CN112429622A - Escalator monitoring network system based on block chain and IPFS - Google Patents

Escalator monitoring network system based on block chain and IPFS Download PDF

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Publication number
CN112429622A
CN112429622A CN202011427769.3A CN202011427769A CN112429622A CN 112429622 A CN112429622 A CN 112429622A CN 202011427769 A CN202011427769 A CN 202011427769A CN 112429622 A CN112429622 A CN 112429622A
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China
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data
escalator
monitoring
chain
sub
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CN202011427769.3A
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CN112429622B (en
Inventor
张琨
朱丹
张�浩
李晓聃
殷勤
邱绍峰
周明翔
刘辉
李豫
张正舟
张俊岭
彭方进
游鹏辉
陈情
应颖
朱冬
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China Railway Siyuan Survey and Design Group Co Ltd
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China Railway Siyuan Survey and Design Group Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B25/00Control of escalators or moving walkways
    • B66B25/003Methods or algorithms therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B29/00Safety devices of escalators or moving walkways
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B29/00Safety devices of escalators or moving walkways
    • B66B29/005Applications of security monitors
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B50/00Energy efficient technologies in elevators, escalators and moving walkways, e.g. energy saving or recuperation technologies

Abstract

The invention discloses an escalator monitoring network system based on a block chain and an IPFS (internet protocol file system), which comprises a plurality of environment sensing monitoring modules, escalator block chain modules, an IPFS interplanetary file subsystem and escalator monitoring modules, wherein the environment sensing monitoring modules correspond to a plurality of escalators to be monitored one by one, the escalator monitoring network system is built by the block chain and the IPFS technology, the safety of data transmission is guaranteed by the characteristic that the block chain innate data cannot be falsified and is highly transparent, a double-chain structure combined by primary and secondary chains is adopted, the sub-chain is responsible for data caching, the main chain is responsible for data query, and meanwhile, the IPFS interplanetary file network system is used for storing monitoring data, so that the system capacity is improved, and the problems of low escalator monitoring safety, low information processing efficiency and poor capacity expansion capability if the block chain technology is adopted are integrally solved.

Description

Escalator monitoring network system based on block chain and IPFS
Technical Field
The invention belongs to the technical field of escalator monitoring, and particularly relates to an escalator monitoring network system based on a block chain and an IPFS (internet protocol file system).
Background
The escalator is used for transporting passengers upwards or downwards between different floor heights of a building, and is widely used in places with concentrated pedestrian flow, such as railway stations, subway stations, bus stations, shopping malls, airports and the like. The escalator has the working principle that a chain type circulating conveyor belt belongs to forced driving, so that equipment can be damaged once jamming occurs, moving parts of the escalator are exposed outside and are in direct contact with people, and huge potential safety hazards exist.
Most of the existing escalator monitoring systems adopt a centralized structure, namely, data information is acquired by respective escalator sensors and then directly transmitted to a central system, and data safety and integrity cannot be guaranteed. If the block chain technology is adopted to build an escalator monitoring network, the problems of low data transmission efficiency and poor capacity expansion capability of the block chain in the world exist.
Disclosure of Invention
Aiming at least one defect or improvement requirement in the prior art, the invention provides an escalator monitoring network system based on a block chain and an IPFS (internet protocol file system). the escalator monitoring network is built by adopting the block chain technology, the safety of data transmission is ensured by utilizing the characteristic that the block chain cannot be tampered, a mode that a primary-secondary chain is combined with the IPFS interplanetary file system to store and inquire and verify data is provided, and the problems of low processing efficiency and poor capacity expansion capability of the block chain innate data are solved.
In order to achieve the above object, according to one aspect of the present invention, an escalator monitoring network system based on a block chain and an IPFS is provided, the system includes a plurality of environment sensing monitoring modules corresponding to a plurality of escalators to be monitored one by one, an escalator block chain module, an IPFS interplanetary file subsystem and an escalator monitoring module, the escalator block chain module is respectively connected to the plurality of environment sensing monitoring modules, the IPFS interplanetary file subsystem and an escalator monitoring terminal, the environment sensing monitoring module is used for monitoring the corresponding escalators to be monitored in real time and uploading corresponding escalator monitoring data periodically;
the escalator block chain module comprises a sub chain provided with a plurality of sub blocks and a mother chain provided with a plurality of mother blocks, wherein the sub chain is used for receiving and caching escalator monitoring data acquired by the environment sensing monitoring module and periodically transferring the escalator monitoring data to the IPFS interplanetary file subsystem; the parent chain is used for storing a data tag corresponding to the storage data of the child block, and calling the storage data of the child chain or the storage data uploaded to the IPFS interplanetary file subsystem by using the data tag;
the IPFS interplanetary file subsystem is used for storing the uploading data and the data labels of the sub-blocks, receiving the query instruction of the mother chain, analyzing to obtain the corresponding data labels, and obtaining the corresponding monitoring data from the stored data by using the corresponding data labels;
the escalator monitoring module is used for acquiring the escalator regular overhaul and maintenance instruction and the escalator regular overhaul and maintenance instruction to generate an inquiry request, and sending the inquiry request to the master chain to acquire required monitoring data.
As a further improvement of the invention, the environment sensing module comprises a monitoring camera, a plurality of sensors and a data acquisition box, wherein the monitoring camera is used for acquiring image signals of the escalator to be monitored in real time, the sensors are used for acquiring monitoring data of parts of the escalator to be monitored, and the data acquisition box is used for collecting the acquisition data uploaded by various sensors and sending the acquisition data to the escalator block chain module.
As a further improvement of the invention, the types of sensors include one or more of a vibration sensor, a temperature sensor, and a noise sensor.
As a further improvement of the invention, the data processing process of the subchain comprises the following steps:
and starting from the initial sub-block, continuously uploading the monitoring data of the environment sensing monitoring module to the sub-block until the storage capacity of the sub-block is used up, continuously storing the data into the next sub-block, and so on, and sequentially linking the sub-blocks into sub-chains.
As a further improvement of the present invention, the data processing process of the child chain further includes:
and each sub-block carries out Hash encryption calculation on the collected escalator monitoring data to obtain a Merkle root which is used as a data label of the data.
As a further improvement of the invention, when the length of the sub-chain reaches a preset value, the existing data and the data label are uploaded to an IPFS interplanetary file subsystem, and the data on the sub-chain is cleared.
As a further improvement of the invention, the IPFS interplanetary file subsystem comprises a plurality of network nodes and a lookup table which are in one-to-one correspondence with the escalator to be monitored, the lookup table comprises the ID of the escalator to be monitored, escalator monitoring data and corresponding data labels, after the IPFS interplanetary file subsystem receives the uploaded data and the data labels of the sub-blocks, the ID of the escalator to be monitored is obtained through the data labels, the uploaded data and the data labels are stored to the network nodes corresponding to the ID of the escalator to be monitored, and meanwhile, the data of the lookup table is updated.
As a further improvement of the invention, after the IPFS interplanetary file subsystem receives the query instruction of the parent chain, the corresponding data label is obtained by analyzing the query instruction, the corresponding network node is obtained by the lookup table, and the corresponding escalator monitoring data is called from the network node by using the corresponding data label.
As a further improvement of the invention, the escalator monitoring module comprises an operation management monitoring terminal, a maintenance detection terminal and an escalator monitoring center sub-module, the escalator monitoring center sub-module is respectively connected with the main chain and the IPFS interplanetary file sub-system, the operation management monitoring terminal is used for uploading daily escalator monitoring instructions to the escalator monitoring center sub-module, the maintenance detection terminal is used for uploading escalator regular maintenance instructions to the escalator monitoring center sub-module, and the escalator monitoring center sub-module is used for generating query requests according to the uploaded escalator regular maintenance instructions and sending the query requests to the main chain.
As a further improvement of the invention, the escalator monitoring center submodule is also used for acquiring manufacturer test data and evaluating the state of the escalator to be monitored according to the manufacturer test data and the monitoring data.
In general, compared with the prior art, the above technical solution contemplated by the present invention can achieve the following beneficial effects:
according to the escalator monitoring network system based on the block chain and the IPFS, the escalator monitoring network system is built through the block chain and the IPFS technology, the safety of data transmission is guaranteed by the aid of the characteristic that the block chain innate data cannot be tampered and are highly transparent, a double-chain structure combined by a primary chain and a secondary chain is adopted, a sub-chain is responsible for data caching, a primary chain is responsible for data query, and meanwhile, the IPFS interplanetary file network system is used for storing monitoring data, so that the system capacity is improved, and the problems that the escalator monitoring safety is low, and if the block chain technology is adopted, the information processing efficiency and the capacity expansion capacity are poor are solved integrally.
Drawings
Fig. 1 is a schematic structural diagram of an escalator monitoring network system based on a block chain and an IPFS according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
The technical terms related to the present application are explained as follows:
IPFS, InterPlanet File System, InterPlanetary File System.
Fig. 1 is a schematic structural diagram of an escalator monitoring network system based on a block chain and an IPFS according to an embodiment of the present invention. As shown in fig. 1, the system comprises a plurality of environment sensing monitoring modules, escalator block chain modules, an IPFS interplanetary file subsystem and escalator monitoring modules, wherein the environment sensing monitoring modules correspond to a plurality of escalators to be monitored one by one, the escalator block chain modules are respectively connected with the plurality of environment sensing monitoring modules, the IPFS interplanetary file subsystem and escalator monitoring terminals, the environment sensing monitoring modules are used for monitoring the corresponding escalators to be monitored in real time and uploading corresponding escalator monitoring data at regular intervals, and the regular fingers upload escalator monitoring data according to preset time intervals; preferably, the environment perception module comprises a monitoring camera, a plurality of sensors and a data acquisition box, the monitoring camera acquires image signals, the vibration sensor acquires speed/acceleration signals, the temperature sensor acquires temperature signals, and the noise sensor acquires noise signal lamps. Each sensor carries out real-time state monitoring on key parts of the escalator, for example, a vibration sensor is used for carrying out vibration signal monitoring on a reduction gear box, a noise sensor is used for carrying out noise signal monitoring on a step road of a step, and the like, and a data acquisition box is used for uniformly collecting the acquired data of each sensor and transmitting the data to a sub-chain in a block chain network of the escalator.
The escalator block chain module comprises a sub chain with a plurality of sub blocks and a mother chain with a plurality of mother blocks, the sub chain is used for receiving escalator monitoring data acquired by an environment sensing monitoring module, the escalator monitoring data are periodically transferred to the IPFS interplanetary file subsystem, specifically, from an initial sub block, sensor monitoring data acquired by the environment sensing monitoring module are continuously uploaded to the sub block until the storage capacity of the sub block is used up, the data are continuously stored in the next sub block, and by analogy, all the sub blocks are sequentially linked into the sub chain; each subzone carries out Hash encryption calculation on the collected escalator monitoring data to obtain a Merkle root which is used as a data tag of the data, and as the escalator monitoring data volume is huge, the data processing efficiency becomes lower as the length of the subchain is longer and longer along with the increase of the data; as a preferred mode, when the length of the sub-chain reaches a preset value, the existing data and the data label are uploaded to the IPFS interplanetary file subsystem, and the data on the sub-chain is cleared.
The parent chain is used for storing a data tag corresponding to the storage data of the child block, and the data tag is used for calling the storage data of the child chain or the storage data uploaded to the IPFS interplanetary file subsystem by the child chain to perform query verification; specifically, each subzone block is provided with a corresponding mother zone block, monitoring data and corresponding data labels are stored in the IPFS interplanetary file network system by the subzone blocks, meanwhile, the data labels are stored in the mother zone blocks, the data labels are stored from the initial mother zone block until the capacity of the mother zone block is used up, all the mother zone blocks are sequentially linked into a mother chain after the data labels are sequentially arranged, the volume of the data labels is small, and therefore the capacity consumption of the mother chain is slow, and regular data cleaning is not needed;
the IPFS interplanetary file subsystem is used for storing the uploading data and the data labels of the sub-blocks, receiving the query instruction of the mother chain and analyzing the query instruction to obtain the corresponding data labels, and obtaining the corresponding monitoring data from the stored data by using the corresponding data labels, preferably, the IPFS interplanetary file subsystem comprises a plurality of network nodes and lookup tables which are in one-to-one correspondence with the to-be-monitored escalators, wherein the lookup tables comprise the IDs of the to-be-monitored escalators, the monitoring data of the escalators and the corresponding data labels; and after receiving the query instruction of the parent chain, the IPFS interplanetary file subsystem acquires the corresponding data label by analyzing the query instruction, acquires the corresponding network node through the lookup table, and calls the corresponding escalator monitoring data from the network node by using the corresponding data label.
The IPFS interplanetary file subsystem is a decentralized distributed storage system, which utilizes an addressing mode based on contents rather than addresses to store and search files, uses a point-to-point protocol, provides a high-throughput content addressing storage model, has high uploading and downloading speeds, and ensures the safety performance due to a distributed storage structure; specifically, in the whole monitoring network, each escalator and the monitoring system thereof are IPFS network nodes, and one node only stores all monitoring data of the corresponding escalator. When data needs to be extracted, the IPFS network system captures all lists of the nodes in parallel and splices the lists into complete monitoring data locally, and due to the fact that the parallel speed is far higher than the speed of directly downloading the complete data, the data transmission efficiency can be greatly improved by adopting the mode; each node stores a Hash table besides data, and is used for recording the position of each data storage, so that the data can be conveniently inquired and downloaded; in the IPFS system, each individual data content has been encrypted by a Hash on the child chain to obtain a unique Hash value, and the Hash value changes with a slight change in the data content. Therefore, the IPFS removes redundant repeated data by deleting the data with the repeated Hash value, and improves the utilization rate of the storage space.
The escalator monitoring module is used for acquiring the escalator regular overhaul and maintenance instruction and the escalator regular overhaul and maintenance instruction to generate an inquiry request, and sending the inquiry request to the master chain to acquire required monitoring data. Specifically, the escalator monitoring module comprises an operation management monitoring terminal, a maintenance detection terminal and an escalator monitoring center submodule, wherein the escalator monitoring center submodule is respectively connected with the master chain and the IPFS interplanetary file subsystem. The escalator daily monitoring instruction comprises various parameter information and control information which need to be monitored during the daily operation of the escalator so as to deal with possible sudden accidents; the maintenance detection terminal is used for uploading a regular maintenance instruction of the escalator to the escalator monitoring center sub-module, the regular maintenance instruction of the escalator comprises daily inspection, weekly inspection, monthly inspection plans and the like, and the state of the machine is periodically checked and recorded; the escalator monitoring center submodule is used for generating an inquiry request according to the uploaded escalator regular overhaul and maintenance instruction and the escalator regular overhaul and maintenance instruction, and sending the query request to the parent chain, determining a corresponding data tag according to the query request by the parent chain and forwarding the data tag to the IPFS interplanetary file subsystem or the child chain, checking the IPFS interplanetary file subsystem or the child chain by the tag to find the tag of the parent chain request, extracting corresponding escalator monitoring data and feeding the escalator monitoring data back to the escalator monitoring center sub-module, therefore, the sub-module of the escalator monitoring center can collect all information to be monitored and detected, preferably, factory test data of the escalator can be uploaded to the escalator monitoring center by a manufacturer, the test data of the manufacturer is combined, the state of the escalator is evaluated, and corresponding decisions such as shutdown for overhaul or replacement of a part are further made.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims (10)

1. An escalator monitoring network system based on a block chain and an IPFS (internet protocol file system), which is characterized by comprising a plurality of environment perception monitoring modules, escalator block chain modules, an IPFS interstellar file subsystem and escalator monitoring modules, wherein the environment perception monitoring modules correspond to a plurality of escalators to be monitored one by one;
the escalator block chain module comprises a sub chain with a plurality of sub blocks and a mother chain with a plurality of mother blocks, wherein the sub chain is used for receiving and caching escalator monitoring data acquired by the environment sensing monitoring module and periodically transferring the escalator monitoring data to the IPFS interplanetary file subsystem; the parent chain is used for storing a data tag corresponding to the storage data of the child block, and calling the storage data of the child chain or the storage data uploaded to the IPFS interplanetary file subsystem by using the data tag;
the IPFS interplanetary file subsystem is used for storing the uploading data and the data labels of the sub-blocks, receiving the query instruction of the mother chain, analyzing to obtain the corresponding data labels, and obtaining the corresponding monitoring data from the stored data by using the corresponding data labels;
the escalator monitoring module is used for acquiring the escalator regular overhaul and maintenance instruction and the escalator regular overhaul and maintenance instruction to generate an inquiry request, and sending the inquiry request to the master chain to acquire required monitoring data.
2. The escalator monitoring network system based on a block chain and IPFS as claimed in claim 1, wherein said environment sensing module comprises a monitoring camera for collecting image signals of an escalator to be monitored in real time, a plurality of sensors for collecting monitoring data of escalator components to be monitored, and a data collecting box for collecting collected data uploaded by various sensors and sending the collected data to the escalator block chain module.
3. The escalator monitoring network system based on block chains and IPFS of claim 2, wherein the sensor types comprise one or more of vibration sensors, temperature sensors and noise sensors.
4. The escalator monitoring network system based on the block chain and IPFS as claimed in claim 1, wherein the data processing procedure of the sub-chain comprises:
and continuously uploading the monitoring data of the environment sensing monitoring module to the sub-blocks from the initial sub-block until the storage capacity of the sub-blocks is used up, continuously storing the data into the next sub-block, and so on, and sequentially linking the sub-blocks into the sub-chains.
5. The escalator monitoring network system based on block chain and IPFS according to claim 1, wherein the data processing procedure of said sub-chain further comprises:
and each sub-block carries out Hash encryption calculation on the collected escalator monitoring data to obtain a Merkle root which is used as a data label of the data.
6. The escalator monitoring network system based on the blockchain and the IPFS as claimed in claim 1, wherein when the length of the sub-chain reaches a preset value, the existing data and data labels are uploaded to the IPFS interplanetary file subsystem, and the data on the sub-chain is cleared.
7. The escalator monitoring network system based on the block chain and the IPFS as claimed in claim 1, wherein the IPFS interplanetary file subsystem includes a plurality of network nodes corresponding to the escalators to be monitored one by one and a lookup table, the lookup table includes escalator IDs to be monitored, escalator monitoring data and corresponding data tags, after receiving the uploaded data and the data tags of the sub-blocks, the IPFS interplanetary file subsystem obtains the escalator IDs to be monitored through the data tags, stores the uploaded data and the data tags to the network nodes corresponding to the escalator IDs to be monitored, and updates the lookup table data.
8. The escalator monitoring network system according to claim 7, wherein the IPFS interplanetary file subsystem obtains the corresponding data tag by parsing the query command after receiving the query command of the parent chain, obtains the corresponding network node by using the lookup table, and calls the corresponding escalator monitoring data from the network node by using the corresponding data tag.
9. The escalator monitoring network system based on the block chain and the IPFS according to claim 1, wherein the escalator monitoring module includes an operation management monitoring terminal, a maintenance detection terminal and an escalator monitoring center sub-module, the escalator monitoring center sub-module is respectively connected with the main chain and the IPFS interplanetary file sub-system, the operation management monitoring terminal is used for uploading escalator daily monitoring instructions to the escalator monitoring center sub-module, the maintenance detection terminal is used for uploading escalator periodic maintenance instructions to the escalator monitoring center sub-module, and the escalator monitoring center sub-module is used for generating query requests according to the uploaded escalator periodic maintenance instructions and sending the query requests to the main chain.
10. The escalator monitoring network system based on block chains and IPFS of claim 9, wherein the escalator monitoring center sub-module is further configured to obtain factory test data, and perform status evaluation on the escalator to be monitored according to the factory test data and the monitoring data.
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