Signboard identification method and device and self-adaptive switching signboard

Abstract

The invention discloses a signboard identification method and device, and a self-adaptive switching signboard, and relates to the technical field of electric power operation assistive devices, and the method comprises the steps: obtaining the work interval time through obtaining the work ticket information of the day, analyzing the safety measure content in a work ticket, further determining the type of the signboard and the number of the signboards, and carrying out the recognition of the signboard. Displaying security identification information and display switching according to the types and the number of the signboards; the problems of low work ticket information identification efficiency, low nameplate selection efficiency and low substation maintenance efficiency caused by the lack of display information generation according to the work ticket and difficulty in considering the complex identification type of the work ticket in the conventional nameplate are solved. By analyzing the work ticket information to obtain the signboard configuration information and the signboard self-switching identification display, the signboard safety identification display efficiency is improved, the signboard input number is reduced, the signboard adaptability is further improved, and the substation maintenance efficiency is remarkably improved.

Description

Technical Field

[0001] The present invention relates to the technical field of power operation auxiliary tools, and in particular to a sign recognition method and device, and adaptively switches signboards. Background Art

[0002] With the development of power grid, the number of substations is increasing. It is particularly important to shorten the maintenance time of substations and improve the efficiency of maintenance work. When the substation is under maintenance, the operating personnel need to take safety measures, which involves hanging many safety signs. When preparing safety signs according to the safety measures of the work ticket, the operating personnel often take a long time to prepare, take too few signs, or take the wrong signs because of the large number of safety measures, large number of intervals, and many types of signs. This leads to a long time for the work ticket to be approved, thus affecting the maintenance work. There is an urgent need for a method that can quickly identify the work ticket, automatically screen out the types and quantities of the required safety signs, and shorten the preparation time.

[0003] Chinese patent, publication number: CN112256872B, publication date: June 6, 2023, discloses a method and system for intelligent invoicing of substation maintenance work tickets; the work task information is obtained through the work task input module, and the work interval can be determined in the work interval determination module by manual determination and intelligent determination. Subsequently, the work ticket intelligent invoicing system intelligently performs equipment status identification, dangerous point analysis, and safety measures layout according to the characteristics and features of the work interval, and outputs the circuit breaker and disconnector that should be pulled open in the corresponding work ticket, the grounding wire should be hung or the grounding knife switch should be closed, the barriers should be set and the signs should be hung, and the measures to prevent the secondary circuit from accidentally touching the secondary circuit. After being checked by the manual proofreading module, the system can intelligently output the corresponding maintenance work ticket according to the standard format of the first type of substation or the second type of substation work ticket. However, this invention is mainly based on the issuance of work tickets for substation work tasks. Although it mentions hanging signs, it does not mention how to associate the work ticket with the sign and how the sign works.

[0004] Chinese patent, publication number: CN115482718A, publication date: December 16, 2022, discloses a work ticket sign, including: a base plate, the base plate includes a display part and a working part, the display part is used to display the status of the sign, and the current working status of the work area is displayed by the status of the sign; a pendant, whose two ends are respectively installed on the upper end of the base plate, used to hang the base plate in the area to be displayed; a plurality of card slots, which are installed in the working part of the base plate, for placing work signs. It solves the problem of low efficiency and easy to fall off when sticking work tickets or red cloth curtains. However, this solution only uses red, yellow, green and blue to indicate the risk level, and the display area requires manual operation. It cannot cope with the display of multiple types and quantities of safety signs, and has poor applicability and low efficiency. Summary of the invention

[0005] The purpose of the present invention is to address the problem that conventional signs lack efficient acquisition of display information and are difficult to take into account complex identification types of work tickets, resulting in low substation maintenance efficiency; a sign recognition method and device are proposed to adaptively switch signboards; by obtaining the work ticket information of the day, the safety measures content in the work ticket is analyzed to obtain the work interval time, and the sign type and the number of signboards are further determined, and the safety identification information and display switching are displayed according to the sign type and number; the problem that conventional signs lack the display information generated according to the work ticket and are difficult to take into account the complex identification types of the work ticket, resulting in low work ticket information recognition efficiency, low sign selection efficiency, and thus low substation maintenance efficiency is overcome, by analyzing the work ticket information to obtain the sign configuration information and the sign automatically switching the identification display, the safety identification display efficiency of the sign is improved, the number of signboards invested is reduced, the adaptability of the sign is further improved, and the substation maintenance efficiency is significantly improved.

[0006] To solve the above technical problem, according to a first aspect of an embodiment of the present invention, a method for identifying a sign is provided, comprising the following steps: S1. Obtain all work ticket information of the day from the power grid intelligent operation and inspection platform, analyze the safety measures in the work ticket, and obtain work interval information; S2. Determine configuration information of the signboard according to the working interval information, wherein the configuration information at least includes the type of the signboard and the number of the signboard; S3. Execute display and switching actions of corresponding safety signs according to the sign type and the number of sign boards.

[0007] In this solution, by acquiring and analyzing the work ticket information of the day, the safety measures information in the work tasks of the day can be quickly acquired, so as to quickly obtain the signboard identification requirements and configure the signboard requirements, thereby improving the work ticket permission time; by determining the signboard configuration information, that is, determining the signboard type and the number of signboards, an accurate data source is provided for the display and switching actions of the signboards, ensuring that the type and quantity of signs meet actual needs; according to the type and quantity of the signboards, the display and switching actions of the corresponding safety signs are executed to realize the intelligent display and switching of the signs, which solves the problems of complex safety measures at the start of the work ticket, the time-consuming preparation of safety signs by the operating personnel, and the lack of or wrong safety signs, shortens the start time of the work ticket, effectively improves the work permit efficiency of the operating personnel, and also ensures the normal execution of the work ticket.

[0008] Preferably, in S1, calculating the working interval information based on the safety measures information in the work ticket includes: Extract the work ticket safety measures to be executed based on the work ticket information; Scan the safety measures content of the work ticket according to the safety identification type to obtain the identification type in the work ticket; Slice the safety measures content of the work ticket according to the text identifier to obtain a slice statement; The number of the slicing statements is counted and used as the number of working intervals of the marked type to complete the acquisition of the working interval information.

[0009] Preferably, scanning the security measures content of the work ticket according to the standard identification type to obtain the identification type in the work ticket includes: Establishing a keyword library based on various types of safety identification, and scanning the safety measures content of the work ticket line by line or section by section; When the identification keyword in the identification keyword library is matched, the corresponding safety identification type is recorded, and the scanning is completed and the recording result is output to obtain all the identification types in the safety measures content of the work ticket.

[0010] Preferably, scanning the work ticket security measures content according to the standard identification type also includes: marking the identification type obtained for the first time by scanning the work ticket security measures content with a serial number, and initializing the number of the identification types.

[0011] Preferably, S2 comprises the following sub-steps: Based on the statistics of the number of working intervals of the marking type, a counting program is synchronously used to count the number of the marking type, and when the statistics of the number of working intervals are completed, the counting program outputs the total number of the marking type; The sign type is used as the signboard type, and the total number of the signtype is used as the number of signboards of the corresponding signboard type, so as to obtain configuration information of the signboard.

[0012] According to a second aspect of an embodiment of the present invention, there is provided a sign recognition device, comprising: The work ticket import module is used to import the work ticket information of the power grid intelligent operation and inspection platform, and filter out the work ticket information of the day according to the date or timestamp of the work ticket; The work ticket information recognition module is used to analyze the safety measures in the work ticket and obtain the work interval information; A signboard information generation module, used to determine the configuration information of the signboard according to the working interval information; The signboard activation module is used to execute the display and switching actions of the corresponding safety signs according to the signboard type and the number of signboards.

[0013] In this scheme, by filtering the work ticket information of the day according to the date or timestamp of the work ticket, it is ensured that the obtained work ticket information meets the target date, so as to quickly obtain the safety measures information in the work task of the day, and then quickly obtain the signboard identification requirements to configure the signboard requirements, thereby improving the work ticket permission time; by determining the signboard configuration information, an accurate data source is provided for the display and switching actions of the signboard, ensuring that the type and quantity of the signboard meet the actual needs; according to the type and quantity of the signboard, the display and switching actions of the corresponding safety signs are executed to realize the intelligent display and switching of the signboard. The switching function enables the safety signs to be dynamically adjusted as the work progresses, and can respond to different safety requirements in different work stages in a timely manner, always providing the substation site with effective safety warnings that fit the actual situation, and further improving the flexibility and adaptability of the safety management of the entire substation; it solves the problem that the operating personnel take a long time to prepare safety signs and take fewer or wrong safety signs due to the complexity of safety measures when the work ticket starts, shortens the start time of the work ticket, effectively improves the work permit efficiency of the operating personnel, and also ensures the normal execution of the work ticket.

[0014] According to a third aspect of an embodiment of the present invention, there is provided an adaptive switching sign, which is applied to the sign recognition device, and includes: An electronic display module, at least used to connect to the sign recognition device, obtain sign configuration information, display safety signs and safety sign type light warnings; The power supply module is used to configure the battery capacity based on the required load to supply energy to the electronic display module.

[0015] Preferably, the electronic display module at least includes an LED electronic display screen and a USB interface for transmitting data to the LED electronic display screen; The LED electronic display screen is used to display various types of safety signs and to switch the display according to different types of safety signs, including LED lights for light warning according to different types of safety signs; The USB interface is used to connect the nameplate start module of the nameplate recognition device to obtain the nameplate type and the number of nameplates to control the operation of the LED electronic display screen.

[0016] Preferably, the power supply module comprises at least a solar cell array, a controller, a light intensity sensor, a lithium battery and an LED array; The solar cell array is used to convert light energy into current in the power supply circuit to charge the lithium battery; The controller is used to calculate the required load of the electronic display module according to the working time of the signboard, so as to configure the battery capacity and control the start and stop of the solar cell array; wherein: when the light intensity value detected by the light intensity sensor reaches a set threshold, the controller connects the charging circuit and the solar cell array starts charging; when the light intensity value detected by the light intensity sensor is lower than the set threshold, the controller cuts off the charging circuit and the solar cell array stops charging; The light intensity sensor is used to drive the controller; The storage battery is used to store the electric energy generated by the solar cell array and to supply power to the LED array when the LED electronic display screen is working.

[0017] Preferably, the adaptive switching sign further comprises: a sign fixing module; the sign fixing module at least comprises a hook connected to the LED electronic display screen, and a fixing magnet fixing the LED electronic display screen on the surface of the adaptive switching sign.

[0018] In this solution, the LED electronic display screen is used to update the display content in real time to ensure that the displayed safety identification information is always consistent with the actual working conditions of the current substation, so that the staff can obtain the most accurate safety tips in the first time, reduce the safety risks caused by information lag or errors, and improve the overall safety level of the substation; through the USB interface sign recognition device, the sign is no longer limited to fixed and single prompt information, but can dynamically display corresponding accurate safety tips, warnings or instructions according to different working scenes, different working intervals and real-time working status of the substation, etc., to meet the complex and changeable substation safety management needs. The power supply module converts light energy into electrical energy and stores it in the lithium battery, realizing the effective use of clean energy, reducing dependence on traditional city electricity, and saving energy and environmental protection. The entire sign can automatically display and switch the identification content according to the substation work ticket information and the actual work progress, reducing the links of manual intervention and the probability of human errors, and gradually promoting safety management from traditional manual operation to automation and intelligence, which is conducive to improving the overall safety management efficiency and quality of the substation.

[0019] Beneficial effects of the present invention: 1. Use text identifiers to slice the safety measures content and divide the overall content into relatively independent slice statements, so as to convert the abstract text description into quantifiable work interval data, which is convenient for the subsequent accurate configuration of the corresponding number of signboards; 2. Execute the display and switching actions of the corresponding safety signs according to the type and number of signboards, realize the intelligent display and switching of signboards, and have the switching function so that the safety signs can be dynamically adjusted as the work progresses, and can promptly respond to different safety requirements at different work stages, and always provide effective safety warnings that fit the actual situation for the substation site; 3. Through adaptive switching of signboards, automatic adaptation and flexible switching in multiple aspects, from sign content display, power supply guarantee to installation and fixation, are realized, fully meeting the complex and changeable safety sign requirements of substations. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings. The drawings are only for the purpose of illustrating preferred embodiments and are not to be considered as limiting the present invention. Also, the same reference symbols are used throughout the drawings to represent the same parts.

[0021] Figure 1 The figure is a flow chart of a sign recognition method according to an embodiment of the present invention.

[0022] Figure 2 The present invention is a flowchart of work ticket information recognition according to an embodiment of the present invention.

[0023] Figure 3 This is a schematic diagram of the analysis results of the nameplate required for a work ticket in an embodiment of the present invention.

[0024] Figure 4 This is a module diagram of a sign recognition device according to an embodiment of the present invention.

[0025] Figure 5 A schematic diagram of safety measures information for a work permit according to an embodiment of the present invention.

[0026] Figure 6 A schematic diagram of an adaptive switching sign module according to an embodiment of the present invention.

[0027] Figure 7 The present invention is a schematic diagram of an adaptive switching sign structure design according to an embodiment of the present invention.

[0028] Figure 8 The figure is a schematic diagram of a sign identification type according to an embodiment of the present invention.

[0029] Fig. 9 The figure is a block diagram of a signboard power supply system according to an embodiment of the present invention. DETAILED DESCRIPTION

[0030] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific implementation method described herein is only an optimal embodiment of the present invention, which is only used to explain the present invention and does not limit the scope of protection of the present invention. All other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0031] Example 1: Figure 1 As shown, a sign recognition method includes steps S1-S3, wherein: S1. Obtain all work ticket information of the day on the power grid intelligent operation and maintenance platform, analyze the safety measures in the work ticket, and obtain work interval information.

[0032] Specifically, in S1, the working interval information is calculated based on the safety measures information in the work ticket, including: Extract the work ticket safety measures to be executed based on the work ticket information; Scan the safety measures content of the work ticket according to the safety identification type to obtain the identification type in the work ticket; Slice the safety measures content of the work ticket according to the text identifier to obtain a slice statement; The number of the slicing statements is counted and used as the number of working intervals of the marked type to complete the acquisition of the working interval information.

[0033] Specifically, scanning the security measures content of the work ticket according to the standard identification type to obtain the identification type in the work ticket includes: Establishing a keyword library based on various types of safety identification, and scanning the safety measures content of the work ticket line by line or section by section; When the identification keyword in the identification keyword library is matched, the corresponding safety identification type is recorded, and the scanning is completed and the recording result is output to obtain all the identification types in the safety measures content of the work ticket.

[0034] In this embodiment, the extracted safety measures content is scanned line by line or paragraph by paragraph through a pre-established identification keyword library (covering typical words related to various types of safety signs). As long as the identification keyword in the keyword library is matched, the corresponding safety sign type is recorded. This can systematically sort out all different types of safety signs involved in the safety measures content of the work ticket, and provide basic classification information for further analysis of work intervals and other information; the safety measures content is sliced ​​using text identifiers, and the overall content is divided into relatively independent slice statements, and the number of these slice statements is counted as the number of work intervals corresponding to the marking type, so as to convert the abstract text description into quantifiable work interval data, which is convenient for the subsequent accurate configuration of the corresponding number of signboards.

[0035] The scanning method based on the keyword library can identify different types of safety signs in a relatively standardized and normalized process, reduce the subjectivity and uncertainty of manual judgment, and ensure the accuracy and comprehensiveness of the judgment of the safety sign type. No matter how the specific expression of the work ticket changes, as long as it contains words in the keyword library, it can be accurately identified. At the same time, the text content is converted into a countable number of sliced ​​sentences to represent the number of working intervals, which provides a specific quantitative basis for the subsequent reasonable configuration of signboards, helps to accurately arrange safety signs according to actual working conditions, and ensures that each working interval of the substation has appropriate and sufficient safety reminders.

[0036] Specifically, scanning the work ticket security measures content according to the standard identification type also includes: marking the identification type obtained for the first time by scanning the work ticket security measures content with a serial number, and initializing the number of the identification types.

[0037] In this embodiment, content closely related to safety measures is extracted from a large amount of work ticket information to avoid interference from irrelevant information, so that subsequent analysis can be carried out accurately around key information to ensure the safety of substation work, thereby improving the pertinence of the entire process.

[0038] S2. Determine configuration information of the signboard according to the working interval information, wherein the configuration information at least includes the type of signboard and the number of signboards.

[0039] Specifically, S2 includes the following sub-steps: Based on the statistics of the number of working intervals of the marking type, a counting program is synchronously used to count the number of the marking type, and when the statistics of the number of working intervals are completed, the counting program outputs the total number of the marking type; The sign type is used as the signboard type, and the total number of the signtype is used as the number of signboards of the corresponding signboard type, so as to obtain configuration information of the signboard.

[0040] In this embodiment, the previously determined sign type is directly used as the sign type, and the total number of the sign types obtained by statistics is used as the number of signs of the corresponding sign type, thereby clarifying the configuration information of the sign. In this way, it is clear which types of signs need to be configured and the specific number of each type, providing a clear operating guide for subsequent actual safety sign display and switching actions.

[0041] Through the synchronous statistical mechanism, the tedious process of repeatedly analyzing the text is avoided, and the existing working interval number statistical process is fully utilized to efficiently obtain the two core data required for the signboard configuration, saving data processing time and computing resources. The statistical results are directly converted into the configuration information of the signboard, so that the subsequent signboard display and switching actions can have an accurate and detailed basis, ensuring that the corresponding safety signs can be accurately set according to the actual work needs at the substation site, which helps to maintain the safety and order of the substation working environment and avoid safety hazards caused by improper signboard configuration.

[0042] S3. Execute display and switching actions of corresponding safety signs according to the sign type and the number of sign boards.

[0043] As an implementation method, Figure 2 As shown in the figure, the intelligent analysis of work ticket content includes four steps: initialization and safety measures identification, work interval identification and sign number calculation, and loop and output, as follows: Step 1: Initialization and safety measures identification. According to the imported work ticket, initialize the numbers corresponding to various marking types to s1=0, s2=0, ..., s7=0, and find the small item "Should set up barriers, should hang signs and prevent secondary circuits from accidentally touching" under the safety measures column. The safety measures are listed according to the serial numbers 1 to n, and the content of each serial number is analyzed in step 2; Step 2: Work interval identification. Using the slicing method, count the commas in the text. The final number of work intervals is the number of sentences after slicing, that is, each sentence represents a work interval; Step 3: Calculate the number of signboards. Since the safety measures will specify the specific types of signboards, such as "Working Here", "Do Not Close the Switch, Someone is Working", etc., it is necessary to match the signboard types written in the safety measures with the given identification types, and then perform statistical counting. For example, if the identification type is x, then sx = sx + m, so as to generate the type and number of signboards, such as Figure 3 shown.

[0044] Step 4: Loop and output. Follow this process to loop i from 1 to n, and finally output the result to the adaptive switching sign for display.

[0045] Embodiment 2, as Figure 4 As shown, a sign recognition device comprises: The work ticket import module is used to import the work ticket information of the power grid intelligent operation and inspection platform, and filter out the work ticket information of the day according to the date or timestamp of the work ticket; The work ticket information recognition module is used to analyze the safety measures in the work ticket and obtain the work interval information; A signboard information generation module, used to determine the configuration information of the signboard according to the working interval information; The signboard activation module is used to execute the display and switching actions of the corresponding safety signs according to the signboard type and the number of signboards.

[0046] In this embodiment, the work ticket information of the day is filtered according to the date or time stamp of the work ticket to ensure that the acquired work ticket information meets the target date, so as to quickly obtain the safety measures information in the work task of the day (such as Figure 5 As shown), the signboard identification requirements can be quickly obtained to configure the signboard requirements and improve the work ticket permission time; by determining the signboard configuration information, an accurate data source is provided for the display and switching actions of the signboard to ensure that the type and quantity of the signboard meet the actual needs; according to the determined signboard type and quantity, the corresponding safety sign display operation is performed, and the switch is performed in time according to the changes in the working status and other situations. For example, when the work of a certain work interval is completed, the corresponding "Working Here" and other signs may need to be switched to prompt signs such as "Completed" to ensure that the safety signs can always accurately reflect the actual situation of the on-site work. According to the type and quantity of the signboard, the display and switching actions of the corresponding safety signs are performed to realize the intelligent display and switching of the signboard. The switching function allows the safety signs to be dynamically adjusted as the work progresses, and can respond to different safety needs in different work stages in a timely manner, always providing the substation site with effective safety warnings that fit the actual situation, and further improve the flexibility and adaptability of the safety management of the entire substation.

[0047] Embodiment 3, as Figure 6 As shown, an adaptive switching sign, applied to the sign recognition device, comprises: an electronic display module, at least used to connect to the sign recognition device, obtain sign configuration information, display safety signs and safety sign type light warning; The power supply module is used to configure the battery capacity based on the required load to supply energy to the electronic display module.

[0048] Specifically, the electronic display module at least includes an LED electronic display screen and a USB interface for transmitting data to the LED electronic display screen; The LED electronic display screen is used to display various types of safety signs and to switch the display according to different types of safety signs, including LED lights for light warning according to different types of safety signs; The USB interface is used to connect the nameplate start module of the nameplate recognition device to obtain the nameplate type and the number of nameplates to control the operation of the LED electronic display screen.

[0049] Specifically, the power supply module includes at least a solar cell array, a controller, a light intensity sensor, a lithium battery and an LED array; The solar cell array is used to convert light energy into current in the power supply circuit to charge the lithium battery; The controller is used to calculate the required load of the electronic display module according to the working time of the signboard, so as to configure the battery capacity and control the start and stop of the solar cell array; wherein: when the light intensity value detected by the light intensity sensor reaches a set threshold, the controller connects the charging circuit and the solar cell array starts charging; when the light intensity value detected by the light intensity sensor is lower than the set threshold, the controller cuts off the charging circuit and the solar cell array stops charging; The light intensity sensor is used to drive the controller; The storage battery is used to store the electric energy generated by the solar cell array and to supply power to the LED array when the LED electronic display screen is working.

[0050] Specifically, the adaptive switching sign also includes: a sign fixing module; the sign fixing module at least includes a hook connected to the LED electronic display screen, and a fixing magnet that fixes the LED electronic display screen on the surface of the adaptive switching sign.

[0051] As a specific implementation method, Figure 7 As shown, the sign is made of a 250mm×250mm solar LED sign, which mainly includes an electronic display module, a power supply module, and a magnetic and hook fixing module. The main component of the electronic display module is the LED electronic display screen, which is provided with a USB connection socket for data connection and transmission of the LED electronic display screen. The power supply module includes a battery, a photovoltaic panel and a power switch. The photovoltaic panel can charge the battery during the day, and the charging port can be used to charge when the light is insufficient. The battery powers the LED light during normal work. The magnetic and hook fixing module includes the hook and magnet of a conventional sign, which is used for hanging during daily work.

[0052] Among them, the identification type of the adaptive switching sign can be set according to the commonly used signboards in the actual substation. In this embodiment, 7 identification types are included (such as Figure 8The LED display can be set to switch between 7 sign types by connecting a sign recognition device.

[0053] Furthermore, if Fig. 9 As shown, the power supply module integrates an independent power supply system, which consists of a solar cell array, a controller, a light intensity sensor, a lithium battery, and an LED array. When there is sufficient sunlight during the day, the light intensity sensor drives the controller to start the solar cell array, converting light energy into current in the circuit to charge the lithium battery. When there is insufficient light at night, the controller cuts off the charging circuit and stops charging. When using the LED sign at work, close the switch, and the battery will power the LED array to make it emit light, thereby playing the role of display and lighting.

[0054] The LED sign is controlled by an independent circuit, with 8 lines of LED flashing intermittently, the working current is 100mA, and the battery voltage is 12V. If the average working time of the adaptive switching sign is 4 hours per day, the system load can be expressed by the following formula: Q=I·t·n=0.1·8·4=3.2A·h The method to calculate the capacity of solar panels is as follows: If the average sunshine index is 2500-2900h per year, the annual average sunshine rate is 60%, and the total radiation per year is 530kJ / cm 2 In a year, the sunshine index in winter is the lowest, the index in summer is the highest, and the sunshine index in autumn is higher than that in spring. Its sunshine parameter K value is 230. Combined with the system parameter value of solar LED, the calculation formula of the solar cell capacity of LED signboard is estimated as follows: The above calculation results show that the adaptive switching sign requires two 10W crystalline silicon solar cells.

[0055] The calculation method of lithium battery capacity is: BC = 1.2 × battery discharge capacity correction factor × load operating current × Daily working hours × the longest continuous rainy days (Note: 1.2 is the safety factor) The adaptive switching sign uses a lithium battery with a correction factor of 1.5. The load current of the lithium battery is 420mA. When the working time of the solar LED battery is 4h and the number of consecutive cloudy days is 4d, the final battery usage calculation result is: BC=12A·h This power supply mode uses clean solar energy as energy, without the need for an additional power supply or charger. It stores solar energy when there is sufficient sunlight into batteries for use when there is insufficient sunlight, thus achieving sustainable power supply and achieving the goals of energy saving and high efficiency.

[0056] In this embodiment, the display content is updated in real time through the LED electronic display screen to ensure that the displayed safety sign information is always consistent with the actual working conditions of the current substation, and can adapt to the safety sign requirements corresponding to various work tasks of the substation. For example, when the equipment is under maintenance, it can display "under maintenance, please do not close the switch", and when the work is completed, it will switch to "completed, can be used normally", etc., which greatly enhances the applicability of the signboard in different work stages, helps to accurately guide the behavior of staff, avoid safety problems such as misoperation, reduce safety risks caused by information lag or errors, and improve the overall safety level of the substation. Compared with traditional fixed printed signs, the display content can be easily switched without changing the physical signboard, and the operation is simple and convenient. Especially when facing frequently changing work arrangements and status, it can respond quickly, save manpower, material costs and time costs, and improve work efficiency.

[0057] Furthermore, by using photovoltaic panels to collect solar energy and converting light energy into electrical energy through the synergy of the controller and light intensity sensor and storing it in lithium batteries, the effective use of clean energy is achieved, the dependence on traditional mains electricity is reduced, and energy conservation and environmental protection are achieved. In the case of insufficient light, such as cloudy days, nights, or when the photovoltaic panel fails, the battery can also be charged through an external power supply at the charging port, ensuring the stability and continuity of the power supply and ensuring that the normal operation of the signboard is not affected.

[0058] Furthermore, through the adaptive switching of signboards, automatic adaptation and flexible switching in multiple aspects such as sign content display, power supply guarantee and installation and fixation are realized, which fully meets the complex and changeable safety sign needs of substations, and comprehensively solves many problems such as traditional signboard information fixation, power supply dependence on municipal electricity, and inconvenient installation. It makes the safety signs in substations play a more scientific, reasonable and efficient role, further ensures the safe production and operation of substations, and also provides strong support for the transformation of substations to intelligent operation and maintenance, and promotes the safety management of substations to develop in a more modern and intelligent direction.

[0059] The above specific embodiments are preferred embodiments of the present invention, and are not intended to limit the specific implementation scope of the present invention. The scope of the present invention includes but is not limited to the present specific embodiments. All equivalent changes made in accordance with the shape, structure, and method of the present invention are within the protection scope of the present invention.

Claims

1. A method for identifying a sign, characterized in that: The steps include: S1. Obtain all work ticket information of the day from the power grid intelligent operation and inspection platform, analyze the safety measures in the work ticket, and obtain work interval information; S2. Determine configuration information of the signboard according to the working interval information, wherein the configuration information at least includes the type of the signboard and the number of the signboard; S3. Execute display and switching actions of corresponding safety signs according to the sign type and the number of sign boards.

2. A sign recognition method according to claim 1, characterized in that: In S1, the working interval information is calculated based on the safety measures information in the work ticket, including: Extract the work ticket safety measures to be executed based on the work ticket information; Scan the safety measures content of the work ticket according to the safety identification type to obtain the identification type in the work ticket; Slice the safety measures content of the work ticket according to the text identifier to obtain a slice statement; The number of the slicing statements is counted and used as the number of working intervals of the marked type to complete the acquisition of the working interval information.

3. A sign recognition method according to claim 2, characterized in that: Scanning the security measures of the work ticket according to the standard identification type to obtain the identification type in the work ticket includes: Establishing a keyword library based on various types of safety identification, and scanning the safety measures content of the work ticket line by line or section by section; When the identification keyword in the identification keyword library is matched, the corresponding safety identification type is recorded, and the scanning is completed and the recording result is output to obtain all the identification types in the safety measures content of the work ticket.

4. A sign recognition method according to claim 3, characterized in that: The scanning of the security measures content of the work ticket according to the standard identification type also includes: The serial number is used to mark the identification type obtained for the first time by scanning the security measures content of the work ticket, and the number of the identification types is initialized.

5. A sign recognition method according to claim 4, characterized in that: The S2 comprises the following sub-steps: Based on the statistics of the number of working intervals of the marking type, a counting program is synchronously used to count the number of the marking type, and when the statistics of the number of working intervals are completed, the counting program outputs the total number of the marking type; The sign type is used as the signboard type, and the total number of the signtype is used as the number of signboards of the corresponding signboard type, so as to obtain configuration information of the signboard.

6. A sign recognition device, using the sign recognition method according to any one of claims 1 to 5, characterized in that: include: The work ticket import module is used to import the work ticket information of the power grid intelligent operation and inspection platform, and filter out the work ticket information of the day according to the date or timestamp of the work ticket; The work ticket information recognition module is used to analyze the safety measures in the work ticket and obtain the work interval information; A signboard information generation module, used to determine the configuration information of the signboard according to the working interval information; The signboard activation module is used to execute the display and switching actions of the corresponding safety signs according to the signboard type and the number of signboards.

7. An adaptive switching sign, applied to the sign recognition device, characterized in that: include: An electronic display module, at least used to connect to the sign recognition device, obtain sign configuration information, display safety signs and safety sign type light warnings; The power supply module is used to configure the battery capacity based on the required load to supply energy to the electronic display module.

8. The adaptive switching sign according to claim 7, characterized in that: The electronic display module at least includes an LED electronic display screen and a USB interface for transmitting data to the LED electronic display screen; The LED electronic display screen is used to display various types of safety signs and to switch the display according to different types of safety signs, including LED lights for light warning according to different types of safety signs; The USB interface is used to connect the nameplate start module of the nameplate recognition device to obtain the nameplate type and the number of nameplates to control the operation of the LED electronic display screen.

9. The adaptive switching sign according to claim 8, characterized in that: The power supply module at least includes a solar cell array, a controller, a light intensity sensor, a lithium battery and an LED array; The solar cell array is used to convert light energy into current in the power supply circuit to charge the lithium battery; The controller is used to calculate the required load of the electronic display module according to the working time of the signboard, so as to configure the battery capacity and control the start and stop of the solar cell array; wherein: when the light intensity value detected by the light intensity sensor reaches a set threshold, the controller connects the charging circuit and the solar cell array starts charging; when the light intensity value detected by the light intensity sensor is lower than the set threshold, the controller cuts off the charging circuit and the solar cell array stops charging; The light intensity sensor is used to drive the controller; The storage battery is used to store the electric energy generated by the solar cell array and to supply power to the LED array when the LED electronic display screen is working.

10. The adaptive switching sign according to claim 8, characterized in that: The adaptive switching sign also includes: a sign fixing module; the sign fixing module at least includes a hook connected to the LED electronic display screen, and a fixing magnet that fixes the LED electronic display screen on the surface of the adaptive switching sign.

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