Intelligent pressure plate remote monitoring system based on double-confirmation detection synchronization

Abstract

The invention discloses an intelligent pressure plate remote monitoring system based on double-confirmation detection synchronization, which comprises a non-contact sensing mechanism, integrates state double confirmation of optical detection and magnetic induction detection, performs double judgment of a pressure plate state and critical position judgment through synchronous boundary dynamic verification, and comprises an intelligent pressure plate assembly, a remote monitoring system and a remote monitoring system, the optical detection assembly controls on-off of an optical path through switching of the transparent area and the shielding area of the light guide column so as to identify the rotation angle of the pressing plate. The guide rail type sensor array detects the induction stroke of the pressing plate through magnetic induction of the magnetic induction piece, and the magnetic induction boundary of the magnetic induction switch is dynamically synchronous with the light path switching boundary of the light guide column; a wireless collector; the pressing plate control device is further in wireless communication with the wireless collector, and the pressing plate control device carries out synchronous boundary logic processing on the double-confirmation signal and outputs a double-confirmation state; provided is a pressing plate management system. Through the arrangement, the problem of asynchronous signal induction of detection of different sources in a pressing plate double-confirmation detection scheme is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of power protection pressure plates, and particularly relates to an intelligent pressure plate remote monitoring system based on dual-confirmation detection synchronization. Background Art

[0002] Traditional pressure plate status detection mostly relies on manual visual inspection or simple electrical contact feedback. However, the traditional detection methods have the following problems: remote real-time monitoring cannot be achieved, the efficiency of manual inspection tours is low and it is easy to miss detections; electrical contact type detection has a risk of poor contact, and it needs to be electrically connected to the pressure plate body, which may introduce interference.

[0003] The detection means for the status detection of power protection pressure plates are relatively single, the reliability is insufficient, and there is a lack of remote operation and real-time status monitoring functions. At present, in some related technologies, a dual-confirmation scheme is adopted to detect the status of the pressure plate. However, the detection of different sources often has the problem of signal induction asynchronization, resulting in abnormal status judgment and misjudgment of the system. Therefore, it is urgent to solve the problem of induction synchronization when meeting the dual-confirmation of the status. Summary of the Invention

[0004] The present invention mainly provides an intelligent pressure plate remote monitoring system based on dual-confirmation detection synchronization to solve the problem of signal induction asynchronization in the detection of different sources in the current dual-confirmation detection scheme of the pressure plate.

[0005] To achieve the above object, the present invention proposes an intelligent pressure plate remote monitoring system based on dual-confirmation detection synchronization, including:

[0006] A non-contact sensing mechanism, integrating dual-confirmation of optical detection and magnetic induction detection, realizing dual discrimination of the pressure plate status and precise determination of the critical position through synchronous boundary dynamic verification, including an intelligent pressure plate component and a rail-mounted sensor array; wherein,

[0007] The intelligent pressure plate component includes a main control module, an optical detection component, and a pressure plate body with a magnetic induction element and rotatably arranged. The optical detection component controls the on-off of the optical path by switching the transparent area and the occlusion area of the light guide column to identify the rotation angle of the pressure plate, and the main control module is used to collect information on the rotation angle of the pressure plate;

[0008] The rail-mounted sensor array includes a magnetic induction switch, detecting the induction stroke of the pressure plate through the magnetic induction of the magnetic induction element, and the magnetic induction boundary of the magnetic induction switch is dynamically synchronized with the optical path switching boundary of the light guide column;

[0009] A wireless collector, used to collect the on-off status information of the pressure plate detected by the rail-mounted sensor array;

[0010] The platen control device communicates with the main control module. The main control module sends the collected platen rotation angle information to the platen control device and also communicates wirelessly with the wireless collector. The wireless collector sends the collected platen insertion / removal status information to the platen control device. The platen control device performs synchronous boundary logic processing on the double-confirmation signal and outputs the double-confirmation status;

[0011] The platen management system performs system data interaction with the platen control device.

[0012] In some embodiments of the present invention, the induction stroke S of the magnetic induction element and the rotation angle θ of the light guide column satisfy a linear mapping relationship: S = X·tanθ;

[0013] where X is the vertical height from the magnetic induction element to the magnetic induction switch. When the platen rotates to the critical position, the magnetic field induction boundary of the magnetic induction switch and the optical path switching boundary of the light guide column trigger signal jumps synchronously.

[0014] In some embodiments of the present invention, when the magnetic induction element sweeps through the induction stroke S1, it triggers the induction boundary of the magnetic induction switch and the optical path switching boundary when the light guide column rotates by the angle θ1 synchronously. At this time, the linear mapping relationship is satisfied: S1 = X·tanθ1;

[0015] When the magnetic induction element sweeps through the induction stroke S2 and the light guide column rotates by the angle θ2, the magnetic induction switch cannot detect the magnetic signal and the optical detection component cannot detect the optical signal. At this time, the linear mapping relationship is satisfied: S2 = X·tanθ2.

[0016] In some embodiments of the present invention, the platen control device executes the following logic:

[0017] When the platen operation is authorized and the magnetic induction detection is consistent with the optical detection, output the insertion / removal status;

[0018] When the platen operation is not authorized and the magnetic induction detection is inconsistent with the optical detection, output an abnormal status and give an alarm;

[0019] When the platen operation is not authorized and the magnetic induction detection is consistent with the optical detection, output the insertion / removal status and record the operation.

[0020] In some embodiments of the present invention, the optical detection component includes a light emitter and a light receiver. The light emitter and the light receiver are respectively arranged on both sides of the light guide column, and the optical path between the light emitter and the light receiver passes through the axis of the light guide column.

[0021] In some embodiments of the present invention, when the light guide column rotates by an angle θ1, the boundary of the shielding area coincides with the optical path between the light emitter and the light receiver, and the angular range corresponding to the arc length of the shielding area is: θ2 - θ1 < α < 180° - θ1.

[0022] In some embodiments of the present invention, the communication between the wireless collector and the platen control device adopts a point-to-point short-range wireless communication method and supports encrypted data transmission.

[0023] In some embodiments of the present invention, the rail-type sensor further includes a rail body and a plurality of sensors. The plurality of sensors are arranged on the rail body and can be slidably adjusted along the length direction of the rail body. The plurality of sensors are adaptively arranged according to the layout of the platen;

[0024] The sensor includes a magnetic induction switch and a sensing module. The magnetic induction switch adopts non-contact induction with the magnetic induction element, and the communication between the sensing module and the wireless collector adopts a wireless method.

[0025] In some embodiments of the present invention, the platen management system includes:

[0026] A real-time status monitoring module for displaying the current status of the platen;

[0027] An abnormal alarm module for triggering an alarm when an abnormal status is detected;

[0028] An operation record module for recording the operation permissions and operation history of the platen.

[0029] In some embodiments of the present invention, the main control module includes a central processing unit and a communication module. The central processing unit communicates with the platen control device through the communication module;

[0030] The intelligent platen assembly further includes a remote control module and a status indicator light. The remote control module is electrically connected to the central processing unit and is used to control the conversion of the platen body between the engaged state and the disengaged state. The status indicator light is electrically connected to the central processing unit and is used for abnormal displacement alarm indication of the platen.

[0031] The beneficial effects of the present invention are as follows: Different from the prior art, the intelligent pressure plate remote monitoring system based on dual-confirmation detection synchronization disclosed by the present invention realizes dual discrimination of the pressure plate state and precise determination of the critical position through a non-contact sensing mechanism with dual-confirmation of state integrating optical detection and magnetic induction detection. The magnetic induction boundary of the magnetic induction switch is dynamically synchronized with the optical path switching boundary of the light guide column, so as to synchronously and collaboratively perform dual-confirmation determination on the input state or withdrawal state of the pressure plate. That is, the pressure plate control device compares the input and withdrawal state information of the pressure plate detected by the optical detection component and the guide rail sensor array, and performs dual-channel synchronous detection and dual-state verification. In this way, when detecting from different sources, the problem of abnormal judgment of the pressure plate state caused by asynchronous induction signals, which leads to misjudgment of the system, is effectively avoided, the accuracy of pressure plate state judgment is greatly improved, and the system false alarm is greatly reduced.

[0032] Moreover, both the optical detection and the magnetic induction detection are carried out in a non-contact manner, and wireless network communication can also be realized. The real-time acquisition and transmission of remote state information are realized by using wireless communication, without the need for manual on-site operation, and the remote precise control and real-time dual-confirmation monitoring of the pressure plate state can be realized. The problems of missed detection by manual and the risk of poor contact existing in traditional electrical contact detection can be avoided. The dual-confirmation detection induction signals are synchronized and coordinated, and the detection means are effective and reliable, greatly improving the accuracy of pressure plate state detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for description in the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0034] Figure 1 Schematic diagram of the intelligent pressure plate remote monitoring system based on dual-confirmation detection synchronization of the present invention;

[0035] Figure 2 Schematic diagram of the detection principle of the intelligent pressure plate component of the present invention;

[0036] Figure 3 Schematic diagram of the process of magnetic induction state detection of the present invention;

[0037] Figure 4 Schematic diagram of the process of optical state detection of the present invention.

[0038] The realization, functional characteristics and advantages of the object of the present invention will be further described with reference to the embodiments and the drawings. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0039] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0040] In the present invention, unless otherwise clearly defined and limited, terms such as "connection" and "fixation" shall be understood in a broad sense. For example, "fixation" may be a fixed connection, a detachable connection, or integrated into one body; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0041] In addition, in the present invention, descriptions such as "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0042] The present invention proposes an intelligent pressure plate remote monitoring system based on dual-confirmation detection synchronization, as Figure 1 and Figure 2 shown. The intelligent pressure plate remote monitoring system based on dual-confirmation detection synchronization includes:

[0043] A non-contact sensing mechanism that integrates the state dual-confirmation of optical detection and magnetic induction detection, and realizes the dual discrimination of the pressure plate state and the critical position determination through synchronous boundary dynamic verification, including an intelligent pressure plate component and a rail-type sensor array; wherein,

[0044] The intelligent pressure plate component includes a main control module, an optical detection component, and a pressure plate body with a magnetic induction element and rotatably arranged. The optical detection component controls the on-off of the optical path by switching the transparent area and the blocking area of the light guide column to identify the rotation angle of the pressure plate, and the main control module is used to collect the information of the rotation angle of the pressure plate.

[0045] The rail-type sensor array includes a magnetic induction switch, which detects the induction stroke of the pressure plate through the magnetic induction of the magnetic induction element, and the magnetic induction boundary of the magnetic induction switch is dynamically synchronized with the optical path switching boundary of the light guide column.

[0046] A wireless collector, which is used to collect the on / off state information of the pressure plate detected by the guide rail type sensor array;

[0047] A pressure plate control device communicates with the main control module. The main control module sends the collected rotation angle information of the pressure plate to the pressure plate control device. It also communicates wirelessly with the wireless collector. The wireless collector sends the collected on / off state information of the pressure plate to the pressure plate control device. The pressure plate control device performs synchronous boundary logic processing on the double confirmation signal and outputs the double confirmation state;

[0048] A pressure plate management system conducts system data interaction with the pressure plate control device.

[0049] Based on the above settings, through a non-contact sensing mechanism with dual confirmation of state integrating optical detection and magnetic induction detection, synchronous boundary dynamic verification realizes dual discrimination of the pressure plate state and precise determination of the critical position. The magnetic induction boundary of the magnetic induction switch is dynamically synchronized with the optical path switching boundary of the light guide column. In this way, synchronous cooperation is carried out to conduct dual confirmation determination on the on state or off state of the pressure plate. That is, the pressure plate control device compares the on / off state information of the pressure plate detected by the optical detection component and the guide rail sensor array, performs dual-channel synchronous detection and dual-state verification. In this way, when detecting from different sources, it effectively avoids the problem of abnormal pressure plate state judgment and system misjudgment caused by asynchronous induction signals and boundary signals, greatly improves the accuracy of pressure plate state judgment, and greatly reduces system false alarms;

[0050] Moreover, both the optical detection and magnetic induction detection processes are carried out in a non-contact manner, and wireless network communication can also be realized. Using wireless communication, real-time collection and transmission of remote state information can be achieved. There is no need for manual on-site operation, and remote precise control and real-time dual confirmation monitoring of the pressure plate state can be realized. It can avoid the problems of missed detection by manual and the risk of poor contact existing in traditional electrical contact type detection. The dual confirmation detection induction signals are synchronized and coordinated, and the detection means are effective and reliable, greatly improving the accuracy of pressure plate state detection.

[0051] It should be noted that the guide rail type sensor array can be installed above or below the pressure plate. The guide rail type sensor array is fixed on the protection measurement and control screen by double-sided tape or back adhesive. The installation method is convenient, easy to disassemble and adaptively adjust, and can ensure the installation stability of the guide rail type sensor array, which helps to improve the accuracy of magnetic induction detection of the pressure plate.

[0052] The working process of the intelligent pressure plate remote monitoring system based on dual confirmation detection synchronization is roughly as follows:

[0053] When remotely controlling the insertion and withdrawal of the pressure plate through the pressure plate management system, the optical detection component controls the on-off of the optical path by switching between the transparent area and the blocking area of the light guide column to identify the rotation angle of the pressure plate. The main control module sends the information of the rotation angle of the pressure plate collected to the pressure plate control device. The magnetic induction component magnetically senses the induction stroke of the pressure plate, and sends the information of the insertion and withdrawal state of the pressure plate collected through the wireless collector to the pressure plate control device. The magnetic induction boundary of the magnetic induction switch is dynamically synchronized with the optical path switching boundary of the light guide column. The current state information of the pressure plate detected by the optical detection component is consistent with the current state information of the pressure plate detected by the guide rail type sensor array. The pressure plate control device processes the double confirmation signals of the optical detection and magnetic induction detection of the pressure plate for synchronous boundary logic processing, and summarizes the comparison results to the pressure plate management system for data interaction. The pressure plate management system displays the current state information of the pressure plate in real time, and realizes the advanced application of the pressure plate and the intelligent remote monitoring and management of the board through the pressure plate management system software.

[0054] As Figure 3 and Figure 4 shown, the induction stroke S of the magnetic induction component and the rotation angle θ of the light guide column satisfy a linear mapping relationship: S = X·tanθ; where X is the vertical height from the magnetic induction component to the magnetic induction switch (as shown in Figures b and c of Figure 4 ), tanθ is the tangent value, corresponding to the ratio of the induction stroke S to the vertical height X from the magnetic induction component to the magnetic induction switch. When the pressure plate rotates to the critical position, the magnetic field induction boundary of the magnetic induction switch and the optical path switching boundary of the light guide column trigger a signal jump synchronously.

[0055] As Figure 4 shown in Figure b of

[0056] When the pressure plate switches between insertion and withdrawal, when the magnetic induction component sweeps through the induction stroke S1 and triggers the induction boundary of the magnetic induction switch and the optical path switching boundary when the light guide column rotates by an angle θ1, the following linear mapping relationship is satisfied at this time: S1 = X·tanθ1; Figure 4 As shown in Figure c of

[0057] The optical detection process and the magnetic induction detection process perform status detection on the pressure plate in a non-contact manner. The magnetic induction component includes a permanent magnet, and the magnetic induction switch includes a Hall element. In the input state, the permanent magnet approaches the Hall element, and under the action of the magnetic field, the Hall element is in the on state. In the exit state, the permanent magnet moves away from the Hall element, and the Hall element is in the off state. The optical detection component includes a light emitter and a light receiver. The pressure plate body includes a light guide column rotatably arranged. The light guide column is provided with a transparent area and an occlusion area. The on / off of the optical path is controlled by switching between the transparent area and the occlusion area to identify the rotation angle of the pressure plate, that is, when the light guide column rotates, the on / off of the optical path between the light emitter and the light receiver is controlled, thereby realizing the identification of the rotation angle of the pressure plate.

[0058] The permanent magnet is installed on the handle of the pressure plate body through a structural accessory and rotates with the pressure plate body. Through the magnetic induction cooperation between the permanent magnet and the Hall element, the state of the pressure plate is detected in real time during the magnetic induction detection process, ensuring that the pressure plate can be accurately detected in the input and withdrawal positions. Among them, the induction distance between the permanent magnet and the Hall element is D, and the range of D is 0 < D ≤ 2 mm, that is, when the magnetic field induction between the permanent magnet and the Hall element is the largest, the permanent magnet can trigger the induction signal of the Hall element within a distance of ≤ 2 mm, ensuring that the magnetic induction detection of the pressure plate can be effectively and stably carried out. The value of the distance D can be set according to actual needs. For example, the distance D can be set to 0.25 mm, 0.5 mm, 0.75 mm, 1 mm, 1.25 mm, 1.5 mm, 1.75 mm, 2 mm, etc.

[0059] When the pressure plate body rotates, the light guide column is synchronized with the input angle / exit angle of the pressure plate. The transparent area and the occlusion area of the light guide column control the on / off of the optical path between the light emitter and the light receiver, that is, when the light guide column rotates, the optical path between the light emitter and the light receiver is disconnected or kept connected through the transparent area and the occlusion area to realize the optical detection of the exit state and the input state of the pressure plate. The rotation of the light guide column occurs synchronously with the rotation of the permanent magnet along the handle of the pressure plate body, and the magnetic field induction boundary of the magnetic induction switch and the optical path switching boundary of the light guide column trigger signal jumps synchronously. When the pressure plate rotates to the input state, the rotation angle information of the light guide column detected by the light emitter and the light receiver is synchronized with the magnetic induction signal of the permanent magnet detected by the Hall element. The magnetic field induction boundary of the magnetic induction switch and the optical path switching boundary of the light guide column trigger signal jumps synchronously. Through non-contact detection and under the judgment of double confirmation, the synchronous detection induction of different sources is realized, so as to accurately judge the state of the pressure plate.

[0060] Such as Figure 3 and Figure 4As shown, when transitioning from the input state to the exit state, when the permanent magnet sweeps through the magnetic induction stroke S1, it triggers the induction boundary of the Hall element to keep the Hall element in the off state. When the light guide column rotates by an angle θ1, it triggers the induction boundary of the light emitter and the light receiver, and the light receiver disconnects from sensing the optical signal of the light emitter. Among them, the magnetic induction stroke S1 corresponds to the rotation angle θ1 of the light guide column. The permanent magnet sweeps through the magnetic induction stroke S2, and the light guide column rotates by an angle θ2, causing the pressure plate to rotate to the exit state position. The magnetic induction stroke S2 corresponds to the rotation angle θ2. Optical detection and magnetic induction detection maintain synchronous determination at the critical point of state switching.

[0061] With such a setting, the correspondence between the rotation angle and the induction stroke ensures the synchronization of double confirmation of the magnetic induction detection and optical detection states, ensures the synchronous cooperation of the optical detection and magnetic induction detection of the pressure plate, realizes the double confirmation determination of the state of the pressure plate, and greatly improves the determination accuracy of the state detection of the pressure plate. When the permanent magnet sweeps through the magnetic induction stroke S1 and the light column rotates by an angle θ1, the pressure plate has not actually fully rotated to the retracted state position. Therefore, the pressure plate body needs to rotate a certain distance until the permanent magnet sweeps through the magnetic induction stroke S2 and the light guide column rotates by an angle θ2, and the pressure plate is completely in the retracted state position. At this time, the Hall element can no longer sense the permanent magnet signal, and the light emitter and the light receiver can no longer detect the optical signal either.

[0062] Figure 3 In the attached figure a, the pressure plate is in the input state position, and the permanent magnet keeps triggering the Hall element, causing the Hall element to remain in the on state; Figure 3 In the attached figure b, it is a schematic diagram of the permanent magnet sweeping through the magnetic induction stroke S1 when the pressure plate is transitioning between the input state and the exit state. The rotation of the pressure plate drives the rotation of the permanent magnet, and the permanent magnet sweeps through the magnetic induction stroke S1; Figure 3 In the attached figure c, the pressure plate is in the exit state position. When the pressure plate completely rotates to the exit state position, the total stroke swept by the permanent magnet is the magnetic induction stroke S2. If the pressure plate rotates from the exit state position to the input state, when the permanent magnet sweeps through a stroke equal to the magnetic induction stroke S2 minus the magnetic induction stroke S1, it will trigger the induction boundary of the Hall element.

[0063] Figure 4 In the attached figure a, the pressure plate is in the input state position, and the infrared optical signal emitted by the light emitter passes through the light guide column, and the light receiver receives the infrared optical signal emitted by the light emitter; Figure 4 In the attached figure b, it is a schematic diagram of the rotation angle θ1 of the light guide column corresponding to the magnetic induction stroke S1 when the pressure plate is transitioning between the input state and the exit state. The permanent magnet sweeping through the magnetic induction stroke S1 and the rotation angle θ1 of the light guide column are completed synchronously; Figure 4 In the attached figure c, it is a schematic diagram of the rotation angle θ2 of the light guide column corresponding to the magnetic induction stroke S2 when the pressure plate rotates to the exit state position. The permanent magnet sweeping through the magnetic induction stroke S2 and the rotation angle θ2 of the light guide column are completed synchronously.

[0064] It is understandable that when the pressure plate rotates from the withdrawn state to the engaged state, the magnetic steel needs to rotate out of the withdrawn state position. The magnetic steel needs to sweep through a stroke equal to the magnetic induction stroke S2 minus the magnetic induction stroke S1, and then the magnetic steel triggers the induction boundary of the Hall element. The Hall element is about to sense the magnetic steel signal. Then the magnetic steel sweeps through the magnetic induction stroke S1, and the pressure plate rotates to the engaged state position. Similarly, the light guide column needs to rotate by an angle equal to the rotation angle θ2 minus the magnetic rotation angle θ1. Then the light emitter emits light, and the induction boundary of the light receiver is triggered. The light emitter emits light, and the light receiver is about to sense the optical signal. Then the light guide column rotates by the magnetic rotation angle θ1, and the pressure plate rotates to the engaged state position.

[0065] The optical detection component includes a light emitter and a light receiver. The light emitter and the light receiver are respectively arranged on both sides of the light guide column, and the optical path between the light emitter and the light receiver passes through the axis of the light guide column. The light emitter can be set as an infrared light emitter, and the light receiver can be set as an infrared light receiver. The light emitted by the infrared light emitter passes through the axis of the light guide column, so as to ensure that when the light guide column rotates, it can trigger signals synchronously with the rotation of the magnetic steel at the boundary. The synchronization of the boundary trigger signals helps to improve the accuracy.

[0066] In order to facilitate the control of the on-off of the optical path between the light emitter and the light receiver, the structure of the light guide column is divided into a transparent area and an opaque area. In this way, the on-off of the optical signal can be realized through the structure of the light guide column itself without additional structures, which is convenient for saving materials and structural design. The light guide column divides one side along the rotation axis into a transparent area and the other side into an occlusion area. The occlusion area is set as a slot-type light-shielding sheet, and the light emitter and the light receiver are respectively arranged on both sides of the light guide column.

[0067] With such a setting, when the light guide column rotates, the on-off of the optical path between the light emitter and the light receiver is controlled through the transparent area and the occlusion area. The optical axis of the optical path between the light emitter and the light receiver is set perpendicular to the axis of the light guide column. In this way, when the pressure plate body rotates to the engaged or withdrawn position, the detection accuracy of the rotation angle of the light guide column by the light emitter and the light receiver can be improved, and then the engaged state and the withdrawn state of the pressure plate can be accurately detected.

[0068] The light guide column can be made of a transparent material. A slot is arranged on the other side opposite to the transparent area, and a light-shielding sheet is placed in the slot to form an occlusion area. The light-shielding sheet can block the light emitted by the light emitter, so that the light receiver cannot receive the optical signal. The occlusion area can also be formed by a light-shielding patch pasted on the other side opposite to the transparent area. The induction boundary of the light-shielding patch corresponds to the induction boundary of the magnetic steel to achieve synchronous collaborative detection.

[0069] Among them, the light emitter and the light receiver can be an infrared light emitter and an infrared light receiver, or a laser receiver; the optical detection component can also use other optoelectronic detection devices.

[0070] Specifically, when the light guide column rotates by an angle θ1, the boundary of the occlusion area coincides with the optical path between the light emitter and the light receiver, and the angular range corresponding to the arc length of the occlusion area is: θ2 - θ1 < α < 180° - θ1. The arc length of the occlusion area should be greater than the arc length corresponding to when the light guide column rotates by an angle θ2 minus the arc length corresponding to when the light guide column rotates by an angle θ1, ensuring that the light guide column synchronously triggers the optical signal boundary when the magnetic steel triggers the magnetic induction boundary. When the boundary of the occlusion area triggers the optical signal between the infrared light emitter and the infrared light receiver, the angle α corresponding to the arc length of the occlusion area < 180° - θ1. When the occlusion area blocks the optical path between the infrared light emitter and the infrared light receiver, the arc length of the occlusion area can be as long as possible, thus ensuring the reliability of the occlusion of the occlusion area.

[0071] Refer to the following table:

[0072] Press Plate Operation Permission Magnetic Induction State Optical Detection State Output State 1 1 1 Input 1 0 0 Exit 0 1 / 0 0 / 1 Abnormal 0 1 1 Input and Record 0 0 0 Exit and Record

[0073] The platen control device executes the following logic:

[0074] When the platen operation is authorized and the magnetic induction detection is consistent with the optical detection, the input / output state is output;

[0075] When the platen operation is not authorized and the magnetic induction detection is inconsistent with the optical detection, an abnormal state is output and an alarm is given;

[0076] When the platen operation is not authorized and the magnetic induction detection is consistent with the optical detection, the input / output state is output and the operation is recorded.

[0077] As shown in the above table, when the platen operation is authorized and the magnetic induction detection is consistent with the optical detection, the platen control device outputs the input or output state, and the state comparison is carried out through the platen control device to perform a double confirmation determination on the state of the platen, greatly improving the detection accuracy of the state of the platen.

[0078] The communication between the wireless collector and the platen control device adopts a point-to-point short-range wireless communication method and supports encrypted data transmission. Among them, the wireless collector is fixed on the side of the protection measurement and control panel by pasting, which is convenient for centralized collection on the side of the platen of the protection measurement and control panel. The platen control device has a standard chassis structure and is deployed on the protection measurement and control panel to realize the management of all station platens. The use of wireless communication reduces the construction of cable connections.

[0079] The guide rail type sensor further includes a guide rail body and multiple sensors. The multiple sensors are arranged on the guide rail body and can be slidably adjusted along the length direction of the guide rail body. The multiple sensors are adaptively arranged according to the layout of the pressure plates. The sensor includes a magnetic induction switch and a sensing module. The magnetic induction switch and the magnetic induction element adopt non-contact induction, and the communication between the sensing module and the wireless collector adopts a wireless method.

[0080] Adopting the non-electric quantity induction principle, it is not affected by the number of pressure plates and the distance between pressure plates, and realizes the on-line real-time monitoring of pressure plates. The non-contact magnetic induction principle is adopted to collect the state of the pressure plates, and there is no electrical connection with the secondary circuit of the pressure plates. The guide rail type sensor adopts a guide rail design, and the sensor can slide left and right on the guide rail body to adapt to different pressure plate distances and quantities, with high applicability.

[0081] The pressure plate management system includes a real-time status monitoring module, an abnormal alarm module, and an operation record module. The real-time status monitoring module is used to display the current status of the pressure plates. The abnormal alarm module is used to trigger an alarm when an abnormal status is detected. The operation record module is used to record the operation permissions and operation history of the pressure plates. The pressure plate management system realizes advanced applications such as status monitoring, status comparison, and intelligent analysis of pressure plates at the substation end or dispatch and operation and maintenance teams.

[0082] The intelligent pressure plate remote monitoring system based on double-confirmation detection synchronization is configured with an abnormal handling mechanism. The abnormal handling mechanism includes:

[0083] When the double-confirmation determination status of optical detection and magnetic induction detection is inconsistent and lasts for more than one second, the status indicator light of the intelligent pressure plate component prompts an alarm;

[0084] The notification of the pressure plate management system is pushed to the operation and maintenance team / dispatch end at different levels;

[0085] Start the self-check program and execute it in the order of hardware status detection, communication detection, and system reset.

[0086] By setting the abnormal handling mechanism, it is ensured that measures can be taken quickly when inconsistencies are found, potential accidents are prevented, and the occurrence of safety accidents is reduced.

[0087] The main control module includes a central processor and a communication module. The central processor communicates with the pressure plate control device through the communication module. For example, the central processor controls the communication module to communicate with the pressure plate control device through the RS485 bus. The intelligent pressure plate component further includes a remote control module and a status indicator light. The remote control module is electrically connected to the central processor and is used to control the conversion of the pressure plate body between the input state and the output state. The status indicator light is electrically connected to the central processor and is used for the abnormal position change alarm indication of the pressure plate.

[0088] Based on the above settings, the functions of remotely and real-time monitoring the pressure plate and remotely controlling the pressure plate can be realized, and the real-time collection and transmission of the remote status information can be achieved under the wireless communication network.

[0089] Among them, the remote control module may include a circuit board and a motor. The circuit board and the motor are electrically connected. The motor is used to control the rotation of the pressure plate body, and the circuit board is used to receive the input instruction or the withdrawal instruction of the pressure plate management system. The circuit board controls the motor to work based on the input instruction or the withdrawal instruction, so as to drive the pressure plate body to perform the input or withdrawal action under the drive of the motor. By setting the remote control module, the remote control of the pressure plate is realized, so that manual inspection is not required and mis-inspection and missed inspection can be avoided, thereby improving the systematic management of the pressure plate.

[0090] The above are only the optional embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural transformation made by using the content of the specification and drawings of the present invention under the inventive concept of the present invention, or direct / indirect application in other related technical fields are all included in the patent protection scope of the present invention.

Claims

1. An intelligent pressure plate remote monitoring system based on double-confirmation detection synchronization, characterized in that, Including: A non-contact sensing mechanism that integrates optical detection and magnetic induction detection for dual confirmation of the state. It conducts dual discrimination of the platen state and determination of the critical position through synchronous boundary dynamic verification, including an intelligent platen assembly and a rail-mounted sensor array; wherein, The intelligent platen assembly includes a main control module, an optical detection component, and a platen body with a magnetic induction element that is rotatably arranged. The optical detection component controls the on / off of the optical path by switching the transparent area and the occlusion area of the light guide column to identify the rotation angle of the platen, and the main control module is used to collect information on the rotation angle of the platen; The rail-mounted sensor array includes magnetic induction switches, which detect the induction stroke of the platen through the magnetic induction of the magnetic induction element. The magnetic induction boundary of the magnetic induction switch is dynamically synchronized with the optical path switching boundary of the light guide column; A wireless collector, which is used to collect the on / off state information of the platen detected by the rail-mounted sensor array; A platen control device, which communicates with the main control module. The main control module sends the collected platen rotation angle information to the platen control device, and also communicates wirelessly with the wireless collector. The wireless collector sends the collected platen on / off state information to the platen control device. The platen control device performs synchronous boundary logic processing on the dual confirmation signal and outputs the dual confirmation state; A platen management system, which conducts system data interaction with the platen control device.

2. The intelligent pressure plate remote monitoring system based on double-confirmation detection synchronization according to claim 1, characterized in that, The induction stroke S of the magnetic induction element and the rotation angle θ of the light guide column satisfy a linear mapping relationship: S = X·tanθ; Wherein, X is the vertical height from the magnetic induction element to the magnetic induction switch. When the platen rotates to the critical position, the magnetic field induction boundary of the magnetic induction switch and the optical path switching boundary of the light guide column trigger signal jumps synchronously.

3. The intelligent pressure plate remote monitoring system based on double-confirmation detection synchronization according to claim 2, characterized in that, When the magnetic induction element sweeps through the induction stroke S1, the induction boundary of the magnetic induction switch and the optical path switching boundary when the light guide column rotates by the angle θ1 are synchronized. At this time, the linear mapping relationship is satisfied: S1 = X·tanθ1; When the magnetic induction element sweeps through the induction stroke S2 and the light guide column rotates by the angle θ2, the magnetic induction switch cannot detect the magnetic signal, and the optical detection component cannot detect the optical signal. At this time, the linear mapping relationship is satisfied: S2 = X·tanθ2.

4. The intelligent pressure plate remote monitoring system based on double-confirmation detection synchronization according to claim 1, characterized in that, The platen control device executes the following logic: When the platen operation is authorized and the magnetic induction detection is consistent with the optical detection, output the on / off state; When the platen operation is not authorized and the magnetic induction detection is inconsistent with the optical detection, output an abnormal state and give an alarm; When the platen operation is not authorized and the magnetic induction detection is consistent with the optical detection, output the on / off state and record the operation.

5. The intelligent pressure plate remote monitoring system based on double-confirmation detection synchronization according to claim 3, characterized in that, The optical detection component includes a light emitter and a light receiver. The light emitter and the light receiver are respectively arranged on both sides of the light guide column, and the optical path between the light emitter and the light receiver passes through the axis of the light guide column.

6. The intelligent pressure plate remote monitoring system based on double-confirmation detection synchronization according to claim 5, wherein When the light guide column rotates by the angle θ1, the boundary of the occlusion area coincides with the optical path between the light emitter and the light receiver, and the angular range corresponding to the arc length of the occlusion area is: θ2 - θ1 < α < 180° - θ1.

7. The intelligent pressure plate remote monitoring system based on double-confirmation detection synchronization as described in claim 1, wherein, The communication between the wireless collector and the platen control device adopts a point-to-point short-range wireless communication method and supports encrypted data transmission.

8. The intelligent pressure plate remote monitoring system based on double-confirmation detection synchronization according to claim 1, wherein, The rail type sensor further includes a rail body and a plurality of sensors. The plurality of sensors are arranged on the rail body and can be slidably adjusted along the length direction of the rail body. The plurality of sensors are arranged adaptively according to the layout of the platen. The sensor includes a magnetic induction switch and a sensing module. The magnetic induction switch adopts non-contact induction with the magnetic induction element, and the communication between the sensing module and the wireless collector adopts a wireless method.

9. The intelligent pressure plate remote monitoring system based on double-confirmation detection synchronization as described in claim 1, characterized in that, The platen management system includes: A real-time status monitoring module for displaying the current status of the platen. An abnormal alarm module for triggering an alarm when an abnormal status is detected. An operation record module for recording the operation permissions and operation history of the platen.

10. The intelligent pressure plate remote monitoring system based on double-confirmation detection synchronization according to claim 1, wherein The main control module includes a central processor and a communication module. The central processor communicates with the platen control device through the communication module. The intelligent platen assembly further includes a remote control module and a status indicator light. The remote control module is electrically connected to the central processor and is used to control the conversion of the platen body between the input state and the output state. The status indicator light is electrically connected to the central processor and is used for abnormal displacement alarm indication of the platen.

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