Building access control elevator linkage control system

Abstract

The invention relates to a building access control elevator linkage control system which comprises an access control mechanism arranged at an intelligent access control position and used for sending an access prohibition instruction when the height corresponding to a current object is larger than the maximum allowable access height of an elevator behind the intelligent access control, and otherwise, sending an access permission instruction; and the intelligent measuring mechanism is used for intelligently analyzing the height corresponding to the current object which is about to enter the access control based on the targeted screened visual data. The building access control elevator linkage control system is compact in design and wide in application. The height of the current object which is about to enter the access control can be identified by adopting targeted visual data, and when the identified height is greater than the maximum allowable entry height of the elevator behind the intelligent access control, the entry forbidding instruction is sent out, so that the height admission control of the elevator behind the intelligent access control is directly realized at the intelligent access control, and the safety of the elevator behind the intelligent access control is improved. And overhigh objects are prevented from wandering between the intelligent access control and the rear elevator.

Description

Technical Field

[0001] The present invention relates to the field of access control management, and in particular to a building access control and elevator linkage control system. Background Art

[0002] An elevator is a permanent transportation device that serves several specific floors in a building, with its car running on at least two rigid rails that are perpendicular to the horizontal plane or inclined at an angle of less than 15° to the plumb line. There are also step-type elevators, with the treads mounted on the tracks and running continuously, commonly known as escalators or moving walkways. A fixed lifting device that serves specified floors. A vertical lift has a car that runs between at least two rigid rails that are perpendicular or inclined at an angle of less than 15°. The size and structure of the car facilitate passengers to enter and exit or load and unload goods. It is customary to use elevators as a general term for vertical transportation tools in buildings regardless of their driving mode. According to speed, they can be divided into low-speed elevators (below 4 m / s), fast elevators (4 to 12 m / s) and high-speed elevators (above 12 m / s).

[0003] It can be seen that the height of objects entering each elevator is also limited due to the size of its car. However, in the prior art, the access control does not have a specific numerical control on the height of objects entering, resulting in objects that are too high wandering between the access control and the elevator after entering the access control because they cannot enter the elevator behind the access control. At the same time, there is a lack of a high-precision height identification mechanism to allow as many objects as possible to enter the elevator behind the access control. Summary of the invention

[0004] In order to solve the technical problems in the prior art, the present invention provides a building access control and elevator linkage control system, which can use a targeted image picture optimization mechanism to successively perform minimum value filtering processing, grayscale transformation enhancement processing and image content sharpening processing using high-pass filtering on the field collection image collected by the field collection mechanism directly above the smart access control, determine the number of pixel points included in the highest pixel column occupied by the current object in the received filtered sharpened image as the representative quantity value corresponding to the current object, obtain the average of the depth of field values ​​corresponding to each pixel point included in the highest pixel column as the current depth of field value corresponding to the current object, so as to complete the capture processing of various basic data for the visual analysis of the current height corresponding to the current object, and also based on the representative quantity value corresponding to the current object, the current depth of field value corresponding to the current object and the filtering. The imaging focal length corresponding to the sharpened image adopts a single-output multi-input information conversion formula to complete the visual analysis of the current height corresponding to the current object. The representative quantity value corresponding to the current object, the current depth of field value corresponding to the current object and the imaging focal length corresponding to the filtered sharpened image are respectively positively correlated with the current height corresponding to the current object, and an access control mechanism arranged at the smart access control position is introduced to issue a no-entry command when the current height corresponding to the current object measured intelligently is greater than the maximum allowable entry height of the elevator behind the smart access control, and to issue an entry permission command when the current height corresponding to the current object measured intelligently is less than or equal to the maximum allowable entry height of the elevator behind the smart access control, thereby directly realizing the height access control of the elevator behind the smart access control at the smart access control to avoid excessively high objects hovering between the smart access control and the elevator behind.

[0005] According to the present invention, a building access control and elevator linkage control system is provided, the system comprising: The access control mechanism is set at the smart access control position, and is used to issue a prohibition of entry instruction when the current height corresponding to the current object received is greater than the maximum allowable entry height of the elevator behind the smart access control, and is also used to issue a permission of entry instruction when the current height corresponding to the current object received is less than or equal to the maximum allowable entry height of the elevator behind the smart access control; A primary processing mechanism, connected to the on-site acquisition mechanism directly above the smart access control, is used to perform minimum value filtering on the received on-site acquisition image to obtain and output a corresponding minimum value filtered image; A secondary processing mechanism, connected to the primary processing mechanism, for performing grayscale transformation enhancement processing on the received minimum value filtered image to obtain and output a corresponding customized enhanced image; A final processing mechanism, connected to the secondary processing mechanism, for performing image content sharpening processing using high-pass filtering on the received customized enhanced image to obtain and output a corresponding filtered sharpened image; an intelligent measurement mechanism connected to the access control mechanism, and used to identify the object with the shallowest depth of field in the received filtered sharpened image as the current object, determine the number of pixels included in the highest pixel column occupied by the current object in the received filtered sharpened image as the representative number value corresponding to the current object, obtain the average of the depth of field values ​​corresponding to each pixel included in the highest pixel column as the current depth of field value corresponding to the current object, and use a single-output multi-input information conversion formula based on the representative number value corresponding to the current object, the current depth of field value corresponding to the current object, and the imaging focal length corresponding to the filtered sharpened image to complete the visual analysis of the current height corresponding to the current object, wherein the representative number value corresponding to the current object, the current depth of field value corresponding to the current object, and the imaging focal length corresponding to the filtered sharpened image are respectively positively correlated with the current height corresponding to the current object; Among them, the object with the shallowest depth of field in the received filtered sharpened image is identified as the current object, the number of pixels included in the highest pixel column occupied by the current object in the received filtered sharpened image is determined as the representative quantity value corresponding to the current object, and the average of the depth of field values ​​corresponding to each pixel point included in the highest pixel column is obtained as the current depth of field value corresponding to the current object, including: the object is a target in the filtered sharpened image excluding various background targets in the scene in front of the smart access control.

[0006] Therefore, the present invention has the following four outstanding technical effects: Technical effect 1: A primary processing mechanism, a secondary processing mechanism and a final processing mechanism are used in sequence to successively perform minimum value filtering processing, grayscale transformation enhancement processing and image content sharpening processing using high-pass filtering on the on-site collection image collected by the on-site collection mechanism directly above the smart access control, so as to obtain and output a filtered sharpened image with higher image quality; Technical effect 2: determining the number of pixels included in the highest pixel column occupied by the current object in the received filtered sharpened image as a representative number value corresponding to the current object, obtaining the average of the depth of field values ​​corresponding to each pixel included in the highest pixel column as the current depth of field value corresponding to the current object, so as to complete the capture and processing of various basic data for the visual analysis of the current height corresponding to the current object; Technical effect three: Based on the representative quantity value corresponding to the current object, the current depth of field value corresponding to the current object, and the imaging focal length corresponding to the filtered sharpened image, a single-output multi-input information conversion formula is used to complete the visual analysis of the current height corresponding to the current object. The representative quantity value corresponding to the current object, the current depth of field value corresponding to the current object, and the imaging focal length corresponding to the filtered sharpened image are respectively positively correlated with the current height corresponding to the current object; Technical effect four: Introduce an access control mechanism set at the smart access control position, which is used to issue a no-entry command when the current height corresponding to the current object measured intelligently is greater than the maximum allowed entry height of the elevator behind the smart access control, and to issue an entry permission command when the current height corresponding to the current object measured intelligently is less than or equal to the maximum allowed entry height of the elevator behind the smart access control, thereby directly realizing height access control of the elevator behind the smart access control at the smart access control, and preventing excessively high objects from hovering between the smart access control and the elevator behind.

[0007] The building access control and elevator linkage control system of the present invention is compact in design and widely used. Since it can use targeted visual data to identify the height of the current object that is about to enter the access control, and issue a prohibition of entry command when the identified height is greater than the maximum allowable entry height of the elevator behind the smart access control, the height access control of the elevator behind the smart access control can be directly achieved at the smart access control, preventing objects that are too high from wandering between the smart access control and the elevator behind. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] The embodiments of the present invention will be described below with reference to the accompanying drawings, wherein:

[0009] Figure 1 The structure block diagram of the building access control and elevator linkage control system according to the first embodiment of the present invention is shown.

[0010] Figure 2 The structure block diagram of the building access control and elevator linkage control system according to the second embodiment of the present invention is shown.

[0011] Figure 3 The structure block diagram of the building access control and elevator linkage control system according to the third embodiment of the present invention is shown. DETAILED DESCRIPTION

[0012] The following is a detailed description of an embodiment of the building access control and elevator linkage control system of the present invention with reference to the accompanying drawings.

[0013] Figure 1 The structure block diagram of the building access control and elevator linkage control system according to the first embodiment of the present invention is shown, and the system includes: The access control mechanism is set at the smart access control position, and is used to issue a prohibition of entry instruction when the current height corresponding to the current object received is greater than the maximum allowable entry height of the elevator behind the smart access control, and is also used to issue a permission of entry instruction when the current height corresponding to the current object received is less than or equal to the maximum allowable entry height of the elevator behind the smart access control; For example, the access control mechanism is set at the smart access control position, and is used to issue a prohibition of entry instruction when the current height corresponding to the received current object is greater than the maximum allowable entry height of the elevator behind the smart access control, and is also used to issue a permission to enter instruction when the current height corresponding to the received current object is less than or equal to the maximum allowable entry height of the elevator behind the smart access control. The method includes: a PAL chip can be selected to implement the access control mechanism, which is set at the smart access control position, and is used to issue a prohibition of entry instruction when the current height corresponding to the received current object is greater than the maximum allowable entry height of the elevator behind the smart access control, and is also used to issue a permission to enter instruction when the current height corresponding to the received current object is less than or equal to the maximum allowable entry height of the elevator behind the smart access control; A primary processing mechanism, connected to the on-site acquisition mechanism directly above the smart access control, is used to perform minimum value filtering on the received on-site acquisition image to obtain and output a corresponding minimum value filtered image; A secondary processing mechanism, connected to the primary processing mechanism, for performing grayscale transformation enhancement processing on the received minimum value filtered image to obtain and output a corresponding customized enhanced image; A final processing mechanism, connected to the secondary processing mechanism, for performing image content sharpening processing using high-pass filtering on the received customized enhanced image to obtain and output a corresponding filtered sharpened image; an intelligent measurement mechanism connected to the access control mechanism, and used to identify the object with the shallowest depth of field in the received filtered sharpened image as the current object, determine the number of pixels included in the highest pixel column occupied by the current object in the received filtered sharpened image as the representative number value corresponding to the current object, obtain the average of the depth of field values ​​corresponding to each pixel included in the highest pixel column as the current depth of field value corresponding to the current object, and use a single-output multi-input information conversion formula based on the representative number value corresponding to the current object, the current depth of field value corresponding to the current object, and the imaging focal length corresponding to the filtered sharpened image to complete the visual analysis of the current height corresponding to the current object, wherein the representative number value corresponding to the current object, the current depth of field value corresponding to the current object, and the imaging focal length corresponding to the filtered sharpened image are respectively positively correlated with the current height corresponding to the current object; Among them, identifying the object with the shallowest depth of field in the received filtered sharpened image as the current object, determining the number of pixels included in the highest pixel column occupied by the current object in the received filtered sharpened image as the representative number value corresponding to the current object, and obtaining the average of the depth of field values ​​corresponding to each pixel included in the highest pixel column as the current depth of field value corresponding to the current object includes: the object is a target excluding various background targets in the scene in front of the smart access control in the filtered sharpened image; Wherein, based on the representative quantity value corresponding to the current object, the current depth of field value corresponding to the current object and the imaging focal length corresponding to the filtered sharpened image, a single-output multi-input information conversion formula is used to complete the visual analysis of the current height corresponding to the current object, and the representative quantity value corresponding to the current object, the current depth of field value corresponding to the current object and the imaging focal length corresponding to the filtered sharpened image are respectively positively associated with the current height corresponding to the current object, including: using the MATLAB toolbox to implement the testing and simulation of the single-output multi-input information conversion formula; Among them, identifying the object with the shallowest depth of field in the received filtered sharpened image as the current object, determining the number of pixels included in the highest pixel column occupied by the current object in the received filtered sharpened image as the representative quantity value corresponding to the current object, and obtaining the average of the depth of field values ​​corresponding to each pixel point included in the highest pixel column as the current depth of field value corresponding to the current object also includes: determining the depth of field of each object based on the depth of field values ​​corresponding to each pixel point of the image block occupied by each object in the received filtered sharpened image.

[0014] Figure 2 The structure block diagram of the building access control and elevator linkage control system according to the second embodiment of the present invention is shown.

[0015] Compared to Figure 1 , Figure 2 The building access control and elevator linkage control system can also include: A voltage measuring mechanism, connected to the primary processing mechanism, the secondary processing mechanism, the final processing mechanism and the intelligent measuring mechanism, respectively, for measuring the current real-time voltage values ​​of the primary processing mechanism, the secondary processing mechanism, the final processing mechanism and the intelligent measuring mechanism respectively; Wherein, the voltage measuring mechanism is respectively connected with the primary processing mechanism, the secondary processing mechanism, the final processing mechanism and the intelligent measuring mechanism, and is used to respectively measure the current real-time voltage values ​​of the primary processing mechanism, the secondary processing mechanism, the final processing mechanism and the intelligent measuring mechanism, including: the voltage measuring mechanism includes a plurality of voltage measuring units, which are respectively connected with the primary processing mechanism, the secondary processing mechanism, the final processing mechanism and the intelligent measuring mechanism, so as to complete the measurement of the current real-time voltage values ​​of the primary processing mechanism, the secondary processing mechanism, the final processing mechanism and the intelligent measuring mechanism; Wherein, the voltage measurement mechanism includes a plurality of voltage measurement units, which are respectively connected to the primary processing mechanism, the secondary processing mechanism, the final processing mechanism and the intelligent measurement mechanism to complete the measurement of the current real-time voltage values ​​of the primary processing mechanism, the secondary processing mechanism, the final processing mechanism and the intelligent measurement mechanism respectively, including: the plurality of voltage measurement units are a plurality of voltage sensing circuits, which are respectively connected to the primary processing mechanism, the secondary processing mechanism, the final processing mechanism and the intelligent measurement mechanism to complete the measurement of the current real-time voltage values ​​of the primary processing mechanism, the secondary processing mechanism, the final processing mechanism and the intelligent measurement mechanism respectively; Wherein, the plurality of voltage measurement units are a plurality of voltage sensing circuits, which are used to be connected to the primary processing mechanism, the secondary processing mechanism, the final processing mechanism and the intelligent measuring mechanism respectively, so as to complete the respective measurement of the current real-time voltage values ​​of the primary processing mechanism, the secondary processing mechanism, the final processing mechanism and the intelligent measuring mechanism respectively, including: the structures of the plurality of voltage sensing circuits are the same; Among them, the multiple voltage measurement units are multiple voltage sensing circuits, which are used to be connected to the primary processing mechanism, the secondary processing mechanism, the final processing mechanism and the intelligent measurement mechanism respectively, so as to complete the separate measurement of the current real-time voltage values ​​of the primary processing mechanism, the secondary processing mechanism, the final processing mechanism and the intelligent measurement mechanism respectively, and also include: the multiple voltage sensing circuits have the same voltage measurement upper limit value and voltage measurement lower limit value.

[0016] Figure 3 The structure block diagram of the building access control and elevator linkage control system according to the third embodiment of the present invention is shown.

[0017] Compared to Figure 1 , Figure 3 The building access control and elevator linkage control system can also include: A field configuration interface, connected to the primary processing mechanism, the secondary processing mechanism, the final processing mechanism and the multiple voltage sensing circuits of the intelligent measurement mechanism, respectively, for real-time configuration of the operation configuration parameters of the multiple voltage sensing circuits of the primary processing mechanism, the secondary processing mechanism, the final processing mechanism and the intelligent measurement mechanism; Wherein, the field configuration interface is respectively connected to the multiple voltage sensing circuits of the primary processing mechanism, the secondary processing mechanism, the final processing mechanism and the intelligent measurement mechanism, and is used to configure the operation configuration parameters of the multiple voltage sensing circuits of the primary processing mechanism, the secondary processing mechanism, the final processing mechanism and the intelligent measurement mechanism in real time, including: the field configuration interface is a serial configuration interface; And wherein, the field configuration interface is respectively connected to the multiple voltage sensing circuits of the primary processing mechanism, the secondary processing mechanism, the final processing mechanism and the intelligent measuring mechanism, and is used to configure the operating configuration parameters of the multiple voltage sensing circuits of the primary processing mechanism, the secondary processing mechanism, the final processing mechanism and the intelligent measuring mechanism in real time. The configuration parameters include: for the primary processing mechanism, the secondary processing mechanism, the final processing mechanism and the intelligent measuring mechanism, the field configuration interface uses different configuration addresses to configure the operating configuration parameters of the multiple voltage sensing circuits of the primary processing mechanism, the secondary processing mechanism, the final processing mechanism and the intelligent measuring mechanism in real time.

[0018] In addition, in the building access control and elevator linkage control system, the object with the shallowest depth of field in the received filtered sharpened image is identified as the current object, the number of pixels included in the highest pixel column occupied by the current object in the received filtered sharpened image is determined as the representative number value corresponding to the current object, and the average of the depth of field values ​​corresponding to each pixel point included in the highest pixel column is obtained as the current depth of field value corresponding to the current object, which also includes: taking the average of the multiple depth of field values ​​remaining after removing the maximum depth of field value and the minimum depth of field value from the depth of field values ​​corresponding to each pixel point of the image block occupied by each object in the received filtered sharpened image as the depth of field of the object.

[0019] While the invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the claims.

Claims

1. A building access control and elevator linkage control system, characterized in that: The system comprises: The access control mechanism is set at the smart access control position, and is used to issue a prohibition of entry instruction when the current height corresponding to the current object received is greater than the maximum allowable entry height of the elevator behind the smart access control, and is also used to issue a permission of entry instruction when the current height corresponding to the current object received is less than or equal to the maximum allowable entry height of the elevator behind the smart access control; A primary processing mechanism, connected to the on-site acquisition mechanism directly above the smart access control, is used to perform minimum value filtering on the received on-site acquisition image to obtain and output a corresponding minimum value filtered image; A secondary processing mechanism, connected to the primary processing mechanism, for performing grayscale transformation enhancement processing on the received minimum value filtered image to obtain and output a corresponding customized enhanced image; A final processing mechanism, connected to the secondary processing mechanism, for performing image content sharpening processing using high-pass filtering on the received customized enhanced image to obtain and output a corresponding filtered sharpened image; an intelligent measurement mechanism connected to the access control mechanism, and used to identify the object with the shallowest depth of field in the received filtered sharpened image as the current object, determine the number of pixels included in the highest pixel column occupied by the current object in the received filtered sharpened image as the representative number value corresponding to the current object, obtain the average of the depth of field values ​​corresponding to each pixel included in the highest pixel column as the current depth of field value corresponding to the current object, and use a single-output multi-input information conversion formula based on the representative number value corresponding to the current object, the current depth of field value corresponding to the current object, and the imaging focal length corresponding to the filtered sharpened image to complete the visual analysis of the current height corresponding to the current object, wherein the representative number value corresponding to the current object, the current depth of field value corresponding to the current object, and the imaging focal length corresponding to the filtered sharpened image are respectively positively correlated with the current height corresponding to the current object; Among them, the object with the shallowest depth of field in the received filtered sharpened image is identified as the current object, the number of pixels included in the highest pixel column occupied by the current object in the received filtered sharpened image is determined as the representative quantity value corresponding to the current object, and the average of the depth of field values ​​corresponding to each pixel point included in the highest pixel column is obtained as the current depth of field value corresponding to the current object, including: the object is a target in the filtered sharpened image excluding various background targets in the scene in front of the smart access control.

2. The building access control and elevator linkage control system according to claim 1, characterized in that: Based on the representative quantity value corresponding to the current object, the current depth of field value corresponding to the current object and the imaging focal length corresponding to the filtered sharpened image, a single-output multi-input information conversion formula is used to complete the visual analysis of the current height corresponding to the current object, and the representative quantity value corresponding to the current object, the current depth of field value corresponding to the current object and the imaging focal length corresponding to the filtered sharpened image are respectively positively associated with the current height corresponding to the current object, including: using MATLAB toolbox to implement testing and simulation of the single-output multi-input information conversion formula; Among them, identifying the object with the shallowest depth of field in the received filtered sharpened image as the current object, determining the number of pixels included in the highest pixel column occupied by the current object in the received filtered sharpened image as the representative quantity value corresponding to the current object, and obtaining the average of the depth of field values ​​corresponding to each pixel point included in the highest pixel column as the current depth of field value corresponding to the current object also includes: determining the depth of field of each object based on the depth of field values ​​corresponding to each pixel point of the image block occupied by each object in the received filtered sharpened image.

3. The building access control and elevator linkage control system according to claim 2, characterized in that: The system further comprises: A voltage measuring mechanism, connected to the primary processing mechanism, the secondary processing mechanism, the final processing mechanism and the intelligent measuring mechanism, respectively, for measuring the current real-time voltage values ​​of the primary processing mechanism, the secondary processing mechanism, the final processing mechanism and the intelligent measuring mechanism respectively; Among them, the voltage measuring mechanism is respectively connected to the primary processing mechanism, the secondary processing mechanism, the final processing mechanism and the intelligent measuring mechanism, and is used to respectively measure the current real-time voltage values ​​of the primary processing mechanism, the secondary processing mechanism, the final processing mechanism and the intelligent measuring mechanism. The voltage measuring mechanism includes multiple voltage measuring units, which are respectively connected to the primary processing mechanism, the secondary processing mechanism, the final processing mechanism and the intelligent measuring mechanism to complete the respective measurements of the current real-time voltage values ​​of the primary processing mechanism, the secondary processing mechanism, the final processing mechanism and the intelligent measuring mechanism.

4. The building access control and elevator linkage control system according to claim 3, characterized in that: The voltage measuring mechanism includes a plurality of voltage measuring units, which are used to be respectively connected to the primary processing mechanism, the secondary processing mechanism, the final processing mechanism and the intelligent measuring mechanism to complete the respective measurements of the current real-time voltage values ​​of the primary processing mechanism, the secondary processing mechanism, the final processing mechanism and the intelligent measuring mechanism. The plurality of voltage measuring units are a plurality of voltage sensing circuits, which are used to be respectively connected to the primary processing mechanism, the secondary processing mechanism, the final processing mechanism and the intelligent measuring mechanism to complete the respective measurements of the current real-time voltage values ​​of the primary processing mechanism, the secondary processing mechanism, the final processing mechanism and the intelligent measuring mechanism.

5. The building access control and elevator linkage control system according to claim 4, characterized in that: The multiple voltage measurement units are multiple voltage sensing circuits, which are used to be connected to the primary processing mechanism, the secondary processing mechanism, the final processing mechanism and the intelligent measurement mechanism respectively, so as to complete the respective measurements of the current real-time voltage values ​​of the primary processing mechanism, the secondary processing mechanism, the final processing mechanism and the intelligent measurement mechanism, including: the structures of the multiple voltage sensing circuits are the same.

6. The building access control and elevator linkage control system according to claim 5, characterized in that: The multiple voltage measurement units are multiple voltage sensing circuits, which are used to be connected to the primary processing mechanism, the secondary processing mechanism, the final processing mechanism and the intelligent measurement mechanism respectively to complete the separate measurement of the current real-time voltage values ​​of the primary processing mechanism, the secondary processing mechanism, the final processing mechanism and the intelligent measurement mechanism. It also includes: the multiple voltage sensing circuits have the same voltage measurement upper limit value and voltage measurement lower limit value.

7. The building access control and elevator linkage control system according to claim 2, characterized in that: The system further comprises: The field configuration interface is respectively connected to the multiple voltage sensing circuits of the primary processing mechanism, the secondary processing mechanism, the final processing mechanism and the intelligent measurement mechanism, and is used for real-time configuration of the operating configuration parameters of the multiple voltage sensing circuits of the primary processing mechanism, the secondary processing mechanism, the final processing mechanism and the intelligent measurement mechanism.

8. The building access control and elevator linkage control system according to claim 7, characterized in that: The field configuration interface is respectively connected to the multiple voltage sensing circuits of the primary processing mechanism, the secondary processing mechanism, the final processing mechanism and the intelligent measurement mechanism, and is used for real-time configuration of the operating configuration parameters of the multiple voltage sensing circuits of the primary processing mechanism, the secondary processing mechanism, the final processing mechanism and the intelligent measurement mechanism, including: the field configuration interface is a serial configuration interface.

9. The building access control and elevator linkage control system according to claim 7, characterized in that: A field configuration interface is respectively connected to the multiple voltage sensing circuits of the primary processing mechanism, the secondary processing mechanism, the final processing mechanism and the intelligent measurement mechanism, and is used to configure the operating configuration parameters of the multiple voltage sensing circuits of the primary processing mechanism, the secondary processing mechanism, the final processing mechanism and the intelligent measurement mechanism in real time. The field configuration interface uses different configuration addresses to configure the operating configuration parameters of the multiple voltage sensing circuits of the primary processing mechanism, the secondary processing mechanism, the final processing mechanism and the intelligent measurement mechanism in real time.

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