A parallel control system for different brands of elevators

Abstract

The utility model discloses a different brand elevator parallelly connected control system, this system includes parallelly connected general controller, A car controller, A landing controller, B car controller and B landing controller, and is connected through CAN bus communication module between each controller, and adopts the communication module and power module of independent in elevator original control system. When working, car and landing controller receive and cut off original button signal, and send to parallelly connected general controller after digital coding chip coding, and general controller combines the uplink signal of acquisition, downlink signal, position signal, obtains elevator position and boarding demand, sends out control signal, and then through each controller with equivalent button signal reverse transmission to original elevator communication board, drives elevator operation. This system does not need to change elevator original control logic, can realize the efficient parallel connection of different brand elevators, reduces the conflict of stopping and improves operation efficiency.

Description

Technical Field

[0001] This utility model relates to the field of elevator control technology, specifically a parallel control system for elevators of different brands. Background Technology

[0002] Elevators that have been in use for more than 10 years often require major overhauls or even replacements due to aging components and technological upgrades. For parallel elevator projects, funding constraints often necessitate two separate upgrades or overhauls, with significant time gaps between the two procurement and construction phases. Changes in brand and control systems frequently occur, making it impossible to maintain parallel operation between the two elevators during the upgrade process. Furthermore, if different brands are used, a single / double-floor configuration can cause inconvenience when one elevator stops; conversely, not using a single / double-floor configuration significantly increases the likelihood of both elevators stopping at the same floor simultaneously, reducing efficiency. Utility Model Content

[0003] The technical problem this utility model aims to solve is to provide a parallel control system for elevators of different brands, in order to address the difficulty that the two systems cannot communicate directly and connect in parallel before and after major renovations or when the brand system is changed.

[0004] To solve the above-mentioned technical problems, the embodiments of this utility model provide the following technical solutions: A parallel control system for elevators of different brands includes a parallel main controller (1), an A car controller (2), an A floor controller (3), a B car controller (4), and a B floor controller (5). The parallel main controller (1) is communicatively connected to the A car controller (2), the A floor controller (3), the B car controller (4), and the B floor controller (5). The parallel main controller (1) is installed in the machine room. The elevator operation control signals are transmitted in reverse through the A car controller (2), the A floor controller (3), the B car controller (4), and the B floor controller (5) to the car communication board and the floor communication board of the A elevator and the B elevator, respectively, to start the elevator.

[0005] Optionally, the parallel main controller (1), A car controller (2), A floor controller (3), B car controller (4), and B floor controller (5) adopt communication modules and power supply modules independent of the original control systems of elevator A and elevator B.

[0006] Optionally, the input acquisition signals of the A car controller (2), A floor controller (3), B car controller (4), and B floor controller (5) are optically isolated inputs, and the output control signals are outputs using miniature relay switches.

[0007] Optionally, the control chips of the parallel main controller (1), A car controller (2), A floor controller (3), B car controller (4), and B floor controller (5) are ARM processors.

[0008] Optionally, the A car controller (2), A floor controller (3), B car controller (4), and B floor controller (5) all include digital encoding chips.

[0009] Optionally, the power module includes a UPS power supply, which is electrically connected to the elevator's dedicated mains power line.

[0010] Optionally, the communication module adopts a CAN bus communication module.

[0011] The beneficial effects of the above-mentioned technical solution of this utility model are as follows: This utility model has a simple structure, is safe and reliable, does not affect the safety performance of the original system, has low equipment cost, is not limited by elevator brand or system, and solves the problem that the two systems cannot communicate directly and cannot achieve parallel connection before and after major renovation of parallel elevators or after brand and system change. Attached Figure Description

[0012] Figure 1 This is a block diagram illustrating the principle of a parallel control system for elevators of different brands according to this utility model. Figure 2 This is a schematic diagram of the I / O interface board circuit added to this utility model based on the existing technology.

[0013] Figure 3 This is a schematic diagram of a switching button added to this utility model based on existing technology.

[0014] Figure 4 This utility model is a circuit diagram of the encoder output interface.

[0015] Figure 5 This is the interface circuit diagram for inputting the acquired signal according to this utility model. Detailed Implementation

[0016] To make the technical problems, technical solutions and advantages of this utility model clearer, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.

[0017] like Figure 1As shown, this utility model proposes a parallel control system for elevators of different brands, including a parallel main controller 1, an A-car controller 2, an A-land controller 3, a B-car controller 4, and a B-land controller 5. The parallel main controller 1 is communicatively connected to the A-car controller 2, A-land controller 3, B-car controller 4, and B-land controller 5. The parallel main controller 1 is installed in the machine room. The elevator operation control signals are transmitted in reverse through the A-car controller 2, A-land controller 3, B-car controller 4, and B-land controller 5 as equivalent button signals to the respective car communication boards and land communication boards of elevators A and B to start the elevators.

[0018] Specifically, A car controller 2 and B car controller 4 receive and intercept the car button signals, encode them, and send them to the parallel main controller 1; at the same time, A floor controller 3 and B floor controller 5 also receive and intercept the floor button signals, encode them, and send them to the parallel main controller 1.

[0019] After receiving the up / down signals and position signals collected from elevators A and B, the parallel main controller 1 combines the signals received by the A car controller 2, A floor controller 3, B car controller 4, and B floor controller 5 to obtain the current position of elevators A and B and the passenger boarding signals, and issues elevator operation control signals. The elevator operation control signals are transmitted in reverse through the A car controller 2, A floor controller 3, B car controller 4, and B floor controller 5 as equivalent button signals to the respective car communication boards and floor communication boards of elevators A and B to start the elevators.

[0020] The parallel main controller 1, A car controller 2, A landing controller 3, B car controller 4, and B landing controller 5 employ communication and power supply modules independent of the original control systems of elevators A and B. The power supply module includes a UPS power supply, which is electrically connected to the elevator's dedicated AC power line. The communication module uses a CAN bus communication module.

[0021] The input signals of car controller 2 (A-car controller 2), floor A controller 3, car B controller 4, and floor B controller 5 are optically isolated to improve the anti-interference capability of the acquired signals. The output control signals use miniature relay switches to improve operating efficiency. For example... Figure 5 As shown, the interface circuit for input acquisition signals is as follows: the closing speed limit signal, opening speed limit signal, closing position signal, opening position signal, opening signal, closing signal, and safety signal from the door operator are respectively processed by optocoupler isolation and then output to the main control chip of the parallel main controller 1 through the IOPE1 to IOPE7 pins.

[0022] The control chips for the parallel main controller 1, A car controller 2, A floor controller 3, B car controller 4, and B floor controller 5 are ARM processors. These processors receive and process acquired signals, and then send signals to control the elevator's start and stop. The ARM processors used are either STM32F103 or LPC11C14 ARM microprocessors.

[0023] Car controller 2 (A-car controller 2), landing controller 3 (A-floor controller 3), car controller 4 (B-car controller 4), and landing controller 5 (B-floor controller 5) all include digital encoding chips. These chips encode the control signals from these controllers and send them to the parallel master controller 1. The digital encoding chips can be either the MT6825 magnetic encoder chip or the TS5246N series chip. Figure 4 This is the encoder output interface circuit. CODER-X and CODER-Y are the elevator motor encoder signals, which are output to the parallel main controller 1.

[0024] The working principle of this utility model is as follows: This utility model relates to a parallel control system for elevators of different brands, mainly composed of a parallel main controller, an A-car controller, an A-land controller, a B-car controller, and a B-land controller. Each controller is connected via a CAN bus communication module and uses a communication module and power supply module (the power supply module includes a UPS power supply, electrically connected to the elevator's dedicated AC power line) independent of the original elevator control system. Its working principle is as follows: the car and land controllers first receive and intercept the original button signals, encode them using a digital encoding chip, and then send them to the parallel main controller. The parallel main controller combines the collected up / down signals and position signals to obtain the elevator position and passenger demand, issues control signals, and then transmits them back to the original elevator communication board through each controller as equivalent button signals, driving the elevator operation.

[0025] like Figure 2 The diagram shown is a schematic of the I / O interface board circuitry added based on existing technology in a practical application of this utility model. Figure 3 The diagram shows a new switching button added to the existing technology in this utility model. The contact J1 of the relay J in the newly added control system is connected to the original floor / car call panel, but whether it connects to call from elevator A or elevator B depends on the current status and position of elevators A and B. Taking an elevator of brand A and an elevator of brand B in an office building as an example, when the two work together through the parallel control system of these different brand elevators, the specific usage process is as follows: If a passenger presses the up button on the 3rd floor, the B-floor controller will immediately receive and intercept the button signal, encode it via a digital encoding chip, and send it to the parallel main controller. Simultaneously, if the A-floor controller does not detect any other floor signals, the A-car controller and B-car controller will provide real-time feedback on the current location of elevators A and B (assuming elevator A is waiting on the 5th floor and elevator B is waiting on the 1st floor) and their up / down status (both stationary).

[0026] After receiving these signals, the parallel master controller combines the position signals and passenger demand to determine that elevator B is on the 1st floor and closer to the 3rd floor. Therefore, elevator B is prioritized to respond to the upward demand from the 3rd floor. Subsequently, the master controller sends a control signal, which is transmitted to the original car communication board and floor communication board of elevator B in the form of equivalent button signals through the B floor controller and B car controller, instructing elevator B to move upward from the 1st floor to the 3rd floor.

[0027] At this moment, if a passenger enters elevator A on the 5th floor and presses the down button for the 8th floor, the A car controller receives and intercepts the signal, encodes it, and sends it to the parallel main controller. The main controller, considering elevator A's current position on the 5th floor, elevator B's current movement from the 1st to the 3rd floor, and the passenger demand on the 8th floor, determines that elevator A does not need to wait and can directly respond to the internal command. Therefore, it sends a control signal, transmitted through the A car controller to elevator A's original communication board, instructing elevator A to ascend from the 5th floor to the 8th floor.

[0028] Throughout the process, the system transmits signals in real time through an independent CAN bus communication module. The optocoupler isolation inputs and miniature relay switch outputs of each controller ensure signal stability, and the independent power supply module (including UPS) ensures reliable power supply. This not only avoids interfering with the original control systems of elevators A and B, but also achieves efficient collaboration between the two elevators of different brands, reduces stopping conflicts, and improves operating efficiency.

[0029] The core advantage of this utility model is that it can overcome the communication limitations of different brands of elevators without modifying the original control function of the elevator, realize efficient parallel connection, reduce stopping conflicts, improve operating efficiency, and effectively solve the problem that parallel elevators cannot be directly communicated and connected before and after major renovation or brand system replacement. Moreover, it has a simple structure, is safe and reliable, has low equipment cost, and does not affect the safety performance of the original system.

[0030] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A parallel control system for elevators of different brands, characterized in that, The system includes a parallel main controller (1), an A-car controller (2), an A-floor controller (3), a B-car controller (4), and a B-floor controller (5). The parallel main controller (1) is communicatively connected to the A-car controller (2), the A-floor controller (3), the B-car controller (4), and the B-floor controller (5). The parallel main controller (1) is installed in the machine room. The elevator's operation control signals are transmitted in reverse through the A-car controller (2), the A-floor controller (3), the B-car controller (4), and the B-floor controller (5) in the form of equivalent button signals to the respective car communication boards and floor communication boards of elevators A and B to start the elevator.

2. The parallel control system for elevators of different brands according to claim 1, characterized in that, The parallel main controller (1), A car controller (2), A floor controller (3), B car controller (4), and B floor controller (5) adopt communication modules and power supply modules independent of the original control systems of elevators A and B.

3. The parallel control system for elevators of different brands according to claim 1, characterized in that, The input acquisition signals of the A car controller (2), A floor controller (3), B car controller (4), and B floor controller (5) are optically isolated inputs, and the output control signals are outputs using miniature relay switches.

4. The parallel control system for elevators of different brands according to claim 1, characterized in that, The control chips of the parallel main controller (1), A car controller (2), A floor controller (3), B car controller (4), and B floor controller (5) are ARM processors.

5. The parallel control system for elevators of different brands according to claim 1, characterized in that, The A car controller (2), A floor controller (3), B car controller (4), and B floor controller (5) all include digital encoding chips.

6. The parallel control system for elevators of different brands according to claim 2, characterized in that, The power module includes a UPS power supply, which is electrically connected to the elevator's dedicated mains power line.

7. The parallel control system for elevators of different brands according to claim 2, characterized in that, The communication module uses a CAN bus communication module.

Images