Intelligent room central control system

Abstract

The utility model discloses an intelligent room central control system. Comprising a networking room controller, a junction box, a distribution box, a bus isolator, an isolation transmitter, a photoelectric coupler, an electronic door lock, a centralized controller, an identification card, a fan temperature controller, a networking safe box, an RJ45 broadband network interface, a do-not-disturb three-in-one doorbell, a human body infrared sensor, a wall switch, an emergency call button, a doorbell, a lamp system and an air conditioning system. Compared with the prior art, the bus isolator is additionally arranged, and a single bus is split into independent communication channels through differential signal amplitude detection and dynamic impedance matching; a photoelectric coupler is additionally arranged to block strong current interference; and an isolation transmitter is additionally arranged, so that more accurate control is realized, and meanwhile, short-circuit protection can be realized.

Description

Technical Field

[0001] This utility model relates to the field of low-voltage electrical management and control, specifically to an intelligent room central control system. Background Technology

[0002] The room central control system utilizes computer control, communication, and management technologies to form a dedicated network based on the RCU (Room Control Unit) within the room. It enables intelligent management and control of the room's security system, access control system, central air conditioning system, intelligent lighting system, and service system, reflecting the room's status, needs, service conditions, and equipment status in real time. This assists park management in conducting real-time control and analysis of room equipment and internal resources.

[0003] The operation of room lighting, services, and other functions is arranged on several touch-screen control panels according to their different functions; identity recognition and security are achieved through the application of smart card door magnets; the control system is connected to the computers of departments such as the front desk, floors, management center, engineering department, and security department via switches and servers to form an Ethernet network. Through rapid information exchange and data processing, network system management is achieved, and the room status and situation are reflected to each department in real time, improving work efficiency and reducing operating costs.

[0004] Traditional room control systems are based on a centralized star topology, connecting electronic door locks, thermostats, lighting fixtures, and other devices via a networked room controller (RCU) through a 485 bus, and relying on a 220V relay circuit for high-voltage control. Their core drawbacks are as follows: Low communication reliability: A single 485 bus connects all devices in series, so a single point of failure can paralyze all devices in the room. The communication protocol relies on master-slave polling, and cross-device linkage requires relaying through the RCU, resulting in high latency. Inefficient control: Lighting and air conditioning only support on / off control, unable to achieve precise operations such as dimming and stepless temperature adjustment. Weak emergency response capabilities: Security devices such as emergency call buttons and door sensors rely on bus communication; critical functions fail when the network is interrupted. Uncontrolled 220V circuits directly power sockets, lacking abnormal current protection mechanisms. Poor interference resistance: High-voltage (220V circuit) and low-voltage (485 bus) circuits are not effectively isolated, leading to increased communication error rates due to electromagnetic interference.

[0005] To address the aforementioned issues, we have made a series of improvements. Utility Model Content

[0006] The purpose of this invention is to provide an intelligent room control system to overcome the aforementioned shortcomings and deficiencies of the existing technology.

[0007] A smart room control system includes: a networked room controller, a junction box, a distribution box, a bus isolator, an isolation transmitter, an optocoupler, an electronic door lock, a centralized controller, an identification card reader, a fan temperature controller, a networked safe, an RJ45 broadband network interface, a do-not-disturb three-in-one doorbell, a human infrared sensor, a wall switch, an emergency call button, a doorbell, a lighting system, and an air conditioning system. The networked room controller is connected to the isolation transmitter via the optocoupler, and the distribution box is connected to 220VAC. The distribution box is connected to the isolation transmitter via an uncontrolled 220V circuit. The transmitter is connected to uncontrolled electrical appliances and sockets. The distribution box is connected to the junction box, which is connected to the Ethernet and networked room controller. The junction box is connected to the bus isolator via a 485 bus. The bus isolator is connected to electronic door locks, centralized controllers, identification cards, fan thermostats, networked safes, RJ45 broadband network interfaces, do-not-disturb three-in-one doorbells, human infrared sensors, wall switches, emergency call buttons, and doorbells. The junction box is connected to the lighting system and air conditioning system via a controlled 220V relay circuit.

[0008] Furthermore, the bus isolator is a dual-channel bus isolator, consisting of one RS-485 channel and one CAN channel.

[0009] The beneficial effects of this utility model are:

[0010] Compared with traditional technologies, this invention adds a bus isolator, which splits a single bus into independent communication channels through differential signal amplitude detection and dynamic impedance matching; adds an optocoupler to block strong electrical interference; and adds an isolation transmitter to achieve more precise control and also serve as short-circuit protection. Attached image description:

[0011] Figure 1 This is a schematic diagram of the structure of this utility model.

[0012] Figure label:

[0013] Networked room controller 100, junction box 200, distribution box 300, bus isolator 400, isolation transmitter 500, optocoupler 600, electronic door lock 700, centralized controller 800, identification card reader 900, fan temperature controller 1000, networked safe 1100, RJ45 broadband network interface 1200, do-not-disturb 3-in-1 doorbell 1300, human infrared sensor 1400, wall switch 1500, emergency call button 1600, doorbell 1700, lighting system 1800, and air conditioning system 1900.

[0014] 220VAC 1. Uncontrolled 220V circuit 2. Uncontrolled appliances 3. Sockets 4. Ethernet 5. 485 bus 6. Controlled 220V relay circuit 7. Detailed Implementation

[0015] The present invention will be further described below with reference to specific embodiments. It should be understood that the following embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention.

[0016] Example 1

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] like Figure 1 As shown, an intelligent room control system includes: a networked room controller 100, a junction box 200, a distribution box 300, a bus isolator 400, an isolation transmitter 500, an optocoupler 600, an electronic door lock 700, a centralized controller 800, an identification card reader 900, a fan temperature controller 1000, a networked safe 1100, an RJ45 broadband network interface 1200, a do-not-disturb three-in-one doorbell 1300, a human infrared sensor 1400, a wall switch 1500, an emergency call button 1600, a doorbell 1700, a lighting system 1800, and an air conditioning system 1900. The networked room controller 100 is connected to the isolation transmitter 500 via the optocoupler 600, and the distribution box 300 is connected to a 220VAC system. 1. Connection: Distribution box 300 is connected to isolation transmitter 500 via uncontrolled 220V circuit 2. Isolation transmitter 500 is connected to uncontrolled electrical appliances 3 and socket 4. Distribution box 300 is connected to junction box 200. Junction box 200 is connected to Ethernet 5 and networked room controller 100. Junction box 200 is connected to bus isolator 400 via 485 bus 6. Bus isolator 400 is connected to electronic door lock 700, centralized controller 800, identification card 900, fan temperature controller 1000, networked safe 1100, RJ45 broadband network interface 1200, do-not-disturb three-in-one doorbell 1300, human infrared sensor 1400, wall switch 1500, emergency call button 1600 and doorbell 1700. Junction box 200 is connected to lighting system 1800 and air conditioning system 1900 via controlled 220V relay circuit 7.

[0019] The bus isolator 400 is a dual-channel bus isolator, with one RS-485 and one CAN channel.

[0020] The core improvement of this invention is to construct a highly reliable, finely managed, and adaptive room control system. Through a carefully designed system architecture, especially the introduction of dual-channel bus isolation technology, a significant improvement in system stability and fault tolerance is achieved.

[0021] In this invention, the bus isolator 400 adopts a dual-channel design architecture, specifically configured as one RS-485 communication bus and one CAN bus. This configuration can simultaneously support two mainstream industrial communication protocols, providing the system with higher communication compatibility and flexibility. In this embodiment, we only use the RS-485 communication port to connect to the existing 485 bus 6 to meet the actual requirements. The reason for using a dual-channel design architecture is to allow for more flexible selection based on different situations.

[0022] In this embodiment, the dual-channel bus isolator 400 we use employs differential signal detection technology, which can monitor the differential voltage parameters (i.e., the voltage difference between lines A and B) on the bus in real time. This isolator has a built-in high-precision detection circuit. When the system detects an abnormal voltage condition on a certain section of the bus (e.g., the voltage difference disappears due to a short circuit, voltage fluctuations exceed a preset threshold range, signal distortion, etc.), the isolator will immediately trigger an electrical isolation action, physically isolating the faulty section from the normal operating section to ensure the normal operation of other parts of the system.

[0023] Compared to the single-bus architecture commonly used in traditional technologies, this invention offers significant advantages. In a traditional single-bus architecture, a short-circuit fault in one device can easily paralyze the entire building's communication system, causing service interruptions and a severe decline in user experience. However, this invention's dual-channel isolator scientifically and rationally divides the bus network into multiple independently operating segments, achieving precise fault isolation and location. When a communication failure occurs in a single room, the isolator automatically isolates the room's communication module from the backbone network, affecting only the affected room itself. The communication functions and control systems of other rooms remain unaffected and continue to operate normally.

[0024] The integrated optocoupler 600 of this invention employs photoelectric conversion technology. Through photoelectric signal conversion mechanism and electrical isolation power supply design, it effectively eliminates the ground loop interference problem commonly found in complex environments. Simultaneously, this component also possesses excellent electrical protection functions, effectively preventing external high-voltage signals from entering the mainboard circuitry of the networked room controller 100, thereby protecting the core control equipment from electrical shock damage and improving the safety and stability of the entire system.

[0025] The isolation transmitter 500 used in this invention primarily functions to accurately convert current signals in high-voltage circuits into standardized analog signals while simultaneously achieving electrical isolation. Through current sampling technology and signal isolation processing, combined with a signal standardization process, this transmitter achieves high-precision, low-distortion signal transmission. This design significantly simplifies the system integration process, eliminating the need for a complex decoding module in the networked room controller 100, effectively reducing the overall system's hardware and software complexity, and improving system reliability and maintenance efficiency.

[0026] In summary, this utility model, through the collaborative work of dual-channel bus isolation technology and supporting components, constructs a modern room control system with high reliability, refined management capabilities, and adaptive characteristics, providing a solid technical guarantee for customer experience.

[0027] The specific embodiments of this utility model have been described above, but this utility model is not limited thereto. Various changes can be made to this utility model as long as they do not depart from its spirit.

Claims

1. An intelligent room control system, characterized in that The application relates to a networking room controller (100), a junction box (200), a distribution box (300), a bus isolator (400), an isolated transmitter (500), an optocoupler (600), an electronic door lock (700), a centralized controller (800), an identification card check (900), a fan temperature controller (1000), a networking safe (1100), an RJ45 broadband network interface (1200), a three-in-one doorbell (1300), a human body infrared sensor (1400), a wall switch (1500), an emergency call button (1600), a doorbell (1700), a lamp system (1800) and an air conditioning system (1900), wherein the networking room controller (100) is connected with the isolated transmitter (500) through the optocoupler (600), the distribution box (300) is connected with 220VAC (1), the distribution box (300) is connected with the isolated transmitter (500) through an uncontrolled 220V loop (2), the isolated transmitter (500) is connected with an uncontrolled electric appliance (3) and a socket (4), the distribution box (300) is connected with the junction box (200), the junction box (200) is connected with Ethernet (5) and the networking room controller (100), the junction box (200) is connected with the bus isolator (400) through a 485 bus (6), the bus isolator (400) is connected with the electronic door lock (700), the centralized controller (800), the identification card check (900), the fan temperature controller (1000), the networking safe (1100), the RJ45 broadband network interface (1200), the three-in-one doorbell (1300), the human body infrared sensor (1400), the wall switch (1500), the emergency call button (1600) and the doorbell (1700), and the junction box (200) is connected with the lamp system (1800) and the air conditioning system (1900) through a controlled 220V relay loop (7). The bus isolator (400) is a double-channel bus isolator, and the bus isolator (400) is an RS-485 and a CAN.

2. The intelligent room control system according to claim 1, wherein, ​

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