Double-layer day-night curtain system and control method thereof

1 . A double-layer day-night curtain system, comprising: an upper rail, a transmission device disposed inside the upper rail, two curtain assemblies connected to the transmission device, and a drive mechanism connected to the upper rail to drive the transmission device; the two curtain assemblies are disposed in parallel; the transmission device having two transmission mechanisms disposed inside the upper rail; each of the two transmission mechanisms comprises a wire reel and a drive shaft, the wire reel is sleeved on the drive shaft, and two curtain assemblies are respectively disposed under the two transmission mechanisms; the drive mechanism comprises a first motor, a first speed reducer, a second speed reducer, a second motor and a controller; the first motor and the second motor are both electrically connected to the controller; the first motor is connected to one transmission mechanism through the first speed reducer and the second motor is connected to the other transmission mechanism through the second speed reducer.

2 . The double-layer day-night curtain system of claim 1 , wherein each transmission mechanism comprises at least two wire reels and one drive shaft, and the two wire reels are both sleeved on the one drive shaft; an output shaft at a side of the first motor is connected to the drive shaft of one transmission mechanism through the first speed reducer, and an output shaft at a side of the second motor is connected to the drive shaft of the other transmission mechanism through the second speed reducer.

3 . The double-layer day-night curtain system of claim 1 , wherein each transmission mechanism comprises at least two wire reels and two drive shafts, the two wire reels are sleeved on the two drive shafts respectively; two first speed reducers and two second speed reducers are provided; the output shaft at one side of the first motor is connected to one drive shaft of one transmission mechanism through one first speed reducer, and the output shaft at the other side of the first motor is connected to another drive shaft of one transmission mechanism through the other first speed reducer; the output shaft at one side of the second motor is connected to one drive shaft of the other transmission mechanism through one second speed reducer, and the output shaft at the other side of the second motor is connected to the other drive shaft of the other transmission mechanism through the other second speed reducer.

4 . The double-layer day-night curtain system of claim 1 , wherein the curtain assembly comprises a curtain body, a pull rope and a lower beam; the lower beam is disposed under the transmission mechanism and connected to the wire reel through the pull rope; the curtain body is disposed between the upper rail and the lower beam and the pull rope penetrates through the curtain body.

5 . The double-layer day-night curtain system of claim 1 , wherein a mounting cavity is disposed inside the upper rail, and a baffle plate is disposed at a side of the mounting cavity; the drive mechanism is disposed at the other side of the mounting cavity; the two transmission mechanisms are both disposed inside the mounting cavity, and the transmission mechanisms further comprise support seats for supporting the wire reels; a partition plate is disposed in the middle of the mounting cavity to separate the mounting cavity equally into two mounting cavities, and the two transmission mechanisms are respectively disposed in the two mounting cavities.

6 . The double-layer day-night curtain system of claim 5 , wherein the drive mechanism further comprises a mounting housing; the first motor, the first speed reducer, the second speed reducer, the second motor and the controller are all disposed inside the mounting housing and arranged to form a U-shape; parts of mounting housings for accommodating the first motor and the second motor respectively protrude into the two mounting cavities; a Hall signal plate is disposed at an end of the first motor and the second motor respectively, and the Hall signal plate is disposed in parallel to a main control board in the controller.

7 . The double-layer day-night curtain system of claim 6 , wherein it further comprises a remote controller X 1 , a remote controller X 2 , a first button module, a second button module and a communication module; the first button module, the second button module and the communication module are all electrically connected to the controller; the remote controller X 1 and the remote controller X 2 are respectively disposed at two sides of the mounting housing, and the remote controller X 1 and the remote controller X 2 are in communication connection with the controller through the communication module; the first button module is pressed to match the remote controller X 1 with the controller and the remote controller X 1 controls one drive mechanism, and the second button module is pressed to match the remote controller X 2 with the controller, and the remote controller X 2 controls the other drive mechanism.

8 . The double-layer day-night curtain system of claim 5 , wherein two mounting grooves for mounting two curtain assemblies are disposed at a lower end surface of the upper rail, and the curtain assemblies are detachably mounted into the mounting grooves.

9 . The double-layer day-night curtain system of claim 8 , wherein the curtain assemblies are mounted into the mounting grooves by insertion; one end of the curtain assembly is abutted against the baffle plate and the other end of the curtain assembly is abutted against the mounting housing when the curtain assemblies are mounted into the mounting grooves.

10 . A control method of a double-layer day-night curtain system of claim 8 , wherein it further comprises two remote controllers, respectively a remote controller X and a remote controller Y; the remote controller X is used to control the left-right type curtain assembly and the remote controller Y is used to control the up-down type curtain assembly; the control method comprises the following steps:

step A1, install the curtain assembly as required, select a corresponding remote controller according to the mounted curtain assembly; select remote controller X for left-right type curtain assembly, and then match controller X with the controller, and proceed to the next step; select remote controller Y for up-down type curtain assembly, and then match controller Y with the controller, and then skip to step A3;

step A2, when the remote controller X is successfully matched with the controller, the controller automatically switches to the control method for controlling the left-right type curtain assembly;

step A3, when the remote controller Y is successfully matched with the controller, the controller automatically switches to the control method for controlling the up-down type curtain assembly.

11 . The control method of a double-layer day-night curtain system of claim 10 , wherein two groups of buttons are disposed on the remote controller X, respectively a first group of buttons and a second group of buttons; each group of buttons respectively comprises an up button, a stop button and a down button; the control method of controlling the left-right type curtain assembly in the step A2 comprises the following steps:

step B1, the up button in the first group of buttons is pressed, and one drive mechanism drives the corresponding curtain assembly to run upward; the down button in the first group of buttons is pressed, and one drive mechanism drives the corresponding curtain assembly to run downward; the stop button in the first group of buttons is pressed, and one drive mechanism is stopped and thus the corresponding curtain assembly is stopped;

step B2, the up button in the second group of buttons is pressed, and the other drive mechanism drives the corresponding curtain assembly to run upward; the down button in the second group of buttons is pressed, and the other drive mechanism drives the corresponding curtain assembly to run downward; the stop button in the second group of buttons is pressed, and the other drive mechanism is stopped and thus the corresponding curtain assembly is stopped.

12 . The control method of a double-layer day-night curtain system of claim 10 , wherein two groups of buttons are disposed on the remote controller Y, which are a first group of buttons and a second group of buttons; each group of buttons respectively comprise an up button, a stop button and a down button, and the two drive mechanisms are a first drive mechanism and a second drive mechanism respectively; the up-down type curtain assembly comprises sequentially from top to bottom: an upper rail, a first curtain body, a first lower beam, a second curtain body, and a second lower beam; the first drive mechanism controls the first lower beam, and the first group of buttons controls the first drive mechanism; the second drive mechanism controls the second lower beam and the second group of buttons controls the second drive mechanism; the control method of controlling the up-down type curtain assembly in step A3 comprises the following steps:

step C1, when the up button or the down button in the first group of buttons or the second group of buttons is pressed separately, the first lower beam runs upward or downward, or the second lower beam runs upward or downward, and at this time, the first lower beam and the second lower beam run separately;

step C2, when the stop button in one group is pressed, the corresponding drive mechanism is stopped and the corresponding first lower beam or second lower beam is stopped; in the running mode, the controller obtains travel data of the first motor in the first drive mechanism and the second motor in the second drive mechanism in real time, and then calculate a real-time position of the first lower beam and the second lower beam, and compare the real-time position with a preset upper limit position of the first lower beam, a preset lower limit position of the second lower beam, and a preset safe distance between the first lower beam and the second lower beam, and stop the corresponding drive mechanism upon reaching.