An elevator digital intercom anti-crosstalk binding method
The elevator digital intercom anti-crosstalk binding method, which uses multi-dimensional pheromone judgment and weighted coefficient calculation, solves the problem of poor reliability of existing binding methods, realizes the accuracy and adaptability of device binding, and improves the stability of elevator intranet communication.
Patent Information
- Application Number
- CN202610305882.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-03-13
- Publication Date
- 2026-06-12
AI Technical Summary
The existing elevator digital intercom intranet binding method has a single judgment mechanism that relies on absolute thresholds, resulting in poor reliability and complicated operation. In particular, it is susceptible to signal attenuation and crosstalk in multi-shaft environments.
Employing a multi-dimensional pheromone judgment logic, the system constructs and iterates parameters such as signal strength, signal-to-noise ratio, and communication response time through the data center gateway, and calculates a comprehensive matching value by combining weighted coefficients to achieve device binding. It also designs independent binding methods for voice prompts and physical button operations to adapt to environmental changes.
It improves the accuracy and reliability of device binding, has the ability to adapt to changes in the environment, and ensures the stability of the binding relationship and the versatility of the system.
Smart Images
Figure CN122204078A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of elevator digital intercom technology, and in particular to an elevator digital intercom anti-crosstalk binding method. Background Technology
[0002] With the development of elevator communication systems, five-way intercom systems have entered the fully digital era. In the elevator shaft intranet subsystem, which consists of equipment such as the machine room main unit, car top unit, car unit, and pit unit, the industry commonly uses a power line carrier communication (H-PLC) solution for signal transmission. However, in practical engineering applications, especially in scenarios where the machine room terminal needs to manage multiple elevators simultaneously, or where multiple intranet lines are laid in parallel within the shaft, H-PLC communication is highly susceptible to signal crosstalk. This crosstalk can cause call logic confusion, packet loss, and other anomalies in the intercom system, severely affecting the reliability and stability of communication.
[0003] To address intranet crosstalk issues, existing technologies typically employ device binding, assigning specific devices to specific silos. Common binding schemes rely on silo numbers, device IDs, preset signal strength thresholds, or physically disconnecting different silos. However, when a data center gateway needs to establish connections with walkie-talkies in multiple silos, the communication channels between the gateway and other silo devices must be temporarily disconnected, which is cumbersome and disrupts the normal operation of other silos. Furthermore, binding methods based on signal strength thresholds rely on engineering experience to set an absolute value as the judgment criterion. In real-world environments, the crosstalk signal strength from other silos may not be weaker than that from the same silo, and cable aging over time can also lead to signal attenuation, making the reliability of using absolute signal strength as the judgment criterion poor.
[0004] Therefore, there is an urgent need for a stable and reliable triggering and identification mechanism that can adapt to environmental changes, so as to achieve stable, reliable, and adaptive anti-crosstalk binding of elevator digital intercom intranet. Summary of the Invention
[0005] To address or partially address the problems existing in related technologies, this application provides an elevator digital intercom anti-crosstalk binding method, which aims to solve the problems of existing elevator digital intercom intranet binding methods having a single judgment mechanism, relying on absolute thresholds, poor reliability, and complex operation.
[0006] This application provides a method for preventing crosstalk in elevator digital intercom systems, applied to an elevator five-way intercom digital intranet system consisting of a machine room gateway and multiple sets of elevator shaft intranets. Each set of elevator shaft intranets includes a machine room host, a car top operator, a car operator, and a pit operator. The method for preventing crosstalk in elevator digital intercom systems includes the following steps: Each intranet device's walkie-talkie is set as a node, and each node constructs a pheromone containing six types of parameters. The data center gateway acts as the management node, sending query commands to each intranet device node and receiving and recording the pheromone data replied by each node. The pheromone includes signal strength, signal-to-noise ratio, communication response time, well number, location number, and unique identification code. Pheromones iterate, and the data center gateway collects pheromones from different nodes at preset intervals, updates and stores them to reflect the current network status and device changes; Nodes with clearly defined binding relationships among pheromones are removed. Node matching is performed using relative numerical relationships. The relative pheromone data of the remaining nodes is judged through multi-dimensional judgment logic. Weighted coefficients are assigned to the judgment results of each dimension to calculate the comprehensive matching value. Nodes in the same well are determined based on the comprehensive matching value, and the device intercom is bound based on the comprehensive matching value.
[0007] Optionally, calculate the overall matching value, including: Based on the signal strength, signal-to-noise ratio, and communication response time of each node, the reliability relative to other nodes within the same shaft is calculated. The overall reliability of each node at a specific location number is then calculated by adding weights according to empirical proportions. In the formula, i is the position number. , , Preset weighting coefficients; The node combination with the highest overall credibility is determined to be equipment within the same shaft.
[0008] Optional, multi-dimensional judgment logic includes: First, remove nodes with clear binding relationships among the pheromones, and then perform logical judgment on unbound nodes; The multi-dimensional judgment logic only applies to the matching nodes of the car top machine and car body machine. The pit machine is not applicable due to its non-serial circuit relationship. Taking the machine room host node A as the query initiator, the matching car top / car body machine node is X, the already matched machine room host node in the same shaft is S, and the already matched car top machine node in the same shaft is B. The logical judgment formula is: In the formula, This represents the signal-to-noise ratio of the node X to be matched. This represents the signal-to-noise ratio of the host node S in the initiating data center; This represents the signal strength of the node X to be matched. Indicates the signal strength of host node S in the initiating data center; This indicates the communication response time of the node X to be matched. This indicates the communication response time of the initiating host node S in the data center. This indicates the communication response time of the matched car top machine node B in the same shaft. Logical operators The AND operation is performed only if all subconditions are true. If the result is true, node X is determined to meet the matching requirements of the same shaft; if any sub-condition is false, the result is false. If the result is false, remove the node. If there are multiple nodes to be matched, perform this logical judgment on each node and filter them out. After identifying nodes that are true, a weighted formula is used to calculate the overall matching value to determine the final bound node.
[0009] Optionally, node matching and judgment may also include: Due to crosstalk, when the number of pheromones collected by the data center gateway exceeds the actual number of shafts, the data from the expert system generated by the quantified environment training is used as an auxiliary basis for judgment, and the node binding is completed by combining the pheromone comprehensive judgment.
[0010] Optional pheromone iterations include: A single host in the computer room can send query commands to the host in the computer room, car top unit, car unit, and pit unit on the same intranet through two pheromone iteration methods: timed automatic iteration or manual triggering iteration. It can also receive and register the pheromone feedback from each node. After the device is paired with the walkie-talkie, the pheromones are continuously iterated regularly to address the impact of device aging, line changes, or device replacement.
[0011] Optionally, because the circuit between the pit sub-unit and the host in the computer room is not serial, the accuracy of comprehensive pheromone judgment is insufficient. Therefore, an independent binding method of voice prompt guidance and physical button operation is adopted to adapt to all unbound pit sub-units, such as new sub-units not bound, sub-units replaced across shafts, and sub-units replaced due to faults. After the pit sub-unit is powered on and connected to the elevator shaft intranet, the machine room gateway identifies the unbound device and marks it as a device to be bound. When a call is initiated to the pit sub-unit in the intranet, all unbound pit sub-units will ring simultaneously. On-site personnel in the pit can directly answer the ringing pit sub-unit and temporarily join the call without affecting on-site emergency communication. On-site personnel can initiate the binding trigger operation by pressing the alarm button on the pit sub-unit. After the intranet system detects the alarm call request of the unbound pit sub-unit, it will immediately trigger the unbound voice prompt. According to the voice prompts, maintenance personnel press and hold the alarm button of the pit sub-machine to enter the shaft number setting mode. At the same time, a voice broadcast will remind them to complete the confirmation of entering the setting mode. After entering the settings mode, the maintenance personnel can select the corresponding shaft number by pressing the alarm button a certain number of times according to the actual shaft number to which the pit submachine belongs; The pit sub-machine uploads the confirmed hoistway number, its own unique identification code, and location number binding information to the data center gateway; the data center gateway updates the selected hoistway number and establishes a unique binding relationship between it and the corresponding data center host, car top sub-machine, and car sub-machine, completing the intranet node association; After binding is completed, the data center gateway will synchronize the binding information of the corresponding pit sub-unit to the entire elevator digital intercom intranet; at the same time, the data center gateway will include the corresponding pit sub-unit in the regular pheromone iteration system, and regularly update the corresponding signal strength, signal-to-noise ratio, and communication response time parameters to adapt to subsequent scenarios such as line aging and environmental changes.
[0012] Optionally, when a bound sub-unit is used for replacement testing across different shafts, the sub-unit supports quick manual unbinding. After unbinding, it connects to the target shaft's intranet system and re-executes the elevator digital intercom anti-crosstalk binding method to rebind.
[0013] Optionally, the location number is uniquely assigned according to the equipment installation location: the location number of the main unit in the machine room is 1, the location number of the car top sub-machine is 2, the location number of the car sub-machine is 3, the location number of the pit sub-machine is 4, the location number of the auxiliary operator sub-machine is 5, and the location number of the disabled operator sub-machine is 6.
[0014] Optionally, the elevator digital intercom anti-crosstalk binding method is adapted to single elevator operation scenarios. The pheromone construction, iteration, and comprehensive judgment process in a single elevator scenario is consistent with that in a multi-elevator scenario, avoiding crosstalk from other shafts.
[0015] Optionally, the elevator digital intercom anti-crosstalk binding method also includes abnormal state handling: When a device malfunction, circuit disconnection, or incomplete installation is detected, an anomaly determination is triggered, the automated binding process is shut down, and the manual binding channel is activated to bind the device.
[0016] The technical solution provided in this application may include the following beneficial effects: Each intercom device is constructed as a pheromone node with multi-dimensional parameters including signal strength, signal-to-noise ratio, and communication response time. The data center gateway acts as the management node for pheromone construction, iteration, and comprehensive judgment. Matching is performed using the relative numerical relationships of multi-dimensional pheromones, combined with weighted coefficients to calculate a comprehensive matching value. This effectively overcomes the risk of misjudgment caused by signal attenuation due to cable aging and environmental changes, as well as abnormal crosstalk signal strength, improving the accuracy and reliability of device binding. A timed automatic iteration mechanism for pheromones enables the system to dynamically adjust to environmental changes, ensuring the long-term stability and effectiveness of the binding relationship. An independent binding scheme based on voice prompts and physical button operation is designed for pit-mounted handsets, enhancing the system's versatility and reliability.
[0017] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description
[0018] The above and other objects, features and advantages of this application will become more apparent from the more detailed description of exemplary embodiments thereof in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments thereof.
[0019] Figure 1 This is a schematic flowchart illustrating the elevator digital intercom anti-crosstalk binding method in an embodiment of this application; Figure 2 This is a schematic diagram of the architecture of a five-way intercom digital intranet system for elevators, as shown in an embodiment of this application. Detailed Implementation
[0020] Embodiments of this application will now be described in more detail with reference to the accompanying drawings. While embodiments of this application are shown in the drawings, it should be understood that this application may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to make this application more thorough and complete, and to fully convey the scope of this application to those skilled in the art.
[0021] The technical solutions of the embodiments of this application are described in detail below with reference to the accompanying drawings.
[0022] In some implementations, see Figure 2 The elevator five-way intercom digital intranet system includes: The intranet consists of multiple elevator shaft intranets, and the elevator shaft intranet devices are aggregated to the computer room gateway for unified management. Internal network equipment, including the main unit in the machine room of each hoistway, the car top machine, the car machine, and the pit machine; Internal network management node: Data center gateway.
[0023] In the elevator five-way intercom digital intranet system, all intercom devices are equipped with a unique chip ID as a node identification code. The preset machine room host location number is 1, car top sub-machine number is 2, car sub-machine number is 3, pit sub-machine number is 4, auxiliary operator sub-machine number is 5, and disabled operator sub-machine number is 6. The initial value of the hoistway number is 0. After binding, it is assigned the corresponding hoistway number, such as hoistway 1, hoistway 2, and hoistway 3.
[0024] Corresponding to the aforementioned system embodiments, this application also provides an elevator digital intercom anti-crosstalk binding method and corresponding embodiments, see [link to relevant documentation]. Figure 1 A method for anti-crosstalk binding of elevator digital intercom systems, comprising: S101. Configure each intranet device's walkie-talkie as a node. Each node constructs a pheromone containing six types of parameters. Using the data center gateway as the management node, send query commands to each intranet device node, and receive and record the pheromone data replied by each node. The pheromone includes signal strength, signal-to-noise ratio, communication response time, well number, location number, and unique identification code.
[0025] Specifically, the data center gateway triggers each node to construct pheromone data, treating each intercom device as an independent node. Each node automatically collects and generates a pheromone dataset containing six core parameters, including: Signal strength received by the node: The real-time acquired value of the device communication signal strength; Signal-to-noise ratio received by the node: The signal-to-noise ratio value of the device communication signal acquired in real time; Node communication response time: The time it takes for the device to respond to a query command. Before binding, this parameter is only collected initially and does not reflect the actual communication path. Shaft number: Initial value is 0, updated to the corresponding shaft number after binding is completed; Location number: Assigned according to preset rules, such as the location number of the host machine in hoistway 1 of node A is 1, the location number of the car top machine in hoistway 1 of node B is 2, and the location number of the car machine in hoistway 1 of node C is 3. Unique Identifier: The chip ID of each device ensures that the node's identity is unique and identifiable. All nodes upload the completed pheromone dataset to the data center gateway in real time. The data center gateway then establishes a pheromone database, completing the initial data storage.
[0026] S102. Pheromone Iteration: The data center gateway collects pheromones from different nodes at preset intervals, updates and stores them to reflect the current network status and equipment changes.
[0027] Specifically, pheromone iteration includes: a single data center host sends query commands to the data center host, car top unit, car unit, and pit unit on the same intranet in two ways: automatic iteration at a set time or manual triggering of iteration. It also receives and registers the pheromone feedback from each node.
[0028] After the device is paired with the walkie-talkie, the pheromones are continuously iterated regularly to address the impact of device aging, line changes, or device replacement.
[0029] S103. Remove nodes with clear binding relationships among the pheromones, use relative numerical relationships to make node matching judgments, use multi-dimensional judgment logic to judge the relative data of the pheromones of the remaining nodes, assign weighting coefficients to the judgment results of each dimension to calculate the comprehensive matching value, determine the nodes in the same well based on the comprehensive matching value, and bind the equipment intercoms based on the comprehensive matching value.
[0030] Specifically, the data center gateway screens the pheromone database, removes nodes with clear binding relationships, and only makes subsequent judgments on unbound nodes; The multi-dimensional judgment logic includes: If there are multiple nodes to be matched, this logical judgment is performed on each node separately. The multi-dimensional judgment logic only applies to the nodes to be matched for the car top machine and car body machine. The pit machine is not applicable to the logical judgment due to the non-serial relationship of the circuit. Taking the host node A in the machine room as the query initiator, the node to be matched for the car top / car body machine is X, the host node in the machine room that has been matched in the same shaft is S, and the node in the car top machine that has been matched in the same shaft is B. The logical judgment formula is: In the formula, This represents the signal-to-noise ratio of the node X to be matched. This represents the signal-to-noise ratio of the host node S in the initiating data center; This represents the signal strength of the node X to be matched. Indicates the signal strength of host node S in the initiating data center; This indicates the communication response time of the node X to be matched. This indicates the communication response time of the initiating host node S in the data center. This indicates the communication response time of the matched car top machine node B in the same shaft. Logical operators The AND operation is performed only if all subconditions are true. If the result is true, node X is determined to meet the matching requirements of the same shaft; if any sub-condition is false, the result is false. If the result is false, remove the node.
[0031] The overall matching value is calculated, including: For nodes whose logical judgment result is true, calculate their credibility relative to other nodes within the same shaft; calculate the overall credibility of each node at a specific location number by weighting it according to empirical proportions. In the formula, i is the position number. , , Preset weighting coefficients; The node combination with the highest overall credibility is determined to be equipment within the same shaft.
[0032] Specifically, after the car top machine and car body machine are calibrated, the independent binding of the pit machine is also included: Because the circuit between the pit sub-unit and the main unit in the machine room is not serial, the accuracy of pheromone comprehensive judgment is insufficient. Therefore, an independent binding method using voice prompts and physical button operation is adopted to adapt to all unbound pit sub-units, including new sub-units not yet bound, sub-units replaced across shafts, and sub-units replaced due to faults. After the pit sub-unit is powered on and connected to the elevator shaft intranet, the machine room gateway identifies the unbound device and marks it as a device to be bound. When a call to a pit sub-unit is initiated in the intranet, all unbound pit sub-units ring simultaneously. On-site personnel in the pit can directly answer the ringing pit sub-unit and temporarily join the call without affecting on-site emergency communication. On-site personnel can also actively initiate the binding trigger operation by pressing the local alarm button on the pit sub-unit to initiate a call. After the intranet system detects the alarm call request from an unbound pit sub-unit, it immediately triggers an unbound voice prompt. Following the voice prompts, maintenance personnel press and hold the alarm button on the pit sub-machine to enter the shaft number setting mode. A voice announcement confirms entry into the setting mode. Once in mode, personnel press the alarm button a specified number of times to select the corresponding shaft number based on the actual shaft number of the pit sub-machine. The pit sub-machine uploads the confirmed shaft number, its unique identifier, and location number to the machine room gateway. The machine room gateway updates the selected shaft number, establishing a unique binding relationship between it and the corresponding machine room host, car top sub-machine, and car sub-machine, completing the intranet node association. After binding, the machine room gateway synchronizes the binding information of the corresponding pit sub-machine to the entire elevator digital intercom intranet. Simultaneously, the machine room gateway incorporates the corresponding pit sub-machine into the regular pheromone iteration system, periodically updating the corresponding signal strength, signal-to-noise ratio, and communication response time parameters to adapt to future scenarios such as line aging and environmental changes.
[0033] In some implementations, node matching judgment also includes: when the number of walkie-talkie node pheromones collected by the data center gateway exceeds the actual number of shafts due to crosstalk, the node binding is completed by using expert system data generated by quantified environment training as an auxiliary judgment basis and combining it with pheromone comprehensive judgment.
[0034] In some implementations, the elevator digital intercom anti-crosstalk binding method also includes binding methods for other special cases: When a bound sub-unit is replaced for testing across different shafts, the sub-unit supports quick manual unbinding. After unbinding, it connects to the target shaft's intranet system and re-executes the elevator digital intercom anti-crosstalk binding method to rebind.
[0035] In a single-elevator operation scenario, the process of constructing, iterating, and comprehensively judging pheromones is consistent with that in a multi-elevator scenario, which can avoid crosstalk from other shafts.
[0036] Abnormal status handling: When a device malfunction, circuit disconnection, or incomplete installation is detected, an abnormality judgment is triggered, the automated binding process is closed, and the manual binding channel is started to bind the device.
[0037] In some implementations, corresponding to the aforementioned application function implementation method embodiments, this application also provides a specific implementation process example of an elevator digital intercom anti-crosstalk binding method, including: I. Preliminary Preparations After the data center gateway completes its initial configuration, it enables intranet communication. All data center hosts, car top units, car units, and pit units in the hoistway are powered on and connected to the corresponding hoistway intranet. Each device automatically sends network access information to the data center gateway. The data center gateway identifies all nodes and marks them as unbound. At the same time, it initializes the ant colony algorithm parameters and presets the pheromone weighting coefficient. =0.4、 =0.4、 =0.2, the weighting coefficient can be adjusted according to the on-site environment, the pheromone timed automatic iteration cycle is set to 24 hours, and the manual triggering iteration function is retained.
[0038] II. Automated Binding Process for Server Room Host, Car Top Machine, and Car Machine For the main unit in the hoistway machine room, the car top machine, and the car machine, a three-step process based on the ant colony algorithm is implemented: pheromone construction, pheromone iteration, and comprehensive pheromone judgment. Figure 2 As shown, taking the host machine in hoistway 1 (node A) as the query initiator, and the host machines in hoistway 2 (node E), hoistway 3 (node I), hoistway 1 car top machine (node B), hoistway 2 car top machine (node F), hoistway 3 car top machine (node J), hoistway 1 car machine (node C), hoistway 2 car machine (node G), and hoistway 3 car machine (node K) as examples.
[0039] (I) Pheromones The data center gateway triggers each node to construct pheromone data, treating each intercom device as an independent node. Each node automatically collects and generates a pheromone dataset containing six core parameters, as detailed below: Received Signal Strength (RSSI): A value representing the strength of the device's communication signal acquired in real time. Signal-to-noise ratio (SNR) received by the node: The signal-to-noise ratio value of the device communication signal collected in real time; Node communication response time (RT): The time it takes for the device to respond to a query command. Before binding, this parameter is only collected initially and does not reflect the actual communication path. Shaft number: Initial value is 0, updated to the corresponding shaft number after binding is completed; Location number: Assigned according to preset rules, such as the location number of the host machine in hoistway 1 of node A is 1, the location number of the car top machine in hoistway 1 of node B is 2, and the location number of the car machine in hoistway 1 of node C is 3. Unique Identifier: The chip ID of each device, ensuring that the node's identity is unique and identifiable.
[0040] All nodes will upload the completed pheromone dataset to the data center gateway in real time. The data center gateway will then establish a pheromone database to complete the initial data storage.
[0041] (II) Pheromone Iteration Pheromon iteration is initiated by the host in the data center and supports two modes: scheduled automatic iteration and manual triggering. Scheduled automatic iteration is executed automatically on a 24-hour cycle, starting from node A and sending query commands to various types of sub-machines in sequence to complete pheromone collection and registration. Specific steps are as follows: Node A sends a pheromone query command to the other host nodes E and I in the data center. After receiving the command, nodes E and I return their own pheromone datasets. Node A receives the data and registers it in the data center gateway pheromone database. Node A sends a pheromone query command to all car top machine nodes B, F, and J. Nodes B, F, and J return their own pheromone datasets, and node A receives and completes the registration. Node A sends a pheromone query command to all car sub-nodes C, G, and K. Nodes C, G, and K return their own pheromone datasets, which Node A receives and completes the registration. Node A sends a pheromone query command to all pit slave nodes. Each pit slave returns a pheromone dataset. Node A receives and completes the registration. The pit slave pheromone is only used for data storage and does not participate in subsequent comprehensive judgment. After the iteration is completed, the data center gateway updates the pheromone database in real time to ensure that all node data is up-to-date. After binding is completed, the system still performs scheduled automatic iterations on a 24-hour cycle to adapt to parameter changes caused by line aging and environmental changes, providing data support for subsequent equipment replacement and fault handling.
[0042] (III) Comprehensive judgment of pheromones The pheromone comprehensive judgment adopts a relative numerical relationship judgment, abandoning the traditional absolute data judgment method. First, the bound nodes are eliminated, then the unbound nodes that meet the conditions are filtered through multi-dimensional logical judgment, and finally the comprehensive matching value is calculated by a weighted formula to determine the nodes in the same well and complete the binding. The specific execution steps are as follows: Remove bound nodes: The data center gateway screens the pheromone database and removes nodes with clear binding relationships, only making subsequent judgments on unbound nodes; Multi-dimensional logical judgment: Taking node A as the initiating point, perform the following logical judgment on the unbound car top machine and car machine nodes (F, J, G, K), and the judgment formula is: Logical operators The expression "and" means that the condition is true only if all subconditions are true. If the result is true, node X is determined to meet the matching requirements of the same shaft. If any sub-condition is not met, the node is removed. Of the nodes to be matched F, J, G, and K, only the logical judgment results for nodes B and C are true; the remaining nodes are removed.
[0043] Credibility assignment: For nodes B and C whose logical judgment results are true, credibility is assigned to their signal strength, signal-to-noise ratio, and response time respectively. The assignment rule is: high credibility is 1, low credibility is 0, and no judgment is 0.5. In this embodiment, the credibility of all three parameters of nodes B and C is determined to be 1.
[0044] Calculate the overall matching value: Calculate the overall matching value of each node according to the preset weighted formula, which is: Substitute parameters =0.4、 =0.4、 =0.2, The overall matching value P2 for node B (position number 2) is 0.4×1 + 0.4×1 + 0.2×1 = 1; The overall matching value P3 for node C (position number 3) is P3 = 0.4 × 1 + 0.4 × 1 + 0.2 × 1 = 1; Binding complete: The higher the comprehensive matching value, the higher the matching degree between the node and the initiating host in the data center. In this embodiment, the comprehensive matching values of nodes B and C are both the maximum values. The data center gateway determines that nodes B and C are nodes in the same shaft as node A, updates the shaft number of nodes A, B, and C from 0 to 1, establishes a unique binding relationship, and completes the automatic binding of the host in the data center of shaft 1, the car top machine, and the car machine.
[0045] Repeat the above steps, starting with host node E in hoistway 2 and host node I in hoistway 3, to complete the automated binding of host machines in hoistway 2 and hoistway 3, car top machine, and car machine.
[0046] (iv) Independent Binding Process of Pit Submachine Because the pit sub-unit has a non-serial relationship with the main unit circuit in the computer room, the accuracy of pheromone comprehensive judgment is insufficient. Therefore, an independent binding method is adopted, which combines voice prompt guidance with physical button operation. This method is suitable for scenarios such as brand new unbound pit sub-units, faulty sub-unit replacements, and sub-unit replacements across shafts. Taking the pit sub-unit in shaft 1 as an example, the specific implementation steps are as follows: Unbound status identification: After the pit sub-machine of shaft 1 is powered on and connected to the intranet, the data center gateway identifies its shaft number as 0, marks it as an unbound device to be matched, and stores its pheromone dataset in the pheromone database.
[0047] Call Response: When a call to a pit sub-unit is initiated from within the intranet, all unbound pit sub-units will ring simultaneously. On-site personnel in the pit can answer directly and temporarily join the call without triggering the binding process, ensuring on-site emergency communication.
[0048] Triggering the binding process: On-site maintenance personnel press the alarm button on the pit sub-unit of shaft 1 to initiate a call. After the data center gateway detects the alarm request of the unbound pit sub-unit, it triggers the voice prompt function. The pit sub-unit announces "Equipment not bound, please press and hold the alarm button to enter the setting mode".
[0049] Entering the setting mode: According to the voice prompt, the maintenance personnel press and hold the alarm button for 10 seconds. After the pit sub-unit detects the button signal for 10 seconds, it exits the call mode and enters the shaft number setting mode, while announcing "Setting mode has been entered. Please press the alarm button to select the shaft number" to complete the mode confirmation.
[0050] Shaft number selection and confirmation: The maintenance personnel press the alarm button once according to the actual shaft 1 to which the pit sub-unit belongs. The pit sub-unit will announce "Shaft 1 selected" in real time for the maintenance personnel to verify. After verification, the button operation is stopped. The pit sub-unit will automatically confirm the shaft number selection result after 5 seconds of no button trigger.
[0051] Binding Information Upload and System Confirmation: The pit sub-unit of shaft 1 uploads the confirmed shaft number 1, its own chip ID, location number 4 and other binding information to the data center gateway. After receiving the information, the data center gateway updates the shaft number from 0 to 1, establishes a unique binding relationship with the shaft 1 data center host, car top sub-unit, and car sub-unit, and sends a binding success command to the pit sub-unit.
[0052] Local confirmation: After receiving the binding success command, the pit submachine announces "Binding successful, belonging to shaft 1", completing the local binding confirmation.
[0053] Status synchronization: The data center gateway synchronizes the binding information of the pit sub-machine of shaft 1 to the entire intranet. When the intranet initiates a call to the pit sub-machine, only the pit sub-machine that has been bound to shaft 1 will ring, avoiding cross-shaft interference. At the same time, the pit sub-machine is included in the pheromone timed iteration system and its parameters are updated regularly.
[0054] Following the steps above, complete the independent binding of the pit sub-units in shaft 2 and shaft 3 in sequence. Multiple pit sub-units in shafts can be bound sequentially. The data center gateway completes the binding one by one according to the order of receiving information, without interfering with each other.
[0055] III. Adaptation and Implementation for Special Scenarios For special scenarios commonly encountered in actual engineering projects, such as single-elevator scenarios, excessive node counts due to crosstalk, equipment failure / not installed, replacement of sub-machines across shafts, and replacement of brand-new sub-machines, a dedicated adaptation solution is designed to ensure the universality and reliability of the binding process. The specific implementation is as follows: (a) Single-elevator scenario In a single-elevator scenario, the intranet contains only one set of shaft equipment. The automatic binding of the machine room host, car top sub-machine, and car sub-machine is still completed according to the above-mentioned pheromone construction, iteration, and comprehensive judgment process. The pit sub-machine is executed according to an independent binding process. By default, the risk of crosstalk from surrounding shafts is considered, and the judgment logic is consistent with that of the multi-elevator scenario, requiring no additional configuration.
[0056] (ii) Scenarios where crosstalk leads to excessive pheromone levels at nodes When the number of walkie-talkie node pheromones collected by the data center gateway exceeds the actual number of shafts (e.g., collecting information from 4 or more nodes across 3 shafts), the system uses expert system data generated by quantization environment training as an auxiliary judgment criterion to address cross-shaft crosstalk. Combined with the aforementioned multi-dimensional logical judgments and comprehensive matching value calculations, invalid nodes caused by crosstalk are eliminated, and truly matching nodes are selected and bound.
[0057] (iii) Scenarios where equipment is not installed / faulty / circuit disconnected When not all on-site equipment is installed, a walkie-talkie in a shaft malfunctions, or the communication circuit is disconnected, the data center gateway detects abnormal node pheromone collection, triggers an abnormal state judgment, automatically shuts down the automated binding process, and sends a prompt to the maintenance personnel. At this time, the manual binding method is enabled, and the maintenance personnel manually configure the node shaft number and binding relationship on the data center gateway to complete the device binding.
[0058] (iv) Cross-shaft replacement of submachine scenario When replacing the bound submachine of shaft 2 to shaft 1 for testing on-site, first perform a quick manual unbinding on node F, clear its binding relationship at the data center gateway, and restore the shaft number to 0; after unbinding, node F accesses the internal network of shaft 1, and the data center gateway marks it as an unbound node. Then, according to the above automated binding process, pheromone construction, iteration, and comprehensive judgment are re-executed to complete the rebinding with the host in the data center of shaft 1.
[0059] (V) Replacement of the new three-steamer machine in the following scenarios On-site replacement with brand new, unbound three-part sub-units: car top sub-unit, car body sub-unit, and pit sub-unit. Once the sub-units are powered on and connected to the intranet, they are marked as unbound. If it is a car top / car body sub-unit, the above-mentioned automated binding process is automatically triggered. If it is a pit sub-unit, after initiating a call, the voice prompts of the independent binding process are triggered directly, and the binding is completed step by step without any additional initialization operations.
[0060] IV. Post-binding maintenance and iteration After all devices are bound, they will enter the routine operation and maintenance phase: Pheromones are iterated on a timed basis: Pheromones are automatically iterated on a 24-hour cycle, and parameters such as signal strength, signal-to-noise ratio, and response time of each node are updated in real time to adapt to parameter changes caused by line aging and changes in the engineering environment.
[0061] Manual Iteration Trigger: Operation and maintenance personnel can manually trigger pheromone iteration at the data center gateway to update node data in a timely manner according to on-site maintenance needs.
[0062] Binding relationship update: When equipment replacement, cross-shaft commissioning, or other operations are performed on site, the system automatically identifies unbound nodes based on the equipment status, re-executes the corresponding binding process, and updates the binding relationship.
[0063] Data storage and traceability: The data center gateway continuously stores the historical pheromone data and binding relationship change records of all nodes, supporting operation and maintenance personnel to query and trace, which facilitates fault diagnosis and on-site maintenance.
[0064] The various embodiments of this application have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.
Claims
1. A method for preventing crosstalk in elevator digital intercom systems, applied to an elevator five-way intercom digital intranet system consisting of a machine room gateway and multiple sets of elevator shaft intranets, wherein each set of elevator shaft intranets includes a machine room host, a car top operator, a car operator, and a pit operator, characterized in that, include: Each intranet device's walkie-talkie is configured as a node, and each node constructs a pheromone containing six types of parameters. The data center gateway acts as the management node, sending query commands to each intranet device node and receiving and recording the pheromone data replied by each node. The pheromone includes signal strength, signal-to-noise ratio, communication response time, well number, location number, and unique identification code. Pheromones are iterated, and the data center gateway collects pheromones from different nodes at preset intervals, updates and stores them to reflect the current network status and device changes. Nodes with clearly defined binding relationships among pheromones are removed. Node matching is performed using relative numerical relationships. The relative pheromone data of the remaining nodes is judged through multi-dimensional judgment logic. Weighted coefficients are assigned to the judgment results of each dimension to calculate the comprehensive matching value. Nodes in the same well are determined based on the comprehensive matching value, and the device intercom is bound based on the comprehensive matching value.
2. The elevator digital intercom anti-crosstalk binding method according to claim 1, characterized in that, The calculation of the comprehensive matching value includes: Based on the signal strength, signal-to-noise ratio, and communication response time of each node, the reliability relative to other nodes within the same shaft is calculated. The overall reliability of each node at a specific location number is then calculated by adding weights according to empirical proportions. In the formula, i is the position number. , , Preset weighting coefficients; The node combination with the highest overall credibility is determined to be equipment within the same shaft.
3. The elevator digital intercom anti-crosstalk binding method according to claim 1, characterized in that, The multi-dimensional judgment logic includes: First, remove nodes with clear binding relationships among the pheromones, and then perform logical judgment on unbound nodes; The multi-dimensional judgment logic only applies to the matching nodes of the car top machine and car body machine. The pit machine is not applicable due to its non-serial circuit relationship. Taking the machine room host node A as the query initiator, the matching car top / car body machine node is X, the already matched machine room host node in the same shaft is S, and the already matched car top machine node in the same shaft is B. The logical judgment formula is: In the formula, This represents the signal-to-noise ratio of the node X to be matched. This represents the signal-to-noise ratio of the host node S in the initiating data center; This represents the signal strength of the node X to be matched. Indicates the signal strength of host node S in the initiating data center; This indicates the communication response time of the node X to be matched. This indicates the communication response time of the initiating host node S in the data center. This indicates the communication response time of the matched car top machine node B in the same shaft. Logical operators The AND operation is performed only if all subconditions are true. If the result is true, node X is determined to meet the matching requirements of the same shaft; if any sub-condition is false, the result is false. If the result is false, remove the node. If there are multiple nodes to be matched, perform this logical judgment on each node and filter them out. After identifying nodes that are true, a weighted formula is used to calculate the overall matching value to determine the final bound node.
4. The elevator digital intercom anti-crosstalk binding method according to claim 1, characterized in that, The node matching judgment also includes: Due to crosstalk, when the number of pheromones collected by the data center gateway exceeds the actual number of shafts, the data from the expert system generated by the quantified environment training is used as an auxiliary basis for judgment, and the node binding is completed by combining the pheromone comprehensive judgment.
5. The elevator digital intercom anti-crosstalk binding method according to claim 1, characterized in that, The pheromone iteration includes: The computer room host sends query commands to the computer room host, car top unit, car unit, and pit unit on the same intranet in two pheromone iteration methods: automatic iteration at timed intervals or manual triggering iteration. It also receives and registers the pheromone feedback from each node. After the device is paired with the walkie-talkie, the pheromones are continuously iterated regularly to address the impact of device aging, line changes, or device replacement.
6. The elevator digital intercom anti-crosstalk binding method according to claim 1, characterized in that: Because the circuit between the pit sub-unit and the host computer in the computer room is not serial, the accuracy of pheromone comprehensive judgment is insufficient. Therefore, an independent binding method of voice prompt guidance and physical button operation is adopted to adapt to all unbound pit sub-units in the following states: new sub-units not bound, sub-units replaced across shafts, and sub-units replaced due to faults. After the pit sub-unit is powered on and connected to the elevator shaft intranet, the machine room gateway identifies the unbound device and marks it as a device to be bound. When a call is initiated to the pit sub-unit in the intranet, all unbound pit sub-units will ring simultaneously. On-site personnel in the pit can directly answer the ringing pit sub-unit and temporarily join the call without affecting on-site emergency communication. On-site personnel can initiate the binding trigger operation by pressing the alarm button on the pit sub-unit. After the intranet system detects the alarm call request of the unbound pit sub-unit, it will immediately trigger the unbound voice prompt. According to the voice prompts, maintenance personnel press and hold the alarm button of the pit sub-machine to enter the shaft number setting mode. At the same time, a voice broadcast will remind them to complete the confirmation of entering the setting mode. After entering the settings mode, the maintenance personnel can select the corresponding shaft number by pressing the alarm button a certain number of times according to the actual shaft number to which the pit submachine belongs; The pit sub-machine uploads the confirmed hoistway number, its own unique identification code, and location number binding information to the data center gateway; the data center gateway updates the selected hoistway number and establishes a unique binding relationship between it and the corresponding data center host, car top sub-machine, and car sub-machine, completing the intranet node association; After binding is completed, the data center gateway will synchronize the binding information of the corresponding pit sub-unit to the entire elevator digital intercom intranet; at the same time, the data center gateway will include the corresponding pit sub-unit in the regular pheromone iteration system, and regularly update the corresponding signal strength, signal-to-noise ratio, and communication response time parameters to adapt to subsequent line aging and environmental change scenarios.
7. The elevator digital intercom anti-crosstalk binding method according to claim 1, characterized in that, When a bound sub-unit is replaced for testing across different shafts, the sub-unit supports quick manual unbinding. After unbinding, it connects to the target shaft's intranet system and re-executes the elevator digital intercom anti-crosstalk binding method to rebind.
8. The elevator digital intercom anti-crosstalk binding method according to claim 1, characterized in that: The location number is uniquely assigned according to the equipment installation location. The location number of the main unit in the machine room is 1, the location number of the car top sub-machine is 2, the location number of the car sub-machine is 3, the location number of the pit sub-machine is 4, the location number of the auxiliary operator sub-machine is 5, and the location number of the residual operator sub-machine is 6.
9. The elevator digital intercom anti-crosstalk binding method according to claim 1, characterized in that: It is adapted to single elevator operation scenarios. The process of pheromone construction, iteration, and comprehensive judgment in single elevator scenarios is consistent with that in multi-elevator scenarios, avoiding crosstalk from other shafts.
10. The elevator digital intercom anti-crosstalk binding method according to claim 1, characterized in that, It also includes abnormal state handling: When a device malfunction, circuit disconnection, or incomplete installation is detected, an anomaly determination is triggered, the automated binding process is shut down, and the manual binding channel is activated to bind the device.