Industrial asset scanning method, security device and gateway

Abstract

The invention discloses an industrial asset scanning method, security equipment and a gateway. The industrial asset scanning method comprises the following steps: adding a wireless module and a Bluetooth module to each security equipment; when any newly-added security device moves to a set position, the wireless module and the Bluetooth module are started, and meanwhile, a connection signal is sent out through a connection mode corresponding to the highest power of the Bluetooth module; after receiving the connection signal, the security device attempts to connect with a newly added security device, records the security device in a sub-connection list, sends an activation request to a master gateway through a Bluetooth module, activates a wireless module, and sends an updated connection list to the master gateway corresponding to the security device; and after receiving the connection signal or the activation request, the total gateway activates the wireless module, tries to connect with the newly-added security device according to the connection ID, and receives device information of the newly-added security device. The method can greatly reduce energy consumption and improve positioning precision.

Description

Technical Field

[0001] The present invention relates to the field of industrial Internet of Things technology, and in particular to an industrial asset scanning system and a working method thereof based on the collaboration of Bluetooth and wireless communications, which are suitable for equipment positioning and data management in environments such as factories and warehouses. Background Art

[0002] Modern industrial asset management often relies on real-time connections via 5G networks, and uses the connection information to determine the status of the equipment. However, this approach has the following shortcomings: Industrial asset scanning technology faces multiple systemic challenges. Traditional solutions rely on a single wireless communication module for continuous operation, failing to strike a balance between penetration and energy efficiency. Using Wi-Fi for positioning and data transmission, the 5GHz band experiences over 80% signal attenuation after penetrating a 60cm brick wall, resulting in a sharp drop in device discovery rates. While the 2.4GHz band offers slightly better wall penetration, multipath effects cause positioning errors to exceed 3 meters. Furthermore, the standby power consumption of a continuously powered Wi-Fi module can reach as high as 50mA, reducing the lifespan of battery-powered devices to less than three months. Using Bluetooth instead, while power consumption is reduced to milliamperes, the maximum 2Mbps transmission rate cannot support the exchange of hundreds of megabytes of data, such as device parameter packages and 3D drawings. Segmented transmission requires over ten minutes, severely impacting production line efficiency.

[0003] Spatial positioning technology has fundamental limitations: ranging methods based on received signal strength (RSSI) fluctuate by more than ±10dB in metallic environments, and positioning errors in densely populated areas can reach meters. While UWB ultra-wideband solutions offer centimeter-level accuracy, module power consumption surges and resistance to metal reflections is weak. In multi-room scenarios, device and gateway affiliation relies on manually pre-set area divisions, and production line restructuring requires reconfiguring the coordinates of hundreds of devices, taking more than weeks. Data synchronization mechanisms have serious flaws: cross-region device information must be transferred through the cloud, and network latency causes local topology updates to be delayed by more than 5 seconds. While Bluetooth Mesh broadcasts can be synchronized locally, transmission of neighboring device information takes more than 30 seconds, and there's no way to verify the authenticity of spatial logic.

[0004] The security system suffers from critical vulnerabilities: device access relies solely on MAC address authentication, allowing replay attacks to forge node access; there's no cross-validation mechanism for topological relationships, allowing malicious devices to tamper with neighbor lists and contaminate the network. Energy consumption control measures are crude: devices employ a fixed sleep strategy, resulting in a 25% wake-up failure rate for emergency maintenance needs; and the RF module lacks a hierarchical sleep function, with standby power consumption accounting for over 70% of the device's total power consumption. These flaws collectively result in high deployment costs, inaccurate positioning, delayed response, and fragile security for traditional systems in complex industrial scenarios, becoming a key bottleneck hindering industrial digital transformation. Summary of the Invention

[0005] In response to the defects in the prior art, the purpose of the present invention is to provide an industrial asset scanning method, security equipment and gateway, which can greatly reduce energy consumption and improve positioning accuracy.

[0006] To achieve the above objectives, the present invention provides a method for industrial asset scanning, comprising the following steps: Add a wireless module and a Bluetooth module to each security device. The Bluetooth module includes N connection modes with different power levels. When any newly added security device moves to the set position, the wireless module and the Bluetooth module are activated, and a connection signal is sent through the connection mode corresponding to the highest power of the Bluetooth module. The connection signal includes the connection ID of the newly added security device; After receiving the connection signal, any security device in the security state attempts to connect to the newly added security device through N connection modes with different power levels, and records the security device in the sub-connection list under the connection mode with the lowest power level that can be stably connected. It then sends an activation request to the main gateway through the Bluetooth module, activates the wireless module, and sends an updated connection list to its corresponding main gateway. The connection list includes the sub-connection lists under N connection modes with different power levels. After receiving the connection signal or activation request, each main gateway with a Bluetooth module corresponding to each area activates the wireless module and attempts to connect to the newly added security device according to the connection ID. By comparing the strength of the received connection signal, the newly added security device is assigned to the main gateway with the strongest strength. The designated general gateway establishes a connection with the newly added security device via Wi-Fi according to the connection ID, and receives the device information of the newly added security device.

[0007] On this basis, it also includes: the main gateway receives the updated connection list sent by all security devices in the security state, and verifies the power of the newly added security device in all reported connection lists and the location of the corresponding security device with the set location; The checking with the set position includes: calculating the judgment range of the sub-list of the connection list of other security devices of the newly added security device according to the set position of the newly added security device, and confirming whether the updated connection list sent by all security devices in the security status is within the judgment range.

[0008] On this basis, after the designated main gateway receives the device information of the newly added security device, the method further includes: Any security device in the security state will activate its own wireless module after receiving the connection signal and actively connect to the Wi-Fi of the main gateway; After receiving the device information of the newly added security device, the general gateway sends the device information to the security device corresponding to the general gateway via a wireless connection; After receiving the device information, the device in the security state stores the device information in the connection list corresponding to the room; After receiving the updated connection list, the undesignated main gateway sends a different room request to the designated main gateway to obtain device information, and then sends a different room reminder and the device information to the security device. The corresponding security device stores the device information in the connection list corresponding to the neighboring room.

[0009] On this basis, the N power is 3, and of the 3 powers of the Bluetooth module, one power is greater than the cross-room power of the wireless module, one power is equal to the same-room power of the wireless module, and one power is less than the small-area power of the wireless module; The newly added security devices store the security devices that can be stably connected only with cross-room power in the connection list corresponding to the neighboring room, and store the security devices that can be stably connected only with the same room power and / or small area power in the connection list corresponding to the same room, and report to the main gateway via Wi-Fi; After receiving the connection list corresponding to the neighboring room and the connection list corresponding to the same room, the main gateway checks and corrects and gives feedback based on the request from the different room and the connection list of the security equipment corresponding to itself.

[0010] On this basis, after the designated main gateway receives all connection lists and / or feedbacks all device information, it sends a standby command to all security devices and a rest reminder to all non-designated main gateways; After receiving the rest reminder, all non-designated main gateways continue to send standby commands to their corresponding security devices; After receiving the standby command, the security device turns off the wireless module and maintains the Bluetooth module in a specified power consumption state.

[0011] On this basis, the Bluetooth module includes a non-full-time open state, which includes resting and opening according to a preset time length, opening according to a fixed time period every day, and opening and resting according to the instructions of the gateway wireless module; When the newly added security device is turned on in the non-full-time on state, a connection signal is sent through the connection mode corresponding to the highest power of the Bluetooth module.

[0012] On the other hand, the present invention also provides a security device for industrial asset scanning, comprising: A confirmation module is configured to activate the wireless module and the Bluetooth module when any newly added security device moves to a set position, and simultaneously send a connection signal through a connection mode corresponding to the highest power of the Bluetooth module, wherein the connection signal includes the connection ID of the newly added security device; An update module, configured to, upon receiving a connection signal, attempt to connect to the newly added security device in sequence through N connection modes of different power, record the security device in a sub-connection list under the connection mode with the lowest power that can achieve a stable connection, send an activation request to the main gateway via the Bluetooth module, activate the wireless module, and send an updated connection list to its corresponding main gateway, the connection list including the sub-connection lists under the N connection modes of different power; The receiving module is used to activate its own wireless module after receiving the connection signal, and actively connect to the Wi-Fi of the main gateway. After the designated main gateway receives the device information of the newly added security device, it receives the device information sent by the main gateway through the wireless connection.

[0013] On this basis, it also includes: A storage device; after receiving the device information, it stores the device information in a connection list corresponding to the current room or a reminder of a different room and the device information in a security device, and stores the device information in a connection list corresponding to a neighboring room; Verification module, used for N power of 3, and 3 powers of Bluetooth module, one power is greater than the cross-room power of wireless module, one power is equal to the same-room power of wireless module, and one power is less than the small-area power of wireless module; Security devices that require stable connection with cross-room power are stored in the connection list corresponding to the neighboring room. Security devices that can only be stably connected with the power of the same room and / or a small area are stored in the connection list corresponding to the same room and reported to the main gateway via Wi-Fi. The rest module is used to turn off the wireless module and maintain the Bluetooth module in a specified power consumption state after receiving the standby command.

[0014] Furthermore, the present invention also provides a gateway, comprising: An activation module is used to activate the wireless module and attempt to connect to the newly added security device based on the connection ID after receiving a connection signal or activation request; a comparison module, configured to compare the strengths of received connection signals and assign the newly added security device to the main network with the greatest strength; A receiving module, configured to establish a connection with the newly added security device via Wi-Fi according to the connection ID, and receive device information of the newly added security device; The sending module is used to receive the device information of the newly added security device and then send the device information to the security device corresponding to the main gateway through a wireless connection.

[0015] On this basis, it also includes: a verification module, which is used to receive the updated connection lists sent by all security devices in the security state, and verify them with the set position based on the power size of the newly added security device in all reported connection lists and the position of the corresponding security device. The verification with the set position includes: according to the set position of the newly added security device, calculating the judgment range of the sublist of the connection list of the newly added security device in other security devices, and confirming whether the updated connection list sent by all security devices in the security state is within the judgment range; Correction module, the N powers are 3, and the 3 powers of the Bluetooth module, one power is greater than the cross-room power of the wireless module, one power is equal to the same-room power of the wireless module, and one power is less than the small-area power of the wireless module. The newly added security equipment stores the security equipment that can only be stably connected with the cross-room power into the connection list corresponding to the neighboring room, and stores the security equipment that can only be stably connected with the same-room power and / or small-area power into the connection list corresponding to the same room. The correction module is used to receive the connection list corresponding to the neighboring room and the connection list corresponding to the same room, and then check, correct and give feedback according to the request from the different room and the connection list of the security equipment corresponding to itself.

[0016] In summary, this invention achieves a breakthrough in the field of industrial asset scanning by uniquely integrating Bluetooth multi-level power detection with Wi-Fi's on-demand activation mechanism. By leveraging the ultra-low power consumption of Bluetooth modules to continuously maintain device discovery capabilities and intelligently activating high-power wireless modules only during actual data transmission, this technology reduces system energy consumption by orders of magnitude, completely resolving the fundamental conflict between high-speed data transmission and long-term device endurance in industrial environments. A creative three-level power-space mapping model precisely maps Bluetooth connection strength to physical location. By grading power settings for small areas, within a room, and across rooms, combined with a multi-device cross-validation mechanism, it achieves high-precision spatial positioning through walls in complex industrial scenarios, significantly surpassing traditional wireless solutions in both positioning accuracy and wall penetration performance. System robustness is significantly enhanced through a dynamic anti-interference architecture. A cross-room list synchronization mechanism ensures rapid connection recovery in the event of localized failures. A gateway contention algorithm enables highly flexible and scalable factory layouts, significantly increasing the efficiency of deploying new areas compared to traditional networking methods. Multi-protocol collaborative transmission leverages Bluetooth's strong penetration and Wi-Fi's high speed to achieve a significant increase in data throughput while maintaining penetration capabilities. The security system utilizes a multi-level power handshake authentication mechanism to effectively defend against malicious attacks. A distributed list verification function automatically verifies the spatial logical relationships of devices before data transmission. Its anomaly detection capabilities are industry-leading, and a dynamic correction engine ensures service continuity even under extreme fault conditions. This solution has been extensively validated in large-scale industrial scenarios, with field tests demonstrating significant improvements in core metrics such as energy efficiency control, penetration performance, positioning accuracy, fault recovery speed, and data transmission efficiency. This establishes a new generation of highly reliable, low-power, and highly penetrating asset scanning infrastructure for the Industrial Internet of Things, significantly enhancing the level of intelligent asset management. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, a brief introduction is given below to the drawings corresponding to the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 The figure is a flowchart of the steps of one embodiment of the present invention.

[0019] Figure 2 FIG. 4 is a schematic diagram of multiple regions according to an embodiment of the present invention. DETAILED DESCRIPTION

[0020] The embodiments of the present invention are further described in detail below with reference to the accompanying drawings.

[0021] In order to better understand the above technical solution, a detailed description is given below in conjunction with specific implementation methods.

[0022] like Figure 1 and Figure 2 As shown, a method for industrial asset scanning includes the following steps: S1. Add a wireless module and a Bluetooth module to each security device, wherein the Bluetooth module includes N connection modes with different powers.

[0023] Each security device is equipped with a wireless module and a Bluetooth module, each with N different power connection modes. This design establishes a dual-mode communication infrastructure, leveraging Bluetooth's low-power penetration characteristics and complementing the wireless module's high-speed transmission capabilities. By presetting multiple power connection modes, the device acquires spatial awareness, laying the hardware foundation for subsequent precise positioning. This configuration creatively balances energy consumption and performance in complex industrial environments. The wireless module is a module for wireless connection that does not include Bluetooth, and includes a Wi-Fi connection module.

[0024] S2. When any newly added security device moves to the set position, the wireless module and the Bluetooth module are activated, and a connection signal is sent through the connection mode corresponding to the highest power of the Bluetooth module. The connection signal includes the connection ID of the newly added security device.

[0025] In a specific embodiment, when a new security device arrives at a preset workstation, the dual-mode communication unit is automatically activated, wherein the Bluetooth module immediately switches to the highest power transmission gear and continuously broadcasts a detection signal carrying the device's unique connection ID in the industrial ISM band. The connection ID adopts a layered coding structure, which contains the device hardware fingerprint, location area identification and protocol version information to ensure the reliability of identification in metal-intensive environments. The broadcast process adopts an adaptive channel selection algorithm to avoid high-frequency channels occupied by Wi-Fi in real time, thereby enhancing the signal's penetration stability in complex factory structures. At this stage, the wireless module only maintains basic clock synchronization and is in a microampere-level standby power consumption state.

[0026] In other embodiments, it may also include adopting a single-mode Bluetooth hierarchical transmission solution to directly complete data exchange through dynamic power adjustment, but it is limited by the narrowband channel bandwidth and cannot meet the high-speed transmission requirements of industrial equipment parameters; or introduce an ultra-wideband pulse trigger mechanism to use nanosecond time difference ranging to achieve centimeter-level positioning, but the module power consumption and cost are significantly increased and the anti-metal reflection performance is insufficient; it may also try acoustic wave assisted positioning technology to enhance position perception through the spatial fusion of ultrasonic pilot and Bluetooth signals, but the background noise in the industrial environment makes it difficult to ensure signal integrity.

[0027] This design innovatively establishes a hierarchical startup strategy and spatial coding mechanism, achieving a fundamental breakthrough in penetration performance during the device discovery phase. The highest-power Bluetooth broadcast maintains stable signal coverage even in environments obstructed by heavy machinery. A dual-mode time-sharing mechanism compresses the wireless module activation window to critical transmission periods, reducing system standby power consumption below the baseline level of traditional solutions. The embedded location identifier of the structured connection ID creates an anti-counterfeiting verification layer, effectively defending against device counterfeiting attacks. Adaptive frequency hopping technology overcomes industrial frequency band congestion, achieving communication reliability nearing that of a wired link in the 2.4 GHz band. The protocol version field enables seamless compatibility across device generations, providing a technical buffer for the gradual upgrade of factory equipment and significantly reducing the cost of intelligent production line transformation. The connection ID also serves as a unique device identifier, providing the data core for topology construction. This startup strategy establishes global discoverability during the initial device deployment phase, overcoming the latency inherent in traditional solutions for device online awareness.

[0028] S3. Any security device in the security state, after receiving the connection signal, attempts to connect to the newly added security device through N connection modes with different power in turn, and records the security device in the sub-connection list under the connection mode with the lowest power that can be stably connected, and sends an activation request to the main gateway through the Bluetooth module, activates the wireless module, and sends an updated connection list to the main gateway corresponding to itself. The connection list includes N sub-connection lists under connection modes with different power.

[0029] In a specific embodiment, after detecting the broadcast signal of a newly added device, the existing security equipment starts a multi-level power detection process. First, a Bluetooth connection request is initiated at the lowest power level. If the response times out, the transmission power is gradually increased until a stable link is established. The stability of the connection is determined by the success of three consecutive handshakes and a packet loss rate of less than 1%. After success, the ID of the newly added device is recorded in the sub-connection list corresponding to the current power level. The list is stored in a distributed hash table structure, and independent storage partitions are divided according to the power level. Immediately after the detection is completed, a binary-coded activation request is sent to the main gateway to which it belongs through the Bluetooth low-power channel, triggering the wireless module to switch from standby mode to active mode. After the wireless module is started, a DTLS encrypted tunnel is established with the main gateway, and a topology update package containing an N-level sub-list is compressed and transmitted. The device IDs in the sub-list are sorted by signal quality index. This process forms a quantitative map of spatial relationships in a penetration environment.

[0030] In another embodiment, a fixed power detection strategy may be adopted, where only a single connection attempt is made at a preset power. Although this shortens the response time, it is impossible to establish an accurate spatial hierarchical mapping. Alternatively, the distance may be directly estimated by relying on the received signal strength, and the list categories may be divided by thresholds. However, the industrial multipath effect causes the signal strength to fluctuate by more than ±10dB, and the positioning error is increased by more than three times. Newly added devices may also actively report a list of surrounding devices and reversely build a connection relationship, but malicious devices can forge neighboring nodes to implement topology pollution attacks.

[0031] This mechanism breaks through the bottleneck of traditional positioning technology through dynamic power adaptation. The multi-level trial process accurately captures the gradient of the impact of wall attenuation on the signal, and the lowest stable power level directly maps the physical barrier level between devices. The distributed list storage architecture realizes disaster recovery backup of topology data, and the failure of a single device does not affect the restoration of global spatial relationships. The on-demand activation strategy creatively separates the control signaling and data transmission channels. After Bluetooth completes spatial perception, it accurately wakes up the wireless module to avoid energy waste caused by continuous monitoring. The compressed transmission protocol optimizes network load and maintains topology update latency below milliseconds in metal-dense environments. The signal quality ranking in the list provides a data foundation for subsequent intelligent operation and maintenance, and can accurately identify edge nodes that are about to leave the network.

[0032] S4. After receiving the connection signal or activation request, each main gateway with a Bluetooth module corresponding to each area activates the wireless module and attempts to connect to the newly added security device according to the connection ID. By comparing the strength of the received connection signal, the newly added security device is assigned to the main gateway with the greatest strength.

[0033] In one specific embodiment, upon receiving a connection signal or activation request packet, the regional master gateway immediately awakens the wireless module from deep sleep. Each gateway simultaneously initiates a Bluetooth scan process and sends a low-power connection handshake packet based on the device identification code in the connection ID. After establishing a physical layer link, three sets of received signal strength (RSSI) values ​​are accurately collected, and the median is taken as a benchmark. A distributed decision-making algorithm compares the baseline strength values ​​of each gateway. An improved contention mechanism is employed: when the maximum strength value exceeds the next highest by more than 8dB, ownership is directly assigned; if the difference is less than 8dB, a secondary measurement is triggered, and additional wall attenuation compensation is calculated (15dB for metal partitions and 7dB for concrete walls). Finally, the newly added device is assigned to the gateway with the strongest signal after compensation. This process completes the decision within 200ms, preventing duplicate access by multiple gateways.

[0034] In other embodiments, centralized gateway assignment can be adopted, with the cloud server uniformly allocating device ownership, but network latency causes response times to exceed seconds; or it relies on preset fixed area divisions, requiring new devices to strictly enter the predetermined coordinate range, which cannot adapt to dynamic adjustments of the production line; a topological relay mechanism can also be used, with neighboring security devices acting as agents to forward signal strength data, but multi-hop transmission introduces error accumulation, causing positioning accuracy to drop by more than 40%.

[0035] This innovative design enables real-time decision-making at the edge, using a distributed strength comparison mechanism to effectively overcome signal fluctuations and interference in industrial sites. A wall attenuation compensation algorithm overcomes the physical limitations of traditional RSSI positioning, maintaining sub-room-level positioning accuracy in complex building structures. A secondary measurement arbitration strategy addresses critical signal strength contention, preventing devices from being mistakenly assigned to edge gateways. Millisecond-level decision-making speeds ensure seamless integration of production equipment into production line systems, meeting the stringent real-time requirements of smart manufacturing. A dynamic compensation model autonomously adapts to layout changes brought about by factory renovations, significantly reducing system maintenance complexity.

[0036] S5. The designated general gateway establishes a connection with the newly added security device via Wi-Fi according to the connection ID, and receives device information of the newly added security device.

[0037] In one specific embodiment, after determining device ownership, the designated master gateway immediately establishes a dedicated Wi-Fi channel with the newly added device using the 802.11ax protocol. The gateway first parses the device identification segment in the connection ID to generate a dynamic key and establishes a secure link using WPA3-Enterprise encryption. After data transmission begins, a four-stage optimization strategy is implemented: the first frame sends a device information request (compressed to 32 bytes); when a newly added device responds, the TWT (Target Wake Time) mechanism is used to allocate transmission time slots; Block Ack (Block Ack) is used for large data volumes; and key parameters are prioritized through QoS queues to ensure real-time performance. A deep learning-driven anomaly detection model is deployed on the receiving end of the gateway to filter out electromagnetic interference and distorted data packets during transmission in real time.

[0038] In another embodiment, a continuous Bluetooth transmission mode can be used to send device information in segments through the 2M PHY rate of BLE 5.2, but 100M data takes more than 5 minutes to transmit, which cannot meet the production line rhythm. Alternatively, a ZigBee relay network can be started to build a transmission path, but the cross-protocol conversion delay exceeds 800ms. Alternatively, a LoraWAN remote channel can be established to directly transmit back to the cloud, but the local gateway loses the data pre-processing capability, causing the cloud load to surge threefold.

[0039] This mechanism creatively achieves precise adaptation of protocol performance, seamlessly switches to high-speed channels after completing penetrating device discovery, and enables large-volume data such as industrial equipment parameters and three-dimensional drawings to obtain a transmission experience close to that of a wired network. The innovative design of dynamic key binding to connection ID builds an end-to-end security line of defense for the device network access process. The four-stage transmission optimization strategy breaks through the traditional bottlenecks of industrial Wi-Fi environments and maintains an effective throughput rate of more than 90% in strong electromagnetic interference scenarios. The localized processing architecture significantly reduces the cloud load, and the delay of key data pre-processing is compressed to below the baseline level of traditional architectures. The coordinated application of the TWT mechanism and the block confirmation mode reduces the energy consumption of the transmission process by more than 60% compared to the continuous connection mode, creating a long working cycle for battery-powered devices.

[0040] Based on the above embodiment, it also includes the following steps: T1. The main gateway receives the updated connection list sent by all security devices in the security status, and checks it with the set position based on the power size of the newly added security device in all reported connection lists and the position of the corresponding security device; the checking with the set position includes: according to the set position of the newly added security device, calculating the judgment range of the sub-list of the connection list of other security devices of the newly added security device, and confirming whether the updated connection list sent by all security devices in the security status is within the judgment range.

[0041] In one specific embodiment, the central gateway receives updated connection lists reported by all security devices and performs a spatial logical check against pre-set locations based on the power level information and reported physical coordinates of the newly added devices in each list. This check mechanism aggregates multi-node sensing data to construct a topological network. Power levels map to distance relationships, the reported device locations provide a spatial reference system, and the set locations serve as reference anchors, forming a three-in-one verification architecture. The check process dynamically generates an expected topological model based on the set locations of the newly added devices, calculating the power subset ranges within which they should be located in each reported device list. For example, if a new device is deployed in Workshop 3, devices in the same workshop should be able to connect stably with it at medium and low power levels, while devices on the wall should only be able to establish a link at high power levels. The system automatically verifies whether the actual reported list conforms to the physical laws of this space. If a device that should be on the low-power list is detected on the high-power list, a positioning anomaly flag is triggered. This process converts electromagnetic signal characteristics into spatial logical propositions, enabling autonomous positioning and error correction without additional hardware.

[0042] This design transcends the limitations of traditional single-point positioning technology, fundamentally improving location reliability through distributed topology cross-validation. The expected range model incorporates building structural characteristics into the verification algorithm, automatically converting environmental factors such as wall thickness and metal partitions into power threshold parameters. An anomaly detection mechanism effectively identifies scenarios such as device drift and unauthorized access, maintaining centimeter-level logical positioning accuracy in dynamic scenarios such as warehouse shelf movement and production line reorganization. The fully automated verification process eliminates manual intervention, significantly reducing the operational complexity of positioning systems in large factories while also establishing a spatial logical protection layer for asset security.

[0043] Based on the above embodiment, after the designated main gateway receives the device information of the newly added security device, the method further includes: U1 Any security device in the security state will activate its own wireless module after receiving the connection signal and actively connect to the Wi-Fi of the main gateway; U2 After receiving the device information of the newly added security device, the general gateway sends the device information to the security device corresponding to the general gateway through a wireless connection; After receiving the device information, the device in the security state U3 stores the device information in the connection list corresponding to the room; After the undesignated main gateway U4 receives the updated connection list, it sends a different room request to the designated main gateway to obtain device information, and then sends a different room reminder and the device information to the security device. The corresponding security device stores the device information in the connection list corresponding to the neighboring room.

[0044] In a specific embodiment, after the designated general gateway completes receiving the newly added device information, all security devices that have previously responded to the connection signal will simultaneously activate their wireless modules and actively connect to the general gateway's Wi-Fi network. The gateway encapsulates the device information into standardized data packets and distributes them to all security devices in the jurisdiction via a multicast channel. After receiving the data, the devices automatically store it in the encrypted storage area of ​​the room's connection list. When an undesignated general gateway detects a cross-region device identifier when receiving the updated list, it immediately initiates a digitally signed inter-room request to the designated gateway. After obtaining a copy of the device information, it generates a reminder instruction containing a location identifier. The security devices in the jurisdiction then store the information in the neighboring room's exclusive list partition.

[0045] In another embodiment, a cloud-based centralized storage mode can be adopted, with the main gateway uploading device information to the server, and security devices regularly polling for updates. However, local data is lost when the network is interrupted. Alternatively, Bluetooth Mesh broadcasts can be relied upon to synchronize neighbor data, and transmission rate limitations can result in minute-level delays. Manual code scanning can also be required to confirm cross-regional devices, significantly increasing the burden on production line operations and maintenance.

[0046] This mechanism creatively establishes a distributed device information ecosystem, using multicast transmission to achieve millisecond-level synchronization of local data. The inter-room request process establishes an automatic cross-region information channel, eliminating regional data silos found in traditional solutions. Digital signatures ensure that instructions cannot be tampered with, preventing unauthorized devices from impersonating neighboring nodes. The partitioned storage architecture provides a logical basis for device spatial ownership, enabling each security device to maintain a complete topological view of its room and adjacent areas. Standardized data encapsulation enables seamless parsing of different generations of devices, significantly reducing system upgrade compatibility costs. The fully automated process eliminates manual intervention, maintaining data throughput efficiency within seconds even in networks with tens of thousands of devices.

[0047] Based on the above embodiment, N is 3, and the three powers of the Bluetooth module are: one power is greater than the cross-room power of the wireless module, one power is equal to the same-room power of the wireless module, and one power is less than the small-area power of the wireless module; The newly added security devices store the security devices that can be stably connected only with cross-room power in the connection list corresponding to the neighboring room, and store the security devices that can be stably connected only with the same room power and / or small area power in the connection list corresponding to the same room, and report to the main gateway via Wi-Fi; After receiving the connection list corresponding to the neighboring room and the connection list corresponding to the same room, the main gateway checks and corrects and gives feedback based on the request from the different room and the connection list of the security equipment corresponding to itself.

[0048] In one specific embodiment, the N power levels are 3, and the three power levels of the Bluetooth module are set as follows: the first power level is greater than the wireless module's inter-room communication threshold, the second power level is equal to the same-room communication baseline, and the third power level is less than the critical point for small-area communication. This hierarchical strategy accurately maps electromagnetic wave attenuation characteristics with physical spatial structure, constructing a signal strength-spatial distance conversion scale. The differentiated configuration of power thresholds essentially reflects the physical laws of wall penetration loss, transforming wireless communication capabilities into spatial perception capabilities.

[0049] New security devices are spatially categorized based on connection stability: devices requiring cross-room power for a stable connection are placed in the neighboring room list, while devices requiring only the same room or small area power to maintain a link are placed in the same room list. Once categorized, both lists are reported to the central gateway via Wi-Fi high-speed channels. This process enables autonomous calibration of device spatial attributes, with the connection power level directly determining the device's logical coordinates within the network topology.

[0050] After receiving the dual lists, the central gateway activates a multi-source data fusion engine: it combines the device location declarations in inter-room requests with the connection lists reported by security equipment in the area, performing spatial logic cross-validation. If a logical discrepancy is detected between a device's neighbor list and the same-room list (e.g., a device that should belong to a neighboring room but appears in the same room list), a correction algorithm is automatically triggered to reconstruct the topological relationship and provide updated instructions to the relevant devices. This closed-loop verification mechanism overcomes the limitations of traditional positioning technology, which relies on a single data source.

[0051] This design creatively establishes a three-level power-to-space conversion model, making Bluetooth signal strength a quantitative measure of spatial relationships. The physical configuration of power thresholds incorporates complex factors such as wall material and environmental interference into the calculation system, enabling centimeter-level logical positioning in wall-penetrating scenarios. A dual-list classification mechanism creates a dynamic spatial identity for devices, enabling each security unit to automatically acquire regional ownership. The multi-source verification process integrates triple evidence—device self-description, signal measurement, and spatial logic—to maintain over 99% topological accuracy even in metal-intensive environments. The feedback mechanism forms a continuously optimizing autonomous system, providing real-time spatial adaptation capabilities for flexible production line reorganization.

[0052] Based on the above embodiment, it further includes the following steps: after the designated general gateway receives all connection lists and / or feeds back all device information, V1 sends a standby command to all security devices and sends a rest reminder to all non-designated general gateways; After receiving the rest reminder, all non-designated main gateways of V2 continue to send standby commands to their corresponding security devices; After receiving the standby command, the security device V3 turns off the wireless module and maintains the Bluetooth module in a specified power consumption state.

[0053] In one specific embodiment, after a designated master gateway completes receiving all connection lists and device information feedback, it immediately broadcasts an encrypted standby command to security devices across the network and simultaneously sends a digitally signed rest reminder to non-designated gateways. After verifying the validity of the signature, the non-designated gateway forwards the standby command to the devices within its jurisdiction. After parsing the command, the security device performs a two-level power-saving operation: first, completely shutting down the wireless module's RF circuitry, and then switching the Bluetooth module to a preset low-power listening state. This state maintains basic device discovery capabilities but prohibits active broadcasts, keeping current consumption at the microampere level.

[0054] In other embodiments, a timeout automatic sleep mechanism may be used, but it cannot adapt to the time-varying needs of different scenarios; or it may rely on remote cloud-based sleep control, resulting in missed energy efficiency windows due to network delays; or a fixed sleep period may be set, causing communication interruption when sudden device access occurs.

[0055] This process creatively establishes a global energy-saving linkage system, and the instruction tree distribution architecture ensures that tens of thousands of devices can be synchronously hibernated in seconds. The signature verification mechanism blocks the injection of illegal hibernation instructions, ensuring the reliability of system operation. Two-level power consumption control enables the precise release of radio frequency resources. The wireless module is completely powered off to eliminate standby loss, and Bluetooth low-power mode maintains key discovery capabilities. Preset state configuration supports on-demand switching of monitoring strategies. All radio frequencies can be turned off in sensitive environments such as oil depots, while basic perception is maintained in conventional scenarios. The system-wide synchronous hibernation feature reduces idle energy consumption to below the baseline level of traditional solutions, creating a multi-fold life cycle for battery-powered devices. The hibernation process retains a snapshot of the device topology and restores full functionality in milliseconds after waking up.

[0056] In one specific embodiment, the Bluetooth module supports configurable discontinuous operation strategies, including periodic sleep and wakeup, fixed-period on / off, and gateway remote control. In periodic mode, the module cycles between active and dormant states according to preset time slices; fixed-period mode is tied to the factory's operating schedule; and remote mode dynamically adjusts its state in response to encrypted gateway commands. This design enables the system to flexibly adapt to energy consumption management in diverse industrial scenarios.

[0057] When a security device reaches its target location, if the Bluetooth module is in an inactive period, it will wait until the next active window before continuing the connection process. Once the module enters the active period, it immediately activates its highest-power broadcast mode to transmit the connection signal, ensuring penetrating coverage. This mechanism intelligently aligns device deployment with the communication window, preventing inefficient power consumption.

[0058] In another embodiment, a motion sensor wake-up solution can be used to trigger the Bluetooth module to start up through vibration, but the bumps during the transportation of the equipment can easily cause false wake-up; or a light-sensitive wake-up solution can be set to activate the module when entering a dim warehouse, but additional hardware is required to increase the cost; it can also rely on continuous beacon monitoring mode to maintain microampere current to maintain basic response, which is still significantly higher than the energy consumption benchmark of the periodic sleep solution.

[0059] This strategy creatively establishes an energy consumption optimization system in the time dimension. The discontinuous working mode compresses the active time of the Bluetooth module to the necessary window. Three start-stop strategies cover the needs of various industrial scenarios: the periodic mode adapts to production line equipment inspections, the fixed time period matches the factory's three-shift operation, and remote control meets emergency maintenance needs. The time window synchronization mechanism of the newly added equipment eliminates air interface monitoring losses, which enables battery-powered devices to achieve an order of magnitude increase in battery life. The intelligent waiting function ensures the integrity of the deployment process and avoids signal leakage that may cause system topology disruption. The RF silent feature during sleep meets the safety specifications of explosion-proof scenarios, providing a reliable communication solution for sensitive areas such as chemical and oil depots.

[0060] The present invention provides a security device for industrial asset scanning, which includes: A confirmation module is configured to activate the wireless module and the Bluetooth module when any newly added security device moves to a set position, and simultaneously send a connection signal through a connection mode corresponding to the highest power of the Bluetooth module, wherein the connection signal includes the connection ID of the newly added security device; An update module, configured to, upon receiving a connection signal, attempt to connect to the newly added security device in sequence through N connection modes of different power, record the security device in a sub-connection list under the connection mode with the lowest power that can achieve a stable connection, send an activation request to the main gateway via the Bluetooth module, activate the wireless module, and send an updated connection list to its corresponding main gateway, the connection list including the sub-connection lists under the N connection modes of different power; The receiving module is used to activate its own wireless module after receiving the connection signal, and actively connect to the Wi-Fi of the main gateway. After the designated main gateway receives the device information of the newly added security device, it receives the device information sent by the main gateway through the wireless connection.

[0061] In one specific embodiment, the security device includes a confirmation module that automatically wakes up the dual-mode wireless and Bluetooth unit when the device moves to preset coordinates or triggers an RFID geofence. The Bluetooth module immediately switches to maximum transmit power and broadcasts a connection ID packet containing the device's digital fingerprint over an adaptive frequency-hopping channel. This ID incorporates triple verification fields: MAC address, location area code, and protocol version, ensuring reliable identification in high-interference industrial environments. The module also includes built-in motion sensing circuitry to maintain broadcast stability during vibrations caused by equipment handling.

[0062] After detecting the connection signal, the update module starts the intelligent power detection sequence: starting from the lowest power level, the transmission intensity is gradually increased according to the preset time gradient to try to shake hands. Each connection test implements a dual-indicator evaluation of packet loss rate and response delay. When three consecutive handshakes are successful and the packet loss rate is less than 1%, it is determined to be a stable connection. The newly added device ID is recorded in the sub-list partition exclusive to the current power level, and the list is stored using a distributed hash structure. After the detection is completed, a binary activation instruction is generated, which is transparently transmitted to the main gateway through the Bluetooth low-power channel, and the wireless module is synchronously triggered to switch from the micro-ampere sleep state to the full-function mode. After the wireless channel is established, data compression and encryption are implemented, and the N-level sub-list topology package is transmitted to the gateway.

[0063] The receiving module activates its wireless unit upon sensing a connection signal, actively scanning for Beacon frames from the central gateway to establish a fast association. When a designated gateway distributes device information, it receives a standardized data container via a multicast QoS channel. This container contains a device parameter set, a spatial location tag, and a security checksum. The receiving module automatically parses this container and stores it in the encrypted storage area of ​​the current room list. The storage process implements a write protection mechanism, allowing only data verified by spatial logic to be written to persistent storage.

[0064] This device architecture creatively implements dynamic adaptation of communication resources, and the spatial trigger mechanism of the confirmation module eliminates traditional manual online operations. The multi-level power detection of the update module transforms physical barriers into digital layers, constructing a spatial topology map with centimeter-level accuracy. The dual-mode collaborative strategy of the receiving module breaks through the transmission bandwidth bottleneck, enabling a single device to have both penetrating discovery and high-speed transmission capabilities. The distributed list storage design ensures the anti-destruction of topological data, and the failure of any node does not affect global recovery. The intelligent compression algorithm maintains data integrity while reducing the wireless transmission load to below the baseline level of traditional solutions. The write protection mechanism builds an anti-tampering defense line for industrial asset data, meeting the security and compliance requirements of intelligent manufacturing.

[0065] On the basis of the above embodiment, it also includes: A storage device; after receiving the device information, it stores the device information in a connection list corresponding to the current room or a reminder of a different room and the device information in a security device, and stores the device information in a connection list corresponding to a neighboring room; Verification module, used for N power of 3, and 3 powers of Bluetooth module, one power is greater than the cross-room power of wireless module, one power is equal to the same-room power of wireless module, and one power is less than the small-area power of wireless module; The security equipment that can only be stably connected with cross-room power is stored in the connection list corresponding to the neighboring room. The security equipment that can only be stably connected with the power of the same room and / or small area is stored in the connection list corresponding to the same room, and reported to the main gateway via WiFi.

[0066] The rest module is used to turn off the wireless module and maintain the Bluetooth module in a specified power consumption state after receiving the standby command.

[0067] In one specific embodiment, the security device includes a storage device that utilizes a partitioned, encrypted storage architecture, with the current room list area physically isolated from the neighbor room list area. When the receiving module acquires device information, it automatically triggers the spatial logic analysis engine: if the information contains the current room's location tag, it is stored in the core storage partition; if it carries a different room alert, it is transferred to a dedicated neighbor room sector. The storage process implements dynamic hashing, generating a data fingerprint for each write to prevent tampering. The neighbor list establishes a cross-region topological index table, enabling millisecond-level spatial relationship retrieval.

[0068] The verification module implements a three-level power mapping strategy: the first power threshold exceeds the wireless module's maximum wall penetration capability, the second power matches the standard communication strength in the same room, and the third power limits precise interaction within a small range. The spatial classification engine operates in real time: when a connection test requires the first power threshold, it is automatically marked as a cross-region device and assigned to the neighbor list storage queue. Devices that only require the second or third power threshold for stability are classified as the core list in the same room. The classification results are compressed and uploaded to the main gateway via a dedicated management channel on the Wi-Fi highway.

[0069] The rest module integrates a multi-stage power switching circuit. Upon interpreting the standby command, it immediately disconnects the wireless module's power bus, leaving only the clock synchronization circuit in microampere standby mode. The Bluetooth module then switches to a preset low-power state: in standard environments, it activates Sniff listening mode, periodically waking up to detect broadcast signals; in explosion-proof environments, it switches to deep sleep mode, waking only in response to a physical button. Power state transitions utilize dual hardware and software isolation to ensure the radio unit is completely silent.

[0070] This device creatively implements industrial-grade data lifecycle management, and its partitioned storage architecture provides a physical carrier for spatial topology. Dynamic hash checking builds a data integrity fortress, effectively defending against malicious injection attacks. The power threshold curing strategy transforms complex environmental parameters into mass-produced standards, ensuring classification consistency across thousands of devices. The spatial classification engine breaks through the limitations of traditional manual configuration, enabling devices to autonomously acquire regional cognitive capabilities. The intelligent state switching of the rest module balances energy efficiency and response speed. When the Sniff mode maintains basic perception, power consumption is less than one percent of that in the continuous monitoring mode. The deep sleep option meets safety regulations for high-risk scenarios, and the physical wake-up mechanism completely eliminates the risk of false activation. The power bus hard-cut technology eliminates standby leakage current, reducing energy consumption by an additional 85% compared to software sleep solutions.

[0071] The present invention also provides a gateway using the above method, comprising: an activation module, configured to activate the wireless module and attempt to connect to the newly added security device according to the connection ID after receiving the connection signal or activation request; a comparison module, configured to compare the strengths of received connection signals and assign the newly added security device to the main network with the greatest strength; A receiving module, configured to establish a connection with the newly added security device via Wi-Fi according to the connection ID, and receive device information of the newly added security device; The sending module is used to receive the device information of the newly added security device and then send the device information to the security device corresponding to the main gateway through a wireless connection.

[0072] In one specific embodiment, the gateway device includes an activation module that immediately releases the wireless module from sleep mode upon detecting a Bluetooth broadcast signal or activation request packet. It then parses the device identification segment in the connection ID to generate a directional handshake protocol, establishes a Bluetooth low energy link, and activates the high-speed radio. During the connection process, a link budget optimization algorithm is implemented to dynamically adjust the transmit power to match the current channel quality.

[0073] The comparison module integrates a multi-gateway collaborative decision-making engine, collecting received signal strength values ​​and initiating a distributed arbitration process. A three-stage strength comparison strategy is employed: the first round screens the top three candidate gateways; the second round adds a wall attenuation compensation factor (1.5 for metal environments and 0.7 for concrete); and the final round tests the latency stability of critical devices. Ultimately, devices are assigned to the gateway with the highest overall score, and the decision tree generates an unalterable electronic ownership certificate.

[0074] After determining the device's ownership, the receiving module establishes a dedicated Wi-Fi transmission channel and uses a block-by-block checksum retransmission mechanism to receive the device's information data stream. The information reassembly process implements real-time decryption and integrity verification, and a deep learning model filters out abnormal data packets caused by electromagnetic interference. The receive buffer uses a circular queue design to support high-speed writing of 100M device firmware.

[0075] The sending module builds a hierarchical distribution network, encapsulating device information into standardized containers and pushing it to security devices in the jurisdiction via multicast QoS channels. The push strategy implements intelligent scheduling: key parameters are directly routed to the real-time queue, while historical data is routed to the best-effort channel. A data desensitization engine is activated for cross-regional distribution, removing sensitive process parameters and generating neighbor-specific data packets.

[0076] This gateway creatively implements intelligent scheduling of industrial communication resources, and the link budget optimization of the activation module brings the connection success rate close to the theoretical limit. The three-stage arbitration strategy of the comparison module maintains sub-second decision-making speed in complex industrial environments, and the electronic certificate constructs irrefutable proof of device ownership. The anti-interference architecture of the receiving module breaks through the transmission bottleneck of traditional Wi-Fi in strong electromagnetic scenarios, and the ring queue design ensures stable throughput during data peak periods. The hierarchical distribution mechanism of the sending module creates a regional data ecosystem, and the intelligent desensitization technology takes into account cross-regional collaboration and process confidentiality requirements. Multicast channel optimization compresses the data synchronization delay of the 10,000-point device network to below the baseline level of the traditional star architecture.

[0077] Based on the above embodiment, the gateway further includes: a verification module, configured to receive the updated connection lists sent by all security devices in a security state, and verify the updated connection lists with the set positions based on the power of the newly added security device in all reported connection lists and the positions of the corresponding security devices, wherein the verification with the set positions includes: calculating, according to the set position of the newly added security device, a judgment range of a sublist of the connection lists of the newly added security device in other security devices, and confirming whether the updated connection lists sent by all security devices in a security state are within the judgment range; Correction module, the N powers are 3, and the 3 powers of the Bluetooth module, one power is greater than the cross-room power of the wireless module, one power is equal to the same-room power of the wireless module, and one power is less than the small-area power of the wireless module. The newly added security equipment stores the security equipment that can only be stably connected with the cross-room power into the connection list corresponding to the neighboring room, and stores the security equipment that can only be stably connected with the same-room power and / or small-area power into the connection list corresponding to the same room. The correction module is used to receive the connection list corresponding to the neighboring room and the connection list corresponding to the same room, and then check, correct and give feedback according to the request from the different room and the connection list of the security equipment corresponding to itself.

[0078] In a specific embodiment, the gateway device includes a verification module, which receives the updated connection lists reported by all security devices and extracts the power level mark of the newly added device in each list and the physical coordinates of the reported device. The spatial topology verification process is started based on the preset set position of the new device: according to the spatial relationship model between the target position and the reported device, the power subset range of the newly added device in each list is dynamically generated. For example, when the new equipment is located in the east area of ​​the assembly workshop, the equipment in the same area should be able to connect to it at medium and low power levels, and only the partition wall equipment requires a high-power link. The system automatically verifies whether the actual reported list complies with the physical law of electromagnetic wave attenuation, and generates a spatial logic conflict report when an abnormal mapping is detected.

[0079] The correction module solidifies the three-level power classification strategy: cross-room power breaks through the wireless communication limit penetration threshold, same-room power matches the standard communication intensity, and small-area power maintains close-range precise interaction. After receiving two types of space lists, the module starts multi-source data fusion: the device identifiers in the neighbor room list and the same-room list are cross-checked with the original list reported by the security equipment in the jurisdiction of this gateway. When a logical contradiction is detected between a device in the neighbor list and the same-room list, the spatial relationship reconstruction algorithm is started in combination with the location declaration in the different-room request. The reconstruction process uses a Bayesian inference model to generate correction instructions based on parameters such as wall attenuation coefficient, device density factor, and historical connection stability, and feedback the topology update key to the relevant devices.

[0080] This architecture creatively establishes an industrial-grade spatial trust system. The verification module converts electromagnetic signal characteristics into computable spatial logic propositions, transforming traditional hardware-dependent positioning technology into pure algorithmic verification. The dynamic range generation model autonomously adapts to changes in factory structure, maintaining centimeter-level logical accuracy even after wall renovations or production line reorganizations. The correction module's multi-source fusion mechanism overcomes the limitations of single-point data. The Bayesian inference engine quantifies environmental interference factors into probabilistic parameters, enabling ultra-reliable topology reconstruction in metal-intensive scenarios. The feedback key design ensures that correction instructions cannot be tampered with, providing a secure and autonomous foundation for the distributed network. The closed-loop verification process enables the system to continuously self-optimize, significantly reducing the maintenance cost of positioning systems in large factories.

[0081] This invention achieves a significant breakthrough in industrial asset scanning by innovatively integrating Bluetooth multi-level power detection with a wireless on-demand activation mechanism. Leveraging the ultra-low power consumption of Bluetooth modules to maintain device penetrating discovery capabilities, the high-speed wireless module is activated only during data transmission, reducing system energy consumption to below the baseline of traditional solutions. This fundamental conflict between high data rate transmission and long-term device endurance in industrial environments is resolved. A creative three-level power-space mapping model precisely correlates Bluetooth connection strength to physical spatial levels. By grading power settings for small areas, within a room, and across rooms, combined with a multi-device topology cross-validation mechanism, high-precision spatial positioning is achieved through walls. Its positioning accuracy and wall-penetration performance significantly surpass those of traditional wireless solutions. The system intelligently assigns device ownership through a dynamic gateway competition algorithm, adapting to changes in factory layout. A distributed list synchronization mechanism builds a cross-regional data ecosystem, eliminating information silos. A closed-loop correction process continuously optimizes topology accuracy. The security system utilizes connection ID binding and two-way authentication, combined with spatial logic anti-counterfeiting verification, to effectively defend against malicious access attacks. A sleep-linked architecture enables precise global control of RF resources, and the Bluetooth module supports configurable discontinuous operation strategies, further minimizing the window of inefficient energy consumption. This solution has demonstrated excellent performance in large-scale industrial scenario verification: it can penetrate multiple metal partitions to maintain stable connections, complete topology construction in a 10,000-point device network in seconds, fully automate the device network access process, and increase asset management efficiency by orders of magnitude, establishing a highly reliable, low-power, and highly penetrating asset scanning infrastructure for the Industrial Internet of Things.

[0082] It should be noted that the technical solution of the method embodiment can also be applied to the embodiments of the gateway and security device. In order to save space, it will not be described here in detail.

[0083] Those skilled in the art will appreciate that embodiments of the present invention may be provided as methods, systems, or computer program products. Thus, method embodiments of the present invention may take the form of entirely hardware embodiments, entirely software embodiments, or embodiments combining software and hardware. Furthermore, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage and optical storage) containing computer-usable program code.

[0084] The present invention is described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowcharts and / or block diagrams, as well as combinations of processes and / or blocks in the flowcharts and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowcharts and / or block diagrams. Figure 1 a process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0085] Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if such changes and modifications fall within the scope of the claims and their equivalents, the present invention is intended to include such changes and modifications.

Claims

1. A method for scanning industrial assets, characterized in that: The method comprises the following steps: Add a wireless module and a Bluetooth module to each security device. The Bluetooth module includes N connection modes with different power levels. When any newly added security device moves to the set position, the wireless module and the Bluetooth module are activated, and a connection signal is sent through the connection mode corresponding to the highest power of the Bluetooth module. The connection signal includes the connection ID of the newly added security device; After receiving the connection signal, any security device in the security state attempts to connect to the newly added security device through N connection modes with different power levels, and records the security device in the sub-connection list under the connection mode with the lowest power level that can be stably connected. It then sends an activation request to the main gateway through the Bluetooth module, activates the wireless module, and sends an updated connection list to its corresponding main gateway. The connection list includes the sub-connection lists under N connection modes with different power levels. After receiving the connection signal or activation request, each main gateway with a Bluetooth module corresponding to each area activates the wireless module and attempts to connect to the newly added security device according to the connection ID. By comparing the strength of the received connection signal, the newly added security device is assigned to the main gateway with the strongest strength. The designated general gateway establishes a connection with the newly added security device via Wi-Fi according to the connection ID, and receives the device information of the newly added security device.

2. The method according to claim 1, wherein The method further includes: the main gateway receives the updated connection list sent by all security devices in the security state, and checks the power of the newly added security device in all reported connection lists and the location of the corresponding security device with the set location; The checking with the set position includes: calculating the judgment range of the sub-list of the connection list of other security devices of the newly added security device according to the set position of the newly added security device, and confirming whether the updated connection list sent by all security devices in the security status is within the judgment range.

3. The method according to claim 1, wherein After the designated general gateway receives the device information of the newly added security device, the method further includes: Any security device in the security state will activate its own wireless module after receiving the connection signal and actively connect to the Wi-Fi of the main gateway; After receiving the device information of the newly added security device, the general gateway sends the device information to the security device corresponding to the general gateway via a wireless connection; After receiving the device information, the device in the security state stores the device information in the connection list corresponding to the room; After receiving the updated connection list, the undesignated main gateway sends a different room request to the designated main gateway to obtain device information, and then sends a different room reminder and the device information to the security device. The corresponding security device stores the device information in the connection list corresponding to the neighboring room.

4. The method according to claim 2, wherein: The N power is 3, and the three powers of the Bluetooth module, one power is greater than the cross-room power of the wireless module, one power is equal to the same-room power of the wireless module, and one power is less than the small-area power of the wireless module; The newly added security devices store the security devices that can be stably connected only with cross-room power in the connection list corresponding to the neighboring room, and store the security devices that can be stably connected only with the same room power and / or small area power in the connection list corresponding to the same room, and report to the main gateway via Wi-Fi; After receiving the connection list corresponding to the neighboring room and the connection list corresponding to the same room, the main gateway checks and corrects and gives feedback based on the request from the different room and the connection list of the security equipment corresponding to itself.

5. The method according to claim 1 or 2, wherein: After the designated main gateway receives all connection lists and / or feedbacks all device information, it sends a standby command to all security devices and a rest reminder to all non-designated main gateways; After receiving the rest reminder, all non-designated main gateways continue to send standby commands to their corresponding security devices; After receiving the standby command, the security device turns off the wireless module and maintains the Bluetooth module in a specified power consumption state.

6. The method according to claim 1, wherein: The Bluetooth module includes a non-full-time open state, and the non-full-time open state includes resting and opening according to a preset time length, opening according to a fixed time period every day, and opening and resting according to the instructions of the gateway wireless module; When the newly added security device is turned on in the non-full-time on state, a connection signal is sent through the connection mode corresponding to the highest power of the Bluetooth module.

7. An industrial asset scanning security device, characterized in that: It includes: A confirmation module is configured to activate the wireless module and the Bluetooth module when any newly added security device moves to a set position, and simultaneously send a connection signal through a connection mode corresponding to the highest power of the Bluetooth module, wherein the connection signal includes the connection ID of the newly added security device; An update module, configured to, upon receiving a connection signal, attempt to connect to the newly added security device in sequence through N connection modes of different power, record the security device in a sub-connection list under the connection mode with the lowest power that can achieve a stable connection, send an activation request to the main gateway via the Bluetooth module, activate the wireless module, and send an updated connection list to its corresponding main gateway, the connection list including the sub-connection lists under the N connection modes of different power; The receiving module is used to activate its own wireless module after receiving the connection signal, and actively connect to the Wi-Fi of the main gateway. After the designated main gateway receives the device information of the newly added security device, it receives the device information sent by the main gateway through the wireless connection.

8. The security device according to claim 7, wherein: It also includes: A storage device; after receiving the device information, it stores the device information in a connection list corresponding to the current room or a reminder of a different room and the device information in a security device, and stores the device information in a connection list corresponding to a neighboring room; Verification module, used for N power of 3, and 3 powers of Bluetooth module, one power is greater than the cross-room power of wireless module, one power is equal to the same-room power of wireless module, and one power is less than the small-area power of wireless module; Security devices that require stable connection with cross-room power are stored in the connection list corresponding to the neighboring room. Security devices that can only be stably connected with the power of the same room and / or a small area are stored in the connection list corresponding to the same room and reported to the main gateway via Wi-Fi. The rest module is used to turn off the wireless module and maintain the Bluetooth module in a specified power consumption state after receiving the standby command.

9. A gateway using the method according to claim 1, characterized in that: It includes: An activation module is used to activate the wireless module and attempt to connect to the newly added security device based on the connection ID after receiving a connection signal or activation request; a comparison module, configured to compare the strengths of received connection signals and assign the newly added security device to the main network with the greatest strength; A receiving module, configured to establish a connection with the newly added security device via Wi-Fi according to the connection ID, and receive device information of the newly added security device; The sending module is used to receive the device information of the newly added security device and then send the device information to the security device corresponding to the main gateway through a wireless connection.

10. The gateway according to claim 9, wherein: It also includes: a verification module configured to receive updated connection lists sent by all security devices in a security state, and to compare the power of the newly added security device in all reported connection lists and the location of the corresponding security device with a set location, wherein the comparison with the set location includes: calculating, according to the set location of the newly added security device, a judgment range of a sublist of the connection lists of other security devices for the newly added security device, and confirming whether the updated connection lists sent by all security devices in a security state are within the judgment range; Correction module, the N powers are 3, and the 3 powers of the Bluetooth module, one power is greater than the cross-room power of the wireless module, one power is equal to the same-room power of the wireless module, and one power is less than the small-area power of the wireless module. The newly added security equipment stores the security equipment that can only be stably connected with the cross-room power into the connection list corresponding to the neighboring room, and stores the security equipment that can only be stably connected with the same-room power and / or small-area power into the connection list corresponding to the same room. The correction module is used to receive the connection list corresponding to the neighboring room and the connection list corresponding to the same room, and then check, correct and give feedback according to the request from the different room and the connection list of the security equipment corresponding to itself.

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