Hard strap state monitoring device

Abstract

The utility model discloses a hard pressing plate state monitoring device, and belongs to the technical field of power generation. The system comprises an electric field detection indication unit, a visual monitoring unit and a state management unit. The electric field detection indication unit comprises a perforated shielding sheet, an induction sheet and an indication lamp; when the hard pressing plate is in an input state, the induction electric field generated after the trepanning shielding sheet rotates generates current on the induction sheet, the induction sheet is connected with the indicating lamp, and the indicating lamp is lightened through the generated current. The electric field detection indication unit, the visual monitoring unit and the state management unit are connected in sequence. According to the utility model, the abnormal circuit state caused by intrusive detection is avoided, the misjudgment caused by visual detection of the on-off state position of the hard pressing plate is also avoided, the accuracy and the real-time performance of the on-off state data of the hard pressing plate are ensured, and the economic benefit of power generation of a power plant is ensured while the safe and stable operation of a unit is ensured.

Description

TECHNICAL FIELD

[0001] The utility model belongs to power generation technical field, concretely relates to a hard pressure plate state monitoring device cylinder. BACKGROUND

[0002] In power system, hard pressure plate is widely used in power secondary equipment outlet loop, and its putting-off state relies on artificial record and already can not cope with frequent and heavy putting-off requirement. If detection circuit is added on the original circuit, the normal function of the original circuit can be affected. Therefore, there are two general processing methods, one is visual detection, the visual detection is used to detect the position of the hard pressure plate, and then whether it is put in or withdrawn is judged, but this method can not judge the virtual putting, that is, the hard pressure plate is in the put-in position, but because of the virtual connection, the hard pressure plate is actually not put in due to the obstruction, resulting in misjudgment. Another way is to use electric field induction principle to measure the potential, and then upload the potential value. This method can accurately determine the putting-off result of the hard pressure plate, but it cannot determine whether the hard pressure plate is in the accurate putting-off position, and voltage measurement and uploading are required for each measuring point, the circuit is complex, the number of components is large, the network is more, and the effect is not ideal. SUMMARY

[0003] The utility model aims at overcoming the deficiency in the prior art, and provides a hard pressure plate state monitoring device, which avoids the misjudgment caused by visual detection of the hard pressure plate putting-off state position, ensures the accuracy and real-time of the hard pressure plate putting-off state data, and guarantees the economic benefit of power generation while ensuring the safe and stable operation of the unit.

[0004] The utility model provides the following technical scheme:

[0005] A hard pressure plate state monitoring device, comprising an electric field detection indication unit, a visual monitoring unit and a state management unit, the electric field detection indication unit comprises a perforated shielding sheet, an induction sheet and an indicator light, when the hard pressure plate is in the put-in state, the induction electric field after the rotation of the perforated shielding sheet generates current on the induction sheet, the induction sheet is connected with the indicator light, and the indicator light is lighted by generating current, the electric field detection indication unit, the visual monitoring unit and the state management unit are connected in sequence.

[0006] As an optional technical scheme of the utility model, the electric field detection indication unit further comprises an outer shielding layer and a motor, the perforated shielding sheet, the induction sheet and the motor are arranged in the inner part of the outer shielding layer, and the indicator light is located outside the outer shielding layer.

[0007] As an optional technical scheme of the utility model, the motor is connected with the perforated shielding sheet and is used to drive the rotation of the perforated shielding sheet.

[0008] As an optional technical scheme of the utility model, the electric field detection indication unit further includes an indication circuit; a triode is arranged in the indication circuit, and the triode is connected with an indicating lamp.

[0009] As an optional technical scheme of the utility model, the visual monitoring unit includes an image acquisition mechanism and a judgment module; the image acquisition mechanism adopts a fixed acquisition mechanism or a cruising acquisition mechanism and is used for acquiring position images of the hard press plate and images of the indicating lamp; and the judgment module is connected with the image acquisition mechanism.

[0010] As an optional technical scheme of the utility model, the visual monitoring unit is connected with the state management unit through a communication unit.

[0011] As an optional technical scheme of the utility model, the state management unit includes a state display; and the state display is used for displaying the state judgment result of the hard press plate.

[0012] As an optional technical scheme of the utility model, the state management unit includes a state display; and the state display is used for displaying the state judgment result of the hard press plate.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] The hard press plate state monitoring device provided by the utility model indicates according to whether the hard press plate is effectively put into operation through the electric field detection indication unit, the visual monitoring unit acquires position images of the hard press plate and indication images of the indicating lamp, and judges whether the put-in position and the put-in state are matched, so that the circuit state abnormality caused by the invasive detection is avoided, the misjudgment caused by the visual detection of the hard press plate put-in state position is avoided, the accuracy and the real-time performance of the hard press plate put-in state data are ensured, and the economic benefits of the power plant during power generation are ensured while the safe and stable operation of the unit is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is the structural schematic view of the hard press plate state monitoring device of the utility model embodiment;

[0016] Figure 2 is the structural schematic view of the electric field detection indication unit in the utility model embodiment.

[0017] In the figure, the marks are as follows: 1, outer shielding layer;2, open hole shielding sheet;3, induction sheet;4, motor;5, indicating lamp;6, indication circuit. DETAILED DESCRIPTION

[0018] The utility model will be further described below in combination with the drawings. The following embodiments are only used for more clearly explaining the technical scheme of the utility model, and cannot be used for limiting the protection scope of the utility model. Example 1

[0019] This embodiment provides a hard plate condition monitoring device, such as... Figure 1 As shown, it includes an electric field detection and indication unit, a visual monitoring unit, and a status management unit. The electric field detection and indication unit, the visual monitoring unit, and the status management unit are connected in sequence.

[0020] like Figure 2 As shown, the electric field detection and indication unit includes an open-hole shielding sheet 2, an induction sheet 3, and an indicator light 5. When the hard pressure plate is in the engaged state, the induced electric field after the open-hole shielding sheet 2 rotates generates a current on the induction sheet 3. The induction sheet 3 is connected to the indicator light 5, and the indicator light 5 is lit by generating a current.

[0021] Working principle:

[0022] The electric field detection and indication unit uses the DC electric field induction principle to detect the potential of the hard plate in the power system, and indicates the potential through indicator light 5. The light is on when the hard plate is engaged and off when the hard plate is disengaged.

[0023] The visual monitoring unit acquires images of the hard plate position and indicator lights.

[0024] The visual monitoring unit processes the acquired images and determines the deployment / retraction status based on the location information and deployment / retraction indicator light information, thus determining whether the hard pressure plate is in normal deployment / retraction or in an abnormal state.

[0025] The visual monitoring unit uploads the judgment results to the status management unit for display. Example 2

[0026] Based on Example 1, such as Figure 2 As shown, the electric field detection and indication unit also includes an outer shielding layer 1, a motor 4, and an indication circuit 6. The perforated shielding sheet 2, the sensing sheet 3, and the motor 4 are all located inside the outer shielding layer 1, while the indicator light 5 is located outside the outer shielding layer 1. The outer shielding layer 1 is used to isolate electric field interference from outside the hard pressure plate. The motor 4 is connected to the perforated shielding sheet 2 and is used to drive the perforated shielding sheet 2 to rotate. The indication circuit 6 contains a transistor, which is connected to the indicator light 5.

[0027] Furthermore, the perforated shielding sheet 2 adopts a shielding layer with partial perforations.

[0028] Potential detection principle:

[0029] When the hard press plate is put in and has a certain potential, the open hole shielding sheet 2 transmits the electric field formed by the potential of the hard press plate to the sensing sheet 3, the motor 4 makes the open hole shielding sheet 2 rotate periodically, the sensing sheet 3 periodically senses the electric field and generates current, the current is used to open the base of the transistor in the indicating circuit 6, so that the transistor is turned on, and the indicating lamp 5 is lighted.

[0030] The visual monitoring unit comprises an image acquisition mechanism and a judging module. The image acquisition mechanism adopts a fixed acquisition mechanism or a cruising acquisition mechanism, and is used for acquiring position images of the hard press plate and images of the indicating lamp 5. The judging module is connected to the image acquisition mechanism.

[0031] Further, the image acquisition mechanism comprises a camera, a lens and a light source, and the hard press plate position and the indicating lamp are photographed by using a fixed installation mode or a cruising camera. The camera used is a color camera, and one photographing can acquire states of multiple hard press plates in a certain range.

[0032] Judging principle:

[0033] (1) The position state of the hard press plate is judged by the position image, and the put-in and take-off state of the hard press plate is preliminarily judged.

[0034] (2) The indicating lamp information of the hard press plate is judged by the indicating image, and the actual put-in and take-off state of the hard press plate is judged.

[0035] (3) The put-in and take-off states of (1) and (2) are compared, and when the two are consistent, the put-in and take-off are correct; when (1) shows that the hard press plate has been put in the position, but the indicating lamp of (2) is not lighted, it is possible that there is a virtual put-in or there is an indicating lamp fault; when (1) shows that the hard press plate is in the take-off position, but the indicating lamp of (2) is lighted, it is possible that there is a virtual take-off or there is a fault in the line.

[0036] Further, the visual monitoring unit is connected to the state management unit through a communication unit. The communication unit adopts a modbus TCP protocol element or other protocols, uploads the judgment result to the main station and the substation of the signal station, and simultaneously uploads the judgment result to the state management unit.

[0037] The state management unit comprises a state display, and the state display is used for displaying the state judgment result of the hard press plate.

[0038] The hard press plate state monitoring device further comprises an alarm unit connected to the state management unit, and is used for alarming when the hard press plate is in an abnormal state.

[0039] In the description of the utility model, need understanding is, the term "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "internal", "external" and so on indicate the orientation or positional relation based on the orientation or positional relation shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and not indicate or imply that the indicated device or element must have a particular orientation, construct and operate in a particular orientation, therefore can not be understood as the restriction of the utility model. In addition, the term "first", "second" and so on are only for the purpose of description, and can not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" and so on can explicitly or implicitly include one or more features. In the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0040] In the description of the utility model, it should be pointed out that, unless otherwise specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integrally connected, can be mechanical connection, can also be electrical connection, can be directly connected, can also be indirectly connected through intermediate medium, can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood through specific circumstances.

[0041] The above is only the preferred embodiment of the utility model, it should be pointed out that, for ordinary skilled in the art, on the premise of not departing from the technical principles of the utility model, can also make several improvements and deformations, these improvements and deformations also should be considered as the protection scope of the utility model.

Claims

1. A hard-plate condition monitoring device, characterised in that: The electric field detection indicating unit, the visual monitoring unit and the state management unit are connected in sequence. The electric field detection indicating unit further comprises an outer shielding layer (1) and a motor (4). The open hole shielding sheet (2), the induction sheet (3) and the motor (4) are all arranged inside the outer shielding layer (1), and the indicating lamp (5) is located outside the outer shielding layer (1).

2. A hard-land press status monitoring device according to claim 1, characterized in that: The motor (4) is connected with the open hole shielding sheet (2) and is used for driving the open hole shielding sheet (2) to rotate. The electric field detection indicating unit further comprises an indicating circuit (6).

3. A hard-land press status monitoring device according to claim 2, characterised in that: The indicating circuit (6) is provided with a triode, and the triode is connected with the indicating lamp (5).

4. The hard-land state monitoring apparatus of claim 1, wherein: The visual monitoring unit comprises an image acquisition mechanism and a judgment module. The image acquisition mechanism adopts a fixed acquisition mechanism or a cruising acquisition mechanism and is used for acquiring position images of the hard press plate and images of the indicating lamp (5).

5. The hard-land state monitoring apparatus of claim 1, wherein: The judgment module is connected with the image acquisition mechanism. The visual monitoring unit is connected with the state management unit through a communication unit. The state management unit comprises a state display.

6. The hard-land state monitoring apparatus of claim 1, wherein: The state display is used for displaying the state judgment result of the hard press plate.

7. The hard-land state monitoring apparatus of claim 1, wherein: Further comprising an alarm unit connected with the state management unit and used for alarming when the hard press plate is in an abnormal state. ​ 8. The hard-land state monitoring apparatus of claim 1, wherein: ​

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