device. When a problem occurs in the system, online help for solutions can also be provided. At the same time, the control authority and status of the rope pulling device can be exchanged with the main system in real time to achieve real-time data communication. In order to improve the visibility and interchangeability of the device, the display screen uses a domestic general brand. The maintenance personnel only need to check the fault content and maintenance information on the display screen, and can quickly eliminate the fault according to the maintenance information, so that the belt can quickly resume production.

[0030] The voice broadcast device 4 is a device for broadcasting the belt pull rope status to the outside world and locating the pull rope position. When the pull rope situation occurs, the voice broadcast device voice broadcasts the belt pull rope status to the relevant maintenance personnel according to the set voice type, and provides the pull rope position, so that the maintenance personnel can quickly find the pull rope position and understand the pull rope situation in time.

[0031] Figure 2 The power supply system block diagram in the embodiment 1 of the present invention is schematically shown. The control device further includes an AC power supply module and a DC power supply module, both of which are arranged in the controller. Figure 2 As shown, the power supply 220V is used to power the pull-cord switch 1 and the voice broadcast device 3. The power conversion device 5 is specifically a voltage conversion and voltage stabilization device. Embodiment 1 of the present invention is used to convert the AC220V power supplied into a DC24V direct current power supply, and to power the DSP and the display screen 4 through the direct current power supply. In addition, the voice broadcast device, the DSP, and the power conversion device are all installed in the controller, and the display screen of the device 4 is connected to the DSP and fixedly installed on the controller.

[0032] A belt pull rope state display and alarm device control method based on DSP is provided in Example 1 of the present invention, and the following reference is made to Figure 1 The control device shown in the figure is used to describe the control method of this embodiment as follows. In this embodiment, the control method includes the following steps:

[0033] Step S1, obtaining the current pull rope state of the belt through the pull rope switch;

[0034] Step S2, judging the current pull rope state of the belt through DSP, and determining the belt pull rope display data and alarm data according to the judgment result.

[0035] Furthermore, step S2 also includes: transmitting the status data and alarm data to the display screen and the voice broadcast device through the DSP,

[0036] Furthermore, if the display screen receives belt pull rope related parameters transmitted by DSP, the display screen will display the pull rope status, the time when the pull rope action occurs, the pull rope reset time, the pull rope action duration, etc. in real time.

[0037] Furthermore, if the voice alarm device receives the belt drawstring related parameters transmitted by the DSP, the voice alarm device will broadcast the drawstring status and the action drawstring position and duration to the outside world by voice.

[0038] Furthermore, a prediction model is constructed based on the historical data of the working time of each pull-wire switch, the time of change, the time of reset, and the cause of the change of the pull-wire switch with the same number, so as to predict the probability of any pull-wire switch changing within the set prediction time. The cause of the change of the pull-wire switch with the same number may be motor damage, belt damage, material damage, human factors, etc.

[0039] In summary, some of the above embodiments of the present invention also have the following advantages:

[0040] 1) The DSP-based belt pull rope status display and alarm device provided in the present invention is an intelligent protection control device. Through the DSP intelligent protection control algorithm, the current status and parameters of the pull rope can be accurately calculated, and then the stable operation of the pull rope device can be controlled through the device 3 voice broadcast device and the device 4 display screen, so as to achieve accurate and stable operation of the pull rope device under any circumstances.

[0041] 2) The pull rope status display and alarm intelligent protection control device in the present invention can accurately monitor the pull rope status of the belt in real time, and display the pull rope status in time, and voice broadcast the pull rope status and action position. It greatly improves the detection method of the pull rope in belt production, improves the stability of belt production, and lays the foundation for ensuring smooth and stable production of belts.

[0042] 3) In the present invention, based on DSP control, there is no need to set complex parameters for the device, and debugging is simple. The maintenance personnel only need to check the fault content and maintenance information on the display screen of the control device, and can quickly eliminate the fault according to the maintenance information, so that the belt can quickly resume production.

[0043] 4) The pull rope status display and alarm intelligent protection control device of the present invention has a simple structure, is easy to install and use, and has outstanding practical value in belts and related places.

[0044] The present invention is described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of ordinary technicians in the field without departing from the purpose of the present invention. Many other changes and modifications that do not depart from the concept and scope of the present invention should be regarded as the protection scope of the present invention.

[0045] In the description of this specification, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0046] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A DSP-based belt pull rope status display and alarm method, characterized in that: The control method comprises: Number each pull-cord switch; Real-time monitoring and display of the working status of each pull-cord switch; When the working state of any pull-wire switch changes, the serial number of the pull-wire switch is displayed in real time.

2. The DSP-based belt pull rope status display and alarm method according to claim 1, characterized in that: The method also includes the step of announcing the working status of the numbered pull-string switch by voice.

3. The DSP-based belt pull rope status display and alarm method according to claim 2, characterized in that: The method also includes the step of recording the time when the working state of the numbered pull-rope switch changes.

4. The DSP-based belt pull rope status display and alarm method according to claim 3, characterized in that: The method also includes the step of recording the time of resetting the numbered pull-rope switch.

5. The DSP-based belt pull rope status display and alarm method according to claim 4, characterized in that: The method also includes the step of calculating the working time of each pull-cord switch.

6. The DSP-based belt pull rope status display and alarm method according to claim 5, characterized in that: The method also includes a step of recording the cause of the change in the numbered pull-rope switch.

7. The DSP-based belt pull rope status display and alarm method according to claim 6, characterized in that: Also includes: A prediction model is constructed based on the historical data of the working time of each pull-cord switch, the time of change, the time of reset, and the reason for the change of the pull-cord switch with the same number, so as to predict the probability of any pull-cord switch changing within the set prediction time.

8. The DSP-based belt pull rope status display and alarm method according to claim 7, characterized in that: Also included is a real-time display of the probability of change of each pull-rope switch.

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