Partition control method of aircraft passenger cabin scene lighting system

Abstract

The invention discloses a partition control method for an airplane passenger cabin scene lighting system. The partition control method comprises the steps that a main control panel outputs a signal to a first lamp and sends a first address of the first lamp to an RS485 bus, and the first lamp responds to an RS485 bus command and performs addressing according to an address in RS485 information; the first lamp sends a signal to the next lamp, the address of the first lamp is processed to serve as a new address, a new address loading command is sent to the RS485 bus, the next lamp is addressed according to the address loading mode of the first lamp, and so on; the main control panel sends area information data bound with the address to the RS485 bus, and all the lamps only respond to area command information with the same address as the lamp; and the main control panel sends illumination mode data bound with the regional information to realize the regional control of the lamp. The system has the advantages that on the basis that complex circuits are not added, the subarea control function of the lamp is achieved, and the requirement for differentiated illumination of different areas by airplane passenger cabin illumination is met.

Description

Technical Field

[0001] The invention relates to the technical field of lighting system zoning control, and in particular to a zoning control method for an aircraft cabin scene lighting system. Background Art

[0002] With the continuous development of aircraft cabin lighting, lighting needs have become more diversified. An integrated and diversified lighting system is becoming more and more popular. Integrated control is easier for crew members to operate. The basic lighting and atmosphere lighting in different areas are independent of each other, which can meet the higher-level needs of passengers. At present, civil aviation aircraft cabin lighting includes a variety of lamps, such as exit area lighting, entrance area lighting, front cabin lighting, rear cabin lighting, etc. The lighting fixtures not only meet the basic needs of brightness lighting, but also have atmosphere lighting in multiple color modes. These lamps are usually controlled uniformly using discrete signals, and this control method cannot achieve the separate control function of different areas. Summary of the invention

[0003] The object of the present invention is to provide a partition control method for an aircraft cabin scene lighting system, thereby solving the above-mentioned problems existing in the prior art.

[0004] In order to achieve the above object, the technical solution adopted by the present invention is as follows:

[0005] A partition control method for an aircraft cabin scene lighting system comprises the following steps:

[0006] S1. Automatic addressing:

[0007] The output end of the main control panel outputs a signal to the first lamp, and sends the first address of the first lamp to the RS485 bus. The first lamp responds to the RS485 bus command and is addressed according to the address in the RS485 information. The output end of the first lamp sends a signal to the input end of the next lamp, processes the address of the first lamp as a new address, and sends a load new address command to the RS485 bus. The next lamp is addressed according to the address loading method of the first lamp, and so on.

[0008] S2. Regional allocation:

[0009] The main control panel then sends the regional information data bound to the address to the RS485 bus, and all lamps only respond to the regional command information with the same address as the lamp, thus realizing the regional information allocation of the lamps;

[0010] S3, lighting partition control:

[0011] The main control panel sends the lighting mode data bound to the zone information to achieve zone control of the lamps.

[0012] Preferably, before step S1, the method also includes connecting the main control panel and all lamps in the scene lighting system through an RS485 bus, with the main control panel serving as the master device in the RS485 bus network and all lamps serving as slave devices; the main control panel is connected to the first lamp through a TOKEN line, and the TOKEN_I N input pin of the first lamp is used to receive the data signal sent by the main control panel, and then outputs the TOKEN_OUT signal to the next lamp after processing, and so on.

[0013] Preferably, step S1 specifically includes the following contents:

[0014] S11, when the main control panel initiates the automatic addressing command, its TOKEN_OUT output terminal outputs a low pulse signal of the first preset time to the first lamp, and during the low pulse period of the TOKEN signal, sends the first address of the first lamp to the RS485 bus;

[0015] S12, after the TOKEN_I N signal of the first lamp is pulled low, it responds to the RS485 bus command. First, the lamp is addressed according to the address in the RS485 information. After the addressing is successful, the address of the lamp and its related information are returned to the main control panel, and the main control panel displays the information that the lamp is successfully addressed;

[0016] S13, the TOKEN_OUT output terminal of the first lamp sends a low pulse signal of the second preset time to the TOKEN_I N input terminal of the second lamp, and at the same time, the address of the first lamp is increased by 1 as the new address, and a load new address command is sent to the RS485 bus, and the second lamp is addressed according to the address loading method of the first lamp, and the address and related information are returned; the remaining lamps complete the addressing in the same way, and when the main control panel times out when receiving the return information of the lamp, it is determined that the compilation is completed.

[0017] Preferably, step S2 further includes,

[0018] In order to verify whether the format of the regional information is loaded successfully, after the regional information of all lamps is allocated, it is queried by sending the lamp address and regional information command. After all lamps receive the corresponding address information, they return the regional information corresponding to the address and check it with the preset address and regional relationship table to ensure that the lamp area allocation is successful. If there is any abnormality, it will be displayed on the main control panel.

[0019] The beneficial effects of the present invention are as follows: the method of the present invention sends addressing and zoning commands through the main control panel, and cooperates with RS485 communication through the TOKEN line to quickly realize the addressing and zoning functions of all lamps, thereby solving the problem of lighting zoning control. The addressing and zoning method is simple and fast. After the main control panel starts the zoning command, the addressing and zoning of all lamps can be completed within a few seconds. When controlling the lighting mode, the zoning control of lamps in different areas is realized through the different mode command buttons of the main control panel. Such as independent zoning control functions such as the low-brightness mode of business class and the high-brightness mode of economy class. The invention realizes the zoning control function of lamps without adding complex circuits, meeting the requirements of differentiated lighting in different areas of aircraft cabin lighting. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a diagram of the connection relationship between the main control panel and the lamp in an embodiment of the present invention;

[0021] Figure 2 It is a schematic diagram of relevant signals during automatic addressing in an embodiment of the present invention (in the figure, ① is the low-level pulse signal input to the first lamp TOKEN_I N; ② is the address coding command sent by the main control panel to the first lamp; ③ is the message of successful addressing replied by the first lamp; ④ is the addressing information sent by the first lamp to the second lamp; ⑤ is the message of successful addressing replied by the second lamp; ⑥ is the low-level pulse signal sent by the first lamp to the second lamp). DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation methods described herein are only used to explain the present invention and are not used to limit the present invention.

[0023] Embodiment 1

[0024] like Figure 1 and Figure 2 As shown, in this embodiment, a partition control method for an aircraft cabin scene lighting system is provided. By adding an innovative instruction TOKEN line and RS485 communication in combination, coupled with a specific communication protocol, automatic and rapid addressing of all lamps in the cabin lighting system is achieved. Then, according to the correspondence between the system preset address and the area, the lamps with different addresses are partitioned, thereby realizing the partition control function of the lamps. After the address and area information of the lamp are configured, the partition control function of the lighting system can be completed through the lighting mode control command with area information. This partitioning method does not require presetting the lamp address and area information in advance. After the lamp is installed, the system can quickly and automatically complete the partitioning function through the main control panel operation, realizing the partition control function of the entrance and exit, business class, business class, and economy class area lighting.

[0025] The hardware structure and connection form of the present invention are as follows Figure 1 As shown in the figure, it mainly includes a main control panel and multiple lamps. The main control panel is connected to all lamps through the RS485 bus. The main control panel is the master device in the RS485 bus network, and all lamps are slave devices. At the same time, the main control panel is connected to the first lamp through the TOKEN line (the input of the device is marked as TOKEN_I N, and the output of the device is marked as TOKEN_OUT). The TOKEN_I N input pin of the first lamp is used to receive the data signal sent by the main control panel, and then output the TOKEN_OUT signal to the next LED lamp after processing, and so on.

[0026] When the address of the lamps in the lighting system is incorrect, all lamps in the lighting system need to be automatically addressed and partitioned. Specifically, it includes the following three parts:

[0027] 1. Automatic addressing

[0028] The output end of the main control panel outputs a signal to the first lamp and sends the first address of the first lamp to the RS485 bus. The first lamp responds to the RS485 bus command and is addressed according to the address in the RS485 information. The output end of the first lamp sends a signal to the input end of the next lamp and processes the address of the first lamp as the new address, and sends a load new address command to the RS485 bus. The next lamp is addressed according to the address loading method of the first lamp, and so on. Figure 2 As shown, the specific steps include the following:

[0029] 1.1. When the main control panel initiates the automatic addressing command, its TOKEN_OUT output terminal outputs a low pulse signal of the first preset time (such as 100ms) to the first lamp, and during the low pulse of the TOKEN signal, sends the first address of the first lamp to the RS485 bus.

[0030] Refer to the RS485 address command format such as: 5A 30 30 10 21 36 35A5, where 21 is the address, 5A 3030 10 is the fixed format, 36 35 is the check code, and A5 is the frame end. Note: The data in the following RS485 commands are all in hexadecimal.

[0031] 1.2. After the TOKEN_I N signal of the first lamp is pulled low, it responds to the RS485 bus command. First, the lamp is addressed according to the address in the RS485 information. After the addressing is successful, the address of the lamp and its related information are returned to the main control panel, and the main control panel displays the successful addressing information of the lamp.

[0032] 1.3. Then, the TOKEN_OUT output terminal of the first lamp sends a low pulse signal of the second preset time (100ms) to the TOKEN_IN input terminal of the second lamp. At the same time, the address of the first lamp is increased by one (i.e. 22) as the new address, and a load new address command is sent to the RS485 bus. The second lamp is addressed in the same way as the first lamp address loading method, and the address and related information are returned. The remaining lamps complete the addressing in the same way. When the main control panel times out when receiving the return information of the lamp, it is determined that the compilation is completed.

[0033] 2. Regional Allocation

[0034] The main control panel then sends the regional information data bound to the address to the RS485 bus, and all lamps only respond to the regional command information with the same address as the lamp, thus realizing the regional information allocation of the lamps.

[0035] The reference command format is as follows: 5A 32 21 12 33 36 36A5, where 21 is the address of the lamp, 33 is the area information, 36 36 is the check code, A5 and 5A are the frame header and frame tail respectively. Through this command, the lamp area at address 21 is allocated to 33, and the lamps at other addresses are allocated areas according to this command format.

[0036] In order to verify whether the format of the regional information is loaded successfully, after the regional information of all lamps is allocated, it is queried by sending the lamp address and regional information command. After all lamps receive the corresponding address information, they return the regional information corresponding to the address and check it with the preset address and regional relationship table to ensure that the lamp area allocation is successful. If there is any abnormality, it will be displayed on the main control panel.

[0037] 3. Lighting Zone Control

[0038] The main control panel sends the lighting mode data bound to the zone information to achieve the partition control of the lamps. For example, the lighting mode control command: 5A 31 34 20 38 34 39A5

[0039] 5A 31 is the frame header, 34 is the area information, 20 is the fixed format, 38 is the lighting mode, 34 39 is the check code, and A5 is the frame tail.

[0040] Embodiment 2

[0041] In this embodiment, a specific illustration is given of the command format for the partition control of four partitions (rear cabin, front cabin, front entrance and rear entrance) in the aircraft cabin.

[0042] 1. Address addressing command: 5A 30 30 10 21 36 35A5

[0043] 5A 30 30 10 is a fixed format, 21 is the address, 36 35 is the check code, and the address is incremented in sequence when the lamp is transmitted.

[0044] 2. Area allocation command: 5A 32 21 12 33 36 36A5

[0045] 5A 32 is a fixed format, 21 is the address, 12 is a fixed format, 33 is the assigned area number, and 36 36 is the check code. The partition reference command is as follows:

[0046] The second zone command is 5A 32 22 12 33 36 35A5

[0047] The third zone command is 5A 32 23 12 33 36 34A5

[0048] The fourth zone command is 5A 32 24 12 33 36 33A5

[0049] ………

[0050] 3. Mode control commands

[0051] During mode control, the main control panel continuously sends control mode instructions for the four partitions, as shown in Table 1, to achieve independent mode control functions for the four areas.

[0052] Table 1 Control mode instructions

[0053]

[0054]

[0055] By adopting the above technical solution disclosed in the present invention, the following beneficial effects are obtained:

[0056] The present invention provides a zoning control method for aircraft cabin scene lighting. The addressing and zoning commands are sent through the main control panel, and the addressing and zoning functions of all lamps are quickly realized through the TOKEN line and RS485 communication, thereby solving the problem of lighting zoning control. The addressing and zoning method is simple and fast. After the main control panel starts the zoning command, the addressing and zoning of all lamps can be completed within a few seconds. When controlling the lighting mode, the zoning control of lamps in different areas is realized through the different mode command buttons of the main control panel. For example, independent zoning control functions such as the low-brightness mode of the business class and the high-brightness mode of the economy class. The invention realizes the zoning control function of lamps without adding complex circuits, meeting the requirements of differentiated lighting for different areas in aircraft cabin lighting.

[0057] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be considered as the scope of protection of the present invention.

Claims

1. A partition control method for an aircraft cabin scene lighting system, characterized in that: The following steps are included: S1. Automatic addressing: The output terminal of the main control panel outputs a signal to the first lamp and sends the first address of the first lamp to the RS485 bus. The first lamp responds to the RS485 bus command and is addressed according to the address in the RS485 information. The output end of the first lamp sends a signal to the input end of the next lamp, and processes the address of the first lamp as a new address, and sends a load new address command to the RS485 bus. The next lamp is addressed according to the address loading method of the first lamp, and so on; S2. Regional allocation: The main control panel then sends the regional information data bound to the address to the RS485 bus, and all lamps only respond to the regional command information with the same address as the lamp, thus realizing the regional information allocation of the lamps; S3, lighting partition control: The main control panel sends the lighting mode data bound to the zone information to achieve zone control of the lamps.

2. The zoning control method of the aircraft cabin scene lighting system according to claim 1, characterized in that: Before step S1, it also includes connecting the main control panel and all lamps in the scene lighting system through the RS485 bus, the main control panel serves as the master device in the RS485 bus network, and all lamps are slave devices; the main control panel is connected to the first lamp through the TOKEN line, and the TOKEN_IN input pin of the first lamp is used to receive the data signal sent by the main control panel, and then outputs the TOKEN_OUT signal to the next lamp after processing, and so on.

3. The zoning control method of the aircraft cabin scene lighting system according to claim 2, characterized in that: Step S1 specifically includes the following contents: S11, when the main control panel initiates the automatic addressing command, its TOKEN_OUT output terminal outputs a low pulse signal of the first preset time to the first lamp, and during the low pulse period of the TOKEN signal, sends the first address of the first lamp to the RS485 bus; S12, after the TOKEN_IN signal of the first lamp is pulled low, it responds to the RS485 bus command. First, the lamp is addressed according to the address in the RS485 information. After the addressing is successful, the address of the lamp and its related information are returned to the main control panel, and the main control panel displays the information that the lamp is successfully addressed; S13, the TOKEN_OUT output terminal of the first lamp sends a low pulse signal of the second preset time to the TOKEN_IN input terminal of the second lamp, and at the same time, the address of the first lamp is increased by 1 as the new address, and a load new address command is sent to the RS485 bus, and the second lamp is addressed according to the address loading method of the first lamp, and the address and related information are returned; the remaining lamps complete the addressing in the same way, and when the main control panel times out when receiving the return information of the lamp, it is determined that the compilation is completed.

4. The zoning control method of the aircraft cabin scene lighting system according to claim 1, characterized in that: Step S2 also includes, In order to verify whether the format of the regional information is loaded successfully, after the regional information of all lamps is allocated, it is queried by sending the lamp address and regional information command. After all lamps receive the corresponding address information, they return the regional information corresponding to the address and check it with the preset address and regional relationship table to ensure that the lamp area allocation is successful. If there is any abnormality, it will be displayed on the main control panel.

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