Hard strap monitoring device and hard strap monitoring method

Abstract

The invention provides hard strap monitoring equipment and a hard strap monitoring method, the hard strap monitoring equipment comprises a plurality of terminal strap sensors and a concentrator, each terminal strap sensor is in communication connection with the concentrator, and the terminal strap sensors sense electric field signals generated after a circuit input end and a circuit output end form a path. Summarizing the electric field signals into a voltage value data set, obtaining the current state of the hard pressing plate according to the voltage value data set, and sending the voltage value data set or the current state of the hard pressing plate to a concentrator; and the concentrator receives and gathers the voltage value data set sent by each terminal pressing plate sensor or the current state of the hard pressing plate so as to form a total voltage value data set or a current state set of the hard pressing plate. According to the invention, the wiring terminal strip is combined with the electric field sensing assembly, so that the voltage signal after the circuit input end and the circuit output end form a path can be sensed, the complexity of the circuit in the power grid cabinet can be simplified, and the monitoring cost of the hard pressing plate circuit is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of hard pressing plate monitoring, in particular to a hard pressing plate monitoring device and a hard pressing plate monitoring method. Background Art

[0002] The power grid cabinet, also known as the high-voltage distribution device, is one of the important components of the power system, with protection, control, measurement and other functions. It can detect and isolate faults in the power system, ensure the normal operation of the power system, and protect the safety of personnel and equipment. The power grid cabinet usually includes circuit breakers, disconnectors, load switches, transformers, energy meters and other components, which are used to protect, control and measure the power transmission and distribution of the power system.

[0003] The terminal block is one of the electrical connectors installed in the power grid cabinet, which is used to connect the input and output ends of the hard plate circuit to achieve signal or current transmission. When monitoring the hard plate circuit in the power grid cabinet, it is usually necessary to add an additional hard plate sensor to the hard plate circuit to obtain the voltage of the hard plate circuit or the current status of the hard plate.

[0004] However, adding a hard pressure plate sensor to the hard pressure plate line will not only increase the complexity of the line in the power grid cabinet, but also increase the monitoring cost of the hard pressure plate line.

[0005] Therefore, how to simplify the complexity of the lines in the power grid cabinet and reduce the monitoring cost of the hard pressure plate lines is a technical problem that needs to be solved urgently. Summary of the invention

[0006] In response to the shortcomings existing in the above-mentioned problems, the present invention provides a hard pressure plate monitoring device and a hard pressure plate monitoring method which combine a terminal block with an electric field sensing component, which can not only realize current transmission and sense the voltage signal after a path is formed between the input and output ends in the hard pressure plate circuit, but also simplify the complexity of the circuit in the power grid cabinet and reduce the monitoring cost of the hard pressure plate circuit.

[0007] To achieve the above-mentioned object, in a first aspect, the present invention provides a hard platen monitoring device, comprising at least one terminal platen sensor and a concentrator, each of the terminal platen sensors being communicatively connected to the concentrator, wherein:

[0008] The terminal pressure plate sensor senses the electric field signal generated after the line input end and the line output end form a path, summarizes each of the electric field signals into a voltage value data set, obtains the current state of the hard pressure plate according to the voltage value data set, and sends the voltage value data set or the current state of the hard pressure plate to the concentrator;

[0009] The concentrator receives and aggregates the voltage value data sets sent by each of the terminal pressure plate sensors, or the current states of the hard pressure plates, to form a total voltage value data set, or a current state set of the hard pressure plates.

[0010] In one embodiment, the terminal pressure plate sensor includes a protective housing, a line connection structure, an electric field sensing component, a power module a, and a communication module a, where:

[0011] The protective housing wraps around the outside of the line connection structure, the electric field sensing component, the power module a, and the communication module a;

[0012] The line connection structure is disposed on one side of the electric field sensing component, and is formed with a first accommodation position for accommodating the line input end and a second accommodation position for accommodating the line output end. When the end of the line input end is placed in the first accommodation position and the end of the line output end is placed in the second accommodation position at the same time, the line input end and the line output end form a path;

[0013] Within a preset time period, the electric field sensing component senses the electric field signal generated on the line connection structure after the path is formed, aggregates the electric field signal into a voltage value data set, and obtains the current state of the hard pressure plate according to the voltage value data set;

[0014] The power module a is electrically connected to the electric field sensing component and the communication module a respectively;

[0015] The communication module a is communicatively connected to the concentrator, and sends the voltage value data set, or the current state of the hard pressure plate, to the concentrator.

[0016] In one embodiment, the protective housing includes an outer shell and a shielding layer, where:

[0017] The outer shell wraps around the outside of the shielding layer, the inner wall surface of the outer shell abuts against the outer wall surface of the shielding layer, and a fixing component for fixing the terminal pressure plate sensor is provided on the bottom end surface of the outer shell;

[0018] The shielding layer wraps around the outside of the line connection structure and the electric field sensing component, and is used for shielding two adjacent terminal pressure plate sensors.

[0019] In one embodiment, the line connection structure includes a path component, a first channel, and a second channel, where:

[0020] The first channel and the second channel respectively penetrate through the inside of the outer shell and the shielding layer;

[0021] The first receiving position and the second receiving position are formed on the passage component. The first channel is in communication with the first receiving position, and the second channel is in communication with the second receiving position. The end of the line input end penetrates through the first channel and is placed in the first receiving position, abutting against the inner wall surface of the first receiving position. The end of the line output end penetrates through the second channel and is placed in the second receiving position, abutting against the inner wall surface of the second receiving position, so that a passage is formed between the line input end and the line output end.

[0022] In one embodiment, the passage component includes a passage forming member and an insulating layer, wherein:

[0023] The insulating layer covers the wall surface of the passage forming member adjacent to the shielding layer, and a first jack and a second jack are formed on the insulating layer;

[0024] A first slot and a second slot are formed on the passage forming member. The first jack and the first slot are in communication to form the first receiving position, and the second jack and the second slot are in communication to form the second receiving position;

[0025] When one end of the line input end is placed in the first receiving position, it abuts against the passage forming member. When one end of the line output end is placed in the second receiving position, it abuts against the passage forming member.

[0026] In one embodiment, the electric field sensing component includes a housing a, an electric field sensitive structure and a single-chip microcomputer a placed inside the housing a. The single-chip microcomputer a is respectively connected to the electric field sensitive structure, the power supply module a and the communication module a, wherein:

[0027] A sensing through hole is formed on the housing a;

[0028] The electric field sensitive structure includes a sensing end facing the passage forming member. The sensing end corresponds to the passage forming member through the sensing through hole to sense the electric field signal generated on the passage forming member after the passage is formed;

[0029] The single-chip microcomputer a aggregates the electric field signals into a voltage value data set and obtains the current state of the hard pressure plate according to the voltage value data set.

[0030] In one embodiment, a cavity for isolating water vapor is further formed between the housing a and the shielding layer.

[0031] In one embodiment, the terminal pressure plate sensor further includes a first fastening position and a second fastening position, wherein:

[0032] The first fastening position includes a first fastening hole penetrating through the top of the protective case and a first fastening groove formed on the top end face of the line connection structure. After the end of an external fastener is placed in the first fastening position, the line input end is fastened in the first accommodation position;

[0033] The second fastening position includes a second fastening hole penetrating through the top of the protective case and a second fastening groove formed on the top end face of the line connection structure. After the end of an external fastener is placed in the second fastening position, the line output end is fastened on the second accommodation position.

[0034] In one embodiment, the concentrator includes a single-chip microcomputer b, a power supply module b, and a communication module b. The single-chip microcomputer b is respectively connected to the power supply module b and the communication module b, where:

[0035] The communication module b receives each set of voltage value data sent by the terminal pressure plate sensor or the current state of each hard pressure plate;

[0036] The single-chip microcomputer b performs secondary summarization on each set of voltage value data or the current state of each hard pressure plate to form a total set of voltage value data or a set of the current states of the hard pressure plates.

[0037] In one embodiment, the concentrator is also respectively connected to a power supply part and a host computer, where:

[0038] The power supply part supplies power to the concentrator;

[0039] The host computer receives the total set of voltage value data or the set of the current states of the hard pressure plates sent by the concentrator.

[0040] In a second aspect, the present invention also provides a method for monitoring hard pressure plates, which is applied to the above-mentioned monitoring device to monitor the current state of hard pressure plates within a preset time period, including the following steps:

[0041] Each terminal pressure plate sensor senses the electric field signal generated on the path component after the path between the line input end and the line output end is formed, and converts the electric field signal into a voltage signal;

[0042] Summarize each voltage signal into a set of voltage value data according to the time sequence;

[0043] Calculate the difference between the maximum value and the minimum value in the set of voltage value data;

[0044] Determine the current state of the hard pressure plate according to the difference;

[0045] Each of the terminal pressure plate sensors sends the current state of the hard pressure plate to the concentrator;

[0046] After summarizing the current states of the hard pressure plates, the concentrator sends them to the host computer.

[0047] Thirdly, the present invention also provides a method for monitoring hard pressure plates, which is applied to the above-mentioned monitoring device to monitor the voltage value of the hard pressure plate circuit within a preset time period, and includes the following steps:

[0048] Each terminal pressure plate sensor senses the electric field signal generated on the path component after the path is formed between the input end and the output end of the circuit, and converts the electric field signal into a voltage signal;

[0049] Summarize each voltage signal into a voltage value data set according to the time sequence;

[0050] Each of the terminal pressure plate sensors sends the voltage value data set to the concentrator;

[0051] After summarizing each voltage value data set, the concentrator sends it to the host computer.

[0052] Compared with the prior art, the present invention has one of the following advantages:

[0053] Each terminal pressure plate sensor is communicatively connected to the concentrator, which can simplify the complexity of the lines in the power grid cabinet and reduce the monitoring cost of the hard pressure plate circuit;

[0054] The terminal pressure plate sensor combines the terminal block with the electric field sensing component, which can not only realize current transmission, but also quickly and accurately sense the voltage signal after the path is formed between the input end and the output end of the hard pressure plate circuit. Since the terminal pressure plate sensor has the characteristics of small volume, high precision, high sensitivity, long service life, etc., it can replace the terminal block in the power grid cabinet. At the same time, since there is no need to add a hard pressure plate sensor in the hard pressure plate circuit, it can not only simplify the complexity of the lines in the power grid cabinet, but also reduce the monitoring cost of the hard pressure plate circuit;

[0055] Through the cooperating fasteners, the first fastening position and the second fastening position, the input end and the output end can be respectively fastened in the first accommodating position and the second accommodating position to ensure the connection performance of the circuit;

[0056] Combining the terminal pressure plate sensor with the concentrator can also monitor the voltage value of the hard pressure plate circuit or the current state of the hard pressure plate according to the voltage signal. Description of the Drawings

[0057] Figure 1 is the schematic diagram of the hard pressure plate monitoring device in the present invention;

[0058] Figure 2 is Figure 1 the schematic diagram of;

[0059] Figure 3 A perspective view of the first example of the terminal pressure plate sensor in the hard pressure plate monitoring device of the present invention;

[0060] Figure 4 is Figure 3 a cross-sectional view of;

[0061] Figure 5 A perspective view of the second example of the terminal pressure plate sensor in the hard pressure plate monitoring device of the present invention;

[0062] Figure 6 is Figure 5 a cross-sectional view of;

[0063] Figure 7 A perspective view of the third example of the terminal pressure plate sensor in the hard pressure plate monitoring device of the present invention;

[0064] Figure 8 is Figure 7 an assembly drawing of the terminal pressure plate sensor in;

[0065] Figure 9 A partial front view of the panel of the switchgear cabinet;

[0066] Figure 10 A partial back view of the panel of the switchgear cabinet;

[0067] Figure 11 A flowchart of the method for monitoring the state of the hard pressure plate in the present invention;

[0068] Figure 12 is Figure 11 a voltage signal waveform diagram in;

[0069] Figure 13 A flowchart of the method for monitoring the voltage value in the hard pressure plate circuit in the present invention.

[0070] The main reference numeral contents are as follows:

[0071] 1 - Terminal pressure plate sensor; 100 - Housing; 101 - Shielding layer; 102 - Component for forming a passage; 1021 - First accommodation position; 1022 - Second accommodation position; 103 - Insulating layer; 104 - First channel; 105 - Second channel; 106 - First fastening hole; 107 - First fastening groove; 108 - Second fastening hole; 109 - Second fastening groove; 110 - Cavity; 111 - Housing a; 1110 - Sensing through - hole; 112 - Electric - field sensitive structure; 113 - Single - chip microcomputer a; 114 - Power supply module a; 115 - Power line; 116 - Electric - field sensitive chip; 117 - Communication module a; 2 - Line input terminal; 3 - Line output terminal; 4 - Fixing component; 400 - First hook - shaped part; 401 - Second hook - shaped part; 402 - Accommodation area; 5 - Fixed strip board; 6 - Concentrator; 600 - Single - chip microcomputer b; 601 - Power supply module b; 602 - Communication module b; 7 - Power supply part; 8 - Host computer; 9 - Panel of the switchgear cabinet; 10 - Input terminal; 11 - Output terminal. Detailed implementation manners

[0072] To make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with specific embodiments and the corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0073] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "upper", "lower", "top surface", "bottom surface", "inside", etc. are based on the orientation or positional relationships shown in the drawings. It is 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 thus should not be construed as a limitation of the present invention. It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component present. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0074] Embodiment 1

[0075] As Figures 1 to 4 shown, this embodiment provides a hard - pressure - plate monitoring device, including a plurality of terminal pressure - plate sensors 1, a concentrator 6 communicatively connected to each terminal pressure - plate sensor 1, a power - supply part 7 electrically connected to the concentrator 6, and a host computer 8 communicatively connected to the concentrator 6.

[0076] Within a preset time period, each terminal pressure plate sensor 1 senses the electric field signal generated after the line input end 2 and the line output end 3 in the hard pressure plate line form a path, aggregates each electric field signal into a voltage value data set, and obtains the current state of the hard pressure plate according to the voltage value data set, and sends the voltage value data set or the current state of the hard pressure plate to the concentrator 6.

[0077] The concentrator 6 receives and aggregates the voltage value data sets or the current states of the hard pressure plates sent by each terminal pressure plate sensor 1 to form a total voltage value data set or a set of the current states of the hard pressure plates.

[0078] The power supply part 7 is electrically connected to the concentrator 6 to supply power to the concentrator 6.

[0079] The upper computer 8 receives the voltage value data sets or the current states of the hard pressure plates sent by the concentrator 6.

[0080] In this embodiment, specifically, the terminal pressure plate sensor 1 includes a sensor including a protective shell, a line connection structure, an electric field sensing component, a power module a114 and a communication module a117.

[0081] The protective shell wraps around the outside of the line connection structure, the electric field sensing component, the power module a114 and the communication module a117.

[0082] The line connection structure is arranged on one side of the electric field sensing component, and forms a first accommodation position for accommodating the line input end and a second accommodation position for accommodating the line output end. When the end of the line input end is placed in the first accommodation position and the end of the line output end is placed in the second accommodation position at the same time, the line input end and the line output end form a path.

[0083] Within a preset time period, the electric field sensing component senses the electric field signal generated on the line connection structure after the path is formed, aggregates the electric field signal into a voltage value data set, and obtains the current state of the hard pressure plate according to the voltage value data set.

[0084] The power module a114 supplies power to the electric field sensing component and the communication module a117.

[0085] The communication module a117 is communicatively connected to the concentrator 6 and sends the voltage value data sets or the current states of the hard pressure plates to the concentrator 6.

[0086] Furthermore, the protective shell is of a square structure and includes a housing 100 and a shielding layer 101. Among them, the housing 100 wraps around the outside of the shielding layer 101, the inner wall surface of the housing 100 abuts against the outer wall surface of the shielding layer 101, and the shielding layer 101 wraps around the outside of the path component and the electric field sensing component for shielding two adjacent terminal pressure plate sensors 1.

[0087] Furthermore, a fixing component for fixing the terminal pressing plate sensor 1 is provided on the bottom end face of the outer shell 100.

[0088] Optionally, the outer shell 100 is the outer shell of the terminal pressing plate sensor 1 and can be made of other insulating materials such as nylon, ABS plastic, ASA plastic, etc. It is used to protect the path component and the electric field sensing component, and at the same time avoid the situation of accidental contact with electricity when measuring the voltage at the line input end 2 and the line output end 3 on the hard pressing plate line, ensuring the safe use of the terminal pressing plate sensor 1.

[0089] Optionally, the fixing component is a fixing screw hole (not shown in the figure) formed on the bottom end face of the outer shell 100, and the outer shell 100 can be fixed on an external fixing strip through a screw fastener and the fixing screw hole.

[0090] Optionally, the shielding layer 101 is used to shield the mutual crosstalk between two adjacent terminal pressing plate sensors 1 and can be made of a metal material, or a metal layer is covered on the outer wall surface and / or the inner wall surface of the shielding layer 101. In addition, when the shielding layer 101 is grounded and connected to the electric field sensing component, the shielding layer 101 can shield the interference signals from the external environment, making the measurement of the electric field sensing component on the line input end 2 and the line output end 3 of the hard pressing plate line more accurate.

[0091] Furthermore, the line connection structure includes a path component, a first channel, and a second channel, where:

[0092] The first channel and the second channel respectively penetrate through the inside of the outer shell and the shielding layer;

[0093] A first accommodation position and a second accommodation position are formed on the path component. The first channel is communicated with the first accommodation position, and the second channel is communicated with the second accommodation position. The end of the line input end penetrates through the first channel and is placed in the first accommodation position, abutting against the inner wall surface of the first accommodation position. The end of the line output end penetrates through the second channel and is placed in the second accommodation position, abutting against the inner wall surface of the second accommodation position, so that the line input end and the line output end form a path.

[0094] In this embodiment, the path component includes a path forming member 102 and an insulating layer 103, where:

[0095] The insulating layer 103 covers the wall surface of the path forming member 102 adjacent to the shielding layer 101, and a first jack and a second jack are opened on the insulating layer 103;

[0096] A first slot and a second slot are formed on the path forming member 102. The first jack is communicated with the first slot to form a first accommodation position 1021, and the second jack is communicated with the second slot to form a second accommodation position 1022;

[0097] When one end of the line input terminal 2 is placed in the first accommodation position 1021, the end of the line input terminal 2 contacts the inner wall surface of the first slot, so that the formed first accommodation position 1021 abuts against the formed path component 102. When one end of the line output terminal 3 is placed in the second accommodation position 1022, when the end of the line output terminal 3 contacts the inner wall surface of the second slot, so that the formed second accommodation position 1022 abuts against the formed path component 102.

[0098] Furthermore, the insulating layer 103 is made of a non-metallic insulating material and is used for insulating and isolating the formed path component 102 and the shielding layer 101 to prevent a short circuit from occurring after the formed path component 102 contacts the shielding layer 101. Among them, the insulating layer 103 covers the first side wall surface, the second side wall surface and the top end surface of the formed path component 102. Among them, the first jack is formed on the first side wall surface, and the second jack is formed on the second side wall surface, and their positions correspond to each other. When the path assembly is placed inside the shielding layer 101, the first side wall surface, the second side wall surface and the top end surface of the insulating layer 103 respectively abut against the first inner side wall surface, the second inner side wall surface and the inner wall surface of the top of the shielding layer 101. At this time, the first jack is communicated with the second channel 105, and the second jack is communicated with the first channel 104.

[0099] Furthermore, the axis of the first jack, the axis of the second channel 105, the axis of the first channel 104 and the axis of the second jack are all on the same axis.

[0100] Optionally, the formed path component 102 is a metal plate. The first slot is formed by the local position of the first side wall surface of the metal plate recessing towards its central axis, and the second slot is formed by the local position of the second side wall surface of the metal plate recessing towards its central axis.

[0101] Furthermore, the axis of the first channel 104, the axis of the first jack, the axis of at least a part of the first slot, the axis of at least a part of the second slot, the axis of the second jack and the axis of the second channel 105 are all on the same axis.

[0102] In this embodiment, the position of the electric field induction component is adjacent to the formed path component 102, and it includes a housing a111, an electric field sensitive structure 112 placed inside the housing a111 and a single-chip microcomputer a113. The single-chip microcomputer a113 is respectively connected to the electric field sensitive structure 112, the power supply module a114 and the communication module a117, where:

[0103] A sensing through hole 1110 facing the formed path component 102 is opened on the housing a111;

[0104] The electric field sensitive structure 112 corresponds to the via forming component 102 through the sensing via 1110 to sense the electric field signal generated on the via forming component 102 after the via is formed, and converts the electric field signal into a voltage signal.

[0105] The single-chip microcomputer a113 converts the electric field signal into a voltage signal.

[0106] Further, the sensing via 1110 is opened on the top end face of the housing a111, facing the center position of the via forming component 102.

[0107] Further, a cavity 110 for isolating water vapor is also formed between the housing a111 and the shielding layer 101, which can better prevent moisture or water vapor in the air from entering, and avoid situations such as inaccurate sensing.

[0108] Optionally, the electric field sensitive structure 112 includes an electric field sensitive chip 116, and a MEMS electric field sensitive chip can be used to sense the electric field signal.

[0109] Preferably, the MEMS electric field sensitive chip is an electrostatically driven electric field sensitive chip, including an electrostatically driven resonator, induction electrodes and pads. The periodic vibration of the resonator modulates the change of the electric field on the induction electrodes to generate an alternating induction current, which can measure both DC electric fields and alternating electric fields.

[0110] In addition, the MEMS electric field sensitive chip can also be a thermally driven or electromagnetically driven electric field sensitive chip, which can vibrate horizontally or vertically.

[0111] In this embodiment, the housing a111 is made of a non-metallic insulating material to prevent short-circuit phenomena.

[0112] In this embodiment, specifically, the concentrator 6 includes a housing b, a communication module 602, a single-chip microcomputer b600 and a power module b601 placed inside the housing b. Among them, the single-chip microcomputer b600 is respectively connected to the communication module 602 and the power module b601, the power supply part 7 is electrically connected to the power module b601 through a line, and the communication module b602 is respectively communicatively connected to the communication module a117 and the host computer 8.

[0113] The communication module b602 receives the data set of each voltage value or the current state of each hard pressure plate sent by the terminal pressure plate sensor 1 through the communication module a117.

[0114] In this embodiment, when it is necessary to obtain the voltage signal after the circuit input end and the circuit output end in the hard pressure plate route form a path, first, the terminal pressure plate sensor 1 senses the electric field signal generated after the circuit input end 2 and the circuit output end 3 form a path, converts the electric field signal into voltage information, summarizes each voltage signal into a voltage value data set in chronological order, and sends the voltage value data set to the concentrator 6; then, the single-chip microcomputer b600 summarizes the voltage value data sets sent by each terminal pressure plate sensor 1 to form a total voltage value data set, and finally, sends the total voltage value data set to the host computer 8.

[0115] In this embodiment, when it is necessary to obtain the current state of the hard pressure plate, first, the terminal pressure plate sensor 1 senses the electric field signal generated after the circuit input end 2 and the circuit output end 3 form a path, converts the electric field signal into voltage information, summarizes each voltage signal into a voltage value data set in chronological order, determines the current state of the hard pressure plate according to the difference between the maximum value and the minimum value in the voltage value data set, and sends the current state of the hard pressure plate to the concentrator 6; then, the single-chip microcomputer b600 summarizes the current states of each hard pressure plate sent by each terminal pressure plate sensor 1 to form a set of the current states of the hard pressure plate, and finally, sends the current state of the hard pressure plate to the host computer 8.

[0116] In the first embodiment, the diameter of the first channel 104, the diameter of the first jack, the diameter of the first slot are substantially the same as the diameter of the circuit input end 2, and the diameter of the second channel 105, the diameter of the second jack, the diameter of the second slot are substantially the same as the diameter of the circuit output end 3, so that the circuit input end 2 and the circuit output end 3 can be respectively inserted into the inside of the first slot and the inside of the second slot in a tight fit manner.

[0117] In addition, in the metal plate, the first slot and the second slot have a certain elasticity. When the end of the circuit input end 2 and the end of the circuit output end 3 are respectively placed inside the first slot and the second slot, after the first slot and the second slot undergo elastic deformation, the end of the circuit input end 2 and the end of the circuit output end 3 are respectively clamped inside the first slot and the second slot.

[0118] Embodiment Two

[0119] As Figure 1 shown in Figure 2 and Figure 5 shown in Figure 6 This embodiment provides a hard pressure plate monitoring device, including a plurality of terminal pressure plate sensors 1, a concentrator 6 communicatively connected to each terminal pressure plate sensor 1, a power supply part 7 electrically connected to the concentrator 6, and a host computer 8 communicatively connected to the concentrator 6.

[0120] The difference between this embodiment and the above-mentioned first embodiment is that:

[0121] The terminal pressure plate sensor 1 further includes a first fastening position and a second fastening position, where:

[0122] The first fastening position includes a first fastening hole 106 penetrating through the interior of the protective shell and a first fastening groove 107 formed on the top end surface of the passage component. After the end of an external fastener is placed in the first fastening position, the line input end 2 is fastened in the first receiving position 1021;

[0123] The second fastening position includes a second fastening hole 108 penetrating through the interior of the protective shell and a second fastening groove 109 formed on the top end surface of the passage component. After the end of an external fastener is placed in the second fastening position, the line output end 3 is fastened on the second receiving position 1022.

[0124] Specifically, both the first fastening hole 106 and the second fastening hole 108 vertically penetrate through the interiors of the outer shell 100 and the shielding layer 101 respectively, and both the first fastening groove 107 and the second fastening groove 109 are vertically formed on the top end surface of the passage component. Among them, the first fastening groove 107 includes a first screw hole penetrating through the interior of the insulating layer 103 and a first thread groove formed on the top end surface of the passage component 102. The first fastening hole 106 is sequentially located directly above the first screw hole and the first thread groove, and the center positions of the three are on the same axis. The second fastening groove 109 includes a second screw hole penetrating through the interior of the insulating layer 103 and a second thread groove formed on the top end surface of the passage component 102. The second fastening hole 108 is sequentially located directly above the second screw hole and the second thread groove, and the center positions of the three are on the same axis.

[0125] In the second embodiment, when the line input end 2 and the line output end 3 are respectively inserted into the interior of the first receiving position 1021 and the interior of the second receiving position 1022, when the end of an external screw fastener is placed in the first fastening position, the first receiving position 1021 is deformed under the action of the fastener, and the line input end 2 is fastened in the first receiving position 1021. When the end of the external screw fastener is placed in the second fastening position, the second receiving position 1022 is deformed under the action of the fastener, and the line output end 3 is fastened in the second receiving position 1022. At this time, the line input end 2 and the line output end 3 form a path through the passage component.

[0126] Embodiment Three

[0127] Such as Figure 1 And Figure 2 、 Figure 7 And Figure 8As shown in the figure, this embodiment provides a hard pressure plate monitoring device, which includes a plurality of terminal pressure plate sensors 1, a concentrator 6 communicatively connected to each terminal pressure plate sensor 1, a power supply part 7 electrically connected to the concentrator 6, and a host computer 8 communicatively connected to the concentrator 6.

[0128] The difference between this embodiment and the above-mentioned Embodiment 1 and Embodiment 2 is that:

[0129] The fixing member 4 further includes a first hook-shaped portion 400, a second hook-shaped portion 401 provided on the bottom end surface of the housing 100, and an accommodating area 402 located between the first hook-shaped portion 400 and the second hook-shaped portion 401. The fixing screw hole is formed on the wall surface of the accommodating area 402.

[0130] When fixing the terminal pressure plate sensor 1 on the fixing strip 5, first, the fixing strip 5 is placed on the first hook-shaped portion 400 and the second hook-shaped portion 401, so that the fixing strip 5 is placed in the accommodating area 402. Then, the terminal pressure plate sensor 1 is fixed on the external fixing strip 5 through a screw fastener.

[0131] In the above-mentioned Embodiment 1 to Embodiment 3, the terminal pressure plate sensor combines the wiring terminal row and the electric field sensing component. Among them, the line connection structure (that is, the path component, the first channel and the second channel) constitutes the terminal wiring row structure, which can not only realize current transmission, but also quickly and accurately sense the voltage signal after the input end and the output end form a path in the hard pressure plate line.

[0132] Embodiment 4

[0133] As Figure 9 And Figure 10 As shown in the figure, on the panel 9 of the switchgear cabinet, there are multiple groups of wiring terminals arranged at equal intervals and a plurality of terminal pressure plate sensors 1. Among them, each wiring terminal includes an input terminal 10 and an output terminal 11 arranged vertically and spaced apart, and the terminal pressure plate sensor 1 is located between the input terminal 10 and the output terminal 11 of the same group.

[0134] Optionally, the terminal pressure plate sensor 1 is fixed on the back of the panel 9 of the switchgear cabinet through a matching screw fastener and is located between the input terminal 10 and the output terminal 11 of the same group. Or, the terminal pressure plate sensor 1 is adhered to the back of the panel 9 of the switchgear cabinet and is located in the area between the input terminal 10 and the output terminal 11 of the same group.

[0135] In this embodiment, the terminal pressure plate sensor 1 can adopt the terminal pressure plate sensor 1 described in the above-mentioned Embodiment 1 or Embodiment 2.

[0136] Embodiment 5

[0137] As Figure 11 And Figure 12As shown, this embodiment provides a method for monitoring the status of a hard pressure plate, which is applied to the hard pressure plate monitoring device described in Embodiments 1 to 3 above to monitor the current status of the hard pressure plate within a preset time period, including the following steps:

[0138] S1. Within the preset time period, each terminal pressure plate sensor senses the electric field signal generated on the path component after the path is formed between the line input end and the line output end, and converts the electric field signal into a voltage signal.

[0139] Specifically, the line input end and the line output end of the hard pressure plate line are respectively fixed in the first accommodation position and the second accommodation position of the terminal pressure plate sensor. The line input end and the line output end form a path through the path component, so that the path component can generate an electric field. Within the preset time period, the electric field sensing component in the terminal pressure plate sensor senses each electric field signal generated on the path component after the path is formed, and converts each electric field signal into each voltage signal.

[0140] Exemplarily, the preset time period is ten minutes. The electric field sensing component in the terminal pressure plate sensor senses multiple electric field signals at the current moment and in the previous ten minutes, and respectively converts the sensed multiple electric field signals into multiple voltage signals.

[0141] S2. Summarize each voltage signal into a voltage value data set according to the time sequence.

[0142] Specifically, the electric field sensing component in the terminal pressure plate sensor summarizes the obtained multiple voltage signals according to the time sequence to form a voltage value data set.

[0143] Exemplarily, the preset time period is ten minutes. After obtaining multiple voltage signals at the current moment and in the previous ten minutes, summarize the multiple voltage signals according to the time sequence to form a voltage value data set within the preset time period.

[0144] S3. Calculate the difference between the maximum value and the minimum value in the voltage value data set.

[0145] S4. Determine the current status of the hard pressure plate according to the difference.

[0146] Specifically, when the above difference is greater than the difference preset value, switch the on / off status of the above hard pressure plate. For example, when the current status of the hard pressure plate is the on state, when the difference is greater than the difference preset value, the status of the hard pressure plate changes from the on state to the off state. Another example is that when the current status of the hard pressure plate is the off state, when the difference is greater than the difference preset value, the status of the hard pressure plate changes from the off state to the on state.

[0147] Exemplarily, taking the direct current voltage being 110V when the hard pressure plate is in the on state as an example, as Figure 12As shown, it includes the hard pressure plate withdrawal state s0, and the voltage is always 0V in the withdrawal state; when the hard pressure plate is in the input state, corresponding to the s1 part, the voltage value Uo output by the hard pressure plate voltage monitoring device 10 rises and stabilizes at 110V in a short time; when the hard pressure plate is withdrawn or disconnected due to unreliable connection, corresponding to the s2 part, the voltage waveform changes to a slow decay discharge process of a floating metal body. Set the decay change value Δy as the difference between the stable voltage 110V and 10% of the stable voltage 110V, that is, Δy = 110V - 110V×10%. Under two environmental conditions with different humidities, record the decay time Δt experienced when the difference between Uo and the measured DC voltage value 110V is greater than Δy, which are Δt1 and Δt2 respectively.

[0148] When the environment changes, the decay time Δt will be very different. As Figure 10 shown, set the time threshold ΔT, that is, the preset time period, with a larger decay time Δt. The output voltage value Uo of the monitoring device has been stable at about 110V, and it is considered that the state of the hard pressure plate is input. However, due to external environmental changes, Uo jumps at ΔT. During the ΔT time, if the maximum change amount of Uo is less than Δy, it is considered that the state of the hard pressure plate does not change. If the maximum change amount of Uo is not less than Δy, it is considered that the state of the hard pressure plate has changed. Δy is the above-mentioned difference preset value.

[0149] S5. Each terminal pressure plate sensor sends the current state of the hard pressure plate to the concentrator.

[0150] S6. After the concentrator summarizes the current states of each hard pressure plate, it sends them to the host computer.

[0151] Specifically, the single-chip microcomputer b in the concentrator summarizes the current states of each hard pressure plate sent by each terminal pressure plate sensor, forms a set of the current states of the hard pressure plates, and sends the current states of the hard pressure plates to the host computer.

[0152] In this embodiment, the preset time period includes a preset sensing time interval and a preset sensing time interval point within the sensing time interval.

[0153] Embodiment Six

[0154] As Figure 13 shown, this embodiment provides a method for monitoring the voltage value in the hard pressure plate circuit, which is applied to the hard pressure plate monitoring device described in the above Embodiment One to Embodiment Three to monitor the voltage value of the hard pressure plate circuit within a preset time period, including the following steps:

[0155] S1`. Within the preset time period, each terminal pressure plate sensor senses the electric field signal generated on the path component after the path between the input end and the output end of the circuit is formed, and converts the electric field signal into a voltage signal.

[0156] Specifically, the line input end and the line output end of the hard pressure plate circuit are respectively fixed in the first accommodation position and the second accommodation position of the terminal pressure plate sensor. The line input end and the line output end form a path through the path component, so that the path component can generate an electric field. Within a preset time period, the electric field sensing component in the terminal pressure plate sensor senses each electric field signal generated on the path component after the path is formed, and converts each electric field signal into each voltage signal.

[0157] Exemplarily, the preset time period is ten minutes. The electric field sensing component in the terminal pressure plate sensor senses a plurality of electric field signals at the current moment and in the previous ten minutes, and respectively converts the sensed plurality of electric field signals into a plurality of voltage signals.

[0158] S2`. Summarize each voltage signal into a voltage value data set according to the time sequence.

[0159] Specifically, the electric field sensing component in the terminal pressure plate sensor summarizes the obtained plurality of voltage signals according to the time sequence to form a voltage value data set.

[0160] Exemplarily, the preset time period is ten minutes. After obtaining a plurality of voltage signals at the current moment and in the previous ten minutes, summarize the plurality of voltage signals according to the time sequence to form a voltage value data set within the preset time period.

[0161] S3`. Each terminal pressure plate sensor sends the voltage value data set to the concentrator.

[0162] S4`. After summarizing each voltage value data set, the concentrator sends it to the host computer.

[0163] Specifically, the single-chip microcomputer b in the concentrator summarizes the voltage value data sets sent by each terminal pressure plate sensor to form a total voltage value data set, and sends the total voltage value data set to the host computer.

[0164] In this embodiment, the preset time period includes a preset sensing time interval and a preset sensing time interval point within the sensing time interval.

[0165] The above is only the preferred embodiment of the present invention, which is illustrative rather than restrictive to the present invention. Those skilled in the art understand that many changes, modifications, and even equivalents can be made within the spirit and scope defined by the claims of the present invention, but all will fall within the protection scope of the present invention.

Claims

1. A hard plate monitoring device, characterized in that: It includes at least one terminal pressure plate sensor and a concentrator, each of the terminal pressure plate sensors is communicatively connected with the concentrator, wherein: The terminal pressure plate sensor senses the electric field signal generated after the line input end and the line output end form a path, summarizes each of the electric field signals into a voltage value data set, obtains the current state of the hard pressure plate according to the voltage value data set, and sends the voltage value data set or the current state of the hard pressure plate to the concentrator; The concentrator receives and summarizes the voltage value data set sent by each of the terminal pressure plate sensors or the current state of the hard pressure plate to form a total voltage value data set or a current state set of the hard pressure plate.

2. The hard plate monitoring device according to claim 1, characterized in that: The terminal pressure plate sensor includes a protective shell, a line connection structure, an electric field sensing component, a power module a and a communication module a, wherein: The protective shell is wrapped around the outer sides of the line connection structure, the electric field sensing component, the power module a and the communication module a; The line connection structure is arranged on one side of the electric field sensing component, and is formed with a first accommodation position for accommodating a line input end, and a second accommodation position for accommodating a line output end. When the end of the line input end is placed in the first accommodation position, and the end of the line output end is placed in the second accommodation position, a passage is formed between the line input end and the line output end; Within a preset time period, the electric field sensing component senses the electric field signal generated on the line connection structure after the path is formed, summarizes the electric field signal into a voltage value data set, and obtains the current state of the hard pressing plate according to the voltage value data set; The power module a is electrically connected to the electric field sensing component and the communication module a respectively; The communication module a is connected to the concentrator for communication, and sends a voltage value data set or a current state of the hard pressure plate to the concentrator.

3. The hard pressing plate monitoring device according to claim 2, characterized in that: The protective shell comprises an outer shell and a shielding layer, wherein: The outer shell is wrapped around the outer side of the shielding layer, the inner wall surface of the outer shell is in contact with the outer wall surface of the shielding layer, and a fixing component for fixing the terminal pressure plate sensor is provided on the bottom end surface of the outer shell; The shielding layer is wrapped around the outer side of the line connection structure and the electric field sensing component, and is used for shielding two adjacent terminal pressure plate sensors.

4. The hard pressing plate monitoring device according to claim 3, characterized in that: The line connection structure includes a passage component, a first channel and a second channel, wherein: The first channel and the second channel respectively penetrate the interior of the shell and the shielding layer; The first accommodating position and the second accommodating position are formed on the passage assembly, the first channel is connected to the first accommodating position, the second channel is connected to the second accommodating position, an end of the line input terminal passes through the first channel and is placed in the first accommodating position, and abuts against the inner wall surface of the first accommodating position, an end of the line output terminal passes through the second channel and is placed in the second accommodating position, and abuts against the inner wall surface of the second accommodating position, so that the line input terminal and the line output terminal form a passage.

5. The hard pressing plate monitoring device according to claim 4, characterized in that: The passage assembly includes a passage component and an insulating layer, wherein: The insulating layer covers the wall surface of the passage forming component adjacent to the shielding layer, and a first plug hole and a second plug hole are opened on the insulating layer; A first slot and a second slot are formed on the passage forming component, the first insertion hole is connected with the first slot to form the first accommodation position, and the second insertion hole is connected with the second slot to form the second accommodation position; When one end of the line input end is placed in the first accommodation position, it abuts against the passage forming component, and when one end of the line output end is placed in the second accommodation position, it abuts against the passage forming component.

6. The hard pressing plate monitoring device according to claim 5, characterized in that: The electric field sensing component includes a housing a, an electric field sensitive structure and a single chip microcomputer a disposed inside the housing a, wherein the single chip microcomputer a is respectively connected to the electric field sensitive structure, the power module a and the communication module a, wherein: A sensing through hole is provided on the housing a; The electric field sensitive structure comprises a sensing end facing the passage forming component, the sensing end corresponds to the passage forming component via the sensing through hole, so as to sense the electric field signal generated on the passage forming component after the passage is formed; The single chip microcomputer a aggregates the electric field signals into a voltage value data set, and obtains the current state of the hard pressing plate according to the voltage value data set.

7. The hard plate monitoring device according to claim 6, characterized in that: A cavity for isolating water vapor is also formed between the shell a and the shielding layer.

8. The hard pressing plate monitoring device according to any one of claims 2 to 7, characterized in that: The terminal pressure plate sensor further comprises a first fastening position and a second fastening position, wherein: The first fastening position includes a first fastening hole penetrating the top of the protective shell and a first fastening groove formed on the top end surface of the line connection structure. After the end of the external fastener is placed in the first fastening position, the line input end is fastened in the first accommodation position; The second fastening position includes a second fastening hole passing through the top of the protective shell, and a second fastening groove formed on the top end surface of the line connecting structure. After the end of the external fastener is placed in the second fastening position, the line output end is fastened to the second accommodating position.

9. The hard pressing plate monitoring device according to claim 1, characterized in that: The concentrator includes a single-chip microcomputer b, a power module b and a communication module b, wherein the single-chip microcomputer b is connected to the power module b and the communication module b respectively, wherein: The communication module b receives the voltage value data set sent by the terminal pressure plate sensor, or the current state of each hard pressure plate; The single chip microcomputer b performs secondary aggregation on each voltage value data set or the current state of each hard pressure plate to form a total voltage value data set or a current state set of the hard pressure plate.

10. The hard pressing plate monitoring device according to claim 9, characterized in that: The concentrator is also connected to the power supply part and the host computer respectively, wherein: The power supply part supplies power to the concentrator; The host computer receives the total set of voltage value data sent by the concentrator, or the current state set of the hard pressure plate.

11. A hard plate monitoring method, characterized in that: The monitoring device according to claim 1 is applied to monitor the current state of the hard pressing plate within a preset time period, comprising the following steps: Each terminal pressure plate sensor senses the electric field signal generated on the path component after the line input end and the line output end form a path, and converts the electric field signal into a voltage signal; Aggregate each voltage signal into a voltage value data set according to the time sequence; Calculate the difference between the maximum and minimum values ​​in the voltage value data set; Determining the current state of the hard pressing plate according to the difference; Each of the terminal pressure plate sensors sends the current state of the hard pressure plate to the concentrator; The concentrator summarizes the current status of each hard pressing plate and sends it to the host computer.

12. A hard plate monitoring method, characterized in that: The monitoring device according to claim 1 is applied to monitor the voltage value of the hard pressure plate circuit within a preset time period, comprising the following steps: Each terminal pressure plate sensor senses the electric field signal generated on the path component after the line input end and the line output end form a path, and converts the electric field signal into a voltage signal; Aggregate each voltage signal into a voltage value data set according to the time sequence; Each of the terminal pressure plate sensors sends a voltage value data set to a concentrator; The concentrator aggregates each voltage value data set and sends it to the host computer.

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