CN111311841A - Safety tool cabinet of transformer substation - Google Patents

Abstract

The invention discloses a transformer substation safety tool cabinet which comprises a plurality of tool lattices with cabinet doors, wherein the cabinet doors are provided with electromagnetic locks, the inner wall of each tool lattice is paved with a flaky soft magnetic material, and a radio frequency antenna is arranged in each tool lattice; the RFID touch control system is characterized by further comprising a control box, wherein a controller, an RFID reader-writer and a touch control display are arranged in the control box, and the RFID reader-writer and the touch control display are connected with the controller. Wherein the controller is configured to perform the steps of: carrying out warehousing and warehousing; the warehousing comprises an automatic registration step, an item receiving step and an item returning step. The invention solves the problem of lack of management means of the traditional tools, can effectively improve the management efficiency of safety tools and instruments, reduces the loss rate and damage rate of equipment, and reduces the expenditure cost of tools and instruments; effectively saving the cost of workers in the management of tools, instruments and equipment.

Description

Safety tool cabinet of transformer substation

Technical Field

The invention relates to a transformer substation safety tool cabinet.

Background

The traditional tools and instruments are deficient in management means and mainly completed by manually filling paper materials. The data of the tools and the instruments in and out of the warehouse must be manually completed by team personnel, and the damage condition of the tools and the instruments also needs to be manually checked. The warehouse internal working device has no damage, and whether the quantity is correct or not lacks an effective control means. The tools in the power storehouse are various in types and large in quantity, the regular test time is difficult to accurately control, and the phenomena of overdue non-detection and missing detection occur sometimes. The return of the tool is not in time, and the safety and the operation safety of the power grid equipment are seriously threatened by the phenomena that the tool such as a ground wire is not returned and is not disconnected in an overdue mode.

Along with the rapid increase of national economy, the development speed of a power grid is correspondingly improved, meanwhile, the management area and the management area of a power supply enterprise are increased day by day, the tasks of emergency repair and test are quite heavy, the use times of safety tools are correspondingly increased, the quality of the safety tools directly influences the safety of power production, and the effective standard management of the safety tools is the safety guarantee of field construction of various operating personnel.

The safety production is the most basic requirement of each enterprise including the power enterprise in the production process, the power safety supervision department has direct management responsibility to the safety problem, the safety production of the power enterprise can be better served by managing the safety tools, carrying out unified and refined management on the stored safety tools and standardizing the use flow of the safety tools, so that the safety production of the power enterprise can be effectively guaranteed, and the safety measures and the preventive measures can be established according to the effective measures taken in the operation process.

Disclosure of Invention

The purpose of the invention is as follows: to above-mentioned prior art, provide a transformer substation's safety tool cabinet for solve artifical low efficiency, the numerous and diverse problem of extensive management, unify, the fine-grained management to safety tool.

The technical scheme is as follows: a transformer substation safety tool cabinet comprises a plurality of tool lattices with cabinet doors, wherein the cabinet doors are provided with electromagnetic locks, the inner wall of each tool lattice is paved with a flaky soft magnetic material, and a radio frequency antenna is installed in each tool lattice; the RFID reader-writer and the touch display are connected with the controller; wherein the controller is configured to perform the steps of: carrying out warehousing and warehousing; the warehousing comprises an automatic registration step, an article picking step and an article returning step;

the automatically registering step includes: opening a cabinet door of a corresponding tool grid according to the type of the tool selected by a user, after the tool with the electronic tag is scanned by an RFID reader-writer and then placed into the corresponding tool grid, scanning the electronic tag on the tool by a radio frequency antenna in the corresponding tool grid, judging whether the type of the stored tool is consistent with the type of the opened tool grid, if so, updating a database, otherwise, sending out an inconsistent information prompt;

the step of picking up the article comprises: automatically generating a tool list required by the work content according to the work content required to be developed input by a user, or generating the tool list according to the tool required by the user directly input, then sending a door opening signal to a corresponding electromagnetic lock to sequentially open cabinet doors of a tool grid, judging whether the corresponding tool is successfully taken out or not according to a radio frequency antenna scanning result, and prompting the tool which is not taken out in the tool list on a touch display screen in real time to update a database after all tools are taken out;

the step of returning the item includes: and displaying all the tool lists generated in the step of getting the articles, sending a door opening signal to the corresponding electromagnetic locks according to the tool list selected by the user to sequentially open the cabinet doors of the corresponding tool grids, judging whether the corresponding tools successfully return into the tool grids or not according to the scanning result of the radio frequency antenna, prompting the tools which are not returned in the tool lists on a touch display screen in real time, and updating the database after returning all the tools.

Further, the specific method for judging whether the corresponding tool is successfully taken out of the tool grid or returned into the tool grid according to the scanning result of the radio frequency antenna comprises the following steps: the method comprises the steps of scanning a plurality of times in a cycle in a tool grid through a radio frequency antenna, accumulating the number of times of scanning each label in a unit period, calculating a stable value of the label (the number of times of scanning a certain label in the unit period/the total number of times of scanning in the unit period) multiplied by 100%, comparing the stable value with a preset stable threshold value, judging whether the tool is in the tool grid if the stable value is larger than or equal to the preset stable threshold value, and comparing with a tool list to obtain a result of judging whether the tool is successfully taken out of the tool grid or returned into the tool grid.

Further, the controller is further configured to perform the steps of: when managing an access library, firstly, verifying user authority; the user authority verification comprises the following steps: and comparing the user work card electronic tag information read by the RFID reader with pre-stored information for use, and sending out a prompt of requiring supervisor authorization if the user work card electronic tag information is inconsistent with the pre-stored information for use.

Further, the step of picking up the article further includes a step of modifying a list of tools and instruments required for automatically generating the work content as required.

Further, in the step of returning the item, the preset stable threshold is 60%.

Furthermore, the control box also comprises a communication module connected with the controller, the step of returning the articles also comprises the step of prompting a user to enter the health condition of the corresponding tool on the touch display, and the health condition information of the tool is sent to a manager through the communication module after the return of all the tools is completed.

Further, the controller is further configured to perform the steps of: and managing the tool information in the database, wherein the management comprises adding, modifying and deleting tool names and the belonged classes of the tools, and checking and maintaining the ledger of the safety tools.

Has the advantages that: the invention solves the problem of the lack of management means of the traditional tools and instruments and is mainly completed by manually filling paper materials. The management efficiency of safety tools and instruments and equipment can be effectively improved, the equipment loss rate and the damage rate are reduced, and the expenditure cost of the tools and the instruments and equipment is reduced; effectively saving the cost of workers in the management of tools, instruments and equipment. The quality of tools and appliances is improved, the operation safety is effectively ensured, and the accident rate is reduced; the formation of a safety tool and instrument and equipment normative management system is facilitated.

Drawings

FIG. 1 is a schematic structural diagram of a transformer substation safety tool cabinet;

FIG. 2 is a flow chart of the steps of automatic registration for warehousing;

FIG. 3 is a flow chart of the steps of picking items for warehousing;

fig. 4 is a flow chart of the return item step for inventory management.

Detailed Description

The invention is further explained below with reference to the drawings.

As shown in fig. 1, the transformer substation safety tool cabinet comprises a plurality of tool lattices with cabinet doors, wherein the cabinet doors are provided with electromagnetic locks, the inner wall of each tool lattice is paved with flaky soft magnetic materials, and each tool lattice is provided with a radio frequency antenna. The RFID touch screen display device further comprises a control box, wherein a controller, an RFID reader-writer, a touch display and a communication module are arranged in the control box, and the RFID reader-writer, the touch display and the communication module are connected with the controller. Wherein the electromagnetic lock is the DeVol XG-S190, and the size is 12.5mm multiplied by 80 mm. The RFID reader-writer is HR7758, has 24 antenna ports, is adjustable in power of 0-5W, and supports network ports and serial ports.

According to application requirements, the sizes of the tool lattices are set according to the types of stored tools, in order to ensure that the radio-frequency antenna in each tool lattice can accurately scan the electronic tag attached to the corresponding tool, the carrier frequency of the electronic tag needs to be analyzed and set, and the electronic tag can effectively identify tag information in the corresponding cabinet. The specific method comprises the following steps:

firstly, under the condition that the power of each radio frequency antenna is constant, the distance and the direction of the radio frequency antenna and a label on the tool are continuously adjusted by combining the size of the tool placed in the tool grid and the size of the tool grid, the identification accuracy of each fixed distance and direction is statistically analyzed, and the optimal identification distance and direction of a certain tool grid are found out.

Then, under the condition that the identification distance and the identification direction are fixed, the power of the radio frequency antenna is continuously adjusted, the identification accuracy of the label on the tool is statistically analyzed under each power, and the optimal identification power corresponding to the tool grid is found.

Finally, under the condition that the identification distance, the direction and the power are fixed, the scanning times per second and the accuracy threshold of the radio frequency antenna are adjusted, namely the number of times that the label is scanned correctly/the number of times that the label is scanned per second, in the scanning action per second, the result that the label identification rate is higher than the threshold is determined to be scanned, and the optimal scanning times per second and the accuracy threshold which enable the label in the tool grid to be identified correctly are found.

The RFID electronic tag excites an induced alternating electromagnetic field under the action of a signal sent by a card reader, so that the signal intensity is greatly weakened due to the eddy current attenuation action of metal, and the reading process fails. For solving the jam-proof problem, paste slice soft magnetic material around the cupboard inner wall, eliminate the reflection of making a round trip of electromagnetic wave in the shielding cavity, reduce the clutter to the interference of self equipment, thickness commonly used includes: 0.08mm, 0.1mm, 0.2mm, 0.3 mm. Through the design, most of the RFID electronic tag card can absorb electromagnetic waves, the interference of the electromagnetic waves to components is reduced, the electromagnetic coupling between the electronic components can be reduced and inhibited, the RFID electronic tag card can be normally used in the environment of metal and electromagnetic interference, and the effects of isolating and absorbing the electromagnetic wave interference are achieved.

The controller is configured to perform the steps of: tool and instrument information management, team personnel information management, parameter management and access management.

Tool information management:

the operations of adding, modifying, deleting and the like of the tool information can be realized through tool information management. And the checking and maintenance operation of the general ledger of the safety tool can maintain the file information of the tool, including: the name of the tool, the class (class I) of the tool, the class (class II) of the tool, the range of use, the special description, and the like. After the information of the tool is recorded, the association between the tool and the electronic tag of the tool can be established through the operation of writing the electronic tag, so that the storage and the fetching operation of the equipment are facilitated.

Managing staff information of teams and groups:

after the user information is registered and input, the user can be written with the electronic tag employee card, the one-to-one matching of the user and the employee card is completed, and the team member can complete the authority verification work by swiping the employee card conveniently.

Parameter management:

the tools can be classified into: the safety warning system comprises five major categories of insulation safety tools, climbing safety tools, personal safety protection tools, safety fences (safety nets) and safety nameplates, wherein the lower surface of each major category of the tools is divided into a plurality of tool name subclasses, and the tool name subclasses are shown in table 1.

TABLE 1

The warehousing comprises an automatic registration step, an item receiving step and an item returning step.

The automatic registration step includes:

and after the working personnel swipe the working card on the RFID reader-writer for login verification, performing registration and warehousing management, opening a corresponding cabinet door according to the selected category, fixing the electronic tag on the tool, and scanning on the RFID reader-writer to complete the registration work.

Each label has a unique label number, the basic information of the tool corresponding to the label is recorded in an operation interface during registration, and the label number and the basic information of the tool, including logic numbers, states, cabinet door information and the like, are stored in a database by the system. The electronic label, the label number and the basic information of the tool establish unique association.

As shown in fig. 2, the specific process includes:

(1) swiping a working card in the identity identification area;

(2) selecting "check in";

(2) if the working card is not swiped in the first step, the terminal prompts to swipe the working card;

(3) selecting a stored article classification;

(4) opening the corresponding cabinet door to prompt the user to put articles in;

(5) judging whether the type of the placed article corresponds to the cabinet body or not, and sending an information prompt if the type of the placed article does not correspond to the cabinet body;

(7) and closing the cabinet door to prompt success information and updating the database.

The step of getting the article comprises:

when a user receives the tools, after the user can swipe cards on the RFID reader-writer to verify, after the type of the article is selected through receiving on an operation page, if the user judges that the article is an internal worker, the system automatically opens a cabinet door for storing corresponding equipment, if the article is an external worker, the user needs to be in charge of authorization to open the cabinet door, then the user directly receives the corresponding tools from the specified cabinet door, and then the user closes the door to finish the tools to receive the tools and take out the tools.

As shown in fig. 3, the specific process is as follows:

a user enters a tool room after passing the access control authority examination, and the user swipes a card to log in a safety tool cabinet of the transformer substation; the system judges whether the user has the access authority, and if the user does not have the access authority, the system can only provide other authorities; if the system has the access authority, the user can select the following two operations, wherein one operation is to input the work content required to be developed for the user, then the system automatically generates a tool list, and then the user can revise the list, finally confirm the list and generate a list number; and the other method is that the user directly inputs the tool needed to be taken, then confirms the list and generates a list number. After the list number is generated, the system opens a first cabinet door according to the list, a user can take and use tools, the system judges whether the tools are taken out successfully or not through induction of the radio frequency antenna in the grid, and then the cabinet door is closed; the system judges whether to take and finishes, if not take and finish, the suggestion is still how much not to take to open next cabinet door according to the list is automatic, then the user can take the multiplexer utensil, closes the cabinet door behind the system record, and the system still can judge whether to take and finish this moment, if not take and finish then carry out preceding circulation, judge for taking and finish until the system, the suggestion is accomplished and is taken, and the user leaves after the host computer of multiplexer utensil management and control station end clicks and confirms at last.

The step of returning the article comprises:

as shown in fig. 4, a user enters a tool room after passing the access control authority examination, and logs in a safety tool cabinet of a transformer substation; the system prompts a selectable returning list according to user information, the user selects the list needing to be returned, the system opens a first cabinet door according to the list, the user returns the tools, a radio frequency antenna in the grid judges whether the corresponding tools are successfully returned into the tool grid according to a scanning result, and then the cabinet door is closed; the system judges whether returning is finished or not, if not, prompts how many the tools are not returned, automatically opens the next cabinet door according to the list, the user returns the tools, the system closes the cabinet door after recording, at the moment, the system also judges whether returning is finished or not, if not, the system performs the previous circulation until the system judges that returning is finished, prompts that returning is finished, and finally the user leaves after clicking and confirming the tool management and control station host.

When the tool is found to be damaged in the use process of the tool, the health condition of the tool is recorded on a display screen of a tool cabinet when the tool is returned, and after a cabinet door is closed, the system automatically pushes the tool information to a management system through a communication module and reports management personnel.

In the process, the specific method for judging whether the corresponding tool is successfully taken out of the tool grid or returned into the tool grid according to the scanning result of the radio frequency antenna comprises the following steps:

defining the probability of a certain label being scanned in the scanning results of a certain number of times as a stable value of the label, namely:

the stable value of the tag (the number of times a certain tag is scanned in a unit period/the total number of times scanned in a unit period) x 100%. It can be seen that a higher stability indicates that the tag is more easily identified during multiple scans, i.e., a higher probability of being in the cabinet, and a lower stability indicates that the tag is not easily identified. In practical application, the stability parameter is set to be 60% of the system stability according to the statistical results of multiple tests. When the cabinet door is opened, the scanning antenna starts to work, and the scanning is circulated for multiple times before the cabinet door is closed, and the scanning frequency can be set in a configuration file, for example, 10 times per second. The scan results within 1 second were subjected to cumulative analysis:

(1) accumulating the scanning times of each label in 1 second to obtain the scanning times of each label in one second;

(2) calculating the stability value of each label in 1 second;

(3) comparing the stability value of each tag with a stability threshold value of 60% set in advance;

(4) the label with the stability value being greater than or equal to the stability threshold value is judged to be in the cabinet, and the rest is judged to be taken out;

(5) and comparing the label of the tool required to be taken by the cabinet door in the list with the judgment result of the radio frequency antenna scanning, and if the label in the judgment result is in the list, judging that the label is correctly taken.

(6) And similarly, comparing the label judged to be in the cabinet with the label in the list to be returned, and if the scanning result judges that the label in the cabinet is consistent with the label in the list to be returned, judging that the label is correctly returned.

The installation and deployment are carried out according to the specific situation of the site, and the tool cabinet adopts a pulley mode, so that the flexible deployment can be realized. The system can be deployed in a tool room and an appliance room and can also be deployed in a proper area outside a main control room of a transformer substation. The RFID reader-writer of the transformer substation safety tool cabinet can receive the identity card contacted by a user to carry out identity verification and login. After the user swipes the card and passes the identity authentication, a display screen on the surface of the control box displays related identity information and an application menu, and equipment can be selected for inputting, receiving and returning. The radio frequency antenna in the cabinet lattice can collect the equipment label information put into the cabinet lattice, and the label information is hooked with various index information of the equipment and enters a terminal application module for unified management.

The invention can effectively improve the management efficiency of safety tools and instruments, reduce the loss rate and damage rate of the equipment and reduce the expenditure cost of the tools and instruments; effectively saving the cost of workers in the management of tools, instruments and equipment. The quality of tools and appliances is improved, the operation safety is effectively ensured, and the accident rate is reduced; the formation of a safety tool and instrument and equipment normative management system is facilitated.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (7)

1. The utility model provides a transformer substation's safety tool cabinet which characterized in that: the cabinet door is provided with an electromagnetic lock, the inner wall of each tool grid is paved with a flaky soft magnetic material, and a radio frequency antenna is installed in each tool grid; the RFID reader-writer and the touch display are connected with the controller; wherein the controller is configured to perform the steps of: carrying out warehousing and warehousing; the warehousing comprises an automatic registration step, an article picking step and an article returning step;

the automatically registering step includes: opening a cabinet door of a corresponding tool grid according to the type of the tool selected by a user, after the tool with the electronic tag is scanned by an RFID reader-writer and then placed into the corresponding tool grid, scanning the electronic tag on the tool by a radio frequency antenna in the corresponding tool grid, judging whether the type of the stored tool is consistent with the type of the opened tool grid, if so, updating a database, otherwise, sending out an inconsistent information prompt;

the step of picking up the article comprises: automatically generating a tool list required by the work content according to the work content required to be developed input by a user, or generating the tool list according to the tool required by the user directly input, then sending a door opening signal to a corresponding electromagnetic lock to sequentially open cabinet doors of a tool grid, judging whether the corresponding tool is successfully taken out or not according to a radio frequency antenna scanning result, and prompting the tool which is not taken out in the tool list on a touch display screen in real time to update a database after all tools are taken out;

the step of returning the item includes: and displaying all the tool lists generated in the step of getting the articles, sending a door opening signal to the corresponding electromagnetic locks according to the tool list selected by the user to sequentially open the cabinet doors of the corresponding tool grids, judging whether the corresponding tools successfully return into the tool grids or not according to the scanning result of the radio frequency antenna, prompting the tools which are not returned in the tool lists on a touch display screen in real time, and updating the database after returning all the tools.

2. A substation safety tool cabinet according to claim 1, characterized in that: the specific method for judging whether the corresponding tool is successfully taken out of the tool grid or returned into the tool grid or not through the scanning result of the radio frequency antenna comprises the following steps: the method comprises the steps of scanning a plurality of times in a cycle in a tool grid through a radio frequency antenna, accumulating the number of times of scanning each label in a unit period, calculating a stable value of the label (the number of times of scanning a certain label in the unit period/the total number of times of scanning in the unit period) multiplied by 100%, comparing the stable value with a preset stable threshold value, judging whether the tool is in the tool grid if the stable value is larger than or equal to the preset stable threshold value, and comparing with a tool list to obtain a result of judging whether the tool is successfully taken out of the tool grid or returned into the tool grid.

3. A substation safety tool cabinet according to claim 1 or 2, characterized in that: the controller is further configured to perform the steps of: when managing an access library, firstly, verifying user authority; the user authority verification comprises the following steps: and comparing the user work card electronic tag information read by the RFID reader with pre-stored information for use, and sending out a prompt of requiring supervisor authorization if the user work card electronic tag information is inconsistent with the pre-stored information for use.

4. A substation safety tool cabinet according to claim 1 or 2, characterized in that: and in the step of getting the articles, the step of modifying the instrument list required by automatically generating the work content according to the requirement is further included.

5. A substation safety tool cabinet according to claim 1 or 2, characterized in that: in the step of returning the article, the preset stable threshold value is 60%.

6. A substation safety tool cabinet according to claim 1 or 2, characterized in that: the control box further comprises a communication module connected with the controller, the step of returning the articles further comprises the step of prompting a user to enter the health condition of the corresponding tool on the touch display, and the health condition information of the tool is sent to a manager through the communication module after the return of all the tools is completed.

7. A substation safety tool cabinet according to claim 1 or 2, characterized in that: the controller is further configured to perform the steps of: and managing the tool information in the database, wherein the management comprises adding, modifying and deleting tool names and the belonged classes of the tools, and checking and maintaining the ledger of the safety tools.

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