Terminal pressing plate sensor, assembling method, monitoring equipment and monitoring method

Abstract

The invention provides a terminal pressing plate sensor, an assembling method, a monitoring device and a monitoring method. A protective shell wraps the outer sides of an access assembly and an electric field sensing assembly; the first channel penetrates through the interior of the protective shell and corresponds to the access assembly in position; the second channel penetrates through the interior of the protective shell and corresponds to the access assembly in position; the access assembly is arranged on one side of the electric field sensing assembly, a first accommodating position and a second accommodating position are formed, the end part of the input end penetrates through the first channel and then is arranged in the first accommodating position, and the end part of the output end penetrates through the second channel and then is arranged in the second accommodating position, so that the input end and the output end form an access; in a preset time period, the electric field sensing assembly senses an electric field signal generated on the access assembly after the access is formed, and converts the electric field signal into a voltage signal. The wiring terminal strip is combined with the electric field sensing assembly, so that current transmission can be realized, and a voltage signal after an input end and an output end in a hard pressing plate line form an access can be obtained.

Description

Technical Field

[0001] The present invention relates to the technical field of hard pressing plate monitoring, in particular to a terminal pressing plate sensor, an assembling method, a monitoring device and a 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 terminal pressure plate sensor, assembly method, monitoring equipment and 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 terminal pressure plate sensor, comprising a protective shell, a first channel, a second channel, a passage component, an electric field sensing component and a power module a, wherein:

[0008] The protective shell is wrapped around the outside of the passage component and the electric field sensing component;

[0009] The first channel runs through the interior of the protective shell so that the first channel corresponds to the position of the passage component;

[0010] The second channel runs through the interior of the protective shell so that the second channel corresponds to the position of the passage component;

[0011] The passage component is adjacent to a side of the electric field sensing component, on which a first accommodation position corresponding to the first passage and a second accommodation position corresponding to the second passage are formed, the end of the input end passes through the first passage and is placed in the first accommodation position, and the end of the output end passes through the second passage and is placed in the second accommodation position, so that the input end and the output end form a passage;

[0012] Within a preset time period, the electric field sensing component senses the electric field signal generated on the path component after the path is formed, and converts the electric field signal into a voltage signal.

[0013] In one embodiment, the protective shell includes an outer shell and a shielding layer, wherein:

[0014] 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;

[0015] The shielding layer is wrapped around the outside of the passage component and the electric field sensing component, and is used to shield the two adjacent terminal pressure plate sensors;

[0016] The first channel and the second channel respectively penetrate the interior of the shell and the shielding layer.

[0017] In one embodiment, the via assembly includes forming a via component and an insulating layer, wherein:

[0018] 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;

[0019] 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;

[0020] When the end of the input terminal is placed in the first accommodation position, it abuts against the passage forming component, and when the end of the output terminal is placed in the second accommodation position, it abuts against the passage forming component.

[0021] In one embodiment, 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, the single-chip microcomputer a is connected to the electric field sensitive structure and the power module a respectively, and the electric field sensitive structure and the power module a are both electrically connected to an external concentrator, wherein:

[0022] A sensing through hole facing the passage assembly is provided on the housing a;

[0023] The electric field sensitive structure corresponds to the passage forming component through the sensing through hole to sense the electric field signal generated on the passage forming component after the passage is formed;

[0024] The single chip microcomputer a converts the electric field signal into a voltage signal.

[0025] In one of the embodiments, a cavity for isolating water vapor is formed between the shell a and the shielding layer.

[0026] In one embodiment, it further includes a first fastening position and a second fastening position, wherein:

[0027] The first fastening position includes a first fastening hole penetrating the interior of the protective shell and a first fastening groove formed on the top end surface of the passage assembly, and after the end of the external fastener is placed in the first fastening position, the input end is fastened in the first accommodation position;

[0028] The second fastening position includes a second fastening hole penetrating the interior of the protective shell and a second fastening groove formed on the top end surface of the passage assembly. After the end of the external fastener is placed in the second fastening position, the output end is fastened in the second accommodating position.

[0029] In a second aspect, the present invention further provides an assembly method for assembling the above-mentioned terminal pressure plate sensor, comprising the following steps:

[0030] Placing the passage assembly inside the protective shell so that the first accommodation position is communicated with the first passage and the second accommodation position is communicated with the second passage;

[0031] The electric field sensing component is placed inside the protective shell and adjacent to the passage component, so that the electric field sensing component can sense the electric field signal generated on the passage component after the passage is formed and convert the electric field signal into a voltage signal.

[0032] In a third aspect, the present invention further provides a monitoring device, comprising at least one of the above-mentioned terminal pressure plate sensors, and a concentrator electrically connected to each of the terminal pressure plate sensors, wherein:

[0033] Within a preset time period, each of the terminal pressure plate sensors senses the electric field signal generated on the path component after the input end and the output end form a path, and converts the electric field signal into a voltage signal;

[0034] The concentrator converts each of the voltage signals input by each of the terminal pressure plate sensors into each of the voltage values, or obtains the current state of the hard pressure plate according to each of the voltage signals input by each of the terminal pressure plate sensors.

[0035] In one embodiment, the concentrator is also connected to the power supply part and the host computer respectively, wherein:

[0036] The power supply part supplies power to the concentrator and each of the terminal pressure plate sensors;

[0037] The host computer receives the voltage value data sets sent by the concentrator, or the current status of each hard pressure plate.

[0038] In a fourth aspect, the present invention further provides a monitoring method, which is applied to the above-mentioned monitoring device to monitor the current state of the hard pressing plate within a preset time period, comprising the following steps:

[0039] Within a preset time period, the electric field sensing component senses the electric field signal generated on the path component after the input end and the output end form a path, and converts the electric field signal into a voltage signal;

[0040] Aggregate each voltage signal into a voltage value data set according to the time sequence;

[0041] Calculate the difference between the maximum and minimum values ​​in the voltage value data set;

[0042] Determining the current state of the hard pressing plate according to the difference;

[0043] Upload the current status of the hard pressure plate to the host computer.

[0044] In a fifth aspect, the present invention further provides a monitoring method, 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, comprising the following steps:

[0045] Within a preset time period, the electric field sensing component senses the electric field signal generated on the path component after the input end and the output end form a path, and converts the electric field signal into a voltage signal;

[0046] Aggregate each voltage signal into a voltage value data set according to the time sequence;

[0047] Upload the voltage value data set to the host computer.

[0048] Compared with the prior art, the present invention has one of the following advantages:

[0049] The terminal pressure plate sensor provided by the present invention 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 input end and the output end of the hard pressure plate circuit form a path. Since the terminal pressure plate sensor has the characteristics of small size, high precision, high sensitivity, and long service life, 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 to the hard pressure plate circuit, it can not only simplify the complexity of the circuit in the power grid cabinet, but also reduce the monitoring cost of the hard pressure plate circuit;

[0050] Through the matching fasteners, the first fastening position and the second fastening position, the input end and the output end can be fastened in the first accommodation position and the second accommodation position respectively, ensuring the connection performance of the line;

[0051] By combining the terminal pressure plate sensor with the concentrator, the voltage value of the hard pressure plate circuit can be monitored according to the voltage signal, or the current state of the hard pressure plate can be monitored. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] Figure 1 A perspective view of a first example of a terminal pressure plate sensor in the present invention;

[0053] Figure 2 for Figure 1 A cross-sectional view of

[0054] Figure 3 is a perspective view of a second example of a terminal pressure plate sensor in the present invention;

[0055] Figure 4 for Figure 3 A cross-sectional view of

[0056] Figure 5 is a perspective view of a third example of a terminal pressure plate sensor in the present invention;

[0057] Figure 6 for Figure 5 Assembly drawing of the middle terminal pressure plate sensor;

[0058] Figure 7 This is a partial front view of the screen cabinet panel;

[0059] Figure 8 This is a partial back view of the screen cabinet panel;

[0060] Fig. 9 It is a structural block diagram of the monitoring device in the present invention;

[0061] Fig.10 for Fig. 9 Schematic diagram;

[0062] Fig.11 It is a flow chart of the hard pressing plate state monitoring method in the present invention;

[0063] Fig.12 for Fig.11 The voltage signal waveform diagram in ;

[0064] Fig.13 Flow chart of the method for monitoring voltage value in the hard pressing plate circuit of the present invention.

[0065] The main reference numerals are as follows:

[0066] 1-terminal pressure plate sensor; 100-housing; 101-shielding layer; 102-path forming component; 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; 1 13-single chip microcomputer a; 114-power module a; 115-power line; 116-electric field sensitive chip; 2-input end; 3-output end; 4-fixed component; 400-first hook-shaped portion; 401-second hook-shaped portion; 402-accommodating area; 5-fixed strip; 6-concentrator; 600-single chip microcomputer b; 601-power module b; 602-communication module; 7-power supply part; 8-host computer; 9-panel of cabinet; 10-input terminal; 11-output terminal. DETAILED DESCRIPTION

[0067] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0068] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "top surface", "bottom surface", "inside", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. It should be noted that when a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centrally arranged component at the same time. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0069] Embodiment 1

[0070] like Figure 1 and Figure 2 As shown, this embodiment provides a terminal pressure plate sensor 1, including a protective shell, a first channel 104, a second channel 105, a passage component, an electric field sensing component and a power module a, wherein:

[0071] A protective shell, wrapped around the outside of the passage component and the electric field sensing component;

[0072] A first channel 104 passes through the interior of the protective shell, so that the first channel 104 corresponds to the position of the passage component;

[0073] A second channel 105 passes through the interior of the protective shell, so that the second channel 105 corresponds to the position of the passage component;

[0074] A passage component is arranged at one side of the electric field sensing component, on which a first accommodation position 1021 corresponding to the first channel 104 and a second accommodation position 1022 corresponding to the second channel 105 are formed, one end of the input terminal 2 passes through the first channel 104 and is placed in the first accommodation position 1021, and one end of the output terminal 3 passes through the second channel 105 and is placed in the second accommodation position 1022, so that the input terminal 2 and the output terminal 3 form a passage;

[0075] Within a preset time period, the electric field sensing component senses the electric field signal generated on the path component after the path is formed, and converts the electric field signal into a voltage signal;

[0076] The power module a is electrically connected to an external concentrator via a power line 115 .

[0077] In this embodiment, specifically, the protective shell is a square structure, including an outer shell 100 and a shielding layer 101, wherein the outer shell 100 is wrapped around the outside of the shielding layer 101, the inner wall surface of the outer shell 100 is abutted against the outer wall surface of the shielding layer 101, and the shielding layer 101 is wrapped around the outside of the passage component and the electric field sensing component, and is used to shield the two adjacent terminal pressure plate sensors 1.

[0078] Furthermore, a fixing component for fixing the terminal pressure plate sensor 1 is provided on the bottom end surface of the housing 100 .

[0079] Optionally, the shell 100 is the shell of the terminal pressure plate sensor 1, which can be made of other insulating materials such as nylon, ABS plastic, ASA plastic, etc., and is used to protect the path components and electric field sensing components. At the same time, it also avoids accidental contact with electricity when using the input terminal 2 and the output terminal 3 on the hard pressure plate circuit to measure the voltage, thereby ensuring the safe use of the terminal pressure plate sensor 1.

[0080] Optionally, the fixing component is a fixing screw hole formed on the bottom end surface of the housing 100, and the housing 100 can be fixed to the external fixing strip by means of screw fasteners.

[0081] Optionally, the shielding layer 101 is used to shield the mutual crosstalk between two adjacent terminal pressure plate sensors 1, and can be made of metal material, or a metal layer is covered on the outer wall surface and / or inner wall surface of the shielding layer 101. In addition, when the shielding layer 101 is grounded to the electric field sensing component, the shielding layer 101 can shield the interference signal of the external environment, so that the electric field sensing component can measure the input terminal 2 and the output terminal 3 on the hard pressure plate circuit more accurately.

[0082] In this embodiment, specifically, the position of the first channel 104 corresponds to the position of the second channel 105, and both are close to the top end surface of the protective shell. The first channel 104 sequentially penetrates the first side wall of the shell 100 and the first side wall of the shielding layer 101, and the second channel 105 sequentially penetrates the second side wall of the shell 100 and the second side wall of the shielding layer 101.

[0083] Furthermore, the axis of the first channel 104 and the axis of the second channel 105 are on the same axis.

[0084] In this embodiment, specifically, the passage assembly includes a passage component 102 and an insulating layer 103, wherein:

[0085] The insulating layer 103 covers the wall surface of the passage component 102 adjacent to the shielding layer 101, and a first plug hole and a second plug hole are opened on the insulating layer 103;

[0086] A first slot and a second slot are formed on the passage forming component 102 . The first insertion hole is connected with the first slot to form a first accommodation position 1021 , and the second insertion hole is connected with the second slot to form a second accommodation position 1022 .

[0087] When one end of the input terminal 2 is placed in the first accommodation position 1021, the end of the input terminal 2 contacts the inner wall surface of the first slot, thereby abutting against the passage component 102 through the formed first accommodation position 1021. When one end of the output terminal 3 is placed in the second accommodation position 1022, the end of the output terminal 3 contacts the inner wall surface of the second slot, thereby abutting against the passage component 102 through the formed second accommodation position 1022.

[0088] In this embodiment, specifically, after the passage component is placed inside the protective shell, the top end surface of the passage component is adjacent to the inner wall surface of the top end surface of the shielding layer 101 , and the two side walls of the passage component are both adjacent to the two inner wall surfaces of the shielding layer 101 .

[0089] The passage component includes a passage forming component 102 and an insulating layer 103, wherein the insulating layer 103 covers a wall surface of the passage forming component 102 adjacent to the shielding layer 101, and a first plug hole and a second plug hole are provided on the insulating layer 103. A first slot and a second slot are formed on the passage forming component 102, the first plug hole is connected with the first slot to form a first accommodation position 1021, and the second plug hole is connected with the second slot to form a second accommodation position 1022;

[0090] When one end of the input terminal 2 is placed in the first accommodation position 1021 , it abuts against the passage forming component 102 , and when one end of the output terminal 3 is placed in the second accommodation position 1022 , it abuts against the passage forming component 102 .

[0091] Furthermore, the insulating layer 103 is made of a non-metallic insulating material, and is used to insulate and isolate the passage component 102 from the shielding layer 101, so as to prevent a short circuit from occurring after the passage component 102 contacts the shielding layer 101. The insulating layer 103 covers the first side wall, the second side wall and the top end face of the passage component 102, wherein the first plug hole is formed on the first side wall, and the second plug hole is formed on the second side wall, and the positions of the two correspond. When the passage component is placed inside the shielding layer 101, the first side wall, the second side wall and the top end face of the insulating layer 103 are respectively in contact with the first inner wall, the second inner wall and the inner wall of the top of the shielding layer 101, and at this time, the first plug hole is connected to the second passage 105, and the second plug hole is connected to the first passage 104.

[0092] Furthermore, the axis of the first plug hole, the axis of the second channel 105, the axis of the first channel 104 and the axis of the second plug hole are all on the same axis.

[0093] Optionally, the passage component 102 is formed as a metal plate, and a first slot is formed by partially recessing a first side wall of the metal plate toward its central axis, and a second slot is formed by partially recessing a second side wall of the metal plate toward its central axis.

[0094] Furthermore, the axis of the first channel 104, the axis of the first plug hole, the axis of at least a portion of the first slot, the axis of at least a portion of the second slot, the axis of the second plug hole and the axis of the second channel 105 are all on the same axis.

[0095] In this embodiment, specifically, the electric field sensing component includes a housing a111, an electric field sensitive structure 112 disposed inside the housing a111, and a single-chip computer a, the single-chip computer a is connected to the electric field sensitive structure 112 and the power module a respectively, and the electric field sensitive structure 112 is electrically connected to an external concentrator through a line, wherein:

[0096] The housing a111 is provided with a sensing through hole 1110 facing the passage forming component 102;

[0097] The electric field sensitive structure 112 corresponds to the path forming component 102 via the sensing through hole 1110 to sense the electric field signal generated on the path forming component 102 after the path is formed, and convert the electric field signal into a voltage signal.

[0098] The single chip microcomputer a converts the electric field signal into a voltage signal.

[0099] Furthermore, the sensing through hole 1110 is opened on the top end surface of the shell a111, toward the center position of the passage component 102.

[0100] Furthermore, a cavity 110 for isolating water vapor is formed between the shell a111 and the shielding layer 101, which can better prevent moisture or water vapor in the air from entering therein and avoid inaccurate perception and the like.

[0101] Optionally, the electric field sensitive structure 112 is used to sense electric field signals, and a MEMS electric field sensitive chip may be used. The MEMS electric field sensitive chip uses an electrostatically driven electric field sensitive chip, including an electrostatically driven resonator, a sensing electrode, and a pad. The periodic vibration of the resonator modulates the electric field on the sensing electrode to change, generating an alternating induced current, which can measure both direct current electric fields and alternating electric fields.

[0102] In addition, the MEMS electric field sensitive chip may also be a thermally driven or electromagnetically driven electric field sensitive chip, which may vibrate horizontally or vertically.

[0103] In this embodiment, the housing a111 is made of non-metallic insulating material to prevent short circuit.

[0104] In the above-mentioned embodiment 1, 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 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 output end 3, so that the input end 2 and the output end 3 can be respectively plugged into the inside of the first slot and the inside of the second slot in a tight-fitting manner.

[0105] In addition, in the metal plate, the first slot and the second slot have a certain elasticity. When the end of the input terminal 2 and the end of the output terminal 3 are respectively placed inside the first slot and the second slot, the first slot and the second slot are elastically deformed, and the end of the input terminal 2 and the end of the output terminal 3 are respectively clamped inside the first slot and the second slot.

[0106] Embodiment 2

[0107] like Figure 3 and Figure 4 As shown, this embodiment provides a terminal pressure plate sensor, and the difference between this embodiment and the above-mentioned embodiment 1 is that:

[0108] Also includes a first fastening position and a second fastening position, wherein:

[0109] The first fastening position includes a first fastening hole 106 penetrating the interior of the protective shell and a first fastening groove 107 formed on the top end surface of the passage assembly. After the end of the external fastener is placed in the first fastening position, the input end 2 is fastened in the first accommodation position 1021;

[0110] The second fastening position includes a second fastening hole 108 penetrating the interior of the protective shell and a second fastening groove 109 formed on the top end surface of the passage assembly. After the end of the external fastener is placed in the second fastening position, the output end 3 is fastened to the second accommodating position 1022.

[0111] Specifically, the first fastening hole 106 and the second fastening hole 108 are vertically penetrated through the inside of the housing 100 and the shielding layer 101 respectively, and the first fastening groove 107 and the second fastening groove 109 are vertically formed on the top end surface of the passage component. The first fastening groove 107 includes a first screw hole that penetrates through the inside 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 located directly above the first screw hole and the first thread groove in sequence, and the center positions of the three are on the same axis. The second fastening groove 109 includes a second screw hole that penetrates through the inside 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 located directly above the second screw hole and the second thread groove in sequence, and the center positions of the three are on the same axis.

[0112] In the second embodiment, when the input terminal 2 and the output terminal 3 are respectively inserted into the first accommodating position 1021 and the second accommodating position 1022, when the end of the external screw fastener is placed in the first fastening position, the first accommodating position 1021 is deformed by the action of the fastener, and the input terminal 2 is fastened in the first accommodating position 1021. When the end of the external screw fastener is placed in the second fastening position, the second accommodating position 1022 is deformed by the action of the fastener, and the output terminal 3 is fastened in the second accommodating position 1022. At this time, the input terminal 2 and the output terminal 3 form a passage through the passage component.

[0113] Embodiment 3

[0114] like Figure 5 and Figure 6 As shown, this embodiment provides a terminal pressure plate sensor, and the difference between this embodiment and the above-mentioned embodiment 1 and embodiment 2 is that:

[0115] The fixing component 4 further includes a first hook-shaped portion 400 , a second hook-shaped portion 401 , and a receiving area 402 located between the first hook-shaped portion 400 and the second hook-shaped portion 401 , and a fixing screw hole is formed on the wall of the receiving area 402 .

[0116] When fixing the terminal pressure plate sensor 1 on the fixed strip 5, first, fix the fixed strip 5 through the first hook-shaped portion 400 and the second hook-shaped portion 401 so that the fixed strip 5 is placed in the accommodating area 402, and then, fix the terminal pressure plate sensor 1 on the fixed strip 5 inside the screen cabinet through screw fasteners.

[0117] Embodiment 4

[0118] like Figure 7 and Figure 8 As shown, a plurality of groups of equally spaced connection terminals and a plurality of terminal pressure plate sensors 1 are provided on the cabinet panel 9, wherein each connection terminal includes input terminals 10 and output terminals 11 which are arranged in an upper and lower manner and spaced apart, and the terminal pressure plate sensor 1 is located between the input terminals 10 and output terminals 11 of the same group.

[0119] Optionally, the terminal pressure plate sensor 1 is fixed to the back of the screen cabinet panel 9 by matching screw fasteners 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 bonded to the back of the screen cabinet panel 9 and is located in the area between the input terminal 10 and the output terminal 11 of the same group.

[0120] In this embodiment, the terminal pressure plate sensor 1 may adopt the terminal pressure plate sensor 1 described in the above-mentioned embodiment 1 or embodiment 2.

[0121] Embodiment 5

[0122] This embodiment provides an assembly method for assembling the terminal pressure plate sensors described in the first embodiment, the second embodiment, and the third embodiment, including the following steps:

[0123] Placing the passage assembly inside the protective shell so that the first accommodation position is communicated with the first passage and the second accommodation position is communicated with the second passage;

[0124] The electric field sensing component is placed inside the protective shell and adjacent to the passage component, so that the electric field sensing component can sense the electric field signal generated on the passage component after the passage is formed and convert the electric field signal into a voltage signal.

[0125] Embodiment 6

[0126] like Fig. 9 and Fig.10As shown, this embodiment provides a monitoring device, including multiple terminal pressure plate sensors 1, a concentrator 6 electrically connected to each terminal pressure plate sensor 1, a host computer 8 communicatively connected to the concentrator 6, and a power supply part 7 electrically connected to the concentrator 6.

[0127] Specifically, the terminal pressure plate sensor 1 can adopt the terminal pressure plate sensor 1 in the above-mentioned embodiment one, embodiment two or embodiment three, within a preset time period, to sense the electric field signal generated on the path component after the input end and the output end form a path, and convert the electric field into a voltage signal. At the same time, each voltage signal is also input into the concentrator 6.

[0128] The concentrator 6 obtains each voltage value according to each voltage signal input from each terminal pressure plate sensor 1 , or obtains the current state of the hard pressure plate according to each voltage signal input from each terminal pressure plate sensor 1 .

[0129] The power supply part 7 supplies power to the concentrator 6 , and at the same time, supplies power to each terminal pressure plate sensor 1 through the concentrator 6 .

[0130] The host computer 8 receives the data sets of each voltage value or the current status of each hard pressure plate sent by the concentrator 6 .

[0131] Furthermore, the terminal pressure plate sensor 1 includes a housing a, an electric field sensitive structure disposed inside the housing a, and a single chip microcomputer a113, the single chip microcomputer a113 is connected to the electric field sensitive structure and a power module a114 respectively, wherein:

[0132] A sensing through hole is provided on the housing a, facing the passage forming component;

[0133] The electric field sensitive structure corresponds to the path forming component through the sensing through hole to sense the electric field signal generated on the path forming component 102 after the path is formed, and convert the electric field signal into a voltage signal.

[0134] The single chip microcomputer a113 converts the electric field signal into a voltage signal.

[0135] Furthermore, the electric field sensitive structure includes an electric field sensitive chip 116, which may be a MEMS electric field sensitive chip.

[0136] Preferably, the MEMS electric field sensitive chip is an electrostatically driven electric field sensitive chip, including an electrostatically driven resonator, a sensing electrode and a pad. The periodic vibration of the resonator modulates the electric field on the sensing electrode to change, generating an alternating induced current, which can measure both direct current electric fields and alternating electric fields.

[0137] In addition, the MEMS electric field sensitive chip also uses a thermally driven or electromagnetically driven electric field sensitive chip, which can vibrate horizontally or vertically.

[0138] The concentrator 6 includes a shell b, a communication module 602 placed inside the shell b, a single-chip microcomputer b600 and a power module b601, wherein the single-chip microcomputer b600 is connected to the communication module 602 and the power module b601 respectively, the single-chip microcomputer b600 is electrically connected to the single-chip microcomputer a113 through a line, the power supply part 7 is electrically connected to the power module b601 and the power module a114 in sequence through a line, and the communication module 602 is communicatively connected to the host computer 8.

[0139] In this embodiment, when it is necessary to obtain the voltage signal after the input end and the output end of the hard pressure plate route form a path, first, the terminal pressure plate sensor 1 inputs each voltage signal into the concentrator 6; then, the microcontroller b600 converts each voltage signal into each voltage value, summarizes each voltage value into a voltage value data set, and at the same time, sends the voltage value data set to the host computer 8.

[0140] In this embodiment, when it is necessary to obtain the current state of the hard pressure plate, first, the terminal pressure plate sensor 1 inputs each voltage signal into the concentrator 6; then, the single-chip microcomputer b600 converts each voltage signal into each voltage value, and summarizes each voltage value into a voltage value data set; then, the single-chip microcomputer b600 obtains the current state of the hard pressure plate according to each voltage value in the voltage value data set; finally, the single-chip microcomputer b600 sends the obtained current state of the hard pressure plate to the host computer 8.

[0141] In the above-mentioned embodiments 1 to 5, the terminal pressure plate sensor combines the terminal block with the electric field sensing component, wherein the first channel, the second channel and the path component constitute a terminal terminal block structure, which can not only realize current transmission, but also quickly and accurately sense the voltage signal after the input and output ends of the hard pressure plate circuit form a path.

[0142] Embodiment 7

[0143] like Fig.11 and Fig.12 As shown, this embodiment provides a monitoring method, which is applied to the monitoring device described in the fifth embodiment to monitor the current state of the hard pressing plate within a preset time period, including the following steps:

[0144] S1. Within a preset time period, the electric field sensing component senses the electric field signal generated on the path component after the input end and the output end form a path, and converts the electric field signal into a voltage signal.

[0145] Specifically, the input end and the output end of the hard pressure plate circuit are placed in the first accommodation position and the second accommodation position of the terminal pressure plate sensor through the first channel and the second channel respectively. After the input end and the output end form a path through the path component, the path component can generate an electric field. The electric field sensing component senses the electric field signals generated on the path component after the path is formed, and converts the electric field signals into voltage signals.

[0146] S2. Aggregate each voltage signal into a voltage value data set according to time sequence.

[0147] Specifically, the terminal pressure plate sensor inputs the multiple voltage signals obtained within the preset time period into the concentrator connected to it in sequence. The concentrator obtains the corresponding multiple voltage values ​​based on the multiple voltage signals within the preset time period, and summarizes the multiple voltage values ​​according to the time sequence of the preset time period to form a voltage value data set.

[0148] Exemplarily, the preset time period is ten minutes, then multiple voltage signals obtained at the current moment and the previous ten minutes are obtained, and the multiple voltage signals are converted into corresponding multiple voltage values, and after aggregation, a voltage value data set at the current moment and the previous ten minutes is obtained.

[0149] S3. Calculate the difference between the maximum value and the minimum value in the voltage value data set.

[0150] S4. Determine the current state of the hard pressing plate according to the difference.

[0151] Specifically, when the difference is greater than the preset difference value, the in-and-out state of the hard pressure plate is switched. For example, the current state of the hard pressure plate is the in-state, and when the difference is greater than the preset difference value, the state of the hard pressure plate is changed from the in-state to the out-state. For another example, the current state of the hard pressure plate is the out-state, and when the difference is greater than the preset difference value, the state of the hard pressure plate is changed from the out-state to the in-state.

[0152] For example, when the hard pressing plate is in the input state, the DC voltage is 110V. Fig.12 As shown, it includes the hard pressure plate exit state s0, in which the voltage is always 0V; when the hard pressure plate is in the input state, corresponding to part s1, the voltage value Uo output by the hard pressure plate voltage monitoring device 10 rises in a short time and stabilizes at 110V; when the hard pressure plate is exited or disconnected due to unreliable connection, corresponding to part s2, the voltage waveform changes to the slow decay discharge process of the suspended metal body. The decay change value Δy is set to be 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 humidity, the decay time Δt experienced when the difference between Uo and the measured DC voltage value 110V is greater than Δy is recorded, which are Δt1 and Δt2 respectively.

[0153] When the environment changes, the decay time Δt will be very different. Fig.10As shown, the time threshold ΔT, i.e., the preset time period, is set with a larger decay time Δt. The output voltage value Uo of the monitoring device has been stable at around 110V, and the state of the hard pressure plate is considered to be in operation. However, due to changes in the external environment, Uo jumps in ΔT. Within the ΔT time, if the maximum change of Uo is less than Δy, it is considered that the state of the hard pressure plate has not changed. If the maximum change of Uo is not less than Δy, it is considered that the state of the hard pressure plate has changed. Δy is the preset value of the above difference.

[0154] S5. Upload the current state of the hard pressing plate to the host computer.

[0155] In this embodiment, the preset time period includes a preset sensing time interval and a preset sensing time interval point in the sensing time interval.

[0156] Embodiment 8

[0157] like Fig.13 As shown, this embodiment provides a monitoring method, which is applied to the monitoring device recorded in the above-mentioned embodiment 5 to monitor the voltage value of the hard pressure plate circuit within a preset time period, including the following steps:

[0158] S1`, within a preset time period, the electric field sensing component senses the electric field signal generated on the path component after the input end and the output end form a path, and converts the electric field signal into a voltage signal.

[0159] Specifically, the input end and the output end of the hard pressure plate circuit are placed in the first accommodation position and the second accommodation position of the terminal pressure plate sensor through the first channel and the second channel respectively. After the input end and the output end form a path through the path component, the path component can generate an electric field. The electric field sensing component senses the electric field signals generated on the path component after the path is formed, and converts the electric field signals into voltage signals.

[0160] S2`, summarizing each voltage signal into a voltage value data set according to time sequence.

[0161] Specifically, the terminal pressure plate sensor inputs the multiple voltage signals obtained within the preset time period into the concentrator connected to it in sequence. The concentrator obtains the corresponding multiple voltage values ​​based on the multiple voltage signals within the preset time period, and summarizes the multiple voltage values ​​according to the time sequence of the preset time period to form a voltage value data set.

[0162] Exemplarily, the preset time period is ten minutes, then multiple voltage signals obtained at the current moment and the previous ten minutes are obtained, and the multiple voltage signals are converted into corresponding multiple voltage values, and after aggregation, a voltage value data set at the current moment and the previous ten minutes is obtained.

[0163] S3`, upload the 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 in the sensing time interval.

[0165] The above description is only a preferred embodiment of the present invention, which is only illustrative and not restrictive of the present invention. Those skilled in the art understand that many changes, modifications, and even equivalences may be made to the present invention within the spirit and scope defined by the claims of the present invention, but all of them will fall within the scope of protection of the present invention.

Claims

1. A terminal pressure plate sensor, characterized in that: It includes a protective shell, a first channel, a second channel, a passage component, an electric field sensing component and a power module a, wherein: The protective shell is wrapped around the outside of the passage component and the electric field sensing component; The first channel runs through the interior of the protective shell so that the first channel corresponds to the position of the passage component; The second channel runs through the interior of the protective shell so that the second channel corresponds to the position of the passage component; The passage component is adjacent to a side of the electric field sensing component, on which a first accommodation position corresponding to the first passage and a second accommodation position corresponding to the second passage are formed, the end of the input end passes through the first passage and is placed in the first accommodation position, and the end of the output end passes through the second passage and is placed in the second accommodation position, so that the input end and the output end form a passage; Within a preset time period, the electric field sensing component senses the electric field signal generated on the path component after the path is formed, and converts the electric field signal into a voltage signal.

2. The terminal pressure plate sensor according to claim 1, 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 outside of the passage component and the electric field sensing component, and is used to shield the two adjacent terminal pressure plate sensors; The first channel and the second channel respectively penetrate the interior of the shell and the shielding layer.

3. The terminal pressure plate sensor according to claim 2, 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 the end of the input terminal is placed in the first accommodation position, it abuts against the passage forming component, and when the end of the output terminal is placed in the second accommodation position, it abuts against the passage forming component.

4. The terminal pressure plate sensor according to claim 3, 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, the single chip microcomputer a is connected to the electric field sensitive structure and the power module a respectively, the electric field sensitive structure and the power module a are both electrically connected to an external concentrator, wherein: A sensing through hole facing the passage assembly is provided on the housing a; The electric field sensitive structure corresponds to the passage forming component through the sensing through hole to sense the electric field signal generated on the passage forming component after the passage is formed; The single chip microcomputer a converts the electric field signal into a voltage signal.

5. The terminal pressure plate sensor according to claim 4, characterized in that: A cavity for isolating water vapor is also formed between the shell a and the shielding layer.

6. The terminal pressure plate sensor according to any one of claims 1 to 5, characterized in that: Also includes a first fastening position and a second fastening position, wherein: The first fastening position includes a first fastening hole penetrating the interior of the protective shell and a first fastening groove formed on the top end surface of the passage assembly, and after the end of the external fastener is placed in the first fastening position, the input end is fastened in the first accommodation position; The second fastening position includes a second fastening hole penetrating the interior of the protective shell and a second fastening groove formed on the top end surface of the passage assembly. After the end of the external fastener is placed in the second fastening position, the output end is fastened in the second accommodating position.

7. An assembly method, characterized in that: A terminal pressure plate sensor for assembling any one of claims 1 to 6, comprising the following steps: Placing the passage assembly inside the protective shell so that the first accommodation position is communicated with the first passage and the second accommodation position is communicated with the second passage; The electric field sensing component is placed inside the protective shell and adjacent to the passage component, so that the electric field sensing component can sense the electric field signal generated on the passage component after the passage is formed and convert the electric field signal into a voltage signal.

8. A monitoring device, characterized in that: The device comprises at least one terminal pressure plate sensor according to any one of claims 1 to 6, and a concentrator electrically connected to each of the terminal pressure plate sensors, wherein: Within a preset time period, each of the terminal pressure plate sensors senses the electric field signal generated on the path component after the input end and the output end form a path, and converts the electric field signal into a voltage signal; The concentrator converts each of the voltage signals input by each of the terminal pressure plate sensors into each of the voltage values, or obtains the current state of the hard pressure plate according to each of the voltage signals input by each of the terminal pressure plate sensors.

9. The monitoring device according to claim 8, 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 and each of the terminal pressure plate sensors; The host computer receives the voltage value data sets sent by the concentrator, or the current status of each hard pressure plate.

10. A monitoring method, characterized in that: The monitoring device as claimed in claim 9 is used to monitor the current state of the hard pressing plate within a preset time period, comprising the following steps: Within a preset time period, the electric field sensing component senses the electric field signal generated on the path component after the input end and the 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; Upload the current status of the hard pressure plate to the host computer.

11. A monitoring method, characterized in that: The monitoring device according to claim 9 is used to monitor the voltage value of the hard pressure plate circuit within a preset time period, comprising the following steps: Within a preset time period, the electric field sensing component senses the electric field signal generated on the path component after the input end and the 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; Upload the voltage value data set to the host computer.

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