Safety tool positioning method and device, electronic equipment and storage medium

Abstract

The invention provides a safety tool positioning method and device, electronic equipment and a storage medium. The method comprises the steps that radio frequency tag data of a target safety tool and satellite positioning data of terminal equipment are acquired, the radio frequency tag data are used for representing identification information and state information of the target safety tool, and wireless radio frequency communication connection exists between the terminal equipment and the target safety tool; determining real-time position data of the target safety tool according to the radio frequency tag data and the satellite positioning data; and displaying the real-time position data of the target security tool on a graphical user interface. According to the invention, the technical problems of low positioning accuracy and poor anti-interference performance of the positioning method of the safety tool provided in the related technology are solved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of smart grid and Internet of Things, and in particular to a positioning method, device, electronic device and storage medium for a security tool. Background Art

[0002] In power engineering operations, the accurate location information of safety tools plays a key role in preventing work accidents, ensuring personnel safety and improving work efficiency. In related technologies, ultra-wideband positioning, Bluetooth positioning, visual recognition positioning and other methods are usually used to locate safety tools. Among them, ultra-wideband positioning is suitable for indoor environments or complex electromagnetic environments that require high-precision positioning; Bluetooth positioning is suitable for medium and short-distance positioning needs; visual recognition positioning uses image information captured by the camera to identify and track the location of the tool through image processing algorithms, providing intuitive positioning information. However, the positioning methods for safety tools provided in related technologies all have technical problems such as low positioning accuracy and poor anti-interference, which makes it difficult to achieve accurate monitoring and management of safety tools.

[0003] To address the above-mentioned problems, no effective solution has been proposed yet. Summary of the invention

[0004] The embodiments of the present disclosure provide a method, device, electronic device and storage medium for positioning a security tool, so as to at least solve the technical problems of low positioning accuracy and poor anti-interference performance existing in the positioning method of the security tool provided in the related art.

[0005] According to one aspect of an embodiment of the present disclosure, a method for positioning a security tool is provided, comprising: obtaining radio frequency tag data of a target security tool and satellite positioning data of a terminal device, wherein the radio frequency tag data is used to represent identification information and status information of the target security tool, and a wireless radio frequency communication connection exists between the terminal device and the target security tool; determining real-time location data of the target security tool based on the radio frequency tag data and the satellite positioning data; and displaying the real-time location data of the target security tool on a graphical user interface.

[0006] Optionally, acquiring the radio frequency tag data of the target security tool includes: transmitting a wireless radio frequency signal to a radio frequency identification tag on the target security tool via a terminal device; and receiving radio frequency tag data returned by the radio frequency tag based on the wireless radio frequency signal.

[0007] Optionally, obtaining the satellite positioning data of the terminal device includes: obtaining satellite signal data, wherein the satellite signal data includes a pseudorange code signal, a navigation message signal and a carrier signal emitted by a target satellite; parsing the satellite signal data to obtain a parsing result, wherein the parsing result is used to represent the pseudorange observation value and the carrier phase observation value corresponding to the satellite signal data; correcting the parsing result to obtain a corrected result; and determining the satellite positioning data based on the corrected result.

[0008] Optionally, correcting the analysis result to obtain the corrected result includes: correcting the analysis result using a preset correction method to obtain the corrected result, wherein the preset correction method includes at least one of the following: atmospheric delay correction, multipath effect detection and correction.

[0009] Optionally, determining the real-time location data of the target security tool based on the radio frequency tag data and the satellite positioning data includes: determining the radio frequency distance data between the target security tool and the terminal device based on the radio frequency tag data; and fusing the radio frequency distance data and the satellite positioning data to obtain the real-time location data.

[0010] Optionally, the method for locating a security tool in the embodiment of the present disclosure further includes: generating warning prompt information in response to the real-time location data satisfying a target warning condition, wherein the warning prompt information is used to prompt a target user to perform security management on the target security tool.

[0011] According to one embodiment of the present disclosure, a positioning device for a security tool is also provided, including: an acquisition module, used to acquire radio frequency tag data of a target security tool and satellite positioning data of a terminal device, wherein the radio frequency tag data is used to represent identification information and status information of the target security tool, and there is a wireless radio frequency communication connection between the terminal device and the target security tool; a determination module, used to determine the real-time location data of the target security tool based on the radio frequency tag data and the satellite positioning data; and a display module, used to display the real-time location data of the target security tool on a graphical user interface.

[0012] Optionally, the acquisition module is further used to: transmit a wireless radio frequency signal to a radio frequency identification tag on the target security tool via the terminal device; and receive radio frequency tag data returned by the radio frequency tag based on the wireless radio frequency signal.

[0013] Optionally, the acquisition module is also used to: acquire satellite signal data, wherein the satellite signal data includes a pseudorange code signal, a navigation message signal and a carrier signal emitted by a target satellite; parse the satellite signal data to obtain a parsing result, wherein the parsing result is used to represent the pseudorange observation value and the carrier phase observation value corresponding to the satellite signal data; correct the parsing result to obtain a corrected result; and determine the satellite positioning data based on the corrected result.

[0014] Optionally, the acquisition module is further used to: use a preset correction method to correct the analysis result to obtain a corrected result, wherein the preset correction method includes at least one of the following: atmospheric delay correction, multipath effect detection and correction.

[0015] Optionally, the determination module is further used to: determine the radio frequency distance data between the target security tool and the terminal device based on the radio frequency tag data; and obtain real-time location data based on the fusion processing of the radio frequency distance data and the satellite positioning data.

[0016] According to one embodiment of the present disclosure, an electronic device is also provided, including: a processor; a memory for storing processor executable instructions; wherein the processor is configured to execute instructions to implement the security tool positioning method in the embodiment of the present disclosure.

[0017] According to one embodiment of the present disclosure, a computer-readable storage medium is also provided, the computer-readable storage medium including a stored executable program, wherein when the executable program is running, the device where the storage medium is located is controlled to execute the positioning method of the security tool in the embodiment of the present disclosure.

[0018] According to one embodiment of the present disclosure, a computer program product is also provided. The computer program product includes computer instructions. When the computer instructions are executed by a processor, the method for locating the security tool in the embodiment of the present disclosure is implemented.

[0019] In the disclosed embodiment, by acquiring the radio frequency tag data of the target safety tool and the satellite positioning data of the terminal device, and determining the real-time position data of the target safety tool based on the radio frequency tag data and the satellite positioning data, and then displaying the real-time position data of the target safety tool on a graphical user interface, the purpose of real-time monitoring and management of safety tools at the power engineering construction site is achieved, thereby achieving the technical effect of improving the positioning accuracy and anti-interference ability of the positioning method for safety tools, and thus solving the technical problems of low positioning accuracy and poor anti-interference ability of the positioning method for safety tools provided in the related art. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings described herein are used to provide a further understanding of the present disclosure and constitute a part of the present disclosure. The illustrative embodiments of the present disclosure and their descriptions are used to explain the present disclosure and do not constitute an improper limitation on the present disclosure. In the drawings:

[0021] Figure 1 is a flow chart of a method for locating a security tool according to one embodiment of the present disclosure;

[0022] Figure 2 It is a structural block diagram of a positioning device for a safety tool according to one embodiment of the present disclosure. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the scheme of the present disclosure, the technical scheme in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in the field without creative work should fall within the scope of protection of the present disclosure.

[0024] It should be noted that the terms "first", "second", etc. in the specification and claims of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present disclosure described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products, or devices.

[0025] In the related technologies, ultra-wideband positioning, Bluetooth positioning, visual recognition positioning and other methods are usually used to locate security tools. Among them, ultra-wideband positioning is suitable for indoor environments or complex electromagnetic environments that require high-precision positioning; Bluetooth positioning is suitable for medium and short-distance positioning needs; visual recognition positioning uses image information captured by the camera to identify and track the location of the tool through image processing algorithms, providing intuitive positioning information. However, the positioning methods for security tools provided in the related technologies all have technical problems such as low positioning accuracy and poor anti-interference, making it difficult to achieve accurate monitoring and management of security tools.

[0026] Specifically, although ultra-wideband positioning can theoretically provide high-precision positioning in the complex environment of power engineering operations, the actual positioning accuracy may be significantly affected by the electromagnetic interference generated by power facilities, as well as metal obstacles and multipath effects at the operation site. In particular, when a large number of metal structures are encountered on the signal transmission path, the reflection and refraction of ultra-wideband signals will increase the complexity of the positioning algorithm and reduce the accuracy and stability of positioning. The Bluetooth positioning method has a limited positioning range due to the characteristics of its signal strength attenuation with distance, as well as the signal obstruction and interference that may be encountered at the power engineering operation site, and the positioning accuracy is significantly reduced when there are obstructions between the signal source and the receiver. In addition, the positioning accuracy of Bluetooth technology is usually within a few meters, and its accuracy cannot meet the requirements for power engineering applications that require centimeter-level positioning accuracy. The difficulty of image recognition and processing in visual recognition positioning methods will increase significantly under conditions such as light changes, obstructions, backlight or high reflectivity surfaces, resulting in positioning failure or large positioning errors. In power engineering operations, due to the complex lighting conditions on site, the frequent movement of operators and tools, and the interference of a large number of metal equipment and backgrounds, the stability and reliability of the visual positioning system face severe challenges, especially at night or in an environment with insufficient lighting, which will reduce the effectiveness of visual positioning. In summary, ultra-wideband positioning, Bluetooth positioning, and visual recognition positioning all have certain limitations in power engineering operations, making it difficult to achieve real-time, high-precision, and highly anti-interference safety tool positioning monitoring.

[0027] According to an embodiment of the present disclosure, a method embodiment of a method for locating a security tool is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and although a logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0028] The method embodiment can be executed in an electronic device or a similar computing device including a memory and a processor. Taking running on a computer terminal as an example, the computer terminal may include one or more processors (processors may include but are not limited to central processing units (CPU), graphics processing units (GPU), digital signal processing (DSP) chips, microprocessors (MCU), programmable logic devices (Field Programmable Gate Array, FPGA), neural network processors (Neural-network Processor Unit, NPU), tensor processors (TensorProcessing Unit, TPU), artificial intelligence (Artificial Intelligence, AI) type processors and other processing devices) and a memory for storing data. Optionally, the above-mentioned computer terminal may also include a transmission device, an input and output device, and a display device for communication functions. It can be understood by those of ordinary skill in the art that the above-mentioned structural description is only for illustration, and it does not limit the structure of the above-mentioned computer terminal. For example, the computer terminal may also include more or fewer components than the above-mentioned structural description, or have a configuration different from the above-mentioned structural description.

[0029] The memory can be used to store computer programs, for example, software programs and modules of application software, such as the computer program corresponding to the positioning method of the security tool in the embodiment of the present disclosure. The processor executes various functional applications and data processing by running the computer program stored in the memory, that is, the positioning method of the above-mentioned security tool is realized. The memory may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory may further include a memory remotely arranged relative to the processor, and these remote memories may be connected to the mobile terminal via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0030] The transmission device is used to receive or send data via a network. The specific example of the above network may include a wireless network provided by a communication provider of the mobile terminal. In one example, the transmission device includes a network adapter (Network Interface Controller, referred to as NIC), which can be connected to other network devices through a base station so as to communicate with the Internet. In one example, the transmission device can be a radio frequency (Radio Frequency, referred to as RF) module, which is used to communicate with the Internet wirelessly.

[0031] The display device may be, for example, a touch screen type liquid crystal display (LCD) and a touch display (also referred to as a "touch screen" or "touch display screen"). The liquid crystal display may enable a user to interact with a user interface of a mobile terminal. In some embodiments, the mobile terminal has a graphical user interface (GUI), and a user may interact with the GUI by finger contacts and / or gestures on a touch-sensitive surface, wherein the human-computer interaction functions here may optionally include the following interactions: creating web pages, drawing, word processing, making electronic documents, games, video conferencing, instant messaging, sending and receiving emails, call interfaces, playing digital videos, playing digital music and / or web browsing, etc. The executable instructions for executing the above human-computer interaction functions are configured / stored in a computer program product or readable storage medium executable by one or more processors.

[0032] Figure 1 is a flow chart of a method for locating a security tool according to one embodiment of the present disclosure, such as Figure 1 As shown, the method comprises the following steps:

[0033] Step S11, obtaining radio frequency tag data of the target security tool and satellite positioning data of the terminal device, wherein the radio frequency tag data is used to represent identification information and status information of the target security tool, and a wireless radio frequency communication connection exists between the terminal device and the target security tool;

[0034] Step S12, determining the real-time location data of the target security tool according to the radio frequency tag data and the satellite positioning data;

[0035] Step S13: displaying the real-time location data of the target security tool on the graphical user interface.

[0036] The above-mentioned target safety tools refer to various tools and equipment used to ensure the safety of workers and improve work efficiency in power engineering operations or other related industries, such as insulating gloves, insulating ropes, safety helmets, climbing tools, cable cutters, personal protective equipment, etc. The accurate position and use status of the above-mentioned safety tools at the work site are of great significance to ensure work safety and avoid accidents.

[0037] The above-mentioned RFID tag data refers to the information carried by the wireless radio frequency signal sent by the RFID tag integrated on the security tool, which usually contains the unique identification number of the security tool, such as the serial number or ID, and possible status information, such as whether the tool has been used, whether it has passed the safety inspection, whether it is within the validity period, etc. The RFID tag can exchange data with the terminal device without contact, so that the terminal device can remotely read and identify the identification information and real-time status of the security tool.

[0038] The above satellite positioning data refers to the precise location information of the terminal device obtained by the terminal device after receiving and processing the satellite signals of the Beidou satellite navigation system. The Beidou positioning algorithm is based on the principle of triangulation positioning of satellite measurement. It measures the distance between the known position satellite and the user receiver and combines the data of multiple satellites to calculate the precise location of the terminal device.

[0039] For example, the smart wearable device worn by the operator, such as a smart bracelet, is integrated with a radio frequency tag data reading module and a Beidou positioning chip, which is used to perform real-time positioning and status monitoring of on-site safety tools. When the operator approaches or uses a certain insulating glove, the smart bracelet automatically detects and reads the high-frequency radio frequency tag data integrated on the insulating glove. The radio frequency tag data stores the unique serial number and current status information of the insulating glove, such as whether it has passed the safety inspection and whether it is within the validity period. At the same time, the smart bracelet receives the Beidou satellite signal and calculates the precise latitude and longitude coordinates of the smart bracelet in combination with the satellite orbit information. Subsequently, the smart bracelet sends the read radio frequency tag data together with the calculated Beidou positioning data to the central monitoring system. Based on the received data information, the central monitoring system determines the relative position of the insulating gloves relative to the smart bracelet through fusion processing technology, and then calculates the real-time position data of the insulating gloves at the work site in combination with the absolute position of the smart bracelet. Finally, the real-time position data of the insulating gloves is displayed in an intuitive map form on the graphical user interface of the central monitoring system, so that managers can grasp the specific location of the insulating gloves, as well as the usage status and validity period in real time. The positioning method based on the fusion of Beidou positioning and radio frequency tag data has effectively improved the safety management and control level of the power engineering operation site, ensuring that operators can use safety tools correctly and avoid potential operational risks, while also improving the positioning accuracy and anti-interference ability of safety tools.

[0040] Based on the above steps S11 to S13, by obtaining the radio frequency tag data of the target safety tool and the satellite positioning data of the terminal device, and determining the real-time position data of the target safety tool based on the radio frequency tag data and the satellite positioning data, and then displaying the real-time position data of the target safety tool on the graphical user interface, the purpose of real-time monitoring and management of safety tools at the power engineering construction site is achieved, thereby achieving the technical effect of improving the positioning accuracy and anti-interference ability of the positioning method for safety tools, and thus solving the technical problems of low positioning accuracy and poor anti-interference ability of the positioning method for safety tools provided in the relevant technology.

[0041] The following is a further introduction to the positioning method of the security tool in the embodiment of the present disclosure.

[0042] Optionally, in step S11, obtaining the radio frequency tag data of the target security tool includes:

[0043] Step S1111, transmitting a wireless radio frequency signal to a radio frequency identification tag on a target security tool via a terminal device;

[0044] Step S1112, receiving the RFID tag data transmitted back by the RFID tag based on the wireless RFID signal.

[0045] The above-mentioned RFID tags refer to electronic tags integrated into the target security tool, which can communicate data with the terminal device through wireless radio frequency signals. The RFID tag is embedded with a microchip and an antenna, and the chip stores the unique identification information and status information of the security tool, such as the serial number, security inspection status or validity period. When the terminal device transmits a wireless radio frequency signal, the RFID tag receives these signals through its antenna, does not need battery power, activates the chip through the signal, reads the stored data, and transmits the RFID tag data back to the terminal device in the form of a wireless radio frequency signal.

[0046] For example, for safety tool types such as ropes and sheets that are difficult to conventionally fix RFID tags, flexible and durable tag packaging materials are used to ensure that the tags can fit tightly on the surfaces of various tools, and maintain good reading performance and connection stability even in harsh working environments. For example, RFID tags can be designed to be streamlined and smaller in size to reduce the extra burden and interference when wearing or carrying tools, while reducing the risk of accidental damage to the tags.

[0047] Exemplarily, the terminal device communicates and interacts with the RFID tag integrated on the safety tool through wireless RFID signals. Whenever an operator approaches or picks up a hard hat equipped with an RFID tag, the terminal device immediately transmits a wireless RFID signal to the RFID tag on the hard hat. After the RFID tag receives the signal, its built-in antenna uses the energy to activate the built-in microchip, which then reads the stored hard hat serial number and the latest safety inspection status. The RFID tag then transmits a RFID signal containing the above RFID tag data back to the terminal device. The terminal device receives and processes the above RFID tag data, immediately identifies the unique identifier of the hard hat, and confirms whether its safety inspection status is compliant. Through this process, operators can monitor the status of safety tools in real time, ensuring that all tools have undergone proper safety inspections before use and are within the validity period, thereby ensuring the safety of operators and improving the efficiency and accuracy of on-site management.

[0048] Based on the above optional embodiments, by transmitting a wireless RF signal to the RFID tag on the target safety tool via the terminal device and receiving the RFID tag data transmitted back by the RFID tag based on the wireless RF signal, the management efficiency of the safety tool can be improved, thereby enhancing the safety of the operation and the standardization of the operation.

[0049] Optionally, in step S11, obtaining satellite positioning data of the terminal device includes:

[0050] Step S1121, acquiring satellite signal data, wherein the satellite signal data includes a pseudo-range code signal, a navigation message signal and a carrier signal sent by the target satellite;

[0051] Step S1122, analyzing the satellite signal data to obtain an analysis result, wherein the analysis result is used to represent a pseudorange observation value and a carrier phase observation value corresponding to the satellite signal data;

[0052] Step S1123, correcting the analysis result to obtain a corrected result;

[0053] Step S1124, determining the satellite positioning data based on the correction result.

[0054] The target satellite is the BeiDou Navigation Satellite System, which consists of three parts: the space segment, the ground segment and the user segment. It can provide all-weather, high-precision positioning, navigation and timing services around the world. In addition, the BeiDou system also uses dual-frequency or multi-frequency signals, which can effectively reduce the impact of ionospheric and tropospheric delays and improve positioning accuracy and reliability.

[0055] The pseudo-range code signal mentioned above refers to a special coded signal used for ranging transmitted by Beidou satellites. The terminal device measures the time delay between the satellite transmission and the terminal device reception, and then multiplies it by the speed of light to obtain the estimated distance between the satellite and the terminal device, i.e., the pseudo-range. The pseudo-range code signal contains coded information used to distinguish different satellites, ensuring that the terminal device can identify and measure the signal propagation time to a specific satellite.

[0056] The above-mentioned navigation message signals refer to data signals sent by Beidou satellites that contain information such as satellite orbit parameters, system time, satellite health status, etc. By receiving and interpreting the navigation messages, the terminal equipment can obtain the necessary orbit data and clock correction parameters for positioning, thereby improving the accuracy and reliability of positioning.

[0057] The above-mentioned carrier signal refers to the continuous wave signal with a fixed frequency emitted by Beidou satellites. The carrier signal carries phase information and can be used for high-precision positioning. The terminal device can measure the carrier phase by monitoring the phase of the received carrier signal and combining it with the known position and emission time of the satellite to obtain the carrier phase observation value, further improving the positioning accuracy. Especially when performing differential positioning or real-time dynamic positioning, carrier phase measurement is the key to achieving centimeter-level or even millimeter-level positioning.

[0058] The pseudo-range observation value is the estimated distance between the satellite and the terminal calculated by the terminal device based on the received pseudo-range code signal. It is obtained by measuring the time delay from the signal being transmitted from the satellite to the terminal receiving it, and then multiplying this time delay by the speed of light. The pseudo-range observation value includes various errors in the signal propagation process, such as satellite clock error, receiver clock error, ionosphere and troposphere delay, etc.

[0059] The above carrier phase observation value refers to the difference between the satellite signal phase measured by the terminal device from the received carrier signal and the phase generated locally by the terminal. Compared with pseudo-range observation, carrier phase observation provides higher-precision distance measurement. The wavelength of the carrier signal is shorter, and the resolution of the phase measurement is higher, but there is also an integer ambiguity problem, that is, the number of complete cycles in the signal phase difference cannot be directly determined. The unknown integer parameters in the carrier phase measurement can be obtained by integer ambiguity resolution. Commonly used integer ambiguity resolution algorithms include least squares method, Kalman filter, etc.

[0060] Exemplarily, after the terminal device obtains the satellite signal data composed of the pseudo-range code signal, navigation message signal and carrier signal transmitted by the Beidou satellite, it parses and processes the signal data, extracts the pseudo-range observation value and the carrier phase observation value, and forms the preliminary positioning data. Subsequently, the preliminary positioning data is corrected through correction processing to eliminate or reduce various errors that may be encountered in the positioning process, and finally the precise location information of the user terminal device, that is, the satellite positioning data, is determined based on the corrected data.

[0061] Based on the above optional embodiments, by acquiring satellite signal data and analyzing the satellite signal data to obtain an analysis result, and then correcting the analysis result to obtain a correction result, and finally determining the satellite positioning data based on the correction result, the error in the positioning process can be reduced, ensuring that the positioning information obtained by the terminal device is highly accurate and reliable.

[0062] Optionally, in step S1123, the analysis result is corrected to obtain the corrected result, including: correcting the analysis result using a preset correction method to obtain the corrected result, wherein the preset correction method includes at least one of the following: atmospheric delay correction, multipath effect detection and correction.

[0063] The above-mentioned atmospheric delay refers to the necessary correction steps implemented during the satellite navigation positioning process to compensate for the additional delay suffered by the signal when passing through the earth's atmosphere, including but not limited to ionospheric delay correction and tropospheric delay correction. The uneven distribution of electron density in the ionosphere will cause the signal path to become longer, resulting in delays, and the lower the signal frequency, the greater the ionospheric delay. Satellite navigation systems can calculate ionospheric delays and make corrections by using dual-frequency or multi-frequency signals. The troposphere is the lowest layer of the earth's atmosphere, and changes in water vapor and atmospheric pressure will also cause signal delays. Tropospheric delay has little to do with signal frequency, but is related to the signal's angle of incidence and weather conditions. Correcting tropospheric delay usually relies on meteorological data and atmospheric models. The pseudorange or carrier phase observations are corrected by predicting and calculating the delay in the troposphere.

[0064] The above-mentioned multipath effect detection and correction refers to a series of detection and correction strategies adopted in satellite navigation systems to identify and correct positioning errors caused by multiple paths formed by reflection and scattering of signals to reach the receiver. When the satellite signal reaches the receiver after being reflected by the ground or other objects, this additional path will increase the signal propagation time, causing deviations in the pseudorange or carrier phase measured by the receiver, thereby affecting the positioning accuracy. Multipath effect detection and correction usually includes the following steps: signal strength monitoring, correlation analysis, code phase comparison, multi-antenna technology, time delay estimation, and spatial diversity reception.

[0065] For example, suppose that at a power engineering construction site, workers carry terminal devices that integrate Beidou positioning chips and high-frequency radio frequency identification tag reading modules. The terminal device receives signal data from Beidou satellites, including pseudo-range ranging code signals, navigation message signals, and carrier signals. First, the terminal device decodes and demodulates the satellite signal data to extract pseudo-range observations and carrier phase observations. Subsequently, in order to correct the atmospheric delay, dual-frequency observation data is used, that is, signals of different frequencies are received and analyzed simultaneously. By calculating the delay difference between the high-frequency signal and the low-frequency signal, the ionospheric delay can be accurately estimated, and then the pseudo-range or carrier phase observations can be adjusted. At the same time, tropospheric delay correction is performed, and real-time meteorological data, including temperature, pressure, and humidity, are used to calculate the tropospheric delay, and the observations are corrected accordingly to reduce the adverse effects of the atmosphere on positioning accuracy. Taking into account the possible multipath effect, the terminal device continuously monitors the strength and phase changes of the received signal. Once an abnormal fluctuation in signal strength or phase is detected, the abnormal time point is determined by analyzing the time series of signal strength, and the reflection path of the signal is estimated by combining the arrival time and phase information of the signal, and then the additional delay caused by the multipath effect is calculated using the time delay estimation method. Finally, the calculated additional delay is applied to the correction of the pseudorange observation value or the carrier phase observation value to eliminate the influence of the multipath effect on the positioning accuracy.

[0066] Based on the above optional embodiments, by using a preset correction method to correct the analysis result to obtain a correction result, the accuracy and reliability of positioning can be improved.

[0067] Optionally, in step S12, determining the real-time location data of the target security tool according to the radio frequency tag data and the satellite positioning data includes:

[0068] Step S121, determining radio frequency distance data between the target security tool and the terminal device based on the radio frequency tag data;

[0069] Step S122, performing fusion processing based on the radio frequency distance data and the satellite positioning data to obtain real-time location data.

[0070] For example, in a power engineering construction scenario, workers use a dedicated terminal device equipped with radio frequency identification function and Beidou positioning chip to monitor safety tools in real time. Each safety tool is attached with a high-frequency radio frequency identification tag, which stores the radio frequency tag data of its unique identification and status information. When the terminal device reads the signal of the radio frequency tag data, it can calculate the radio frequency distance data between the safety tool and the safety tool based on the signal strength and the preset propagation model. Subsequently, the terminal device combines its own Beidou satellite positioning data, that is, the longitude, latitude and altitude information obtained by parsing the Beidou satellite signal, with the above radio frequency distance data for fusion processing to obtain real-time location data.

[0071] Based on the above optional embodiment, the radio frequency distance data between the target security tool and the terminal device is determined based on the radio frequency tag data, and then the radio frequency distance data and the satellite positioning data are fused and processed to obtain real-time location data, which can enhance the adaptability and stability of the positioning system, and the obtained positioning information is more accurate.

[0072] Optionally, the method for locating a security tool in the embodiment of the present disclosure further includes: generating warning prompt information in response to the real-time location data satisfying a target warning condition, wherein the warning prompt information is used to prompt a target user to perform security management on the target security tool.

[0073] The above target warning conditions refer to the rules or states set to automatically trigger alarms during the real-time monitoring of security tools, including but not limited to the following two: the security tool leaves the designated area, and the security tool is used by unauthorized personnel. When the tool leaves the designated area or is used by unauthorized personnel, an alarm can be automatically triggered.

[0074] For example, when the real-time location of the target safety tool leaves the designated operation or storage area, an early warning message is immediately generated according to the preset rules to inform the operator which safety tool has left the designated area and the specific time of departure. At the same time, if the terminal device detects that the RFID tag on the safety tool is read by an unrecorded or unauthorized terminal device, the early warning condition will also be triggered and an early warning message will be generated. The early warning message contains the ID of the safety tool, the last confirmed legal user information, and the terminal ID or location information of the illegal user currently trying to read, which is used for security management of the safety tool.

[0075] Based on the above optional embodiment, in response to the real-time position data satisfying the target warning condition, early warning prompt information is generated, which can enhance the safety management level of the work site.

[0076] Through the description of the above implementation methods, those skilled in the art can clearly understand that the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course can also be implemented by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present disclosure, or the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, a disk, or an optical disk), and includes a number of instructions for a terminal device (which can be a mobile phone, a computer, a server, or a network device, etc.) to execute the methods of each embodiment of the present disclosure.

[0077] In the embodiments of the present disclosure, a positioning device for a safety tool is also provided, and the device is used to implement the above-mentioned embodiments and preferred implementation modes, and the descriptions that have been made will not be repeated. As used below, the term "module" can implement a combination of software and / or hardware of a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, the implementation of hardware, or a combination of software and hardware, is also possible and conceivable.

[0078] Figure 2 is a structural block diagram of a positioning device for a safety tool according to one embodiment of the present disclosure, such as Figure 2 As shown, the device comprises:

[0079] The acquisition module 201 is used to acquire the radio frequency tag data of the target security tool and the satellite positioning data of the terminal device, wherein the radio frequency tag data is used to represent the identification information and status information of the target security tool, and there is a wireless radio frequency communication connection between the terminal device and the target security tool;

[0080] A determination module 202, for determining the real-time location data of the target security tool according to the radio frequency tag data and the satellite positioning data;

[0081] The display module 203 is used to display the real-time location data of the target security tool on the graphical user interface.

[0082] Optionally, the acquisition module 201 is further used to: transmit a wireless radio frequency signal to a radio frequency identification tag on a target security tool via a terminal device; and receive radio frequency tag data returned by the radio frequency tag based on the wireless radio frequency signal.

[0083] Optionally, the acquisition module 201 is also used to: acquire satellite signal data, wherein the satellite signal data includes a pseudorange code signal, a navigation message signal and a carrier signal emitted by a target satellite; parse the satellite signal data to obtain a parsing result, wherein the parsing result is used to represent a pseudorange observation value and a carrier phase observation value corresponding to the satellite signal data; correct the parsing result to obtain a corrected result; and determine the satellite positioning data based on the corrected result.

[0084] Optionally, the acquisition module 201 is further used to: use a preset correction method to correct the analysis result to obtain a corrected result, wherein the preset correction method includes at least one of the following: atmospheric delay correction, multipath effect detection and correction.

[0085] Optionally, the determination module 202 is further used to: determine the radio frequency distance data between the target security tool and the terminal device based on the radio frequency tag data; and obtain real-time location data by fusing the radio frequency distance data and the satellite positioning data.

[0086] According to another aspect of an embodiment of the present disclosure, an electronic device is also provided, including: a processor; a memory for storing processor executable instructions; wherein the processor is configured to execute instructions to implement the positioning method of the security tool in the embodiment of the present disclosure.

[0087] Optionally, in this embodiment, the processor may be configured to perform the following steps through a computer program:

[0088] S1, obtaining radio frequency tag data of a target security tool and satellite positioning data of a terminal device, wherein the radio frequency tag data is used to represent identification information and status information of the target security tool, and a wireless radio frequency communication connection exists between the terminal device and the target security tool;

[0089] S2, determining the real-time location data of the target security tool based on the radio frequency tag data and the satellite positioning data;

[0090] S3,displays the real-time location data of target security tools on a graphical user interface.

[0091] According to one embodiment of the present disclosure, a computer-readable storage medium is also provided, characterized in that the computer-readable storage medium includes a stored executable program, wherein when the executable program is running, the device where the storage medium is located is controlled to execute the positioning method of the security tool in the embodiment of the present disclosure.

[0092] Optionally, in this embodiment, the storage medium may be configured to store a computer program for performing the following steps:

[0093] S1, obtaining radio frequency tag data of a target security tool and satellite positioning data of a terminal device, wherein the radio frequency tag data is used to represent identification information and status information of the target security tool, and a wireless radio frequency communication connection exists between the terminal device and the target security tool;

[0094] S2, determining the real-time location data of the target security tool based on the radio frequency tag data and the satellite positioning data;

[0095] S3,displays the real-time location data of target security tools on a graphical user interface.

[0096] Optionally, in this embodiment, the above-mentioned storage medium may include but is not limited to: a USB flash drive, a read-only memory (ROM), a random access memory (RAM), a mobile hard disk, a magnetic disk or an optical disk, and other media that can store computer programs.

[0097] According to one embodiment of the present disclosure, a computer program product is further provided, characterized in that the computer program product includes computer instructions, and when the computer instructions are executed by a processor, the positioning method of the security tool in the embodiment of the present disclosure is implemented.

[0098] Optionally, in this embodiment, the computer program product may be configured as a computer program for executing the following steps:

[0099] S1, obtaining radio frequency tag data of a target security tool and satellite positioning data of a terminal device, wherein the radio frequency tag data is used to represent identification information and status information of the target security tool, and a wireless radio frequency communication connection exists between the terminal device and the target security tool;

[0100] S2, determining the real-time location data of the target security tool based on the radio frequency tag data and the satellite positioning data;

[0101] S3,displays the real-time location data of target security tools on a graphical user interface.

[0102] The serial numbers of the above-mentioned embodiments of the present disclosure are only for description and do not represent the advantages or disadvantages of the embodiments.

[0103] In the above embodiments of the present disclosure, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0104] In the several embodiments provided in the present disclosure, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the device embodiments described above are only schematic. For example, the division of units can be a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of units or modules, which can be electrical or other forms.

[0105] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed over multiple units. Some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0106] In addition, each functional unit in each embodiment of the present disclosure may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0107] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present disclosure, in essence, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for a computer device (which can be a personal computer, a server or a network device, etc.) to perform all or part of the steps of the various embodiments of the present disclosure. The aforementioned storage medium includes: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, disk or optical disk, etc. Various media that can store program codes.

[0108] The above are only preferred embodiments of the present disclosure. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present disclosure. These improvements and modifications should also be regarded as the protection scope of the present disclosure.

Claims

1. A method for positioning a safety tool, characterized in that: include: Acquire radio frequency tag data of a target security tool and satellite positioning data of a terminal device, wherein the radio frequency tag data is used to represent identification information and status information of the target security tool, and a wireless radio frequency communication connection exists between the terminal device and the target security tool; Determining real-time location data of the target security tool based on the radio frequency tag data and the satellite positioning data; The real-time location data of the target security tool is presented on a graphical user interface.

2. The method for positioning a safety tool according to claim 1, characterized in that: Acquiring the radio frequency tag data of the target security tool includes: transmitting a wireless radio frequency signal to a radio frequency identification tag on the target security tool via the terminal device; The radio frequency tag data returned by the radio frequency tag based on the wireless radio frequency signal is received.

3. The method for positioning a safety tool according to claim 1, characterized in that: Acquiring the satellite positioning data of the terminal device includes: Acquiring satellite signal data, wherein the satellite signal data includes a pseudo-range code signal, a navigation message signal and a carrier signal sent by a target satellite; Analyze the satellite signal data to obtain an analysis result, wherein the analysis result is used to represent a pseudorange observation value and a carrier phase observation value corresponding to the satellite signal data; Correcting the analysis result to obtain a corrected result; The satellite positioning data is determined based on the correction result.

4. The method for positioning a safety tool according to claim 3, characterized in that: The analysis result is corrected to obtain the corrected result including: The analysis result is corrected by using a preset correction method to obtain the corrected result, wherein the preset correction method includes at least one of the following: atmospheric delay correction, multipath effect detection and correction.

5. The method for positioning a safety tool according to claim 1, characterized in that: Determining the real-time location data of the target security tool according to the radio frequency tag data and the satellite positioning data includes: Determining radio frequency distance data between the target security tool and the terminal device based on the radio frequency tag data; The real-time position data is obtained by fusing the radio frequency distance data and the satellite positioning data.

6. The method for positioning a safety tool according to claim 1, characterized in that: The method further comprises: In response to the real-time location data satisfying a target warning condition, a warning prompt information is generated, wherein the warning prompt information is used to prompt a target user to perform security management on the target security tool.

7. A safety tool positioning device, characterized in that: include: An acquisition module, used to acquire radio frequency tag data of a target security tool and satellite positioning data of a terminal device, wherein the radio frequency tag data is used to represent identification information and status information of the target security tool, and a wireless radio frequency communication connection exists between the terminal device and the target security tool; A determination module, used to determine the real-time location data of the target security tool according to the radio frequency tag data and the satellite positioning data; A display module is used to display the real-time location data of the target security tool on a graphical user interface.

8. An electronic device, characterized in that: include: processor; a memory for storing instructions executable by the processor; The processor is configured to execute the instructions to implement the method for positioning the security tool according to any one of claims 1 to 6.

9. A computer-readable storage medium, characterized in that: The computer-readable storage medium includes a stored executable program, wherein when the executable program is run, the device where the storage medium is located is controlled to execute the security tool positioning method according to any one of claims 1 to 6.

10. A computer program product, characterized in that The computer program product comprises computer instructions, which, when executed by a processor, implement the method for locating a security tool as claimed in any one of claims 1 to 6.

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