RCU host device for hotel room control system and light control method

Abstract

The invention discloses RCU host equipment for a hotel room control system and a control method, and relates to the field of hotel management control. The problems that when RCU host equipment of an existing hotel room control system breaks down, switch-on and switch-off of light and other electrical equipment cannot be controlled through a strong current switch, and normal use of a room is affected are solved. According to the RCU host equipment, a strong current switch detection circuit detects a strong current switch signal and transmits a detected result to an MCU single-chip microcomputer, and the MCU single-chip microcomputer executes light driving according to the strong current switch signal; the plug-in card electricity taking detection circuit detects a plug-in card signal and transmits a detected result to the MCU single-chip microcomputer, and the MCU single-chip microcomputer executes a power connection function according to the plug-in card signal. The socket drive circuit controls the socket to be powered on or powered off according to signals fed back by the MCU single-chip microcomputer. The light driving detection circuit drives and controls a light load, detects a light strong current switch, and automatically switches to the strong current switch to directly connect and control the light load in an abnormal state. The method is applied to intelligent control.

Description

Technical Field

[0001] The invention relates to the field of hotel management control, and in particular to an RCU host device used in a hotel room control system. Background Art

[0002] With the development of the hotel industry, intelligent hotel room control systems have become an essential facility for modern hotels. Traditional hotel room control systems usually use weak-current intelligent switches, which have a high failure rate. When the host device of the control system fails, it will be impossible to control the lights, curtains and other electrical equipment in the room through the switch, affecting the normal use of the guests.

[0003] In the prior art, the host device of the hotel room control system is generally composed of a microcontroller, a detection circuit, a drive circuit, etc., which is used to detect various switch signals and control corresponding electrical equipment. However, these host devices cannot switch to the backup control mode when a failure occurs, resulting in the inability to control the on and off of devices such as lights through a strong power switch. Therefore, a high-availability host device is needed that can automatically switch to the backup control mode when a failure occurs to ensure the basic control of devices such as lights by a strong power switch.

[0004] Chinese patent CN213814349U discloses a multi-circuit controlled RCU host for smart hotel rooms, which can realize separate control of strong and weak electricity, and control a variety of electrical appliances and equipment, and at the same time feedback the data of smart devices and room status data, and then automatically adjust, realizing circuit control that automatically adjusts according to the status in the hotel room. However, this patent still has the problem that it cannot control the light on and off through the strong current switch when the RCU host device fails.

[0005] Chinese patent CN103901854A discloses a dual-system hotel room control system, including a main control system and a backup control system. In the automatic detection operation mode, the backup system detects the operation status of the main system in real time. When the main system fails, the control system conversion module switches to the backup system. However, this patent still has the problem that it cannot control the light on and off through a strong power switch when both the main system and the backup system fail at the same time.

[0006] The prior art has the following disadvantages:

[0007] 1. When the host device of the hotel room control system fails, the switch of electrical equipment such as lights cannot be controlled through the high-voltage switch, affecting the normal use of the room.

[0008] 2. The existing host equipment cannot automatically switch to the backup control mode when a failure occurs, resulting in the inability to perform basic control of lighting and other equipment through high-voltage switches.

[0009] 3. The use of weak-current intelligent switches has a high failure rate, which can easily lead to control system failure.

[0010] 4. The dual-system coexistence solution in the prior art still has the problem that the light cannot be turned on and off by the high-voltage switch when both the main system and the backup system fail at the same time. Summary of the invention

[0011] The present invention aims at the problem in the prior art that when an RCU host device of a hotel room control system fails, the switch of electrical equipment such as lights cannot be controlled by a strong current switch, which affects the normal use of the room. An RCU host device for a hotel room control system is proposed, and the RCU host device includes:

[0012] MCU single chip computer, high power switch detection circuit, card insertion power detection circuit, AC-DC conversion circuit, socket drive circuit and light drive detection circuit;

[0013] The MCU is used to coordinate and process the interface functions of each circuit;

[0014] The high-voltage switch detection circuit is used to detect the high-voltage switch signal, and transmit the detected result to the MCU single-chip microcomputer, and the MCU single-chip microcomputer executes the light driving according to the high-voltage switch signal;

[0015] The card insertion power detection circuit is used to detect the card insertion signal and transmit the detected result to the MCU microcontroller, and the MCU microcontroller executes the power supply connection function according to the card insertion signal;

[0016] The AC-DC conversion circuit is used to convert the AC 220V / 50Hz power supply into a DC circuit to supply power to the MCU and various interface circuits;

[0017] The socket drive circuit is used to control the socket to power on or off according to the signal fed back by the MCU microcontroller;

[0018] The light driving detection circuit is used to drive and control the light load, detect the light high-voltage switch, and automatically switch to the high-voltage switch to directly control the light load in an abnormal state.

[0019] Furthermore, a preferred embodiment is proposed, wherein the light driving detection circuit comprises a first weak-current relay K12, a second weak-current relay K20 and a strong-current relay K13; the first weak-current relay K12 and the second weak-current relay K20 control the strong-current by the weak-current; the strong-current relay K13 controls the strong-current by the strong-current; under normal working conditions, the MCU single-chip microcomputer closes the second weak-current relay K20 through the relay control pin MCU_JDQ12, thereby disconnecting the strong-current switch KEY_IN1 from the control end of the strong-current relay K13; the on-off of the second weak-current relay K12 is controlled by the MCU single-chip microcomputer through the relay control pin MCU_JDQ11, and the strong-current switch KEY_IN1 is detected by the strong-current detection circuit; when KEY_IN1 is pressed, the MCU single-chip microcomputer closes the second weak-current relay K20 ... The microcontroller detects and controls the first weak-current relay K12 to be energized, thereby energizing the strong-current relay K13 and turning on the light; when the strong-current switch KEY_IN1 is lifted, the MCU detects and controls the first weak-current relay K12 to be disconnected, thereby disconnecting the strong-current relay K13 and turning off the light; when the RCU host device is abnormal, the relay control pin MCU_JDQ12 outputs a low level, triggering the second weak-current relay K20 to be disconnected, and the second weak-current relay K20 contacts 3 and 4 are automatically connected, so that the strong-current switch KEY_IN1 is directly connected to the control end of the strong-current relay K13. At this time, when the strong-current switch KEY_IN1 is pressed, the strong-current relay K13 is energized and the light is on; when the strong-current switch KEY_IN1 is lifted, the strong-current relay K13 is disconnected and the light is off.

[0020] Furthermore, a preferred embodiment is proposed, wherein the RCU host device further comprises: a 485 circuit, wherein the 485 circuit is used to connect to a third-party 485 interface device, wherein the third-party 485 interface device comprises: a third-party 485 curtain motor.

[0021] Furthermore, a preferred embodiment is proposed, wherein the RCU host further comprises: an SHC circuit, wherein the SHC circuit is an internal bus interface of a hotel room control system, and is used to connect an internal SHC bus device, wherein the internal SHC bus device comprises a thermostat, and the thermostat transmits control data to an MCU microcontroller, and the MCU microcontroller receives the data for processing, and then controls a fan coil drive circuit to control the fan coil.

[0022] Furthermore, a preferred embodiment is proposed, wherein the RCU host device also includes: a door display drive and a doorbell button detection circuit, wherein the door display drive and the doorbell button detection circuit are used to connect to the door display device to display relevant status; and are also used to detect the doorbell button, control the doorbell drive circuit through the MCU microcontroller, and trigger the doorbell.

[0023] Furthermore, a preferred method is proposed, in which the RCU host device is abnormal, including: an abnormality occurs in the power supply part of the RCU host device, at this time, the driving part has no power and cannot work normally; the first weak-current relay K12 and the second weak-current relay K20 are disconnected, at this time the second weak-current relay K20 contact 4 and contact 3 are connected, and the strong-current switch KEY1_IN pin is directly connected to the strong-current relay K13 control pin through the second weak-current relay K20 contact 4 and contact 3; the on-off of the strong-current relay K13 is controlled by the strong-current switch KEY1_IN, when the strong-current switch KEY1_IN is turned on, the strong-current relay K13 is turned on, and the light L5 is on; after the strong-current switch KEY1_IN is disconnected, the strong-current relay K13 is disconnected, and the light L5 is off.

[0024] Furthermore, a preferred method is proposed, in which the RCU host device is abnormal, including: the MCU microcontroller is abnormal. At this time, the MCU microcontroller output pin Q12 and pin Q16 are disconnected, causing the first weak-current relay K12 and the second weak-current relay K20 to be disconnected, and the second weak-current relay K20 contact 4 and contact 3 are connected. At this time, the strong-current switch KEY1_IN pin is directly connected to the strong-current relay K13 control pin through the second weak-current relay K20 contact 4 and contact 3. The on and off of the strong-current relay K13 is controlled by the strong-current switch KEY1_IN. When the strong-current switch KEY1_IN is turned on, the strong-current relay K13 is turned on, and the light L5 is on; after the strong-current switch KEY1_IN is disconnected, the strong-current relay K13 is disconnected, and the light L5 is off.

[0025] Furthermore, a preferred method is proposed, in which the RCU host device is abnormal, including: the collector and emitter of the MCU single-chip output pin Q12 and pin Q16 are disconnected, at this time, the first weak-current relay K12 and the second weak-current relay K20 are disconnected, and the second weak-current relay K20 contacts 4 and 3 are connected. At this time, the strong-current switch KEY1_IN pin is directly connected to the strong-current relay K13 control pin through the second weak-current relay K20 contacts 4 and 3. The on and off of the strong-current relay K13 is controlled by the strong-current switch KEY1_IN. When the strong-current switch KEY1_IN is turned on, the strong-current relay K13 is turned on, and the light L5 is on; after KEY1_IN is disconnected, the strong-current relay K13 is disconnected, and the light L5 is off.

[0026] Furthermore, a preferred method is proposed, in which the RCU host device is abnormal, including: the collector and emitter of the MCU single-chip output pin Q12 and pin Q16 are short-circuited. At this time, the MCU single-chip disconnects the output pin Q28 and the output pin Q29 after detecting the abnormality, so that the power supply of the first weak-current relay K12 and the second weak-current relay K20 coils is cut off, the first weak-current relay K12 and the second weak-current relay K20 are disconnected, and the second weak-current relay K20 contact 4 and contact 3 are connected. At this time, the strong-current switch KEY1_IN pin is directly connected to the strong-current relay K13 control pin through the second weak-current relay K20 contact 4 and contact 3. The on and off of the strong-current relay K13 is controlled by the strong-current switch KEY1_IN. When the strong-current switch KEY1_IN is turned on, the strong-current relay K13 is turned on, and the light L5 is on; after the strong-current switch KEY1_IN is disconnected, the strong-current relay K13 is disconnected, and the light L5 is off.

[0027] Based on the same inventive concept, the present invention also proposes a control method for a hotel room control system, the control method is implemented based on the RCU host device for a hotel room control system described in any one of the above items, and the method includes:

[0028] The high-voltage switch sends out a 220V on-off signal, and the high-voltage switch detection circuit receives the 220V on-off signal and converts it into a control protocol instruction and passes it to the MCU microcontroller. After analysis and processing, the MCU microcontroller passes the new execution protocol instruction to the light drive detection circuit, and the light drive detection circuit turns the light circuit on and off according to the execution protocol instruction.

[0029] The present invention is beneficial in that:

[0030] 1. The present invention proposes an RCU host device for a hotel room control system, which adopts a high-availability integrated circuit and a fault detection and diagnosis automatic switching technology. When the RCU host device fails and cannot work normally, it can automatically switch to a high-voltage switch direct control mode, thereby realizing point-to-point switch control of the lights by the high-voltage switch in the guest room, ensuring that the basic lighting control function is not affected, and solving the problem in the prior art that the lights cannot be turned on and off by the high-voltage switch when the host device fails;

[0031] 2. Use strong current switch instead of weak current intelligent switch, which has stronger stability and almost zero failure rate, effectively solving the problem of high failure rate of weak current intelligent switch in the existing technology;

[0032] 3. Even if the RCU host device fails, it will not affect the control of the light on and off by the strong power switch, ensuring the basic lighting control function in the guest room and improving the reliability and availability of the system;

[0033] 4. No need to adopt a complex solution of dual systems coexisting, simple structure, low cost, and no need to worry about the problem of simultaneous failure of the main system and the backup system;

[0034] 5. Provides a high-availability host device that can automatically switch to the backup control mode when a failure occurs, ensuring the basic control of the high-voltage switch over lighting and other equipment, and improving the system's fault tolerance and reliability.

[0035] The invention is applied to the field of intelligent control. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 A circuit block diagram of an RCU host device for a hotel room control system according to implementation mode 1;

[0037] Figure 2 This is a schematic diagram of a light driving detection circuit according to Embodiment 2;

[0038] In the figure, L is the live wire, N is the neutral wire, L5 is the lighting load, KEY1_IN is the high-power switch input, MCU_JDQ11 and MCU_JDQ12 are relay control pins, MCU_IN1 is the high-power switch detection pin, MCU_ERR1 is the low-power relay coil power control pin, and MCU leads out. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments.

[0040] Implementation method 1, see Figure 1 The present embodiment is described as follows. The RCU host device used in the hotel room control system of the present embodiment comprises:

[0041] MCU single chip computer, high power switch detection circuit, card insertion power detection circuit, AC-DC conversion circuit, socket drive circuit and light drive detection circuit;

[0042] The MCU single-chip computer adopts a 32-bit RISC-V interconnected microcontroller, which is used to coordinate and process the interface functions of each circuit;

[0043] The high-voltage switch detection circuit is used to detect the high-voltage switch signal and transmit the detected result to the MCU single-chip microcomputer, and the MCU single-chip microcomputer performs light on and off control according to the high-voltage switch signal;

[0044] The card insertion power detection circuit is used to detect the card insertion signal and transmit the detected result to the MCU microcontroller, and the MCU microcontroller executes the power on or off function according to the card insertion signal;

[0045] The AC-DC conversion circuit is used to convert the AC 220V / 50Hz power supply into a DC circuit to supply power to the MCU and various interface circuits;

[0046] The socket drive circuit is used to control the socket to power on or off according to the signal fed back by the MCU microcontroller;

[0047] The light driving detection circuit is used to drive and control the light load, detect the light high-voltage switch, and automatically switch to the high-voltage switch to directly control the light load under abnormal conditions.

[0048] The RCU host device for the hotel room control system proposed in this embodiment directly controls the switch of lighting and other equipment by designing a lighting drive detection circuit, thereby solving the problem that guests cannot use electrical appliances such as lighting control in the room when the RCU host device fails. When the RCU host fails, the system can automatically switch to the high-voltage switch direct connection control mode to ensure that the basic lighting control function is not affected. This design greatly improves the reliability of the system and ensures the uninterrupted basic service.

[0049] Compared with the weak-current intelligent switch commonly used in the prior art, this embodiment uses a strong-current switch. This design effectively avoids the failure problem that may occur in the weak-current intelligent switch during long-term use. The strong-current switch has strong stability and extremely low failure rate, which is crucial for reliability in a long-term use environment.

[0050] The RCU host device proposed in this embodiment has a light drive detection circuit added. When the RCU host fails, the circuit can automatically switch to the strong power switch direct control, ensuring that even in an abnormal state, the guest can still directly control the light on and off through the strong power switch. This design ensures that the basic control functions can always be used in any case.

[0051] The design of this implementation enhances the fault tolerance of the system in the event of a failure by providing multiple control paths (RCU host and high-voltage switch). Even if the RCU host fails, users can still control the lights through the high-voltage switch, ensuring that the most basic living needs are not affected. Due to the use of intelligent circuits and hardware redundancy, the availability of the system is greatly improved, and the service will not be completely interrupted in the event of a failure. In addition, the design is simple and does not rely on complex software control, which further enhances the robustness of the system.

[0052] In actual scenarios, for guest rooms that have already been occupied, once the RCU host fails to work, users can still control the lights point-to-point without having to change rooms temporarily. Engineering personnel do not need to go to repair and replace spare parts immediately, but can carry out repairs at an appropriate time later. If there is a shortage of spare parts for the RCU host, such rooms can be sold and used, and only the linkage functions such as scenes cannot be used, which will not affect the normal life of users.

[0053] Implementation Method 2: See Figure 2 This embodiment is described. This embodiment is a further limitation of the RCU host device for a hotel room control system described in the first embodiment. The light driving detection circuit includes a first weak-current relay K12, a second weak-current relay K20 and a strong-current relay K13; the first weak-current relay K12 and the second weak-current relay K20 control the strong-current by weak-current; the strong-current relay K13 controls the strong-current by strong-current; under normal working conditions, the MCU single-chip microcomputer closes the second weak-current relay K20 through the relay control pin MCU_JDQ12, thereby disconnecting the strong-current switch KEY_IN1 from the control end of the strong-current relay K13; the on-off of the second weak-current relay K12 is controlled by the MCU single-chip microcomputer through the relay control pin MCU_JDQ11, and the strong-current switch KEY_IN1 is detected by the strong-current detection circuit; when KE When Y_IN1 is pressed, the MCU detects and controls the first weak-current relay K12 to be energized, thereby energizing the strong-current relay K13 and turning on the light; when the strong-current switch KEY_IN1 is lifted, the MCU detects and controls the first weak-current relay K12 to be disconnected, thereby disconnecting the strong-current relay K13 and turning off the light; when the RCU host device is abnormal, the relay control pin MCU_JDQ12 outputs a low level, triggering the second weak-current relay K20 to be disconnected, and the second weak-current relay K20 contacts 3 and 4 are automatically connected, so that the strong-current switch KEY_IN1 is directly connected to the control end of the strong-current relay K13. At this time, when the strong-current switch KEY_IN1 is pressed, the strong-current relay K13 is energized and the light is on; when the strong-current switch KEY_IN1 is lifted, the strong-current relay K13 is disconnected and the light is off.

[0054] In this embodiment, accurate switching of weak current relays and strong current relays is achieved through precise control of the MCU single chip. The control of the MCU makes the entire device have certain intelligent characteristics, and can automatically adjust the control logic according to the sensor input and the device status. For example, the MCU determines whether to enable the light according to the state of the strong current switch (pressed or lifted), and feeds back the state of the relay in real time. When the system is abnormal, the system can automatically output a low-level signal through the MCU single chip, triggering the second weak current relay K20 to disconnect, so that the strong current switch is directly connected to the control end of the strong current relay K13, ensuring that the system can still work normally when a fault occurs. The first weak current relay K12 and the second weak current relay K20 are used to control the strong current from the weak current. This design improves the safety of the system by isolating the strong current and weak current parts. The weak current part (such as the control module such as the MCU single chip) and the strong current part (such as the light relay and the power supply part) are isolated from each other, preventing the weak current part from being interfered or damaged by the strong current. The strong current relay K13 is controlled by the strong current, ensuring that the strong current part has higher reliability and stability. Even when the MCU or weak-current part fails, the strong-current part can still maintain normal operation, further ensuring the safety and stability of the system.

[0055] When an abnormality occurs in the RCU host device, the system will automatically switch to fault recovery mode. This mode automatically connects the high-voltage switch to the direct connection between the high-voltage relay K13 control terminal and the contact of the second low-voltage relay K20, thereby ensuring that even if there is a problem with the main control system, the light switch can still be controlled by the high-voltage relay. This fault-tolerant design greatly enhances the stability and reliability of the equipment and avoids complete loss of control or shutdown due to failure of the main control system. By controlling the circuit through relays, especially using low-voltage relays to control high voltage, the direct use of high-voltage switches and relays is avoided, thereby reducing power consumption and improving energy efficiency. This control method can effectively reduce the energy consumption of the overall system, extend the service life of the equipment, and improve the operating efficiency of the system.

[0056] Through this relay control method, users can enjoy precise lighting control in a stable environment. Whether pressing or lifting the switch, the MCU can respond quickly to ensure the normal switching of the light. This convenient and reliable operation method improves the user experience, especially in scenarios such as hotels, where the stability and comfort of lighting control is an important requirement.

[0057] Implementation method three. This implementation method further limits the RCU host device for a hotel room control system described in implementation method one. The RCU host device also includes: a 485 circuit, the 485 circuit is used to connect a third-party 485 interface device, and the third-party 485 interface device includes: a third-party 485 curtain motor.

[0058] In this embodiment, the curtain motor is controlled by the curtain drive circuit, and supports strong power and dry contact curtain motors.

[0059] Implementation method 4. This implementation method further limits the RCU host device for a hotel room control system described in implementation method 1. The RCU host also includes: an SHC circuit, which is an internal bus interface of the hotel room control system and is used to connect to an internal SHC bus device. The internal SHC bus device includes a thermostat, which transmits control data to an MCU microcontroller, which receives the data for processing and then controls the fan coil drive circuit to control the fan coil.

[0060] In this embodiment, the fan coil drive circuit is used to control the fan coil to achieve cooling and heating modes, high, medium and low speeds.

[0061] Implementation method five. This implementation method further limits the RCU host device for a hotel room control system described in implementation method one. The RCU host device also includes: a door display driver and a doorbell button detection circuit. The door display driver and the doorbell button detection circuit are used to connect to the door display device to display the relevant status; they are also used to detect the doorbell button, control the doorbell driver circuit through the MCU microcontroller, and trigger the doorbell.

[0062] The RCU host device further includes: a doorbell driving circuit, which is used to drive the doorbell and supply power to the doorbell.

[0063] Implementation method seven. This implementation method is a further limitation on the RCU host device for a hotel room control system described in implementation method two. The abnormality of the RCU host device includes: an abnormality occurs in the power supply part of the RCU host device. At this time, the driving part has no power and cannot work normally; the first weak-current relay K12 and the second weak-current relay K20 are disconnected, at which time the contact 4 and contact 3 of the second weak-current relay K20 are connected, and the high-current switch KEY1_IN pin is directly connected to the control pin of the high-current relay K13 through the contact 4 and contact 3 of the second weak-current relay K20; the on-off of the high-current relay K13 is controlled by the high-current switch KEY1_IN. When the high-current switch KEY1_IN is turned on, the high-current relay K13 is turned on, and the light L5 is on; after the high-current switch KEY1_IN is disconnected, the high-current relay K13 is disconnected, and the light L5 is off.

[0064] In this embodiment, when the MCU microcontroller is abnormal, it will cause the control circuit to be automatically disconnected. Through the series design of the relay, the RCU host can flexibly control the strong current equipment. Lighting control: The strong current relay K13 controls the on and off of the light L5 through the strong current switch KEY1_IN. This design simplifies the traditional control method. The user can control the light through a simple switch operation, and the system can respond quickly when the switch fails. The weak current circuit (such as MCU, relays K12 and K20) and the strong current circuit (such as strong current relay K13 and light L5) are isolated by relays. In this way, even if the strong current part fails or needs maintenance, the weak current part can work normally. Electrical isolation not only improves the safety of the system, but also makes maintenance and troubleshooting more convenient. The control method of the relay allows the system to be expanded as needed. For example, in the hotel room control system, more control devices (such as air conditioners, electric fans, etc.) can be easily added without redesigning the entire system. This modular design facilitates the upgrade and expansion of the system.

[0065] Implementation method eight. This implementation method is a further limitation on the RCU host device for a hotel room control system described in implementation method two. The RCU host device is abnormal, including: the MCU single-chip computer is abnormal. At this time, the MCU single-chip computer output pin Q12 and pin Q16 are disconnected, causing the first weak-current relay K12 and the second weak-current relay K20 to be disconnected, and the second weak-current relay K20 contact 4 and contact 3 are connected. At this time, the strong-current switch KEY1_IN pin is directly connected to the strong-current relay K13 control pin through the second weak-current relay K20 contact 4 and contact 3. The on and off of the strong-current relay K13 is controlled by the strong-current switch KEY1_IN. When the strong-current switch KEY1_IN is turned on, the strong-current relay K13 is turned on, and the light L5 is on; after the strong-current switch KEY1_IN is disconnected, the strong-current relay K13 is disconnected, and the light L5 is off.

[0066] When the MCU (single-chip microcomputer) is abnormal, the connection is disconnected through the Q12 and Q16 pins, which will cause the relays K12 and K20 to be disconnected, but the strong current relay K13 can still be controlled to be on and off through the contacts 4 and 3 of the second weak current relay K20. This design effectively solves the problem of being able to maintain control over strong current equipment (such as lights) when the MCU is abnormal, thereby ensuring the stability and continuous operation of the system. Through the backup mechanism in the circuit, even if the MCU is abnormal, the stable operation of the strong current relay control system can still be guaranteed. When the MCU is abnormal, the device can continue to operate through other means (relays) to avoid paralysis of the entire system due to single point failures. Further, the RCU host device controls the on and off of the light L5 through the strong current relay K13, and the strong current switch KEY1 IN controls the start and stop of the strong current relay. In this way, precise switch control can be achieved, so that the status of lights or other electrical equipment can be flexibly turned on or off as needed. The switch control realized by the relay can accurately control equipment such as lights, whether it is the lights in the hotel rooms or other electrical equipment.

[0067] When the RCU host device fails, the relay control method in the system design can effectively diagnose and restore normal operation. In particular, through the design of the K20 relay contacts, a certain circuit recovery path can be provided in the event of an abnormality to ensure that the basic operation of the system is not affected. Through the design of the relay, the system can quickly locate the problem and take corresponding measures to recover when a fault occurs, reducing the impact caused by the fault. Even if the MCU fails, the system can still recover to a certain working state through the switching of the relay, enhancing the system's recovery ability.

[0068] Since the RCU host device separates strong current and weak current through relays, the risk of directly controlling the strong current switch through the MCU is avoided, thereby reducing the probability of equipment damage due to excessive voltage or excessive current.

[0069] Implementation method nine. This implementation method is a further limitation on the RCU host device for a hotel room control system described in implementation method two. The RCU host device is abnormal, including: the collector and emitter of the MCU single-chip output pin Q12 and pin Q16 are disconnected. At this time, the MCU single-chip disconnects the output pin Q28 and the output pin Q29 after detecting the abnormality, so that the first weak-current relay K12 and the second weak-current relay K20 are disconnected, and the contacts 4 and 3 of the second weak-current relay K20 are connected. At this time, the strong-current switch KEY1_IN pin is directly connected to the control pin of the strong-current relay K13 through the contacts 4 and 3 of the second weak-current relay K20. The on-off of the strong-current relay K13 is controlled by the strong-current switch KEY1_IN. When the strong-current switch KEY1_IN is turned on, the strong-current relay K13 is turned on, and the light L5 is on; after the strong-current switch KEY1_IN is disconnected, the strong-current relay K13 is disconnected, and the light L5 is off.

[0070] When the MCU pins Q12 and Q16 are disconnected, the first weak-current relay K12 and the second weak-current relay K20 are disconnected, and then the strong-current relay K13 is controlled through the connection of the relay contact K20, and finally the switch of the light L5 is controlled. This structure ensures the simplicity and clear logic of the control process through the simple switching of relays. The design of the two-stage relays (weak-current relays and strong-current relays) in the system ensures that even if one relay fails, the other relay can continue to work, thereby improving the reliability and fault tolerance of the system.

[0071] In the RCU host device, when the status of the output pins Q12 and Q16 of the MCU microcontroller changes, the system can automatically identify the hardware anomaly and trigger the corresponding control logic. This anomaly detection mechanism can promptly detect potential problems in the system and trigger appropriate control responses, ensuring the intelligence and adaptability of the device. When the MCU pin is disconnected, the high-voltage switch (such as KEY1_IN) controls the high-voltage relay K13 through the relay contacts. This design ensures that the switch of the high-voltage part is controlled by low voltage, avoiding the danger of directly operating high-voltage equipment and increasing the safety of the system.

[0072] Relay switching reduces power consumption: Since the relay uses a low current control method, the overall control system has low power consumption, which can reduce the energy consumption of the equipment and help extend the service life of the equipment.

[0073] Implementation method ten. This implementation method is a further limitation on the RCU host device for a hotel room control system described in implementation method two. The RCU host device is abnormal, including: the collector and emitter of the MCU single-chip output pin Q12 and pin Q16 are short-circuited. At this time, the MCU single-chip detects the abnormality and disconnects the coil power supply of the first weak-current relay K12 and the second weak-current relay K20. The first weak-current relay K12 and the second weak-current relay K20 are disconnected, and the second weak-current relay K20 contact 4 and contact 3 are connected. At this time, the strong-current switch KEY1_IN pin is directly connected to the control pin of the strong-current relay K13 through the second weak-current relay K20 contact 4 and contact 3. The on and off of the strong-current relay K13 is controlled by the strong-current switch KEY1_IN. When the strong-current switch KEY1_IN is turned on, the strong-current relay K13 is turned on, and the light L5 is on; after the strong-current switch KEY1_IN is disconnected, the strong-current relay K13 is disconnected, and the light L5 is off.

[0074] When the MCU output pins (Q12, Q16) are short-circuited, the system's abnormal detection is triggered and the coil power supply of the first weak-current relay K12 and the second weak-current relay K20 is disconnected. This design disconnects the relay control in time through the detected abnormal signal to prevent the system from losing control or causing more serious failures due to hardware failures. When an abnormality occurs, the system enters a protection state to ensure that it will not have a negative impact on other devices. Therefore, this design improves the stability and safety of the system. The control of the strong-current relay K13 depends entirely on the switching of the first weak-current relay K12 and the second weak-current relay K20 by the MCU. This design makes the control logic of the light more flexible and can adjust the output according to different input signals (such as the state of KEY1_IN). When the strong-current switch KEY1_IN is turned on, the light L5 is on; when the strong-current switch KEY1_IN is turned off, the light L5 is off. This direct switch control method can accurately control the switch of the light, which is suitable for various environments and needs in the hotel room control system.

[0075] Embodiment 10: A control method for a hotel room control system described in this embodiment, the control method is implemented based on an RCU host device for a hotel room control system described in any one of embodiments 1 to 9, and the method includes:

[0076] The high-voltage switch sends out a 220V on-off signal, and the high-voltage switch detection circuit receives the 220V on-off signal and converts it into a control protocol instruction and passes it to the MCU microcontroller. After analysis and processing, the MCU microcontroller passes the new execution protocol instruction to the light drive detection circuit, and the light drive detection circuit turns the light circuit on and off according to the execution protocol instruction.

[0077] In this embodiment, the 220V on-off signal of the high-voltage switch is used as input, which can be directly compatible with the power system and avoid dependence on additional control modules. The 220V signal emitted by the high-voltage switch is converted into a control protocol instruction through the high-voltage switch detection circuit. This conversion method not only simplifies the hardware design, but also reduces the demand for external power supply. The converted signal is processed and analyzed by the MCU single-chip microcomputer (microcontroller single-chip microcomputer). The MCU generates a new execution protocol instruction through logical judgment. The instruction is controlled by the light drive detection circuit to achieve precise control of the light circuit. The application of the MCU single-chip microcomputer provides the system with intelligent control functions. Through the analysis and processing of the input signal, the MCU can generate different execution instructions according to different needs, and flexibly respond to the user's operation on room lighting, etc. A variety of control modes can be set, such as automatic adjustment, timer switch, scene setting, etc., to meet various needs in the hotel environment.

[0078] The light drive detection circuit will perform the on-off operation of the light circuit according to the instructions of the MCU, which means that the light control of each room is highly accurate. Without manual intervention, the system can accurately control the switch of each light to ensure energy saving and comfort. In the process of strong power switch signal conversion, a safety detection circuit is used to effectively avoid interference or damage to the power signal, enhancing the stability and safety of the system.

[0079] As the number of hotel rooms increases or control requirements change, the system can achieve a wider range of control by adding more MCUs and light drive detection circuits without having to replace the entire system architecture.

[0080] Although the preferred embodiments of the present disclosure have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present disclosure.

[0081] Obviously, those skilled in the art can make various changes and modifications to the present disclosure without departing from the spirit and scope of the present disclosure. Thus, if these modifications and variations of the present disclosure fall within the scope of the claims of the present disclosure and their equivalents, the present disclosure is also intended to include these modifications and variations.

[0082] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure rather than to limit its protection scope. Although the present disclosure has been described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that after reading the present disclosure, those skilled in the art can still make various changes, modifications or equivalent substitutions to the specific implementation methods of the invention, but these changes, modifications or equivalent substitutions are all within the protection scope of the disclosed claims to be approved.

Claims

1. An RCU host device for a hotel room control system, characterized in that: The RCU host device includes: MCU single chip computer, high power switch detection circuit, card insertion power detection circuit, AC-DC conversion circuit, socket drive circuit and light drive detection circuit; The MCU is used to coordinate and process the interface functions of each circuit; The high-voltage switch detection circuit is used to detect the high-voltage switch signal and transmit the detected result to the MCU single-chip microcomputer, and the MCU single-chip microcomputer performs light on and off control according to the high-voltage switch signal; The card insertion power detection circuit is used to detect the card insertion signal and transmit the detected result to the MCU microcontroller, and the MCU microcontroller executes the power on or off function according to the card insertion signal; The AC-DC conversion circuit is used to convert the AC 220V / 50Hz power supply into a DC circuit to supply power to the MCU and various interface circuits; The socket drive circuit is used to control the socket to power on or off according to the signal fed back by the MCU microcontroller; The light driving detection circuit is used to drive and control the light load, detect the light high-voltage switch, and automatically switch to the high-voltage switch to directly control the light load in an abnormal state.

2. The RCU host device for a hotel room control system according to claim 1, characterized in that: The light driving detection circuit includes a first weak-current relay K12, a second weak-current relay K20 and a strong-current relay K13; the first weak-current relay K12 and the second weak-current relay K20 control the strong-current by the weak-current; the strong-current relay K13 controls the strong-current by the strong-current; under normal working conditions, the MCU single-chip microcomputer closes the second weak-current relay K20 through the relay control pin MCU_JDQ12, thereby disconnecting the strong-current switch KEY_IN1 from the control end of the strong-current relay K13; the on-off of the second weak-current relay K12 is controlled by the MCU single-chip microcomputer through the relay control pin MCU_JDQ11, and the strong-current switch KEY_IN1 is detected by the strong-current detection circuit; when KEY_IN1 is pressed, the MCU single-chip microcomputer detects and controls The first weak-current relay K12 is controlled to be attracted, thereby the strong-current relay K13 is attracted and the light is on; when the strong-current switch KEY_IN1 is lifted, the MCU detects and controls the first weak-current relay K12 to be disconnected, thereby the strong-current relay K13 is disconnected and the light is off; when the RCU host device is abnormal, the relay control pin MCU_JDQ12 outputs a low level, triggering the second weak-current relay K20 to be disconnected, and the second weak-current relay K20 contacts 3 and 4 are automatically connected, so that the strong-current switch KEY_IN1 is directly connected to the control end of the strong-current relay K13. At this time, when the strong-current switch KEY_IN1 is pressed, the strong-current relay K13 is attracted and the light is on; when the strong-current switch KEY_IN1 is lifted, the strong-current relay K13 is disconnected and the light is off.

3. The RCU host device for a hotel room control system according to claim 1, characterized in that: The RCU host device also includes: a 485 circuit, and the 485 circuit is used to connect a third-party 485 interface device, and the third-party 485 interface device includes: a third-party 485 curtain motor.

4. The RCU host device for a hotel room control system according to claim 1, characterized in that: The RCU host also includes: an SHC circuit, which is an internal bus interface of the hotel room control system and is used to connect to an internal SHC bus device. The internal SHC bus device includes a thermostat, which transmits control data to the MCU microcontroller, which receives the data for processing and then controls the fan coil drive circuit to control the fan coil.

5. The RCU host device for a hotel room control system according to claim 1, characterized in that: The RCU host device also includes: a door display drive and a doorbell button detection circuit, which is used to connect to the door display device and display the relevant status; it is also used to detect the doorbell button, control the doorbell drive circuit through the MCU microcontroller, and trigger the doorbell.

6. The RCU host device for a hotel room control system according to claim 2, characterized in that: The RCU host device is abnormal, including: an abnormality occurs in the power supply part of the RCU host device, at this time, the RCU host device has no power and cannot work normally; the first weak-current relay K12 and the second weak-current relay K20 are disconnected, at this time, the second weak-current relay K20 contact 4 and contact 3 are connected, and the strong-current switch KEY1_IN pin is directly connected to the strong-current relay K13 control pin through the second weak-current relay K20 contact 4 and contact 3; the strong-current relay K13 is turned on and off by the strong-current switch KEY1_IN. When the strong-current switch KEY1_IN is turned on, the strong-current relay K13 is turned on and the light L5 is on; after the strong-current switch KEY1_IN is disconnected, the strong-current relay K13 is disconnected and the light L5 is off.

7. The RCU host device for a hotel room control system according to claim 2, characterized in that: The RCU host device is abnormal, including: the MCU single-chip computer is abnormal. At this time, the MCU single-chip computer output pin Q12 and pin Q16 are disconnected, causing the first weak-current relay K12 and the second weak-current relay K20 to be disconnected, and the second weak-current relay K20 contact 4 and contact 3 are connected. At this time, the strong-current switch KEY1_IN pin is directly connected to the strong-current relay K13 control pin through the second weak-current relay K20 contact 4 and contact 3. The on and off of the strong-current relay K13 is controlled by the strong-current switch KEY1_IN. When the strong-current switch KEY1_IN is turned on, the strong-current relay K13 is turned on, and the light L5 is on; after the strong-current switch KEY1_IN is disconnected, the strong-current relay K13 is disconnected, and the light L5 is off.

8. The RCU host device for a hotel room control system according to claim 2, characterized in that: The RCU host device is abnormal, including: the collector and emitter of the MCU single-chip output pin Q12 and pin Q16 are disconnected, at this time, the first weak-current relay K12 and the second weak-current relay K20 are disconnected, and the contacts 4 and 3 of the second weak-current relay K20 are connected. At this time, the strong-current switch KEY1_IN pin is directly connected to the control pin of the strong-current relay K13 through the contacts 4 and 3 of the second weak-current relay K20. The on and off of the strong-current relay K13 is controlled by the strong-current switch KEY1_IN. When the strong-current switch KEY1_IN is turned on, the strong-current relay K13 is turned on, and the light L5 is on; after the strong-current switch KEY1_IN is disconnected, the strong-current relay K13 is disconnected, and the light L5 is off.

9. The RCU host device for a hotel room control system according to claim 2, characterized in that: The RCU host device is abnormal, including: the collector and emitter of the MCU single-chip output pin Q12 and pin Q16 are short-circuited. At this time, the MCU single-chip disconnects the output pin Q28 and the output pin Q29 after detecting the abnormality, so that the coil power of the first weak-current relay K12 and the second weak-current relay K20 is cut off, the first weak-current relay K12 and the second weak-current relay K20 are disconnected, and the second weak-current relay K20 contact 4 and contact 3 are connected. At this time, the strong-current switch KEY1_IN pin is directly connected to the strong-current relay K13 control pin through the second weak-current relay K20 contact 4 and contact 3. The on and off of the strong-current relay K13 is controlled by the strong-current switch KEY1_IN. When the strong-current switch KEY1_IN is turned on, the strong-current relay K13 is turned on, and the light L5 is on; after the strong-current switch KEY1_IN is disconnected, the strong-current relay K13 is disconnected, and the light L5 is off.

10. A lighting control method for a hotel room control system, characterized in that: The control method is implemented based on an RCU host device for a hotel room control system according to any one of claims 1 to 9, and the method comprises: The high-voltage switch sends out a 220V on-off signal, and the high-voltage switch detection circuit receives the 220V on-off signal and converts it into a control protocol instruction and passes it to the MCU microcontroller. After analysis and processing, the MCU microcontroller passes the new execution protocol instruction to the light drive detection circuit, and the light drive detection circuit turns the light circuit on and off according to the execution protocol instruction.

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