Industrial asset scanning methods, security equipment, and gateways

Abstract

This invention discloses a method, security device, and gateway for industrial asset scanning, comprising the following steps: adding a wireless module and a Bluetooth module to each security device; when any newly added security device moves to a set location, activating the wireless module and Bluetooth module, and simultaneously sending a connection signal through the connection mode corresponding to the highest power of the Bluetooth module; after receiving the connection signal, the security device attempts to connect to the newly added security device, records the security device in a sub-connection list, 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; after receiving the connection signal or activation request, the main gateway activates the wireless module and attempts to connect to the newly added security device according to the connection ID, and receives the device information of the newly added security device. This invention can greatly reduce energy consumption and improve positioning accuracy.

Description

Technical Field

[0001] This invention relates to the field of industrial Internet of Things (IoT) technology, and in particular to an industrial asset scanning system and its working method based on Bluetooth and wireless communication collaboration, which is suitable for equipment positioning and data management in environments such as factories and warehouses. Background Technology

[0002] Modern industrial asset management commonly uses 5G networks for real-time connectivity and assesses equipment status based on connection information. However, this approach has the following limitations:

[0003] Industrial asset scanning technology faces multiple systemic challenges. Traditional solutions rely on a single wireless communication module operating continuously, failing to balance penetration and energy efficiency. If Wi-Fi is used for positioning and data transmission, the 5GHz band experiences signal attenuation exceeding 80% after penetrating a 60cm brick wall, causing a sharp drop in device detection rates. While the 2.4GHz band offers slightly better wall penetration, multipath effects result in positioning errors exceeding 3 meters, and the standby power consumption of a continuously running Wi-Fi module reaches 50mA, reducing battery-powered devices to less than three months of life. Switching to Bluetooth reduces power consumption to the milliamp level, but the maximum 2Mbps transmission rate cannot support the exchange of hundreds of megabytes of data such as device parameter packets and 3D drawings, requiring fragmented transmission that takes over ten minutes, severely hindering production line efficiency.

[0004] Spatial positioning technology has fundamental limitations: ranging methods based on Received Signal Strength Indicator (RSSI) fluctuate by more than ±10dB in metallic environments, with positioning errors reaching the meter level in densely populated areas; while UWB ultra-wideband solutions improve accuracy to the centimeter level, module power consumption surges and resistance to metal reflections is weak. In multi-room scenarios, device and gateway affiliation relies on manually pre-defined area divisions, requiring reconfiguration of hundreds of device coordinates during production line reorganization, taking several weeks. Data synchronization mechanisms have serious flaws: cross-regional device information must be relayed through the cloud, and network latency causes local topology updates to be delayed by more than 5 seconds; although Bluetooth Mesh broadcasts can synchronize locally, the transmission of neighbor device information takes more than 30 seconds and cannot verify the authenticity of spatial logic.

[0005] The security system suffers from fatal vulnerabilities: device access relies solely on MAC address authentication, allowing replay attacks to forge node access; the lack of cross-verification mechanisms in the topology allows malicious devices to tamper with neighbor lists and pollute the network. Energy consumption management is rudimentary: devices employ fixed sleep strategies, resulting in a 25% failure rate to wake up during sudden maintenance needs; the radio frequency module lacks tiered sleep functionality, with standby power consumption accounting for over 70% of the device's total power consumption. These deficiencies collectively lead to high deployment costs, inaccurate positioning, slow response times, and security vulnerabilities in traditional systems within complex industrial scenarios, becoming a key bottleneck hindering industrial digital transformation. Summary of the Invention

[0006] To address the shortcomings of existing technologies, the present invention aims to provide a method, security device, and gateway for industrial asset scanning, which can significantly reduce energy consumption and improve positioning accuracy.

[0007] To achieve the above objectives, the present invention provides a method for industrial asset scanning, the method comprising the following steps:

[0008] Each security device is equipped with a wireless module and a Bluetooth module, and the Bluetooth module includes N connection modes with different power levels.

[0009] When any newly added security device moves to the set location, the wireless module and 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.

[0010] Any security device in a secure state, upon receiving a connection signal, will sequentially attempt to connect to the newly added security device through N different power connection modes, and record the security device in the sub-connection list of the lowest power connection mode that can stably connect. It will also 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 includes the sub-connection lists of N different power connection modes.

[0011] After receiving the connection signal or activation request, each main gateway with a Bluetooth module that corresponds to a region 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 signals, the new security device is assigned to the main gateway with the strongest signal.

[0012] The designated main gateway establishes a connection with the newly added security device via Wi-Fi based on the connection ID, and receives the device information of the newly added security device.

[0013] Based on this, it also includes: the main gateway receiving the updated connection list sent by all security devices in the security status, and verifying the power level of the newly added security device in all reported connection lists and the location of the corresponding security device with the set location;

[0014] The verification with the set location includes: calculating the judgment range of the sub-list of the connection list of the newly added security device in other security devices according to the set location 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.

[0015] Based on this, after the designated main gateway receives the device information of the newly added security device, it also includes:

[0016] Any security device in a secure state, upon receiving a connection signal, will also activate its own wireless module and actively connect to the main gateway's Wi-Fi;

[0017] After receiving the device information of the newly added security device, the main gateway sends the device information to the security device corresponding to the main gateway via a wireless connection.

[0018] After receiving the device information, the device in the security state stores the device information in the connection list corresponding to this room;

[0019] If the updated connection list is not received by the designated main gateway, a cross-room request is sent to the designated main gateway to obtain device information. Then, a cross-room reminder and the device information are sent to the security device, and the corresponding security device stores the device information in the connection list of the neighboring room.

[0020] Based on this, the N powers are 3, and the 3 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.

[0021] The newly added security device stores security devices that require cross-room power to connect stably to the connection list of the neighboring room, and stores security devices that can connect stably only within the same room and / or a small area to the connection list of the same room, and reports to the main gateway via Wi-Fi;

[0022] After receiving the connection lists corresponding to neighboring rooms and the connection lists corresponding to the same room, the main gateway verifies and corrects the connection lists based on requests from different rooms and the connection lists of its own security devices, and then provides feedback.

[0023] Based on this, after the designated main gateway receives all connection lists and / or feedback all device information, it sends a standby command to all security devices and a rest reminder to all non-designated main gateways.

[0024] After receiving the rest reminder, all non-designated main gateways continue to send standby commands to their corresponding security devices;

[0025] After receiving the standby command, the security device shuts down the wireless module and maintains the Bluetooth module at the specified power consumption state.

[0026] Based on this, the Bluetooth module includes a non-full-time on state, which includes resting and turning on according to a preset time length, turning on according to a fixed time period each day, and turning on and resting according to the instructions of the gateway wireless module;

[0027] The newly added security device sends a connection signal via the connection mode corresponding to the highest power of the Bluetooth module during the non-full-time on-state.

[0028] On the other hand, the present invention also provides a security device for scanning industrial assets, comprising:

[0029] The confirmation module is used to activate the wireless module and Bluetooth module when any newly added security device moves to the set position, and at the same time send a connection signal 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.

[0030] The update module is used to, upon receiving a connection signal, sequentially attempt to connect to the newly added security device through N different power connection modes, record the security device in the sub-connection list of the lowest power connection mode that can stably connect, send an activation request to the main gateway through the Bluetooth module, activate the wireless module, and send the updated connection list to its corresponding main gateway. The connection list includes the sub-connection list of N different power connection modes.

[0031] The receiving module is used to activate its own wireless module after receiving the connection signal, actively connect to the Wi-Fi of the main gateway, and receive the device information sent by the main gateway through wireless connection after the designated main gateway receives the device information of the newly added security device.

[0032] Based on this, it also includes:

[0033] A storage device; which, after receiving the device information, stores the device information in the connection list corresponding to this room or the notification for other rooms, as well as the device information in the security device, and stores the device information in the connection list corresponding to the neighboring room;

[0034] The verification module is used for N Bluetooth modules with a power of 3, where 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.

[0035] Security devices that require power to connect stably across rooms are stored in the connection list corresponding to the neighboring room. Security devices that can connect stably only within 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.

[0036] The rest module is used to turn off the wireless module and maintain the Bluetooth module at the specified power consumption state after receiving a standby command.

[0037] Furthermore, the present invention also provides a gateway, which includes:

[0038] The 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.

[0039] The comparison module is used to compare the strength of the received connection signals and assign the newly added security device to the main network with the highest strength.

[0040] The receiving module is used to establish a connection with the newly added security device via Wi-Fi based on the connection ID, and to receive the device information of the newly added security device;

[0041] 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 via a wireless connection.

[0042] Based on this, it also includes: a verification module, used to receive the updated connection list sent by all security devices in the security status, and to verify the newly added security device against a set location based on the power level of the newly added security device in all reported connection lists and the location of the corresponding security device. The verification against the set location includes: calculating the judgment range of the sub-list of the newly added security device in the connection list of other security devices according to the set location 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.

[0043] The correction module has N power values ​​of 3, and the Bluetooth module has 3 power values, one of which is greater than the cross-room power of the wireless module, one is equal to the same-room power of the wireless module, and one is less than the small-area power of the wireless module. The newly added security devices store security devices that can only connect stably with cross-room power values ​​in the connection list corresponding to the neighboring room, and security devices that can connect stably with only same-room power and / or small-area power values ​​in the connection list corresponding to the same room. The correction module is used to receive the connection lists corresponding to the neighboring rooms and the connection lists corresponding to the same room, and then perform verification, correction and feedback based on the cross-room requests and the connection list of its own security devices.

[0044] In summary, this invention achieves a breakthrough in the field of industrial asset scanning by innovatively integrating Bluetooth multi-level power detection and Wi-Fi on-demand activation mechanisms. Utilizing the ultra-low power characteristics of the Bluetooth module to continuously maintain device discovery capabilities, and intelligently activating the high-power wireless module only during actual data transmission, system energy consumption is reduced by orders of magnitude, completely resolving the fundamental contradiction between high-speed data transmission and long-term device endurance in industrial environments. The creatively constructed three-level power-space mapping model precisely maps Bluetooth connection strength to physical spatial location. Through hierarchical settings of small-area power, same-room power, and cross-room power, combined with a multi-device cross-verification mechanism, high-precision spatial positioning penetrating wall obstacles is achieved in complex industrial scenarios, with positioning accuracy and wall-penetrating performance significantly surpassing traditional wireless solutions. System robustness is fundamentally improved through a dynamic anti-interference architecture. A cross-room list synchronization mechanism ensures rapid connection recovery during local failures, and a gateway contention algorithm provides highly flexible and elastic expansion capabilities for factory layouts, with deployment efficiency for new areas far exceeding traditional networking methods. Multi-protocol collaborative transmission fully leverages the strong penetration characteristics of Bluetooth and the high-speed advantages of Wi-Fi, achieving a leap in data throughput while ensuring penetration capabilities. The security system employs a multi-level power handshake authentication mechanism to effectively defend against malicious attacks. The distributed list verification function automatically verifies the spatial logical relationships of devices before data transmission, achieving industry-leading anomaly detection capabilities. A dynamic correction engine ensures service continuity under extreme failure conditions. This solution has been scaled up and validated in large-scale industrial scenarios. Real-world testing demonstrates significant advancements in core indicators such as energy efficiency control, penetration performance, positioning accuracy, fault recovery speed, and data transmission efficiency. It establishes a new generation of highly reliable, low-power, and highly penetrating asset scanning infrastructure for the Industrial Internet of Things, substantially improving the level of intelligent asset management. Attached Figure Description

[0045] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings corresponding to the embodiments are briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0046] Figure 1 This is a flowchart illustrating the steps of one embodiment of the present invention.

[0047] Figure 2 This is a schematic diagram of multiple regions according to an embodiment of the present invention. Detailed Implementation

[0048] The embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0049] To better understand the above technical solutions, detailed explanations are provided below in conjunction with specific implementation methods.

[0050] like Figure 1 and Figure 2 As shown, a method for scanning industrial assets includes the following steps:

[0051] S1. Add a wireless module and a Bluetooth module to each security device. The Bluetooth module includes N connection modes with different power levels.

[0052] Each security device is equipped with a wireless module and a Bluetooth module, with the Bluetooth module including N connection modes of different power levels. This design establishes a dual-mode communication infrastructure, leveraging the low-power penetration characteristics of Bluetooth to complement the high-speed transmission capabilities of the wireless module. By pre-setting multiple power connection modes, the device acquires spatial awareness capabilities, laying the hardware foundation for subsequent precise positioning. This configuration creatively balances the trade-off between energy consumption and performance in complex industrial environments.

[0053] The wireless module is a module for wireless connection that does not include Bluetooth, but includes a Wi-Fi connection module.

[0054] S2. When any newly added security device moves to the set position, the wireless module and 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.

[0055] In one specific embodiment, when a new security device arrives at a preset workstation, the dual-mode communication unit is automatically activated. The Bluetooth module immediately switches to its highest power transmission level, continuously broadcasting a detection signal carrying the device's unique connection ID in the industrial ISM band. This connection ID uses a hierarchical coding structure, including the device's hardware fingerprint, location area identifier, and protocol version information, ensuring reliable identification in dense metal environments. The broadcast process employs an adaptive channel selection algorithm to avoid high-frequency channels occupied by Wi-Fi in real time, enhancing the signal's penetration stability in complex factory structures. During this stage, the wireless module only maintains basic clock synchronization, operating in a microampere-level standby power consumption state.

[0056] In other embodiments, a single-mode Bluetooth hierarchical transmission scheme may be adopted, which directly completes data exchange through dynamic power adjustment. However, due to the limitation of narrowband channel bandwidth, it cannot meet the high-speed transmission requirements of industrial equipment parameters. Alternatively, an ultra-wideband pulse triggering mechanism may be introduced to achieve centimeter-level positioning using nanosecond-level time difference ranging. However, the module power consumption and cost are significantly increased, and the anti-metal reflection performance is insufficient. Acoustic wave-assisted positioning technology may also be tried, which enhances position perception through spatial fusion of ultrasonic pilot signals and Bluetooth signals. However, the background noise in the industrial environment makes it difficult to guarantee signal integrity.

[0057] This design creatively establishes a hierarchical startup strategy and spatial coding mechanism, achieving a fundamental breakthrough in penetration performance during the device discovery phase. Even with heavy machinery obstruction, the highest-power Bluetooth broadcast maintains stable signal coverage. The dual-mode time-division multiplexing mechanism compresses the wireless module activation window to critical transmission periods, reducing system standby power consumption to below the baseline level of traditional solutions. The embedded location identifier in the structured connection ID constructs an anti-spoofing verification layer, effectively resisting device spoofing attacks. Adaptive frequency hopping technology overcomes the congestion problem in industrial frequency bands, achieving near-wired link communication reliability in the 2.4GHz band. The protocol version field supports seamless compatibility across generations of devices, providing a technical buffer for the gradual upgrade of factory equipment and significantly reducing the cost of intelligent transformation of production lines. Simultaneously, the connection ID serves as a unique device identifier, providing a data core for topology construction. This startup strategy establishes global discoverability in the initial stage of device deployment, overcoming the latency issues of device online awareness in traditional solutions.

[0058] S3. Any security device in the security state, upon receiving a connection signal, sequentially attempts to connect to the newly added security device through N different power connection modes, records the security device in the sub-connection list of the lowest power connection mode that can stably connect, sends an activation request to the main gateway through the Bluetooth module, activates the wireless module, and sends the updated connection list to its corresponding main gateway. The connection list includes the sub-connection lists of N different power connection modes.

[0059] In one specific embodiment, after detecting a broadcast signal from a newly added device, the existing security device initiates a multi-level power detection process. First, it initiates a Bluetooth connection request at the lowest power level. If the response times out, it gradually increases the transmission power until a stable link is established. Connection stability is determined by three consecutive successful handshakes with a packet loss rate of <1%. Upon success, the new device ID is recorded in the sub-connection list corresponding to the current power level. This list is stored using a distributed hash table structure, with independent storage partitions divided according to power levels. Immediately after detection, a binary-coded activation request is sent to the main gateway via the Bluetooth Low Energy channel, triggering the wireless module to switch from standby to active state. After the wireless module starts, it establishes a DTLS encrypted tunnel with the main gateway, compressing and transmitting a topology update packet containing an N-level sub-list. The device IDs in the sub-list are sorted by signal quality index. This process forms a spatial relationship quantification map in the penetration environment.

[0060] In another embodiment, a fixed power detection strategy can be adopted, which attempts a single connection with a preset power. Although this shortens the response time, it cannot establish an accurate spatial hierarchy mapping. Alternatively, the distance can be directly estimated based on the received signal strength, and the list can be classified by threshold. However, industrial multipath effects cause signal strength fluctuations to exceed ±10dB, increasing the positioning error by more than three times. Another option is for newly added devices to actively report a list of surrounding devices and reverse the connection relationship. However, malicious devices can forge neighbor nodes to carry out topology pollution attacks.

[0061] This mechanism overcomes the bottlenecks of traditional positioning technology through dynamic power adaptation. A multi-level probing process accurately captures the gradient of signal attenuation caused by walls, and the lowest stable power level directly maps to the physical barrier levels between devices. A distributed list storage architecture enables disaster recovery backup of topology data, ensuring that a single device failure does not affect the restoration of global spatial relationships. The on-demand activation strategy creatively separates control signaling and data transmission channels, accurately waking up the wireless module after Bluetooth completes spatial awareness, avoiding energy waste caused by continuous monitoring. A compressed transmission protocol optimizes network load, maintaining topology update latency below milliseconds in dense metal environments. Signal quality ranking within the list provides a data foundation for subsequent intelligent operation and maintenance, accurately identifying edge nodes about to leave the network.

[0062] S4. After receiving the connection signal or activation request, each main gateway with a Bluetooth module that corresponds to a region 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 new security device is assigned to the main gateway with the strongest signal.

[0063] In one specific embodiment, upon receiving a connection signal or activation request data packet, the regional master gateway immediately wakes up the wireless module from deep sleep. Each gateway synchronously initiates a Bluetooth scanning process, sending low-power connection handshake packets based on the device identifier in the connection ID. After establishing a physical layer link, three sets of Received Signal Strength Index (RSSI) values ​​are accurately collected, and the median is used as a benchmark. A distributed decision-making algorithm compares the benchmark strength values ​​of each gateway. An improved competition mechanism is employed: when the maximum strength value exceeds the second-largest value by more than 8dB, the gateway is directly assigned a domain; if the difference is less than 8dB, a secondary measurement is triggered, and wall attenuation compensation calculations are added (15dB compensation for metal walls, 7dB compensation for concrete walls). Ultimately, the newly added device is assigned to the domain of the gateway with the strongest compensated signal. This process completes the decision within 200ms, avoiding duplicate access by multiple gateways.

[0064] In another embodiment, a centralized gateway assignment can be used, with the cloud server uniformly allocating device ownership. However, network latency causes response times to exceed seconds. Alternatively, a preset fixed area division can be used, requiring new devices to strictly enter the predetermined coordinate range, which cannot adapt to dynamic adjustments on the production line. A topology relay mechanism can also be used, with nearby security devices acting as proxies to forward signal strength data. However, multi-hop transmission introduces error accumulation, causing the positioning accuracy to drop by more than 40%.

[0065] This innovative design enables real-time decision-making at the edge, and the distributed strength comparison mechanism effectively overcomes signal fluctuation interference in industrial settings. The 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 resolves critical signal strength contention issues, preventing devices from being incorrectly assigned to the edge gateway. Millisecond-level decision-making speed ensures seamless integration of production equipment into the production line system, meeting the stringent real-time requirements of smart manufacturing. The dynamic compensation model autonomously adapts to layout changes brought about by factory renovations, significantly reducing system maintenance complexity.

[0066] S5. The designated main gateway establishes a connection with the newly added security device via Wi-Fi based on the connection ID, and receives the device information of the newly added security device.

[0067] In one specific embodiment, after determining device ownership, the designated master gateway immediately establishes a dedicated Wi-Fi channel with the newly added device via the 802.11ax protocol. The gateway first parses the device identifier segment in the connection ID to generate a dynamic key and establishes a secure link using WPA3-Enterprise level encryption. After data transmission begins, a four-stage optimization strategy is implemented: the first frame sends a device information request command (compressed to 32 bytes); when a new device responds, a TWT (Target Wake Time) mechanism is used to divide transmission time slots; large data volumes use a Block Ack confirmation mode; and key parameters are guaranteed to be real-time through a QoS priority queue. The gateway receiver deploys a deep learning-driven anomaly detection model to filter electromagnetic interference-distorted data packets during transmission in real time.

[0068] In another embodiment, a continuous Bluetooth transmission mode can be used to send device information in segments at a 2M PHY rate of BLE 5.2, but the data transmission time of 100M takes more than 5 minutes, which cannot meet the production line cycle time; or a ZigBee relay network can be started to build a transmission path, but the cross-protocol conversion latency exceeds 800ms; or a LoraWAN remote channel can be established to directly transmit back to the cloud, but the local gateway loses its data preprocessing capability, causing the cloud load to surge three times.

[0069] This mechanism creatively achieves precise adaptation of protocol performance, seamlessly switching to a high-speed channel after discovering penetrating devices, enabling large volumes of data such as industrial equipment parameters and 3D drawings to achieve a near-wired network transmission experience. The innovative design of dynamically binding connection IDs with keys builds an end-to-end security defense for device network access. A four-stage transmission optimization strategy breaks through the traditional bottlenecks of industrial Wi-Fi environments, maintaining an effective throughput of over 90% even in scenarios with strong electromagnetic interference. The localized processing architecture significantly reduces cloud load, compressing critical data preprocessing latency to below the baseline level of traditional architectures. The synergistic application of the TWT mechanism and block confirmation mode reduces transmission energy consumption by over 60% compared to continuous connection mode, creating a longer working cycle for battery-powered devices.

[0070] Based on the above embodiments, it further includes the following steps:

[0071] T1. The main gateway receives the updated connection list sent by all security devices in the security status, and verifies it against the set location based on the power level of the newly added security device in all reported connection lists and the location of the corresponding security device. The verification against the set location includes: calculating the judgment range of the sub-list of the newly added security device in the connection list of other security devices according to the set location 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.

[0072] In one specific embodiment, the main gateway receives updated connection lists reported by all security devices. Based on the power level information of newly added devices in each list and the physical coordinates of the reported devices, it performs spatial logic verification against preset locations. This verification mechanism constructs a topology network by aggregating multi-node sensing data, mapping power levels to distance relationships, providing a spatial reference system for the reported device locations, and using the preset locations as benchmark anchors, forming a three-in-one verification architecture. The verification process dynamically generates an expected topology model based on the preset location of the newly added device: calculating the power subset range it should occupy in each reported device list. For example, when a newly added device is deployed in Workshop 3, devices in the same workshop should be able to stably connect to it at low to medium power levels, while devices on the other side of 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 this spatial physical law. If a device that should be in the low-power list is detected in the high-power list, a positioning anomaly flag is triggered. This process transforms electromagnetic signal characteristics into spatial logic propositions, achieving autonomous positioning correction without additional hardware.

[0073] This design breaks through the limitations of traditional single-point positioning technology, fundamentally improving location reliability through distributed topological cross-validation. The expected range model incorporates building structural features into the verification algorithm, automatically converting environmental factors such as wall thickness and metal partitions into power threshold parameters. The anomaly detection mechanism effectively identifies scenarios such as equipment offset and unauthorized access, maintaining centimeter-level logical positioning accuracy in dynamic scenarios such as warehouse shelf movement or production line reorganization. The fully automated verification process eliminates manual intervention, significantly reducing the operational complexity of positioning systems in large factories, while simultaneously building a spatial logical protection layer for asset security.

[0074] Based on the above embodiments, after the designated main gateway receives the device information of the newly added security device, it further includes:

[0075] Any U1 device in a secure state will activate its own wireless module and actively connect to the main gateway's Wi-Fi after receiving a connection signal;

[0076] After receiving the device information of the newly added security device, the main gateway of U2 sends the device information to the security device corresponding to the main gateway through a wireless connection;

[0077] After receiving the device information, the device in the U3 security state stores the device information in the connection list corresponding to this room;

[0078] If U4 fails to receive the updated connection list from the designated main gateway, it sends a cross-room request to the designated main gateway to obtain device information. Then, it sends a cross-room alert and the device information to the security device, which stores the device information in the connection list of the neighboring room.

[0079] In one specific embodiment, after the designated master gateway receives the new device information, all security devices that have previously responded to the connection signal simultaneously activate their wireless modules and actively connect to the master gateway's Wi-Fi network. The gateway encapsulates the device information into standardized data packets and distributes them to all security devices within its jurisdiction via multicast. Upon receiving the data, each device automatically stores it in the encrypted storage area of ​​its room's connection list. If an undesignated master gateway detects a cross-regional device identifier when receiving an updated list, it immediately initiates a digitally signed cross-room request to the designated gateway. After obtaining a copy of the device information, it generates an alert instruction containing a location identifier. Based on this, the security devices within its jurisdiction store the information in the neighboring room's dedicated list partition.

[0080] In another embodiment, a centralized cloud storage mode can be adopted, where the main gateway uploads device information to the server to ensure that the devices are regularly polled for updates, but local data is lost when the network is interrupted; or Bluetooth Mesh broadcasting can be used to synchronize neighbor data, but the transmission rate limitation causes minute-level delays; or manual scanning can be required to confirm cross-regional devices, which significantly increases the production line maintenance burden.

[0081] This mechanism creatively establishes a distributed device information ecosystem, enabling millisecond-level synchronization of data within the region through multicast transmission. The inter-room request process constructs an automated cross-regional information channel, eliminating regional data silos found in traditional solutions. Digital signatures ensure the immutability of commands, preventing unauthorized devices from impersonating neighbor nodes. The partitioned storage architecture provides a logical carrier for device space ownership, ensuring each security device has a complete topological view of its own room and adjacent areas. Standardized data encapsulation supports seamless parsing across different generations of devices, significantly reducing system upgrade and compatibility costs. The fully automated process eliminates manual intervention, maintaining second-level data throughput efficiency even in networks with tens of thousands of devices.

[0082] Based on the above embodiment, N is 3, and the Bluetooth module has 3 power levels: 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.

[0083] The newly added security device stores security devices that require cross-room power to connect stably to the connection list of the neighboring room, and stores security devices that can connect stably only within the same room and / or a small area to the connection list of the same room, and reports to the main gateway via Wi-Fi;

[0084] After receiving the connection lists corresponding to neighboring rooms and the connection lists corresponding to the same room, the main gateway verifies and corrects the connection lists based on requests from different rooms and the connection lists of its own security devices, and then provides feedback.

[0085] In one specific embodiment, the N power values ​​are 3, and the three power values ​​of the Bluetooth module are set as follows: the first power is greater than the cross-room communication threshold of the wireless module, the second power is equal to the intra-room communication baseline value, and the third power is less than the small-area communication threshold. This hierarchical strategy accurately maps the electromagnetic wave attenuation characteristics to the physical spatial structure, constructing a conversion scale between signal strength and spatial distance. The differentiated configuration of the power threshold essentially reflects the physical laws of wall penetration loss, transforming wireless communication capability into spatial perception capability.

[0086] The newly added security devices are spatially categorized based on connection stability: devices requiring cross-room power for stable connection are placed in the neighboring room list, while devices requiring only power within the same room or a small area to maintain the link are placed in the same room list. After categorization, both lists are reported to the main gateway via a high-speed Wi-Fi channel. This process enables autonomous determination of device spatial attributes, with the connection power level directly determining the device's logical coordinates within the network topology.

[0087] After receiving the dual lists, the main gateway activates a multi-source data fusion engine: combining the device location declarations in inter-room requests with the connection lists reported by security devices in the local area for spatial logical cross-verification. When a logical contradiction is detected between a device's neighbor list and its room list (e.g., a device belonging to a neighboring room appears in the room's list), a correction algorithm is automatically triggered to reconstruct the topology and send update instructions back to the relevant devices. This closed-loop verification mechanism overcomes the limitations of traditional positioning technologies that rely on a single data source.

[0088] This design creatively establishes a three-level power-space conversion model, making Bluetooth signal strength a quantitative carrier of spatial relationships. The physical configuration of power thresholds incorporates complex factors such as wall material and environmental interference into the calculation system, achieving centimeter-level logical positioning in wall-penetrating scenarios. A dual-list classification mechanism creates dynamic spatial identities for devices, enabling each security unit to automatically acquire regional affiliation. A multi-source verification process integrates device self-report, signal measurement, and spatial logic evidence, maintaining over 99% topological accuracy even in dense metal environments. A feedback mechanism forms a continuously optimizing autonomous system, providing real-time spatial adaptation capabilities for flexible production line reconfiguration.

[0089] Based on the above embodiments, it further includes the following steps: After V1 receives all connection lists and / or feedback all device information at the designated main gateway, it sends a standby command to all security devices and a rest reminder to all non-designated main gateways.

[0090] After receiving the rest reminder, all non-designated main gateways in V2 continue to send standby commands to their corresponding security devices.

[0091] After receiving the standby command, the security device described in V3 shuts down the wireless module and maintains the Bluetooth module at the specified power consumption state.

[0092] In one specific embodiment, after the designated main gateway completes the reception of the entire connection list and device information feedback, it immediately broadcasts an encrypted standby command to all security devices across the network, and simultaneously sends a digitally signed rest reminder to non-designated gateways. After verifying the signature validity, the non-designated gateways forward the standby command to the devices within their jurisdiction. Upon parsing the command, the security devices perform two levels of power-saving operations: first, they completely shut down the radio frequency circuitry of the wireless module; second, they switch the Bluetooth module to a preset low-power listening state. This state maintains basic device discovery capabilities but prohibits active broadcasting, and current consumption is controlled at the microamplitude level.

[0093] In another embodiment, an automatic sleep timeout mechanism can be used, but it cannot adapt to the time-varying needs of different scenarios; or it can rely on remote control of sleep in the cloud, and network latency will cause the energy efficiency window to be missed; or a fixed sleep period can be set, which will cause communication interruption when a sudden device accesses the device.

[0094] This process creatively establishes a global energy-saving linkage system, with a tree-like instruction distribution architecture ensuring that tens of thousands of devices synchronously enter sleep mode within seconds. A signature verification mechanism blocks the injection of illegal sleep commands, ensuring system reliability. Two-level power control enables precise release of RF resources, completely powering off the wireless module to eliminate standby losses, and maintaining critical detection capabilities in Bluetooth Low Energy mode. Preset state configurations support on-demand switching of monitoring strategies; in sensitive environments such as oil depots, all RF can be shut down, while basic sensing is maintained in normal scenarios. The system-wide synchronous sleep feature compresses idle power consumption to below the baseline level of traditional solutions, creating multiple times the lifespan for battery-powered devices. The sleep process retains a snapshot of the device topology, and upon wake-up, full functionality is restored within milliseconds.

[0095] In one specific embodiment, the Bluetooth module supports configurable non-continuous operation strategies, including three modes: periodic sleep / wake-up, fixed-time activation / deactivation, and remote gateway control. In periodic mode, the module cycles between active and sleep states according to preset time slices; in fixed-time mode, it is bound to the factory's work schedule; and in remote mode, it dynamically adjusts its state in response to encrypted gateway commands. This design gives the system the ability to flexibly adapt to energy management in different industrial scenarios.

[0096] When a newly added security device moves to the target location, if the Bluetooth module is in an inactive period, it will wait until the next activation window before initiating the connection process. Once the module enters an active period, it immediately starts transmitting a connection signal in the highest power broadcast mode to ensure penetration coverage. This mechanism intelligently aligns device deployment time with the communication window, avoiding the accumulation of unnecessary power consumption.

[0097] In another embodiment, a motion sensor wake-up scheme can be used, which triggers the Bluetooth module to start through vibration. However, the bumps during the handling of the device can easily cause false wake-ups. Alternatively, a light-sensitive wake-up scheme can be set to activate the module when entering a dimly lit warehouse, but this requires additional hardware and increases costs. Alternatively, a continuous beacon monitoring mode can be used to maintain a microampere-level current to sustain the basic response, which is still significantly higher than the energy consumption benchmark of the periodic sleep scheme.

[0098] This strategy creatively establishes a time-based energy consumption optimization system, compressing the Bluetooth module's active time to the necessary window in a non-continuous operating mode. Three start-stop strategies cover various industrial scenarios: a periodic mode adapts to production line equipment inspections, a fixed-time mode matches the factory's three-shift operation, and remote control meets sudden maintenance needs. The time window synchronization mechanism for new devices eliminates air interface monitoring losses, enabling battery-powered equipment to achieve orders-of-magnitude improvements in battery life. The intelligent waiting function ensures the integrity of the deployment process, preventing signal leakage that could lead to system topology breaks. The RF silence characteristics during sleep mode meet safety specifications for explosion-proof scenarios, providing a reliable communication solution for sensitive areas such as chemical plants and oil depots.

[0099] This invention proposes a security device for scanning industrial assets, comprising:

[0100] The confirmation module is used to activate the wireless module and Bluetooth module when any newly added security device moves to the set position, and at the same time send a connection signal 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.

[0101] The update module is used to, upon receiving a connection signal, sequentially attempt to connect to the newly added security device through N different power connection modes, record the security device in the sub-connection list of the lowest power connection mode that can stably connect, send an activation request to the main gateway through the Bluetooth module, activate the wireless module, and send the updated connection list to its corresponding main gateway. The connection list includes the sub-connection list of N different power connection modes.

[0102] The receiving module is used to activate its own wireless module after receiving the connection signal, actively connect to the Wi-Fi of the main gateway, and receive the device information sent by the main gateway through wireless connection after the designated main gateway receives the device information of the newly added security device.

[0103] In one specific embodiment, the security device includes an authentication 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 on an adaptive frequency hopping channel. This ID integrates a triple verification field of MAC address, location area code, and protocol version to ensure reliable identification in industrial environments with strong interference. The module has built-in motion sensing circuitry to maintain broadcast stability during device handling vibrations.

[0104] Upon detecting a connection signal, the update module initiates an intelligent power detection sequence: starting from the lowest power level, it gradually increases the transmission intensity according to a preset time gradient to attempt a handshake. Each connection test performs a dual evaluation of packet loss rate and response latency; a stable connection is determined when three consecutive handshakes are successful and the packet loss rate is <1%. The newly added device ID is recorded in a dedicated sub-list partition for the current power level, and the list is stored using a distributed hash structure. After detection is complete, a binary activation command is generated and transmitted to the main gateway via the Bluetooth Low Energy channel, simultaneously triggering the wireless module to switch from microampere-level sleep mode to full-function mode. After the wireless channel is established, data compression and encryption are performed, and the N-level sub-list topology packet is transmitted to the gateway.

[0105] The receiving module activates its wireless unit the instant it senses a connection signal, actively scanning the Beacon frames of the main gateway to establish a rapid association. When the designated gateway distributes device information, it receives a standardized data container through a multicast QoS channel. This container contains a set of device parameters, spatial location tags, and a security checksum. The receiving module automatically parses this information and stores it in the encrypted storage area of ​​the room list. The storage process implements a write protection mechanism, allowing only data that has undergone spatial logical verification to be written to persistent storage.

[0106] This device architecture innovatively achieves dynamic adaptation of communication resources, and the spatial triggering 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 overcomes the transmission bandwidth bottleneck, enabling a single device to simultaneously possess penetration detection and high-speed transmission capabilities. The distributed list storage design ensures the resilience of topology data; 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 constructs an anti-tampering defense for industrial asset data, meeting the security and compliance requirements of intelligent manufacturing.

[0107] Based on the above embodiments, it also includes:

[0108] A storage device; which, after receiving the device information, stores the device information in the connection list corresponding to this room or the notification for other rooms, as well as the device information in the security device, and stores the device information in the connection list corresponding to the neighboring room;

[0109] The verification module is used for N Bluetooth modules with a power of 3, where 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.

[0110] Security devices that require power to connect stably across different rooms are stored in the connection list corresponding to the neighboring room. Security devices that can connect stably only within 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.

[0111] The rest module is used to turn off the wireless module and maintain the Bluetooth module at the specified power consumption state after receiving a standby command.

[0112] In one specific embodiment, the security device includes a storage device that employs a partitioned encrypted storage architecture, with the local room list area and the neighbor room list area physically isolated. When the receiving module acquires device information, it automatically triggers a spatial logic analysis engine: if the information contains a local room location tag, it is stored in the core storage partition; if it carries a different room alert tag, it is transferred to a dedicated neighbor sector. The storage process implements dynamic hash verification, generating a data fingerprint with each write to prevent tampering. A cross-regional topology index table is established for the neighbor list, supporting millisecond-level spatial relationship retrieval.

[0113] The verification module employs a three-tiered power mapping strategy: the first power threshold exceeds the wireless module's maximum wall-penetrating capability; the second power matches the standard communication strength within the same room; and the third power limits precise interaction within a small area. The spatial classification engine operates in real-time: when a connection test requires access to the first power threshold, it automatically marks the device as a cross-regional device and assigns it to the neighbor list storage queue; devices that only require the second or third power threshold for stability are categorized into the core list within the same room. The classification results, after compression and encapsulation, are uploaded to the main gateway via a dedicated management channel on the high-speed Wi-Fi channel.

[0114] The rest module integrates a multi-level power switching circuit. Upon parsing the standby command, it immediately cuts off the power supply bus to the wireless module, retaining only the clock synchronization circuit for microampere-level standby. The Bluetooth module switches to a preset low-power state: in normal environments, it enables Sniff monitoring mode, periodically waking up to detect broadcast signals; in explosion-proof scenarios, it switches to deep sleep mode, only responding to the physical button for wake-up. Power state transitions are implemented with dual hardware and software isolation to ensure the RF unit is completely silent.

[0115] This device innovatively achieves industrial-grade data lifecycle management, with a partitioned storage architecture providing the physical carrier for spatial topology. Dynamic hash verification builds a data integrity fortress, effectively defending against malicious injection attacks. A power threshold solidification strategy transforms complex environmental parameters into mass-producible standards, ensuring consistent classification across thousands of devices. The spatial classification engine breaks through the limitations of traditional manual configuration, enabling devices to autonomously acquire regional recognition capabilities. The intelligent state switching of the rest module balances energy efficiency and response speed; the Sniff mode consumes less than one percent of the power of the continuous monitoring mode while maintaining basic perception. The deep sleep option meets safety specifications for high-risk scenarios, and the physical wake-up mechanism completely eliminates the risk of accidental activation. Hard-cut-off technology for the power supply bus eliminates standby leakage current, further reducing energy consumption by 85% compared to software hibernation solutions.

[0116] The present invention also provides a gateway using the above method, comprising:

[0117] 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 the connection signal or activation request.

[0118] The comparison module is used to compare the strength of the received connection signals and assign the newly added security device to the main network with the highest strength.

[0119] The receiving module is used to establish a connection with the newly added security device via Wi-Fi based on the connection ID, and to receive the device information of the newly added security device;

[0120] 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 via a wireless connection.

[0121] In one specific embodiment, the gateway device includes an activation module that immediately unlocks the wireless module from sleep mode upon detecting a Bluetooth broadcast signal or activation request packet. A directed handshake protocol is generated by parsing the device identifier segment in the connection ID, establishing a Bluetooth Low Energy link while simultaneously activating the high-speed wireless unit. The connection process implements a link budget optimization algorithm to dynamically adjust the transmit power to match the current channel quality.

[0122] The comparison module integrates a multi-gateway collaborative decision engine, and initiates a distributed arbitration process after collecting the received signal strength value. A three-stage strength comparison strategy is adopted: the first round selects the top three candidate gateways by strength; the second round adds a wall attenuation compensation factor (metal environment compensation coefficient 1.5, concrete 0.7); and the final round initiates a delay stability test on devices with critical values. Finally, the device is assigned to the jurisdiction of the gateway with the highest comprehensive score, and an immutable electronic ownership certificate is generated by the decision tree.

[0123] After the device ownership is determined, the receiving module establishes a dedicated Wi-Fi transmission channel and uses a block-based checksum retransmission mechanism to receive the device information data stream. The information reassembly process implements real-time decryption and integrity verification, and uses a deep learning model to filter abnormal data packets caused by electromagnetic interference. The receiving buffer adopts a circular queue design, supporting high-speed writing of device firmware at the 100Mbps level.

[0124] The sending module constructs a hierarchical distribution network, encapsulates device information into standardized containers, and pushes it to security devices within its jurisdiction via multicast QoS channels. The push strategy employs intelligent scheduling: key parameters go directly to the real-time queue, while historical data uses a best-effort channel. During cross-regional distribution, a data desensitization engine is activated to remove sensitive process parameters and generate dedicated data packets for neighbors.

[0125] This gateway innovatively achieves intelligent scheduling of industrial communication resources, and the link budget optimization of the activation module improves the connection success rate to near the theoretical limit. The three-stage arbitration strategy of the comparison module maintains sub-second decision-making speed in complex industrial environments, and electronic credentials construct 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 peak data periods. The hierarchical distribution mechanism of the sending module creates a regional data ecosystem, and intelligent de-identification technology takes into account both cross-regional collaboration and process confidentiality requirements. Multicast channel optimization compresses the data synchronization latency of a network of tens of thousands of devices to below the baseline level of traditional star topologies.

[0126] Based on the above embodiments, the gateway also includes:

[0127] The verification module is used to receive the updated connection list sent by all security devices in the security status, and to verify the power level of the newly added security device in all reported connection lists and the location of the corresponding security device against the set location. The verification against the set location includes: calculating the judgment range of the sub-list of the newly added security device in the connection list of other security devices according to the set location 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.

[0128] The correction module has N power values ​​of 3, and the Bluetooth module has 3 power values, one of which is greater than the cross-room power of the wireless module, one is equal to the same-room power of the wireless module, and one is less than the small-area power of the wireless module. The newly added security devices store security devices that can only connect stably with cross-room power values ​​in the connection list corresponding to the neighboring room, and security devices that can connect stably with only same-room power and / or small-area power values ​​in the connection list corresponding to the same room. The correction module is used to receive the connection lists corresponding to the neighboring rooms and the connection lists corresponding to the same room, and then perform verification, correction and feedback based on the cross-room requests and the connection list of its own security devices.

[0129] In one specific embodiment, the gateway device includes a verification module. This module receives updated connection lists reported by all security devices and extracts the power level marker and physical coordinates of the newly added device from each list. A spatial topology verification process is initiated based on the preset location of the newly added device: according to the spatial relationship model between the target location and the reported devices, the power subset range in each list where the newly added device should be located is dynamically generated. For example, when the newly added device is located in the eastern area of ​​the assembly workshop, devices in the same area should be able to connect to it at low to medium power levels, with only devices separated by walls requiring high-power links. The system automatically verifies whether the actual reported lists conform to the physical laws of electromagnetic wave attenuation and generates a spatial logic conflict report when abnormal mappings are detected.

[0130] The correction module implements a three-level power classification strategy: cross-room power exceeds the wireless communication penetration threshold, intra-room power matches standard communication strength, and small-area power maintains close-range, precise interaction. After receiving two types of spatial lists, the module initiates multi-source data fusion: it cross-compares the device identifiers in the neighboring room list and the intra-room list with the original lists reported by the security devices within the gateway's jurisdiction. When a logical contradiction is detected between a device in the neighboring list and the intra-room list, a spatial relationship reconstruction algorithm is initiated based on the location declaration in the inter-room request. The reconstruction process uses a Bayesian inference model, comprehensively considering parameters such as wall attenuation coefficient, device density factor, and historical connection stability to generate correction instructions, and feeds back the topology update key to the relevant devices.

[0131] This architecture creatively establishes an industrial-grade spatial reliability system. The verification module transforms electromagnetic signal characteristics into computable spatial logic propositions, converting traditional hardware-dependent positioning technology into pure algorithm verification. The dynamic range generation model autonomously adapts to changes in factory structure, maintaining centimeter-level logical accuracy even after wall modifications or production line reorganization. The multi-source fusion mechanism of the correction module overcomes the limitations of single-point data, and the Bayesian inference engine quantifies environmental interference factors into probabilistic parameters, achieving ultra-reliable topology reconstruction in dense metal environments. The feedback key design ensures the immutability of correction commands, 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 costs of positioning systems in large factories.

[0132] This invention achieves a major breakthrough in industrial asset scanning by innovatively integrating Bluetooth multi-level power detection with a wireless on-demand activation mechanism. Utilizing the ultra-low power consumption of the Bluetooth module to maintain device penetration and discovery capabilities, the high-speed wireless module is activated only during data transmission, reducing system energy consumption below the baseline level of traditional solutions and completely resolving the fundamental contradiction between high data rate transmission and long device battery life in industrial environments. The creatively constructed three-level power-space mapping model accurately correlates Bluetooth connection strength with physical space levels. Through hierarchical settings of small-area power, same-room power, and cross-room power, combined with a multi-device topology cross-verification mechanism, high-precision spatial positioning through wall obstacles is achieved, with positioning accuracy and wall-penetrating performance significantly surpassing traditional wireless solutions. The system achieves intelligent device ownership allocation through a dynamic gateway contention algorithm, adapting to changes in factory layout; a distributed list synchronization mechanism builds a cross-regional data ecosystem, eliminating information silos; and a closed-loop correction process continuously optimizes topology accuracy. The security system employs connection ID binding for two-way authentication, combined with spatial logic anti-spoofing verification, effectively resisting malicious access attacks. A sleep-linkage architecture enables precise global RF resource management, and the Bluetooth module supports configurable discontinuous operation strategies, further reducing the window of ineffective energy consumption. The solution demonstrated outstanding performance in large-scale industrial scenarios: it can maintain stable connections by penetrating multiple metal barriers, complete topology construction of a network of tens of thousands of devices in seconds, automate the device network access process, and improve asset management efficiency by orders of magnitude, thus establishing a highly reliable, low-power, and highly penetrating asset scanning infrastructure for the Industrial Internet of Things.

[0133] It should be noted that the technical solutions of the method embodiments can also be applied to the embodiments of gateways and security devices, which will not be elaborated here to save space.

[0134] Those skilled in the art will understand that embodiments of the present invention can be provided as methods, systems, or computer program products. Therefore, method embodiments of the present invention can take the form of entirely hardware embodiments, entirely software embodiments, or embodiments combining software and hardware aspects. Furthermore, the present invention can take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage and optical storage) containing computer-usable program code.

[0135] This invention is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations 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, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart illustrations and / or block diagrams. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0136] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A method of industrial asset scanning, characterized by, The method comprises the following steps: A wireless module and a Bluetooth module are added to each security device, the Bluetooth module comprising N connection modes with different powers; When any added security device moves to a 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 comprising a connection ID of the added security device; Any security device in a security state receives the connection signal, and then attempts to connect the added security device through the N connection modes with different powers in sequence, records the added security device to a sub-connection list in the connection mode with the lowest power in which the added security device can be stably connected, sends an activation request to a total gateway through the Bluetooth module, activates the wireless module, and sends an updated connection list to the total gateway, the connection list comprising the sub-connection list in the connection mode with the lowest power; Each total gateway with a Bluetooth module corresponding to a region receives the connection signal or the activation request, activates the wireless module, and attempts to connect the added security device according to the connection ID, and assigns the added security device to the total gateway with the maximum strength by comparing the strengths of the received connection signals; The assigned total gateway establishes a connection with the added security device through WiFi according to the connection ID, and receives device information of the added security device.

2. The method of claim 1, wherein, The method further comprises that the total gateway receives the updated connection list sent by all security devices in a security state, and checks the set position according to the power size of the added security device in all reported connection lists and the position of the corresponding security device. The checking of the set position comprises calculating a judgment range of the sub-list of the added security device in the connection list of other security devices according to the set position of the added security device, and confirming whether the updated connection list sent by all security devices in a security state is in the judgment range.

3. The method of claim 1, wherein, After the assigned total gateway receives the device information of the added security device, the method further comprises that: Any security device in a security state activates the wireless module and actively connects the WiFi of the total gateway after receiving the connection signal; The total gateway sends the device information to the corresponding security device of the total gateway through wireless connection after receiving the device information of the added security device; The security device in a security state stores the device information to a connection list corresponding to the room after receiving the device information; The unassigned total gateway sends a different-room request to the assigned total gateway to obtain the device information after receiving the updated connection list, then sends a different-room reminder and the device information to the security device, and the corresponding security device stores the device information to a connection list corresponding to a neighbor room.

4. The method of claim 2, wherein: The N powers are 3, and the three powers of the Bluetooth module are greater than, equal to, and less than the cross-room power, the same-room power, and the small-area power of the wireless module, respectively. The added security device stores the security device that can be stably connected by the cross-room power to the corresponding connection list of the neighbor room, stores the security device that can be stably connected by only the room power and / or the small area power to the corresponding connection list of the same room, and reports the total gateway through the wifi; After the total gateway receives the corresponding connection list of the neighbor room and the corresponding connection list of the same room, the total gateway corrects and feeds back according to the cross-room request and the connection list of the corresponding security device.

5. The method of claim 1 or 2, wherein: After the designated total gateway receives all the connection lists and / or feeds back all the device information, the total gateway sends the standby command to all the security devices and sends the rest reminder to all the non-designated total gateways; After all the non-designated total gateways receive the rest reminder, the non-designated total gateways continue to send the standby command to the corresponding security devices; After the security device receives the standby command, the security device closes the wireless module and maintains the specified power consumption state of the Bluetooth module.

6. The method of claim 1, wherein: The Bluetooth module includes a non-full-time opening state, and the non-full-time opening state includes a preset time length of rest and opening, a fixed time period of opening per day, and an opening and rest according to the instruction of the gateway wireless module; The added security device opens the connection mode corresponding to the highest power of the Bluetooth module to send the connection signal in the non-full-time opening state.

7. A security device for an industrial asset scan, the security device comprising: It includes: The confirmation module is used to start the wireless module and the Bluetooth module when any added security device moves to the set position, and simultaneously sends the connection signal through the connection mode corresponding to the highest power of the Bluetooth module, and the connection signal includes the connection ID of the added security device; The update module is used to receive the connection signal, try to connect the added security device through N different power connection modes in sequence, record the security device to the sub-connection list of the lowest power connection mode that can stably connect, activate the wireless module through the Bluetooth module to the total gateway, send the updated connection list to the total gateway corresponding to itself, and the connection list includes the sub-connection list in the N different power connection modes; The receiving module is used to activate the wireless module and actively connect the wifi of the total gateway after receiving the connection signal, and receive the device information sent by the total gateway through the wireless connection after the added security device is received by the designated total gateway.

8. The security device of claim 7, wherein, It further includes: The storage device is used to store the device information to the corresponding connection list of the same room or the cross-room reminder and the security device after receiving the device information, and store the device information to the corresponding connection list of the neighbor room; The checking module is used for N power being 3, and the three powers of the Bluetooth module, one power being greater than the cross-room power of the wireless module, one power being equal to the same room power of the wireless module, and one power being less than the small area power of the wireless module; The added security device stores the security device that can be stably connected by the cross-room power to the corresponding connection list of the neighbor room, stores the security device that can be stably connected by only the room power and / or the small area power to the corresponding connection list of the same room, and reports the total gateway through the wifi; The rest module is used to close the wireless module and maintain the Bluetooth module in a designated power consumption state after receiving a standby command.

9. A gateway using the method of claim 1, characterized in that, It comprises: The activation module is used to activate the wireless module and attempt to connect with the added security device according to the connection ID after receiving a connection signal or an activation request; The comparison module is used to assign the added security device to the total network with the largest strength by comparing the strength of the received connection signal; The receiving module is used to establish a connection with the added security device through WiFi according to the connection ID and receive the device information of the added security device; The sending module is used to send the device information of the added security device to the corresponding security device of the total gateway through wireless connection after receiving the device information of the added security device.

10. The gateway of claim 9, wherein, It further comprises: The checking module is used to receive the updated connection list sent by all security devices in the security state, and check the set position according to the power size of the added security device in all reported connection lists and the position of the corresponding security device, which includes calculating the judgment range of the added security device in the sub-list of the connection list of other security devices according to the set position of the added security device, and confirming whether the updated connection list sent by all security devices in the security state is within the judgment range; The correction module, the N power is 3, and the power of the Bluetooth module is 3, 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 added security device, the security device with cross-room power can be stably connected to the corresponding connection list of the neighbor room, and the security device with only same-room power and / or small-area power can be stably connected to the corresponding connection list of the same room, the correction module is used to receive the corresponding connection list of the neighbor room and the corresponding connection list of the same room, and check, correct and feedback according to the different room request and the connection list of the corresponding security device.

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